| 铬渣的微生物治理新技术研究 |
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| 引用本文： | 罗金明,周运星,王云燕. 铬渣的微生物治理新技术研究[J]. 湖南有色金属, 2005, 21(6): 31-33,52 |
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| 作者姓名： | 罗金明 周运星 王云燕 |
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| 作者单位： | 汉寿县第一中学,湖南,汉寿,415900;中南大学,湖南,长沙,410083 |
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| 摘 要： | 本研究采用课题组发现的还原Cr（VI）的专属无色杆菌属Ch-1菌株，对铬渣进行微生物治理。结果表明：铬渣渗滤液经该菌处理后，其中的Cr（VI）可达排放标准，沉淀物中Cr（OH）3含量达32.8％，具有实际回收价值。将铬渣进行微生物柱浸，7d后溶液中检测不出cr（VI）；解毒后铬渣中Cr（VI）达到国家危险废物毒性鉴别标准（GB5085-1996）。
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| 关 键 词： | 铬渣 微生物治理 新技术 |
| 文章编号： | 1003-5540（2005）06-0031-03 |
| 收稿时间： | 2005-09-25 |
| 修稿时间： | 2005-09-25 |
Study on New Microbial Treatment Technology of Chromium-containing Slag |
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| LUO Jin-ming,ZHOU Yun-xing,WANG Yun-yan. Study on New Microbial Treatment Technology of Chromium-containing Slag[J]. Hunan Nonferrous Metals, 2005, 21(6): 31-33,52 |
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| Authors: | LUO Jin-ming ZHOU Yun-xing WANG Yun-yan |
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| Affiliation: | 1. The First Middle School of Hanshou County, Hanshou 415900, China ; 2. Central South University, Changsha 410083, China |
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| Abstract: | In this study,Chromium-containing slag was detoxified by the method of microbial treatment using Ch-1 bacteria isolated from nature by our research group,belonging to achromobacter sp.and with the characteristic of reducing high concentration Cr(VI) in alkaline solution.The results indicate that Cr(VI) in alkline leachate of Chromium-containing slag meet the national discharge standard after treated by Ch-1 bacteria.The content of Cr(OH)_3 is up to 32.8% with great value of resource reclamation.Cr(VI) in solution can not be detected when Chromium-containing slag has been column leached by Ch-1 bacteria for 7 days.The content of Cr(VI) in Chromium-containing slag after detoxified meet the national identification standard for extraction procednre toxicity for hazardous wastes(GB5085-1996). |
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| Keywords: | Chromium-containing slag microbial treatment new technology |
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