城市污染景观水体植物净化修复方法研究

Study on Phytoremediation of Urban Polluted Landscape Water

为更好确定不同景观水体植物的净化能力,实现城市水体污染的良性治理,提出一种城市污染景观水体植物净化修复方法。分别对挺水、沉水、浮水三类植物的水体净化效果进行研究,实现城市景观水体植物的净化作用分析。在此基础上,从污水氮吸附、重金属离子富集、污水磷吸附三个角度着手,完成城市污染景观水体植物净化修复方法研究。取等重的挺水植物、沉水植物与浮水植物植株,将其分别置于浓度相同的污染水体之中,在相同实验时间内,分别检测不同实验组别含氮无机物、重金属离子、含磷无机物含量的变化情况,记录不同植物对污染水体的修复效果,并以此为依据,确定具备最强污染净化修复能力的城市景观水体植物类别。

In order to better determine the purification capacity of plants in different landscape waters and realize the benign treatment of urban water pollution,a plant purification and remediation method for urban polluted landscape waters was proposed.The water purification effects of three kinds of plants,i.e.upwelling,submerged and floating water,were studied to realize the analysis of the purification effects of urban landscape water plants.On this basis,the research on phytoremediation of urban polluted landscape water was completed from three perspectives of nitrogen adsorption,heavy metal ion enrichment and phosphorus adsorption.The Equal-Weight tapirs,submerged plants and phytoplankton plants were placed in polluted water with the same concentration.During the same experimental period,the contents of nitrogen-containing inorganic substances,heavy metal ions and phosphorus-containing inorganic substances in different experimental groups were detected,and the effects of different plants on the remediation of polluted water were recorded.On this basis,the strongest pollution purity was determined to determine the categories of plants in urban landscape waters with bioremediation capacity.