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Leachate characteristics generated by Pagalungan landfill Cagayan de Oro City, Philippines

Remedios T. Tamang, Gina C. Lacang

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Int. J. Biosci.22( 4), 32-38, April 2023

DOI: http://dx.doi.org/10.12692/ijb/22.4.32-38


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This paper discusses the characteristics of leachate generated from municipal solid waste of Pagalungan landfill in Cagayan de Oro City, Philippines. Leachate samples were collected and analyzed for various physicochemical parameters. Leachate characteristics are evaluated by standard tests. The pH of the leachate is considered as acidic as the pH is 6.47 in the Pagalungan landfill. BOD5 and COD of the leachate are 3, 809.27 mg/L and 23, 264 mg/L, respectively. It has been found that leachate contains high concentrations of organic and inorganic constituents beyond the permissible limits. The results showed that the highest metal concentration that exists in the leachate was lead, with less than 0.044 mg/l concentration. In contrast, heavy metals concentration was in trace amounts as the waste is domestic in nature. The BOD5 /COD ratio suggested that the landfill leachate is young-aged leachate.


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Leachate characteristics generated by Pagalungan landfill Cagayan de Oro City, Philippines

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