| 模拟雨水对工业烧渣中重金属浸出特性的研究 |
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| 引用本文： | 徐志高,张臻悦,池汝安,何正艳,吴明.模拟雨水对工业烧渣中重金属浸出特性的研究[J].环境科学与技术,2011(Z2):42-46. |
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| 作者姓名： | 徐志高 张臻悦 池汝安 何正艳 吴明 |
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| 作者单位： | 武汉工程大学绿色化工过程教育部重点实验室 |
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| 基金项目： | 长江学者和创新团队发展计划项目(IRT0974);973前期研究专项项目(2011CB411900) |
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| 摘 要： | 采用《固体废物浸出毒性浸出方法—水平振荡法》(HJ557-2010)对工业固体烧渣中重金属进行浸出试验研究,并利用火焰原子吸收分光光度法分别测定了其浸出液中的铅、铬、锌、镉、铜、铁和镍等7种重金属,用可见分光光度法测定砷,考察了模拟酸雨的pH值、液固比和浸取时间等因素对烧渣中重金属的浸出试验的影响,实验结果表明烧渣中各重金属的浸出值均未超出国家标准《危险废物鉴别标准—浸出毒性鉴别》(GB5085.3-2007)中的允许值,可直接作为建筑材料或路基材料使用。
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| 关 键 词： | 模拟雨水 重金属 烧渣 酸浸 |
Experimental Study on Leaching Toxicity of Heavy Metals from Industry Burned Slag Under Simulated Rain |
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| XU Zhi-gao,ZHANG Zhen-yue,CHI Ru-an,HE Zheng-yan,WU Ming.Experimental Study on Leaching Toxicity of Heavy Metals from Industry Burned Slag Under Simulated Rain[J].Environmental Science and Technology,2011(Z2):42-46. |
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| Authors: | XU Zhi-gao ZHANG Zhen-yue CHI Ru-an HE Zheng-yan WU Ming |
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| Institution: | (Key Laboratory for Green Chemical Process of Ministry of Education,Wuhan Institute of Technology,Wuhan 430073,China) |
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| Abstract: | The leaching toxicity tests of heavy metals from industry burned slag were carried out in accordance with "Solid waste extraction procedure for leaching toxicity horizontal vibration method(HJ557-2010)" At the same time,the content of lead,chromium,zinc,cadmium,copper,iron and nickel was determined by flame atomic absorption spectrophotometry,respectively,and arsenic by visible spectrophotometry.The leaching toxicity of heavy metals has been investigated experimentally as a function of pH,liquid-solid ratio and leading time,respectively.The results show that the leached heavy metals are remained below the limits of Identification standards for hazardous wastes identification for extraction toxicity(GB5085.3-2007),and the industry burned slag can be used as building materials and roadbed materials. |
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| Keywords: | simulated rain heavy metals cinder acid leaching |
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