前置上向流臭氧生物活性炭深度处理水厂浮游动物监测与控制  

Monitoring and controling of zooplankton in water treatment plant with up-flow ozone biological activated carbon process

作　　者：黄慧 宋欣 马越 孙显慧 HUANG Hui;SONG Xin;MA Yue;SUN Xianhui(Shenzhen Shemhui Longhua Water Co.,Ltd.,Shenzhen 518100,China)

机构地区：[1]深圳市深水龙华水务有限公司,深圳518100

出　　处：《给水排水》2022年第6期20-25,共6页Water & Wastewater Engineering

摘　　要：对水厂全流程出水中浮游动物进行分类监测,浮游动物平均检出值从高到低依次为原水、沉后水、炭后水、滤后水、出厂水。原水浮游动物总量202~4456个/100 L,活体占比1%~4%。混凝沉淀为浮游动物去除的主要工艺段,沉后水浮游动物总量1.2~15.9个/100 L,去除率92.1%~99.9%。上向流活性炭滤池出水浮游动物0.15~3.87个/100 L,检测值和检出率均低于沉淀池出水。南方地区选用的上向流臭氧生物活性炭滤池,在微型动物孳生控制方面较下向流生物活性炭滤池更具优势。滤池过滤可进一步降低出水中浮游动物数量,但仍存在浮游动物穿透滤池的风险。可通过提前预警,采取强化混凝沉淀、滤前加氯及滤后加拦截网的方式进行防控。The zooplankton in the effluent of the whole processes of the water treatment plant was classified and monitored.The detection values of zooplankton from high to low were raw water,sunk water,carbonized water,filtered water and factory water.The zooplankton in raw water was 202~4456/100 L,which the living proportion was 1%~4%.Coagulation and sedimentation is the main process of zooplankton removal.The total zooplankton was 1.2~15.9/100 L and the removal rate was 92.1%~99.9%.The number of zooplankton was 0.15~3.87/100 L in the effluent from up-flow activated carbon filter,which lower than the sedimentation tank effluent.The up-flow Biological Activated Carbon filter has more advantages than the down-flow Biological Activated Carbon filter in micro-animals control in the south of China.The amount of zooplankton in the effluent can be further reduced by the filter,but there is still a risk of zooplankton penetrating the filter bed.It can be prevented and controlled by early warning,strengthening coagulation and sedimentation,adding chlorine before filtration and adding intercepting net after filtration.

关 键 词：上向流 臭氧生物活性炭 浮游动物 监测控制 

分 类 号：TU991[建筑科学—市政工程]