Effect of temperature and organic loading rate on upflow anaerobic sludge blanket reactor and CH4 production by treating liquidized food waste

Latif, M. A., Ahmad, A., Ghufran, R. and Wahid, Z. A. (2012) Effect of temperature and organic loading rate on upflow anaerobic sludge blanket reactor and CH4 production by treating liquidized food waste. Environmental Progress and Sustainable Energy, 31 1: 114-121. doi:10.1002/ep.10540


Author Latif, M. A.
Ahmad, A.
Ghufran, R.
Wahid, Z. A.
Title Effect of temperature and organic loading rate on upflow anaerobic sludge blanket reactor and CH4 production by treating liquidized food waste
Journal name Environmental Progress and Sustainable Energy   Check publisher's open access policy
ISSN 1944-7442
1944-7450
Publication date 2012-04
Year available 2011
Sub-type Article (original research)
DOI 10.1002/ep.10540
Volume 31
Issue 1
Start page 114
End page 121
Total pages 8
Place of publication Hoboken, NJ, United States
Publisher John Wiley & Sons
Collection year 2013
Language eng
Formatted abstract
Anaerobic treatment of liquidized food waste (LFW) was carried out in an upflow anaerobic sludge blanket reactor (UASBR) by stepwise increase in organic loading rate (OLR) and temperature. The chemical oxygen demand (COD), total organic carbon (TOC), biogas and methane production were measured at hydraulic retention time (HRT) of 10 to 4d, and start up strategy of the reactor was monitored for 10 weeks. Thermophilic condition was achieved by increasing the temperature from 30 to 55°C, and pH was maintained at 7 ± 0.5 throughout the experiment. Maximum COD removal efficiency was 93.67% (r = 0.84) at an OLR of 12.5 g-COD/L·d and 4d HRT. Maximum TOC removal efficiency was 79.14% (r = −0.94) at an influent TOC concentration of 3.59 g/L. Biogas and methane yield were recorded to a maximum of 1.364 L/g-CODremoved·d (r = 0.81), 0.912 L/g-CODremoved·d (r = 0.83), and average methane content of biogas was 63%. The reactor was fully acclimatized at 55°C and achieved stability with high removal efficiency and biogas production. An OLR of 12.5 g-COD/L·d and HRT of 4 days were suitable for the treatment of LFW in UASBR. The treatment process can also be extendable for more than 10 weeks without any measurable problem.
Keyword Liquidized food waste
UASB reactor
COD
VFA
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status Non-UQ
Additional Notes Article first published online: 10 MAR 2011

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Non HERDC
Advanced Water Management Centre Publications
 
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Created: Tue, 28 Aug 2012, 16:11:48 EST by Asif Latif on behalf of School of Chemical Engineering