引配水对杭州中东河水质改善研究  

Study on Improving Water Environment of Zhongdong River by Water Diversion and Distribution in Hangzhou

作　　者：王艳[1] 张晓红[2] 杨磊[1] 陈启石[1] 张洋 

机构地区：[1]中原工学院能源与环境学院,河南郑州450007 [2]杭州市市区河道监管中心,浙江杭州310008 [3]浙江省自然博物馆,浙江杭州310008

出　　处：《环境科学与技术》2016年第3期136-142,共7页Environmental Science & Technology

基　　金：中原工学院青年骨干教师资助计划;河南省基础与前沿技术研究计划项目(132300410473)

摘　　要：杭州市主城区中东河随城市经济发展污染严重,水体呈现出劣Ⅴ类水质。研究通过对中东河引配水前后连续7年的定点水质监测,以期掌握引配水对中东河水质改善效果。结果显示,引配水对中东河水质有明显改善,溶解氧浓度平均升高1-2倍,氨氮及总磷浓度分别下降60%及65%;在不考虑内外源性污染前提下,引配水量增大（日常配水量2倍）水体溶解氧增加13%,氨氮、总磷及高锰酸钾指数分别降低8%、3%及14%。河道沿岸偷排雨污合流及河道底泥分别是影响引配水持续改善水质的外源及内源因素,降雨期间,河道水体溶解氧急剧下降约95%,氨氮及总磷浓度则可分别升高90%、87%。研究结果可为持续改善中东河水质及河道管理部门制定相关法规政策提供理论依据。As the city economy developed,Zhongdong River in Hangzhou was seriously polluted with the worst water quality. In order to understand the effect of water diversion and distribution from Qiantang River on the water quality of Zhongdong River,7 years continuous monitoring was conducted,which were at the fixed stations before and after the water diversion and distribution from Qiantang River. Results showed that water quality of Zhongdong River project was significantly improved after the water diversion and distribution. After the project,dissolved oxygen concentration of the river water was one to two times higher than before and ammonia nitrogen and total phosphorus was decreased by 60% and 65%,respectively. When increased the amount of water,dissolved oxygen concentration of the river water elevated by 13%,ammonia nitrogen,total phosphorus and potassium permanganate index decreased by 8%,3% and 14%,respectively. The reason for the river water pollution was contributed to the combined sewer system and riverway sludge,especially during the rainfall,the dissolved oxygen concentration of Zhongdong River sharply declined by 95%,while the ammonia nitrogen and total phosphorus increased by 90% and 87%,respectively. The result of this study was to provide the theoretical fundamental for continuously improving the water quality of Zhongdong River.

关 键 词：溶解氧 氨氮 总磷 高锰酸钾指数 降雨 内外源污染 

分 类 号：X522[环境科学与工程—环境工程]