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Coagulation and flocculation of Bukit Tagar Sanitary Landfill Leachate using alum and PAC

Discharge of landfill leachate into the environment without proper treatment may cause severe environmental problems since they can infiltrate the soil, causing surface and ground water pollution. Leachate from Bukit Tagar Sanitary Landfill was characterized and Jar-Test trials were applied in this...

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Main Authors: Mohammed, M. Al Shukaili, Agamuthu, Pariatamby
Format: Article
Published: Faculty of Science, University of Malaya 2008
Subjects:
Q Science (General)
QH Natural history
Online Access:http://eprints.um.edu.my/25648/
https://mjs.um.edu.my/article/view/9206
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spelling my.um.eprints.256482020-12-11T07:51:18Z http://eprints.um.edu.my/25648/ Coagulation and flocculation of Bukit Tagar Sanitary Landfill Leachate using alum and PAC Mohammed, M. Al Shukaili Agamuthu, Pariatamby Q Science (General) QH Natural history Discharge of landfill leachate into the environment without proper treatment may cause severe environmental problems since they can infiltrate the soil, causing surface and ground water pollution. Leachate from Bukit Tagar Sanitary Landfill was characterized and Jar-Test trials were applied in this study to determine the optimum conditions (effective dosage, optimum pH and mixing speed) for the removal of leachate pollutants. Polyaluminium chloride (PAC) at optimum concentration of 4mL/500mL and at pH 7, with a mixing speed of 90 rpm, gave complete removal of Cd, Pb and Cu. It also reduced about 99% of Zn at the same conditions. Aluminium sulfate (alum) at optimum concentration of 8g/500mL at pH 7 and with mixing speed of 100 rpm, gave total removal of Pb and Cu and was able to reduce 98% of Cd and 94% of Zn. Reduction of turbidity, color and TSS from leachate using PAC at optimum conditions ranged from 70% to 80%, while alum at optimum conditions gave reduction of turbidity, color and TSS in the range of 63% to 78%. PAC showed a higher removal of leachate pollutants than alum, and it was able to reduce Cd, Pb, Zn and Cu to below the EQA 1974 Standard B, while alum reduced only Pb and Cu to below the EQA 1974 Standard B. Alum was not able to remove Cd and Zn to below the EQA 1974 Standard B which may require further treatment. It was also found that the treatment using PAC was cheaper by 25% compared to alum. The average estimated cost (per day) of treating 600m3 of leachate using PAC and alum, was RM1440 and RM1920, respectively. Faculty of Science, University of Malaya 2008 Article PeerReviewed Mohammed, M. Al Shukaili and Agamuthu, Pariatamby (2008) Coagulation and flocculation of Bukit Tagar Sanitary Landfill Leachate using alum and PAC. Malaysian Journal of Science, 27 (2). pp. 39-51. ISSN 1394-3065 https://mjs.um.edu.my/article/view/9206
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
QH Natural history
spellingShingle Q Science (General)
QH Natural history
Mohammed, M. Al Shukaili
Agamuthu, Pariatamby
Coagulation and flocculation of Bukit Tagar Sanitary Landfill Leachate using alum and PAC
description Discharge of landfill leachate into the environment without proper treatment may cause severe environmental problems since they can infiltrate the soil, causing surface and ground water pollution. Leachate from Bukit Tagar Sanitary Landfill was characterized and Jar-Test trials were applied in this study to determine the optimum conditions (effective dosage, optimum pH and mixing speed) for the removal of leachate pollutants. Polyaluminium chloride (PAC) at optimum concentration of 4mL/500mL and at pH 7, with a mixing speed of 90 rpm, gave complete removal of Cd, Pb and Cu. It also reduced about 99% of Zn at the same conditions. Aluminium sulfate (alum) at optimum concentration of 8g/500mL at pH 7 and with mixing speed of 100 rpm, gave total removal of Pb and Cu and was able to reduce 98% of Cd and 94% of Zn. Reduction of turbidity, color and TSS from leachate using PAC at optimum conditions ranged from 70% to 80%, while alum at optimum conditions gave reduction of turbidity, color and TSS in the range of 63% to 78%. PAC showed a higher removal of leachate pollutants than alum, and it was able to reduce Cd, Pb, Zn and Cu to below the EQA 1974 Standard B, while alum reduced only Pb and Cu to below the EQA 1974 Standard B. Alum was not able to remove Cd and Zn to below the EQA 1974 Standard B which may require further treatment. It was also found that the treatment using PAC was cheaper by 25% compared to alum. The average estimated cost (per day) of treating 600m3 of leachate using PAC and alum, was RM1440 and RM1920, respectively.
format Article
author Mohammed, M. Al Shukaili
Agamuthu, Pariatamby
author_facet Mohammed, M. Al Shukaili
Agamuthu, Pariatamby
author_sort Mohammed, M. Al Shukaili
title Coagulation and flocculation of Bukit Tagar Sanitary Landfill Leachate using alum and PAC
title_short Coagulation and flocculation of Bukit Tagar Sanitary Landfill Leachate using alum and PAC
title_full Coagulation and flocculation of Bukit Tagar Sanitary Landfill Leachate using alum and PAC
title_fullStr Coagulation and flocculation of Bukit Tagar Sanitary Landfill Leachate using alum and PAC
title_full_unstemmed Coagulation and flocculation of Bukit Tagar Sanitary Landfill Leachate using alum and PAC
title_sort coagulation and flocculation of bukit tagar sanitary landfill leachate using alum and pac
publisher Faculty of Science, University of Malaya
publishDate 2008
url http://eprints.um.edu.my/25648/
https://mjs.um.edu.my/article/view/9206
_version_ 1687394111393366016
score 13.211869

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