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    Landfill leachate treatment with ozone and ozone/hydrogen peroxide systems.

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    Publication date
    2007
    Author
    Tizaoui, Chedly
    Bouselmi, L.
    Mansouri, L.
    Ghrabi, A.
    Keyword
    Landfill leachate
    Ozone
    Hydrogen peroxide
    Advanced oxidation processes
    Jebel Chakir
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    In the search for an efficient and economical method to treat a leachate generated from a controlled municipal solid waste landfill site (Jebel Chakir) in the region of greater Tunis in Tunisia, ozone alone and ozone combined with hydrogen peroxide were studied. The leachate was characterised by high COD, low biodegradability and intense dark colour. A purpose-built reactor, to avoid foaming, was used for the study. It was found that ozone efficacy was almost doubled when combined with hydrogen peroxide at 2 g/L but higher H2O2 concentrations gave lower performances. Enhancement in the leachate biodegradability from about 0.1 to about 0.7 was achieved by the O3/H2O2 system. Insignificant changes in pH that may due to buffering effect of bicarbonate was found. A small decrease in sulphate concentrations were also observed. In contrast, chloride concentration declined at the beginning of the experiment then increased to reach its initial value. Estimates of the operating costs were made for comparison purposes and it was found that the O3/H2O2 system at 2 g/L H2O2 gave the lowest cost of about 3.1 TND (2.3 USD)/kg COD removed.
    URI
    http://hdl.handle.net/10454/3785
    Version
    No full-text available in the repository
    Citation
    Tizaoui, C., Bouselmi, L., Mansouri, L. and Ghrabi, A. (2007). Landfill leachate treatment with ozone and ozone/hydrogen peroxide systems. Journal of Hazardous Materials. Vol. 140, No. 1-2, pp. 316-324.
    Link to publisher’s version
    http://dx.doi.org/10.1016/j.jhazmat.2006.09.023
    Type
    Article
    Collections
    Engineering and Informatics Publications

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