Abstract
Abstract Biologically pretreated leachate from a sea‐based solid waste disposal site was treated using carbon adsorption, ozonation and chemical coagulation. CODp in the leachate was hardly removed by activated carbon. The constants of k and 1/n in Freundlich isotherm equation were 0.069 and 2.0, respectively. Ozone oxidation was found ineffective. Ozone‐CODp binding coefficient was 0.019 i.e. about 10 times lower than that of sewage and septage. Ferric chloride and polymerized ferric sulfate were found to be effective in decreasing CODp. Maximum removal efficiency attained was 50%.
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