| 酸化污泥回流的生物淋滤技术处理制革污泥 |
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| 引用本文： | 王电站,周立祥.酸化污泥回流的生物淋滤技术处理制革污泥[J].中国环境科学,2006,26(3):0-0. |
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| 作者姓名： | 王电站 周立祥 |
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| 作者单位： | 南京农业大学资源与环境科学学院 江苏南京210095 |
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| 基金项目： | 国家自然科学基金;浙江省科技攻关项目 |
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| 摘 要： | 采用回流——即在原始污泥中添加淋滤结束的生物酸化污泥继续进行淋滤的方法,研究了回流比、混合污泥起始pH值、酸化污泥pH值对生物淋滤技术去除制革污泥中重金属铬的影响.结果表明,采用回流的方法能够同步完成原污泥的预酸化和接种,当控制回流后混合污泥的起始pH值在4.00左右时,经过3d的淋滤,污泥的pH值下降到1.95以下,污泥中铬的溶出率达到95%以上.
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| 关 键 词： | 生物淋滤 回流 制革污泥 铬 |
| 文章编号： | 1000-6923(2006)03-0284-04 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 2005年9月26日 |
The bioleaching of acidified sludge circumfluence treating tannery sludge |
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| WANG Dian-zhan,ZHOU Li-xiang.The bioleaching of acidified sludge circumfluence treating tannery sludge[J].China Environmental Science,2006,26(3):0-0. |
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| Authors: | WANG Dian-zhan ZHOU Li-xiang |
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| Abstract: | The influence of circumfluence ratio, beginning pH value of mixed sludge and pH value of acidified sludge on the removal of heavy metal Cr in tannery sludge by bioleaching technique was studied adopting circumfluence; that was to say, the technique of continuous preceding of bioacidified sludge after adding leaching in the original sludge. Adopting the circumfluence technique could complete synchronously the pre-acidification and the inoculation of the original sludge. After controlling of circumfluence, the initiative pH value of mixed sludge was controlled around 4.00, the pH value of sludge decreased below 1.95 in the leaching of 3d, and the dissolved rate of Cr in the sludge reached over 95%. |
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| Keywords: | bioleaching circumfluence tannery sludge Cr |
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