摘要
随着水源污染的不断加剧以及饮用水标准的日益提高,臭氧-生物活性炭深度处理工艺在国内外得到广泛应用。本研究选取江苏省以长江、太湖、淮河和沂沭泗水系为水源的地表水厂,分析其采用臭氧生物活性炭工艺前后长达一年的水质数据,发现原水受水厂在进行深度处理改造后,出厂水浑浊度月平均值均有明显的降低,仅为0.1-0.4 NTU,对浑浊度的最大去除率可达98.7%;出厂水CODMn月平均值也有明显的降低,为1.0~2.7 mg/L,对COD去除率最大提升27.2%;不同水系水源出厂水中三卤甲烷含量降低了19.4%~78.7%。运行结果分析表明:采用臭氧-生物活性炭处理工艺较常规水处理工艺能够有效改善出厂水水质,具有较大的推广应用价值。
With the increasing pollution of water sources and the increasing improvement of drinking water standards,the ozone-biological activated carbon advanced treatment process has been widely applied in domestic and abroad.Four water plant,whose raw water is from that Yangtze river,taihu lake,huaihe and Yishusi water sources were resereached after the ozone-biological activated carbon advanced treatment process put into operation.Result showed that after the advanced treatment,turbidity were significantly reduced to 0.1~0.4 NTU average,maximum removal rate of turbidity reached 98.7%.CODMn,of four water plants were reduced to 1.0~2.7mg/L,and the removal rate was maximum increased by 27.2%.The content of trihalomethanes were reduced by 19.4%-78.7%.In conclusion,ozone-biological activated carbon advanced treatment process can improve the quality of the water effectively compared to the conventional water treatment process.
作者
徐春蕾
XU Chunlei(Security Support Center for Urban Water Supply of Jiangsu Province,Nanjing 210036,China)
出处
《净水技术》
CAS
2019年第A01期65-67,86,共4页
Water Purification Technology
基金
国家重大科技专项独立课题(2017ZX07201005)
关键词
深度处理
臭氧-生物活性炭
消毒副产物
饮用水
advanced treatment
ozone-biological activated carbon
disinfection by-product
drinking water
