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Performance of bio-fouling reducer in submerged membrane bioreactor for palm oil mill effluent treatment

Yuniarto, Adhi and Ujang, Zaini and Noor, Zainura Zainon (2008) Performance of bio-fouling reducer in submerged membrane bioreactor for palm oil mill effluent treatment. In: International Conf & Expo on Environmental Management and Technologies 2008, 2008, PWTC, Kuala Lumpur.

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Abstract

Bio-fouling is one of the major challenges of submerged membrane bioreactor operation, which reduces productivity and increases operational/maintenance cost. Powdered activated carbon, granular activated carbon and fine grained zeolite were used as bio-fouling reducer (BFR) to reduce bio-fouling in membrane and improve effluent qualities. A bench scale aerobic submerged membrane bioreactor (ASMBR) was used to study bio-fouling behavior for palm oil mill effluent (POME) treatment. A 20-liter reactor was set up using a flat sheet microfiltration membrane equipped with continues fine air bubbles for bio-oxidation and membrane scouring. Comparative result on ASMBR with and without BFR adjunction was performed at constant flux and in a defined organic loading. Experiments showed positive changes in trans membrane pressure (TMP), as well as the improvement in effluent qualities. However a jelly-like biofilm layer was the main reason for TMP increasing and bio-fouling.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Bio-fouling reducer, membrane bioreactor, ASMBR, POME
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:15918
Deposited By: Siti Khairiyah Nordin
Deposited On:30 Sep 2011 09:48
Last Modified:30 Sep 2011 09:48

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