沉水植物修复受污水体净化效能的研究  

Research on Purification Efficiency of Polluted Water Remediation by Submerged Macrophytes

作　　者：沈耀良[1] 王美敬[2] 李勇[1] 张维佳[1] 费忠民[1] 罗麟[2] 黄勇[1] 

机构地区：[1]苏州科技学院江苏省<环境科学与工程>重点实验室,江苏苏州215011 [2]四川大学高速水力学国家重点实验室,四川成都610065

出　　处：《苏州科技学院学报（工程技术版）》2005年第4期1-4,共4页Journal of Suzhou University of Science and Technology （Engineering and Technology）

基　　金："十五"国家重大科技水专项资助项目(2003AA601070);江苏省"十五"社会发展重大项目(BS2004048)

摘　　要：对金鱼藻、苦草和伊乐藻三类沉水植物净化受污水体的效果进行了试验研究。研究表明,三种沉水植物对水体水质均有良好的净化效果,可有效地去除水体中的N、P类植物营养物。其中可使NH4+-N和TN分别由1.1～1.3和3.7～4.6mg/L降低至0.1～0.15和0.71～1.02mg/L,PO43--P和TP分别由0.06～0.08和0.45～0.47mg/L降低至0.014～0.018和0.03～0.071mg/L。研究结果表明:三类沉水植物对水体水质均有良好的修复效果,其中以伊乐藻尤优,金鱼藻次之,苦草再次之。同时可明显改善水体的透明程度,提高水体DO并利于土著微生物的协同作用。The study of purification efficiency of polluted water remediation by submerged Macrophytes, including Ceratophyllum Demersum L., Vallistteria Spiralis and Elodea Nuttalli was conducted. The results showed that each specie of three submerged Macrophytes was capable of removing nutrients（nitrogen and phosphorus） from the polluted water effectively, that the concentrations of NH4＋-N and TN could be reduced from 1.1～1.3 and 3.7～4.6 mg/L to 0.1～0.15 and 0.71～1.02 mg/L respectively,and that the concentrations of PO4^3--P and TP could be reduced from 0.06～0.08 and 0.45～0.47 mg/L to 0.014～0.018 and 0.03～0.071 rag/L, respectively. It was shown that these three submerged Maerophytes have a good property in improving water quality and Elodea Nuttalli could obtain the best results. Each species can enhance the water transparency and increase the dissolution oxygen, thus promoting the biodegradation by in-site microbes.

关 键 词：沉水植物 水体修复 金鱼藻 苦草 伊乐藻 

分 类 号：X52[环境科学与工程—环境工程]