Pilot-scale recovery of low molecular weight organic acids from anaerobically treated palm oil mill effluent (POME) with energy integrated system

Mumtaz, Tabassum and Abd. Aziz, Suraini and Abdul Rahman , Nor'Aini and Phang, Lai Yee and Yoshihito, Shirai and Hassan, Mohd Ali (2008) Pilot-scale recovery of low molecular weight organic acids from anaerobically treated palm oil mill effluent (POME) with energy integrated system. African Journal of Biotechnology, 7 (21). pp. 3900-3905. ISSN 1684–5315

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Abstract

Low molecular weight organic acids such as acetic acid, propionic acid and butyric acids generated from partial anaerobic treatment of palm oil mill effluent (POME) were recovered using pilot scale filtration and evaporation system. Mechanical filter press (14 L) was used for removing solid fractions and fraction distillation unit (40 L) for evaporation and clarification of concentrated acid from POME. Clarification using rotary evaporator was found to be more suitable than distillation column. Due to the presence of more than 90% of water in POME, the final clarified product comprises only 7% of the total volume. The material balance for the overall process was estimated and integrated system for the bioconversion of organic acids into polyhydroxyalkanoates (PHA) was proposed. The recovery of organic acids has a significant and economical impact, since around 50% cost of PHA production is believed to be associated with the substrate itself.

Item Type:Article
Keyword:Acidogenesis; Anaerobic treatment; Organic acid; Palm oil mill effluent; Recovery
Subject:Palm-oil mill effluent - Treatment
Subject:Anaerobic bacteria
Subject:Palm oil industry - Waste disposal
Faculty or Institute:Faculty of Biotechnology and Biomolecular Sciences
Publisher:Academic Journals
ID Code:16226
Deposited By: Nida Hidayati Ghazali
Deposited On:24 Jul 2012 03:25
Last Modified:23 Oct 2012 07:22

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