contaminants
How Contaminants Leach Out of Landfill Waste and Into Leachate
A major problem arising from landfills is the discharge of leachate which is formed by water passing through the tip and thus becoming contaminated with various organic and inorganic pollutants. The subsequent movement of the leachate into the surrounding soil, ground water or surface water could lead to severe pollution problems. The mechanisms by which […]
Leachate Fact File 1 – Contaminants Found in Leachate: POLYCHLORINATED BIPHENYLS, PCBS
Be one of the first to buy this fact sheet! It’s the first of a planned series of Leachate Contaminant Fact Files! Our leachate fact sheets are based upon research carried out for the UK Department of Environment in the mid-1990s, updated and presented in bite-sized documents. Designed as reference sources for leachate treatment scientists, […]
Wastewater Treatment in Wetlands: Contaminant Removal Processes
An Introduction to Wastewater Treatment in Wetlands Originally published by U.S. Department of Agriculture, Cooperative Extension Service, University of Florida Wastewater treatment in wetlands can be highly effective, [including for leachates]. Wetlands are commonly known as biological filters, providing protection for water resources such as lakes, estuaries and ground water. Although wetlands have always served this purpose, […]
Leachate Recirculation
Leachate recirculation in the form of pumping leachate from the base of a cell back up into the top of the waste has been practised in the past, and continues to be used, at the majority of landfills.
Leachate
Leachate starts as rainfall. Rain falling on the top of the landfill is the main contributor to the generation of leachate, and is by far the largest contributor for modern sanitary landfills which do not accept liquid waste. In old unlined and un-engineered landfills, some leachate is produced from groundwater entering the waste. Some, additional […]