【摘要】 为确定复合变速生物滤池的最佳运行工况,进行了处理污水厂二级出水的中试,滤池采用酶促填料和组合填料,考察了四种流量水平下对有机物的去除效果。结果表明:滤池出水COD<20mg/L、浊度<1NTU、BOD5<8mg/L,可满足《城市杂用水水质标准》(GB/T18920—2002);并确定了复合变速生物滤池的各种运行参数。更多还原

【Abstract】 Pilot-scale test was made on treatment of secondary effluent from a wastewater treatment plant by using combined velocity-changeable bio-filter （CVF） for determination of optimum operating conditions.Enzyme-catalyzed packing and composite packing were adopted,and the effects of organic matter removal under four different load conditions were investigated.The test result shows that COD,turbidity and BOD₅ in effluent are below 20 mg/L,1 NTU and 8 mg/L respectively,which can meet the Water Quality Standard for Urban Miscellaneous Water Consumption （GB/T 18920—2002）.The various operation parameters of CVF were also determined.更多还原