东华大学学报(英文版)2008,Vol.25Issue(4):361-365,5.
Inactivation of Chironomid Larvae with Chlorine Dioxide and Chlorine
Inactivation of Chironomid Larvae with Chlorine Dioxide and Chlorine
摘要
Abstract
Chironomid larvae propagate prolifically in eutrophic water body and they cannot be exterminated by conventional disinfection process.The inactivation effects of chlorine and chlorine dioxide on Chironomid larvae were investigated and some boundary values in practice were determined under conditions of various oxidant dosage,organic precursor concentration and pH value.In addition,removal effect of differmt pre-oxidation combined with coagulation process on Chironomid larvae in law water was evaluated.It was found that chlorine dioxide possessed better inactivation effect than chlorine.Complete inactivation of Chironomid larvae in raw water was resulted by 1.5mg/L of chlorine dioxide with 30min of contact time. Additionally,the ocgallic precursor concentration,pH value had little influence on the inactivation effect.The coagulation jar test showed that Chironomid larvae in the raw water could be completely ronxwed by chlorine dioxide pre-oxidation in combination with the omgulation process at chlorine dioxide dosage of 0.8 mg/L.关键词
chironomid larvae/water treatment/chlorine dioxide/inactivationKey words
chironomid larvae/water treatment/chlorine dioxide/inactivation分类
建筑与水利引用本文复制引用
SUN Xin-bin,CUI Fu-yi..Inactivation of Chironomid Larvae with Chlorine Dioxide and Chlorine[J].东华大学学报(英文版),2008,25(4):361-365,5.基金项目
The National Natural Science Foundation of China(NO.503780262) (NO.503780262)
Supporting Certificate of China Postdoctoral Science Foundation(No.20070420882)and Heilongjiang Postdoctorial Financial Assistance(No.LBH-Z06115). (No.20070420882)