%0 Journal Article %A M. Poveda and S. Lozecznik and J. Oleszkiewicz and Q. Yuan %D 2015 %J International Journal of Geological and Environmental Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 103, 2015 %T Evaluation of Physicochemical Pretreatment Methods on COD and Ammonia Removal from Landfill Leachate %U https://publications.waset.org/pdf/10002011 %V 103 %X The goal of this experiment is to evaluate the effectiveness of different leachate pre-treatment options in terms of COD and ammonia removal. This research focused on the evaluation of physical-chemical methods for pre-treatment of leachate that would be effective and rapid in order to satisfy the requirements of the sewer discharge by-laws. The four pre-treatment options evaluated were: air stripping, chemical coagulation, electrocoagulation and advanced oxidation with sodium ferrate. Chemical coagulation reported the best COD removal rate at 43%, compared to 18% for both air stripping and electro-coagulation, and 20% for oxidation with sodium ferrate. On the other hand, air stripping was far superior to the other treatment options in terms of ammonia removal with 86%. Oxidation with sodium ferrate reached only 16%, while chemical coagulation and electro-coagulation removed less than 10%. When combined, air stripping and chemical coagulation removed up to 50% COD and 85% ammonia. %P 846 - 851