Evaluation of the efficiency of different materials to remove specific pollutants from landfill leachate
Toufik Rachiq, Younes Abrouki, Jamal Mabrouki, Nora Samghouli, Cheïma Fersi, Sabir Rahal, Souad El Hajjaji
Abstract
ABSTRACT The management of solid waste and its by-products is considered as one of the major concerns. Namely, the leachate and biogas that are collected, treated and transported directly to the landfill. For this reason, this study aims to characterize these Leachate samples and to evaluate the technical efficiency and the socio-economic performance of an infiltration-percolation treatment as a technique, which is adopted on appropriate fixed natural supports. In this regard, we evaluated the performance of the various adsorbents tested for the treatment of leachates, and then we analyzed the results of the best filtration media from the point of view of purification performance. The physical–chemical monitoring of these tests employs activated carbon filter and clay. However, the mixture of these two elements has shown that we obtained an average reduction in pollution in terms of suspended solids with about 80%, 78% and 94%, respectively, an average reduction of the chemical oxygen demand of 90%, 69% and 73%, respectively, but with an increase in conductivity and pH for the sand filter media.