| 人工湿地废水处理系统的生物学基础研究进展 |
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| 引用本文： | 成水平.人工湿地废水处理系统的生物学基础研究进展[J].湖泊科学,1996,8(3):268-273. |
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| 作者姓名： | 成水平 |
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| 作者单位： | 中国科学院水生生物研究所 武汉430072 |
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| 摘 要： | 主要阐述了人工湿地废水处理系统中生物学基础的研究进展，至今，对作为湿地生产者的水生植物研究较多，水生植物除直接吸收利用废水中的营养物质，吸附和富集重金属外，还起输送氧气至根区，形成根区多种微环境和维护湿地水力传输的作用；而对作为湿地分解者的微生物的研究较少，湿地微生物的代谢活动是废水中有机物质降解的基础机制。
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| 关 键 词： | 人工湿地 废水处理 水生植物 微生物 生物学 |
| 收稿时间： | 1995/6/26 0:00:00 |
| 修稿时间： | 9/5/1995 12:00:00 AM |
Advances in biological fundamental studies on artificial wetland wastewater treatment system |
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| Cheng Shuiping.Advances in biological fundamental studies on artificial wetland wastewater treatment system[J].Journal of Lake Science,1996,8(3):268-273. |
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| Authors: | Cheng Shuiping |
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| Institution: | Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072 |
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| Abstract: | This paper describes the advances in biological fundamental studies on artificial wetland wastewater treatment systems. In general, wetlands are the overlappd. parts of the land and water area, temporary or permanent shallow water is over the surfaces, and macrophytes are the dominant species. From the 1970s, artificial wetland wastewater treatment systems were developed from wetlands to enhance the wetlands' water purifying function. Mediums, macrophytes, microorganisms are the basic elements and wastwater treatment is the main function of the artificial wetlands.At present, much more studies are carried out on the role of macrophytes in artificial wetlands, but fewer on microorganisms(including bacteria, actionomyces, fungus, protozoan, al-gae). Macrophytes uptake nutrients, adsorb and accumulate metals and other pernicious sub-stances directly,also supply oxygen to the rhizosphere, establish diversified microcosms, in-crease and stabilish the hydraulic conductivity of the wetland. However, microorganisms are decomposers in wetland. The metabolic activities of microorganisms are the basic mechanisms of the organic content decomposing. During the microorganisms' metabolic activities, organic substances can be decomposed into terminal products which evaporate into the atmosphere, or nutrients which macrophytes and microorganisms can uptake, or substances which no or less pernicious to water area.Therefore, the studies on biological fundamental in artificial wetland must be developed, especially on microorganisms. Making systematic studies on the bacteria, actinomyces, fungus, protozoans and algae of the wetland are very useful for pursuing the mechanisms of wastewater treatment further and enhancing pollutant removal effects in artificial wetland. |
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| Keywords: | artificial wetland wastewater treatment macrophyte microorganism |
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