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artykuł

The concept of load ratio applied to bioelectrochemical systems for ammonia recovery

Mariana Rodríguez Arredondo, Philipp Kuntke, Annemiek ter Heijne, Cees JN Buisman

Journal of Chemical Technology & Biotechnology > 94 > 6 > 2055 - 2061

BACKGROUND The load ratio is a crucial parameter to optimize the current driven recovery of total ammonia nitrogen (TAN) from urine. The load ratio is the ratio between the current density and the TAN loading rate. It is currently not known if the load ratio concept applies to a bioelectrochemical system (BES) because the current density and TAN loading rate cannot be controlled independently. RESULTS...

artykuł

Gas diffusion electrodes improve hydrogen gas mass transfer for a hydrogen oxidizing bioanode

Pau Rodenas, Fangqi Zhu, Annemiek ter Heijne, Tom Sleutels, więcej

Journal of Chemical Technology & Biotechnology > 92 > 12 > 2963 - 2968

Background Bioelectrochemical systems (BESs) are capable of recovery of metals at a cathode through oxidation of organic substrate at an anode. Recently, also hydrogen gas was used as an electron donor for recovery of copper in BESs. Oxidation of hydrogen gas produced a current density of 0.8 A m^‐2 and combined with Cu²⁺ reduction at the cathode, produced 0.25 W m^‐2. The main factor limiting current...

artykuł

Prototype of a scaled‐up microbial fuel cell for copper recovery

Pau Rodenas Motos, Gonzalo Molina, Annemiek ter Heijne, Tom Sleutels, więcej

Journal of Chemical Technology & Biotechnology > 92 > 11 > 2817 - 2824

Background Bioelectrochemical systems (BESs) enable recovery of electrical energy through oxidation of a wide range of substrates at an anode and simultaneous recovery of metals at a cathode. Scale‐up of BESs from the laboratory to pilot scale is a challenging step in the development of the process, and there are only a few successful experiences to build on. This paper presents a prototype BES for...

artykuł

Ammonia recovery from urine in a scaled-up Microbial Electrolysis Cell

Patricia Zamora, Tanya Georgieva, Annemiek Ter Heijne, Tom H.J.A. Sleutels, więcej

Journal of Power Sources > 2017 > 356 > C > 491-499

A two-step treatment system for nutrient and energy recovery from urine was successfully operated for six months. In the first step, phosphorus (P) was recovered as struvite (magnesium ammonium phosphate or MAP) in a MAP reactor. The effluent of this MAP reactor was used for total ammonia-nitrogen (TAN) recovery and hydrogen production in a Microbial Electrolysis Cell (MEC). This MEC was coupled to...

artykuł

Load ratio determines the ammonia recovery and energy input of an electrochemical system

Mariana Rodríguez Arredondo, Philipp Kuntke, Annemiek ter Heijne, Hubertus V.M. Hamelers, więcej

Water Research > 2017 > 111 > C > 330-337

Complete removal and recovery of total ammonia nitrogen (TAN) from wastewaters in (bio)electrochemical systems has proven to be a challenge. The system performance depends on several factors, such as current density, TAN loading rate and pH. The interdependence among these factors is not well understood yet: insight is needed to achieve maximum ammonium recovery at minimal energy input. The aim of...

artykuł

Bioelectrochemical Power-to-Gas: State of the Art and Future Perspectives

Florian Geppert, Dandan Liu, Mieke van Eerten-Jansen, Eckhard Weidner, więcej

Trends in Biotechnology > 2016 > 34 > 11 > 879-894

Bioelectrochemical power-to-gas (BEP2G) is considered a potentially convenient way of storing renewable surplus electricity in the form of methane. In methane-producing bioelectrochemical systems (BESs), carbon dioxide and electrical energy are converted into methane, using electrodes that supply either electrons or hydrogen to methanogenic archaea. This review summarizes the performance of methane-producing...

artykuł

Performance of single carbon granules as perspective for larger scale capacitive bioanodes

Casper Borsje, Dandan Liu, Tom H.J.A. Sleutels, Cees J.N. Buisman, więcej

Journal of Power Sources > 2016 > 325 > C > 690-696

The use of high surface area electrodes, like carbon-based felt or granules, in Bioelectrochemical Systems is crucial for high volumetric current production. In case activated carbon granules are used, charge can also be stored in the form of an electric double layer in the pores, which has been shown to improve bioanode performance. So far, it is not known how much current can be generated by a single...

artykuł

Bioelectrochemical enhancement of methane production in low temperature anaerobic digestion at 10 °C

Dandan Liu, Lei Zhang, Si Chen, Cees Buisman, więcej

Water Research > 2016 > 99 > C > 281-287

Anaerobic digestion at low temperature is an attractive technology especially in moderate climates, however, low temperature results in low microbial activity and low rates of methane formation. This study investigated if bioelectrochemical systems (BESs) can enhance methane production from organic matter in low-temperature anaerobic digestion (AD). A bioelectrochemical reactor was operated with granular...

artykuł

Analysis of bio-anode performance through electrochemical impedance spectroscopy

Annemiek ter Heijne, Olivier Schaetzle, Sixto Gimenez, Lucia Navarro, więcej

Bioelectrochemistry > 2015 > 106 > PA > 64-72

In this paper we studied the performance of bioanodes under different experimental conditions using polarization curves and impedance spectroscopy. We have identified that the large capacitances of up to 1mF·cm⁻² for graphite anodes have their origin in the nature of the carbonaceous electrode, rather than the microbial culture.In some cases, the separate contributions of charge transfer and diffusion...

artykuł

Carbon dioxide reduction by mixed and pure cultures in microbial electrosynthesis using an assembly of graphite felt and stainless steel as a cathode

Suman Bajracharya, Annemiek ter Heijne, Xochitl Dominguez Benetton, Karolien Vanbroekhoven, więcej

Bioresource Technology > 2015 > 195 > C > 14-24

Carbon dioxide (CO₂) reduction to multi-carbon compounds at the cathode using chemolithoautotrophs is an emerging application of microbial electrosynthesis (MES). In this study, CO₂ reduction in MES was investigated at hydrogen evolving potentials, separately by a mixed culture and Clostridium ljungdahlii, using a graphite felt and stainless steel assembly as cathode. The mixed culture reactor produced...

rozdział

Electrochemical Impedance Spectroscopy as a Powerful Analytical Tool for the Study of Microbial Electrochemical Cells

Rachel A. Yoho, Sudeep C. Popat, Francisco Fabregat‐Santiago, Sixto Giménez, więcej

Biofilms in Bioelectrochemical Systems > 249 - 280

In microbial electrochemical cells (MXCs), not only classic overpotentials known from other types of fuel cells are encountered, but also overpotentials associated with the metabolic processes and electron‐transport pathways in bacteria are encountered. Of the many techniques that can be used to investigate the contributions of various processes to the total overpotential in MXCs, this chapter focuses...

artykuł

Analysis of the mechanisms of bioelectrochemical methane production by mixed cultures

Mieke C. A. A. van Eerten‐Jansen, Nina C. Jansen, Caroline M. Plugge, Vinnie de Wilde, więcej

Journal of Chemical Technology & Biotechnology > 90 > 5 > 963 - 970

BACKGROUNDIn a methane‐producing bioelectrochemical system (BES) microorganisms grow on an electrode and catalyse the conversion of CO₂ and electricity into methane. Theoretically, methane can be produced bioelectrochemically from CO₂ via direct electron transfer or indirectly via hydrogen, acetate or formate. Understanding the electron transfer mechanisms could give insight into methods to steer...

artykuł

Electrical conductivity in granular biomass. Standardization and evaluation

Diego Andres Suarez Zuluaga, Sebastian Canizales, Annemiek ter Heijne, Jan Weijma, więcej

New BIOTECHNOLOGY > 2014 > 31 > Supplement > S142

artykuł

Influence of the thickness of the capacitive layer on the performance of bioanodes in Microbial Fuel Cells

Alexandra Deeke, Tom H.J.A. Sleutels, Annemiek Ter Heijne, Hubertus V.M. Hamelers, więcej

Journal of Power Sources > 2013 > 243 > C > 611-616

Earlier it was shown, that it is possible to operate a Microbial Fuel Cell with an integrated capacitive bio-anode with a thickness of 0.5 mm and thereby to increase the power output. The integrated capacitive bioanode enabled storage of electricity produced by microorganisms directly inside an MFC. To increase the performance of this integrated storage system even more; the thickness of the capacitive...

artykuł

Steady-state performance and chemical efficiency of Microbial Electrolysis Cells

Tom H.J.A. Sleutels, Annemiek Ter Heijne, Cees J.N. Buisman, Hubertus V.M. Hamelers

International Journal of Hydrogen Energy > 2013 > 38 > 18 > 7201-7208

The objective of this paper was to study MEC performance at steady-state conditions in continuous mode and to analyse MEC performance in terms of chemical efficiency. At steady-state operation, a current density of 10.2 A m ⁻² (applied voltage 1.0 V) for a set-up with an AEM was produced, compared to 7.2 A m ⁻² for a set-up with a CEM. For all applied voltages, total internal resistance...

artykuł

Microbial electrolysis cells for production of methane from CO₂: long‐term performance and perspectives

Mieke C. A. A. Van Eerten‐Jansen, Annemiek Ter Heijne, Cees J. N. Buisman, Hubertus V. M. Hamelers

International Journal of Energy Research > 36 > 6 > 809 - 819

A methane‐producing microbial electrolysis cell (MEC) is a technology to convert CO₂ into methane, using electricity as an energy source and microorganisms as the catalyst. A methane‐producing MEC provides the possibility to increase the fuel yield per hectare of land area, when the CO₂ produced in biofuel production processes is converted to additional fuel methane. Besides increasing fuel yield...

artykuł

Performance of a scaled-up Microbial Fuel Cell with iron reduction as the cathode reaction

Annemiek Ter Heijne, Fei Liu, Lucas S. van Rijnsoever, Michel Saakes, więcej

Journal of Power Sources > 2011 > 196 > 18 > 7572-7577

Scale-up studies of Microbial Fuel Cells are required before practical application comes into sight. We studied an MFC with a surface area of 0.5m ² and a volume of 5L. Ferric iron (Fe ³⁺ ) was used as the electron acceptor to improve cathode performance. MFC performance increased in time as a combined result of microbial growth at the bio-anode, increase in iron concentration from...

artykuł

Butler–Volmer–Monod model for describing bio-anode polarization curves

Hubertus V.M. Hamelers, Annemiek ter Heijne, Nienke Stein, René A. Rozendal, więcej

Bioresource Technology > 2011 > 102 > 1 > 381-387

A kinetic model of the bio-anode was developed based on a simple representation of the underlying biochemical conversions as described by enzyme kinetics, and electron transfer reactions as described by the Butler–Volmer electron transfer kinetics. This Butler–Volmer–Monod model was well able to describe the measured bio-anode polarization curves. The Butler–Volmer–Monod model was compared to the...