Leachate, a landfill by-product, is created when water seeps through solid waste. Leachate treatment includes biological and chemical treatment to remove harmful constituents so the treated water can be safely discharged.
What is meant by leachate?
Leachate is defined as any contaminated liquid that is generated from water percolating through a solid waste disposal site, accumulating contaminants, and moving into subsurface areas. The composition and concentrations of leachate may also shift with the age of deposited materials.
Is leachate good for the environment?
Whenever it rains or snows, the water runs through landfills creating a liquid pollution called leachate. Leachate contains all kinds of harmful chemicals, which are known to cause environmental issues as well as serious harm to human health.
What is leachate and why is it a problem?
Leachate is the liquid formed when waste breaks down in the landfill and water filters through that waste. This liquid is highly toxic and can pollute the land, ground water and water ways.
What happens with leachate?
Leachate drains to the leachate collection system, where it is transferred to a central collection pump and piped to an onsite holding pond. If necessary, the leachate is transported to an approved offsite wastewater treatment plant for disposal.
How do you handle leachate?
Leachate can be treated by biological processes, such as activated sludge. Physicochemical processes are used to remove metals, ammonia, and dissolved solids, among other parameters. Membrane separation is an effective method for clarifying mixed liquor produced during biological treatment.
What is leachate and why is it a concern?
'Leachate' is the term for the liquid pollution that seeps through a landfill's waste pile when it rains or snows. The leachate contains all sorts of harmful chemicals, many of which are known to cause cancer or other serious harm to human health.Sep 9, 2019