How can we dispose leachate collected from a landfill?
What is leachate treatment?
Leachate Treatment 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.
Where does leachate go in a landfill?
It goes to the dump. And whenever the organic waste content of the landfill begins to "sweat" during anaerobic decomposition, or rain falls on the landfill, this leakage can then end up in local water sources.
Can leachate be reused?
While leachate recycle can reduce the strength of some MSW leachate, it still can pollute large amounts of groundwater. Leachate recycling is best used during the early stage in a fermentation/ leaching, wet-cell approach to MSW management.
What do landfills do with leachate?
Leachate is liquid generated from rainfall and the natural decomposition of waste that is filtered through the landfill to a leachate collection system. The leachate collection system's job is to direct the leachate to collection sumps so it can be properly removed from the landfill.
How do you remove leachate from the landfill?
There are many methods of leachate treatment [5] such as: Aerobic Biological Treatment such as aerated lagoons and activated sludge. Anaerobic Biological Treatment such as anaerobic lagoons, reactors. Physiochemical treatement such as air stripping, pH adjustment, chemical precipitation, oxidation, and reduction.
How can leachate be disposed of?
Leachate can be treated by biological processes, such as activated sludge. Biological treatment and metals precipitation produce sludges that, upon dewatering, can usually be disposed of at the landfill generating the leachate.
How do landfills deal with 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.