Inorganic Chemicals Industry >

2024 , Vol. 56 >Issue 9: 24 - 33

DOI: https://doi.org/10.19964/j.issn.1006-4990.2024-0009

Reviews and Special Topics

A comprehensive review of molybdenum removal by coagulation in water treatment

  • GAN Yonghai ,
  • DING Xinhe ,
  • DING Chengcheng ,
  • LUO Jun ,
  • XU Bin ,
  • KONG Ming ,
  • SONG Xiaojie ,
  • CUI Yibin
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  • 1.Nanjing Institute of Environmental Sciences，MEE，Nanjing 210042，China
    2.MOE Key Laboratory of Groundwater Circulation and Environmental Evolution，China University of Geosciences（Beijing），Beijing 100083，China
    3.Nanjing University of Information Science and Technology，Nanjing 210044，China
    4.SINOPEC Yangzi Petrochemical Co.，Ltd.，Nanjing 210018，China

Received date: 2024-01-07

  Online published: 2024-02-19

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Abstract

With the rapid development of industries，the demand for molybdenum（Mo） in steel，petrochemical engineering，electronics and other industries is increasing day by day，and the large-scale mining of Mo ore has brought serious water pollution problems.Mo-polluted water bodies posed a great threat to human health and ecosystem stability.In the treatment of Mo-polluted groundwater，surface water and Mo-containing wastewater，economical and efficient coagulation treatment technology was most widely used.On the basis of analyzing the water pollution status and treatment technology of Mo，the research progress of coagulants，main factors，coagulation process and coagulation mechanism for Mo removal were reviewed in this paper.Iron salt was the most widely used coagulant for Mo removal，and Mo contaminants could be removed under complex water matrix conditions within the optimized pH range of 4.0~5.0.The effects of alkalinity，hardness，phosphates，and organic pollutants in water on Mo removal by coagulation should be paied more attention.The multi-stage coagulation process showed remarkable effects in the actual treatment of Mo-containing water.Electrostatic adsorption，surface complexation and sweep flocculation were the main mechanism for Mo removal by coagulation.In addition，the scientific research and engineering application of Mo removal by coagulation technology were summarized and prospected，providing useful references for the water pollution control of Mo.

Key words： coagulation; flocculation; molybdenum removal; ferric salt; aluminum salt

Cite this article

GAN Yonghai , DING Xinhe , DING Chengcheng , LUO Jun , XU Bin , KONG Ming , SONG Xiaojie , CUI Yibin . A comprehensive review of molybdenum removal by coagulation in water treatment[J]. Inorganic Chemicals Industry, 2024 , 56(9) : 24 -33 . DOI: 10.19964/j.issn.1006-4990.2024-0009

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