Dear,Bougdour Nadia

Landfill leachate is a complex polluted liquid that gets formed due to passing of rainwater through landfill and brings along out with it high amount of dissolve as well as suspend matter. It does have to rainfall always , it can be formed due to natural humidly and water of organic matter.The formation of the dissolve and suspend matter is due to biochemical process that takes places inside the landfill.

The landfill leachate is characterized by high amount of Organics (BOD and COD),

nutrient (nitrogen and phosphorus), Dissolve solids, heavy metal etc. However, characteristic of landfill leachate mainly depends on the age of the landfill and as well as in the types of waste that reaches the landfill. Treatment infrastructure is mainly designed to take care of this problems. The treatment treatment options includes: 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. Coagulation using lime, alum, ferric chloride, and land treatment. Advanced techniques such as carbon adsorption, ion exchange. There are also a huge depository of research available for treatment of landfill leachate using greener methods like using engineering wetland , also called as constructed wetland. Constructed wetland are generally not opted for aged landfill leachate.

Hari

Aerated Lagoon and Activated Sludge process should be the most suitable ones. In practice, I have found, Aerated Lagoons are widely employed.

Thank you for your valuable suggestion. Can you please send me few of your and/or some other good papers or references where in it has been demonstrated that added to eliminate the organics matters (so that we can cite)