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Performance comparison between mesophilic and thermophilic anaerobic reactors for treatment of palm oil mill effluent

Title
Performance comparison between mesophilic and thermophilic anaerobic reactors for treatment of palm oil mill effluent
Author
박주양
Keywords
Anaerobic digestion; Organic loading rate; Palm oil mill effluent; Mesophilic; Thermophilic
Issue Date
2014-08
Publisher
Elsevier Science B.V., Amsterdam.
Citation
Bioresource technology, 2014, 165, pp. 122-128
Abstract
The anaerobic digestion of palm oil mill effluent (POME) was carried out under mesophilic (37 o C) and thermophilic (55 o C) conditions without long-time POME storage in order to compare the performance of each condition in the field of Sumatra Island, Indonesia. The anaerobic treatment system was composed of anaerobic hybrid reactor and anaerobic baffled filter. Raw POME was pretreated by screw decanter to reduce suspended solids and residual oil. The total COD removal rate of 90-95% was achieved in both conditions at the OLR of 15kg[COD]/m 3 /d. The COD removal in thermophilic conditions was slightly better, however the biogas production was much higher than that in the mesophilic one at high OLR. The organic contents in pretreated POME were highly biodegradable in mesophilic under the lower OLRs. The biogas production was 13.5-20.0l/d at the 15kg[COD]/m 3 /d OLR, and the average content of carbon dioxide was 5-35% in both conditions.
URI
http://www.sciencedirect.com/science/article/pii/S0960852414005021?via%3Dihubhttp://hdl.handle.net/20.500.11754/47615
ISSN
0960-8524
DOI
10.1016/j.biortech.2014.04.007
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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