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022			_a1996-1073
024	8		_ahttps://doi.org/10.3390/en11082101
040			_aMX-TxCIM
041			_aeng
100	1		_924512 _aValero, D.
245	1	0	_aEnhancing biochemical methane potential and enrichment of specific electroactive communities from nixtamalization wastewater using granular activated carbon as a conductive material
260			_aBasel (Switzerland) : _bMDPI, _c2018.
500			_aPeer review
500			_aOpen Access
520			_aNejayote (corn step liquor) production in Mexico is approximately 1.4 × 1010 m3 per year and anaerobic digestion is an effective process to transform this waste into green energy. The biochemical methane potential (BMP) test is one of the most important tests for evaluating the biodegradability and methane production capacity of any organic waste. Previous research confirms that the addition of conductive materials significantly enhances the methane production yield. This study concludes that the addition of granular activated carbon (GAC) increases methane yield by 34% in the first instance. Furthermore, results show that methane production is increased by 54% when a GAC biofilm is developed 10 days before undertaking the BMP test. In addition, the electroactive population was 30% higher when attached to the GAC than in control reactors. Moreover, results show that electroactive communities attached to the GAC increased by 38% when a GAC biofilm is developed 10 days before undertaking the BMP test, additionally only in these reactors Geobacter was identified. GAC has two main effects in anaerobic digestion; it promotes direct interspecies electron transfer (DIET) by developing an electro-active biofilm and simultaneously it reduces redox potential from −223 mV to −470 mV. These results suggest that the addition of GAC to biodigesters, improves the anaerobic digestion performance in industrial processed food waste.
546			_aText in English
650		7	_2AGROVOC _912258 _aMethane
650		7	_2AGROVOC _924513 _aRedox potential
650		7	_2AGROVOC _924514 _aOxidoreductions
650		7	_2AGROVOC _924515 _aBioreactors
650		7	_2AGROVOC _924516 _aActivated carbon
700	1		_aRico, C. _924517
700	1		_aCanto-Canché, B. _924518
700	1		_aDomínguez-Maldonado, J.A. _924519
700	1		_aTapia-Tussell, R. _924520
700	1		_aCortes-Velazquez, A. _924521
700	1		_aAlzate-Gaviria, L. _924522
773	0		_tEnergies _gv. 11, no. 8, art. 2101 _dBasel (Switzerland) : MDPI, 2018. _x1996-1073
856	4		_yClick here to access online _uhttps://doi.org/10.3390/en11082101
942			_cJA _n0 _2ddc
999			_c64470 _d64462