万州申明坝污水处理厂事故排放的影响分析  

Analysis of impacts of accidental discharge from Shenmingba Sewage Treatment Plant in Wanzhou City

作　　者：张伟进[1,2] 邓春光[2] 任虹[2] 李富宇[1] 肖艳红[3] 何羽[1] 

机构地区：[1]重庆大学城市建设与环境工程学院,重庆400045 [2]重庆市环境科学研究院,重庆400020 [3]西南大学化学化工学院,重庆400715

出　　处：《水资源保护》2012年第2期17-19,24,共4页Water Resources Protection

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07104-006);三峡水库主要污染物总量控制与综合防治技术集成研究

摘　　要：由于自然灾害和污水处理系统发生故障等原因,万州申明坝污水处理厂存在一定的事故排放可能性。通过对万州申明坝污水处理厂的厂址、设施进行调查,对其受纳水体苎溪河和入长江口的水质、水文进行实地监测,分析其事故排放的风险性。分别选用一维模型和二维模型对万州申明坝污水处理厂事故排放对苎溪河和长江水质的影响进行模拟分析,并引用涪陵污水处理厂排放口对长江影响的实测数据来验证所选模型,结果证实了模型的可行性:在长江175m水位,万州申明坝污水处理厂事故排放时污染带的长度是正常排放的20倍,宽度是正常排放的4倍;在长江145m水位,万州申明坝污水处理厂事故排放时污染带的长度是正常排放的3倍,宽度是正常排放的2倍。Because of the natural disasters and sewage treatment system failure,there is a possibility of accidental discharge from Shenmingba Sewage Treatment Plant in Wanzhou City.Through investigation into the facilities and location of Shenmingba Sewage Treatment Plant and monitoring of the quality and hydrology of the receiving water in the Zhuxi River and the entrance to the Yangtze River,the risk of accidental discharge from the plant was analyzed.A one-dimensional model and a two-dimensional model were used to simulate the impacts of the accidental discharge from Shenmingba Sewage Treatment Plant on the water quality of the Zhuxi River and Yangtze River,and observed data on the impacts of the sewage outfall of Fuling Sewage Treatment Plant on the Yangtze River were used for model validation.The results show that the models can be used in practice.When the accidental discharge occurred,the length and width of the pollution zone were respectively 20 times and four times those of the pollution zone during regular discharge at a water level of 175 m in the Yangtze River,and three times and two times those of the pollution zone during regular discharge at a water level of 145 m.

关 键 词：污水处理厂 事故排放 污染带 一维模型 二维模型 

分 类 号：X505[环境科学与工程—环境工程]