南水北调源头城市黑臭水体治理截污工程案例
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摘要
河南省淅川县位于丹江口水库上游,县城内的黑臭水体治理对南水北调水源地水质安全和生态环境保护有举足轻重的作用。对该县城河道水体黑臭原因进行了分析,针对老城区现状排水体制提出了改进的污水截流系统,对沿河居民分散排污口和合流制排污口提出了不同的截污方案,并对沿河截污干管的布置形式、管材选择及其基础做法、检查井的选用等设计和实施过程中的技术难题进行了分析,提出了针对性的解决方案。该工程措施实施一年后,河道黑臭现象基本消除。
Xichuan County of Henan Province is located in the upper reaches of Danjiangkou Reservoir. So the treatment of black and odorous water plays an important role in water quality safety and environmental protection. Through the analysis of the causes of black smelly river,according to the situation of old city drainage system,wastewater interception system improvement was proposed,and different wastewater interception schemes were put forward for the dispersed wastewater outfall and combined wastewater outfall along the river. The wastewater interception pipe layout along the river,material selection and the approach of base construction,inspection well selection and the problems in design and implementation process have been analyzed. After one year of operation,the phenomenon of black and odorous water has almost disappeared.
Xichuan County of Henan Province is located in the upper reaches of Danjiangkou Reservoir. So the treatment of black and odorous water plays an important role in water quality safety and environmental protection. Through the analysis of the causes of black smelly river,according to the situation of old city drainage system,wastewater interception system improvement was proposed,and different wastewater interception schemes were put forward for the dispersed wastewater outfall and combined wastewater outfall along the river. The wastewater interception pipe layout along the river,material selection and the approach of base construction,inspection well selection and the problems in design and implementation process have been analyzed. After one year of operation,the phenomenon of black and odorous water has almost disappeared.
引文
[1]邹伟国.城市黑臭水体控源截污技术探讨[J].给水排水,2016,42(6):56-58.
[2]住房和城乡建设部.城市黑臭水体整治——排水口、管道及检查井治理技术指南(试行)[M].北京:中国建筑工业出版社,2016.
[2]住房和城乡建设部.城市黑臭水体整治——排水口、管道及检查井治理技术指南(试行)[M].北京:中国建筑工业出版社,2016.