湖泊富营养化水体生态修复技术国内外研究进展.doc

湖泊富营养化水体生态修复技术国内外研究进展() 摘要: 湖泊富营养化是指氮、磷等营养物质大量进入水体并致使水体的溶解氧下降、透明度降低、水质恶化、鱼类及其他生物大量死亡的现象。富营养化水体治理技术按照治理手段可分为化学处理、物理处理和生态修复处理方法等。化学方法处理污染水体主要是添加化学药剂改变水体中氧化还原电位去除水体中悬浮物质和有机质。物理治理技术措施包括人工曝气、调水冲污、河道疏浚等措施。水体生态修复技术包括生物膜法处理技术、微生物制剂技术、人工湿地处理及生物栅修复等。本文阐述了当前国内外水体生态修复技术的相关研究进展并比较了各方法的优缺点,并对未来富营养化水体生态修复技术做了展望。关键词: 富营养化;生态修复技术 Research of water ecological restoration technology about lake eutrophication () Abstract: Lake eutrophication refers that nutrients of nitrogen and phosphorus are into the water, bringing the phenomenon that clarity and dissolved oxygen drop causing deterioration of water quality and death of fishes and other creatures. Treatments of eutrophic water include chemical treatment, physical treatment and ecological restoration. Chemical method are that adding chemicals into water changs redox potential to remove suspended substances. P hysical treatments include artificial aeration, flushing and river dredging. E cological restoration technolog ies include the biological membrane, microbial preparation, artificial floating island and biological grid restoration. This paper describes the progress research of ecological remediation technologies for the present pares the advantages and disadvantages, and makes forecast for the future ecological restoration technologies of eutrophic water. Keywords: eutrophication; E cological restoration technolog ies 前言我国是一个多湖泊的国家,全国湖泊共有 275