Controlling accumulation of fermentation inhibitors in biorefinery recycle water using microbial fuel cells |
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Authors: | Abhijeet P Borole Jonathan R Mielenz Tatiana A Vishnivetskaya Choo Y Hamilton |
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Affiliation: | (1) BioSciences Division, Oak Ridge National Laboratory, , Oak Ridge, TN 37831-6226, USA;(2) The University of Tennessee, Knoxville, TN 37996, USA |
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Abstract: | Background Microbial fuel cells (MFC) and microbial electrolysis cells are electrical devices that treat water using microorganisms and convert soluble organic matter into electricity and hydrogen, respectively. Emerging cellulosic biorefineries are expected to use large amounts of water during production of ethanol. Pretreatment of cellulosic biomass results in production of fermentation inhibitors which accumulate in process water and make the water recycle process difficult. Use of MFCs to remove the inhibitory sugar and lignin degradation products from recycle water is investigated in this study. |
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