摘要
北方某地区水厂因原水水质存在总氮和硫酸盐等指标超标、出水高锰酸盐指数(CODMn)接近限值等问题,须增设深度处理工艺以提高供水水质。文中根据北方某水厂及其水源现状,对纳滤、臭氧活性炭两种深度处理工艺进行详细比选,最终确定臭氧-活性炭作为该水厂的深度处理工艺,该工艺技术成熟,投资与运行成本低,水耗较少。文中还详细介绍了工艺流程、设计特点、主要设计参数和处理效果。工程实践证明该工艺出水效果稳定,有机物去除效率高,出水水质达到《生活饮用水卫生标准》(GB 5749—2006)的要求。
Due to some raw water quality indices,such as total nitrogen and sulphate,exceeding the standard in north China,as well as permanganate index(CODMn)in effluent is nearly exceeding the standard in water treatment plant(WTP),advanced treatment process is considered necessary in water treatment plant′s conversion to improve the effluent water quality.Two advanced treatment processes of nanofiltration and ozone-activated carbon are compared in detail according to the present situation of the water source in north China.Ozone-activated carbon is determined as the advanced treatment process of the WTP,which is mature,lower investment,operation cost and less water consumption.Process flow,designed characteristics,designed parameters and treatment effect are also introduced.It is proved in engineering practice that effluent water quality is stable with high efficiency of organic matter removal,which can meet the Standards for Drinking Water Quality(GB 5749—2006).
作者
郭兆学
郭慧
GUO Zhaoxue;GUO Hui(Zibo Water Affairs Group Co.,Ltd.,Zibo255000,China)
出处
《净水技术》
CAS
2022年第4期141-148,共8页
Water Purification Technology
关键词
深度处理
臭氧
纳滤
生物活性炭
水厂
advanced treatment
ozone
nanofiltration(NF)
biological activated carbon(BAC)
water treatment plant(WTP)
