沉水植物对水体净化效果的研究

Study on the Purification Effect of Submerged Plants on Water Bodies

以贵州省常见的沉水植物狐尾藻、苦草、金鱼藻和黑藻作为研究对象,选取某受污染的水库,取用其底泥和水库水,开展水质净化实验,实验组分别设置4种植物,对照组为无植物空白,针对其单一植物对水中COD、TP、TN、NH3-N和浊度去除率的影响进行研究,研究不同植物种类对实验污水净化效果的影响。结果表明:不同植物对实验污水中污染物的净化效果存在差异,因此,水生态修复工程中,选择合适的沉水植物种类对提高水体净化效果有很大的帮助。

Taking common submerged plants such as foxtail algae,bitter grass,goldfish algae,and black algae in Guizhou Province as research objects,a polluted reservoir was selected and its sediment and reservoir water were used for water quality purification experiments.The experimental group was divided into four types of plants,while the control group was a plantless blank.The study aimed to investigate the effects of a single plant on the removal rate of COD,TP,TN,NH,-N,and turbidity in water,and to investigate the effects of different plant species on the purification efficiency of experimental wastewater.The results indicate that there are differences in the purification effects of different plants on pollutants in experimental wastewater.Therefore,selecting appropriate types of submerged plants in aquatic ecological restoration projects is of great help in improving the purification effect of water bodies.