生态与农村环境学报 ›› 2012, Vol. 28 ›› Issue (2): 209-212.doi:

• 污染控制与修复 • 上一篇    下一篇

印染废水对3种水生生物的毒性作用

原居林, 胡大雁, 杨卫明, 练青平, 朱俊杰, 顾志敏   

  1. 浙江省淡水水产研究所
  • 收稿日期:2011-08-31 修回日期:2012-01-04 出版日期:2012-03-25 发布日期:2012-03-27
  • 通讯作者: 原居林 浙江省淡水水产研究所 E-mail:yuanjulin1982@163.com
  • 作者简介:原居林(1983-),男,山东烟台人,博士生,主要从事水域生态学方面的研究。E-mail:ivanyuanjulin@yahoo.cn
  • 基金资助:

    国家重点基础研究发展计划(2008CB418000);湖州市科技攻关项目(2010GN02)

Toxicity of Printing-Dyeing Wastewater to Aquatic Organisms

YUAN  Ju-Lin, HU  Da-Yan, YANG  Wei-Ming, LIAN  Qing-Ping, ZHU  Jun-Jie, GU  Zhi-Min   

  1. Zhejiang Institute of Freshwater Fisheries
  • Received:2011-08-31 Revised:2012-01-04 Online:2012-03-25 Published:2012-03-27
  • Contact: YUAN Ju-Lin Zhejiang Institute of Freshwater Fisheries E-mail:yuanjulin1982@163.com

摘要: 为合理评估印染废水对水环境造成的影响,以斜生栅藻(Scenedesmus obliquus)、大型溞(Daphnia magna)和太湖花鱼骨(Hemibarbus maculates)为受试生物,印染废水分别用标准稀释液7346-2按照几何级数稀释成为100.00%、50.00%、25.00%、12.50%和6.25%的系列试验液,研究印染废水对3种水生生物的毒性效应。结果表明,印染废水对水生态系统中不同营养层次的3种生物均有一定的毒性,对斜生栅藻24、48h的半数生长抑制浓度(EC50)分别为(51.55±4.12)%、(20.40±6.27)%,对大型溞24、48h的EC50分别为(78.20±4.31)%、(53.10±1.88)%,对花(鱼骨)卵裂期胚胎、囊胚期胚胎、原肠期胚胎、初孵仔鱼和25日龄仔鱼96h的半数致死浓度(LC50)分别为(19.89±1.68)%、(25.95±2.14)%、(27.24±0.88)%、(19.61±2.21)%和(49.27±3.27)%。研究得出印染废水对水生生物的安全浓度为1.96%,生产中应严格控制其排放。

关键词: 印染废水, 斜生栅藻, 大型溞, 太湖花(鱼骨), 毒性

Abstract: To evaluate impact of printing-dyeing wastewater on aquatic ecological systems,an experiment was carried out using Scenedesmus obliquusDaphnia 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%,12.5%,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 H.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.

Key words: printing-dyeing wastewater, Scenedesmus obliquus, Daphnia magna, Hemibarbus maculates, toxicity

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