| 污泥制备活性炭过程中重金属含量的变化趋势 |
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| 引用本文： | 赵文霞,任爱玲,郭斌.污泥制备活性炭过程中重金属含量的变化趋势[J].环境科学与技术,2009,32(12). |
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| 作者姓名： | 赵文霞 任爱玲 郭斌 |
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| 作者单位： | 河北科技大学环境科学与工程学院,河北,石家庄,050018 |
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| 基金项目： | 河北省科技厅科技攻关计划项目资助，河北省污染防治生物技术重点实验室和河北省环境工程重点学科资助 |
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| 摘 要： | 对采集的两类污泥(城市污泥、制药污泥)及其制备的活性炭进行消解处理,采用火焰原子吸收法对消解液中重金属的含量进行测定,初步探讨了污泥资源化过程中重金属的变化规律。研究结果表明:两类污泥中重金属的含量变化范围很大,其中Zn含量最高,最高值达2859.4mg/kg,其次为Cu、Pb、Cr,Cd最少;除Cr元素外,城市污泥中重金属元素Zn、Cu、Pb、Cd含量普遍高于制药污泥;由污泥烧制的活性炭中重金属含量明显减少,表明污泥烧制成活性炭后Cu、Cr、Pb、Cd更加稳定。
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| 关 键 词： | 污泥 活性炭 重金属 变化趋势 |
Heavy Metal Content and Their Decreasing Trends in the Process of Activated Carbon Prepared from Sewage Sludge |
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| ZHAO Wen-xia,REN Ai-ling,GUO Bin.Heavy Metal Content and Their Decreasing Trends in the Process of Activated Carbon Prepared from Sewage Sludge[J].Environmental Science and Technology,2009,32(12). |
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| Authors: | ZHAO Wen-xia REN Ai-ling GUO Bin |
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| Institution: | ZHAO Wen-xia,REN Ai-ling,GUO Bin (School of Environmental Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China) |
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| Abstract: | Pretreating tests were done for two types of sludge from urban sludge and pharmaceutical sludge as well as the produced activated carbon,with heavy metal contents in the pretreating solution determined by flame atomic adsorption spector (FAAS). Decreasing trends of heavy metal elements content in the process of activated carbon prepared from sewage sludge was studied,and results showed that the content of heavy metal elements varied much bigger,with the maximum as the content of Zn up to 2,859.4mg/kg,follow... |
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| Keywords: | sewage sludge activated carbon heavy metal decreasing trends |
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