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2010年开始,江阴污水处理厂尾水在兴化湾内深水排放。本文收集、分析了2009-2015年尾水排放口附近海域水质监测数据,结果表明该海域水质总体符合三类海水标准。2009-2013年间各指标基本保持平稳,但2013-2015年间COD、石油类、无机氮等指标均有上升趋势,且2015年水体检出苯胺类污染物。这可能与海域污染负荷增加及特殊污染物的处理效果不佳等有关。建议全面推广企业清洁生产并改进江阴污水厂处理工艺,减少污染物的排放入海。同时加强区域海洋环境跟踪监测,及时了解水质变化状况。
Beginning in 2010, Jiangyin Sewage Treatment Plant tail water discharge in deep water in Xinghua Bay. This paper collects and analyzes the monitoring data of water quality near the tailrace drainage from 2009 to 2015. The results show that the water quality of the sea generally meets the three types of seawater standards. The indicators for 2009-2013 remained basically stable. However, the indicators such as COD, petroleum, inorganic nitrogen and so on increased between 2013 and 2015, and the aniline pollutants were detected in 2015. This may be related to the increased pollution load in the sea and the poor treatment effect of special pollutants. It is recommended to fully promote cleaner production and improve the Jiangyin Wastewater Treatment Plant process to reduce pollutant emissions into the sea. At the same time, we will strengthen the tracking and monitoring of the marine environment in the region and keep abreast of changes in water quality.