工业水处理 ›› 2021, Vol. 41 ›› Issue (2): 33-37. doi: 10.11894/iwt.2020-0233

• 试验研究 • 上一篇    下一篇

湿法冶金MVR废水中溶解性有机溶剂和萃取剂的去除

李恺雄1,2(),池勇志1,2,付翠莲3,刘芷源1,2   

  1. 1. 天津城建大学环境与市政工程学院, 天津 300384
    2. 天津市水质科学与技术重点实验室, 天津 300384
    3. 天津城建大学工程实训中心, 天津 300384
  • 收稿日期:2020-07-24 出版日期:2021-02-20 发布日期:2021-02-25
  • 作者简介:李恺雄(1994-), 硕士研究生。电话: 17624029370, E-mail: lkx765565752@163.com
  • 基金资助:
    “十三五”国家重大科技专项(2017ZX07107-002-03)

Removal of dissolved organic solvents and extractants in wastewater of hydrometallurgical MVR

Kaixiong Li1,2(),Yongzhi Chi1,2,Cuilian Fu3,Zhiyuan Liu1,2   

  1. 1. School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China
    2. Tianjin Key Laboratory of Water Quality Science and Technology, Tianjin 300384, China
    3. Engineering Practical Teaching Center, Tianjin Chengjian University, Tianjin 300384, China
  • Received:2020-07-24 Online:2021-02-20 Published:2021-02-25

摘要:

研究了不同种类颗粒活性炭(GAC)对湿法冶金MVR废水中特定有机物的去除效果和去除机理。结果表明:相比于Fenton法以及硅胶、硅藻土、膨润土吸附法,颗粒活性炭吸附法对废水中特定有机物的去除率最高,超过90%。GAC对废水中特定有机物的吸附符合Freundlich模型,属于优惠吸附。其中,优适煤制GAC的吸附能力最大,饱和吸附量达到35.98 mg/g(以TOC计),在最佳工况下其对有机物的去除率超过95%。

关键词: 湿法冶金, MVR废水, 有机物, 颗粒活性炭

Abstract:

The removal effect and mechanism of different types of granular activated carbon(GAC) on specific organics in hydrometallurgical MVR wastewater were studied. The results showed that granular activated carbon adsorption method had the highest removal rate of specific organic matter in wastewater, exceeding 90%, compared with Fenton method and silica gel, diatomaceous earth, bentonite adsorption method. The adsorption of specific organics in wastewater by GAC conformed to the Freundlich model and belonged to preferential adsorption. Among of them, Youshi coal-based GAC had the largest adsorption capacity, with a saturated adsorption capacity of 35.98 mg/g (calculated as TOC), and its removal rate of organic matter exceeded 95% under the best conditions.

Key words: hydrometallurgy, MVR wastewater, organic matter, granular activated carbon

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