Blar i Institutt for prosess-, energi- og miljøteknologi på forfatter "Dinamarca, Carlos"
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Ammonium as a Carbon-Free Electron and Proton Source in Microbial Electrosynthesis Processes
Sivalingam, Vasan; Dinamarca, Carlos; Arachchige, Gamunu L. Samarakoon; Winkler, Dietmar; Bakke, Rune (Peer reviewed; Journal article, 2020)Biogas upgrading to biomethane with microbial electrosynthesis (MES) is receiving much attention due to increasing biomethane demands and surplus renewable energy. Research has demonstrated the feasibility of MES to increase ... -
Anaerobic expanded granular sludge bed (EGSB) reactor for the removal of sulphide by autotrophic denitrification.
Dinamarca, Carlos (Journal article; Peer reviewed, 2014)The Removal efficiency, load and N/S molar ratio, of an EGSB reactor for autotrophic sulphide denitrification operated for 96 days, were studied. The reactor was operated at high inlet sulphide concentrations between 0.25 ... -
Chemical equilibrium model to investigate scaling in moving bed biofilm reactors (MBBR)
Sivalingam, Vasan; Ibrahim, Osama M.; Kukankov, Sergey; Omodara, Babafemi; Janka, Eshetu; Wang, Shuai; Dinamarca, Carlos; Haugen, Hildegunn Hegna; Bakke, Rune (Peer reviewed; Journal article, 2019)Moving bed biofilm reactor (MBBR) is a robust, flexible and compact technology for treatment of medium to high strength wastewater. However, while treating with high concentration of ammonium, phosphorus and metal ions, ... -
Effect of Elevated Hydrogen Partial Pressure on Mixed Culture Homoacetogenesis
Sivalingam, Vasan; Haugen, Tone; Wentzel, Alexander; Dinamarca, Carlos (Peer reviewed; Journal article, 2021)This study aimed to systematically investigate the effect of elevated hydrogen partial pressure on mixed culture homoacetogenesis in the range of 1–25 bar. Seven batch experiments were performed at different initial headspace ... -
Effect of Intermittent Aeration in a Hybrid Vertical Anaerobic Biofilm Reactor (HyVAB) for Reject Water Treatment
Sivalingam, Vasan; Dinamarca, Carlos; Wakjera, Eshetu Janka; Kukankov, Sergey; Wang, Shuai; Bakke, Rune (Peer reviewed; Journal article, 2020)Water from anaerobic sludge dewatering (reject water that is recycled to the inlet main process treatment) from the Knarrdalstrand municipal wastewater treatment plant in Porsgrunn, Norway, contains 2.4 g/L of total chemical ... -
Effect of Particulate Disintegration on Biomethane Potential of Particle-Rich Substrates in Batch Anaerobic Reactor
Tassew, Fasil Ayelegn; Bergland, Wenche Hennie; Dinamarca, Carlos; Bakke, Rune (Peer reviewed; Journal article, 2019)An investigation of particle disintegration was carried out using batch anaerobic reactors and a particle-rich substrate from pig manure supernatant. Two types of samples were applied, one high in suspended particles (raw ... -
Effects of N/S Molar Ratio on Product Formation in Psychrophilic Autotrophic Removal of Sulfide
Sposob, Michal; Bakke, Rune; Dinamarca, Carlos (Journal article; Peer reviewed, 2017) -
Effects of Psychrophilic Storage on Manures as Substrate for Anaerobic Digestion
Bergland, Wenche Hennie; Dinamarca, Carlos; Bakke, Rune (Journal article; Peer reviewed, 2014-08-05)The idea that storage can enhance manure quality as substrate for anaerobic digestion (AD) to recover more methane is evaluated by studying storage time and temperature effects on manure composition. Volatile fatty acids ... -
Granular sludge bed processes in anaerobic digestion of particle-rich substrates
Tassew, Fasil Ayelegn; Bergland, Wenche Hennie; Dinamarca, Carlos; Kommedal, Roald; Bakke, Rune (Peer reviewed; Journal article, 2019)Granular sludge bed (GSB) anaerobic digestion (AD) is a well-established method for efficient wastewater treatment, limited, however, by the wastewater particle content. This review is carried out to investigate how and ... -
High Pressure Moving Bed Biofilm Reactor for Syngas Fermentation
Sivalingam, Vasan; Dinamarca, Carlos (Peer reviewed; Journal article, 2021)Two well-studied strategies to enhance syngas fermentation are elevated headspace pressure, increasing gas-liquid (GL) mass transfer, and moving bed biofilms (MBB) to overcome kinetic growth limitation. A combination of ... -
High rate manure slurry anaerobic digestion
Bergland, Wenche Hennie; Dinamarca, Carlos; Toradzadegan, Mehrdad; Nordgård, Anna Synnøve Røstad; Bakke, Ingrid; Bakke, Rune (Journal article, 2015)The study shows that high rate anaerobic digestion may be an efficient way to obtain sustainable energy recovery from slurries such as pig manure. High process capacity and robustness to 5% daily load increases are observed ... -
High rate manure supernatant digestion
Bergland, Wenche Hennie; Dinamarca, Carlos; Toradzadegan, Mehrdad; Nordgård, Anna Synnøve Røstad; Bakke, Ingrid; Bakke, Rune (Journal article; Peer reviewed, 2015)The study shows that high rate anaerobic digestion may be an efficient way to obtain sustainable energy recovery from slurries such as pig manure. High process capacity and robustness to 5 % daily load increases are observed ... -
Influences of temperature and substrate particle content on granular sludge bed anaerobic digestion
Tassew, Fasil Ayelegn; Bergland, Wenche Hennie; Dinamarca, Carlos; Bakke, Rune (Peer reviewed; Journal article, 2019)Influences of temperature (25–35 °C) and substrate particulate content (3.0–9.4 g total suspended solids (TSS)/L) on granular sludge bed anaerobic digestion (AD) were analyzed in lab-scale reactors using manure as a substrate ... -
Integrating Syngas Fermentation into a Single-Cell Microbial Electrosynthesis (MES) Reactor
Sivalingam, Vasan; Ahmadi, Vafa; Babafemi, Omodara; Dinamarca, Carlos (Peer reviewed; Journal article, 2020)This study presents a series of experiments to test the integration of syngas fermentation into a single-cell microbial electrosynthesis (MES) process. Minimal gas–liquid mass transfer is the primary bottleneck in such ... -
Modeling N/S ratio and temperature effects in simultaneous biological denitrification and sulfide oxidation
Sposob, Michal; Bakke, Rune; Dinamarca, Carlos (Journal article; Peer reviewed, 2017)A model describing the simultaneous removal of NO3- and HS- by microorganisms is presented here. The oxidation of HS- (electron donor) can be controlled by the appropriate dosage of NO3-. The developed model, which includes ... -
Moving Bed Biofilm Process in Activated Sludge Model 1 for Reject Water Treatment
Sivalingam, Vasan; Arachchige, Gamunu L. Samarakoon; Dinamarca, Carlos (Peer reviewed; Journal article, 2021)A moving bed biofilm (MBB) process was modelled in AQUASIM using the standard activated sludge model 1 (ASM1) as a baseline. The model was controlled against experimental data from a pilot Hybrid Vertical Anaerobic Biofilm ... -
Process parameters affecting the sustainability of fermentative hydrogen production: A short review
Dinamarca, Carlos; Bakke, Rune (Journal article; Peer reviewed, 2011)Anaerobic fermentation is regarded as the least energy intensive method for H2 production. Extensive literature on experimental attempts to achieve the highest possible theoretical yield (e.g. 4 mol H2/mol glucose) is ... -
Simple modelling approach using Modelica for microbial electrosynthesis
Arachchige, Gamunu L. Samarakoon; Winkler, Dietmar; Sivalingam, Vasan; Dinamarca, Carlos; Bakke, Rune (Peer reviewed; Journal article, 2020)This study intends to develop a simple mathematical model that contributes to the integration of Microbial Electrosynthesis (MES) in AD to reduce CO2 to CH4. Open-source modelling language Modelica was used to build the ... -
Simulation of the Effect of Local Electric Potential and Substrate Concentration on CO2 Reduction via Microbial Electrosynthesis
Ahmadi, Vafa; Dinamarca, Carlos (Peer reviewed; Journal article, 2022)Integrating anaerobic digestion into electrochemical reactors is an advanced technology for biomethane recovery. Imposing low electric potential between electrodes, supplies CO2, electrons, and hydronium ions from anodic ... -
Simultaneous hydrogen production and consumption in Anaerobic mixed culture fermentation
Dinamarca, Carlos (Journal article, 2012)The aim of the present study is to investigate the relevance of homoacetogenic H2 consumption on the bio-hydrogen yield and products distribution in mixed culture fermentation. A hybrid anaerobic reactor was operated for ...