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The Extraction of Cr(VI) by a Flat Sheet Supported Liquid Membrane Using Alamine 336 as a Carrier

  • Research Article - Chemistry
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Abstract

Chromium compounds have received considerable attention because they have been used extensively in such industrial applications as electro-plating, steelmaking, tanning of leather goods, and as corrosion inhibitors. The use of flat sheet supported liquid membranes (FSSLMs) to remove metals from wastewaters has been actively undertaken by both the scientific and industrial communities. The present work deals with carrier-facilitated membrane transport of Cr(VI) from acidic media across a FSSLM using the organic extractant reagent Alamine 336. The efficiency of the membrane transport was optimized as a function of pH, diluent type, strip phase (NaOH) concentration, feed and strip phase mixing speed, extractant type and concentration, and support type. Various initial feed phase Cr(VI) concentrations were studied under the optimum conditions. At a 2,000 ppm optimum feed phase concentration, the FSSLM showed no significant loss in permeability and retained the same transport ability over 49 h. Under that condition, the extraction of Cr(VI) was found to be > 99% and the mass flux and permeation coefficient were calculated using related equations as 7.35 × 10−6 kg m−2 s and 7.88 × 10−6 m s−1, respectively.

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Authors and Affiliations

  1. Department of Chemistry, Sakarya University, 54110, Esentepe, Sakarya, Turkey

    Volkan Eyupoglu & Osman Tutkun

  2. Chemistry Department, Science and Lecture Faculty, Sakarya University, 54187, Esentepe, Sakarya, Turkey

    Volkan Eyupoglu

Authors
  1. Volkan Eyupoglu
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  2. Osman Tutkun
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Correspondence to Volkan Eyupoglu.

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Eyupoglu, V., Tutkun, O. The Extraction of Cr(VI) by a Flat Sheet Supported Liquid Membrane Using Alamine 336 as a Carrier. Arab J Sci Eng 36, 529–539 (2011). https://doi.org/10.1007/s13369-011-0057-5

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  • DOI: https://doi.org/10.1007/s13369-011-0057-5

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