Waste (or wastes) are unwanted or unusable materials. Waste is any substance discarded after primary use, or is worthless, defective and of no use. A by-product, by contrast is a

joint product In Economics, joint product is a product that results jointly with other products from processing a common input; this common process is also called joint production.Wouters, Mark; Selto, Frank H.; Hilton, Ronald W.; Maher, Michael W. (2012): ''Cos ...

of relatively minor

economic value In economics, economic value is a measure of the benefit provided by a good or service to an economic agent. It is generally measured through units of currency, and the interpretation is therefore "what is the maximum amount of money a speci ...

. A waste product may become a by-product, joint product or

resource Resource refers to all the materials available in our environment which are technologically accessible, economically feasible and culturally sustainable and help us to satisfy our needs and wants. Resources can broadly be classified upon their ...

through an invention that raises a waste product's value above zero. Examples include

municipal solid waste Municipal solid waste (MSW), commonly known as trash or garbage in the United States and rubbish in Britain, is a waste type consisting of everyday items that are discarded by the public. "Garbage" can also refer specifically to food waste ...

(household trash/refuse), hazardous waste,

wastewater Wastewater is water generated after the use of freshwater, raw water, drinking water or saline water in a variety of deliberate applications or processes. Another definition of wastewater is "Used water from any combination of domestic, industrial ...

(such as sewage, which contains bodily wastes ( feces and

urine Urine is a liquid by-product of metabolism in humans and in many other animals. Urine flows from the kidneys through the ureters to the urinary bladder. Urination results in urine being excreted from the body through the urethra. Cellular ...

) and surface runoff),

radioactive waste Radioactive waste is a type of hazardous waste that contains radioactive material. Radioactive waste is a result of many activities, including nuclear medicine, nuclear research, nuclear power generation, rare-earth mining, and nuclear weapons r ...

, and others.

Definitions

What constitutes waste depends on the eye of the beholder; one person's waste can be a resource for another person. Though waste is a physical object, its generation is a physical and psychological process. The definitions used by various agencies are as below.

United Nations Environment Program

According to the

Basel Convention on the Control of Transboundary Movements of Hazardous Wastes and Their Disposal The Basel Convention on the Control of Transboundary Movements of Hazardous Wastes and Their Disposal, usually known as the Basel Convention, is an international treaty that was designed to reduce the movements of hazardous waste between nations ...

of 1989, Art. 2(1), "'Wastes' are substance or objects, which are disposed of or are intended to be disposed of or are required to be disposed of by the provisions of national law".“Basel Convention.” 1989.

United Nations Statistics Division

The UNSD ''Glossary of Environment Statistics''''Glossary of Environment Statistics''
. 1997. UNSD. Updated web version 2001. describes waste as "materials that are not prime products (that is, products produced for the market) for which the generator has no further use in terms of his/her own purposes of production, transformation or consumption, and of which he/she wants to dispose. Wastes may be generated during the extraction of raw materials, the processing of raw materials into intermediate and final products, the consumption of final products, and other human activities. Residuals recycled or reused at the place of generation are excluded."

European Union

Under the Waste Framework Directive 2008/98/EC, Art. 3(1), the

European Union The European Union (EU) is a supranational political and economic union of member states that are located primarily in Europe. The union has a total area of and an estimated total population of about 447million. The EU has often been de ...

defines waste as "an object the holder discards, intends to discard or is required to discard." For a more structural description of the Waste Directive, see th
European Commission's summary

Types of Waste

Municipal Waste

The Organization for Economic Co-operation and Development also known as OECD defines municipal solid waste (MSW) as “waste collected and treated by or for municipalities”. Typically this type of waste includes

household waste Municipal solid waste (MSW), commonly known as trash or garbage in the United States and rubbish in Britain, is a waste type consisting of everyday items that are discarded by the public. "Garbage" can also refer specifically to food waste, a ...

commercial waste Commercial waste consists of waste from premises used mainly for the purposes of a trade or business or for the purpose of sport, recreation, education or entertainment, but excluding household, agricultural or industrial waste.Environmental Protection Agency concluded that 292.4 tons of municipal waste was generated which equated to about 4.9 pounds per day per person. Out of the 292.4 tons, approximately 69 million tons were recycled, and 25 million tons were composted.

Household Waste and Commercial Waste

Household waste more commonly known as trash or garbage are items that are typically thrown away daily from ordinary households. Items often included in this category include product packaging,

yard waste Green waste, also known as "biological waste", is any Organic matter, organic waste that can be composted. It is most usually composed of refuse from gardens such as grass clippings or leaves, and domestic or industrial kitchen wastes. Green wast ...

, clothing, food scraps, appliance, paints, and batteries. Most of the items that are collected by municipalities end up in

landfills A landfill site, also known as a tip, dump, rubbish dump, garbage dump, or dumping ground, is a site for the disposal of waste materials. Landfill is the oldest and most common form of waste disposal, although the systematic burial of the waste ...

across the world. In the United States, it is estimated that 11.3 million tons of textile waste is generated. On an individual level, it is estimated that the average American throws away 81.5 pounds of clothes each year. As online shopping becomes more prevalent, items such as cardboard, bubble wrap, shipping envelopes are ending up in landfills across the United States. The EPA has estimated that approximately 10.1 million tons of plastic containers and packaging ended up landfills in 2018. The EPA noted that only 30.5% of plastic containers and packaging was recycled or combusted as an energy source. Additionally, approximately 940,000 pounds of cardboard ends up in the landfill each year. Commercial waste is very similar to household waste. To be considered as commercial waste, it must come from a business or commercial occupancy. This can be restaurants, retail occupants, manufacturing occupants or similar businesses. Typically, commercial waste contains similar items such as food scraps, cardboard, paper, and shipping materials. Generally speaking, commercial waste creates more waste than household waste on a per location basis.

Construction and Demolition Waste

The EPA defines this type of waste as “Construction and Demolition (C&D) debris is a type of waste that is not included in municipal solid waste (MSW).” Items typically found in C&D include but are not limited to steel, wood products, drywall and plaster, brick and clay tile, asphalt shingles, concrete, and asphalt. Generally speaking, construction and demolition waste can be categorized as any components needed to build infrastructures. In 2018, the EPA estimated that the US generated approximately 600 million tons of C&D waste. The waste generated by construction and demolition is often intended to be reused or is sent to the landfill. Examples of reused waste is milled asphalt can be used again for the asphalt mixture or fill dirt can be used to level grade.

Hazardous Waste

The EPA defines hazardous waste as “a waste with properties that make it dangerous or capable of having a harmful effect on human health or the environment.” Hazardous Waste falls under the Resource Conservation and Recovery Act (RCRA). Under the RCRA, the EPA has the authority to control hazardous waste during its entire lifecycle. This means from the point of creation to the point where it has been properly disposed of. The life cycle of hazardous waste includes generation, transportation, treatment, and storage and disposal. All of which are included in the RCRA. Some forms of hazardous waste include

, explosive waste, and

electronic waste Electronic waste or e-waste describes discarded electrical or electronic devices. Used electronics which are destined for refurbishment, reuse, resale, salvage recycling through material recovery, or disposal are also considered e-waste. Inform ...

Radioactive Waste

Radioactive waste, often referred to as

nuclear waste Radioactive waste is a type of hazardous waste that contains radioactive material. Radioactive waste is a result of many activities, including nuclear medicine, nuclear research, nuclear power generation, rare-earth mining, and nuclear weapons ...

, is produced by various industries such as nuclear power plants, nuclear reactors, hospitals, research centers, and mining facilities. Any activity that involves radioactive material can generate radioactive waste. Furthermore, such waste emits radioactive particles, which if not handled correctly, can be both an

environmental hazard An environmental hazard is a substance, state or event which has the potential to threaten the surrounding natural environment or adversely affect people's health, including pollution and natural disasters such as storms and earthquakes. It can i ...

as well as a human health hazard. When dealing with radioactive waste, it is extremely important to understand the necessary protocols and follow the correct precautions. Failure to handle and

recycle Recycling is the process of converting waste materials into new materials and objects. The recovery of energy from waste materials is often included in this concept. The recyclability of a material depends on its ability to reacquire the p ...

these materials can have catastrophic consequences and potentially damage the site's ecosystems for years to come. Radioactive waste is monitored and regulated by multiple governmental agencies such as Nuclear Regulatory Commission (NRC),

Department of Energy A Ministry of Energy or Department of Energy is a government department in some countries that typically oversees the production of fuel and electricity; in the United States, however, it manages nuclear weapons development and conducts energy-re ...

(DOE), Environmental Protection Agency (EPA), Department of Transportation (DOT), and Department of the Interior (DOI). Each agency plays an important role in creating, handling, and properly disposing of radioactive waste. A brief description of each agency’s role can be found below. NRC: “Licenses and regulates the receipt and possession of high-level waste at privately owned facilities and at certain DOE facilities.” DOE: “Plans and carries out programs for sand handling of DOE-generated radioactive wastes, develops waste disposal technologies, and will design, construct and operate disposal facilities for DOE-generated and commercial high-level wastes.” EPA: “Develops environmental standards and federal radiation protection guidance for offsite radiation due to the disposal of spent nuclear fuel and high-level and transuranic radioactive wastes.” DOT: “Regulates both the packaging and carriage of all hazardous materials including radioactive waste.” DOI: “Through the U.S. Geological Survey, conducts laboratory and field geologic investigations in support of DOE’s waste disposal programs and collaborates with DOE on earth science technical activities.” The US currently defines five types of radioactive waste, as shown below.

High-level Waste High-level waste (HLW) is a type of nuclear waste created by the reprocessing of spent nuclear fuel. It exists in two main forms: * First and second cycle raffinate and other waste streams created by nuclear reprocessing. * Waste formed by vit ...

: This type of radioactive waste is generated from nuclear reactors or reprocessing spent nuclear fuel.

Transuranic Waste Transuranic waste (TRU) is stated by U.S. regulations, and independent of state or origin, to be waste which has been contaminated with alpha emitting transuranic radionuclides possessing half-lives greater than 20 years and in concentrations g ...

: This type of radioactive waste is man-made and has an atomic number of 92 or higher. Uranium or thorium mill tailings: This type of radioactive waste is a result after the mining or milling or uranium or thorium ore.

Low-level waste Low-level waste (LLW) or Low-level radioactive waste (LLRW) is nuclear waste that does not fit into the categorical definitions for intermediate-level waste (ILW), high-level waste (HLW), spent nuclear fuel (SNF), transuranic waste (TRU), or ce ...

: This type of radioactive waste is radioactively contaminated waste. It is typically generated from industrial processes or research. Examples of these items include paper, protective clothing, bags, and cardboard. Technologically enhanced naturally-occurring radioactive material (TENORM): This type of radioactive waste is created through human activity such as mining, oil and gas drilling, and water treatment where naturally-occurring radiological material (NORM) becomes concentrated.

Energetic Hazardous Waste

The EPA defines energetic hazardous waste as “wastes that have the potential to detonate and bulk military propellants which cannot safely be disposed of through other modes of treatments.” The items which typically fall under this category include

munitions Ammunition (informally ammo) is the material fired, scattered, dropped, or detonated from any weapon or weapon system. Ammunition is both expendable weapons (e.g., bombs, missiles, grenades, land mines) and the component parts of other weap ...

, fireworks, flares, hobby rockets, and automobile propellants.

Munitions

Munitions were added to hazardous waste in 1997 when the EPA finalized RCRA. A special rule was added to address munitions in waste. This new rule is commonly referred to as the Military Munitions Rule. The EPA defines military munitions as “all types of both conventional and chemical ammunition products and their components, produced by or for the military for national defense and security (including munitions produced by other parties under contract to or acting as an agent for DOD—in the case of Government Owned/Contractor Operated OCOoperations).” The entire rule can be foun
here
While a large percentage of munitions waste is generated by the government or governmental contractors, residents also throw away expired or faulty ammunition inside their household waste.

Fireworks, Flares, and Hobby Rockets

Every year, the US generates this type of waste from both the commercial and consumer aspects. This waste is often generated from fireworks, signal flares and hobby rockets which have been damaged, failed to operate or for other reasons. Due to their chemical properties, these types of devices are extremely dangerous.

Automobile Airbag Propellants

While automobile airbag propellants are not as common as munitions and

fireworks Fireworks are a class of low explosive pyrotechnic devices used for aesthetic and entertainment purposes. They are most commonly used in fireworks displays (also called a fireworks show or pyrotechnics), combining a large number of devices ...

, they share similar properties which makes them extremely hazardous. Airbag propellants characteristics of reactivity and ignitability are the characteristics which qualify for hazardous waste. When disposed undeployed, leaves these two hazardous characteristics intact. To properly dispose of these items, they must be safely deployed which removes these hazardous characteristics. The EPA includes the waste of automobile airbag propellants under the RCRA. In 2018, the EPA issued a final rule on handling of automobile airbag propellants. The �
interim final rule
��provides an exemption of entities which install and remove airbags. This includes automobile dealerships, salvage yards, automobile repair facilities and collision centers. The handler and transporter are exempt from RCRA, but the airbag waste collection facility is not exempt. Once the airbags have met the collection center, it will then be classified as RCRA hazardous waste and must be disposed or recycled at a RCRA disposal facility.

Electronic Waste

Electronic waste Electronic waste or e-waste describes discarded electrical or electronic devices. Used electronics which are destined for refurbishment, reuse, resale, salvage recycling through material recovery, or disposal are also considered e-waste. Inform ...

, often referred to as “E-Waste” or “E-Scrap,” are often thrown away or sent to a recycler. E-Waste continues to end up in landfills across the world. The EPA estimates that in 2009, 2.37 million tons of televisions, computers, cell phones, printers, scanners, and fax machines were discarded by US consumers. Only 25% of these devices were recycled; the remainder ended up in landfills across the US. E-Waste contains many elements that can be recycled or re-used. Typically speaking, electronics are encased in a plastic or light metal enclosure. Items such as computer boards, wiring, capacitors, and small motor items are common types of E-waste. Of these items, the internal components include

oil An oil is any nonpolar chemical substance that is composed primarily of hydrocarbons and is hydrophobic (does not mix with water) & lipophilic (mixes with other oils). Oils are usually flammable and surface active. Most oils are unsaturated ...

iron Iron () is a chemical element with Symbol (chemistry), symbol Fe (from la, Wikt:ferrum, ferrum) and atomic number 26. It is a metal that belongs to the first transition series and group 8 element, group 8 of the periodic table. It is, Abundanc ...

gold Gold is a chemical element with the symbol Au (from la, aurum) and atomic number 79. This makes it one of the higher atomic number elements that occur naturally. It is a bright, slightly orange-yellow, dense, soft, malleable, and ductile me ...

palladium Palladium is a chemical element with the symbol Pd and atomic number 46. It is a rare and lustrous silvery-white metal discovered in 1803 by the English chemist William Hyde Wollaston. He named it after the asteroid Pallas, which was itself na ...

platinum Platinum is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name originates from Spanish , a diminutive of "silver". Pla ...

, and

copper Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkis ...

. All of which are mined from the earth’s core. For these items to be mined, it requires massive amounts of energy to operate the equipment, which emits

greenhouse gases A greenhouse gas (GHG or GhG) is a gas that absorbs and emits radiant energy within the thermal infrared range, causing the greenhouse effect. The primary greenhouse gases in Earth's atmosphere are water vapor (), carbon dioxide (), methane ...

into the atmosphere. Donating e-waste to recycling centers or refurbishing this equipment can reduce the greenhouse gases emitted through the mining process. It will also lower the usage of our naturally formed products to ensure future generations will have sufficient natural resources. As this issue continued to grow,

President Obama Barack Hussein Obama II ( ; born August 4, 1961) is an American politician who served as the 44th president of the United States from 2009 to 2017. A member of the Democratic Party, Obama was the first African-American president of the ...

established the Interagency Task Force on Electronics Stewardship in November 2010. The overall goal for this task was to develop a national strategy for handling and proper disposal of electronic waste. The task force would work with the

White House Council on Environmental Quality The Council on Environmental Quality (CEQ) is a division of the Executive Office of the President that coordinates federal environmental efforts in the United States and works closely with agencies and other White House offices on the developmen ...

(CEQ), EPA, and the US General Services Administration (GSA). The task force released the final product, th
National Strategy for Electronics Stewardship report
The report focuses on four goals of the federal government’s plan to enhance the management of electronics, as shown below. 1. Incentivizing greener design of electronics 2. Leading by example 3. Increasing domestic recycling 4. Reducing harmful exports of e-waste and building capacity in developing countries. E-Waste is not only a problem in the US, but also a global issue. To tackle this issue, requires collaboration from multiple agencies across the world. Some agencies include U.S. EPA, Taiwan Environmental Protection Administration (Taiwan EPA), International E-Waste Management Network (IEMN), and environmental offices from

Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an are ...

Latin America Latin America or * french: Amérique Latine, link=no * ht, Amerik Latin, link=no * pt, América Latina, link=no, name=a, sometimes referred to as LatAm is a large cultural region in the Americas where Romance languages — languages derived f ...

, the Caribbean,

Africa Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...

, and North America.

Mixed Waste

Mixed waste is a term that has different definitions based its context. Most commonly, Mixed Waste refers to hazardous waste which contains radioactive material. In this context, the management of mixed waste is regulated by the EPA and RCRA and Atomic Energy Act. The Hazardous materials content is regulated by RCRA while the radiological component is regulated by the Department of Energy (DOE) and Nuclear Regulatory Commission (NRC). Mixed waste can also be defined as a type of waste which includes recyclable materials and organic materials. Some examples of mixed waste in this context include a combination of broken glassware, floor sweepings, non-repairable household goods, non-recyclable plastic and metal, and clothing and furnishings. Additionally, ashes and soot, residential renovation waste materials are also included under this definition.

Medical Waste

This type of waste is typically generated from

hospitals A hospital is a health care institution providing patient treatment with specialized health science and auxiliary healthcare staff and medical equipment. The best-known type of hospital is the general hospital, which typically has an emerge ...

, physicians' offices, dental practices, blood banks,

veterinary Veterinary medicine is the branch of medicine that deals with the prevention, management, diagnosis, and treatment of disease, disorder, and injury in animals. Along with this, it deals with animal rearing, husbandry, breeding, research on nutri ...

offices, and research facilities. This waste has often been contaminated with

bodily fluids Body fluids, bodily fluids, or biofluids, sometimes body liquids, are liquids within the human body. In lean healthy adult men, the total body water is about 60% (60–67%) of the total body weight; it is usually slightly lower in women (52-55%). ...

from humans or animals. Examples of this type of contamination can include

blood Blood is a body fluid in the circulatory system of humans and other vertebrates that delivers necessary substances such as nutrients and oxygen to the cells, and transports metabolic waste products away from those same cells. Blood in the cir ...

vomit Vomiting (also known as emesis and throwing up) is the involuntary, forceful expulsion of the contents of one's stomach through the mouth and sometimes the nose. Vomiting can be the result of ailments like food poisoning, gastroenterit ...

, and other bodily fluids. Concerns started to generate when medical waste was appearing on east coast beaches in the 1980’s. This forced congress to pass the

Medical Waste Tracking Act The Medical Waste Tracking Act of 1988 was a United States federal law concerning the illegal dumping of body tissues, blood wastes and other contaminated biological materials. It established heavy penalties for knowingly endangering life through ...

. This act was only in effect for approximately 3 years after the EPA concluded the “disease-causing medical waste was greatest at the point of generation and naturally tapers off after that point.” Prior to the Hospital Medical Infectious Waste Incinerator (HMIWI) standard, approximately 90% of the infectious waste was incinerated before 1997. Due to the potential of negatively affect air quality, alternative treatment and disposal technologies for medical waste was developed. These new alternatives include: *Thermal Treatment, such as microwave technologies *Steam sterilization, such as autoclaving *Electropyrolysis *Chemical mechanical systems

Reporting

Waste generation per day per capita, September 2018

There are many issues that surround reporting waste. It is most commonly measured by size or weight, and there is a stark difference between the two. For example,

organic waste Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms and other living things by composting, aerobic digestion, anaerobic digesti ...

is much heavier when it is wet, and plastic or glass bottles can have different weights but be the same size. On a global scale it is difficult to report waste because countries have different definitions of waste and what falls into waste categories, as well as different ways of reporting. Based on incomplete reports from its parties, the

Basel Convention The Basel Convention on the Control of Transboundary Movements of Hazardous Wastes and Their Disposal, usually known as the Basel Convention, is an international treaty that was designed to reduce the movements of hazardous waste between nations ...

estimated 338 million tonnes of waste was generated in 2001. For the same year, OECD estimated 4 billion tonnes from its member countries."Improving Recycling Markets." OECD Environment Program. Paris: OECD, 2006
oecd.org
Despite these inconsistencies, waste reporting is still useful on a small and large scale to determine key causes and locations, and to find ways of preventing, minimizing, recovering, treating, and disposing waste.

Costs

Environmental costs

Inappropriately managed waste can attract rodents and

insects Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of j ...

, which can harbour gastrointestinal parasites,

yellow fever Yellow fever is a viral disease of typically short duration. In most cases, symptoms include fever, chills, loss of appetite, nausea, muscle pains – particularly in the back – and headaches. Symptoms typically improve within five days. ...

, worms, the plague and other conditions for humans, and exposure to hazardous wastes, particularly when they are burned, can cause various other diseases including cancers.

Toxic waste Toxic waste is any unwanted material in all forms that can cause harm (e.g. by being inhaled, swallowed, or absorbed through the skin). Mostly generated by industry, consumer products like televisions, computers, and phones contain toxic chemi ...

materials can contaminate surface water, groundwater, soil, and air which causes more problems for humans, other species, and

ecosystems An ecosystem (or ecological system) consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the syst ...

.Diaz, L. et al. ''Solid Waste Management, Volume 2.'' UNEP/Earthprint, 2006. A form of waste disposal involving

combustion Combustion, or burning, is a high-temperature exothermic redox chemical reaction between a fuel (the reductant) and an oxidant, usually atmospheric oxygen, that produces oxidized, often gaseous products, in a mixture termed as smoke. Combus ...

creates a significant amount of

. When the burned waste contains metals, it can create toxic gases. On the other hand, when the waste contains plastics, the gases produce contain CO₂_. As global warming and CO₂ emission increase, soil begins to become a larger

carbon sink A carbon sink is anything, natural or otherwise, that accumulates and stores some carbon-containing chemical compound for an indefinite period and thereby removes carbon dioxide () from the atmosphere. Globally, the two most important carbon si ...

and will become increasingly volatile for our plant life.

Social costs

Waste management is a significant

environmental justice Environmental justice is a social movement to address the unfair exposure of poor and marginalized communities to harms from hazardous waste, resource extraction, and other land uses.Schlosberg, David. (2007) ''Defining Environmental Justic ...

issue. Many of the environmental burdens cited above are more often borne by marginalized groups, such as racial minorities, women, and residents of developing nations.

NIMBY NIMBY (or nimby), an acronym for the phrase "not in my back yard", is a characterization of opposition by residents to proposed developments in their local area, as well as support for strict land use regulations. It carries the connotation that ...

(not in my back yard) is the opposition of residents to a proposal for a new development because it is close to them. However, the need for expansion and siting of waste treatment and disposal facilities is increasing worldwide. There is now a growing market in the transboundary movement of waste, and although most waste that flows between countries goes between developed nations, a significant amount of waste is moved from developed to developing nations.

Economic costs

The economic costs of managing waste are high, and are often paid for by municipal governments; money can often be saved with more efficiently designed collection routes, modifying vehicles, and with public education. Environmental policies such as

pay as you throw Pay as you throw (PAYT) (also called trash metering, unit pricing, variable rate pricing, or user-pay) is a usage-pricing model for disposing of municipal solid waste. Users are charged a rate based on how much waste they present for collection to ...

can reduce the cost of management and reduce waste quantities. Waste recovery (that is,

recycling Recycling is the process of converting waste materials into new materials and objects. The recovery of energy from waste materials is often included in this concept. The recyclability of a material depends on its ability to reacquire the p ...

, reuse) can curb economic costs because it avoids extracting raw materials and often cuts transportation costs. "Economic assessment of municipal waste management systems – case studies using a combination of life-cycle assessment (LCA) and life-cycle costing (LCC)". The location of waste treatment and disposal facilities often reduces property values due to noise, dust, pollution, unsightliness, and negative stigma. The informal waste sector consists mostly of

waste picker A waste picker is a person who salvages reusable or recyclable materials thrown away by others to sell or for personal consumption. There are millions of waste pickers worldwide, predominantly in developing countries, but increasingly in post-i ...

s who scavenge for metals, glass, plastic, textiles, and other materials and then trade them for a profit. This sector can significantly alter or reduce waste in a particular system, but other negative economic effects come with the disease, poverty, exploitation, and abuse of its workers.

Affecting communities

People in developing countries suffer from

contaminated water Water pollution (or aquatic pollution) is the contamination of water bodies, usually as a result of human activities, so that it negatively affects its uses. Water bodies include lakes, rivers, oceans, aquifers, reservoirs and groundwater. Water ...

and landfills caused by unlawful government policies that allow first-world countries and companies to transport their trash to their homes and oftentimes near bodies of water. Those same governments do not use any waste trade profits to create ways to manage landfills or clean water sources. Photographer Kevin McElvaney documents the world’s biggest e-waste dump called

Agbogbloshie Agbogbloshie is a nickname of a commercial district on the Korle Lagoon of the Odaw River, near the center of Accra, Ghana's capital city in the Greater Accra region. Near the slum called "Old Fadama", the Agbogbloshie site became known as a ...

Accra, Ghana Accra (; tw, Nkran; dag, Ankara; gaa, Ga or ''Gaga'') is the capital and largest city of Ghana, located on the southern coast at the Gulf of Guinea, which is part of the Atlantic Ocean. As of 2021 census, the Accra Metropolitan District, , ...

, which used to be a

wetland A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The p ...

. The young men and children that work in Agbogbloshie smash devices to get to the metals, obtain burns, eye damage, lung and back problems, chronic nausea, debilitating headaches, and respiratory problems and most workers die from

cancer Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. These contrast with benign tumors, which do not spread. Possible signs and symptoms include a lump, abnormal b ...

in their 20s (McElvaney).In McElvaney’s photos, kids in fields burning refrigerators and computers with blackened hands and trashed clothes and animals, such as cows with open wounds, in the dumpsite. There are piles of waste used as makeshift bridges over lakes, with metals and chemicals just seeping into the water and

groundwater Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractures of rock formations. About 30 percent of all readily available freshwater in the world is groundwater. A unit of rock or an unconsolidated ...

that could be linked to homes' water systems. The same unfortunate situation and dumps/landfills can be seen in similar countries that are considered the third world, such as other West African countries and China. Many Advocating for waste management, stop waste trade, create wastewater treatment facilities, and ultimately provide a clean and accessible water source. The health of all these people in landfills and water are human necessities/rights that are being taken away.

Management

Wastewater facilities

Wastewater treatment facilities remove

pollutants A pollutant or novel entity is a substance or energy introduced into the environment that has undesired effects, or adversely affects the usefulness of a resource. These can be both naturally forming (i.e. minerals or extracted compounds like o ...

and

contaminants Contamination is the presence of a constituent, impurity, or some other undesirable element that spoils, corrupts, infects, makes unfit, or makes inferior a material, physical body, natural environment, workplace, etc. Types of contamination ...

physically and chemically to clean water to be returned to society. The South Gippsland Water Organization breaks down the three steps of waste-water treatment. The primary treatment is to sift through the water to remove large solids to leave oils and small particles in the water. Secondary treatment to dissolve/remove oils, particles, and micro-organisms from the water to be prepared for tertiary treatment to chemically disinfect the water with

chlorine Chlorine is a chemical element with the symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine i ...

or with

UV light Ultraviolet (UV) is a form of electromagnetic radiation with wavelength from 10 nm (with a corresponding frequency around 30 PHz) to 400 nm (750 THz), shorter than that of visible light, but longer than X-rays. UV radiation i ...

. “For most industrial applications, a 150,000 GPD capacity WWTS would cost an estimated $500,000 to $1.5 million inclusive of all necessary design, engineering, equipment, installation, and startup”. With such a simple solution that has been proven to clean our water to be reused and is relatively inexpensive, there is no excuse why there should not be a waste-water treatment facility in every country, every state, and every town.

Benefits

“Right now, according to a

NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the US federal government responsible for the civil List of government space agencies, space program ...

-led study, many of the world’s freshwater sources are being drained faster than they are being replenished. The

water table The water table is the upper surface of the zone of saturation. The zone of saturation is where the pores and fractures of the ground are saturated with water. It can also be simply explained as the depth below which the ground is saturated. T ...

is dropping all over the world. There’s not an infinite supply of water”. There is a need to preserve every resource, every finite water source that we do have left to maintain our lives and lifestyles. Able countries helping under-developed countries with their creation of wastewater treatments benefits society. With the addition of wastewater treatment facilities with spending a few million dollars and infrastructure to clean our areas and freshwater to reuse instead of over-using our land and water supply, which would be the greatest cost. Another cost of not adding wastewater treatments in countries is that people have no choice but to clean with, cook with, or drink the contaminated water which has caused millions of disease cases and deaths. “Between 400,000 and 1 million people die each year in developing countries because of diseases caused by mismanaged waste, estimates poverty charity Tearfund”. Society has the means to decrease or even eliminate this way of death and save millions of lives by providing the simple human necessity of clean water.

Utilization

Resource recovery

Energy recovery

Energy recovery Energy recovery includes any technique or method of minimizing the input of energy to an overall system by the exchange of energy from one sub-system of the overall system with another. The energy can be in any form in either subsystem, but mos ...

from waste is using non-recyclable waste materials and extracting from it heat, electricity, or energy through a variety of processes, including

, gasification, pyrolyzation, and

anaerobic digestion Anaerobic digestion is a sequence of processes by which microorganisms break down biodegradable material in the absence of oxygen. The process is used for industrial or domestic purposes to Waste management, manage waste or to produce fuels. Mu ...

. This process is referred to as

waste-to-energy Waste-to-energy (WtE) or energy-from-waste (EfW) is the process of generating energy in the form of electricity and/or heat from the primary treatment of waste, or the processing of waste into a fuel source. WtE is a form of energy recovery. Mo ...

. There are several ways to recover energy from waste.

Anaerobic digestion Anaerobic digestion is a sequence of processes by which microorganisms break down biodegradable material in the absence of oxygen. The process is used for industrial or domestic purposes to Waste management, manage waste or to produce fuels. Mu ...

is a naturally occurring process of

decomposition Decomposition or rot is the process by which dead organic substances are broken down into simpler organic or inorganic matter such as carbon dioxide, water, simple sugars and mineral salts. The process is a part of the nutrient cycle and is e ...

where organic matter is reduced to a simpler chemical component in the absence of

oxygen Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as ...

Incineration Incineration is a waste treatment process that involves the combustion of substances contained in waste materials. Industrial plants for waste incineration are commonly referred to as waste-to-energy facilities. Incineration and other high ...

or direct controlled burning of municipal solid waste to reduce waste and make

energy In physics, energy (from Ancient Greek: ἐνέργεια, ''enérgeia'', “activity”) is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of hea ...

. Secondary recovered fuel is the energy recovery from waste that cannot be reused or recycled from mechanical and biological treatment activities.

Pyrolysis The pyrolysis (or devolatilization) process is the thermal decomposition of materials at elevated temperatures, often in an inert atmosphere. It involves a change of chemical composition. The word is coined from the Greek-derived elements ''py ...

involves heating of waste, with the absence of oxygen, to high temperatures to break down any

carbon Carbon () is a chemical element with the symbol C and atomic number 6. It is nonmetallic and tetravalent—its atom making four electrons available to form covalent chemical bonds. It belongs to group 14 of the periodic table. Carbon mak ...

content into a mixture of gaseous and liquid fuels and solid residue. Gasification is the conversion of carbon rich material through high temperature with partial oxidation into a gas stream. Plasma arc heating is the very high heating of municipal solid waste to temperatures ranging from 3,000 to 10,000 °C, where energy is released by an electrical discharge in an inert atmosphere. Using waste as fuel can offer important environmental benefits. It can provide a safe and

cost-effective Cost-effectiveness analysis (CEA) is a form of economic analysis that compares the relative costs and outcomes (effects) of different courses of action. Cost-effectiveness analysis is distinct from cost–benefit analysis, which assigns a monetar ...

option for wastes that would normally have to be dealt with through disposal. It can help reduce

carbon dioxide Carbon dioxide ( chemical formula ) is a chemical compound made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in the gas state at room temperature. In the air, carbon dioxide is trans ...

emissions by diverting energy use from fossil fuels, while also generating energy and using waste as fuel can reduce the

methane emissions Increasing methane emissions are a major contributor to the rising concentration of greenhouse gases in Earth's atmosphere, and are responsible for up to one-third of near-term global heating. During 2019, about 60% (360 million tons) of methane r ...

generated in landfills by averting waste from landfills. There is some debate in the classification of certain biomass feedstock as wastes. Crude Tall Oil (CTO), a co-product of the pulp and papermaking process, is defined as a waste or residue in some European countries when in fact it is produced “on purpose” and has significant value add potential in industrial applications. Several companies use CTO to produce fuel, while the pine chemicals industry maximizes it as a feedstock “producing low-carbon, bio-based chemicals” through cascading use.

Education and awareness

Education Education is a purposeful activity directed at achieving certain aims, such as transmitting knowledge or fostering skills and character traits. These aims may include the development of understanding, rationality, kindness, and honesty ...

and

awareness Awareness is the state of being conscious of something. More specifically, it is the ability to directly know and perceive, to feel, or to be cognizant of events. Another definition describes it as a state wherein a subject is aware of some infor ...

in the area of waste and

waste management Waste management or waste disposal includes the processes and actions required to manage waste from its inception to its final disposal. This includes the collection, transport, treatment and disposal of waste, together with monitorin ...

is increasingly important from a global perspective of

resource management In organizational studies, resource management is the efficient and effective development of an organization's resources when they are needed. Such resources may include the financial resources, inventory, human skills, production resources, or i ...

. The

Talloires Declaration {{Short description, Declaration for sustainability The Talloires Declaration is a declaration for sustainability, created for and by presidents of institutions of higher learning. Jean Mayer, Tufts University president, convened a conference of 22 ...

is a declaration for sustainability concerned about the unprecedented scale and speed of environmental

pollution Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the ...

and

degradation Degradation may refer to: Science * Degradation (geology), lowering of a fluvial surface by erosion * Degradation (telecommunications), of an electronic signal * Biodegradation of organic substances by living organisms * Environmental degradatio ...

, and the depletion of

natural resources Natural resources are resources that are drawn from nature and used with few modifications. This includes the sources of valued characteristics such as commercial and industrial use, aesthetic value, scientific interest and cultural value. ...

. Local, regional, and global

air The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere. The atmosphere of Earth protects life on Earth by creating pressure allowing f ...

pollution; accumulation and distribution of toxic wastes; destruction and depletion of forests,

soil Soil, also commonly referred to as earth or dirt Dirt is an unclean matter, especially when in contact with a person's clothes, skin, or possessions. In such cases, they are said to become dirty. Common types of dirt include: * Debri ...

, and

water Water (chemical formula ) is an Inorganic compound, inorganic, transparent, tasteless, odorless, and Color of water, nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living ...

; depletion of the ozone layer and emission of "green house" gases threaten the survival of humans and thousands of other living species, the integrity of the earth and its

biodiversity Biodiversity or biological diversity is the variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic (''genetic variability''), species (''species diversity''), and ecosystem (''ecosystem diversity'') l ...

, the security of nations, and the heritage of future generations. Several universities have implemented the Talloires Declaration by establishing environmental management and waste management programs, e.g. the waste management university project.

University A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. Universities typically offer both undergraduate and postgraduate programs. In the United States ...

and

vocational A vocation () is an occupation to which a person is especially drawn or for which they are suited, trained or qualified. People can be given information about a new occupation through student orientation. Though now often used in non-religious c ...

education are promoted by various organizations, e.g. WAMITAB and

Chartered Institution of Wastes Management The Chartered Institution of Wastes Management (CIWM) is a professional body for the waste management industry in the United Kingdom and other countries. Based in Northampton, it has ten regional centres throughout England, Scotland, Wales, North ...

Gallery

Veg waste Hyd Market.jpg, Vegetable waste being dumped in a market in

Hyderabad Hyderabad ( ; , ) is the capital and largest city of the Indian state of Telangana and the ''de jure'' capital of Andhra Pradesh. It occupies on the Deccan Plateau along the banks of the Musi River, in the northern part of Southern India ...

Weapon scraps.JPG, Weapon scraps Agobox.jpg, Agobox; Bio-medical Waste Hospital waste.JPG,

Hospital waste Biomedical waste or hospital waste is any kind of waste containing infectious (or potentially infectious) materials. It may also include waste associated with the generation of biomedical waste that visually appears to be of medical or laboratory ...

Garbage in a Tricycle.jpg, Waste collected in a tricycle Shacks and waste by illegal immigrants, South Africa (R560).jpg, Shacks and littering by illegal immigrants in

South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. It is bounded to the south by of coastline that stretch along the Atlantic Ocean, South Atlantic and Indian Oceans; to the ...

File:Scan of Newport cigarettes found in Olneyville, Rhode Island - 2008.jpg, used cigarette boxes File:Recycling point Gdansk University of Technology.jpg, Recycling point at the

Gdańsk University of Technology The Gdańsk University of Technology (Gdańsk Tech, former ''GUT''; pl, Politechnika Gdańska) is a technical university in the Wrzeszcz borough of Gdańsk, and one of the oldest universities in Poland. It has eight faculties and with 41 fie ...

File:Recycling containers Gdansk University of Technology, Poland.jpg, Containers for selective waste collection at the Gdańsk University of Technology

References

External links

* *
Cambio verde: waste-food exchange project in Curitiba, Brazil

at the

OECD The Organisation for Economic Co-operation and Development (OECD; french: Organisation de coopération et de développement économiques, ''OCDE'') is an intergovernmental organisation with 38 member countries, founded in 1961 to stimulate e ...

{{Authority control Waste of resources