吕向立,
吴鹏,
朱艾嘉,
倪志鑫,
张敬怀,
陈斌
国家海洋局南海环境监测中心, 广州 510300

作者简介: 吕向立(1985-),男,学士,研究方向为海洋生态毒理学,E-mail:xianglilyu@163.com.

基金项目: 国家海洋局公益性科研项目子课题(201105010-2)；广东省自然科学基金项目(2014A030310495)；国家海洋局南海分局海洋科学技术局长基金(1431)


中图分类号: X171.5

Toxicity of Municipal Sewage Sludge to Marine Organisms

Lyu Xiangli,
Wu Peng,
Zhu Aijia,
Ni Zhixin,
Zhang Jinghuai,
Chen Bin
South China Sea Environmental Monitoring Center, SOA, Guangzhou 510300, China

CLC number: X171.5

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摘要:以广州市和佛山市的5个城市污水处理厂的污泥为实验对象,选取费氏弧菌、蒙古裸腹溞、卤虫、裸项栉鰕虎鱼仔鱼4种不同营养级的海洋生物为受试对象,结合化学分析方法,研究广州区域周边污水污泥浸出液的生物毒性效应。结果显示各污水污泥浸出液的毒性均较大,且浸出液的Cu污染浓度较高;广州市污水污泥对4种受试生物的毒性效应要高于佛山市。从污泥毒性对受试生物的选择性方面分析,发现卤虫筛分能力强且灵敏度高,而费氏弧菌则相关性好且方法简捷。研究结果为反映城市污泥的生物毒性强度和选择合适毒性评价受试生物提供基础数据。
关键词: 污泥浸出液/
重金属/
费氏弧菌/
蒙古裸腹溞/
卤虫/
裸项栉鰕虎鱼/
生物毒性

Abstract:Five municipal sewage sludge leachate from Guangzhou and Foshan was selected for exploring the biological toxicity effect on four marine organisms at different trophic levels, including Vibrio fischeri, Moina mongolica, Artemia franciscana, larval Ctenogobius gymnauchen. Results showed that the biological toxicity of the leachate was significant, in which higher Cu concentration was found. Furthermore, the toxicity effect on four marine organisms was higher in Guangzhou than Foshan. Artemia franciscana was sensitive to all the samples, and exhibited different LC₅₀ to different sludge leachate. EC₅₀ for Vibrio fischeri was highly correlated with LC₅₀ for Artemia franciscana and Moina mongolica, while its toxicity test approach was much simpler. The study can provide data sources for the biological toxicity evaluation of municipal sewage sludge and for selecting suitable marine organisms for this toxicity evaluation.
Key words:sewage sludge leachate/
heavy metal/
Vibrio fischeri/
Moina mongolica/
Artemia franciscana/
larval Ctenogobius gymnauchen/
biological toxicity.