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王德峰, 彭先佳, 张卫民, 李亦然, 姜力文, 刘杰. 硫化氢净化强酸性高砷废液[J]. 环境化学, 2015, 34(12): 2233-2238. doi: 10.7524/j.issn.0254-6108.2015.12.2015091502
引用本文: 王德峰, 彭先佳, 张卫民, 李亦然, 姜力文, 刘杰. 硫化氢净化强酸性高砷废液[J]. 环境化学, 2015, 34(12): 2233-2238. doi: 10.7524/j.issn.0254-6108.2015.12.2015091502
shu
WANG Defeng, PENG Xianjia, ZHANG Weimin, LI Yiran, JIANG Liwen, LIU Jie. Purification of highly acidic wastewater with high arsenic concentration using hydrogen sulfide[J]. Environmental Chemistry, 2015, 34(12): 2233-2238. doi: 10.7524/j.issn.0254-6108.2015.12.2015091502
Citation: WANG Defeng, PENG Xianjia, ZHANG Weimin, LI Yiran, JIANG Liwen, LIU Jie. Purification of highly acidic wastewater with high arsenic concentration using hydrogen sulfide[J]. Environmental Chemistry, 2015, 34(12): 2233-2238. doi: 10.7524/j.issn.0254-6108.2015.12.2015091502
shu

硫化氢净化强酸性高砷废液

  • 1.

    东华理工大学水资源与环境工程学院, 南昌, 330013;

  • 2.

    中国科学院生态环境研究中心, 工业污水处理与 资源化北京市重点实验室, 北京, 100085;

  • 3.

    山东大学(威海)海洋学院, 威海, 264209;

  • 4.

    中国航天建设集团有限公司济南设计研究院, 济南, 250000

  • 基金项目:

    国家自然科学基金(41273123)资助.

Purification of highly acidic wastewater with high arsenic concentration using hydrogen sulfide

  • 1.

    School of Water Resources & Environmental Engineering, East China Institute of Technology, Nanchang, 330013, China;

  • 2.

    Beijing Key Lab of Industrial Wastewater Treatment and Reuse, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China;

  • 3.

    Marine College, Shandong University(Weihai), Weihai, 264209, China;

  • 4.

    Jinan Design Academy, China Aerospace Construction Group Co., Ltd, Jinan, 250000, China

  • Fund Project:

  • 摘要: 本研究采用硫化氢为除砷药剂,向强酸性废液中通入硫化氢气体,实现砷在强酸性条件下直接去除.实验优化了反应压力、反应温度、硫酸浓度等反应条件,对沉淀絮体以及反应沉渣进行了表征,研究结果表明,在反应压力为0.22 MPa、反应温度低于55 ℃条件下,硫酸浓度在2%-20%范围内的含砷废液均可达良好除砷效果,废液中砷浓度可由500 mg·L-1降到0.5 mg·L-1;废液酸度升高有利于形成密实絮体颗粒;反应产物主要为硫化砷.
    Abstract: In this work, H2S was employed for arsenic removal from highly acidic wastewater with arsenic. In this process, arsenic can be removed directly under highly acidic condition. Influencing factors of the reaction such as pressure, temperature and H2SO4 concentration in the wastewater were optimized and the floc and sludge were characterized. Results showed that, for acidic wastewater with H2SO4 concentration of 2%-20%, the highest arsenic removal efficiency was achieved under pressure of 0.22 MPa and temperature of below 55 ℃. In that case, arsenic concentration in the wastewater decreased from 500 mg·L-1 to 0.5 mg·L-1. Besides, increase in H2SO4 concentration of the wastewater benefitced the formation of dense floc particles. The main reaction product was indentified to be As2S5.
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  • 收稿日期:  2015-09-15
  • 刊出日期:  2015-12-15
王德峰, 彭先佳, 张卫民, 李亦然, 姜力文, 刘杰. 硫化氢净化强酸性高砷废液[J]. 环境化学, 2015, 34(12): 2233-2238. doi: 10.7524/j.issn.0254-6108.2015.12.2015091502
引用本文: 王德峰, 彭先佳, 张卫民, 李亦然, 姜力文, 刘杰. 硫化氢净化强酸性高砷废液[J]. 环境化学, 2015, 34(12): 2233-2238. doi: 10.7524/j.issn.0254-6108.2015.12.2015091502
shu
WANG Defeng, PENG Xianjia, ZHANG Weimin, LI Yiran, JIANG Liwen, LIU Jie. Purification of highly acidic wastewater with high arsenic concentration using hydrogen sulfide[J]. Environmental Chemistry, 2015, 34(12): 2233-2238. doi: 10.7524/j.issn.0254-6108.2015.12.2015091502
Citation: WANG Defeng, PENG Xianjia, ZHANG Weimin, LI Yiran, JIANG Liwen, LIU Jie. Purification of highly acidic wastewater with high arsenic concentration using hydrogen sulfide[J]. Environmental Chemistry, 2015, 34(12): 2233-2238. doi: 10.7524/j.issn.0254-6108.2015.12.2015091502
shu

硫化氢净化强酸性高砷废液

  • 1.  东华理工大学水资源与环境工程学院, 南昌, 330013;
  • 2.  中国科学院生态环境研究中心, 工业污水处理与 资源化北京市重点实验室, 北京, 100085;
  • 3.  山东大学(威海)海洋学院, 威海, 264209;
  • 4.  中国航天建设集团有限公司济南设计研究院, 济南, 250000
  • 收稿日期:  2015-09-15
基金项目:

国家自然科学基金(41273123)资助.

摘要: 本研究采用硫化氢为除砷药剂,向强酸性废液中通入硫化氢气体,实现砷在强酸性条件下直接去除.实验优化了反应压力、反应温度、硫酸浓度等反应条件,对沉淀絮体以及反应沉渣进行了表征,研究结果表明,在反应压力为0.22 MPa、反应温度低于55 ℃条件下,硫酸浓度在2%-20%范围内的含砷废液均可达良好除砷效果,废液中砷浓度可由500 mg·L-1降到0.5 mg·L-1;废液酸度升高有利于形成密实絮体颗粒;反应产物主要为硫化砷.

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