李娟英;苏磊;崔昱;陈洁芸;李振华;

• 1:上海海洋大学农业部淡水水产种质资源重点实验室

摘要(Abstract)：

为了研究污水污泥在海洋环境中释放带来的生态风险,在分析上海7处典型污水处理厂污水污泥浸出液中重金属与溶解性有机碳的基础上,使用黑鲷,卤虫,三角褐指藻,纤细角毛藻和小球藻研究污水污泥浸出液对海洋生物的急性毒性作用和生长抑制作用。化学分析结果表明,所有样点的污水污泥浸出液中重金属总量均低于中国(GB5085.3-2007)与欧盟(EN12457.2-2002)关于危险废弃物的鉴别标准,但溶解性有机碳(DOC)含量超过欧盟标准1个数量级。毒性实验结果表明,黑鲷幼鱼对污水污泥浸出液的敏感性最强,其次是海洋微藻,卤虫无节幼体的敏感性较低;毒性综合分析结果表明,S2和S3点的污水污泥浸出液对海洋生物的综合生物毒性相对最高,而S4,S5的综合生物毒性最低,其中接纳污水为工业污水,且有机质与硫化物含量较低的污水污泥浸出液对海洋生物的综合生物毒性较低。

关键词(KeyWords)： 污水污泥;浸出液;重金属;急性毒性;生长抑制

Abstract:

Keywords:

基金项目(Foundation): 国家海洋局公益项目子课题(201105010-10)

作者(Author): 李娟英;苏磊;崔昱;陈洁芸;李振华;

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