人工湿地对水质净化效能研究——以天津某区域净化湿地为例

Study on water purification of wetland in Tianjin

为探究天津某区域湿地对水质净化功能与效果,对湿地进口、出口水质因子进行了监测,并采用综合营养指数法进行评价。结果显示,与湿地进口水质相比,出口水质COD、NH_(3)-N、TN、TP和Chl-a相应去除率分别达到45.0%、42.0%、37.7%、69.7%和62.1%,湿地进口和出口水体综合营养指数分别为62.2和52.3。结果表明,该净化湿地可以有效改善水质,为生态环境带来积极影响。

This paper studied the water purification function of wetland by analyzing the difference of water quality in import and export.Also,the comprehensive trophic level index(TLI)of import and export were evaluated by the comprehensive nutritional index method.The results showed that the wetland had good removal effect on COD、NH_(3)-N、TN、TP and Chl-a,and the removal rates were 45.0%、42.0%、37.7%、69.7%and 62.1%,respectively.The comprehensive trophic level index of import and export were 62.2 and 52.3,respectively.The wetland can effectively improve water quality and bring positive impact on ecological environment.