Physico-chemical treatment of bukit tagar sanitary landfill leachate using P-Floc775 and ferric chloride

Agamuthu, Pariatamby and Ai-Abdali, S.N.A. (2009) Physico-chemical treatment of bukit tagar sanitary landfill leachate using P-Floc775 and ferric chloride. Malaysian Journal of Science, 28 (2). pp. 187-195. ISSN 1394-3065

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Abstract

Bukit Tagar Sanitary landfill leachate was characterized and then treated with ferric chloride and P-Floc775, individually. The raw leachate contained high concentration of BOD5 ( 27000 mg/L), COD ( 59000 mg/L ), NH 3-N (4300 mg/L ), Pb (15.15 mg/L), Al (15.75 mg/L ), Zn (17.55 mg/L ), Fe (84.3 mg/L ), Cu (10.95 mg/L) cd (11-25 mg/L) and As (3.6 mg/L). All these parameters exceeded the Malaysian regulatory standard limit of EQA 1974 (Standard A and B). Leachate treatment was optimum with 2g/500ml FeCl 3 at pH 7 and mixing speed 100 rpm. It was able to reduce about 100% of Cd, Pb and Cu to below the Environmental Quality (Sewage and Industrial Effluent) Regulation Standard B while Zn was reduced by 89% but was still above standard B. The optimum for P-Floc775 was 2ml/500ml, pH7 and mixing speed 90 rpm. Maximum removal of Cd and Cu was 100% which was below the Environmental Quality Regulation Standard B requirements. P-Floc775 was able to reduce Pb and Zn by 82% and 88%, respectively, which were still above Standard B. Further integrated leachate treatment is recommended to achieve the EQA regulation limits.

Item Type: Article
Additional Information: Institute of Biological Sciences, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: Chemical treatment, landfill leachate, P-Floc775
Subjects: Q Science > QH Natural history > QH301 Biology
Divisions: Faculty of Science > Institute of Biological Sciences
Depositing User: Miss Malisa Diana
Date Deposited: 06 Mar 2013 03:24
Last Modified: 28 Apr 2021 07:09
URI: http://eprints.um.edu.my/id/eprint/4991

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