不同类型人工湿地净化水质季节变化分析 -《江苏农业科学》

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Title:: Analysis of seasonal change of different types of constructed wetland to purify water quality

作者:: 舒柳; 四川工程职业技术学院建筑系，四川德阳 618000

Author(s):: Shu Liu

关键词:: 人工湿地; 净化水质; 季节变化

Keywords:: -

分类号:: S181.6

DOI:: -

文献标志码:: A

摘要:: 研究了垂直流、水平流、表面流和沟渠型4种不同类型人工湿地处理净化水质的季节变化。结果表明，4种人工湿地对总氮(TN)的平均去除率分别为61.8%、58.6%、57.1%和41.3%；对氨氮(NH⁺₄-N)的平均去除率分别为62.8%、52.4%、56.0%和41.5%；对总磷(TP)的平均去除率分别为65.5%、59.5%、42.2%和38.8%；对生物耗氧量(BOD₅)的平均去除率分别为41.0%、32.1%、35.9%和30.5%；对化学耗氧量(COD_Cr)的平均去除率分别为64.1%、58.9%、57.5%和49.8%；对高锰酸钾指数的去除率分别为51.1%、43.6%、47.6%和32.5%。综合比较可知，人工湿地植被能有效促进湿地对污水的去除效果，不同人工湿地去除效果存在一定的差异，4种不同类型人工湿地对TN、TP、NH⁺₄-N、BOD₅和高锰酸钾指数的去除效果较好，对COD_Cr的去除效果较差，以垂直流人工湿地去除效果最好，水平流和表面流人工湿地次之，沟渠型人工湿地去除效果最差。从出水水质稳定性来看，垂直流人工湿地出水各项指标最稳定，水平流和表面流次之，沟渠型人工湿地最差；4种人工湿地对污水去除率随季节均呈“V”形变化，基本表现为秋季>夏季≈冬季>春季。

Abstract:: -

参考文献/References:

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