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Department of Technology and Safety jmo090@post.uit.no Tromsø

John Morken

  • Blen Weldegebreal Gebreegziabher, John Morken, Amare Aregahegn Dubale, Muyiwa S Adaramola :
    Characterization of Cold-pressed Argemone Mexicana Seed Oil, Seed Residue Briquetting and Free Fatty Acid Reduction through Glycerolysis
    Bioresource Technology Reports 2026 DOI / ARKIV
  • Ararsa Derese Seboka, John Morken, Muyiwa S. Adaramola, Gebresilassie Asnake Ewunie, Lu Feng :
    Optimization of briquetting parameters and their effects on thermochemical fuel properties of biowaste briquettes
    Bioresource Technology 11. September 2025 DOI / ARKIV
  • Blen Weldegebreal Gebreegziabher, Muyiwa S. Adaramola, John Morken, Amare Aregahegn Dubale :
    Optimization of Solid-Liquid Extraction: Solvent Effects on the Fatty Acid Composition and Physicochemical Properties of Argemone mexicana Seed Oil and Valorization of Seed Residue
    Industrial crops and products (Print) 2025 DOI / ARKIV
  • Ararsa Derese Seboka, Lu Feng, John Morken, Muyiwa S. Adaramola, Getachew Birhanu Abera, Gebresilassie Asnake Ewunie :
    Assessing energy consumption patterns and biowaste generation in southern Ethiopian hotels and universities: towards sustainable energy solutions
    Discover Sustainability 2025 DOI / ARKIV
  • Blen Weldegebreal Gebreegziabher, Amare Aregahegn Dubale, Muyiwa S. Adaramola, John Morken :
    Advancing Anaerobic Digestion of Biodiesel Byproducts: A Comprehensive Review
    Bioenergy Research 2025 DOI / ARKIV
  • Ararsa Derese Seboka, Gebresilassie Asnake Ewunie, John Morken, Lu Feng, Muyiwa S. Adaramola :
    Potentials and prospects of solid biowaste resources for biofuel production in Ethiopia: a systematic review of the evidence
    Biomass Conversion and Biorefinery 03. November 2023 DOI / ARKIV
  • Gebresilassie Asnake Ewunie, Odd Ivar Lekang, John Morken, Zerihun Demrew Yigezu :
    Characterizing the potential and suitability of Ethiopian variety Jatropha curcas for biodiesel production: Variation in yield and physicochemical properties of oil across different growing areas
    Energy Reports 2021 DOI / ARKIV
  • Gebresilassie Asnake Ewunie, Zerihun Demrew Yigezu, John Morken :
    Biochemical methane potential of Jatropha curcas fruit shell: comparative effect of mechanical, steam explosion and alkaline pretreatments
    Biomass Conversion and Biorefinery 2021 DOI / ARKIV
  • Gebresilassie Asnake Ewunie, John Morken, Odd Ivar Lekang, Zerihun Demrew Yigezu :
    Factors affecting the potential of Jatropha curcas for sustainable biodiesel production: A critical review
    Renewable and Sustainable Energy Reviews 2021 DOI / ARKIV
  • Fabrice Abunde Neba, Aseidu Nana, Addo Ahmad, John Morken, Stein Wold Østerhus, Razak Seidu :
    Biodigester Rapid Analysis and Design System (B-RADeS): A candidate attainable region-based simulator for the synthesis of biogas reactor structures
    Computers and Chemical Engineering 2020 DOI / ARKIV / ARKIV
  • Fabrice Abunde Neba, Hoese Michel Tornyeviadzi, Addo Ahmad, Aseidu Nana, John Morken, Stein Wold Østerhus et al.:
    Geometry, kinetics and reactor network synthesis: Attainable limits for minimizing residence time in biomethane digesters
    Computers and Chemical Engineering 2020 DOI / ARKIV
  • Fabrice Abunde Neba, Nana Yaw Asiedu, John Morken, Addo Ahmad, Razak Seidu :
    A novel simulation model, BK_BiogaSim for design of onsite anaerobic digesters using two-stage biochemical kinetics: Codigestion of blackwater and organic waste
    Scientific African 2020 DOI / ARKIV
  • Gebresilassie Asnake Ewunie, John Morken, Zerihun Demrew Yigezu :
    Alkaline and co-digestion pretreatments: process optimization for enhancing the methane yield of Jatropha press cake
    Biomass Conversion and Biorefinery 2020 DOI / ARKIV
  • Gebresilassie Asnake Ewunie, Zerihun Demrew Yigezu, John Morken :
    Biochemical methane potential of Jatropha press cake: Effect of steam explosion pretreatment and co-digestion with crude glycerol
    Journal of Renewable and Sustainable Energy 2020 DOI / ARKIV
  • Fabrice Abunde Neba, Nana Yaw Asiedu, Ahmad Addo, John Morken, Stein Wold Østerhus, Razak Seidu :
    A coupled modeling of design and investment parameters for optimal operation of methane bioreactors: Attainable region concept approach
    Renewable Energy 2020 DOI / ARKIV / ARKIV
  • Fabrice Abunde Neba, Hoese Michel Tornyeviadzi, Nana Y. Asiedu, Ahmad Addo, John Morken, Stein Wold Østerhus et al.:
    Can the operating limits of biogas plants operated under non-isothermal conditions be defined with certainty? Modeling self-optimizing attainable regions.
    Computers and Chemical Engineering 2020 DOI / ARKIV / ARKIV
  • Fabrice Abunde Neba, Nana Yaw Asiedu, Ahmad Addo, John Morken, Stein Wold Østerhus, Razak Seidu :
    Simulation of two-dimensional attainable regions and its application to model digester structures for maximum stability of anaerobic treatment process
    Water Research 2019 DOI / ARKIV / ARKIV
  • Kristian Fjørtoft, John Morken, Jon Fredrik Hanssen, Tormod Briseid :
    Pre-treatment methods for straw for farm-scale biogas plants
    Biomass & Bioenergy 2019 DOI / ARKIV / ARKIV
  • Fabrice Abunde Neba, Nana Yaw Asiedu, Ahmad Addo, John Morken, Stein Wold Østerhus, Razak Seidu :
    Use of attainable regions for synthesis and optimization of multistage anaerobic digesters
    Applied Energy 2019 DOI / ARKIV
  • Francis Kemausuor, Muyiwa S. Adaramola, John Morken :
    A review of commercial biogas systems and lessons for Africa
    Energies 2018 DOI / ARKIV
  • John Morken, Magnus Olimstad Gjetmundsen, Kristian Fjørtoft :
    Determination of kinetic constants from the co-digestion of dairy cow slurry and municipal food waste at increasing organic loading rates
    Renewable Energy 2017 DOI / ARKIV / ARKIV
  • Kari-Anne Lyng, Ingunn Saur Modahl, Hanne Møller, John Morken, Tormod Briseid, Ole Jørgen Hanssen :
    The BioValueChain model: a Norwegian model for calculating environmental impacts of biogas value chains
    The International Journal of Life Cycle Assessment 2015 DOI / ARKIV
  • Maria Magdalena Estevez, Roar Linjordet, Svein Jarle Horn, John Morken :
    Improving nutrient fixation and dry matter content of an ammonium-rich anaerobic digestion effluent by struvite formation and clay adsorption
    Water Science and Technology 2014 DOI / ARKIV
  • Kristian Fjørtoft, John Morken, Jon Fredrik Hanssen, Tormod Briseid :
    Methane production and energy evaluation of a farm scaled biogas plant in cold climate area
    Bioresource Technology 2014 DOI / ARKIV
  • Maria Magdalena Estevez, Zehra Sapci, Roar Linjordet, John Morken :
    Incorporation of fish by-product into the semi-continuous anaerobic co-digestion of pre-treated lignocellulose and cow manure, with recovery of digestate's nutrients
    Renewable Energy 2014 DOI / ARKIV
  • Maria Magdalena Estevez, Zehra Sapci, Roar Linjordet, Anna Schnürer, John Morken :
    Semi-continuous anaerobic co-digestion of cow manure and steam-exploded Salix with recirculation of liquid digestate
    Journal of Environmental Management (JEM) 2014 DOI / ARKIV
  • John Morken, Zehra Sapci :
    Evaluating biogas in Norway - bioenergy and greenhouse gas reduction potentials
    E-journal CIGR 2013 ARKIV / FULLTEKST
  • Jan Stefan Karlsson, Georg Finsrud, Arve Heistad, Guro Randem Hensel, Petter D. Jenssen, Melesse Eshetu_Moges et al.:
    Nitrogenfjerning og ressursgjenvinning fra små og mellomstore renseanlegg. Sluttrapport
    Norges miljø- og biovitenskapelige universitet (NMBU) 03. December 2025 ARKIV
  • Sissel Hansen, Martha Ebbesvik, Ingvar Kvande, Tatiana Francischinelli Rittl, Marko Jakovljevic, John Morken et al.:
    Skitgass. Klimagassutslipp fra bløtgjødsel
    Norsk senter for økologisk landbruk 20. January 2025 ARKIV
  • Martha Ebbesvik, Ingvar Kvande, Lena Rodhe, Peter Dörsch, Sissel Hansen, John Morken :
    Klimagassutslipp fra utendørslager for bløtgjødsel fra storfe
    Norsk senter for økologisk landbruk 30. April 2021 ARKIV
  • Michal Sposob, Roald Aasen, John Morken, Svein Jarle Horn :
    Forskere vil få mer ut av biogassen
    12. October 2021 ARKIV
  • Synnøve Rivedal, Anne Prestvik, Anders Aune, Sissel Hansen, John Morken :
    Tiltak for å redusere ammoniakkutslepp frå jordbruket
    NIBIO 2019 ARKIV
  • John Morken, Ingvar Kvande, Tormod Briseid, Aina Elstad Stensgård, Simon Alexander Saxegård :
    Følgeforskning Tingvoll gard -masse- og energibalanser, økonomi og klimanytte. REALTEK rapport 58
    Norges miljø- og biovitenskapelige universitet (NMBU) 2018 ARKIV
  • Tormod Briseid, John Morken :
    Biogassanlegget hos Sondre Skoglund – Følgeforskningen – Dokumentasjon av drift
    NIBIO 2018 ARKIV
  • John Morken, Tormod Briseid, Jon Hovland, Aina Elstad Stensgård, Simon Alexander Saxegård :
    Følgeforskning Greve Biogass -masse- og energibalanser, økonomi og klimanytte. REALTEK Rapport 57
    Norges miljø- og biovitenskapelige universitet (NMBU) 2017 ARKIV
  • John Morken, Tormod Briseid, Kari-Anne Lyng, Ingunn Saur Modahl :
    Biogass - En glemt ressurs?
    2017 ARKIV
  • John Morken, Tormod Briseid, Jon Hovland, Kari-Anne Kallerud Lyng, Ingvar Kvande :
    Veileder for biogassanlegg - mulighetsstudie, planlegging og drift
    Norges miljø- og biovitenskapelige universitet (NMBU) 2017 ARKIV
  • Ingunn Saur Modahl, Kari-Anne Lyng, Aina Elstad Stensgård, Ole Jørgen Hanssen, Hanne Møller, Silje Arnøy et al.:
    OR.34.16 Biogassproduksjon fra matavfall og møkk fra ku, gris og fjørfe. Status 2016 (fase IV) for miljønytte og verdikjedeøkonomi for den norske biogassmodellen BioValueChain
    Østfoldforskning AS 2016 ARKIV
  • Marianne Bechmann, Anne Prestvik, John Morken, Lars Nesheim, Arne Grønlund :
    Evaluering av forslag til krav i gjødselvareforskriften for å redusere klimagassutslipp, ammoniakktap og nitrogenavrenning fra jordbruket
    NIBIO 2016 ARKIV / ARKIV
  • John Morken, Kristian Fjørtoft, Tormod Briseid :
    AGRICULTURAL BIOGAS PLANTS – ENERGY BALANCE
    2015 ARKIV
  • John Morken :
    Metan fra biologiske kilder – teknologiske muligheter
    2015 ARKIV
  • John Morken :
    Se hvordan kloakk fra 4,5 millioner amerikanere forvandles til gjødsel og strøm
    30. April 2015 ARKIV
  • Ingunn Saur Modahl, Kari-Anne Lyng, Hanne Møller, Aina Elstad Stensgård, Silje Arnøy, John Morken et al.:
    OR.34.14 Biogassproduksjon fra matavfall og gjødsel fra ku, gris og fjørfe. Status 2014/fase III for miljønytte og verdikjedeøkonomi for den norske biogassmodellen BioValueChain.
    Østfoldforskning AS 2014 ARKIV
  • Kristian Fjørtoft, John Morken, Magnus Gjetmundsen :
    Dokumentasjon av biogassanlegget på Tomb VGS
    Norges miljø- og biovitenskapelige universitet (NMBU) 2014 ARKIV / ARKIV
  • Anne K. Falk Øgaard, Heidi Knutsen, Signe Kårstad, Gustav Fystro, Marianne Bechmann, John Morken :
    Konsekvensvurderinger av utkast til revidert forskrift om lagring og bruk av gjødsel til landbruksformål
    NIBIO 2014 ARKIV / ARKIV
  • John Morken :
    Presentation of the Norwegian NH3-model
    2014 ARKIV
  • John Morken :
    Ingeniører uten grenser - biogass og bærekraftig utvikling
    2013 ARKIV
  • John Morken, Zehra Sapci, Ayoub Shaza :
    Revision of the Norwegian model for estimating methane emission from manure management
    UMB 2013 ARKIV / ARKIV
  • John Morken, Zehra Sapci :
    An Energy Production Data Model
    2013 ARKIV
  • John Morken, Zehra Sapci :
    Importance of Manure Management
    2013 ARKIV

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