水生植物对富营养水体氮和磷及重金属的净化

Purification Effect of Aquatic Plants for Nitrogen,Phosphorus and Heavy Metals in Eutrophic Waters

水生植物对氮、磷及重金属有生态修复功能。文章通过硝化、反硝化、氨化及生物量同化降解水体中的氮、磷;螯合作用分泌植物螯合肽或有机酸发生螯合反应,去除重金属,达到净化水体的效应,不会造成二次污染,生态效应显著。

Aquatic plants have ecological restoration function to nitrogen,phosphorus and heavy metals.The article expounds the way of nitrification,denitrification,ammonia assimilation and biomass degradation of nitrogen and phosphorus in eutrophic waters,as well as the removal of heavy metals by chelation secretion of phytochelatins or organic acid chelating reaction,which aimed to achieve the ecological effect of purifying water without secondary pollution.