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    Application of a homogeneously sulphonated polystyrene membrane in the purification of waste water

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    Mugobera_Application_ of_ a_ homogeneously_ sulphonated_ polystyrene_ membrane_ in_ the_ purification_ of_ waste_ water .pdf (1.329Mb)
    Date
    2016-11
    Author
    Mugobera, Sharon
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    Abstract
    The homogeneous sulphonation of waste polystyrene and its subsequent use in waste water purification was studied. The targeted waste was white food trays collected from roadsides, bins and waste dumps. They were shredded and sulphonated using acetyl sulphate thereby converting them into adsorbent material. The pH, electrical conductivity, water uptake, ion exchange capacity and the degree of sulphonation were evaluated for each sample produced. To confirm sulphonation the Fourier Transform Infrared Spectroscopy (FTIR) was used. The modified polymer was tested for its effectiveness in the removal of heavy metals from water. The Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-OES) was used to test for the concentrations of residual metals (chromium, cadmium and manganese) after batch adsorption experiments were carried out. The sulphonated polymer provided high purification of waste water by reducing the concentrations of cadmium from 10ppm to 2.30 ppm and manganese from 10 ppm to 1.53 ppm respectively. This is comparable to conventional adsorbents.
    URI
    http://hdl.handle.net/10646/3050
    Additional Citation Information
    Mugobera, S. (2016). Application of a homogeneously sulphonated polystyrene membrane in the purification of waste water. (Unpublished masters thesis). University of Zimbabwe.
    Subject
    sulphonation reaction
    membrane casting
    water treatment techniques
    fourier transform infrared spectroscopy (FTIR)
    reagents
    waste polystyrene material
    acetyl suphate
    sulphonation
    ion exchange capacity
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