臭氧-生物活性炭工艺对消毒副产物前体物的去除特性

摘要

In terms of micro-polluted water of Huaihe River,the advanced treatment of O3-BAC process which mainly aimed to remove DBPs formation potential of DOM had been applied in a water treatment plant.The efficiency of the plant and the removal of trihalomethanes (THMs) and haloacetic acid(HAAs) disinfection byproducts formation potential were discussed.The results showed that removal rates of turbidity、CODMn 、DOC、UV254、NH4+-N by O3-BAC were 99.8％、82.8％ 、44.0％ 、95.4％ 、97.1％ respectively;total removal rates of THMFP、TCMFP、BDCMFP、CDBMFP、TBMFP were 48.7％、65.5％、38.1％、18％、-100.9％ respectively;total removal rates of HAAFP 、MCAAFP、MBAAFP 、DCAAFP 、TCAAFP、DBAAFP were 69.7％ 、-77.4％、11.4％ 、76.7％ 、83.3％、-108.1％ respectively.Combined process of pretreatment,conventional treatment and advanced treatment could effectively reduce pollutants and guarantee the safety of drinking water.%某水厂采用臭氧-生物活性炭(ozone-activated carbon,O3-BAC)深度处理工艺对淮河微污染原水进行处理,其中溶解性有机物是含碳消毒副产物的主要前体物.研究在某一工况条件,工艺对污染物以及消毒副产物生成势的去除特性.结果表明:O3-BAC对浊度、CODMn、DOC、UV254、氨氮的去除率分别为99.8％、82.8％、44.0％、95.4％、97.1％;O3-BAC对总三卤甲烷生成势(THMFP)以及三氯甲烷生成势(TCMFP)、一溴二氯甲烷生成势(BDCMFP)、一氯二溴甲烷生成势(CDBMFP)、三溴甲烷生成势(TBMFP)的去除率分别是48.7％、65.5％、38.1％、18％、-100.9％;对总卤乙酸生成势(HAAFP)以及一氯乙酸生成势(MCAAFP)、一溴乙酸生成势(MBAAFP)、二氯乙酸生成势(DCAAFP)、三氯乙酸生成势(TCAAFP)、二溴乙酸生成势(DBAAFP)的去除率分别是69.7％、-77.4％、11.4％、76.7％、83.3％、-108.1％.采用预处理、常规处理工艺和深度处理组合工艺可以有效去除水中的污染物,保障出厂水水质安全.