摘要： 中水中含有微量油，为了满足中水回用深度处理中离子交换树脂或反渗透膜的要求，采用吸附法降低其含量。采用了5种常见的吸附剂进行实验，结果表明：活性炭效果最好，硅藻土和高岭土次之，白土和壳聚糖效果最差。对活性炭进行化学改性，改性后活性炭的吸附效果明显，对比改性前后活性炭的结构，发现活性炭的比表面积、孔容、孔径及微孔数量均有增加，活性炭改性后吸附效果得到改善的原因是改善了其物理吸附和化学吸附。

关键词: 中水回用, 微量油去除, 吸附剂

Abstract: Since recycled water contains trace oil,adsorption method has been used for lowering the oil content,so as to meet the requirements of ion exchanger resin and reverse osmosis membrane in the advanced treatment of recycled water reuse. The results show that the adsorption effect of activated carbon is the best,diatomite and kaolin are the next best and clay and chitosan are the worst. After the activated carbon is modified chemically,its adsorption effect is remarkable. The structures of activated carbon before and after the modification have been compared. It is found that all of the specific surface area,pore volume,pore size and the number of micropores are increased. The reason why the effects are improved after modification is that its physical adsorption and chemical adsorption have been improved

Key words: recycled water reuse, trace oil removal, adsorbent

中图分类号: 

• X703