Prokaryotic population dynamics and interactions in an AnSBBR using as substrate tequila vinasses in co‐digestion with acid hydrolysates of Agave tequilana var. azul bagasse for hydrogen production

2021 ◽  
Author(s):  
J.E. Gabriel‐Barajas ◽  
J. Arreola‐Vargas ◽  
A. Toledo‐Cervantes ◽  
H.O. Méndez‐Acosta ◽  
J.C. Rivera‐González ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Hydrogen Production ◽  
Agave Tequilana ◽  
Tequila Vinasses

Evaluation of semi-continuous hydrogen production from enzymatic hydrolysates of Agave tequilana bagasse: Insight into the enzymatic cocktail effect over the co-production of methane

2018 ◽  
Vol 43 (31) ◽  
pp. 14193-14201 ◽  
Author(s):  
Alma Toledo-Cervantes ◽  
Jorge Arreola-Vargas ◽  
Silvia V. Elias-Palacios ◽  
Erika N. Marino-Marmolejo ◽  
Gustavo Davila-Vazquez ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Agave Tequilana ◽  
Enzymatic Hydrolysates ◽  
Insight Into

Population Dynamics of the Agave Scale, Acutaspis agavis (Hemiptera: Diaspididae), on Agave tequilana var.azul(Agavaceae) in Central Mexico

2008 ◽  
Vol 33 (4) ◽  
pp. 289-298 ◽  
Author(s):  
Manuel Darío Salas-Araiza ◽  
Robert W. Jones ◽  
Genaro Montesinos-Silva ◽  
Eduardo Salazar-Solís ◽  
Luis Antonio Parra-Negrete ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Central Mexico ◽  
Agave Tequilana

Biohydrogen production from tequila vinasses using a fixed bed reactor

2014 ◽  
Vol 70 (12) ◽  
pp. 1919-1925 ◽  
Author(s):  
Germán Buitrón ◽  
Dorian Prato-Garcia ◽  
Axue Zhang
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Production ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Organic Load ◽  
Hydrogen Yield ◽  
Equivalent Mass ◽  
Acidic Conditions ◽  
Fermentative Process ◽  
Tequila Vinasses

In Mexico, the industrial production of tequila leads to the discharge of more than 31.2 million of m3 of vinasse, which causes serious environmental issues because of its acidity, high organic load and the presence of recalcitrant compounds. The aim of this research was to study the feasibility of a fixed bed reactor for the production of biohydrogen by using tequila vinasse as substrate. The experiments were carried out in a continuous mode under mesophilic and acidic conditions. The maximum hydrogen yield and hydrogen production rate were 1.3 mol H2 mol/mol glucose and 72 ± 9 mL H2/(Lreactor h), respectively. Biogas consisted of carbon dioxide (36%) and hydrogen (64%); moreover methane was not observed. The electron-equivalent mass balance fitted satisfactorily (sink of electrons from 0.8 to 7.6%). For vinasses, hydrogen production accounted for 10.9% of the total available electron-equivalents. In the liquid phase, the principal metabolites identified were acetic, butyric and iso-butyric acids, which indicated a butyrate–acetate type fermentation. Tequila vinasses did not result in potential inhibition of the fermentative process. Considering the process as a water treatment system, only 20% of the original carbon was removed (as carbon dioxide and biomass) when the tequila vinasses are used.

Bio-hydrogen production from tequila vinasses: Effect of detoxification with activated charcoal on dark fermentation performance

2019 ◽  
Vol 44 (60) ◽  
pp. 31860-31872 ◽  
Author(s):  
Manuel García-Becerra ◽  
Marcos Macías-Muro ◽  
Luis Arellano-García ◽  
Oscar Aguilar-Juárez
Keyword(s):  
Hydrogen Production ◽  
Activated Charcoal ◽  
Dark Fermentation ◽  
Fermentation Performance ◽  
Tequila Vinasses

Continuous hydrogen production from enzymatic hydrolysate of Agave tequilana bagasse: Effect of the organic loading rate and reactor configuration

2017 ◽  
Vol 313 ◽  
pp. 671-679 ◽  
Author(s):  
Carlos Alberto Contreras-Dávila ◽  
Hugo Oscar Méndez-Acosta ◽  
Luis Arellano-García ◽  
Felipe Alatriste-Mondragón ◽  
Elías Razo-Flores
Keyword(s):  
Hydrogen Production ◽  
Loading Rate ◽  
Organic Loading Rate ◽  
Agave Tequilana ◽  
Organic Loading ◽  
Enzymatic Hydrolysate ◽  
Reactor Configuration

Utilization of electrical charges in the pores of tofu waste for hydrogen production in water

2020 ◽  
pp. 124-135
Author(s):  
I. N. G. Wardana ◽  
N. Willy Satrio
Keyword(s):  
Magnetic Field ◽  
Hydrogen Production ◽  
Sodium Bicarbonate ◽  
Positive Charge ◽  
Electrical Energy ◽  
Hydrogen Sensor ◽  
Water Molecules ◽  
Partial Charge ◽  
Delocalized Electron ◽  
Water Hydrogen

Tofu is main food in Indonesia and its waste generally pollutes the waters. This study aims to change the waste into energy by utilizing the electric charge in the pores of tofu waste to produce hydrogen in water. The tofu pore is negatively charged and the surface surrounding the pore has a positive charge. The positive and negative electric charges stretch water molecules that have a partial charge. With the addition of a 12V electrical energy during electrolysis, water breaks down into hydrogen. The test was conducted on pre-treated tofu waste suspension using oxalic acid. The hydrogen concentration was measured by a MQ-8 hydrogen sensor. The result shows that the addition of turmeric together with sodium bicarbonate to tofu waste in water, hydrogen production increased more than four times. This is due to the fact that magnetic field generated by delocalized electron in aromatic ring in turmeric energizes all electrons in the pores of tofu waste, in the sodium bicarbonate, and in water that boosts hydrogen production. At the same time the stronger partial charge in natrium bicarbonate shields the hydrogen proton from strong attraction of tofu pores. These two combined effect are very powerful for larger hydrogen production in water by tofu waste.

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