用地紧张小型老旧水厂不断水改扩建工程实践

Continuous Renovation and Expansion Project Practice of Small Old Waterworks with Land Tension

某水厂目前主要有两条生产线(2×10~4m^3/d),一条为"混凝+沉淀+过滤"工艺;另一条主体构筑物为澄清池,缺少"过滤"环节。水厂位于城区,用地狭小,提标改造工程(3×10~4m^3/d)充分利用现有构筑物及设施,新建2×10~4m^3/d的絮凝斜管沉淀池、3×10~4m^3/d的滤池及2 970. 24 m^3的清水池。工程实现了不断水施工,并集约化布置净水处理的核心设施,全面梳理和统一布置厂区内地下管道。目前改造工程已稳定运行一年多,所有出水水质指标均符合《生活饮用水卫生标准》(GB 5749—2006)以及《城市供水水质标准》(CJ/T 206—2005)。

There were two main production lines in a waterworks( 2 × 10~4m^3/d),one was"coagulation + precipitation + filtration"process,the other main structure was a clarification pool,which lacked the "filtering"stage. The water plant was located in the urban area and the land was small.Therefore, some existing structures and facilities were fully utilized in the upgrading project( 3 × 10~4m^3/d),a new 2 × 10~4m^3/d flocculation oblique tube sedimentation tank,3 × 10~4m^3/d filter tank and 2 970. 24 m^3 clear tank were built. The project realized continuous water construction and intensive arrangement of core facilities for water purification,and arranged underground pipelines in the plant area in an all-round way. At present,it had been running safely for more than a year. All the effluent quality indexes were in line with the Standards for Drinking Water Quality( GB 5749-2006)and the Water Quality Standards for Urban Water Supply( CJ/T 206-2005).