Abstract:

The characteristics of removal of typical organic pollutants by the biological-chemical combined treatment system，including sequence batch reactor（SBR），coagulation，Fenton and biological aerated filter（BAF）processes，were investigated by using GC-MS technique. Seventy kinds of organic pollutants were detected and discovered in landfill leachate. As a result，the total removal efficiency of all organic pollutants was 99% by the combined process，and 57 kinds of organic pollutants were completely removed，10 kinds of organic pollutants were removed by more than 90% while the removal efficiencies of others reached over 50%. Moreover，SBR could degrade low molecular weight fractions significantly，such as aromatic hydrocarbons and esters. and Fenton process could degrade the high molecualr weight fractions preferentially.

摘要：

采用GC-MS技术分析生物-物化组合工艺[SBR+混凝+Fenton +曝气生物滤池（BAF）]处理垃圾渗滤液中各处理单元对有机污染物的去除特性。结果表明，垃圾渗滤液原水中检测出70种有机污染物。组合工艺对有机污染物的总去除率达到99%，其中57种有机物被完全去除，10种有机物去除率可达90%以上，3种有机物去除率达50%以上。另外，SBR基本去除芳香烃类、酯类等小分子量的有机物，而Fenton对大分子量的有机物去除效果较好。