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Roald Kommedal

Førsteamanuensis

Det teknisk- naturvitenskapelige fakultet
Institutt for kjemi, biovitenskap og miljøteknologi
KE C-218
Publications
  • Vitenskapelige publikasjoner
    • Enge, Espen; van der Hoeven, Henrik; Kommedal, Roald

      (2021)

      Stability of pH, conductivity and alkalinity in dilute clear water samples exposed to various environmental conditions.

      Fundamental and Applied Limnology

      ISSN 1863-9135.

      Volum 195.

      Hefte 3.

      s.211-219.

      DOI: 10.1127/fal/2021/1390

    • Uluseker, Cansu; Kaster, Krista Michelle; Thorsen, Kristian; Basiry, Daniel; Shobana, Sutha; Jain, Monika; Kumar, Gopalakrishnan; Kommedal, Roald; Pala-Ozkok, Ilke

      (2021)

      A Review on Occurrence and Spread of Antibiotic Resistance in Wastewaters and in Wastewater Treatment Plants: Mechanisms and Perspectives.

      Frontiers in Microbiology

      ISSN 1664-302X.

      Volum 12.

      DOI: 10.3389/fmicb.2021.717809

    • Safitri, Anissa Sukma; Hamelin, Jérôme; Kommedal, Roald; Milferstedt, Kim

      (2021)

      Engineered methanotrophic syntrophy in photogranule communities removes dissolved methane.

      Water Research X

      ISSN 2589-9147.

      Volum 12.

      DOI: 10.1016/j.wroa.2021.100106

    • Tassew, Fasil Ayelegn; Bergland, Wenche Hennie; Dinamarca, Carlos; Kommedal, Roald; Bakke, Rune

      (2019)

      Granular sludge bed processes in anaerobic digestion of particle-rich substrates.

      Energies

      ISSN 1996-1073.

      Volum 12.

      Hefte 15.

      DOI: 10.3390/en12152940

    • Ravndal, Kristin Torgersen; Opsahl, Eystein; Bagi, Andrea; Kommedal, Roald

      (2018)

      Wastewater characterisation by combining size fractionation, chemical composition and biodegradability.

      Water Research

      ISSN 0043-1354.

      Volum 131.

      s.151-160.

      DOI: 10.1016/j.watres.2017.12.034

    • Ravndal, Kristin Torgersen; Kommedal, Roald

      (2017)

      Starch degradation and intermediate dynamics in flocculated and dispersed microcosms.

      Water Science and Technology

      ISSN 0273-1223.

      Volum 76.

      Hefte 11.

      s.2928-2940.

      DOI: 10.2166/wst.2017.467

    • Opsahl, Eystein; Kommedal, Roald

      (2017)

      Environmental Consequences of Polymer Flooding. I: 19th European Symposium on Improved Oil Recovery/IOR Norway 2017.

      European Association of Geoscientists and Engineers (EAGE)

      ISBN 978-94-6282-209-2.

    • Opsahl, Eystein; Kommedal, Roald

      (2016)

      Literature review (short): Fate and effect of produced water containing EOR-polymers. I: 5th international conference on industrial and hazardous Waste management.

      Technical University of Crete Chania Crete Greece

      ISBN 978-960-8475-24-3.

      s.163-164.

    • Kommedal, Roald; Bagi, Andrea; Hemmingsen, Tor Henning

      (2015)

      Environmental Effects of Oil and Gas Exploration and Production in the Barents Sea. I: International Arctic Petroleum Cooperation: Barents Sea Scenarios.

      Routledge

      ISBN 978-1-13-878326-3.

      s.225-250.

      DOI: 10.4324/9781315768762-13

    • Kataya, Amr Ramzy Abass; Heidari Ahootapeh, Behzad; Hagen, Lars; Kommedal, Roald; Slupphaug, Geir; Lillo, Cathrine

      (2015)

      Protein phosphatase 2A holoenzyme is targeted to peroxisomes by piggybacking and positively affects peroxisomal β-oxidation.

      Plant Physiology

      ISSN 0032-0889.

      Volum 167.

      Hefte 2.

      s.493-506.

      DOI: 10.1104/pp.114.254409

    • Kataya, Amr Ramzy Abass; Heidari, Behzad; Hagen, Lars; Kommedal, Roald; Slupphaug, Geir; Lillo, Cathrine

      (2015)

      Supplemental materials for: Protein phosphatase 2A holoenzyme is targeted to peroxisomes by piggybacking and positively affects peroxisomal β-oxidation.

      Plant Physiology

      ISSN 0032-0889.

      Volum 167.

      Hefte 2.

      s.493-506.

      DOI: 10.1104/pp.114.254409

    • Bagi, Andrea; Pampanin, Daniela M.; Lanzén, Anders; Bilstad, Torleiv; Kommedal, Roald

      (2014)

      Naphthalene biodegradation in temperate and arctic marine microcosms.

      Biodegradation

      ISSN 0923-9820.

      Volum 25.

      Hefte 1.

      s.111-125.

      DOI: 10.1007/s10532-013-9644-3

    • Bagi, Andrea; Pampanin, Daniela M.; Brakstad, Odd Gunnar; Kommedal, Roald

      (2013)

      Estimation of hydrocarbon biodegradation rates in marine environments: A critical review of the Q(10) approach.

      Marine Environmental Research

      ISSN 0141-1136.

      Volum 89.

      s.83-90.

      DOI: 10.1016/j.marenvres.2013.05.005

    • Del Villano, Luca; Kommedal, Roald; Fijten, Martin W. M.; Schubert, Ulrich S.; Hoogenboom, Richard; Kelland, Malcolm

      (2009)

      A Study of the Kinetic Hydrate Inhibitor Performance and Seawater Biodegradability of a Series of Poly(2-alkyl-2-oxazoline)s.

      Energy & Fuels

      ISSN 0887-0624.

      Volum 23.

      Hefte 7.

      s.3665-3673.

      DOI: 10.1021/ef900172f

    • Del Villano, Luca; Kommedal, Roald; Kelland, Malcolm

      (2008)

      Class of kinetic hydrate inhibitors with good biodegradability.

      Energy & Fuels

      ISSN 0887-0624.

      Volum 22.

      Hefte 5.

      s.3143-3149.

      DOI: 10.1021/ef800161z

    • Kommedal, Roald; Bakke, Rune; Milferstedt, K.; Bakke, Rune; Morgenroth, E.

      (2006)

      Effects of initial molecular weight on removal rate of dextran in biofilms.

      Water Research

      ISSN 0043-1354.

      Volum 40.

      s.1795-1804.

    • Kommedal, Roald; Bakke, Rune; Dockery, J.; Stoodley, P.

      (2001)

      Modelling production of extracelluar polymeric substances in a Pseudomonas aeruginos chemostat culture.

      Water Science and Technology

      ISSN 0273-1223.

      Volum 43.

      Hefte 6.

      s.129-134.

    • Bakke, Rune; Kommedal, Roald; Kalvenes, Sigmund

      (2001)

      Quantification of biofilm accumulation by an optical approach.

      Journal of Microbiological Methods

      ISSN 0167-7012.

      Volum 44.

      s.13-26.

    • Morgenroth, Eberhard; Kommedal, Roald; Harremoes, Poul

      (2001)

      Processes and modeling of hydrolysis of particulate organic matter in aerobic wastewater treatment - A review.

      Water Research

      ISSN 0043-1354.

      Volum 45.

      Hefte 6.

      s.25-40.

    • Ydstebø, Leif; Bilstad, Torleiv; Kommedal, Roald

      (2000)

      Full-Scale experience with enhanced biological phosphorus removal (EBPR) in cold climates.

      Journal of Environmental Science and Health. Part A: Toxic/Hazardous Substances and Environmental Engineering

      ISSN 1093-4529.

      Volum 35.

      Hefte 8.

      s.1493-1502.

  • Bøker og kapitler
    • Wøien Håland, Mari

      (2019)

      Analysis of the Antibiotic Ampicillin in Activated Sludge: Method Development and Adsorption Studies.

    • Krahner, Friederike

      (2017)

      Retention and biological uptake of phosphorous in the Leikvollbekken constructed wetland..

    • Wold, Anders; Ydstebø, Leif; Kommedal, Roald; Løklingholm, Martin; Bilstad, Torleiv

      (2014)

      Effect of Sodium on Anaerobic Treatment of Ethylene Glycol. I: Executive Summaries: 4th International Conference on "Industrial and Hazardous Waste Management".

      ISBN 978-960-8475-20-5.

      s.399-400.

    • Kommedal, Roald

      (2004)

      Degradation of polymeric and particulate organic carbon in biofilms.

      Hefte 2003 : 101.

    • Kommedal, Roald; Bakke, Rune

      (2003)

      Modeling Pseudomonas aerugionsa biofilm detachment.

      Hefte 2003:03:00.

  • Formidling
    • Kommedal, Roald

      (2021)

      Rensing og renseeffekter fra landbaserte akvakulturanlegg – Hva kan vi lære fra kommunal renseteknikk?.

    • Hiorth, Aksel; Kommedal, Roald

      (2020)

      Stol på matematikken, ikke magefølelsen.

      Forskning.no

      ISSN 1891-635X.

    • Thorsen, Kristian; Kommedal, Roald; Lood, Rolf

      (2020)

      Wastewater treatment plants as critical reservoirs for resistance genes - Summary of JPI-EC-AMR JTC 2016 project: Gene-gas .

    • Hiorth, Aksel; Kommedal, Roald

      (2020)

      Korona, ebola og zombier.

      Dagsavisen

      ISSN 1503-2892.

    • Kechasov, Dmitry; Kommedal, Roald; Verheul, Michel; Paponov, Ivan

      (2020)

      GC-MS og Ion Kromatografi i veksthus.

    • Kechasov, Dmitry; Kommedal, Roald; Verheul, Michel; Paponov, Ivan

      (2020)

      EFFECT OF ORGANIC FERTILISER ON METABOLIC PROFILE OF HYDROPONICALLY CULTIVATED TOMATO.

    • Kommedal, Roald

      (2019)

      Modeling of unicellular growth – From Malthus to Food Web models in ecology.

    • Uluseker, Cansu; Kaster, Krista Michelle; Thorsen, Kristian; Kommedal, Roald

      (2019)

      Modeling Antimicrobial Resistance Gene Transfer in Wastewater Treatment Plants.

    • Kommedal, Roald; Mazarino, Jenny; Wold, Anders Brattberg

      (2019)

      Nutrient characteristics and biomethane potential of co-digested fecal sludge from land based Atlantic Salmon fish farming.

    • Uluseker, Cansu; Basiry, Daniel; Stokka, Svein Håvard; Kaster, Krista Michelle; Thorsen, Kristian; Kommedal, Roald

      (2019)

      Modelling Antibiotic Resistance Gene Spread in Wastewater Treatment Plants.

    • Uluseker, Cansu; Basiry, Daniel; Stokka, Svein Håvard; Kaster, Krista Michelle; Thorsen, Kristian; Kommedal, Roald

      (2019)

      Modelling Antibiotic Resistance Gene Spread in Wastewater Treatment Plants.

    • Uluseker, Cansu; Kaster, Krista Michelle; Thorsen, Kristian; Kommedal, Roald

      (2019)

      Mechanism of Antibiotic Resistance Gene Spread in Wastewater Treatment Plants Using Activated Sludge.

    • Safitri, Anissa Sukma; Farsi, Ali; Kaster, Krista Michelle; Kommedal, Roald

      (2018)

      Integrated Wastewater Treatment Concept for Water Resource Recovery.

    • Safitri, Anissa Sukma; Kaster, Krista Michelle; Kumar, Gopalakrishnan; Kommedal, Roald

      (2018)

      Low temperature biogas production from municipal wastewater by laboratory scale UASB granules.

    • Opsahl, Eystein; Kaster, Krista Michelle; Verpe, Ingrid; Svendsen, Linn; Meling, Silja Helene; Kommedal, Roald

      (2018)

      Biodegradability of Enhanced Oil Recovery Polymers in Seawater and Their Effect on the Microbial Community .

    • Kommedal, Roald; Kumar, Gopalakrishnan; Kaster, Krista Michelle; Pala Ozkok, Ilke; Thorsen, Kristian

      (2018)

      A simple mathematical model for antimicrobial resistance gene transfer in wastewater treatment models.

    • Safitri, Anissa Sukma; Kaster, Krista Michelle; Kommedal, Roald

      (2018)

      Effect of Low Temperature and Municipal Wastewater Organic Loading on UASB (Up-flow Anaerobic Sludge Blanket) Reactor Performance .

    • Kommedal, Roald; Opsahl, Eystein

      (2017)

      Fate and effects of synthetic polymers - the sub-micro-plastic problem..

    • Kommedal, Roald; Opsahl, Eystein

      (2017)

      Polymer and particle degradation in the seawater .

    • Kommedal, Roald; Krahner, Friederike

      (2017)

      Phosphorous retention in a mature constructed wetland – effect of hydraulic loading fluctuations.

    • Kommedal, Roald

      (2017)

      Occurrence and fate of priority organic pollutants during wastewater sludge treatment.

    • Kommedal, Roald; Opsahl, Eystein

      (2017)

      Polymer and Particle Degradation in Seawater - Marine fate of synthetic polymers used for IOR.

    • Opsahl, Eystein; Kommedal, Roald

      (2016)

      Environmental fate and effects of polymer produced water II.

    • Kommedal, Roald; Ydstebø, Leif; Bilstad, Torleiv

      (2016)

      Occurrence and Fate of Priority Organica Pollutants during Wastewater Sludge Treatment.

    • Kommedal, Roald

      (2016)

      Will we find ET and would we know?.

    • Handley, Bianca; Molversmyr, Åge; Kommedal, Roald

      (2016)

      Constructed wetlands for agricultural runoff remediation – effects on bioavailability of phosphorus.

    • Kommedal, Roald

      (2016)

      Leikvollbekken – Fosforbalanse og renseeffekt.

    • Kommedal, Roald

      (2016)

      Fosforfangst i våtmarksplanter – Hvor mye kan fjernes?.

    • Haws, Anne Marie; Kommedal, Roald; Enge, Espen; Hill, Helene H

      (2016)

      Annual Phosphorus Retention Efficiency of a Constructed Wetland Treating Diffuse Agricultural Runoff.

    • Kommedal, Roald

      (2016)

      Biologisk energiproduksjon.

    • Christ, Inge; Kommedal, Roald

      (2016)

      Biogassforskning ved UiS.

    • Kommedal, Roald; Ydstebø, Leif; Bilstad, Torleiv

      (2016)

      Occurrence and fate of priority organic pollutants during wastewater sludge treatment.

      Industrial and Hazardous Waste Management

      ISSN 2241-3138.

      s.331-332.

    • Opsahl, Eystein; Kommedal, Roald

      (2016)

      Environmental fate and effects of polymer produced water.

    • Wold, Anders; Ydstebø, Leif; Kommedal, Roald; Løklingholm, Martin; Bilstad, Torleiv

      (2016)

      Anaerobic treatment of slop water.

      Industrial and Hazardous Waste Management

      ISSN 2241-3138.

      s.261-262.

    • Kommedal, Roald; Ulas, Mona; Bagi, Andrea; Kaster, Krista Michelle

      (2015)

      The Effects of Corexit 9500 on Oil Biodegradation at Cold Temperatures.

    • Kommedal, Roald

      (2015)

      Polymers in the Environment - Fate and Effects.

    • Kommedal, Roald

      (2015)

      Biologisk nedbrytbarhet: Forsøksdesign og Dataanalyse.

    • Bagi, Andrea; Pampanin, Daniela M.; Lanzén, Anders; Bilstad, Torleiv; Kommedal, Roald

      (2014)

      Arctic bacteria are “as good as” temperate counterparts in removing toxic oil components from the marine environment.

    • Madland, Merete Vadla; Kommedal, Roald; Hiorth, Aksel

      (2014)

      Meeting at UiS 16. June 2014 Professor Johan Sjøblom (Ugelstad Laboratory, NTNU).

    • Wold, Anders; Ydstebø, Leif; Kommedal, Roald; Løklingholm, Martin; Bilstad, Torleiv

      (2014)

      Effect of Sodium on anaerobic treatment of Ethylene Glycol.

    • Kommedal, Roald

      (2014)

      100-års jubileum for den viktigste oppfinnelsen i rensing av vann.

    • Kommedal, Roald

      (2014)

      Aktivt Slam Prosessen - Ny, gammel renseteknologi.

    • Madland, Merete Vadla; Kommedal, Roald; Hiorth, Aksel

      (2014)

      The National IOR Centre of Norway - Research highlights abd ambitions.

    • Kommedal, Roald

      (2013)

      Hvem, Hva, Hvor (mye)? GCMS: Miljøkjemikerens orjanisk foretrukne....

    • Ravndal, Kristin Torgersen; Kommedal, Roald

      (2013)

      Bacterial polymer degradation in natural river water.

    • Ravndal, Kristin Torgersen; Bagi, Andrea; Kommedal, Roald

      (2012)

      The effect of hydrostatic pressure on biodegradation of a mixture of benzene, toluene, ethylbenzene and o-xylene.

    • Kelland, Malcolm Andrew; Hoogenboom, Richard; Del Villano, Luca; Kommedal, Roald; Schubert, Ulrich S.; Fijten, Martin W. M.

      (2012)

      POLY(2-OXAZOLINE)S AS KINETIC GAS HYDRATE INHIBITORS.

    • Kommedal, Roald

      (2012)

      Olje og Miljøsikkerhet.

    • Kommedal, Roald

      (2012)

      Hydrolysis of particulate and polymeric substances in biofilms.

    • Bagi, Andrea; Lanzén, Anders; Bilstad, Torleiv; Kommedal, Roald

      (2012)

      Naphthalene degrading prokaryotic communities of Arctic and Temperate seas.

    • Ravndal, Kristin Torgersen; Kommedal, Roald

      (2012)

      A quantitative model of bacterial particle and polymer degradation in aquatic systems.

    • Kommedal, Roald; Bagi, Andrea; Bilstad, Torleiv; Brakstad, O.G.

      (2010)

      Biodegradation of naphthalene in Temperate and Arctic marine environment.

    • Kelland, Malcolm; Kommedal, Roald; Del Villano, Luca

      (2008)

      A Class Of Kinetic Hydrate Inhibitor With Good Biodegradability.

    • Morgenroth, E.; Kommedal, Roald; Harremoes, P.

      (2001)

      Process and modeling of hydrolysis of particulate organic matter in aerobic wastewater treatment : a review.

    • Kommedal, Roald; Bakke, Rune

      (2000)

      Modelling production of extracellular polymeric substances in a Pseudomonas aeruginosa chemostat culture.

    • Kommedal, Roald

      (2000)

      Pseudonas aeruginosa biofilm detachment.

    • Kommedal, Roald; Thorbjørnsen, T.; Bakke, Rune

      (1999)

      Hydrolysis of adsorbed particulate organic matter in arobic films.

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