Lukitawesa, Lukitawesa and Eryildiz, Bahriye and Mahboubi, Amir and Millati, Ria and Taherzadeh, Mohammad J. (2021) Semi-continuous production of volatile fatty acids from citrus waste using membrane bioreactors. Innovative Food Science and Emerging Technologies, 67. ISSN 14668564
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In the production of volatile fatty acids (VFAs) from citrus waste, organic loadings rates (OLR) from 1 to 8 g VS/L·d were applied in semi-continuous anaerobic fermentation using a tubular membrane bioreactor (MBR). Filtration fluxes of the membrane were in the range of 7.9–8.5 L/m2·h. trans-Membrane pressure (TMP) revolved around 24.1–67.5 mbar. No obvious fouling and clogging occurred. The highest yield of VFAs 0.67 g VFA/g VS (volatile solids) was achieved at OLR 4 g VS/L·d. When citrus waste was pretreated to remove D-limonene using an airlift reactor, the highest yield of VFAs 0.84 g VFA/g VS was also obtained at OLR 4 g VS/L·d. A further increase in OLR of up to 8 g VS/L·d caused a sharp decrease in yield for the untreated citrus waste and only marginal changes were observed for the pretreated citrus waste. The main composition of VFAs was acetate, butyrate, caproate, and propionate. © 2020 Elsevier Ltd
Item Type: | Article |
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Additional Information: | Cited by: 11 |
Uncontrolled Keywords: | Bioreactors; Microfiltration; Air-lift reactors; Anaerobic fermentation; Filtration flux; Membrane bioreactor; Organic loadings; Transmembrane pressures; Tubular membranes; Volatile fatty acids (VFAs); Volatile fatty acids |
Subjects: | S Agriculture > S Agriculture (General) |
Divisions: | Faculty of Agricultural Technology > Food and Agricultural Product Technology |
Depositing User: | Sri JUNANDI |
Date Deposited: | 05 Oct 2024 10:12 |
Last Modified: | 05 Oct 2024 10:12 |
URI: | https://ir.lib.ugm.ac.id/id/eprint/8810 |