| 生物沥滤去除污泥重金属:污泥固体浓度和类型影响 |
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| 引用本文： | 华玉妹,陈英旭,吴伟祥,田光明.生物沥滤去除污泥重金属:污泥固体浓度和类型影响[J].环境科学与技术,2006,29(12):62-64. |
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| 作者姓名： | 华玉妹 陈英旭 吴伟祥 田光明 |
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| 作者单位： | 1. 浙江大学环境工程系,杭州,310029;华中农业大学资源与环境学院,武汉,430070
2. 浙江大学环境工程系,杭州,310029 |
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| 基金项目： | 浙江省科研项目
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浙江省科技计划 |
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| 摘 要： | 研究了污泥固体浓度和污泥类型对Cu、Pb和Zn生物沥滤的影响。结果表明,污泥固体浓度越高,重金属沥出效果越差;高固体浓度污泥pH值降低缓慢,其SO42-产生量明显高于低污泥浓度。低固体浓度污泥下,氮磷钾营养物质流失量比高固体浓度污泥明显增多。厌氧消化污泥和生污泥中重金属的生物沥滤效果差异不大,但厌氧消化污泥的肥效流失明显高于生污泥。
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| 关 键 词： | 污泥 生物沥滤 重金属 固体浓度 肥效 |
| 文章编号： | 1003-6504(2006)12-0062-03 |
| 收稿时间： | 2006-06-12 |
| 修稿时间： | 2006-09-05 |
Bioleaching of Heavy Metals from Sewage Sludge: Effect of Solid Concentration and Sludge Style |
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| HUA Yu-mei,CHEN Ying-xu,WU Wei-xiang,TIAN Guang-ming.Bioleaching of Heavy Metals from Sewage Sludge: Effect of Solid Concentration and Sludge Style[J].Environmental Science and Technology,2006,29(12):62-64. |
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| Authors: | HUA Yu-mei CHEN Ying-xu WU Wei-xiang TIAN Guang-ming |
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| Abstract: | The effect of solid concentration and style of sewage sludge on bioleaching of copper, lead and zinc was investigated. It indicated that the removal efficiency of heavy metals and value of the decrease of pH became lower for the sludge with higher solid concentration, while the production of SO42- showed the contrary tendency. The loss of nutrient from the sludge with low concentration was obviously more than that from sludge with high concentration. There wasn't notable difference in the bioleaching efficiency between anaerobically digested sludge and raw sludge; however, the loss of nutrients from the former was higher than the latter. |
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| Keywords: | sewage sludge bioleaching heavy metals solid concentration nutrients |
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