Results 91 to 100 of about 5,883 (134)

Cultivation of microalgae-bacteria consortium by waste gas-waste water to achieve CO₂ fixation, wastewater purification and bioproducts production. [PDF]

Biotechnol Biofuels Bioprod
Kong W, Kong J, Feng S, Yang T, Xu L, Shen B, Bi Y, Lyu H.   +7 more
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Photofermentation of tequila vinasses by Rhodopseudomonas pseudopalustris to produce hydrogen

International Journal of Hydrogen Energy, 2018
Abstract Hydrogen production by photofermentation of tequila vinasses (VT) was studied using Rhodopseudomonas pseudopalustris DSM 123. To the best of our knowledge this is the first report on hydrogen production by photofermentation on VT. Hydrogen production was doubled on VT (260 m$props_value{literPattern}/L) as compared to a synthetic medium ...
Jose Roberto Ramos-Ibarra, Guadalupe M Guatemala-Morales, Enrique Arriola-Guevara   +2 more
exaly   +6 more sources

Modeling pH and temperature effects on the anaerobic treatment of tequila vinasses

Journal of Chemical Technology and Biotechnology, 2020
AbstractBACKGROUNDAn unstructured mathematical model is proposed to evaluate the effect of key variables on the anaerobic digestion of tequila vinasses and to determine the operating conditions that improve biogas production. Most of the models currently reported do not consider the simultaneous effects of pH and temperature on the process kinetics ...
Jazael G Moguel-Castañeda, Hector Puebla, Hugo O Méndez-Acosta   +2 more
exaly   +3 more sources

Comparative evaluation of the mesophilic and thermophilic biohydrogen production at optimized conditions using tequila vinasses as substrate

International Journal of Hydrogen Energy, 2020
Abstract The objective of this work was to comparatively evaluate the production of biohydrogen (bio-H2) from tequila vinasses at optimized mesophilic and thermophilic conditions and to elucidate the main metabolic routes involved. Optimal temperatures of 35 °C and 55 °C, and pH of 5.5 maximized the bio-H2 production rates, 25.5 ± 0.01 NmL h−1 and ...
Alma Toledo-Cervantes, Jorge Arreola-Vargas, Elías Razo-Flores   +2 more
exaly   +3 more sources

Influence of alkalinity and VFAs on the performance of an UASB reactor with recirculation for the treatment of Tequila vinasses

Environmental Technology (United Kingdom), 2015
The main problem linked to the stability of upflow anaerobic sludge blanket (UASB) reactors during the treatment of Tequila vinasse is the high acidity and the null alkalinity present in this effluent. This research evaluates the effect of alkalinity and volatile fatty acids (VFAs) concentration on the performance of an UASB reactor with recirculation ...
Alberto López-López, Elizabeth León-Becerril   +1 more
exaly   +4 more sources

Tequila vinasses: generation and full scale treatment processes

Reviews in Environmental Science and Biotechnology, 2010
The production of Tequila (55% Alc. Vol.) in Mexico for the year 2008 was 227 million liters, and consequently around 2,270 million liters of Tequila vinasses (TVs) were generated, which without proper treatment is equivalent to the pollution produced by 6.2 million people.
Alberto López-López, Gustavo Davila-Vazquez, Elizabeth León-Becerril   +2 more
exaly   +3 more sources

Sequential Treatment of Tequila Industry Vinasses by Biopolymer-based Coagulation/Flocculation and Catalytic Ozonation

Ozone: Science and Engineering, 2016
ABSTRACTThis article describes the study of the treatment of tequila industry vinasses based on the sequential application of coagulation-flocculation and heterogeneous catalytic ozonation. Coagulation-flocculation treatment used biopolymers to reduce the nondissolved organic matter and to reduce the degree of color units in effluent.
Hector Ferral-Pérez, Isaac Chairez
exaly   +3 more sources

High removal of chemical and biochemical oxygen demand from tequila vinasses by using physicochemical and biological methods

Environmental Technology (United Kingdom), 2014
The goal of this research is to find a more effective treatment for tequila vinasses (TVs) with potential industrial application in order to comply with the Mexican environmental regulations. TVs are characterized by their high content of solids, high values of biochemical oxygen demand (BODs), chemical oxygen demand (COD), low pH and intense colour ...
Gustavo Davila-Vazquez, Iliana Medina-Ramírez, Juan Jáuregui-Rincón   +2 more
exaly   +4 more sources

Mixotrophic growth regime as a strategy to develop microalgal bioprocess from nutrimental composition of tequila vinasses

Bioprocess and Biosystems Engineering, 2021
The selection of a suitable growth regime can increase the physiological performance of microalgae and improve bioprocess based on these microorganisms from agro-industrial residues. Thus, this study assessed the biotechnology capacity-biomass production, biochemical composition, and nutrient uptake-from tequila vinasses (TVs) as the nutrient source of
Francisco J. Choix, José Roberto Ramos-Ibarra, Pedro Mondragón-Cortez, Martha Alicia Lara-González, Eduardo Juárez-Carrillo, Amayaly Becerril-Espinosa, Héctor Ocampo-Alvarez, Jony R. Torres   +7 more
openaire   +3 more sources

New insights into microbial interactions and putative competitive mechanisms during the hydrogen production from tequila vinasses

Applied Microbiology and Biotechnology, 2022
This study aimed to characterize the prokaryotic community and putative microbial interactions involved in hydrogen (H2) production during the dark fermentation (DF) process, applying principal components analysis (PCA) to correlate changes in operational, physicochemical, and biological variables.
Alma Toledo-Cervantes, Hugo Oscar Méndez-Acosta, Jorge Arreola-Vargas, José Eduardo Gabriel-Barajas, Mariana Nohely Aguilar-Mota, Raúl Snell-Castro   +5 more
openaire   +3 more sources