Valorization of the Liquid Fraction of a Mixture of Livestock Waste and Cheese Whey for Biogas Production Through High-rate Anaerobic Co-digestion and for Electricity Production in a Microbial Fuel Cell (MFC)

Michalopoulos, Ioannis; Chatzikonstantinou, D; Mathioudakis, Dimitrios; Vaiopoulos, I.; Tremouli, Asimina; Γεωργιοπούλου, Μάρθα; Παπαδοπούλου, Κωνσταντίνα; Lyberatos, Gérasimos

doi:10.1007/s12649-017-9974-1

Cited by 14 publications

(10 citation statements)

References 32 publications

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“…Biomethane is usually produced by methanogens using acetate, formate, and hydrogen obtained from pure compounds or various biowastes as substrates in an anaerobic reactor [87,88]. The first route (acetate substrate) is operated by acetoclastic methanogens while the second route (using H 2 substrate) is by hydrogenotrophic methanogenesis [89].…”

Section: Biogasmentioning

confidence: 99%

Electro-Fermentation in Aid of Bioenergy and Biopolymers

et al. 2018

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Abstract:The soaring levels of industrialization and rapid progress towards urbanization across the world have elevated the demand for energy besides generating a massive amount of waste. The latter is responsible for poisoning the ecosystem in an exponential manner, owing to the hazardous and toxic chemicals released by them. In the past few decades, there has been a paradigm shift from "waste to wealth", keeping the value of high organic content available in the wastes of biological origin. The most practiced processes are that of anaerobic digestion, leading to the production of methane. However; such bioconversion has limited net energy yields. Industrial fermentation targeting value-added bioproducts such as-H 2 , butanediols; polyhydroxyalkanoates, citric acid, vitamins, enzymes, etc. from biowastes/lignocellulosic substrates have been planned to flourish in a multi-step process or as a "Biorefinery". Electro-fermentation (EF) is one such technology that has attracted much interest due to its ability to boost the microbial metabolism through extracellular electron transfer during fermentation. It has been studied on various acetogens and methanogens, where the enhancement in the biogas yield reached up to 2-fold. EF holds the potential to be used with complex organic materials, leading to the biosynthesis of value-added products at an industrial scale.

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Section: Biogasmentioning

confidence: 99%

Electro-Fermentation in Aid of Bioenergy and Biopolymers

et al. 2018

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“…Polarization curve reflects the relationship between electrode potential and polarization current. In this experiment, the MFC polarization curve [27] was measured by steady-state discharge method. Coulomb efficiency (CE) is calculated by formula [28].…”

Section: Detection and Analysis Methods Of Large-volumementioning

confidence: 99%

Treating Simulated Nitrate Pollution Groundwater with Different pH by Microbial Fuel Cell

Chen¹,

Chen²,

Wang³

et al. 2020

Pol. J. Environ. Stud.

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With the rapid development of social economy, groundwater pollution is becoming more and more serious [1-3]. Groundwater is one of the most important resources in the world. It is a source of agricultural irrigation and drinking water of people [4]. However, it has received high N input from fertilizers [5], livestock wastewater and urban landfill leachate [6, 7] up to now. Even if anthropogenic inputs of reactive nitrogen were stopped today, elevated nitrate concentrations in aquifers could persist for decades to centuries, sustaining eutrophication in rivers, lakes, and estuaries [8, 9]. The government has to spend billions of dollars in environmental governance. The high concentration of nitrate in the groundwater will cause a series of diseases, such as colorectal cancer and non-Hodgkin lymphoma [10-12]. It also can affect local precipitation and cause climate degradation [13]. Therefore, nitrate removal is becoming the main issue to be solved [14, 15]. Many water quality assessment models have been used to assess the water quality, such as water quality

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“…The switching between the compartments is achieved with valves fitted on the external piping, which determine whether the compartment will be used as the inlet or outlet or as an intermediate compartment. This flexibility gives the biomass the opportunity to withstand fluctuations of the feed concentration leading to easier culture adaptation under extreme or varying conditions (Michalopoulos et al 2017a). The flow of the feedstock throughout the compartments as well as the switching of the feeding compartment is achieved through the utilization of a system of 12 solenoid valves, which open and close in a suitable way.…”

Section: The Periodic Anaerobic Baffled Reactor Pabrmentioning

confidence: 99%

“…Among the alternatives, the most prominent currently is anaerobic digestion (AD). Implementing this specific technology, FW diversion from landfills, biogas generationas an energy carrier leading to energy recoveryand nutrients recovery (through digestate treatment and use-on-land) could concurrently be achieved (Carlsson et al 2015;Michalopoulos et al 2017a). During the last few years, research has been focussed on optimizing AD processes, in order to maximize environmental and economic benefits by minimizing capital and operation expenditures (Hagos et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Anaerobic digestion of dried/shredded food waste in a periodic anaerobic baffled reactor

Mathioudakis

Michalopoulos

Kalogeropoulos

et al. 2021

Water Science and Technology

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The objective of the current work is to study the impact of the operational parameters' variation (HRT, OLR and T) on biomethane productivity in a Periodic Anaerobic Baffled Reactor (PABR). The feedstock used was a biomass product named FORBI (Food Residue Biomass), which is dried and shredded source-separated household food waste. The Periodic Anaerobic Baffled Reactor (PABR) is an innovative, high-rate bioreactor. Apart from the Hydraulic Retention Time (HRT) and the Organic Loading Rate (OLR), an important operational parameter is the Switching Period (T) of the feeding compartment: when T is high, the bioreactor operation is similar to an Anaerobic baffled reactor (ABR), while when it is low, the operation approaches that of an Upflow Anaerobic Sludge Blanket Reactor (UASBR). Nine distinct experimental phases were conducted, during which the operational parameters of the PABR were consecutively modified: the HRT varied from 9 to 2.5 days, T between 2 days and 1 and finally the OLR from 1.24 gCOD/Lbioreactor*d to 8.08 gCOD/Lbioreactor*d. The maximum biomethane yield was 384 LCH4/kgFORBI corresponding to the operation at HRT = 5 d, OLR = 2.14 gCOD/Lbioreactor*d and T = 2 days. Similar efficiency (333 LCH4/kgFORBI) was achieved at higher OLR (4.53 gCOD/Lbioreactor*d).

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Valorization of the Liquid Fraction of a Mixture of Livestock Waste and Cheese Whey for Biogas Production Through High-rate Anaerobic Co-digestion and for Electricity Production in a Microbial Fuel Cell (MFC)

Cited by 14 publications

References 32 publications

Electro-Fermentation in Aid of Bioenergy and Biopolymers

Electro-Fermentation in Aid of Bioenergy and Biopolymers

Treating Simulated Nitrate Pollution Groundwater with Different pH by Microbial Fuel Cell

Anaerobic digestion of dried/shredded food waste in a periodic anaerobic baffled reactor

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