沉淀池排泥水中二氯乙酰胺前体物研究  

Research on precursor substances of dichloro-acetamide(DCAcAm) in sludge water

作　　者：刘海燕 鲍娟 张绪婷 李士其 侯兵伟 林涛[3] LIU Haiyan;BAO Juan;ZHANG Xuting;LI Shiqi;HOU Bingwei;LIN Tao(Nanjing Water Group Co.,Ltd.,Nanjing,210002,China;China Design Group Co.L td.,Nanjing,210014,China;College of Environment y Hohai University,Nanjing,210098,China)

机构地区：[1]南京水务集团有限公司,江苏南京210002 [2]中设设计集团股份有限公司,江苏南京210014 [3]河海大学环境学院,江苏南京210098

出　　处：《水资源保护》2018年第2期83-87,共5页Water Resources Protection

基　　金：国家自然科学基金(51438006)

摘　　要：为了得出给水厂沉淀池排泥水中二氯乙酰胺(dichoro-acetamide,DCAc Am)主要前体物特性,研究排泥水中二氯乙酰胺生成势(DCAc Am FP)与不同组分特征ρ(DON)、ρ(DON)/ρ(DOC)值之间的关系。结果表明:沉淀池排泥水的ρ(DON)值为0.3~0.6 mg/L高于原水中的值(0.2~0.4 mg/L),且亲水性小分子量占大部分;DCAc Am FP达到5~8μg/L。DCAc Am FP与不同组分DON之间存在一定的相关关系(R2=0.623),DCAc Am FP与ρ(DON)/ρ(DOC)值之间存在很强的线性相关性(R2=0.868),表明DCAc Am的主要前体物为氨基酸、蛋白质类亲水性小分量含氮有机物。In order to obtain the characteristics of main precursor material of dichloro-acetamide in sludge water.We explored the relationship between the ratio of dichloro-acetamide(DCAcAmFP)and DON and DON/DOC in this study.Results show that the DON value in sludge water(0.3~0.6 mg/L)is higher than the corresponding value in raw water(0.2~0.4 mg/L),and the hydrophilic small molecular weight accounts for the majority,DcAcAmFP reaches 5~8μg/L.DCAcAmFP has a certain correlation with DON(R2=0.623).There is a strong linear correlation between the ratio of DCAcAmFP and DON/DOC(R2=0.868),which means the main precursor of dichloro-acetamide is amino acid and protein hydrophilic small component nitrogen-containing organic matter.

关 键 词：含氮有机物 沉淀池排泥水 二氯乙酰胺 前体物 

分 类 号：X703[环境科学与工程—环境工程]