沉淀池排泥水中二氯乙酰胺前体物研究
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Research on precursor substances of dichloro-acetamide (DCAcAm)in sludge water
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    摘要:

    为了得出给水厂沉淀池排泥水中二氯乙酰胺(dichoro-acetamide,DCAcAm)主要前体物特性,研究排泥水中二氯乙酰胺生成势(DCAcAmFP)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;DCAcAmFP达到5~8μg/L。DCAcAmFP与不同组分DON之间存在一定的相关关系(R2=0.623),DCAcAmFP与ρ(DON)/ρ(DOC)值之间存在很强的线性相关性(R2=0.868),表明DCAcAm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。

    Abstract:

    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 5~8 μg /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.

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刘海燕,鲍娟,张绪婷,等.沉淀池排泥水中二氯乙酰胺前体物研究[J].水资源保护,2018,34(2):83-87.(LIU Haiyan, BAO Juan, ZHANG Xuting, et al. Research on precursor substances of dichloro-acetamide (DCAcAm)in sludge water[J]. Water Resources Protection,2018,34(2):83-87.(in Chinese))

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  • 收稿日期:2017-05-04
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  • 在线发布日期: 2018-03-27
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