含油污泥及其污染水体中多环芳烃及其急性生物毒性测定

发布时间：2018-06-11 21:10

本文选题：含油污泥 + 多环芳烃　；参考：《环境工程学报》2017年05期

【摘要】：为了更好地控制含油污泥的环境污染,通过实验分析了五种不同来源的含油污泥中多环芳烃(PAHs)的含量、来源以及总毒性当量浓度(TEQ),测定了不同有机溶剂浸提液的急性生物毒性,并对油泥污染水样的PAHs和急性生物毒性进行了分析。研究发现,不同含油污泥中PAHs含量为496.10~4 233.25μg·g~(-1),PAHs总毒性当量(TEQ)为8.41~231.56μg·g~(-1),炼化厂含油污泥中的PAHs主要来源于石油及其精炼产品的热转化,其他含油污泥中的PAHs主要来源于原油本身。正己烷是3种受试有机溶剂中最适合测量含油污泥急性生物毒性的溶剂。被污染水样中PAHs含量为9.68~385.16 ng·mL~(-1),除被清罐油泥污染的水样外,其他油泥污染水样中苯并(a)芘(BaP)未超标,但所有测试水样都具有较高的急性生物毒性,相对发光抑制率最高达到87.46%,大大超过了毒性参照物100 mg·L~(-1)的Zn~(2+)的抑制率。
[Abstract]:In order to better control the environmental pollution of oily sludge, the contents, sources and total toxic equivalent concentration of PAHs in five kinds of oily sludge from different sources were analyzed experimentally. The acute biotoxicity of different organic solvent extracts was determined. The PAHs and acute biotoxicity of polluted water samples were analyzed. It is found that the total toxicity equivalent of PAHs in different oily sludge is 496.1010 ~ 4 233.25 渭 g / g ~ (-1) (TEQ) = 8.41 ~ (-1) 渭 g / g ~ (-1). The PAHs in oily sludge of refinery mainly come from the thermal conversion of petroleum and its refined products, and the PAHs in other oily sludge mainly come from crude oil itself. Hexane is the most suitable solvent for measuring acute biological toxicity of oily sludge. The content of PAHs in polluted water samples was 9.68 ~ 385.16 ng / mL ~ (-1) ~ (-1). Except for those polluted by tank oil sludge, the content of Benzopyrene pyrene (BaP-) in other polluted water samples did not exceed the standard, but all the tested water samples had high acute biotoxicity. The highest inhibition rate of relative luminescence was 87.46%, which was much higher than that of ZnP0 ~ 2 (100 mg / L ~ (-1).
【作者单位】：浙江大学热能工程研究所能源清洁利用国家重点实验室;
【基金】：国家自然科学基金资助项目(51576172)
【分类号】：X832;X74

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