Study of the heavy metals residual in the incineration slag of textile dyeing sludge
Study of the heavy metals residual in the incineration slag of textile dyeing sludge
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DOI：
10.1016/j.jtice.2014.02.008
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发表时间：
2014-07-01
影响因子：
5.7
通讯作者：
Liu, Jingyong
中科院分区：
文献类型：
--
作者：
Lin, Meiqing;Ning, Xun-an;Liu, Jingyong
研究了不同焚烧条件对印染污泥渣中Cu、Cr、Cd、Pb、Ni和Zn残留率的影响。结果表明，较高的温度（1000 ~ 1100 ℃）有利于渣中Cu、Ni、Zn的固化，较低的温度（700 ℃）有利于Cr、Cd、Pb的固化。Cu、Cr、Cd和Ni的残留率随停留时间的增加呈现出相似的趋势，而Pb则呈现出负相关。Cu、Cr、Ni和Zn的残留率随含水量的增加相对稳定，Cd和Pb的残留率随含水量的增加相对稳定。Cr、Zn、Pb和Cd的残留率随CaO用量的增加而增加，Cu的残留率则呈负相关。XRD分析表明，较高的温度和CaO添加剂对焚烧过程中重金属的结晶有积极的影响。(C)2014台湾化学工程师学会。Elsevier B. V.出版，保留所有权利。
The effects of various incineration conditions on the residual ratios of Cu, Cr, Cd, Pb, Ni and Zn in the slag of textile dyeing sludge were investigated. The results indicated that higher temperatures (1000 - 1100 degrees C) were conducive to the solidification of Cu, Ni and Zn in the slag and that a lower temperature (700 degrees C) was conducive to the solidification of Cr, Cd and Pb. The residual ratios of Cu, Cr, Cd and Ni exhibited similar tendencies as the residence time increased, but Pb exhibited a negative correlation. The residual ratios of Cu, Cr, Ni and Zn were relatively stable as the moisture increased except for those of Cd and Pb. The residual ratios of Cr, Zn, Pb and Cd increased as the CaO dosage increased, but Cu exhibited a negative correlation. For XRD analysis, a higher temperature and the CaO additive had a positive effect on the crystallization of heavy metals during incineration. (C) 2014 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.