粉煤灰技术在污水处理中的应用研究及存在问题讨论  

Study on application of fly ash in urban sewage treatment and discussions about existing problems

作　　者：杨崇豪[1] 周瑞云[1] 

机构地区：[1]华北水利水电学院研究生处,郑州450008

出　　处：《环境污染治理技术与设备》2003年第2期49-53,共5页Techniques and Equipment for Environmental Pollution Control

摘　　要：对国内外污水处理中应用粉煤灰技术的现状进行了文献综述 ,并从环境保护与市场机制这个视角对粉煤灰在污水处理中的应用及存在问题进行了分析讨论。粉煤灰具有一定的吸附性能以及细微粒径特征 ,在污水处理中可以获得较好效果。但是同时会产生数倍的污泥增量 ,有些污泥甚至是有毒的 ,会产生二次污染。通过对历史事件的回顾认为以粉煤灰为原料制备混凝剂等 ,尽管在技术上可行 。The present report carried out a generalized description of applying fly ash technology in wastewater treatment based on documents,and also discussed the employment of fly ash technology and the representing problems in wastewater treatment on view of environmental protection and market mechanism.Because of the sorption capacity and the characteristics of the minute diameter of a fly ash particle,the application of these ash can carry out quite satisfying results.But at the same time the amount of sludge would be multiplied. Some amount of the sludge is even toxic,thus secondary pollution are produced.Review on historic affaires,we hold that it is technically feasible to use fly ash to make coagulant,but not advisable on view of market economics.

关 键 词：粉煤灰 污水处理 吸附性能 混凝剂 火电厂 废物利用 

分 类 号：X703.5[环境科学与工程—环境工程] X773.05