Dry-thermophilic anaerobic digestion of organic fraction of municipal solid waste: Methane production modeling

Fdez-Güelfo, L.A.; Álvarez-Gallego, Carlos José; Sales, D.; Romero, L.I.

doi:10.1016/j.wasman.2011.11.002

Cited by 44 publications

(19 citation statements)

References 25 publications

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“…Various mathematical models have been proposed to describe substrate and biomass concentrations as well as biogas production in a batch or continuous process reactor [14,19,48]. Among these models for anaerobic digestion, that of Ghaly et al [20] was found to be suitable for our study.…”

Section: Ghaly Et Al Modelmentioning

confidence: 99%

“…The ultimate methane yield coefficient B o is assumed to be constant based on the literature survey. Studies have shown that B o depends on the organic loading rate (OLR), which is the sludge or hydraulic retention time used during the treatment of brewery wastewater [32,19]. Oktem and Tufekei [32] investigated a pilot scale UASB reactor for the treatment of brewery wastewater in the mesophilic range.…”

mentioning

confidence: 99%

“…In addition, the value of K, according to the Monod equation, may be associated with the ability of microorganisms to degrade the substrate present in the waste to produce methane. A high K value is an indication that the microorganisms present in the reactor have greater difficulty in converting the organic matter to methane [19]. The physicochemical parameters such as temperature have been shown to be the primary factors affecting μ max .…”

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confidence: 99%

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Anaerobic Digestion Model to Enhance Treatment of Brewery Wastewater for Biogas Production Using UASB Reactor

Enitan

Adeyemo

Swalaha

et al. 2015

Environ Model Assess

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Biogas produced from an upflow anaerobic sludge blanket (UASB) reactor is a clean and an environmentally friendly by-product that could be used to meet partial energy needs. In this study, a modified methane generation model (MMGM) was developed on the basis of mass balance principles to predict and increase methane production rate in a UASB reactor during anaerobic fermentation of brewery wastewater. Model coefficients were determined using the data collected from a full-scale reactor. The results showed that the composition of wastewater and operational conditions of the reactor strongly influence the kinetics of the digestion process. Simulation of the reactor process using the model was used to predict the effect of organic loading rate and temperature on methane production with an optimum methane production at 29°C and 8.26 g COD/L/day. Methane production rate increased from 0.29 to 1.46 L CH 4 /g COD, when the loading rate was increased from 2.0 to 8.26 g COD/L/day. The results showed the applicability of MMGM to predict usable methane component of biogas produced during anaerobic digestion of brewery wastewater. This study would help industries to predict and increase the generation of renewable energy by improving methane production from a UASB reactor. To the best of our knowledge, MMGM is the first reported developed model that could serve as a predictive tool for brewery wastewater treatment plant available in the literature.

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Section: Ghaly Et Al Modelmentioning

confidence: 99%

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confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Anaerobic Digestion Model to Enhance Treatment of Brewery Wastewater for Biogas Production Using UASB Reactor

Enitan

Adeyemo

Swalaha

et al. 2015

Environ Model Assess

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“…The generation and immigration of landfill gases (LFGs) and the controlling methods were first studied (Chai et al, 2010), and then carbon emissions were widely considered with respect to source separation, waste collection routine, treatment technologies (e.g., landfill, incineration, compost, anaerobic digestion of organic fraction of MSW, etc.) and decision-making tools (Calabrņ , 2009;Bastin and Longden, 2009;Mühle et al, 2010;Fdez-Güelfo et al, 2012). The municipal solid waste (MSW) greenhouse gas (GHG) emissions and carbon footprint were chosen as important indicators for evaluating the efficiency of the MSWM system in previous studies (Khoo et al, 2010;Couth and Trois, 2010).…”

Section: Introductionmentioning

confidence: 99%

Modeling the carbon cycle of the municipal solid waste management system for urban metabolism

Zhou

Huang

Cao

et al. 2015

Ecological Modelling

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a b s t r a c tMunicipal solid waste management is one of the key subsystems of urban metabolism, which significantly impacts urban carbon cycles. A conceptual model for analyzing the carbon cycle of the municipal solid waste management system was established based on the theory of urban metabolism with regard to urban carbon cycling. The model includes horizontal fluxes, vertical fluxes and carbon stocks of the waste managing processes such as waste collection, transportation, treatment and disposal. The current carbon cycling of the municipal solid waste management system and two other scenarios were analyzed using a Jingmen City case study. The results indicate that the input horizontal flux in municipal solid waste between 1989 and 2004 was 293.47 Gg. Among all of the considered scenarios, the landfill formed the largest carbon stocks; incineration showed the largest vertical fluxes of carbon dioxide, and source separation and integrated technologies decreased carbon emissions by adding new carbon sources to the urban system. Improving municipal solid waste management using techniques, such as waste minimization, source separation, recycling, technical innovations of incineration, compost and digestion of organic waste, landfill mining, etc., could impact the urban carbon cycle by reducing carbon emissions.

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“…Recently, Linke [19] and Momoh and Nwaogazie [2] applied a first order biogas yield model in sizing continuous stirred tank and batch reactors respectively. In addition, the development of simplified kinetic models for more specific waste such as, organic fraction of municipal solid waste (OFMSW) has been reported , however, these simplified models were based on maximum specific bacteria growth rate (μ max ) [20,21].…”

Section: Introductionmentioning

confidence: 99%

Development of simplified anaerobic digestion models (SADM's) for studying anaerobic biodegradability and kinetics of complex biomass

Momoh

Anyata

Saroj

2013

Biochemical Engineering Journal

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Dry-thermophilic anaerobic digestion of organic fraction of municipal solid waste: Methane production modeling

Cited by 44 publications

References 25 publications

Anaerobic Digestion Model to Enhance Treatment of Brewery Wastewater for Biogas Production Using UASB Reactor

Anaerobic Digestion Model to Enhance Treatment of Brewery Wastewater for Biogas Production Using UASB Reactor

Modeling the carbon cycle of the municipal solid waste management system for urban metabolism

Development of simplified anaerobic digestion models (SADM's) for studying anaerobic biodegradability and kinetics of complex biomass

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