Integrated process for the removal of emulsified oils from effluents in the steel industry

Benito, J M; Rios, G; Gutierrez, B; Pazos, C; Coca, J

doi:10.1081/SS-100100820

Title: Integrated process for the removal of emulsified oils from effluents in the steel industry

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Abstract

Emulsified oils contained in aqueous effluents from cold-rolling mills of the steel industry can be effectively removed via an integrated process consisting of a coagulation/flocculation stage followed by ultrafiltration of the resulting aqueous phase. The effects of CaCl{sub 2}, NaOH, and lime on the stability of different industrial effluents were studied in the coagulation experiments. The flocculants tested were inorganic prehydrolyzed aluminum salts and quaternary polyamines. Ultrafiltration of the aqueous phase from the coagulation/flocculation stage was carried out in a stirred cell using Amicon PM30 and XM300 organic membranes. Permeate fluxes were measured for industrial effluents to which the indicated coagulants and flocculants had been added. Oil concentrations in the permeate were 75% lower than the limits established by all European Union countries. Complete regeneration of the membrane was accomplished with an aqueous solution of a commercial detergent.

Authors:: Benito, J M; Rios, G; Gutierrez, B; Pazos, C; Coca, J

Publication Date:: Mon Nov 01 00:00:00 EST 1999

Research Org.:: Univ. of Oviedo (ES)

OSTI Identifier:: 20017407

Resource Type:: Journal Article

Journal Name:: Separation Science and Technology

Additional Journal Information:: Journal Volume: 34; Journal Issue: 15; Other Information: PBD: Nov 1999; Journal ID: ISSN 0149-6395

Country of Publication:: United States

Language:: English

Subject:: 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 01 COAL, LIGNITE, AND PEAT; METAL INDUSTRY; STEELS; WASTE WATER; OILS; FLOCCULATION; ULTRAFILTRATION; MEMBRANES; REGENERATION; COAL INDUSTRY

Citation Formats


                    Benito, J M, Rios, G, Gutierrez, B, Pazos, C, and Coca, J. Integrated process for the removal of emulsified oils from effluents in the steel industry.  United States: N. p., 1999. 
        Web.  doi:10.1081/SS-100100820.

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                    Benito, J M, Rios, G, Gutierrez, B, Pazos, C, & Coca, J. Integrated process for the removal of emulsified oils from effluents in the steel industry.  United States.  https://doi.org/10.1081/SS-100100820

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                    Benito, J M, Rios, G, Gutierrez, B, Pazos, C, and Coca, J. 1999.  
        "Integrated process for the removal of emulsified oils from effluents in the steel industry".  United States.  https://doi.org/10.1081/SS-100100820.

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@article{osti_20017407,

  title        = {Integrated process for the removal of emulsified oils from effluents in the steel industry},

  author       = {Benito, J M and Rios, G and Gutierrez, B and Pazos, C and Coca, J},

  abstractNote = {Emulsified oils contained in aqueous effluents from cold-rolling mills of the steel industry can be effectively removed via an integrated process consisting of a coagulation/flocculation stage followed by ultrafiltration of the resulting aqueous phase. The effects of CaCl{sub 2}, NaOH, and lime on the stability of different industrial effluents were studied in the coagulation experiments. The flocculants tested were inorganic prehydrolyzed aluminum salts and quaternary polyamines. Ultrafiltration of the aqueous phase from the coagulation/flocculation stage was carried out in a stirred cell using Amicon PM30 and XM300 organic membranes. Permeate fluxes were measured for industrial effluents to which the indicated coagulants and flocculants had been added. Oil concentrations in the permeate were 75% lower than the limits established by all European Union countries. Complete regeneration of the membrane was accomplished with an aqueous solution of a commercial detergent.},

  doi          = {10.1081/SS-100100820},

  url          = {https://www.osti.gov/biblio/20017407},
  journal      = {Separation Science and Technology},

  issn         = {0149-6395},

  number       = 15,

  volume       = 34,

  place        = {United States},

  year         = {Mon Nov 01 00:00:00 EST 1999},

  month        = {Mon Nov 01 00:00:00 EST 1999}

}

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