垃圾渗沥液污染水体治理的工艺研究与工程实践

Technology Research and Practice on Treating Sewage Polluted by Landfill Leachate

采用混凝沉淀、土工管袋截留、活性炭吸附的工艺对受垃圾渗沥液污染的水体进行处理,现场试验和工程实施中发现:混凝剂的盐基度和加入量对色度脱除率有较大影响;絮凝剂的电性和分子量对色度脱除率、絮体团聚性能有较大影响;活性炭的碘值和类型对COD去除率影响较大;土工管袋在本项目中起到了代替沉淀池的作用。

For the sewage polluted by landfill leachate, coagulating sedimentation, tube-bag reject, and activated car-bon adsorption was adopted. It was found that by means of field test and project implementation, the quantity and basicity of thecoagulant had a great influence on the removal rate of chromaticity, the electrical property and molecular weight of the floccu-lant had a influence on the removal rate of chromaticiW and the aggregation, the iodine value and type of activated carbon had agreat impact on COD removal rate. The tube-bag replaced the sedimentation tank in this project.