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Optimization of coagulation-flocculation process for the palm oil mill effluent treatment by using rice husk ash

A Coagulation-Flocculation (CF) process was used as a pretreatment for Palm Oil Mill Effluent (POME) prior to the subsequent biological processes. In this study, Rice Husk Ash (RHA) was used to explore its potential as a coagulant, in comparison with aluminium sulphate (alum), Al2(SO4)3, for the rem...

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Main Authors: Md. Huzira, Nurhamieza, A. Aziz, Md. Maniruzzaman, Ismail, S. B., Nik Mahmood, Nik Azmi, Umor, N. A., Syed Muhammad, Syed Anuar Faua’ad
Format: Article
Published: Elsevier B.V. 2019
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TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/89415/
http://dx.doi.org/10.1016/j.indcrop.2019.111482
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spelling my.utm.894152021-02-09T08:26:52Z http://eprints.utm.my/id/eprint/89415/ Optimization of coagulation-flocculation process for the palm oil mill effluent treatment by using rice husk ash Md. Huzira, Nurhamieza A. Aziz, Md. Maniruzzaman Ismail, S. B. Nik Mahmood, Nik Azmi Umor, N. A. Syed Muhammad, Syed Anuar Faua’ad TP Chemical technology A Coagulation-Flocculation (CF) process was used as a pretreatment for Palm Oil Mill Effluent (POME) prior to the subsequent biological processes. In this study, Rice Husk Ash (RHA) was used to explore its potential as a coagulant, in comparison with aluminium sulphate (alum), Al2(SO4)3, for the removal of Chemical Oxygen Demand (COD) and Total Solid (TS) from POME. Important process parameters including coagulant dosage, initial pH and settling time were optimized using Box–Behnken design in Response Surface Methodology (RSM). All the coagulants and coagulated flocs were characterized by using Fourier Transform Infrared spectroscopy (FTIR). POME treated with RHA yielded COD and TS removals up to 52.38% and 83.88%, respectively, under the following optimum conditions: 6.0 g of RHA, initial pH of 3.6 and settling time of 57.00 min. Meanwhile, alum under optimum conditions (6.5 g alum, initial pH of 6.0 and settling time of 41.69 min) produce slightly higher removals of chemical oxygen demand and total solids at 52.36% and 84.94% respectively. The results have shown that RHA is capable of becoming an alternative to alum and efficiently treated POME at its natural pH at relatively lower levels compared to treatment using alum. The present study shows that RHA can be utilized as a new cost-effective coagulant for palm oil mill effluent treatment. Elsevier B.V. 2019-11 Article PeerReviewed Md. Huzira, Nurhamieza and A. Aziz, Md. Maniruzzaman and Ismail, S. B. and Nik Mahmood, Nik Azmi and Umor, N. A. and Syed Muhammad, Syed Anuar Faua’ad (2019) Optimization of coagulation-flocculation process for the palm oil mill effluent treatment by using rice husk ash. Industrial Crops and Products, 139 . p. 111482. ISSN 09266690 http://dx.doi.org/10.1016/j.indcrop.2019.111482
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/
topic TP Chemical technology
spellingShingle TP Chemical technology
Md. Huzira, Nurhamieza
A. Aziz, Md. Maniruzzaman
Ismail, S. B.
Nik Mahmood, Nik Azmi
Umor, N. A.
Syed Muhammad, Syed Anuar Faua’ad
Optimization of coagulation-flocculation process for the palm oil mill effluent treatment by using rice husk ash
description A Coagulation-Flocculation (CF) process was used as a pretreatment for Palm Oil Mill Effluent (POME) prior to the subsequent biological processes. In this study, Rice Husk Ash (RHA) was used to explore its potential as a coagulant, in comparison with aluminium sulphate (alum), Al2(SO4)3, for the removal of Chemical Oxygen Demand (COD) and Total Solid (TS) from POME. Important process parameters including coagulant dosage, initial pH and settling time were optimized using Box–Behnken design in Response Surface Methodology (RSM). All the coagulants and coagulated flocs were characterized by using Fourier Transform Infrared spectroscopy (FTIR). POME treated with RHA yielded COD and TS removals up to 52.38% and 83.88%, respectively, under the following optimum conditions: 6.0 g of RHA, initial pH of 3.6 and settling time of 57.00 min. Meanwhile, alum under optimum conditions (6.5 g alum, initial pH of 6.0 and settling time of 41.69 min) produce slightly higher removals of chemical oxygen demand and total solids at 52.36% and 84.94% respectively. The results have shown that RHA is capable of becoming an alternative to alum and efficiently treated POME at its natural pH at relatively lower levels compared to treatment using alum. The present study shows that RHA can be utilized as a new cost-effective coagulant for palm oil mill effluent treatment.
format Article
author Md. Huzira, Nurhamieza
A. Aziz, Md. Maniruzzaman
Ismail, S. B.
Nik Mahmood, Nik Azmi
Umor, N. A.
Syed Muhammad, Syed Anuar Faua’ad
author_facet Md. Huzira, Nurhamieza
A. Aziz, Md. Maniruzzaman
Ismail, S. B.
Nik Mahmood, Nik Azmi
Umor, N. A.
Syed Muhammad, Syed Anuar Faua’ad
author_sort Md. Huzira, Nurhamieza
title Optimization of coagulation-flocculation process for the palm oil mill effluent treatment by using rice husk ash
title_short Optimization of coagulation-flocculation process for the palm oil mill effluent treatment by using rice husk ash
title_full Optimization of coagulation-flocculation process for the palm oil mill effluent treatment by using rice husk ash
title_fullStr Optimization of coagulation-flocculation process for the palm oil mill effluent treatment by using rice husk ash
title_full_unstemmed Optimization of coagulation-flocculation process for the palm oil mill effluent treatment by using rice husk ash
title_sort optimization of coagulation-flocculation process for the palm oil mill effluent treatment by using rice husk ash
publisher Elsevier B.V.
publishDate 2019
url http://eprints.utm.my/id/eprint/89415/
http://dx.doi.org/10.1016/j.indcrop.2019.111482
_version_ 1692991780332503040
score 13.211869

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