不同流向活性炭滤池在实际生产运行中的对比分析  

Comparison of Activated Carbon Filter with Different Flow Directions in Actual Operation

作　　者：康雅 高红涛 沈磊 许登阁 王琰 巫京京 KANG Ya;GAO Hong-tao;SHEN Lei;XU Deng-ge;WANG Yan;WU Jing-jing(Zhengzhou Kairun Municipal Engineering Design Co.Ltd.,Zhengzhou 450007,China)

机构地区：[1]郑州楷润市政工程设计有限公司,河南郑州450007

出　　处：《中国给水排水》2023年第9期45-49,共5页China Water & Wastewater

摘　　要：B水厂和S水厂是郑州市首次采用臭氧/生物活性炭工艺的水厂,2013年对老厂进行升级改造,在原有常规处理工艺的基础上增加了深度处理工艺,分别采用下向流和上向流活性炭滤池。为比较二者对北方水体的适应性,对两水厂活性炭滤池的运行状况开展了长期运行监测。结果显示:运行7年后两水厂相比,下向流水厂活性炭的吸附性能指标衰减更严重,强度和粒径则无明显差异;出水水质在稳定运行后无明显差异,两种炭滤池对COD_(Mn)的去除效果相当;生物膜方面,下向流滤池挂膜较为迅速,但由于位于工艺段末端,存在生物泄漏风险;运行管理方面,由于上向流滤池无需定时强制反冲洗,更为节能。综合判断,针对原水水质稳定优良的地区,上向流活性炭滤池表现更优。B waterworks and S waterworks are the first waterworks to adopt ozone/biological activated carbon process in Zhengzhou City.In 2013,the original conventional treatment processes were upgraded by adding advanced treatment processes of downflow and upflow activated carbon filters,respectively.The long-term operation and monitoring of the activated carbon filters in the two waterworks were carried out to compare their adaptability to water bodies in northern China.After 7 years of operation,the adsorption index of the downflow activated carbon filter deteriorated more seriously,and there was no significant difference in strength and particle size of the activated carbon.The effluent quality was similar after stable operation,and the two activated carbon filters had similar removal efficiencies of COD_(Mn).In terms of biofilm,the attached growth of biofilm was faster in the downflow filter.However,there was a risk of biological leakage as it was located at the end of the process.In terms of management,the upflow filter needed no regular forced backwashing,indicating that it was more energy-saving.Therefore,the upflow activated carbon filter showed a better performance in areas with stable raw water quality.

关 键 词：生物活性炭滤池 下向流 上向流 净水效果 深度处理 

分 类 号：TU991[建筑科学—市政工程]