Integrated Chemical and Biological Technique for Landfill Leachate Treatment
نویسنده
چکیده
Landfilling although is a popular and economical method of solid waste disposal is associated with the risk of environmental degradation due to inherent problem of leachates. Leachate continues to be of concern especially when it comes into contact with ground water and surface water. Thus a proper treatment of leachate is essential prior to discharge of leachate into surface and subsurface environments. Advanced oxidation methods have proven to be one of the successful methods for treating the leachate. In the present study, the viability of sulphate radical based oxidation is used as a pretreatment to enhance biodegradability of matured leachate followed by biological treatment using Membrane bioreactor. The combined effect of chemical and biological treatment was found to be successful in removing 91.6 % COD and 99% ammonia nitrogen when the persulphate was temperature activated at 90 0 C
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