Slurry transport uses several methods:
hydraulic conveying; conventional lean
slurry
A slurry is a mixture of denser solids suspended in liquid, usually water. The most common use of slurry is as a means of transporting solids or separating minerals, the liquid being a carrier that is pumped on a device such as a centrifugal pu ...
conveying; and high concentration slurry disposal (HCSD). The latter, HCSD, is a relatively modern approach, which is used to transfer high throughputs of fine
fly ash
Fly ash, flue ash, coal ash, or pulverised fuel ash (in the UK) plurale tantum: coal combustion residuals (CCRs)is a coal combustion product that is composed of the particulates (fine particles of burned fuel) that are driven out of coal-fired ...
over long distances (>) using high pressure diaphragm pumps with
velocities of around 2 m/s. Ash disposal is simple as the ash
solidifies easily and the system does not produce the waste water or
leachate
A leachate is any liquid that, in the course of passing through matter, extracts soluble or suspended solids, or any other component of the material through which it has passed.
Leachate is a widely used term in the environmental sciences wher ...
problems which can often be associated with ash
lagoons.
Examples
Typical HCSD systems include the Clyde Bergemann solution designed to reduce water usage (up to 90% by weight), reduce ground and surface
water pollution, reduce dust emission surrounding
landfill
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 ...
site, increase disposal area working capacity and lower
energy consumption
Energy consumption is the amount of energy used.
Biology
In the body, energy consumption is part of energy homeostasis. It derived from food energy. Energy consumption in the body is a product of the basal metabolic rate and the physical activity ...
.
See also
*
High-density solids pump High-density solids pumps are hydrostatically operating machines which displace the medium being pumped and thus create a flow.
High-density solids and their transport
High-density solids are mixtures of liquid and solid constituents; examples incl ...
References
2: Miedema, S.A., Slurry Transport: Fundamentals, a Historical Overview and The Delft Head Loss & Limit Deposit Velocity Framework. http://www.dredging.org/media/ceda/org/documents/resources/othersonline/miedema-2016-slurry-transport.pdf
External links
CASE STUDY: Modern materials handling solution installed at Eraring power plant, Australia
{{DEFAULTSORT:Slurry Transport
Waste treatment technology