水体富营养化及其防治

Water Eutrophication And Its Prevention、Control And Treatment

由于人类活动的影响,氮磷等营养物质大量排入水体并在其中不断积累,引起部分藻类和水生生物过度繁殖,造成水体的富营养化。本文对水体富营养化的形成机理、危害作了简要概述,着重从控制外源输入、降低内源负荷、去除营养物等三个方面,对现有的水体富营养化防治措施进行了概括和比较,并讨论了相应的发展方向,提出了综合防治策略。

As a result of human＇s actions and impacts on environment, a plenty of nitrogen and phosphorus disoharge into water and accumulate incessantly, and some algal and hydrobios multiply excessively. All of these lead to water eutrophication. This paper gives a brief account of the forming mechanism and harmfulness of water eutrophication; then emphasizes the existing preventions, controls and treatments related to control of extraneous sources, and decrease of endogenous load and removal of nutrient substances. Based on the summarization and compare, relevant direction is discussed, and comprehensive strategy is also put forward.