| 从垃圾焚烧飞灰中回收金属研究进展 |
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| 引用本文： | 郑丽婷,刘阳生.从垃圾焚烧飞灰中回收金属研究进展[J].环境工程,2008(Z1). |
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| 作者姓名： | 郑丽婷 刘阳生 |
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| 作者单位： | 北京大学环境科学与工程学院环境工程系水沙科学教育部重点实验室; |
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| 摘 要： | 焚烧处理已成为我国大城市生活垃圾处理的主要方式之一,焚烧飞灰属于危险废物,其处理处置与利用已成为焚烧厂面临的主要问题。飞灰中含有大量的金属,如将其回收利用不仅可以缓解我国金属资源短缺的问题,而且可使飞灰由危险废物转化为惰性固体废物而加以利用。介绍从飞灰中回收金属国内外研究现状并分析了现有工艺存在的问题,建议采用水洗预处理结合酸碱两步浸取,辅之以溶剂选择萃取的方法从一次飞灰中选择性回收Pb、Cu和Zn。
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| 关 键 词： | 垃圾焚烧 飞灰 金属回收 |
THE PROGRESS IN RESEARCH ON METAL RECOVERY FROM MASWI FLY ASH |
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| Zheng Liting LiuYangsheng.THE PROGRESS IN RESEARCH ON METAL RECOVERY FROM MASWI FLY ASH[J].Environmental Engineering,2008(Z1). |
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| Authors: | Zheng Liting LiuYangsheng |
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| Institution: | Zheng Liting LiuYangsheng(Key Laboratory of Water , Sediment Science,Ministry of Education,Department of Environmental Engineering,College of Environmenal Sciences , Engineering,Peking University,Beijing 100871) |
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| Abstract: | Incineration is an efficient method for municipal solid wastes(MSW) treatment. Fly ash is regarded as the hazardous material.Thus,disposal of fly ash becomes the main problem for incineration plants.Many kinds of metals are concentrated in fly ash.If they are recycled,it can not only relieve the resource shortage of metals,but also can change hazardous waste into inert solid waste and then make use of it.It is introduced the progresd of metal recovery from MSWI fly ash and discussed the problem of the exist... |
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| Keywords: | refuse incineration fly ash metal recovery |
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