| 锌冶炼污酸处理的生命周期评价（英文） |
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| 引用本文： | 胡应燕,黎敏,吴卫国,柯勇,刘鲁静,王雪亮. 锌冶炼污酸处理的生命周期评价（英文）[J]. 中国有色金属学会会刊, 2022, 32(11): 3822-3834. DOI: 10.1016/S1003-6326(22)66061-8 |
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| 作者姓名： | 胡应燕 黎敏 吴卫国 柯勇 刘鲁静 王雪亮 |
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| 作者单位： | 1. 中国恩菲工程技术有限公司;2. 中南大学冶金与环境学院;3. 国家重金属污染防治工程技术研究中心;4. 中国科学院文献情报中心;5. 中国科学院大学 |
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| 基金项目： | financially supported by the National Key R&D Program of China (Nos. 2018YFC1903304, 2019YFC1907405)；;National Natural Science Foundation of China (No. 51904354)； |
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| 摘 要： | 采用生命周期评价方法对锌冶炼过程中的两种污酸处置工艺进行评价和对比。结果表明，气液硫化法的环境影响主要为人体毒性、非生物资源耗竭和全球变暖潜值，这些环境问题主要由中和-蒸发-结晶与电渗析单元造成；同时传统石灰石中和法中的硫化单元也是环境影响的主要来源，且石灰石中和法的总环境影响比气液硫化法高很多。结合敏感性分析发现，气液硫化法和石灰石中和法敏感度因子均为电和硫化钠(60%)，且石灰石中和法处置单位污酸的总成本约为气液硫化法的27倍。
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| 关 键 词： | 锌冶炼 污酸处理 生命周期评价 环境影响 |
| 收稿时间： | 2021-09-02 |
Life cycle assessment for waste acid treatment in zinc smelting |
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| Affiliation: | 1. China Enfi Engineering Corporation, Beijing 100038, China;2. School of Metallurgy and Environment, Central South University, Changsha 410083, China;3. Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution, Changsha 410083, China;4. National Science Library, Chinese Academy of Sciences, Beijing 100190, China;5. University of Chinese Academy of Science, Beijing 100049, China |
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| Abstract: | Lift cycle assessment (LCA) methodology was applied to evaluating and comparing two waste acid disposal processes in zinc smelting. The results indicate that environmental impacts of gas—liquid vulcanization technologies are human toxicity, abiotic depletion potential, and global warming risk, which are mainly caused in neutralizing— evaporating—crystallization unit and electrodialysis unit. As for traditional lime neutralization method, vulcanization unit is the main factor. In this regard, the total environmental impact of traditional lime neutralization method is much higher than that of gas—liquid vulcanization technologies. Furthermore, the sensitive analysis shows that electricity and sodium sulfide (60%) are sensitive factors in two waste acid disposal technologies. In addition, the total cost of disposing a functional unit waste acid in traditional lime neutralization process is nearly 27 times that of the gas—liquid vulcanization waste acid disposal technologies. |
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| Keywords: | zinc smelting waste acid treatment life cycle assessment environmental impact |
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