Converting mesophilic upflow sludge blanket (UASB) reactors to thermophilic by applying axenic methanogenic culture bioaugmentation
نویسندگان
چکیده
منابع مشابه
Upflow Anaerobic Sludge Blanket (uasb) Reactor in Wastewater Treatment
Under anaerobic conditions, organic pollutants in wastewater are degraded by microbes producing methane and carbon dioxide. The degradation process is effective compared to the more conventional aerobic processes and produces only 5-10% of sludge. This saves considerably on cost associated with the sludge disposal. Among anaerobic technologies, the most popular ones is the upflow anaerobic slud...
متن کاملComparative performance of mesophilic and thermophilic acidogenic upflow reactors
Two anaerobic acidogenic reactors, one mesophilic (37 8C) and one thermophilic (55 8C), were operated with a synthetic wastewater at a series of organic loading rates (OLRs). There was almost no difference between the two reactors for chemical oxygen demand (COD) reduction, and degree of acidification at any given OLRs. However, the thermophilic reactor had a higher substrate degradation rate, ...
متن کاملComplete Genome Sequence of Methanoregula formicica SMSPT, a Mesophilic Hydrogenotrophic Methanogen Isolated from a Methanogenic Upflow Anaerobic Sludge Blanket Reactor
Methanoregula formicica SMSP(T) is a mesophilic H2/formate-utilizing methanogenic archaeon and a representative of the family Methanoregulaceae, a recently proposed novel family within the order Methanomicrobiales. Here, we report a 2.8-Mb complete genome sequence of this methanogenic archaeon.
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Experiments were performed in parallel using six identical UASB (upflow anaerobic sludge blanket) reactors to examine the effects of iron (Fe2+) on sludge granulation during start-up. Introduction of Fe2+ at concentrations of 300 and 450 mg/L enhanced the granulation process in UASB reactors, while dosage of Fe2+ (150 mg/L) had little effect on the sludge granulation. The Fe2+concentration in g...
متن کاملBiomethane production from vinasse in upflow anaerobic sludge blanket reactors inoculated with granular sludge
The main objective of this study was to evaluate the anaerobic conversion of vinasse into biomethane with gradual increase in organic loading rate (OLR) in two upflow anaerobic sludge blanket (UASB) reactors, R1 and R2, with volumes of 40.5 and 21.5L in the mesophilic temperature range. The UASB reactors were operated for 230 days with a hydraulic detection time (HDT) of 2.8d (R1) and 2.8-1.8d ...
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ژورنال
عنوان ژورنال: Chemical Engineering Journal
سال: 2018
ISSN: 1385-8947
DOI: 10.1016/j.cej.2017.09.113