Abstract：
:As a promising renewable energy technology, anaerobic fermentation is consistently limited by low production and calorific value of biogas, along with the difficulty of lignocellulose degradation. The effects of polarity and micro-voltage on anaerobic fermentation from lignocellulosic materials were investigated in single-electrode fermenter to explore cost-efficient technology. The results illustrated that the biogas production and quality were significantly affected by electric polarity. And cathode-assisted fermentation led to more positive effects than anode-assisted. Compared with results in control group without electrode, the average biogas and methane yield under cathodic micro-voltage (-250 mV) were astonishingly improved by 2.82 and 2.44 mL g(-1)d(-1) respectively. Meanwhile, the degradation ratios of lignin and cellulose were also improved by 23.11% and 19.46%. It demonstrated that single micro-voltage can not only promote lignocellulose degradation but biogas production and calorific value. These micro-voltage effects on fermentation process also provided great opportunity to breakthrough the present limitation of lignocellulosic materials fermentation.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Qu G,Qiu W,Liu Y,Zhong D,Ning Pdoi
10.1016/j.biortech.2014.02.052subject
Has Abstractpub_date
2014-05-01 00:00:00pages
88-94eissn
0960-8524issn
1873-2976pii
S0960-8524(14)00223-5journal_volume
159pub_type
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