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Kinetics of Biotransformation of 2,4-Dichlorophenol using UASB-Reactor
Environmental Monitoring and Assessment, 2004Chlorophenol compounds are environmental pollutants that are both anthropogenic and xenobiotics. Some of these chemicals are carcinogens and are both toxic to a number biochemical processes. Biotransformation of 2,4-dichlorophenol (2,4-DCP) was studied in the presence of glucose on an upflow anaerobic sludge blanket reactor (UASB) using mixed culture ...
E I, Atuanya, T, Chakrabarti
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Full Scale UASB Reactor Performance in the Brewery Industry
Environmental Technology, 2001In this paper the 7 year experience of the Oriental Breweries, located in Kumi, Korea utilizing a full-scale upflow anaerobic sludge blanket (UASB) reactor for the anaerobic pretreatment of brewery wastewater is presented. The anaerobic pretreatment system selected has successfully achieved the desired treatment efficiency for the brewery wastewater ...
Y H, Ahn, K S, Min, R E, Speece
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Anaerobic digestion of baker's yeast wastewater using a UASB reactor and a hybrid UASB reactor
2010The start-up and step-up operation of two 16-liter, continuously operated, upflow anaerobic reactors receiving baker's yeast wastewater is presented in this thesis. The two reactors (A and B) were almost identical in construction. Reactor A was a conventional upflow anaerobic sludge blanket (UASB) reactor, and reactor B was a hybrid reactor.
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Sludge blanket of UASB reactor: Mathematical simulation
Water Research, 1997Blanket height is an important aspect of UASB reactor design. It regulates the solid concentration reaching the gas-solid separator (GSS) and, thereby, prevents sludge washout. The maximum organic load which a reactor can assimilate depends on proper proportioning of the reactor height into the bed and blanket. A condition of force equilibrium has been
S.K. Narnoli, Indu Mehrotra
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High strength sewage treatment in a UASB reactor and an integrated UASB-digester system
Bioresource Technology, 2008The treatment of high strength sewage was investigated in a one-stage upflow anaerobic sludge blanket (UASB) reactor and a UASB-digester system. The one-stage UASB reactor was operated in Palestine at a hydraulic retention time (HRT) of 10h and at ambient air temperature for a period of more than a year in order to asses the system response to the ...
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Anaerobic treatment of leachates in UASB reactors
Journal of Chemical Technology & Biotechnology, 1992AbstractLeachates from the solid urban wastes landfill of Asturias were characterized and treated in upflow anaerobic sludge blanket laboratory reactors. The highest percentage of COD removal was 88% for a hydraulic retention time of 2–4 days. Gas production was close to the theoretical values, with CH4 content up to 88%.
José Berrueta, Leonor Castrillón
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Dispersion analysis of an acidogenic UASB reactor
Chemical Engineering Journal, 2008The dispersion behavior of an upflow anaerobic sludge blanket (UASB) reactor for acidogenesis was investigated, and its flow patterns were simulated. Compared with the single-zone axial-dispersion model (with squared difference from 130 to 450), a two-zone axial-dispersion model (with squared difference from 1 to 7) was found to be more appropriate for
Ren, Ting-Ting +4 more
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Domestic wastewater treatment using a UASB reactor
Bioresource Technology, 1997Abstract The performance of a pilot-scale (55-l) upflow sludge blanket (UASB) reactor treating municipal sewage without any supplementary heating was examined in a 200-day trial. The flow rate to the digester was kept constant, giving a hydraulic retention time of 7.6 h.
E. Behling +7 more
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Hydraulic Impact on Granules in UASB Reactors
Water Quality Research Journal, 1991Abstract 20 Litre UASB reactors, operated continuously, were used to study hydrodynamic influences on accumulation and settling characteristics of granules. Two experiments were performed. The effect of liquid upflow velocity in the reactor on granules was investigated in Experiment 1.
D. Maat +4 more
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[Start-up of full-scale UASB reactors].
Huan jing ke xue= Huanjing kexue, 2002The UASB reactors treating high-temperature citric acid wastewater could be started up in the alternation of mesophilic and thermophilic ranges because the local climate changed greatly by seasons. The reactors were started up in mesophilic range, and the total efficiency of the two-stage reactors reached 77%-86%; when the temperature of reactors ...
J, Wu, F, Sheng, Z, Lu
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