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Removal of Chromium by Coagulation-Dissolved Air Flotation System Using Ferric Chloride and Poly Aluminum Chloride (PAC) as Coagulants

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Abstract

In this study, dissolved air flotation (DAF) was examined as a possible treatment method for the removal of chromium from aqueous solution and plating wastewater. Two coagulants, ferric chloride and poly aluminum chloride (PAC), were used for pretreatment of wastewater. Maximum removal of chromium was achieved for poly aluminum chloride (98 %). Artificial neural network was used for the prediction of the DAF system. The best neuron used for the prediction of chromium removal percentage of interpolated wastewater was 6 %. The mean score error and the coefficient correlation were 0.0007542 and 0.997, respectively.

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Authors and Affiliations

  1. Department of Chemical Engineering, North Tehran Branch, Islamic Azad University, PO Box 19585/936, Tehran, Iran

    Akbar Esmaeili & Elahe Hejazi

  2. Department of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran

    Amir Hesam Hassani

Authors
  1. Akbar Esmaeili
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  2. Elahe Hejazi
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  3. Amir Hesam Hassani
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Correspondence to Akbar Esmaeili.

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Esmaeili, A., Hejazi, E. & Hassani, A.H. Removal of Chromium by Coagulation-Dissolved Air Flotation System Using Ferric Chloride and Poly Aluminum Chloride (PAC) as Coagulants. Water Air Soil Pollut 225, 2140 (2014). https://doi.org/10.1007/s11270-014-2140-5

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  • DOI: https://doi.org/10.1007/s11270-014-2140-5

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