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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

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【作者】 吴永红刘剑彤丘昌强

【Author】 Wu Yong-hong1,2 , Liu Jian-tong1, Qiu Chang-qiang1 (1.Institute of Hydrobiology, The Chinese Academy of Sciences, Wuhan 430072, China; 2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China)

【机构】 中国科学院水生生物研究所中国科学院水生生物研究所 武汉430072 中国科学院研究生院北京100039武汉430072武汉430072

【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。

【Abstract】 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】 人工水草富营养化湖泊水质
【Key words】 artificial mateutrophic lake, water quality
【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)
  • 【文献出处】 水处理技术 ,Technology of Water Treatment , 编辑部邮箱 ,2005年05期
  • 【分类号】X524
  • 【被引频次】10
  • 【下载频次】386
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