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Separation and recovery of organic acids from fermented kitchen waste by an integrated process


Citation

Omar, Farah Nadia and Abdul Rahman, Nor'aini and Hafid, Halimatun Saadiah and Phang, Lai Yee and Hassan, Mohd Ali (2009) Separation and recovery of organic acids from fermented kitchen waste by an integrated process. African Journal of Biotechnology, 8 (21). art. no. A8777188619. pp. 5807-5813. ISSN 1684–5315

Abstract / Synopsis

Organic acids produced from anaerobic digestion of kitchen waste were recovered using a new integrated method which consisted of freezing and thawing, centrifugation, filtration and evaporation. The main organic acid produced was lactic acid (98%). After the freezing and thawing process, 73% of the total suspended solids were removed and the organic acids were elevated from 59.0 to 70 g/L. The evaporation technique was used to further concentrate the organic acids up to 224 g/L. Using the integrated recovery method, the reduction of the total suspended solids in the solution achieved was about 93%. The material balance for the recovery process was also presented.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Biotechnology and Biomolecular Sciences
DOI Number: 10.5897/AJB09.992
Publisher: Academic Journals
Keywords: Anaerobic digestion; Kitchen waste; Organic acids; Recovery
Depositing User: Nida Hidayati Ghazali
Date Deposited: 19 Jun 2012 13:18
Last Modified: 14 Nov 2017 14:03
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.5897/AJB09.992
URI: http://psasir.upm.edu.my/id/eprint/16670
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