Comparison of Anaerobic Degradation Processes for Bioenergy Generation from Liquid Fraction of Pressed Solid Waste

Rózsenberszki, Tamás; Koók, László; Hutvágner, D.; Nemestóthy, Nándor; Bélafi–Bakó, Katalin; Bakonyi, Péter; Kurdi, Róbert; Sarkady, Attila

doi:10.1007/s12649-015-9379-y

Cited by 30 publications

(23 citation statements)

References 35 publications

(40 reference statements)

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“…Mesophilic anaerobic sludge (with initial COD and pH of 17 g L -1 and 7.5, respectively) collected from a local biogas plant was used for the inoculation of the plexi-made MFCs which were constructed with a total working volume of 60 mL of each chamber (Koók et al, 2016, Rózsenberszki et al, 2015. The schematic diagram of the MFC can be seen in Fig.…”

Section: Mfc Setupmentioning

confidence: 99%

“…A 100 Ω resistor was inserted in the external circuit to record the potential difference between the two electrodes. More details regarding the MFC set-up can be found in our earlier publications (Koók et al, 2016, Rózsenberszki et al, 2015. The start-up experiences with various substrate (sodium acetate, glucose) feedings is discussed in Section 3.1.…”

Section: Mfc Setupmentioning

confidence: 99%

“…1 and 2, respectively (specified relationships based on Koók et al, 2016;Rózsenberszki et al, 2015):…”

Section: Analysis and Calculationsmentioning

confidence: 99%

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Performance evaluation of microbial electrochemical systems operated with Nafion and supported ionic liquid membranes

et al. 2017

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In this work, the performance of dual-chamber microbial fuel cells (MFCs) constructed either with commonly used Nafion proton exchange membrane or supported ionic liquid membranes (SILMs) was assessed. The behavior of MFCs was followed and analyzed by taking the polarization curves and besides, their efficiency was characterized by measuring the electricity generation using various substrates such as acetate and glucose. By using the SILMs containing either [Cmim][PF] or [Bmim][NTf] ionic liquids, the energy production of these MFCs from glucose was comparable to that obtained with the MFC employing polymeric Nafion and the same substrate. Furthermore, the MFC operated with [Bmim][NTf]-based SILM demonstrated higher energy yield in case of low acetate loading (80.1 J g COD m h) than the one with the polymeric Nafion N115 (59 J g COD m h). Significant difference was observed between the two SILM-MFCs, however, the characteristics of the system was similar based on the cell polarization measurements. The results suggest that membrane-engineering applying ionic liquids can be an interesting subject field for bioelectrochemical system research.

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Section: Mfc Setupmentioning

confidence: 99%

Section: Mfc Setupmentioning

confidence: 99%

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Performance evaluation of microbial electrochemical systems operated with Nafion and supported ionic liquid membranes

et al. 2017

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“…In 2016, two billion tonnes of municipal solid waste were generated, and the production is expected to grow to 3.40 billion tonnes within 2050 [1]. About of 50% of waste comprises plastic, paper, cardboard, and metal, while a percentage between 35%-40% is made up of organic waste [2,3]. Therefore, a large quantity of organic fraction of municipal solid waste (OFMSW) is generated due to the wide implementation of recycling.…”

Section: Introductionmentioning

confidence: 99%

Biogas Generation through Anaerobic Digestion of Compost Leachate in Semi-Continuous Completely Stirred Tank Reactors

et al. 2019

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The composting process of organic fraction of municipal solid waste, besides to the residual compost, generates a wastewater that is characterized by a high organic load. The application of anaerobic processes represents an advantageous solution for the treatment and valorization of this type of wastewater. Nevertheless, few works have been focused on the anaerobic digestion of compost leachate. To overcome this dearth, in the present paper an extensive experimental investigation was carried out to develop and analyse the anaerobic treatment of young leachate in completely stirred tank reactors (CSTR). Initially, it was defined a suitable leachate pretreatment to correct its acidic characteristics that is potentially able to inhibit methanogenic biomass activity. The pretreated leachate was fed to the digester over the start-up phase that was completed in about 40 days. During the operational period, the organic load rate (OLR) changed between 4.25 kgCOD/m3d and 38.5 kgCOD/m3d. The chemical oxygen demand (COD) abatement was higher than 90% for OLR values up to 14.5 kgCOD/m3d and around to 80% for applied loads equal to 24.5 kgCOD/m3d. At this OLR, it was reached the maximum daily biogas production of about 9.3 Lbiogas/(Lreactord). The CH4 fraction was between 70%–78% and the methane production yield in the range 0.34–0.38 LCH4/gCODremoved. The deterioration of biogas production started for OLR values that were over the threshold of 24.5 kgCOD/m3d when a volatile fatty acids (VFA) accumulation occurred and the pH dropped below 6.5. The maximum ratio between VFA and alkalinity (ALK) tolerable in the CSTR was identified to be 0.5 gCH3COOH/gCaCO3. Through an economic analysis, it was proven that the digestion of compost leachate could ensure significant economic profits. Furthermore, the produced digestate had characteristics that were compatible for agricultural applications.

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“…Extensive LCA work is needed to assess the environmental performance of gas production from the renewable source of waste, including thermal and biological technologies. In particular, the technological and environmental assessments of thermal technologiesmainly gasification-treating MSW for Bio-SNG production are rarely analysed in literature, whereas more studies focus on the analysis biological processes treating biomass, including, for example, anaerobic degradation processes of the liquid fraction of pressed solid waste (Koók et al, 2016;Rózsenberszki et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Life cycle assessment of conventional and advanced two-stage energy-from-waste technologies for methane production

Tagliaferri

Evangelisti

Clift

et al. 2016

Journal of Cleaner Production

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This study integrates the Life Cycle Assessment (LCA) of thermal and biological technologies for municipal solid waste management within the context of renewable resource use for methane production. Five different scenarios are analysed for the UK, the main focus being on advanced gasification-plasma technology for Bio-Substitute natural gas (Bio-SNG) production, anaerobic digestion and incineration. Firstly, a waste management perspective has been taken and a functional unit of 1 kg of waste to be disposed was used; secondly, according to an energy production perspective a functional unit of 1 MJ of renewable methane produced was considered. The first perspective demonstrates that when the current energy mix is used in the analysis (i.e. strongly based on fossil resources), processes with higher electric efficiency determine lower global warming potential (GWP). However, as the electricity mix in the UK becomes less carbon intensive and the natural gas mix increases the carbon intensity, processes with higher Bio-SNG yield are shown to achieve a lower global warming impact within the next 20 years. When the perspective of energy production is taken, more efficient technologies for renewable methane production give a lower GWP for both current and future energy mix. All other LCA indicators are also analysed and the hot spot of the anaerobic digestion process is performed.

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Comparison of Anaerobic Degradation Processes for Bioenergy Generation from Liquid Fraction of Pressed Solid Waste

Cited by 30 publications

References 35 publications

Performance evaluation of microbial electrochemical systems operated with Nafion and supported ionic liquid membranes

Performance evaluation of microbial electrochemical systems operated with Nafion and supported ionic liquid membranes

Biogas Generation through Anaerobic Digestion of Compost Leachate in Semi-Continuous Completely Stirred Tank Reactors

Life cycle assessment of conventional and advanced two-stage energy-from-waste technologies for methane production

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