西咸新区沣西应急给水厂除铁除锰工艺设计  

Design of Iron and Manganese Removal Process in Fengxi Emergency Water Supply Plant in Xixian New District

作　　者：王俊 黄宁俊[2] WANG Jun;HUANG Ning-jun(Xi’an Water Group Planning and Design Research Institute Co.Ltd.,Xi’an 710082,China;Xi’an Municipal Engineering Design&Research Institute Co.Ltd.,Xi’an 710082,China)

机构地区：[1]西安水务<集团>规划设计研究院有限公司,陕西西安710082 [2]西安市政设计研究院有限公司,陕西西安710082

出　　处：《中国给水排水》2020年第22期121-124,共4页China Water & Wastewater

摘　　要：为解决陕西省西咸新区沣西新城区域内用水量与现有供水能力之间的矛盾,并建立良好的区域化供水体系,建设了西咸新区沣西应急给水厂,工程规模为4.2×10^4m^3/d。针对原水中铁、锰离子微量超标问题,采用高锰酸钾化学辅助氧化+跌水曝气氧化+复合锰砂过滤的处理工艺,该工艺兼具化学氧化和接触氧化除铁、锰工艺的特点。此外,厂区内采用了海绵城市LID设计,实现了雨水的回收利用。该工程总投资约为9433万元,单位经营成本为1.36元/m^3。实际运行表明,系统运行效果良好,出水水质优于国家标准,具有良好的社会效益和经济效益。In order to solve the contradiction between the water consumption and the existing water supply capacity in Fengxi New Town,Xixian New District,Shaanxi Province,and to establish a good regional water supply system,the Fengxi emergency water supply plant in Xixian New District was built.The treatment capacity of the project was 42000 m^3/d.In view of the excessive content of iron and manganese ions in raw water,the treatment process of chemical assisted oxidation with potassium permanganate+drop aeration oxidation+composite manganese sand filtration was adopted.This process has the characteristics of chemical oxidation and contact oxidation to remove iron and manganese.In addition,the LID design of sponge city was adopted in the plant to realize the recycling of rainwater.The total investment of the project was about 94.33 million yuan,and the operating cost was 1.36 yuan/m^3.The actual operation showed that the operation performance of the system was good,the effluent quality was better than the national standard,and the project had good social and economic benefits.

关 键 词：应急给水厂 跌水曝气 除铁除锰 

分 类 号：TU991[建筑科学—市政工程]