scholarly journals Improved hydrogen production in the single-chamber microbial electrolysis cell with inhibition of methanogenesis under alkaline conditions

RSC Advances ◽  
2019 ◽  
Vol 9 (52) ◽  
pp. 30207-30215 ◽  
Author(s):  
Wanjun Cui ◽  
Guangli Liu ◽  
Cuiping Zeng ◽  
Yaobin Lu ◽  
Haiping Luo ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Electrolysis Cell ◽  
Microbial Electrolysis Cell ◽  
Single Chamber ◽  
Alkaline Conditions ◽  
Microbial Electrolysis

Effective methanogenesis inhibition was achieved in a single-chamber MEC at pH 11.2 with the H2 percentage of 85–90% for 50 days.

A NEW DESIGN ENHANCES HYDROGEN PRODUCTION BY G. SULFURREDUCENS PCA STRAIN IN A SINGLE-CHAMBER MICROBIAL ELECTROLYSIS CELL (MEC)

2017 ◽  
Vol 79 (5-3) ◽  
Author(s):  
Abudukeremu Kadier ◽  
Mohd Sahaid Kalil ◽  
Azah Mohamed ◽  
Aidil Abdul Hamid
Keyword(s):  
Hydrogen Production ◽  
Applied Voltage ◽  
Renewable Energy Sources ◽  
Geobacter Sulfurreducens ◽  
Electrolysis Cell ◽  
Microbial Electrolysis Cell ◽  
Single Chamber ◽  
Operational Costs ◽  
Wide Range ◽  
Microbial Electrolysis

Microbial electrolysis cell (MEC) is an innovative and green technology to generate hydrogen from a wide range of renewable energy sources and wastewater. At current stage, the performance of these systems is still far from real-world applications. The most likely limiting factors for successful commercialization of this technology are the large internal resistance, high fabrication and operational costs. The aim of the present study was to enhance hydrogen production, reduce the construction and operational costs in MECs via development of a novel MEC design. A single-chamber membrane-free MEC was designed and successfully produced hydrogen from organic substrate using a pure culture: Geobacter sulfurreducens PCA. The MEC system was operated with Platinum (Pt) cathode at applied voltage range of 0.6 V to 1.1 V. Geobacter sulfurreducens PCA strain and sodium acetate used as inoculum and a fuel sources, respectively. The conductivity of electrolyte solution in the MEC was 4.5 mS/cm. Due to an improved the MEC reactor architecture, the maximum hydrogen production rate (HPR) of 3.67 ± 0.03 m3 H2 /m3 d with volumetric current density (IV) of 293.73 ± 1.18 A/m3 was achieved under an external applied voltage (Eap): 1.1 V. The highest overall hydrogen recovery ( ) and overall energy efficiency ( ) were 91.80 ± 1.06% and 66.97 ± 0.09%, respectively. 

Enhancement of hydrogen production in a single chamber microbial electrolysis cell through anode arrangement optimization

2011 ◽  
Vol 102 (23) ◽  
pp. 10881-10885 ◽  
Author(s):  
Da-Wei Liang ◽  
Si-Kan Peng ◽  
Shan-Fu Lu ◽  
Yan-Yan Liu ◽  
Fei Lan ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Electrolysis Cell ◽  
Microbial Electrolysis Cell ◽  
Single Chamber ◽  
Microbial Electrolysis

Hydrogen production in single-chamber microbial electrolysis cell under high applied voltages

2021 ◽  
Vol 780 ◽  
pp. 146597
Author(s):  
Wanjun Cui ◽  
Yaobin Lu ◽  
Cuiping Zeng ◽  
Jialiang Yao ◽  
Guangli Liu ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Electrolysis Cell ◽  
Microbial Electrolysis Cell ◽  
Single Chamber ◽  
Microbial Electrolysis
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