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水泥窑共处置产品中重金属的形态

薛靖川 杨玉飞 黄启飞

薛靖川, 杨玉飞, 黄启飞. 水泥窑共处置产品中重金属的形态[J]. 环境科学研究, 2010, 23(10): 1300-1305.
引用本文: 薛靖川, 杨玉飞, 黄启飞. 水泥窑共处置产品中重金属的形态[J]. 环境科学研究, 2010, 23(10): 1300-1305.
XUE Jing-chuan, YANG Yu-fei, HUANG Qi-fei. Heavy Metal Species in Cement Products from Co-Processing Waste in Cement Kilns[J]. Research of Environmental Sciences, 2010, 23(10): 1300-1305.
Citation: XUE Jing-chuan, YANG Yu-fei, HUANG Qi-fei. Heavy Metal Species in Cement Products from Co-Processing Waste in Cement Kilns[J]. Research of Environmental Sciences, 2010, 23(10): 1300-1305.

水泥窑共处置产品中重金属的形态

基金项目: 国家“十一五”科技支撑计划项目(2007BAC16B03,2006BAC02A19)

Heavy Metal Species in Cement Products from Co-Processing Waste in Cement Kilns

  • 摘要: 通过模拟煅烧掺入重金属化学试剂的水泥生料,制备水泥熟料,进而制取水泥净浆. 采用修正的Tessier连续提取法,分别研究了水泥熟料和水泥净浆中各重金属的形态. 结果表明:水泥熟料中Ni,As,Cd和Pb几乎不存在可交换态. 其中,Cr和Cd主要以酸性醋酸钠溶液提取态存在,分别为71.0%和95.1%;Ni主要分布在酸性盐酸羟胺溶液提取态(65.6%)中,在残渣态中的分布也较多(20.3%);Pb主要分布在硫化物结合态(72.7%)中,与硫形成某种化合物固溶于水泥矿物相中;As的硫化物结合态和酸性醋酸钠溶液提取态质量分数较高,分别为35.1%和51.8%. 水泥净浆中各重金属的形态分布与水泥熟料基本一致,表明重金属的主要化学形态分布受水化作用影响不大.

     

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出版历程
  • 收稿日期:  2010-01-24
  • 修回日期:  2010-05-31
  • 刊出日期:  2010-10-25

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