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不同粒径垃圾焚烧飞灰中重金属富集特性表征

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胡艳军, 孙铁. 不同粒径垃圾焚烧飞灰中重金属富集特性表征[J]. 环境化学, 2012, 31(11): 1717-1723.
引用本文: 胡艳军, 孙铁. 不同粒径垃圾焚烧飞灰中重金属富集特性表征[J]. 环境化学, 2012, 31(11): 1717-1723.
shu
HU Yanjun, SUN Tie. Heavy metal enrichment in municipal solid waste incineration fly ash with various size ranges[J]. Environmental Chemistry, 2012, 31(11): 1717-1723.
Citation: HU Yanjun, SUN Tie. Heavy metal enrichment in municipal solid waste incineration fly ash with various size ranges[J]. Environmental Chemistry, 2012, 31(11): 1717-1723.
shu

不同粒径垃圾焚烧飞灰中重金属富集特性表征

  • 1.

    浙江工业大学, 能源与动力工程研究所, 杭州, 310024;

  • 2.

    辽宁省交通高等专科学校建工系, 沈阳, 110122

  • 基金项目:

    国家自然科学基金项目(51008279)

    浙江省环保科研计划项目(2010B15)

    住建部研究开发项目(2010-K1-21)资助.

Heavy metal enrichment in municipal solid waste incineration fly ash with various size ranges

  • 1.

    Zhejiang University of Technology, Institute of Power and Energy Research, Hangzhou, 310024, China;

  • 2.

    Liaoning Provincial College of Communications, School of Construction Engineering, Shenyang, 110122, China

  • Fund Project:

  • 摘要: 针对杭州市生活垃圾焚烧飞灰按粒径级别进行其重金属特性表征,主要展开飞灰组成元素和矿物成分、重金属含量分布、以及重金属与飞灰颗粒的微观结合行为等研究.结果表明,"SiO2-CaO-Al2O3-金属氧化物"体系构成了重金属的富集载体;Zn、Pb、Cu、Mn、Ni、Cr、Sb等重金属在75-125 μm飞灰颗粒中的占有率最高,达52%;Zn、Cu、Cr随着粒径减小其含量显著增加,其它重金属未见此趋势;通过SEM-EDX对飞灰颗粒表面和断面进行扫描电镜观察和面、线扫描元素能谱分析,在飞灰断面发现了更多类型、更密集的重金属分布.通过结合XRF、ICP-MS、SEM-EDX等仪器手段分析飞灰中重金属富集特性,深入探索重金属在飞灰颗粒中富集特征.
    Abstract: Fly ash from a Hangzhou incinerator was characterized on the basis of the particle size distribution. Major elements, heavy metal distribution, and binding states of heavy metals with fly ash particles were studied in this paper. It was found that "SiO2-CaO-Al2O3-metal-oxide" was the carrier of heavy metals in fly ash. The contribution of Zn, Pb, Cu, Mn, Ni, Cr, Sb in 75-125 μm of the fly ash fraction is the highest, which reached about 52%. Zn, Cu and Cr contents increased with decreasing size of fly ash particles, but other heavy metals showed little increase. More heavy metals and higher distributions were detected on the crossing-section area of fly ash particles than their surface area. Our results suggest that the comprehensive method of applying XRF, ICP-MS, and SEM-EDX to analyze heavy metals in fly ash can provide better and deeper understanding on heavy metal distributions.
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  • [1] Chang F Y, Wey M Y. Comparison of the characteristics of bottom and fly ashes generated from various incineration processes [J]. Journal of Hazardous Materials, 2006, B138: 594-603
    [2] Abanades S, Flamant G, Gagnepain J, et al. Fate of heavy metals during municipal solid waste incineration [J]. Waste Management & Research, 2002, 20(1): 55-68
    [3] Chou J D, Wey M Y, Liang H H, et al. Biotoxicity evaluation of fly ash and bottom ash from different municipal solid waste incinerators [J]. Journal of Hazardous Materials, 2009, 168: 197-202
    [4] 王涛, 刘廷峰, 高占启, 等.城市垃圾焚烧飞灰中重金属的形态及酸浸出性研究[J]. 环境化学, 2007, 26(5):658-661
    [5] 固体废弃物实验分析评价手册[M].北京:中国环境科学出版社, 1992:63-65
    [6] Liu Y S, Zheng L T, Li X D, et al. SEM/EDS and XRD characterization of raw and washed MSWI fly ash sintered at different temperatures [J]. Journal of Hazardous Materials, 2009, 162(1): 161-173
    [7] 郭玉文,王伟,闫允杰. 基于EDX的飞灰元素组成及重金属分布研究[J]. 环境科学研究, 2007, 20(6):72-76
    [8] 郭玉文,王伟,高兴保,等.垃圾焚烧飞灰颗粒的微观形态特征及能谱研究[J].燃料化学学报,2005, 33(6): 703-707
    [9] 何品晶, 章骅, 曹群科, 等. 上海浦东垃圾焚烧发电厂飞灰性质研究 [J]. 环境化学, 2004, 23(1):38-42
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出版历程
  • 收稿日期:  2011-12-26
胡艳军, 孙铁. 不同粒径垃圾焚烧飞灰中重金属富集特性表征[J]. 环境化学, 2012, 31(11): 1717-1723.
引用本文: 胡艳军, 孙铁. 不同粒径垃圾焚烧飞灰中重金属富集特性表征[J]. 环境化学, 2012, 31(11): 1717-1723.
shu
HU Yanjun, SUN Tie. Heavy metal enrichment in municipal solid waste incineration fly ash with various size ranges[J]. Environmental Chemistry, 2012, 31(11): 1717-1723.
Citation: HU Yanjun, SUN Tie. Heavy metal enrichment in municipal solid waste incineration fly ash with various size ranges[J]. Environmental Chemistry, 2012, 31(11): 1717-1723.
shu

不同粒径垃圾焚烧飞灰中重金属富集特性表征

  • 1.  浙江工业大学, 能源与动力工程研究所, 杭州, 310024;
  • 2.  辽宁省交通高等专科学校建工系, 沈阳, 110122
  • 收稿日期:  2011-12-26
基金项目:

国家自然科学基金项目(51008279)

浙江省环保科研计划项目(2010B15)

住建部研究开发项目(2010-K1-21)资助.

摘要: 针对杭州市生活垃圾焚烧飞灰按粒径级别进行其重金属特性表征,主要展开飞灰组成元素和矿物成分、重金属含量分布、以及重金属与飞灰颗粒的微观结合行为等研究.结果表明,"SiO2-CaO-Al2O3-金属氧化物"体系构成了重金属的富集载体;Zn、Pb、Cu、Mn、Ni、Cr、Sb等重金属在75-125 μm飞灰颗粒中的占有率最高,达52%;Zn、Cu、Cr随着粒径减小其含量显著增加,其它重金属未见此趋势;通过SEM-EDX对飞灰颗粒表面和断面进行扫描电镜观察和面、线扫描元素能谱分析,在飞灰断面发现了更多类型、更密集的重金属分布.通过结合XRF、ICP-MS、SEM-EDX等仪器手段分析飞灰中重金属富集特性,深入探索重金属在飞灰颗粒中富集特征.

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