| 污泥/煤流化床混烧底灰中的重金属毒性研究 |
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| 引用本文： | 赵晓莉,朱伟,徐德福,邱林倩,张超,杨创.污泥/煤流化床混烧底灰中的重金属毒性研究[J].南京气象学院学报,2013,5(3):244-250. |
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| 作者姓名： | 赵晓莉 朱伟 徐德福 邱林倩 张超 杨创 |
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| 作者单位： | 河海大学 环境学院,南京,210098;南京信息工程大学 环境科学与工程学院,南京,210044;南京信息工程大学 江苏省大气环境监测与污染控制高技术研究重点实验室,南京,210044;河海大学 环境学院,南京,210098;南京信息工程大学 环境科学与工程学院,南京,210044;南京信息工程大学 江苏省大气环境监测与污染控制高技术研究重点实验室,南京,210044;南京信息工程大学 环境科学与工程学院,南京,210044;南京信息工程大学 环境科学与工程学院,南京,210044;南京信息工程大学 环境科学与工程学院,南京,210044 |
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| 基金项目： | 国家自然科学基金(50979028) |
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| 摘 要： | 研究了污泥与煤按不同质量比例混烧后,底灰中的重金属形态分布与浸出毒性.结果表明:30:70的泥煤比使底灰中重金属硫化物及有机态和残渣态所占比例最大,即生物无效部分比例最大;在浸出毒性实验中,30:70的泥煤比使底灰重金属浸出量最小.由此推出,对环境毒害程度最小的泥煤质量比为30:70,即该实验条件下最优泥煤质量比为30:70.
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| 关 键 词： | 泥煤质量比 混烧 底灰 重金属形态 毒性 |
| 收稿时间： | 2011/6/16 0:00:00 |
Research on heavy metal toxicity of bottom ashes produced in co-combustion of sludge and coal in fluidized beds |
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| ZHAO Xiaoli,ZHU Wei,XU Defu,QIU Linqian,ZHANG Chao and YANG Chuang.Research on heavy metal toxicity of bottom ashes produced in co-combustion of sludge and coal in fluidized beds[J].Journal of Nanjing Institute of Meteorology,2013,5(3):244-250. |
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| Authors: | ZHAO Xiaoli ZHU Wei XU Defu QIU Linqian ZHANG Chao and YANG Chuang |
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| Institution: | College of Environment,Hohai University,Nanjing 210098;School of Environmental Science and Engineering,Nanjing University of Information Science & Technology,Nanjing 210044;Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science & Technology,Nanjing 210044;College of Environment,Hohai University,Nanjing 210098;School of Environmental Science and Engineering,Nanjing University of Information Science & Technology,Nanjing 210044;Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science & Technology,Nanjing 210044;School of Environmental Science and Engineering,Nanjing University of Information Science & Technology,Nanjing 210044;School of Environmental Science and Engineering,Nanjing University of Information Science & Technology,Nanjing 210044;School of Environmental Science and Engineering,Nanjing University of Information Science & Technology,Nanjing 210044 |
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| Abstract: | The heavy metal speciation distribution and leaching toxicity are analyzed in bottom ashes produced by co-combustion of sewage sludge and coal with different ratios.The results show that the biologically invalid portions,namely sulfuric,organic and residual forms of heavy metal increase to maximum with the ratio of sewage sludge to coal being 30%.Meanwhile,the leaching toxicity of heavy metal is least with the ratio of sewage sludge to coal being 30%.The conclusion of optimum ratio of sewage sludge to coal under our experiment condition is 30%,or in other words,the 30% of sewage sludge to coal ratio in co-combustion can dispose of the sewage sludge effectively as well as discharge least heavy metal toxicity to the environment. |
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| Keywords: | ratio of sewage sludge to coal co-combustion bottom ashes heavy metal speciation toxicity |
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