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人工湿地中COD、NH4-N去除的研究
The Removal of CODCr and NH4-N in the System of Constructed Wetlands
【摘要】 采用两段表面流人工湿地处理城市污水。污水经AB法处理后 ,再经人工湿地处理。第一段人工湿地水力停留时间 (HRT)为 3d ,COD去除率为 40 %～ 60 % ,NH4 -N的去除率为 5 0 %～ 70 %。第二段人工湿地水力停留时间 (HRT)为 3d ,COD平均去除率大于 5 0 % ,NH4 -N平均去除率大于 90 %。
【Abstract】 The system was consisted of two-stage batch surface flow constructed wetlands treating municipal wastewater. After municipal wastewater was treated by the way of adsorption biodegradation, the wastewater was treated by the system of constructed wetlands. The first -stage constructed wetland was surface flow. After 3 days of HRT ,COD Cr removal varied from 40% to 60%,NH 4-N removal varied from 50%～70%.The second-stage constructed wetland was also surface flow. After 3 days of HRT ,COD Cr average removal exceeded 50%,NH 4-N average removal exceeded 90%.
- 【文献出处】 山东化工 ,Shandong Chemical Industry , 编辑部邮箱 ,2004年04期
- 【分类号】X799.303
- 【被引频次】20
- 【下载频次】541