超负荷运行普通快滤池的升级改造实践  

Upgrading and Reconstruction Practice of Conventional Fast Filter under Overload Operation

作　　者：魏琪 刘保超 WEI Qi;LIU Baochao(Lianyungang Water Supply Co.,Ltd.,Lianyungang222200,China)

机构地区：[1]连云港市自来水有限责任公司,江苏连云港222200

出　　处：《净水技术》2022年第7期184-190,共7页Water Purification Technology

基　　金：市科技计划(水发展)项目:连云港市城市供水水质安全保障技术研究———原水-水处理-管网全流程水质安全性评价(SF2150)。

摘　　要：为提高滤池出水水质和处理能力,提高自动化运行水平,苏北某水厂对普通快滤池进行了改造,将单水冲改为气水反冲洗,配水系统由滤砖更换为长柄滤头,并将滤料、承托层、排水槽进行更换。在超负荷运行的前提下,文中针对滤池改造前存在问题、改造内容和改造效果进行了分析。结果表明,改造后出水水质显著改善,滤后水浑浊度从0.70~0.90 NTU降至0.20 NTU,有效地缓解了后续深度处理系统的运行压力。文中还详述了改造过程中遇到的一些问题和解决方案,可为类似项目提供借鉴。In order to improve the outflow quality and treatment capacity of the filter,and improve the automatic operation level,the ordinary fast filter of a water treatment plant(WTP)in Northern Jiangsu is reconstructed,which changed the single water flushing to gas-water backwashing,and replaced the filter brick water distribution system with long handle filter head,and replaced the filter material,support layer and drainage tank.Under the premise of overload operation,this paper analyzes the existing problems before the transformation of the filter,reconstruction contents and effects.The results show that after the reconstruction,the effluent quality is significantly improved,and the turbidity of filtered water is reduced from 0.70~0.90 NTU to 0.20 NTU,which effectively alleviates the treatment pressure of the subsequent advanced treatment system.This paper also describes in detail some problems and solutions encountered in the reconstruction process,so as to provide reference for similar projects.

关 键 词：普通快滤池 气水反冲洗改造 超负荷运行 双层滤料 浑浊度 

分 类 号：TU991[建筑科学—市政工程]