无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2025, Vol. 57 ›› Issue (2): 120-129.doi: 10.19964/j.issn.1006-4990.2024-0079

• 环境·健康·安全 • 上一篇    下一篇

双极膜电渗析资源化巯基乙酸钠废水再生巯基乙酸的研究

张莉1,2,4(), 娄玉峰2,3, 张委2, 刘方旺1, 蓝靖3, 赵宗山3, 付昆明4()   

  1. 1.潍坊职业学院化学工程学院,潍坊市高盐工业废水资源化重点实验室,山东 潍坊 262737
    2.山东天维膜技术有限公司,山东 潍坊 261061
    3.青岛大学环境科学与工程学院,山东 青岛 266071
    4.北京建筑大学环境与能源工程学院,北京 100044
  • 收稿日期:2024-02-04 出版日期:2025-02-10 发布日期:2025-02-20
  • 通讯作者: 付昆明(1981— ),博士,副教授,主要研究方向为工业废水化学处理和生活污水生物处理技术;E-mail:fukunming@163.com
  • 作者简介:张莉(1980— ),博士,副教授,主要研究方向为高盐废水资源化应用研究;E-mail:2422970506@qq.com
  • 基金资助:
    国家自然科学基金项目(21976185);国家重点研发计划项目(2021YFB3801400);潍坊市科技发展计划项目(2021GX016);潍坊职业学院首届博士科研基金项目(潍职院教[2021]5号)

Research of regeneration of thioglycolic acid by bipolar membrane electrodialysis using sodium thioglycolate wastewater as resource

ZHANG Li1,2,4(), LOU Yufeng2,3, ZHANG Wei2, LIU Fangwang1, LAN Jing3, ZHAO Zongshan3, FU Kunming4()   

  1. 1.College of Chemical Engineering,Weifang Key Laboratory of High-Salinity Industrial Wastewater Resource Utilization,Weifang Vocational College,Weifang 262737,China
    2.Shandong Tianwei Membrane Technology Co. ,Ltd. ,Weifang 261061,China
    3.School of Environmental Science and Engineering,Qingdao University,Qingdao 266071,China
    4.School of Environment and Energy Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China
  • Received:2024-02-04 Published:2025-02-10 Online:2025-02-20

摘要:

巯基乙酸钠是硫氨酯尾液的主要成分,因其高毒性、高盐、高化学需氧量的特点,使硫氨酯尾液成为一类极难处理的化工生产废水。通常采用萃取、过滤、酸化和蒸馏等复合工艺进行处理,但这种处理方法存在工艺复杂、成本高及可能产生二次污染等问题。为解决巯基乙酸钠废水资源化利用的难题,采用三隔室双极膜电渗析(Bipolar Membrane Electrodialysis Device,BMED)装置,以巯基乙酸钠转化率、电流效率、平均膜对电压及能耗等作为评价指标,考察操作反应时间、反应温度、电流密度、膜间距对BMED资源化巯基乙酸钠废水处理过程的影响。结果表明,在反应时间为75 min、电流密度为400 A/m2、反应温度为40 ℃、膜间距为50 μm的优化运行条件下,BMED的巯基乙酸钠转化率为98.32%,电流效率达到86.01%,生产能耗为93.54 kW·h/t。该研究结果可为巯基乙酸钠废水生产巯基乙酸提供新的工艺思路。

关键词: 双极膜, 电渗析, 资源化, 巯基乙酸钠废水, 巯基乙酸

Abstract:

A lot of sodium thioglycolate as the main constituent of sulfur ammonia ester tail liquid is difficult to treat due to its high toxic,high salinity and high COD(Chemical Oxygen Demand) properties.The traditional disposal composite process of extraction-filtration-acidification-distillation exsits complex processes,high disposal costs and secondary pollution.In order to solve the resource utilization of sodium thioglycolate wastewater,the bipolar membrane electrodialysis device(BMED) with three-compartment configuration was used,which could convert salts into corresponding acids and bases.The effects of the reaction time,the reaction temperature,current density and plate thickness on the conversion efficiency,current efficiency,membrane voltage,energy consumption were investigated.The experiments showed that the optimum experimental conditions were 75 min,40 ℃,400 A/m2 and 50 μm.Under those conditions,the conversion rate of sodium thioglycolate was up to 98.32%,the current efficiency was 86.01%,and the energy consumption was 93.54 kW·h/t.The results can provide a reference for a new process idea for the production of thioglycolic acid from sodium thioglycolate wastewater in industrial production.

Key words: bipolar membrane, electrodialysis, regeneratio, sodium thioglycolate wastewater, thioglycolic acid

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