人工湿地小试系统藻类去除效果的变化研究

人工湿地小试系统藻类去除效果的变化研究

REMOVAL EFFICIENCY OF ALGAE BY DIFFERENT SMALL SYSTEMS OF PLOTS IN CONSTRUCTED WETLAND

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长江流域资源与环境 >> 2005, Vol. 14 >> Issue (2): 229-232.

吴振斌，邓平，吴晓辉，成水平，付贵萍，贺锋

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2005-03-20
通讯作者: 邓平

WU Zhen-bin, DENG Ping, WU Xiao-hui, CHENG Shui-ping, FU Gui-ping, HE Feng

Received:1900-01-01 Revised:1900-01-01 Online:2005-03-20
Contact: DENG Ping

摘要： 夏季在水力负荷为800mm/d间歇式进水条件下，研究了人工湿地不同工艺流程的8套小试系统SSP（system of small plot）内部水流方向上藻类去除率的变化。结果表明：人工湿地小试系统中，藻类生物量沿水流方向逐渐减少，除藻率在出水处均达到最大值。藻类的去除主要发生在湿地水流方向的前几层，而系统其他层对藻类只有微弱的去除效果。由下行池与上行池构成的湿地系统中，去藻是上、下行池共同作用的结果。在有推流床或塘处理系统参与的湿地系统中，它们对藻类的去除均有一定的作用。去藻作用主要是基质的拦截，不同的水流方向、植物和微生物也起到了一定作用。湿地对藻类的去除率在夏季一般都能达到90%以上，证明人工湿地是一种有效的除藻生态-生物方法,对除藻要求比较高水体的湿地构建及工艺流程的设计、组合具有重要意义。

关键词: 人工湿地, 藻类, 去除率

Abstract: The removal rates of algae with different layers were compared in different 8 systems of small plot in summer with intermittent hydraulic loading of 800mm/d. The experimental results showed that the algae biomass decreased with water flows in different systems and the removal rate was maximum in effluent water. The constructed wetland was a good new ecological method for treating eutropic lakes water with abundant algae. The removal rate of algae in summer was up to 90%. The main effects on removing of algae were occurred in the frontal layers, and other layers were faintly efficient. Jointed up-flow and down-flow chambers removed algae. Plug-flow bed and pond systems also had roles in removing. In system substrate was dominant in removing algae, different directions of water flow, plant and microbiology had some effects. It will be an important sense to design constructed wetland with high removal efficiency of algae.

Key words: constructed wetland, algae, removal rate

吴振斌,邓平,吴晓辉,成水平,付贵萍,贺锋. 人工湿地小试系统藻类去除效果的变化研究[J]. 长江流域资源与环境, 2005, 14(2): 229-232.

WU Zhen-bin, DENG Ping, WU Xiao-hui, CHENG Shui-ping, FU Gui-ping, HE Feng. REMOVAL EFFICIENCY OF ALGAE BY DIFFERENT SMALL SYSTEMS OF PLOTS IN CONSTRUCTED WETLAND[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2005, 14(2): 229-232.

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