CAJ | 학술논문

为应对可能出现的突发性铜+镉+铊复合型污染事件，模拟自来水厂常规工艺以及强化工艺对含有铜（Cu）、镉（Cd）和铊（Tl）的原水进行处理。结果表明，常规工艺对含Cu、Cd和Tl复合污染的原水去除效果有限；Cu的去除较Cd和Tl容易；投加高铁酸钾预处理对Cd和Tl有明显去除效果；Cu、Cd和Tl的去除率随pH的升高而提高。单因素实验和正交试验确定最佳去除方案为高铁酸钾投加1.25mg/L，pH为9.50，PAFC投加2.0mg/L，粉末活性炭投加20mg/L，在此条件下处理含铜4.84mg/L、镉14.10ug/L、铊0.325ug/L的原水，出水剩余铜、镉、铊的浓度分别低于1mg/L、0.005mg/L、0.1ug/L，都达到国家饮用水标准。
위응대가능출현적돌발성동+력+사복합형오염사건，모의자래수엄상규공예이급강화공예대함유동（Cu）、력（Cd）화사（Tl）적원수진행처리。결과표명，상규공예대함Cu、Cd화Tl복합오염적원수거제효과유한；Cu적거제교Cd화Tl용역；투가고철산갑예처리대Cd화Tl유명현거제효과；Cu、Cd화Tl적거제솔수pH적승고이제고。단인소실험화정교시험학정최가거제방안위고철산갑투가1.25mg/L，pH위9.50，PAFC투가2.0mg/L，분말활성탄투가20mg/L，재차조건하처리함동4.84mg/L、력14.10ug/L、사0.325ug/L적원수，출수잉여동、력、사적농도분별저우1mg/L、0.005mg/L、0.1ug/L，도체도국가음용수표준。
To respond to accidental copper+cadmium+thallium compound pollution incidents,Simulated conventional water treatment processes and enhanced coagulation process were used to study the removal effect of copper+cadmium+thalium compound polution raw water.The results showed that the removal efficiency of copper/cadmium and thalium by conventional coagulation-sedimentation was poor;copper is easier to be removed than cadmium and thalium;The removal rates of copper/cadmium and thalium increase with pH value rising.Single factor analysis and orthogonal test determine the optimal dosage of K2FeO4,power activated carbon and poly aluminum ferric chloride(PAFC)were 1.25 mg/L,20.0mg/L and 1.50mg/L,the optimal pH was adjusted to 9.50.Under these conditions,the raw water with4.84 mg/L Cu,14.10ug/L Cd and 0.325μg/L Tl could be treated up to the national drinking water standards, with the residual concentration of Cu,Cd and Tl were lower than 1 mg/L,0.005 mg/L and 0.1ug/L.