G-BAF和CAS处理微污染河水的对比研究  

Comparison of Micro-polluted River Water Treatment by G-BAF and Activated Sludge Process

作　　者：瞿艳芝[1] 刘操[2] 廖日红[2] 姚磊[1] 叶正芳[1] 王培京[2] 

机构地区：[1]北京大学环境工程研究所水沙科学教育部重点实验室,北京100871 [2]北京市水利科学研究所,北京100004

出　　处：《中国给水排水》2010年第1期60-62,共3页China Water & Wastewater

基　　金：国家高技术研究发展计划(863)项目(2003AA601010)

摘　　要：通过对比固定化曝气生物滤池(G-BAF)与活性污泥法(CAS)两种工艺处理微污染河水的效果,揭示了G-BAF工艺治理微污染水体的优势。结果表明,试验后期,G-BAF对浊度、COD、NH3-N和TP的平均去除率分别达到90.0%、50.1%、93.5%和51.1%,均比CAS高出40%以上。G-BAF处理后出水中的有机物以羧酸和酮类物质为主,而CAS处理后出水中仍含有较多的难降解物质。G-BAF的载体表面附着有大量的细菌以及多种形态的原、后生动物,增强了对氮、磷及难降解有机物的去除能力。Micro-polluted river water was treated by gala-biological aerated filter （G-BAF） and conventional activated sludge process （CAS）. The comparison of the removal rates reveals that G-BAF has great advantages to treat micro-polluted water. In the later experimental stage, the average removal rates of turbidity, COD, NH3 -N and TP by G-BAF are 90.0% , 50.1% , 93.5% and 51.1% , which are above 40% higher than those by CAS. The effluent of G-BAF mainly contains carboxylic acid and ke- tones, while the effluent of CAS still contains lots of refractory organic compounds. There are lots of bacteria, protozoan and metazoan species immobilized on the carrier surface in GoBAF, which can enhance the removal effect of nitrogen, phosphorus and refractory organic compounds.

关 键 词：固定化曝气生物滤池 活性污泥法 微污染河水 

分 类 号：X703[环境科学与工程—环境工程]