江阴城区黑臭水体成因分析及治理建议

Cause analysis of stinky black water body in Jiangyin City and treatment suggestions

为了更好实施城市水体环境治理工程,按照江阴市水环境治理工程设计的要求,对江阴城区62条(个)河流(湖泊)开展了水质现状调查,并对其中6条河道开展沉积物现状调查,完成了现状资料收集及水环境质量评价工作。以《城市黑臭水体整治工作指南》为依据,调查发现约22.6%的监测断面为"黑臭"。造成江阴城区部分水体黑臭的原因包括:水体周围生活、生产污水直接入河;底泥沉积物持续释放污染物;水体流动缓慢,自净能力严重下降。针对黑臭水体产生原因提出了改进建议措施,以改善水体质量。

In order to better implement the urban water environment treatment project,62 rivers(lakes)in Jiangyin City were investigated for water quality status,in which the current sediment situation of 6 rivers was investigated,and the data collection and water environment quality evaluation were completed.Based on the guideline of urban black odor water treatment,22.6%of the monitoring sections reached the level of"stinky black".The main causes for some of stinky black body in Jiangyin City are as follows:the domestic sewage and garbage from the residents nearby enters into the river directly;the sediment continuously releases pollutants;the water body has poor fluidity and declines in self-purification ability.Based on the analysis of the cause of the stinky black water body,the treatment suggestions are put forward in order to improve the water quality.