Premium
Simultaneous bio‐electricity and bio‐hydrogen production in a continuous flow single microbial electrochemical reactor
Author(s) -
GuadarramaPérez Oscar,
HernándezRomano Jesús,
GarcíaSánchez Liliana,
GutierrezMacias Tania,
EstradaArriaga Edson Baltazar
Publication year - 2018
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.12926
Subject(s) - microbial fuel cell , hydrogen production , hydrogen , electrochemistry , wastewater , electricity generation , pulp and paper industry , chemistry , materials science , chemical engineering , environmental science , electrode , environmental engineering , physics , organic chemistry , thermodynamics , power (physics) , engineering
The purpose of this study was to evaluate the simultaneous production of bio‐electricity and bio‐hydrogen using a novel continuous flow single chamber hydrogen‐producing microbial electrochemical reactor (sMER‐H 2 ). The inocula tested were: raw municipal wastewater (I 1), sporulated Gram‐positive bacteria (I 2), and a mixture of anaerobic granular sludge with sediments thermally pretreated (I 3). The best performance for bioelectrochemical and simultaneous hydrogen production occurred when the inoculum I 3 was tested. The maximum voltage generated with an external resistance of 1000 Ω was 671 mV. The maximum power density and volumetric density obtained in the sMER‐H 2 was 46 mW/m 2 and 6.4 W/m 3 , respectively. The maximum bio‐hydrogen production rate was 5.2 L H 2 /L·d., reaching up to 2.39 mol H 2 /mol sucrose. Using this new configuration of microbial fuel cell, high bio‐electricity and high bio‐hydrogen production were simultaneously generated. © 2018 American Institute of Chemical Engineers Environ Prog, 38: 297–304, 2019