王江泾省界断面水质达标应急治理工程

Emergency Treatment Project of Water Quality Compliance of Wangjiangjing Section of Beijing-Hangzhou Grand Canal

为改善京杭大运河王江泾省界断面溶解氧不达标的情况,通过合理设置微纳米曝气增氧设备和微生物技术对河道水质进行治理,以期达到工程质量目标。结果表明:经过近6个月的调试和运行,王江泾断面水质明显改善,溶解氧已稳定达到3.0 mg/L及以上,氨氮也呈现逐渐下降的趋势,高锰酸盐指数则稳定维持在6.0 mg/L上下浮动。应用物理曝气技术和微生物修复技术应急治理断面水质效果显著,技术上可行,同时加强工程后期的运营维护和管理,可保持水质稳定。

Micro/nano bubble aerator and adding the microbial strains were taken to treat water from Wangjiangjing Section of Beijing-Hangzhou Grand Canal.After the commissioning and operation for six months, the river water was significantly improved, DO concentration was increased to 3.0 mg/L, CODmn concentration was increased to 6.0 mg/L, NH3-N concentration also showed a gradual decline. The aeration technology and microbial technology is technically feasible for improvement of the Wangjiangjing Section. In addition, the environmental regulatory enhancement and the regular operation management are helpful to restore the ecological environment of the river system.