Treatment of highly concentrated dye solution by coagulation/flocculation-sand filtration and nanofiltration

A. Y. Zahrim, Nidal Hilal

    Research output: Contribution to journalArticle

    Abstract

    Treatment of highly concentrated C.I. Acid Black 210 dye solution using direct coagulation/flocculation-sand filtration (without sedimentation) and nanofiltration has been investigated in this paper. It was found that none of the treatments were able to fully decolourise the dye solution, but nanofiltration permeate quality was better, based on colour, residual dye, pH, and total organic carbon. The red colour for the sand filtration filtrate might be due to the formation of stable aluminium-sulphonic acid complexes. The sand filtration breakthrough after coagulation/flocculation is estimated at around 45. min. For nanofiltration of highly concentrated dye (>1000. mg/l), the separation factor analysis had confirmed that the mechanism of dye molecules attached to the membrane surface is irreversible adsorption.

    Original languageEnglish (US)
    Pages (from-to)23-34
    Number of pages12
    JournalWater Resources and Industry
    Volume3
    DOIs
    StatePublished - Sep 1 2013

    Fingerprint

    flocculation
    coagulation
    factor analysis
    dye
    sand
    acid
    total organic carbon
    aluminum
    sedimentation
    membrane
    adsorption

    Keywords

    • Acid black 210
    • Coagulation/flocculation
    • Decolorization
    • Nanofiltration
    • Sand filtration

    ASJC Scopus subject areas

    • Geography, Planning and Development
    • Water Science and Technology

    Cite this

    Treatment of highly concentrated dye solution by coagulation/flocculation-sand filtration and nanofiltration. / Zahrim, A. Y.; Hilal, Nidal.

    In: Water Resources and Industry, Vol. 3, 01.09.2013, p. 23-34.

    Research output: Contribution to journalArticle

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