摘要
城市污水厂在净化污水的同时，产生了大量的含高浓度重金属离子（Mn＋）等有毒物的剩余活性污泥（WAS），如何有效地处置利用它已引起社会的广泛关注，将部分WAS作吸附剂回流至初沉池来降低污水及污泥中Mn＋含量，是一个非常好的创新设想．该研究旨在作有关WAS的静态实验，发现其吸附规律和几个主要因子（pH，吸附时间，投配比等）的最佳值．结果表明活性污泥对Cu2＋和Zn2＋有很好的吸附效果．
Municipal sewage treatment plant produces a lot of waste activated sludge(WAS) containing high concentrations of metal-ion and other harmful material when it cleans sewage. How to dispose and utilize sludge has attracted wide concern. A valuable innovative suggestion is that some WAS be used as absorbent and retumed to the primary cldrifier to decrease the content of metal-ion in the sewage and sludge. This study aimed at doing some absorption experiment in the laboratory in order to elucidate adsorption patterns and the optimal values of factors involved. The result indicated that WAS exhibited potential for Cu2+ and Zn2+ adsorption.
出处
《华南农业大学学报》
CAS
CSCD
北大核心
1999年第3期94-98,共5页
Journal of South China Agricultural University
基金
华南农业大学校长基金
