摘要
大量未经处理的污水排入水体时 ,会导致地面水体严重污染。受污染水体的水质恢复方法有物理法、化学法和生物法 ,它们能控制水体外源性和内源性污染物的排入量、人工强化水体自身的净化能力 ,以降低水体中污染物的浓度、提高溶解氧浓度 。
The surface water will be polluted if much untreated wastewater is received The methods to restore the water quality include physical, chemical and biological ones The amount of contaminants from internal and external pollution sources can be controlled and self-purification can be enhanced with these methods Therefore, the contaminants in surface water will be reduced, the DO will be raised and the diversity of organisms will be restored after the methods are applied reasonably
出处
《环境污染治理技术与设备》
CSCD
北大核心
2003年第2期69-72,共4页
Techniques and Equipment for Environmental Pollution Control
