Results 201 to 210 of about 8,986 (253)
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Thermodynamic analysis of product formation in mesophilic acidogenesis of lactose
Biotechnology and Bioengineering, 2004AbstractThermodynamic analysis on the acidogenesis of lactose was performed to evaluate the different acidogenic patterns and mechanisms by using Gibbs free energy calculation. Batch acidogenesis of lactose was investigated by using an enriched culture at 37°C, pH 5.5 and varied substrate levels.
Yu, HQ, Fang, HHP, Mu, Y
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Nickel and cadmium inhibition in acidogenesis during anaerobic digestion
Journal of Environmental Science and Health . Part A: Environmental Science and Engineering and Toxicology, 1995Abstract The inhibition of cadmium and nickel ions on the acidogenesis stage in anaerobic treatment was investigated in this study. The anaerobic culture was first acclimated to a glucose substrate in semi‐continuous anaerobic reactors. Inhibition of metal ions were investigated by batch experiments.
Orhan Yenigün +2 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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Volatile fatty acids distribution during acidogenesis of algal residues with pH control
World Journal of Microbiology and Biotechnology, 2013The anaerobic acidification of protein-rich algal residues with pH control (4, 6, 8, 10) was studied in batch reactors, which was operated at mesophilic(35 °C) condition. The distribution of major volatile fatty acids (VFAs) during acidogenesis was emphasized in this paper.
Yan, Li +6 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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Surfactant-enhanced anaerobic acidogenesis of Canna indica L. by rumen cultures
Bioresource Technology, 2008Polyoxyethylene sorbitan monoolate (Tween 80) was used to enhance the anaerobic acidogenesis of Canna indica L. (canna) by rumen culture in this study. Dose of Tween 80 at 1 ml/l enhanced the volatile fatty acids (VFA) production from the acidogenesis of canna compared to the control.
Zheng-Bo, Yue +4 more
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Continuous acidogenesis of sucrose, raffinose and vinasse using mineral kissiris as promoter
Bioresource Technology, 2015The use of kissiris as promoter (culture immobilization carrier) in anaerobic acidogenesis of sucrose, raffinose and vinasse is reported. Initially, the effect of pH (4-8) and fermentation temperature (18-52 °C) on the accumulation of low molecular weight organic acids (OAs) during sucrose acidogenesis, was evaluated.
Katerina, Lappa +7 more
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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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Kinetics of thermophilic acidogenesis of typical Brazilian sugarcane vinasse
Energy, 2016Abstract The kinetics of the acidogenic phase during anaerobic digestion of sugarcane vinasse in differential reactors containing immobilized cells was investigated. The maximum substrate conversion rate (r max ), substrate saturation constant (K s ) and constant of inhibition by excess substrate (K is ) were determined using vinasse with and without
Mirian Harumi Koyama +3 more
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