消毒副产物二氯乙酰胺的去除特性及对斑马鱼的毒性

发布时间：2018-01-14 14:21

本文关键词：消毒副产物二氯乙酰胺的去除特性及对斑马鱼的毒性　出处：《中国环境科学》2017年03期 　论文类型：期刊论文

【摘要】：针对含氮消毒副产物二氯乙酰胺在水厂中的去除情况及对斑马鱼的发育毒性及生物累积毒性进行研究.研究发现,骆马湖水源地水厂的出厂水中二氯乙酰胺浓度最高为1.72μg/L,远低于微山湖的2.6μg/L.相比常规处理工艺,深度处理工艺中的臭氧活性炭工艺对二氯乙酰胺生成势的去除率高达64%,去除效果较好.二氯乙酰胺在10μg/L浓度下对斑马鱼胚胎产生明显致畸作用,并且对胚胎中枢神经毒性作用早于对胚胎体内循环作用.二氯乙酰胺易于在斑马鱼的肝脏发生累积作用,并且累积作用大小与脂质含量成正相关,应当被严格控制.
[Abstract]:The removal of dichloroacetamide, a by-product containing nitrogen, in water plants, developmental toxicity and bioaccumulation toxicity of zebrafish were studied. The highest concentration of dichloroacetamide was 1.72 渭 g / L, which was much lower than that in Weishan Lake (2.6 渭 g / L). The removal rate of dichloroacetamide formation potential by ozone activated carbon process in advanced treatment process is as high as 64%. The results showed that dichloroacetamide had obvious teratogenic effect on zebrafish embryos at the concentration of 10 渭 g / L. The toxic effect of dichloroacetamide on the central nervous system of zebrafish was earlier than that on the circulation of embryo in vivo. Dichloroacetamide was easy to accumulate in the liver of zebrafish and the cumulative action was positively correlated with the content of lipid. It should be strictly controlled.
【作者单位】：东华理工大学水资源与环境工程学院;河海大学环境学院;南京师范大学环境学院;
【基金】：江苏省自然科学基金(BK2011201) 住房与城乡建设部科技计划项目(2012-K7-14) 科学技术部星火计划项目江苏省六大高峰人才项目(JNHB-005)
【分类号】：X171.5
【正文快照】： 为了充分应对水质标准对含碳消毒副产物限制,水厂开始采用氯胺代替氯气进行消毒,却导致水体中含氮消毒副产物增加.相比含碳消毒副产物,含氮消毒副产物有更高的基因及细胞毒性,因此受到广泛研究[1-3].在这类消毒副产物中,卤代乙酰胺是一种最近发现的含氮消毒副产物,相比三卤甲

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