Results 171 to 180 of about 3,114 (198)
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Anaerobic fermentation of whey : acidogenesis
2010Based on the initial exploratory results of single-phase (acidogenesis and methanogenesis takes place in one vessel) whey biomethanation studies, a two-phase (acidogenesis and methanogenesis takes place in two separated serial vessels) biomethanation process was found to be more suitable for dealing with the current whey utilisation and/or disposal ...
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Acidogenesis of cellulosic hydrolysates for new generation biofuels
Biomass and Bioenergy, 2016Abstract This article presents a comprehensive review on hydrolysis and acidogenesis of lignocellulosic waste biomass and makes clear new perspectives in biofuel research. Specifically, the acidogenesis of lignocellulosics and liquid effluent have been discussed extensively with potential goal the production of a new generation biofuel.
Panagiotis Kandylis +6 more
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High-rate anaerobic hydrolysis and acidogenesis of sewage sludge in a modified upflow reactor
Water Science and Technology, 2003 Continuous experiments were conducted to study the hydrolysis and acidogenesis of sewage sludge in an upflow reactor with an agitator and a gas-liquid-solid separator.
H.-Q. Yu +3 more
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Maximization of acetic acid production in partial acidogenesis of swine wastewater
Biotechnology and Bioengineering, 2001AbstractSwine wastewater was biologically treated to produce short‐chain volatile organic acids (VOAs) in laboratory‐scale continuously stirred tank reactors. The maximum production rates of acetic and butyric acids associated with simultaneous changes in pH and hydraulic retention time (HRT) were investigated, in which the degree of acidification of ...
Hwang, S, Lee, Y, Yang, KY
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Maximization of volatile fatty acids production from alginate in acidogenesis
Bioresource Technology, 2013In this study, the response surface methodology (RSM) was applied to determine the optimum fermentative condition of alginate with the respect to the simultaneous effects of alginate concentration and initial pH to maximize the production of total volatile fatty acids (TVFAs) and alcohols.
Pham, Hong Duc +4 more
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Anaerobic acidogenesis of primary sludge: The role of solids retention time
Biotechnology and Bioengineering, 1994AbstractThis research investigates the effect of solids retention time (SRT) on the acid‐phase anaerobic digestion of primary sludge. A series of experiments were conducted using two continuous‐flow 3‐L units with the following configuration: a completely mixed reactor (CMR) with clarifier and solids recycle and an upflow anaerobic sludge blanket (UASB)
P, Elefsiniotis, W K, Oldham
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Acidogenesis and Two‐Phase Codigestion of Fats, Oils, and Greases and Municipal Biosolids
Water Environment Research, 2013ABSTRACT: Acidogenic codigestion of fats, oils, and greases (FOG) was studied using suspended growth sludge digesters operated as batch fed reactors that were fed twice daily. The digesters were maintained at a 2‐day retention time and at 37 °C to mimic the acid phase of an acid‐gas digestion system. As FOG loading rates increased, volatile fatty acid (
Ross, Varin, John, Novak, Charles, Bott
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Effect of xylitol and sorbitol on plaque acidogenesis.
Quintessence international (Berlin, Germany : 1985), 2009To evaluate the in vivo potential of xylitol to reduce plaque acidogenicity in comparison to sorbitol.After completing a questionnaire on general health, smoking, diet, and oral hygiene habits, 61 dentate adults refrained from oral hygiene for 3 days before the clinical baseline examination, which included decayed, missing, and filled teeth (DMFT ...
Christian H, Splieth +4 more
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Effect of heavy metals on acidogenesis in anaerobic digestion
Water Research, 1993The effects of chromium, cadmium, lead, copper, zinc and nickel on volatile fatty acid (VFA) production in anaerobic digestion were studied using serum bottle assays. Glucose acclimated seed sludge was used. The relative toxicity of heavy metals to production of acetic acid (HAc) and n-butyric acid (n-HBu) was Cu > Zn > Cr > Cd > Pb > Ni and Cu > Zn ...
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Laboratory Research of Hydrolysis-Acidogenesis Process of Primary Sludge
Journal of Environmental Engineering, 2019AbstractHydrolysis-acidogenesis of primary sludge is a suitable method to produce readily biodegradable organic matter.
Regimantas Dauknys +2 more
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