| 二次飞灰理化特性及其Pb和Cu赋存形态 |
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| 引用本文： | 李松,贾艳萍,张兰河,吴昊,刘宏博,汪群慧,王琪,田书磊.二次飞灰理化特性及其Pb和Cu赋存形态[J].中国环境科学,2019,39(4):1627-1632. |
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| 作者姓名： | 李松 贾艳萍 张兰河 吴昊 刘宏博 汪群慧 王琪 田书磊 |
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| 作者单位： | 1. 东北电力大学化学工程学院, 吉林吉林 132012;
2. 中国环境科学研究院土壤与固体废物研究所, 北京 100012;
3. 北京科技大学能源与环境工程学院, 北京 100083;
4. 哈尔滨工业大学环境学院, 黑龙江 哈尔滨 150001 |
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| 基金项目： | 国家自然科学基金资助项目（51178440）;吉林省教育厅"十三五"科学技术研究项目（JJKH20180454KJ） |
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| 摘 要： | 利用高温管式电炉,分别收集了1000,1150和1250℃条件下的二次飞灰,并利用XRF、EDX、XRD等手段对二次飞灰的理化特性及其重金属Pb和Cu的赋存形态进行了分析.结果表明：二次飞灰主要由重金属氯化物组成,重金属Pb和Cu的质量百分比分别为8.92%~10.11%和3.74%~5.73%;二次飞灰微观形貌分为不规则形状聚合体和多孔团絮集合体2种;二次飞灰极易吸潮,干燥的二次飞灰呈棕黄色,吸潮后逐渐变为黄色,最后变为糊状的蓝色浆体.
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| 关 键 词： | 二次飞灰 重金属 挥发 理化特性 赋存形态 |
| 收稿时间： | 2018-09-04 |
The physicochemical properties of second fly ash and its speciation of Pb and Cu |
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| LI Song,JIA Yan-ping,ZHANG Lan-he,WU Hao,LIU Hong-bo,WANG Qun-hui,WANG Qi,TIAN Shu-lei.The physicochemical properties of second fly ash and its speciation of Pb and Cu[J].China Environmental Science,2019,39(4):1627-1632. |
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| Authors: | LI Song JIA Yan-ping ZHANG Lan-he WU Hao LIU Hong-bo WANG Qun-hui WANG Qi TIAN Shu-lei |
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| Affiliation: | 1. College of Chemical Engineering, University of Northeast Electric Power, Jilin 132012, China;
2. Institute of Soil and Solid Waste, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;
3. College of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China;
4. College of Environment, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | The physicochemical properties of the second fly ash and its speciation of Pb and Cu were analyzed by using XRF, EDX, XRD on samples of second fly ashes collected under temperature of 1000, 1150 and 1250℃ from high temperature rube furnaces. The results show that second fly ash was mainly composed of heavy metal chloride, and the mass percentages of heavy metals of Pb and Cu were 8.92%~10.11% and 3.74%~5.73%, respectively. The microscopic morphology of second fly ash was irregular shaped polymer and porous cluster flocculation. The second fly ash could absorb moisture easily. The dry second fly ash was brownish-yellow originally, gradually became yellow after absorbing moisture, and finally turned into a paste of blue slurry. |
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| Keywords: | second fly ash heavy metal volatilization physicochemical properties speciation |
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