Unité de Recherche URIE, Ecole Nationale Polytechnique, 10 Avenue Hacen Badi, 16200 Algiers, Algeria.
Unité de Recherche URIE, Ecole Nationale Polytechnique, 10 Avenue Hacen Badi, 16200 Algiers, Algeria.
Waste Manag. 2018 May;75:384-390. doi: 10.1016/j.wasman.2018.02.003. Epub 2018 Feb 13.
This study focuses on the treatment of both organic and metallic pollution in the Staoueli landfill leachate. This leachate contains a large amount of organic and inorganic matter and it must imperatively be treated before being released into the environment. Our work presents a comparative study between two membrane sequenced batch bioreactors (B2 contains indigenous leachate bacteria and B1 contains activated sludge). The purpose is to assess the best treatment to use, one that allows the reduction of the polluting load of the leachate and a reduction of membrane fouling. Performances were evaluated by measuring the chemical oxygen demand (COD) and the metal content of the leachate (zinc, iron). The results showed a similar COD removal efficiency in B2 (95%) and B1 (93%). Coupling the bioreactors with an ultrafiltration process allowed a notable reduction in zinc and iron concentrations: Fe of 35% and Zn of 78% for B1UF, and Fe of 71% and Zn of 74% for B2UF.
本研究专注于斯塔乌利垃圾填埋场渗滤液中有机和金属污染的处理。该渗滤液含有大量的有机和无机物质，在排放到环境中之前必须进行处理。我们的工作对两种膜序批式生物反应器（B2 含有本土渗滤液细菌，B1 含有活性污泥）进行了比较研究。目的是评估最佳的处理方法，既能减少渗滤液的污染负荷，又能减少膜污染。通过测量渗滤液的化学需氧量（COD）和金属含量（锌、铁）来评估性能。结果表明，B2（95%）和 B1（93%）的 COD 去除效率相似。将生物反应器与超滤工艺相结合，可以显著降低锌和铁的浓度：B1UF 中 Fe 的去除率为 35%，Zn 的去除率为 78%，B2UF 中 Fe 的去除率为 71%，Zn 的去除率为 74%。
