Treatment of palm oil mill effluent using hybrid anaerobic membrane bioreactor at different temperatures and pH values

Membrane fouling is considered as the major impediment to the widespread application of the membrane bioreactor (MBR) system as it affects the operating conditions, cost and performance of the whole system. In order to increase membrane fouling resistance within the system, performance of the anaero...

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Main Author: Leong, Hoong Sum
Format: Final Year Project / Dissertation / Thesis
Published: 2018
Subjects:
Online Access:http://eprints.utar.edu.my/2840/
http://eprints.utar.edu.my/2840/1/EV%2D2018%2D1405417%2D3.pdf
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author Leong, Hoong Sum
author_facet Leong, Hoong Sum
author_sort Leong, Hoong Sum
building UTAR Institutional Repository
collection Online Access
description Membrane fouling is considered as the major impediment to the widespread application of the membrane bioreactor (MBR) system as it affects the operating conditions, cost and performance of the whole system. In order to increase membrane fouling resistance within the system, performance of the anaerobic membrane bioreactor (AnMBR) system operated under different operational temperatures and pH values were assessed. The AnMBR which operated under thermophilic condition, 55 °C showed the highest COD removal efficiency which was 76.21 % ± 4.54 % compared to others AnMBRs operated under mesophilic condition. A suitable increment of operational temperature could accelerate hydrolysis of cellulose and hemicellulose into comparatively biodegradable components. The performance of the AnMBRs with controlled pH around 6.7 which is proved as the optimum pH for anaerobic digestion. However this study showed no significant improvement in terms of COD removal efficiency. This may be due to the increased pressure within the bioreactors after an unexpected production of foam clogging the biogas outlets. In this study, the integration of microbial fuel cell (MFC) into the AnMBRs did not contribute much improvement but showed declination in terms of COD removal efficiency and membrane fouling control. The declination of the performance of the combined system was due to the sensitivity of anaerobic microorganisms to the environmental conditions such as the change in feedstock from raw POME to the supernatant of MFC. The performance of MFC-AnMBRs may be affected during this period as the stability of the microbes community is yet achieved.
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format Final Year Project / Dissertation / Thesis
id utar-2840
institution Universiti Tunku Abdul Rahman
institution_category Local University
last_indexed 2025-11-15T19:27:43Z
publishDate 2018
recordtype eprints
repository_type Digital Repository
spelling utar-28402019-08-16T10:39:45Z Treatment of palm oil mill effluent using hybrid anaerobic membrane bioreactor at different temperatures and pH values Leong, Hoong Sum TD Environmental technology. Sanitary engineering Membrane fouling is considered as the major impediment to the widespread application of the membrane bioreactor (MBR) system as it affects the operating conditions, cost and performance of the whole system. In order to increase membrane fouling resistance within the system, performance of the anaerobic membrane bioreactor (AnMBR) system operated under different operational temperatures and pH values were assessed. The AnMBR which operated under thermophilic condition, 55 °C showed the highest COD removal efficiency which was 76.21 % ± 4.54 % compared to others AnMBRs operated under mesophilic condition. A suitable increment of operational temperature could accelerate hydrolysis of cellulose and hemicellulose into comparatively biodegradable components. The performance of the AnMBRs with controlled pH around 6.7 which is proved as the optimum pH for anaerobic digestion. However this study showed no significant improvement in terms of COD removal efficiency. This may be due to the increased pressure within the bioreactors after an unexpected production of foam clogging the biogas outlets. In this study, the integration of microbial fuel cell (MFC) into the AnMBRs did not contribute much improvement but showed declination in terms of COD removal efficiency and membrane fouling control. The declination of the performance of the combined system was due to the sensitivity of anaerobic microorganisms to the environmental conditions such as the change in feedstock from raw POME to the supernatant of MFC. The performance of MFC-AnMBRs may be affected during this period as the stability of the microbes community is yet achieved. 2018-05-02 Final Year Project / Dissertation / Thesis NonPeerReviewed application/pdf http://eprints.utar.edu.my/2840/1/EV%2D2018%2D1405417%2D3.pdf Leong, Hoong Sum (2018) Treatment of palm oil mill effluent using hybrid anaerobic membrane bioreactor at different temperatures and pH values. Final Year Project, UTAR. http://eprints.utar.edu.my/2840/
spellingShingle TD Environmental technology. Sanitary engineering
Leong, Hoong Sum
Treatment of palm oil mill effluent using hybrid anaerobic membrane bioreactor at different temperatures and pH values
title Treatment of palm oil mill effluent using hybrid anaerobic membrane bioreactor at different temperatures and pH values
title_full Treatment of palm oil mill effluent using hybrid anaerobic membrane bioreactor at different temperatures and pH values
title_fullStr Treatment of palm oil mill effluent using hybrid anaerobic membrane bioreactor at different temperatures and pH values
title_full_unstemmed Treatment of palm oil mill effluent using hybrid anaerobic membrane bioreactor at different temperatures and pH values
title_short Treatment of palm oil mill effluent using hybrid anaerobic membrane bioreactor at different temperatures and pH values
title_sort treatment of palm oil mill effluent using hybrid anaerobic membrane bioreactor at different temperatures and ph values
topic TD Environmental technology. Sanitary engineering
url http://eprints.utar.edu.my/2840/
http://eprints.utar.edu.my/2840/1/EV%2D2018%2D1405417%2D3.pdf