| 硫固定法处理重金属废渣制作硫磺建材的研究 |
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| 引用本文： | 杨少辉,闵小波,柴立元,梁彦杰,蒋万顺.硫固定法处理重金属废渣制作硫磺建材的研究[J].中南大学学报(自然科学版),2011,42(11). |
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| 作者姓名： | 杨少辉 闵小波 柴立元 梁彦杰 蒋万顺 |
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| 作者单位： | 中南大学冶金科学与工程学院,湖南长沙,410083 |
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| 基金项目： | 国家杰出青年科学基金资助项目，国际科技合作项目，湖南省科技重大专项，国家高技术研究发展计划("863"计划)项目，教育部新世纪人才支持计划项目 |
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| 摘 要： | 以某冶炼厂污酸处理后形成的硫化渣和石膏渣为原料,在分析浸出毒性和抗压性能的基础上,探讨硫固定的工艺条件.研究结果表明:硫化渣的浸出毒性比石膏渣的浸出毒性强,其中Zn和Cd的浸出质量浓度分别为1 547.0 mg/L和104.4 mg/L;增加硫磺用量和添加石膏渣有利于降低其浸出质量浓度；利用1 mol/L硫化钠溶液进行预处理,固化体中的Zn和Cd浸出质量浓度分别为1.74 mg/L和0.87 mg/L,低于危险废物浸出毒性鉴别标准(GB 5085.3-2007)；当硫化渣粒径小于150 μm,石膏渣用量为20％,骨料用量为15％时,固化体的抗压强度达到最大值47.5 MPa,根据混凝土强度检验评定标准(GBJ 107-87),达到C47混凝土强度等级.
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| 关 键 词： | 硫固定法 重金属废渣 浸出毒性 抗压强度 |
Immobilization of heavy-metal containing waste residue using sulfur to make construction materials |
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| YANG Shao-hui,MIN Xiao-bo,CHAI Li-yuan,LIANG Yan-jie,JIANG Wan-shun.Immobilization of heavy-metal containing waste residue using sulfur to make construction materials[J].Journal of Central South University:Science and Technology,2011,42(11). |
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| Authors: | YANG Shao-hui MIN Xiao-bo CHAI Li-yuan LIANG Yan-jie JIANG Wan-shun |
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| Institution: | YANG Shao-hui,MIN Xiao-bo,CHAI Li-yuan,LIANG Yan-jie,JIANG Wan-shun (School of Metallurgical Science and Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | Based on the analysis of the leaching toxicity and compressive strength,the sulfuration slag and gypsum slag which were produced during the treatment process of waste acid in a smelter,were used as experimental materials.The optimal conditions for sulfur immobilization were studied.The results show that the leaching rate of sulfuration slag is higher than that of gypsum slag,and the leaching toxicity of zinc and cadmium is 1 547.0 mg/L and 104.4 mg/L,respectively.Increasing of sulfur content and adding of g... |
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| Keywords: | sulfur immobilization heavy-metal containing waste residue leaching toxicity compressive strength |
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