生态与农村环境学报2012，Vol.28Issue(2)：209-212,4.
印染废水对3种水生生物的毒性作用
Toxicity of Printing-Dyeing Wastewater to Aquatic Organisms
摘要
Abstract
To evaluate impact of printing-dyeing wastewater on aquatic ecological systems, an experiment was carried out using Scenedesmus obliquus, Daphnia magna and Hemibarbus maculates as subjects for test of toxicity of printing-dyeing wastewater. In the experiment the wastewater was diluted with 7346 - 2 standard diluent into solutions different in concentration, I. E 100. 00% , 50. 00% , 25. 00% , 12. 50% , and 6. 25% . Results show that the wastewater was somewhat toxic to all the three kinds of aquatic organisms in the aquatic ecosystem regardless of its nutrient level. The 24 and 48 h-EC50 (effective concentration for reduction of growth by 50%) of the wastewater was (51.55 ±4. 12)% and (20.40 ± 6. 27)% , respectively, to S. Obliquus, and (78. 20 ±4. 31)% and (53. 10 ± 1. 88)% , respectively, to D. Magna. The 96h-LC50 of the wastewater to cleavage stage, blastula stage, gastrula stage, lava, and 25-day fingerlings of//, maculates was (19. 89 ±1.68)% , (25. 95 ±2. 14)% , (27. 24 ±0. 88)% , (19.61±2.21)%, and (49. 27 ±3. 27)% , respectively. The safe concentration of the wastewater to aquatic organisms was 1. 96% . So, discharge of such wastewater should be strictly controlled in practice.关键词
印染废水/斜生栅藻/大型溞/太湖花(鱼骨)/毒性Key words
printing-dyeing wastewater/ Scenedesmus obliquus/ Daphnia magna/ Hemibarbus maculates/ toxicity分类
资源环境引用本文复制引用
原居林,胡大雁,杨卫明,练青平,朱俊杰,顾志敏..印染废水对3种水生生物的毒性作用[J].生态与农村环境学报,2012,28(2):209-212,4.基金项目
国家重点基础研究发展计划(2008CB418000) （2008CB418000）
湖州市科技攻关项目(2010GN02) （2010GN02）
