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Assessment of the biosorption characteristics of lychee (Litchi chinensis) peel waste for the removal of Acid Blue 25 dye from water.

Abstract

The aim of this study was to examine the adsorption potential of lychee (Litchi chinensis) peel waste for the removal of Acid Blue 25 dye from aqueous solutions. The adsorption was studied as a function of contact time, initial dye concentration and temperature by batch method. Equilibrium sorption isotherms showed that the lychee peel adsorbent possessed a high affinity and sorption capacity for Acid Blue 25, with a monolayer sorption capacity of ca. 200 mg g(-1). The equilibrium adsorption data were well described by the Langmuir model. Kinetic studies revealed that the present system of dye adsorption on lychee peel adsorbent could be described more favourably by the pseudo-second-order kinetic model. The thermodynamic parameters, namely free energy (deltaG degrees), enthalpy (deltaH degrees) and entropy (deltaS degrees) changes, were determined for the process. The results of the present study suggest that lychee peel waste can be used beneficially as an adsorbent in treating industrial effluents containing dyes.

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  • Publisher Full Text
  • Authors+Show Affiliations

    ,

    Environmental Science and Technology Division, CBRI, Roorkee - 247 667, India. amit_b10@yahoo.co.in

    Source

    Environmental technology 31:1 2010 Jan pg 97-105

    MeSH

    Adsorption
    Anthraquinones
    Biodegradation, Environmental
    Color
    Fruit
    Industrial Waste
    Litchi
    Ultrafiltration
    Water Pollutants, Chemical
    Water Purification

    Pub Type(s)

    Journal Article
    Research Support, Non-U.S. Gov't

    Language

    eng

    PubMed ID

    20232683

    Citation

    * When formatting your citation, note that all book, journal, and database titles should be italicized* Article titles in AMA citation format should be in sentence-case
    TY - JOUR T1 - Assessment of the biosorption characteristics of lychee (Litchi chinensis) peel waste for the removal of Acid Blue 25 dye from water. AU - Bhatnagar,Amit, AU - Minocha,A K, PY - 2010/3/18/entrez PY - 2010/3/18/pubmed PY - 2010/4/17/medline SP - 97 EP - 105 JF - Environmental technology JO - Environ Technol VL - 31 IS - 1 N2 - The aim of this study was to examine the adsorption potential of lychee (Litchi chinensis) peel waste for the removal of Acid Blue 25 dye from aqueous solutions. The adsorption was studied as a function of contact time, initial dye concentration and temperature by batch method. Equilibrium sorption isotherms showed that the lychee peel adsorbent possessed a high affinity and sorption capacity for Acid Blue 25, with a monolayer sorption capacity of ca. 200 mg g(-1). The equilibrium adsorption data were well described by the Langmuir model. Kinetic studies revealed that the present system of dye adsorption on lychee peel adsorbent could be described more favourably by the pseudo-second-order kinetic model. The thermodynamic parameters, namely free energy (deltaG degrees), enthalpy (deltaH degrees) and entropy (deltaS degrees) changes, were determined for the process. The results of the present study suggest that lychee peel waste can be used beneficially as an adsorbent in treating industrial effluents containing dyes. SN - 0959-3330 UR - https://www.unboundmedicine.com/medline/citation/20232683/Assessment_of_the_biosorption_characteristics_of_lychee__Litchi_chinensis__peel_waste_for_the_removal_of_Acid_Blue_25_dye_from_water_ L2 - http://www.tandfonline.com/doi/full/10.1080/09593330903370000 DB - PRIME DP - Unbound Medicine ER -