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Pre-treatment of palm oil mill effluent (POME) : a comparison study using chitisan and alum

Chitosan is a natural organic polyelectrolyte of high molecular weight and charge density; obtained from deacetylation of chitin. This study explored the potential and effectiveness of applying chitosan as a primary coagulant and flocculent, in comparison with aluminium sulphate (alum) for pre-treat...

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Main Authors: Abu Hassan, Mohd. Ariffin, Puteh, Mohd. Hafiz
Format: Article
Language:English
English
Published: Faculty of Civil Engineering, Universiti Teknologi Malaysia 2007
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utm.my/id/eprint/8442/1/MohdAriffinAbuHassan2007_PreTreatmentofPalmOil.pdf
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spelling my.utm.84422014-01-12T07:31:25Z http://eprints.utm.my/id/eprint/8442/ Pre-treatment of palm oil mill effluent (POME) : a comparison study using chitisan and alum Abu Hassan, Mohd. Ariffin Puteh, Mohd. Hafiz TA Engineering (General). Civil engineering (General) Chitosan is a natural organic polyelectrolyte of high molecular weight and charge density; obtained from deacetylation of chitin. This study explored the potential and effectiveness of applying chitosan as a primary coagulant and flocculent, in comparison with aluminium sulphate (alum) for pre-treatment of palm oil mill effluent (POME). A series of batch coagulation and flocculation processes with chitosan and alum under different conditions, i.e. dosage and pH were conducted, in order to determine their optimum conditions. The performance was assessed in terms of turbidity, total suspended solids (TSS) and chemical oxygen demand (COD) reductions. Chitosan showed better parameter reductions with much lower dosage consumption, compared to alum, even at the original pH of POME, i.e. 4.5. At pH 6, the optimum chitosan’s dosage of 400 mg/L was able to reduce turbidity, TSS and COD levels by 99.90%, 99.15% and 60.73% respectively. At this pH, the coagulation of POME by chitosan was brought by the combination of charge neutralization and polymer bridging mechanism. As for alum, the optimum dosage was 8 g/L at pH 7 which result in reductions of turbidity, TSS and COD by 99.45%, 98.60% and 49.24%, respectively. Combinations of chitosan and alum, showed very little increment in efficiency, compared to using chitosan alone. It can be suggested that polymer bridging mechanism by chitosan is more dominant than alum and the dosage of alum can also be reduced. Faculty of Civil Engineering, Universiti Teknologi Malaysia 2007 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/8442/1/MohdAriffinAbuHassan2007_PreTreatmentofPalmOil.pdf text/html en http://eprints.utm.my/id/eprint/8442/2/index.html Abu Hassan, Mohd. Ariffin and Puteh, Mohd. Hafiz (2007) Pre-treatment of palm oil mill effluent (POME) : a comparison study using chitisan and alum. Malaysian Journal of Civil Engineering, 19 (2). pp. 128-141. ISSN 1823-7843
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Abu Hassan, Mohd. Ariffin
Puteh, Mohd. Hafiz
Pre-treatment of palm oil mill effluent (POME) : a comparison study using chitisan and alum
description Chitosan is a natural organic polyelectrolyte of high molecular weight and charge density; obtained from deacetylation of chitin. This study explored the potential and effectiveness of applying chitosan as a primary coagulant and flocculent, in comparison with aluminium sulphate (alum) for pre-treatment of palm oil mill effluent (POME). A series of batch coagulation and flocculation processes with chitosan and alum under different conditions, i.e. dosage and pH were conducted, in order to determine their optimum conditions. The performance was assessed in terms of turbidity, total suspended solids (TSS) and chemical oxygen demand (COD) reductions. Chitosan showed better parameter reductions with much lower dosage consumption, compared to alum, even at the original pH of POME, i.e. 4.5. At pH 6, the optimum chitosan’s dosage of 400 mg/L was able to reduce turbidity, TSS and COD levels by 99.90%, 99.15% and 60.73% respectively. At this pH, the coagulation of POME by chitosan was brought by the combination of charge neutralization and polymer bridging mechanism. As for alum, the optimum dosage was 8 g/L at pH 7 which result in reductions of turbidity, TSS and COD by 99.45%, 98.60% and 49.24%, respectively. Combinations of chitosan and alum, showed very little increment in efficiency, compared to using chitosan alone. It can be suggested that polymer bridging mechanism by chitosan is more dominant than alum and the dosage of alum can also be reduced.
format Article
author Abu Hassan, Mohd. Ariffin
Puteh, Mohd. Hafiz
author_facet Abu Hassan, Mohd. Ariffin
Puteh, Mohd. Hafiz
author_sort Abu Hassan, Mohd. Ariffin
title Pre-treatment of palm oil mill effluent (POME) : a comparison study using chitisan and alum
title_short Pre-treatment of palm oil mill effluent (POME) : a comparison study using chitisan and alum
title_full Pre-treatment of palm oil mill effluent (POME) : a comparison study using chitisan and alum
title_fullStr Pre-treatment of palm oil mill effluent (POME) : a comparison study using chitisan and alum
title_full_unstemmed Pre-treatment of palm oil mill effluent (POME) : a comparison study using chitisan and alum
title_sort pre-treatment of palm oil mill effluent (pome) : a comparison study using chitisan and alum
publisher Faculty of Civil Engineering, Universiti Teknologi Malaysia
publishDate 2007
url http://eprints.utm.my/id/eprint/8442/1/MohdAriffinAbuHassan2007_PreTreatmentofPalmOil.pdf
http://eprints.utm.my/id/eprint/8442/2/index.html
http://eprints.utm.my/id/eprint/8442/
_version_ 1643644991333990400
score 13.211869

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