黑臭水体治理中多技术综合运用案例分析

Analysis on Comprehensive Application of Multiple Technologies in Treatment of Black and Odorous Water Body

摘要:

通过对安徽省池州市赵圩黑臭水体进行分析,提出多技术综合运用的技术方案,采用“外源减排、内源清淤、水质净化、生态恢复”的主体技术路线,系统运用控源截污、海绵化改造、底泥清淤、增强水动力、生态修复等技术措施治理赵圩黑臭水体,通过定量计算验证整治后可基本消除外源污染物对水质的影响,工程投入运行后赵圩已基本消除水体黑臭,水生态恢复,实现了长治久清的目标。

Abstract:

Taking the Shanghai Zhangjing River Pump and Sluice Project as an example, the fine temperature control and crack prevention technology of mass concrete of pump and sluice project in the construction stage is discussed from the aspects of material properties, water cooling and thermal insulation measures, and temperature monitoring. The material thermodynamic parameters and surface convection coefficient required for simulation analysis are obtained from the laboratory test and on-site mass concrete test, and then are used for feedback analysis of on-site concrete temperature field. Finally, the effects of water flow and cooling water pipe specification on the concrete temperature field are compared and analyzed. The results show that the material and diameter of pipe have a great impact on the maximum temperature and temperature drop rate of concrete. It is suggested that more than 40mm diameter steel pipe and more than 4m3/h cooling water flow are used in the early stage.