摘要
粉煤灰是一种固体废弃物,其比表面积较大,常被用作吸附材料而广泛应用于污水的处理。文中参考国内外有关资料,综合论述了粉煤灰在城市污水处理中的应用研究历史和现状,包括重金属离子(Cu2+、Hg(Ⅱ)、铬离子等)的去除,阴离子(F-、PO43-等)的去除,各种有机污水的处理,并分析了当前粉煤灰用于污水处理存在的主要问题,提出了今后需研究的主要方向。
Fly ash-one of the solid wastes, is widely used as an absorbent in the sewage treatment because of its certain specific surface area. A discussion is given to the history and status quo of its application study according to relevant literatures from both home and abroad, such as the removal of heavy metal ions (Cu2+, Hg (Ⅱ), Chromium ion et al),anions (F-,P043- et al)and the sewage treatment of various organic chemical pollutants. Not only the main problems on fly ash used in the sewage treatment have been analysed,but also the main development directions have been put forward.
出处
《大众科技》
2004年第4期79-80,56,共3页
Popular Science & Technology
关键词
粉煤灰
城市污水处理
问题
Fly ash
city sewage treatment
problems
