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环境工程
2009 年 6 月第 27 卷第 3 期 1 17
滇池流域受污染河流原位处理技术研究
杨逢乐金竹静王伟
(云南省环境科学研究院,云南昆明 650034)
摘要:采用生物膜技术对滇池流域受污染入湖河流进行原位处理实验,结果表明该方法能够有效的解决受污染河流黑
臭问题,能够较好的改善河流水质,降低河流中污染物的量。实验直接布设于天然河道中,系统运行效果受到降雨、上
游水质变化、反应区溶解氧浓度、生物量和水力停留时间的影响。实验中通过对各影响因素的分析和改进,使系统可
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达到稳定的去除效果,处理后的出水透明度达到1 m以上,COD 去除率达 42 2 % ,BOD5 去除率达 41 4 % ,总氮去除率达
17 % ,氨氮去除率达 14 %。生物膜技术应用于受污染河流的原位治理,是一种适合滇池流域污染治理的有效方法。
关键词:滇池;原位处理技术;生物带;溶解氧
THE EXPERIMENTAL STUDY ON IN SITU TECHNOLOGY FOR TREATMENT
OF POLL UTED RIVERS IN DIANCHI WATERSHED
Yang Fengle Jin Zhujing Wang Wei
( Yunnan Institute of Environmental Science , Kunming 650034 , China)
Abstract : The biofilm technology as one of in situ technologies was used to treat polluted rivers in Dianchi Watershed. The results
showed that the process could clear up the black and odorous water and remove contaminate in the river. The experiment was set up
into the natural river way , and the function was affected by precipitation , change in water quality of upper stream , dissolved oxygen ,
microbial biomass and hydraulic retention time. These factors were changed to make system in a suitable situation. After the water in
the polluted river flowed through the system , the water transparency was up to 1 meter above , and the removal rates of COD , BOD5 ,
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TN and NH4 N were respectively 42 2 % , 41 4 % , 17 % and