生物飘带在河道水质净化中的应用及分析
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摘要
河道水质原位改善修复可有效降低湖泊污染负荷并提高其环境容量。采用生物飘带技术进行河道水质净化处理,经自然挂膜,生物飘带表面生物相较为丰富,细菌、原生和后生动物共同发挥作用。工程前期对COD、氨氮去除量分别可达1 608、246 kg/d,达到了河道水流经过各生物飘带处理段后COD降解1 000 kg/d、NH3-N降解140 kg/d的处理要求,实现了污染物质的有效去除。工程运行效果表明:基于生物飘带的河道原位修复技术可对污染河流实现有效处理。
The in-situ remediation technology can effectively reduce the pollution load of a river and enhance its environment capacity. Bio-strips were adopted to purify the river water quality. After natural biofilm formation,biofacies were rich in the surface of bio-strips,including bacteria,protozoa and metazoa. The early data indicated that removal of COD and NH3- N could reach 1 608 kg /d and 246kg /d respectively,which met the requirements for the removal rates of 1 000 kg /d for COD and 140 kg /d for NH3- N after treatment. The engineering effect showed that the in-situ remediation technology using bio-strips could effectively purify contaminated rivers.
The in-situ remediation technology can effectively reduce the pollution load of a river and enhance its environment capacity. Bio-strips were adopted to purify the river water quality. After natural biofilm formation,biofacies were rich in the surface of bio-strips,including bacteria,protozoa and metazoa. The early data indicated that removal of COD and NH3- N could reach 1 608 kg /d and 246kg /d respectively,which met the requirements for the removal rates of 1 000 kg /d for COD and 140 kg /d for NH3- N after treatment. The engineering effect showed that the in-situ remediation technology using bio-strips could effectively purify contaminated rivers.
引文
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[5]梅翔,陈洪斌,高廷耀,等.微污染水源水生物接触氧化处理工艺的启动与运行工况的调节[J].给水排水,1999,25(4):8-11.
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[2]董慧峪,强志民,李庭刚,等.污染河流原位生物修复技术进展[J].环境科学学报,2010,30(8):1577-1582.
[3]虞中杰,王东启,陈振楼,等.人工浮床加挂填料对富营养河水的净化效果[J].中国给水排水,2011,27(17):31-35.
[4]程尘.生物飘带技术在新洲河污水处理中的应用[J].东北水利水电,2007,25(10):53-55.
[5]梅翔,陈洪斌,高廷耀,等.微污染水源水生物接触氧化处理工艺的启动与运行工况的调节[J].给水排水,1999,25(4):8-11.
[6]陈坤,李根保,李敦海,等.无根萍、酵母菌和红螺菌的水质净化和抑藻作用[J].生态科学,2007,26(5):428-431.