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Primary treatment of anaerobic landfill leachate using activated carbon and limestone - Batch and column studies

Foul, A.A. and Aziz, H.A. and Isa, M.H. and Hung, Y.-T. (2009) Primary treatment of anaerobic landfill leachate using activated carbon and limestone - Batch and column studies. [Citation Index Journal]

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Abstract

Leachate generated from an old landfill in Taiping, Perak, Malaysia contains high colour, COD, iron and ammoniacal nitrogen. Activated carbon–limestone mixture was used as a primary treatment process. More than 86% of colour and COD, 95% of iron, and 48% of ammoniacal nitrogen were removed by a mixture of activated carbon and limestone (15:25 by volume) in the batch study compared with 70, 80 and 90% respectively, by column study on the first five days. Both Langmuir and Freundlich isotherms had fitted well with the experimental data. The adsorption kinetics followed the pseudo-second-order model indicating that chemisorption or ion exchange was the rate-controlling step in the adsorption.

Item Type:Citation Index Journal
Uncontrolled Keywords:adsorption; primary; limestone; activated carbon; anaerobic landfill; leachate; colour; iron; COD; chemical oxygen demand; ammoniacal nitrogen.
Subjects:T Technology > TD Environmental technology. Sanitary engineering
Departments / MOR / COE:Departments > Civil Engineering
ID Code:1339
Deposited By: Assoc Prof Dr Mohamed Hasnain Isa
Deposited On:20 Apr 2010 06:00
Last Modified:19 Jan 2017 08:25

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