Results 31 to 40 of about 8,986 (253)

Fungal pretreatment of citrus waste improves the hydrolysis and acidogenesis of the organic fraction of urban solids wastes

open access: yesRevista Internacional de Contaminación Ambiental, 2023
This work shows the increase in hydrolysis and acidogenesis of the organic fraction of urban solid waste (OFUSW) by the action of fungal hydrolytic enzymes obtained by solid-state fermentation (SSF) with Aspergillus niger C25B28 on citrus wastes (CW ...
Rosario Mancera-Sandoval   +2 more
semanticscholar   +1 more source

Energy from waste and the food processing industry [PDF]

open access: yes, 2012
The provision of a secure, continuous energy supply is becoming an issue for all sectors of society and the foodprocessingindustry as a major energy user must address these issues.
Benoit   +27 more
core   +1 more source

Tequila vinasses acidogenesis in a UASB reactor with Clostridium predominance [PDF]

open access: yesSpringerPlus, 2015
Tequila vinasses represent an acidic, highly concentrated pollutant effluent generated during the distillation step of Tequila production. Although acidogenesis of Tequila vinasses has been reported for some reactor configurations, a characterization of the bacteria present during this metabolic process is lacking in the literature. Hydraulic retention
Marino-Marmolejo, E N   +5 more
openaire   +2 more sources

Comparison of performance in an anaerobic digestion process: one-reactor vs two-reactor configurations

open access: yesMathematical Biosciences and Engineering, 2019
The present work compares two types of configurations for a two-reaction (acidogenesis and methanogenesis) anaerobic digestion model. These configurations are as follows: (ⅰ) a single bioreactor, where the acidogenesis and methanogenesis reactions occur ...
Andrés Donoso-Bravo   +3 more
doaj   +1 more source

Effect of Aso limonite on anaerobic digestion of waste sewage sludge

open access: yesAMB Express, 2020
The effect of Aso volcanic limonite was explored in anaerobic digestion using waste sewage sludge (WSS). In this study, methane and hydrogen sulfide were remarkably inhibited when Aso limonite was mixed with WSS as well as a significant reduction of ...
Nurul Asyifah Mustapha   +2 more
doaj   +1 more source

Direct interspecies electron transfer enables anaerobic oxidation of sulfide to elemental sulfur coupled with CO2-reducing methanogenesis

open access: yesiScience, 2023
Summary: Electric syntrophy between fatty acid oxidizers and methanogens through direct interspecies electron transfer (DIET) is essential for balancing acidogenesis and methanogenesis in anaerobic digestion.
Heejung Jung, Hyeonjung Yu, Changsoo Lee
doaj   +1 more source

Solubilization of Particulate Cellulose Using Anaerobic Acidogenesis

open access: yesWater Science and Technology, 1992
Hydrolysis and acidogenesis in anaerobic digestion comprises the first step in converting biodegradable particulates into methane gas. The optimum conditions in this stage are different from those for methanogenesis. Results of tests to solubilize organic particulates of a known size distribution are presented and discussed here.
A. D. Levine, Y. T. Chyi
openaire   +1 more source

Coenzyme A-transferase-independent butyrate re-assimilation in Clostridium acetobutylicum - evidence from a mathematical model [PDF]

open access: yes, 2014
The hetero-dimeric CoA-transferase CtfA/B is believed to be crucial for the metabolic transition from acidogenesis to solventogenesis in Clostridium acetobutylicum as part of the industrial-relevant acetone-butanol-ethanol (ABE) fermentation.
A Junelles   +70 more
core   +2 more sources

Constructing metabolic pathways for biogas production at low temperatures through metagenomic and metatranscriptomic analyses

open access: yesNotulae Scientia Biologicae
This study aimed to determine the metabolic pathways based on the abundance of microorganisms and the activity of genetic clusters of orthologous groups of proteins (COGs) involved in biogas production.
BUDIANTO   +4 more
doaj   +1 more source

Ultrasound-assisted hydrolysis and acidogenesis of solid organic wastes in a rotational drum fermentation system [PDF]

open access: yes, 2008
The hydrolysis and acidogenesis of solid organic wastes in a rotational drum fermentation system (RDFS) were improved by direct ultrasonic irradiation (DUSI) and a modified ultrasonic treatment (MUST) composed of dilution, ultrasonic irradiation, and ...
Chen Ling   +6 more
core   +1 more source

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