| 铬渣浸出毒性试验研究 |
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| 引用本文： | 龙腾发,柴立元,傅海洋,赵堃.铬渣浸出毒性试验研究[J].环境工程,2004,22(6):71-73. |
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| 作者姓名： | 龙腾发 柴立元 傅海洋 赵堃 |
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| 作者单位： | 中南大学冶金科学与工程学院,环境工程系,湖南,长沙,410083 |
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| 基金项目： | 教育部优秀青年教师资助计划项目 (教人司 2 0 0 1 39号 ) |
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| 摘 要： | 铬渣给环境带来的危害一直困扰着铬盐行业的发展 ,其浸出毒性研究有利于对铬渣危害的监测评估、治理及综合利用。本试验对新渣和陈渣的浸出毒性进行了探讨 ,同时对铬渣中Cr(Ⅵ )进行全量溶取 ,并分析铬渣中主要阴、阳离子的浸出行为。从而提出适宜于评价铬渣浸出毒性的试验方法 ,即 :液固比 2 0∶1,浸取时间 8h、提取剂为HAC NaAC(pH5 0± 0 2 ) ,粒径为 12 0目的浸出体系
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| 关 键 词： | 铬渣 六价铬 浸出毒性 固体废弃物 |
TEST STUDY ON TOXICITY OF CHROMIUM-CONTAINING SLAG LEACHING |
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| Long Tengfa et al.TEST STUDY ON TOXICITY OF CHROMIUM-CONTAINING SLAG LEACHING[J].Environmental Engineering,2004,22(6):71-73. |
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| Authors: | Long Tengfa |
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| Institution: | Long Tengfa et al |
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| Abstract: | Environmental problems resulted from chromium-containing slag always hindered the development of chromium industry,whose study on leaching toxicity is favorable to monitoring,evaluating,treating and complex utilizing of chromium-containing slag.Leaching toxicity of the new and old chromium-containing slag was discussed.At the same time the total Cr(Ⅵ) in chromium-containing slag was extracted,and the leaching behaviors of the main anion and cation in chromium-containing slag were analysed.Finally,a novel method fitting for evaluating the leaching toxicity of chromium-containing slag was suggested,mainly including solid-liquid rate:20:1,extracting time:8 h,extraction agent:HAC-NaAC(pH5.0±0.2),particle size of the slag:120 mesh. |
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| Keywords: | chromium-containing slag hexavalent chromium leaching toxicity and solid wastes |
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