两种改善富营养化湖泊水质的生物膜技术比较  

COMPARISON OF TWO BIOFILM TECHNOLOGIES TO IMPROVE WATER QUALITY OF EUTROPHIC LAKES

作　　者：吴永红[1] 刘剑彤[1] 丘昌强[1] 

机构地区：[1]中国科学院水生生物研究所

出　　处：《水处理技术》2005年第5期34-37,共4页Technology of Water Treatment

基　　金：国家重大水环境专项(2002A A601021);国家高技术研究发展专项(2002A A601013);中科院重大项目(K ZCX1-SW-12);中科院水生所创新课题(220316)

摘　　要：用三个长宽高各为1.0m×1.0m×1.2m的水缸,装15cm的底泥和85cm的富营养化污水,来模拟水/底泥系统。分别在两个水缸中布设软性填料和自制人工水草来改善水质,另一水缸做空白对照。结果表明:在同投影面积下,布设人工水草比布设软性填料提高水体透明度的速度快;布设软性填料和人工水草在第36d时,CODMn分别降低89.63%、92.90%;TN分别降低93.45%、94.97%;NH3-N分别降低65.10%、70.15%;两者对TP都有一定影响。总体效果而言,人工水草处理效果优于软性填料。Two water/sediment simulation systems were constructed with an aquarium (1.0m long×1.0m wide×1.2m high respectively) filled with suitable amount of water(85cm high) and sediments(15cm high) collected from the eutrophic Yuehu lake in Wuhan City; known amount of two different biofilm materials(soft medium and artificial aquatic mat) were added as sanctifiers into each water/sediment simulation system; another system was used as a control. The experimental results showed that, at the same projective area, the transparency increasing by artificial aquatic mat was faster than soft medium's; COD removal rate reached to 89.63% and 92.90 % , TN removal rate reached to 43.46% and 94.97% and NH4+-N removal rate reached to 65.10%, 70.15% respectively for soft medium and artificial aquatic mat. The both had a certain influence on TP. As far as total effect is concerned, the treating effect of artificial aquatic mat was superior to soft medium's.

关 键 词：富营养化 技术比较 湖泊水质 生物膜 软性填料 水体透明度 CODMN NH3-N 投影面积 处理效果 水草 人工 布设 水缸 底泥 污水 TP 

分 类 号：X524[环境科学与工程—环境工程] TP334.7[自动化与计算机技术—计算机系统结构]