高标准强化常规处理工艺在桂林市某水厂二期工程中的应用  

Application of Higher Standard Enhanced Conventional Treatment Process in the Second Phase Project of a WTP in Guilin City

作　　者：司徒菲 胡新立 黄智 宋子明 王浩然 SITU Fei;HU Xinli;HUANG Zhi;SONG Ziming;WANG Haoran(Central and Southern China Municipal Engineering Design&Research Institute Co.,Ltd.,Wuhan430010,China;Guilin Water Supply Co.,Ltd.,Guilin541002,China)

机构地区：[1]中国市政工程中南设计研究总院有限公司,湖北武汉430010 [2]桂林市自来水有限公司,广西桂林541002

出　　处：《净水技术》2022年第6期149-155,共7页Water Purification Technology

摘　　要：桂林市某水厂二期工程设计总规模为40万m^(3)/d,近期规模为20万m^(3)/d,采用江河水和水库水双水源。设计近期出厂水质达到《生活饮用水卫生标准》(GB 5749—2006)的要求,其中浑浊度要求在0.50 NTU以下,远期出厂水质达到《饮用净水水质标准》(CJ 94—2005)要求。为灵活应对两个不同水源浑浊度变化大、高藻、可能出现微污染的原水水质特点,该厂采用了“预沉池+高效沉淀池+高速滤池”的强化常规处理工艺。同时,厂区预留预处理和深度处理用地,以满足将来更高品质供水要求。实际运行一年结果标明,强化常规处理工艺运行稳定,出厂水浑浊度控制在0.15 NTU以下,实现了优质供水,提升了供水安全可靠性。The second phase project of a water treatment plant(WTP)in Guilin City has a total design scale of 400000 m3/d,and the recent scale is 200000 m3/d.Two water sources of river and reservoir are adopted.The recent outflow quality meets Standards for Drinking Water Quality(GB 5749—2006),and turbidity is required to be below 0.50 NTU,the long term outflow quality meets Water Quality Standards for Fine Drinking Water(CJ 94—2005).In order to flexibly deal with the raw water quality characteristics of two different water sources with large turbidity variation,high algae content and possible micro pollution,the plant adopts the enhanced conventional treatment process of"pre-sedimentation tank+high-efficiency sedimentation tank+high-speed filter".And land for pretreatment and advanced treatment are reserved in the plant area to meet the requirements of higher effluent quality in the future.Results of one year operation show that enhanced conventional treatment operates stably,turbidity is controlled below 0.15 NTU,which realize higher quality water supply and improve the safety and reliability of water supply.

关 键 词：双水源 浑浊度 高藻 强化常规处理 高效沉淀池 高速滤池 优质供水 

分 类 号：TU991[建筑科学—市政工程]