...
首页> 外文期刊>Journal of Hazardous Materials >Ecotoxicity of cyarlide complexes in industrially contaminated soils
【24h】

Ecotoxicity of cyarlide complexes in industrially contaminated soils

机译:氰草化物配合物在工业污染土壤中的生态毒性

获取原文
获取原文并翻译 | 示例
           

摘要

This study deals with acute and chronic ecotoxicity of leachates from industrially contaminated soils. Analyses focused on cyanides (complex and free forms) to study their possible involvement in leachates toxicity. No acute toxicity on the Microtox and 48 h-Daphnia magna tests was found in leachates collected over 18 months, but a high chronic toxicity was recorded on the reproduction of Ceriodaphnia dubia (EC5O-7 d = 0.31 ± 0.07%) and on the algal growth of Pseudokirchneriella subcapitata (EC50-72 h = 0.27 ± 0.09%). Ceriodaphnids were as sensitive to free cyanide as to complex forms (EC50-7 d as CN~- = 98 μg/L, 194 μg/L and 216μg/L for KCN, Fe(CN)_6K_3 and Fe(CN)_6K_4, respectively). The EC50-72h of KCN to P. subcapitata (116 μg/L) as CN~- was also of the same level as the EC50-72 h of potassium ferricyanide (127 μg/L) and ferrocyanide (267 μg/L). Complex cyanides explained a major part of the toxicity of leachates of the soil. On the other hand, cyanide complexes had no effect on survival of the earthworm Eisenia fetida up to 131 mgCN~-/kg, while potassium cyanide was highly toxic [EC50-14 das CN~- = 74μg/kg soil]. Thermodesorption treatment eliminated a majority of cyanides from the soil and generated much less toxic leachates. Complex cyanides must be integrated into environmental studies to assess the impact of multi-contaminated soils.
机译:这项研究涉及工业污染土壤中渗滤液的急性和慢性生态毒性。分析重点在于氰化物(复杂和自由形式),以研究其可能与浸出液毒性有关。在18个月内收集的渗滤液中,未发现Microtox和48 h-Daphnia magna试验的急性毒性,但记录了重症的Ceriodaphnia dubia(EC5O-7 d = 0.31±0.07%)和藻类的高慢性毒性。假单胞菌的生长(EC50-72 h = 0.27±0.09%)。蓝尾蛇对游离氰化物和复杂形式都一样敏感(对于KCN,Fe(CN)_6K_3和Fe(CN)_6K_4而言,EC50-7 d的CN〜-分别为98μg/ L,194μg/ L和216μg/ L) )。 KCN相对于次要假单胞菌的EC50-72h(116μg/ L)也与铁氰化钾(127μg/ L)和亚铁氰化物(267μg/ L)的EC50-72h处于同一水平。复杂的氰化物解释了土壤渗滤液毒性的主要部分。另一方面,氰化物配合物对f达131 mgCN〜-/ kg的埃塞俄比亚survival没有影响,而氰化钾具有高毒性[EC50-14 das CN〜-=74μg/ kg土壤]。热脱附处理消除了土壤中的大部分氰化物,并产生了毒性低得多的渗滤液。复杂的氰化物必须纳入环境研究中,以评估多污染土壤的影响。

著录项

  • 来源
    《Journal of Hazardous Materials》 |2011年第2011期|p.369-377|共9页
  • 作者单位

    CNRS UMR 7146, Laboratoire Interactions, Ecotoxicologie, Biodiversite, Ecosystemes, UFR Sciences Fondamentales et Appliquees - Universite Paul Verlaine Metz, rue General Delestraint, F-57070 Metz, France;

    CNRS UMR 7146, Laboratoire Interactions, Ecotoxicologie, Biodiversite, Ecosystemes, UFR Sciences Fondamentales et Appliquees - Universite Paul Verlaine Metz, rue General Delestraint, F-57070 Metz, France;

    CNRS UMR 7146, Laboratoire Interactions, Ecotoxicologie, Biodiversite, Ecosystemes, UFR Sciences Fondamentales et Appliquees - Universite Paul Verlaine Metz, rue General Delestraint, F-57070 Metz, France;

    CNRS UMR 7146, Laboratoire Interactions, Ecotoxicologie, Biodiversite, Ecosystemes, UFR Sciences Fondamentales et Appliquees - Universite Paul Verlaine Metz, rue General Delestraint, F-57070 Metz, France;

    CNRS UMR 7146, Laboratoire Interactions, Ecotoxicologie, Biodiversite, Ecosystemes, UFR Sciences Fondamentales et Appliquees - Universite Paul Verlaine Metz, rue General Delestraint, F-57070 Metz, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    leachate; ceriodaphnia dubia; pseudokirchneriella subcapitata; eisenia fetida; free cyanide;

    机译:渗滤液胫骨紫檀假单胞菌费森游离氰化物;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号