Physicochemical Pretreatment of Landfill Leachate

Heng, G. C. and Elmolla, E. S. and Chaudhuri, M. (2009) Physicochemical Pretreatment of Landfill Leachate. In: Second International Conference on Engineering Technology (ICET 2009), 8-10 December 2009, Kuala Lumpur.

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The objective of the research was to study physicochemical pretreatment to prepare a landfill leachate for further treatment. Leachate samples were subjected to pH adjustment-settling and coagulation-flocculation. The pH adjustment-settling produced the following removals at pH 3: COD 45%, total suspended solids 80% and turbidity 59%. Coagulation-flocculation at optimum pH 6 and optimum FeCl3 dosage of 1200 mg/L resulted in COD, total suspended solids and turbidity removal of 65, 72 and 92%, respectively, and biodegradability was 0.18. pH adjustment-settling appears to be an adequate pretreatment for further treatment of the leachate by physicochemical process(es) operating at low pH such as Fenton treatment. Coagulation-flocculation appears to be a suitable pretreatment for further treatment of the leachate by biological process(es).

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Departments / MOR / COE: Departments > Civil Engineering
Depositing User: Prof Malay Chaudhuri
Date Deposited: 29 Jun 2010 00:31
Last Modified: 19 Jan 2017 08:25

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