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The Adsorptive Properties of Fired Clay Pellets for the Removal of Phosphate in Wastewater Treatment

  • Augustine Ifelebuegu
  • , Adrian Wood
  • , Mark Bateman
  • , Uduakobong Aniedi Edet

    Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding › peer-review

    Abstract

    Removal of phosphate in wastewater treatment is crucial to reducing nutrient enrichment and eutrophication of aquatic bodies. This study explored the potential of fired clay pellets for use in phosphate removal during wastewater treatment. The mechanism of removal was evaluated in a batch adsorption study under different experimental conditions. Fired clay pellets were found to be effective in the adsorptive removal of phosphate from aqueous solution with a maximum adsorption capacity of 144mg/g. The experimental data showed a good fit to the pseudo-first-order kinetic model indicating a physical nature of the sorption process and also followed Dubinin-Radushkeivich Isotherm model. Adsorption of phosphate favoured acidic pH with optimum removal at pH 3-4. The values of Gibbs free energy (-16.5 kJ/mol), enthalpy (-8.87 kJ/mol) indicated adsorption was spontaneous and exothermic. The mechanism was found to be predominantly physisorption supported by some diffusion.
    Original languageEnglish
    Title of host publicationFourth International Conference on Advances in Bio-Informatics, Bio-Technology and Environmental Engineering - ABBE
    Place of PublicationNew York
    PublisherInstitute of Research Engineers and Doctors
    Pages15-21
    Number of pages6
    ISBN (Print)978-1-63248-091-0
    DOIs
    Publication statusPublished - 2016
    EventFourth International Conference on Advances in Bio-Informatics, Bio-Technology and Environmental Engineering - Birmingham City University, Birmingham, United Kingdom
    Duration: 17 Mar 2016 → 18 Mar 2016
    Conference number: 4

    Conference

    ConferenceFourth International Conference on Advances in Bio-Informatics, Bio-Technology and Environmental Engineering
    Abbreviated titleABBE 2016
    Country/TerritoryUnited Kingdom
    CityBirmingham
    Period17/03/16 → 18/03/16

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