Modelling a full scale UASB reactor using a COD global balance approach and state observers

López, Iván; Borzacconi, Liliana

doi:10.1016/j.cej.2008.05.007

Cited by 21 publications

(10 citation statements)

References 13 publications

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“…COD removal was 46.5 ± 0.41% and LCFA (mainly consisting of palmitic acid and oleic acid) was also consumed about 63.2% (Tables 6, and 7). The acidogenic bacteria in the first step consume the organic substrate and produce volatile fatty acids and CO 2 [11,26]. Wijekoon et al [27] reported the VFA profile variation in the two-stage thermophilic anaerobic membrane bioreactor.…”

Section: The Comparison Of One-stage and Two-stage Anaerobic Digestionmentioning

confidence: 98%

Effect of pH, OLR, and HRT on performance of acidogenic and methanogenic reactors for treatment of biodiesel wastewater

Boonsawang

Rerngnarong

Tongurai

et al. 2015

Desalination and Water Treatment

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A B S T R A C TTwo-stage anaerobic process was studied in order to treat biodiesel wastewater. The first stage represented acidogenic reactor while the second stage was methanogenic reactor. The effect of pH, hydraulic retention time (HRT), and organic loading rate (OLR) on performance of both reactors was investigated. The optimum condition was examined using response surface methodology with the Box-Behnken Design. In the acidogenic reactor, the optimum pH, HRT, and OLR were 6.48, 16 h, and 26 g COD/(l d), respectively. High VFA production of 9.35 g/l was achieved with the low methane production. In the methanogenic reactor, the optimum pH, HRT, and OLR were 6.95, 30 h, and 6 g COD/(l d), respectively. Biogas production of 19.1 l/d was obtained with the methane content of 66%. VFA was completely consumed. In comparison, the two-stage system showed higher efficiency (COD removal, biogas production, and methane yield) than the one-stage system.

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Section: The Comparison Of One-stage and Two-stage Anaerobic Digestionmentioning

confidence: 98%

Effect of pH, OLR, and HRT on performance of acidogenic and methanogenic reactors for treatment of biodiesel wastewater

Boonsawang

Rerngnarong

Tongurai

et al. 2015

Desalination and Water Treatment

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show abstract

“…These authors assumed that in the first step, the acidogenic bacteria consume the organic substrate and produce volatile fatty acids and CO 2 (and more bacteria) and next, methanogenic population consumes these acids and produce methane and more microorganisms. The biomass growth obtained by these authors for this reactor gave values as low as 0.01 d -1 [22].…”

Section: Kinetic Evaluationmentioning

confidence: 99%

“…where: The following assumptions were made to obtain equation [2]: (1) A similar approach for separating the hydrolytic-acidogenic and methanogenic steps was developed by López and Borzacconi [22] to simulate an anaerobic digestion process in a full-scale upflow anaerobic sludge blanket reactor. These authors assumed that in the first step, the acidogenic bacteria consume the organic substrate and produce volatile fatty acids and CO 2 (and more bacteria) and next, methanogenic population consumes these acids and produce methane and more microorganisms.…”

Section: Kinetic Evaluationmentioning

confidence: 99%

Kinetic study of the methanogenic step of a two-stage anaerobic digestion process treating olive mill solid residue

Rincón

Borja

Martı́n³

et al. 2010

Chemical Engineering Journal

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“…Anaerobic Digestion Model Alternatives. A simpler model than ADM1 is the anaerobic system model identified as AM2, and this model was calibrated for a UASB reactor treating malting plant effluent by evaluating a COD mass balance to find the resulting stoichiometric coefficients (López and Borzacconi, 2009 Teissier's kinetic equations (Narayanan, 2009). The author observed that the model presents great flexibility and adequately predicts performance as shown by experimental values obtained and compared to model output.…”

Section: Anaerobic Digestion Modelmentioning

confidence: 99%

Anaerobic Processes

Evans¹,

Evans²,

Ulrich³

et al. 2010

Water Environment Research

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The anaerobic processes literature review offers a comprehensive review of the literature published in 2009 on topics relating to water pollution control in systems operating without oxygen and exploiting part of or all of the biochemistry presented in the classic anaerobic system model. Anaerobic systems, like the upflow anaerobic sludge blanket (UASB) reactor and the anaerobic filter (AF), are the traditional emphasis of anaerobic processes literature review. This review is divided into the following sections: modeling advances, hydrogen production, treatability studies, toxicity studies, anammox, integrated approaches, microbiology, and process technology.

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Modelling a full scale UASB reactor using a COD global balance approach and state observers

Cited by 21 publications

References 13 publications

Effect of pH, OLR, and HRT on performance of acidogenic and methanogenic reactors for treatment of biodiesel wastewater

Effect of pH, OLR, and HRT on performance of acidogenic and methanogenic reactors for treatment of biodiesel wastewater

Kinetic study of the methanogenic step of a two-stage anaerobic digestion process treating olive mill solid residue

Anaerobic Processes

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