吸附法去除水中微量油的实验研究  

Experimental study on the removal of trace oil from water by adsorption

作　　者：李和[1,2] 李国忠 钱晓斌 张剑锋 廖书全 于萍[1] 

机构地区：[1]武汉大学化学与分子科学学院,湖北武汉430072 [2]华能巢湖发电有限责任公司,安徽巢湖238000 [3]江阴兴澄特种钢铁有限公司,江苏江阴214429

出　　处：《工业水处理》2014年第5期69-72,共4页Industrial Water Treatment

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。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

关 键 词：中水回用 微量油去除 吸附剂 

分 类 号：X703[环境科学与工程—环境工程]