Abstract:
:Anaerobic digestion (AD) of vinegar residue was investigated in continuously stirred tank reactor (CSTR). The influence of organic loading rate (OLR) and effluent recirculation on AD performance of vinegar residue was tested. Five OLRs, 1.0, 1.5, 2.0, 2.5, and 3.0 g(vs) L(-1) d(-1), were used. The highest volumetric methane productivity of 581.88 mL L(-1) was achieved at OLR of 2.5 g(vs) L(-1) d(-1). Effluent reflux ratio was set as 50%, the results showed that effluent recirculation could effectively neutralize the acidity of vinegar residue, raise the pH of the feedstock, and enhance the buffering capacity of the AD system. Anaerobic digestion of vinegar residue could be a promising way not only for converting this waste into gas energy but also alleviating environmental pollution which might be useful for future industrial application.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Li L,Feng L,Zhang R,He Y,Wang W,Chen C,Liu Gdoi
10.1016/j.biortech.2015.03.086subject
Has Abstractpub_date
2015-06-01 00:00:00pages
338-342eissn
0960-8524issn
1873-2976pii
S0960-8524(15)00418-6journal_volume
186pub_type
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