Roald Kommedal

Daniel Basiry; Krista Michelle Kaster; Roald Kommedal (2025) Evaluation of wastewater treatment plants as places of amplification for antibiotic resistance genes. Universitetet i Stavanger. ISBN 9788284393988.

Daniel Basiry; Roald Kommedal; Krista Michelle Kaster (2024) Effect of subinhibitory concentrations on the spreading of the ampicillin resistance gene blaCMY-2 in an activated sludge microcosm. I: Environmental technology. ISSN 0959-3330. DOI: 10.1080/09593330.2024.2394719

Daniel Basiry; Roald Kommedal; Krista Michelle Kaster (2024) The presence of antibiotic-resistant bacteria at four Norwegian wastewater treatment plants: seasonal and wastewater-source effects. I: Frontiers in Antibiotics. Online ISSN 2813-2467. Volum 3. DOI: 10.3389/frabi.2024.1351999

Daniel Basiry; Nooshin Entezari Heravi; Cansu Uluseker; Krista Michelle Kaster; Roald Kommedal; Ilke Pala-Ozkok (2022) The effect of disinfectants and antiseptics on co- and cross-selection of resistance to antibiotics in aquatic environments and wastewater treatment plants. I: Frontiers in Microbiology. Online ISSN 1664-302X. Volum 13. DOI: 10.3389/fmicb.2022.1050558

Georgeio Semaan; M.R. Atelge; Roent Dune Cayetano; Gopalakrishnan Kumar; Roald Kommedal (2022) Spent coffee grounds anaerobic digestion: Investigating substrate to inoculum ratio and dilute acid thermal pretreatment. I: Fuel. ISSN 0016-2361. Volum 331. DOI: 10.1016/j.fuel.2022.125598

Anissa Sukma Safitri; Krista Michelle Kaster; Roald Kommedal (2022) Effect of low temperature and municipal wastewater organic loading on anaerobic granule reactor performance. I: Bioresource Technology. ISSN 0960-8524. Volum 360. DOI: 10.1016/j.biortech.2022.127616

Anissa Sukma Safitri; Roald Kommedal (2022) Effect of temperatures on anaerobic granulated biofilm modelling. I: Linköping Electronic Conference Proceedings. ISSN 1650-3686. DOI: 10.3384/ecp192030

Kristin Torgersen Ravndal; Roald Kommedal (2022) Modelling particle degradation and intermediate dynamics in a dispersed activated sludge microcosm. I: Linköping Electronic Conference Proceedings. ISSN 1650-3686. DOI: 10.3384/ecp192002

Espen Enge; Henrik van der Hoeven; Roald Kommedal (2021) Stability of pH, conductivity and alkalinity in dilute clear water samples exposed to various environmental conditions. I: Fundamental and Applied Limnology. ISSN 1863-9135. Volum 195. s.211-219. DOI: 10.1127/fal/2021/1390

Cansu Uluseker; Krista Michelle Kaster; Kristian Thorsen; Daniel Basiry; Sutha Shobana; Monika Jain; Gopalakrishnan Kumar; Roald Kommedal; Ilke Pala-Ozkok (2021) A Review on Occurrence and Spread of Antibiotic Resistance in Wastewaters and in Wastewater Treatment Plants: Mechanisms and Perspectives. I: Frontiers in Microbiology. Online ISSN 1664-302X. Volum 12. DOI: 10.3389/fmicb.2021.717809

Svein Håvard Stokka; Roald Kommedal; Kristian Thorsen; Cansu Uluseker (2021) An Individual-based Model for Simulating Antibiotic Resistance Spread in Bacterial Flocs in Wastewater Treatment Plants. I: Linköping Electronic Conference Proceedings. ISSN 1650-3686. s.436-443. DOI: 10.3384/ecp21185436

Anissa Sukma Safitri; Jérôme Hamelin; Roald Kommedal; Kim Milferstedt (2021) Engineered methanotrophic syntrophy in photogranule communities removes dissolved methane. I: Water Research X. Online ISSN 2589-9147. Volum 12. DOI: 10.1016/j.wroa.2021.100106

Fasil Ayelegn Tassew; Wenche Hennie Bergland; Carlos Dinamarca; Roald Kommedal; Rune Bakke (2019) Granular sludge bed processes in anaerobic digestion of particle-rich substrates. I: Energies. Online ISSN 1996-1073. Volum 12. DOI: 10.3390/en12152940

Kristin Torgersen Ravndal; Eystein Opsahl; Andrea Bagi; Roald Kommedal (2018) Wastewater characterisation by combining size fractionation, chemical composition and biodegradability. I: Water Research. ISSN 0043-1354. Volum 131. s.151-160. DOI: 10.1016/j.watres.2017.12.034

Eystein Opsahl; Roald Kommedal (2017) Environmental Consequences of Polymer Flooding. I: Ukjent Ukjent, 19th European Symposium on Improved Oil Recovery/IOR Norway 2017. European Association of Geoscientists and Engineers (EAGE). ISBN 9789462822092.

Kristin Torgersen Ravndal; Roald Kommedal (2017) Starch degradation and intermediate dynamics in flocculated and dispersed microcosms. I: Water Science and Technology. ISSN 0273-1223. Volum 76. s.2928-2940. DOI: 10.2166/wst.2017.467

Eystein Opsahl; Roald Kommedal (2016) Literature review (short): Fate and effect of produced water containing EOR-polymers. I: Evangelos Gidarakos; Raffaello Cossu, 5th international conference on industrial and hazardous Waste management. Technical University of Crete Chania Crete Greece. ISBN 9789608475243. s.163-164.

Roald Kommedal; Andrea Bagi; Tor Henning Hemmingsen (2015) Environmental Effects of Oil and Gas Exploration and Production in the Barents Sea. I: Indra Øverland; Anatoli Bourmistrov; Alexei Bambulyak; Ove Tobias Gudmestad; Anatoly Zolotukhin; Frode Mellemvik, International Arctic Petroleum Cooperation: Barents Sea Scenarios. Routledge. ISBN 9781138783263. s.225-250. DOI: 10.4324/9781315768762-13

Amr Ramzy Abass Kataya; Behzad Heidari; Lars Hagen; Roald Kommedal; Geir Slupphaug; Cathrine Lillo (2015) Supplemental materials for: Protein phosphatase 2A holoenzyme is targeted to peroxisomes by piggybacking and positively affects peroxisomal β-oxidation. I: Plant Physiology. ISSN 0032-0889. Volum 167. s.493-506. DOI: 10.1104/pp.114.254409

Amr Ramzy Abass Kataya; Behzad Heidari Ahootapeh; Lars Hagen; Roald Kommedal; Geir Slupphaug; Cathrine Lillo (2014) Protein phosphatase 2A holoenzyme is targeted to peroxisomes by piggybacking and positively affects peroxisomal β-oxidation. I: Plant Physiology. ISSN 0032-0889. Volum 167. s.493-506. DOI: 10.1104/pp.114.254409

Andrea Bagi; Daniela M. Pampanin; Anders Lanzén; Torleiv Bilstad; Roald Kommedal (2013) Naphthalene biodegradation in temperate and arctic marine microcosms. I: Biodegradation. ISSN 0923-9820. Volum 25. s.111-125. DOI: 10.1007/s10532-013-9644-3

Andrea Bagi; Daniela M. Pampanin; Odd Gunnar Brakstad; Roald Kommedal (2013) Estimation of hydrocarbon biodegradation rates in marine environments: A critical review of the Q(10) approach. I: Marine Environmental Research. ISSN 0141-1136. Volum 89. s.83-90. DOI: 10.1016/j.marenvres.2013.05.005

Luca Del Villano; Roald Kommedal; Martin W. M. Fijten; Ulrich S. Schubert; Richard Hoogenboom; Malcolm Kelland (2009) A Study of the Kinetic Hydrate Inhibitor Performance and Seawater Biodegradability of a Series of Poly(2-alkyl-2-oxazoline)s. I: Energy & Fuels. ISSN 0887-0624. Volum 23. s.3665-3673. DOI: 10.1021/ef900172f

Luca Del Villano; Roald Kommedal; Malcolm Kelland (2008) Class of kinetic hydrate inhibitors with good biodegradability. I: Energy & Fuels. ISSN 0887-0624. Volum 22. s.3143-3149. DOI: 10.1021/ef800161z

Roald Kommedal; K. Milferstedt; Rune Bakke; E. Morgenroth (2006) Effects of initial molecular weight on removal rate of dextran in biofilms. I: Water Research. ISSN 0043-1354. Volum 40. s.1795-1804.

Roald Kommedal (2003) Degradation of polymeric and particulate organic carbon in biofilms. Norges teknisk-naturvitenskapelige universitet. ISBN 9788247156551.

Rune Bakke; Roald Kommedal; Sigmund Kalvenes (2001) Quantification of biofilm accumulation by an optical approach. I: Journal of Microbiological Methods. ISSN 0167-7012. Volum 44. s.13-26.

Eberhard Morgenroth; Roald Kommedal; Poul Harremoes (2001) Processes and modeling of hydrolysis of particulate organic matter in aerobic wastewater treatment - A review. I: Water Research. ISSN 0043-1354. Volum 45. s.25-40.

Roald Kommedal; Rune Bakke; J. Dockery; P. Stoodley (2001) Modelling production of extracelluar polymeric substances in a Pseudomonas aeruginos chemostat culture. I: Water Science and Technology. ISSN 0273-1223. Volum 43. s.129-134.

Leif Ydstebø; Torleiv Bilstad; Roald Kommedal (2000) Full-Scale experience with enhanced biological phosphorus removal (EBPR) in cold climates. I: Journal of Environmental Science and Health. Part A: Toxic/Hazardous Substances and Environmental Engineering. ISSN 1093-4529. Volum 35. s.1493-1502.

Peter Ruoff; Ludger Rensing; Roald Kommedal; S. Mohsenzadeh (1997) Modelling Temperature Compensation in Chemical and Biological Oscillators. I: Chronobiology International. ISSN 0742-0528. Volum 14. s.499-510.

Rune Bakke; Hagman Edvard; Per Helge Ollestad; Roald Kommedal (1995) Naturbaserte metoder for nitrogenfjerning (Natural treatment systems for nitrogen removal). I: VANN. ISSN 0042-2592. Volum 3. s.425-437.

Mari Wøien Håland; Roald Kommedal (2019) Analysis of the Antibiotic Ampicillin in Activated Sludge: Method Development and Adsorption Studies. Universitetet i Stavanger.

Roald Kommedal; Friederike Krahner (2017) Retention and biological uptake of phosphorous in the Leikvollbekken constructed wetland. Universitetet i Stavanger.

Anders Wold; Leif Ydstebø; Roald Kommedal; Martin Løklingholm; Torleiv Bilstad (2014) Effect of Sodium on Anaerobic Treatment of Ethylene Glycol. I: Evangelos Gidarakos; Raffaello Cossu; Rainer Stegmann, Executive Summaries: 4th International Conference on "Industrial and Hazardous Waste Management". Technical University of Crete. ISBN 9789608475205. s.399-400.

Roald Kommedal; Torleiv Bilstad; Leif Ydstebø (2008) Overvåkning og potensiell omdanning av utvalgte organiske miljøgifter i renseanlegg på Nord-Jæren (Monitoring and potential conversion of selected priority organic pollutants in wastewater treatment plants in the North –Jaeren region, Norway). Universitetet i Stavanger. ISBN 9788276443578.

Grethe Kjeilen-Eilertsen; Odd Gunnar Brakstad; Roald Kommedal (2004) Literature review of aspects relevant for biodegradation in the deep-sea. Rogalandsforkning. ISBN 9788281920248.

Roald Kommedal; Rune Bakke (2003) Modeling Pseudomonas aerugionsa biofilm detachment. Universitetet i Sørøst-Norge/Universitetet i Søraust-Noreg.

Roald Kommedal; Rune Bakke (1998) Technical solutions in an ecological perspective. NIVA-report SNO 3817-98.

Roald Kommedal (1997) Lakse- og aureoppdrett i Rogaland: Forvaltning, forurensning og naturvern (Aquaqulture in Rogaland: Management, pollution and conservation). Universitetet i Sørøst-Norge/Universitetet i Søraust-Noreg.

Roald Kommedal (1997) Rensing av oljeholdig ballastvann fra Brent Spar (Treatment of oily ballast water from the Brent Spar). Tel-Tek., rapport nr. 240107-01.

Roald Kommedal (2024) Hvor blir verdiene av i biogassprosessen?. Folkemøte Årdal 360; 2024-06-18.

Roald Kommedal (2024) Organic Waste Management for Land-Based Fish Farms. Food for Brain seminar 2024; 2024-03-28.

Roald Kommedal (2024) VA ved UiS – Miljøteknologi. Historien, Hva vi har, Hvordan vi står.. Fagmøte VA; 2024-10-02.

Roald Kommedal (2024) UASB teknologi - Erfaringer fra pilotstudiet på Grødaland. Fagmøte IVAR; 2024-02-12.

Roald Kommedal (2024) Nytt avløpsdirektiv - Krav og konsekvenser. Fagmøte IVAR; 2024-03-22.

Roald Kommedal (2024) Biogass FoU ved UiS. Fagmøte Biogass Norge; 2024-03-18.

Roald Kommedal (2023) Ikke verdt en dritt?. ALUMNI UiS; 2023-09-21.

Roald Kommedal (2023) Planetens tålegrenser kvantifisert. Hva nå?. Fagnettverksdag for realfagslærere i Rogaland; 2023-11-14.

Roald Kommedal (2023) Hvordan produsere energi fra kloakken din?. Forsker Standup Forskningsdagene 2023; 2023-09-27.

Anissa Sukma Safitri; Jèrôme Hamlin; Roald Kommedal; Kim Milferstedt (2022) Ecologically engineering methanotrophic photogranules. 13th IWA Specialist Conference on Wastewater Ponds and Algal Technologies; 2022-07-03 - 2022-07-06.

Nooshin Entezari Heravi; Ilke Pala-Ozkok; Roald Kommedal (2022) Understanding the impacts of chloroxylenol antimicrobial on biological wastewater treatment systems. 6th International Symposium on the Environmental Dimension of Antibiotic Resistance; 2022-09-22 - 2022-09-27.

Daniel Basiry; Krista Michelle Kaster; Roald Kommedal (2022) Subinhibitory ampicillin concentrations favour spread of plasmid associated resistance genes.. 6th International Symposium on the Environmental Dimension of Antibiotic Resistance (EDAR6); 2022-09-22 - 2022-09-27.

Roald Kommedal; Mohammad Shamsaddini Negeri; Leif Ydstebø (2022) Denitrification of recirculated aquaculture system effluents using fish sludge as primary substrate. 2nd International Conference on Pollution Prevention and Clean Technologies (ICPPCT); 2022-12-01 - 2022-12-02.

Kristin Torgersen Ravndal; Roald Kommedal (2022) Modeling particle degradation and intermediate dynamics in a dispersed activated sludge microcosm. The 63rd International Conference of Scandinavian Simulation Society, SIMS 2022; 2022-09-20 - 2022-09-21.

Anissa Sukma Safitri; Roald Kommedal (2022) Effect of temperatures on anaerobic granulated biofilm modelling. 63rd International Conference of Scandinavian Simulation Society, SIMS 2022; 2022-09-20 - 2022-09-21.

Roald Kommedal (2021) Rensing og renseeffekter fra landbaserte akvakulturanlegg – Hva kan vi lære fra kommunal renseteknikk?. Utslipp fra landbaserte fiskeoppdrettsanlegg – teknologi -muligheter og begrensninger; 2021-09-22.

Roald Kommedal; Anissa Sukma Safitri (2021) Anaerobic municipal wastewater treatment – The solution or part of the solution towards sustainable wastewater treatment?. 1st International Conference on Pollution Prevention and Clean Technologies (ICPPCT); 2021-12-06 - 2021-12-07.

Svein Håvard Stokka; Roald Kommedal; Kristian Thorsen; Cansu Uluseker (2021) An Individual-based Model for Simulating Antibiotic Resistance Spread in Bacterial Flocs in Wastewater Treatment Plants. SIMS EUROSIM 2021 Conference on Modelling and Simulation - The 62nd International Conference of Scandinavian Simulation Society ; 2021-09-21 - 2021-09-23.

Aksel Hiorth; Roald Kommedal (2020) Korona, ebola og zombier.

Dmitry Kechasov; Roald Kommedal; Michel Verheul; Ivan Paponov (2020) GC-MS og Ion Kromatografi i veksthus. 24. Norske Symposium i Kromatografi; 2020-01-05 - 2020-01-07.

Dmitry Kechasov; Roald Kommedal; Michel Verheul; Ivan Paponov (2020) EFFECT OF ORGANIC FERTILISER ON METABOLIC PROFILE OF HYDROPONICALLY CULTIVATED TOMATO. European RFMF Metabomeeting 2020; 2020-01-22 - 2020-01-24.

Aksel Hiorth; Roald Kommedal (2020) Stol på matematikken, ikke magefølelsen. I: Forskning.no. ISSN 1891-635X.

Kristian Thorsen; Roald Kommedal; Rolf Lood (2020) Wastewater treatment plants as critical reservoirs for resistance genes - Summary of JPI-EC-AMR JTC 2016 project: Gene-gas. JPIAMR Online workshop: Interventions to reduce the development and transmission of AMR; 2020-09-03 - 2020-09-04.

Roald Kommedal; Jenny Mazarino; Anders Brattberg Wold (2019) Nutrient characteristics and biomethane potential of co-digested fecal sludge from land based Atlantic Salmon fish farming. 4th International Conference on Alternative Fuels, Energy and Environment (ICAFEE 2019); Taichung, Taiwan; 2019-10-18 - 2019-10-21.

Cansu Uluseker; Krista Michelle Kaster; Kristian Thorsen; Roald Kommedal (2019) Mechanism of Antibiotic Resistance Gene Spread in Wastewater Treatment Plants Using Activated Sludge. 4th International Conference on Alternative Fuels, Energy and Environment (ICAFEE 2019); 2019-10-18 - 2019-10-21.

Cansu Uluseker; Krista Michelle Kaster; Kristian Thorsen; Roald Kommedal (2019) Modeling Antimicrobial Resistance Gene Transfer in Wastewater Treatment Plants. Control Engineering Concepts in Systems- and Synthetic Biology; 2019-05-20 - 2019-05-22.

Cansu Uluseker; Daniel Basiry; Svein Håvard Stokka; Krista Michelle Kaster; Kristian Thorsen; Roald Kommedal (2019) Modelling Antibiotic Resistance Gene Spread in Wastewater Treatment Plants. Collaboration Meeting; 2019-12-06.

Cansu Uluseker; Daniel Basiry; Svein Håvard Stokka; Krista Michelle Kaster; Kristian Thorsen; Roald Kommedal (2019) Modelling Antibiotic Resistance Gene Spread in Wastewater Treatment Plants. JPI-AMR Meeting; 2019-12-05.

Roald Kommedal (2019) Modeling of unicellular growth – From Malthus to Food Web models in ecology. "The Wide World of Maths" lecture series ; 2019-11-13.

Eystein Opsahl; Krista Michelle Kaster; Ingrid Verpe; Linn Svendsen; Silja Helene Meling; Roald Kommedal (2018) Biodegradability of Enhanced Oil Recovery Polymers in Seawater and Their Effect on the Microbial Community. Microbial ecology in applied and natural systems; 2018-05-28 - 2018-05-29.

Anissa Sukma Safitri; Ali Farsi; Krista Michelle Kaster; Roald Kommedal (2018) Integrated Wastewater Treatment Concept for Water Resource Recovery. IWA EcoSTP18; 2018-05-25 - 2018-06-27.

Anissa Sukma Safitri; Krista Michelle Kaster; Roald Kommedal (2018) Effect of Low Temperature and Municipal Wastewater Organic Loading on UASB (Up-flow Anaerobic Sludge Blanket) Reactor Performance. IWA Biofilms: Granular Sludge Conference; 2018-03-18 - 2018-03-21.

Anissa Sukma Safitri; Krista Michelle Kaster; Gopalakrishnan Kumar; Roald Kommedal (2018) Low temperature biogas production from municipal wastewater by laboratory scale UASB granules. 3rd International Conference on Alternative Fuels, Energy and Environment (ICAFEE 2018) & 1st International Conference on Water Resources and Sustainability (ICWRS 2018); 2018-10-28 - 2018-10-31.

Roald Kommedal; Gopalakrishnan Kumar; Krista Michelle Kaster; Ilke Pala Ozkok; Kristian Thorsen (2018) A simple mathematical model for antimicrobial resistance gene transfer in wastewater treatment models. 3rd International Conference on Alternative Fuels, Energy and Environment (ICAFEE 2018) & 1st International Conference on Water Resources and Sustainability (ICWRS 2018); 2018-10-28 - 2018-10-31.

Roald Kommedal; Eystein Opsahl (2017) Fate and effects of synthetic polymers - the sub-micro-plastic problem.. No Blue, No Green. Rachel Carson prize 2017; 2017-10-04.

Roald Kommedal; Eystein Opsahl (2017) Polymer and particle degradation in the seawater. V November Conference; 2017-11-06 - 2017-11-07.

Roald Kommedal; Eystein Opsahl (2017) Polymer and Particle Degradation in Seawater - Marine fate of synthetic polymers used for IOR. Norwegian – Brazilian Business and Science Week; 2017-10-31 - 2017-11-13.

Roald Kommedal (2017) Occurrence and fate of priority organic pollutants during wastewater sludge treatment. Technical university Denmark (DTU) seminar series on Environmental Research; 2017-06-06.

Roald Kommedal; Friederike Krahner (2017) Phosphorous retention in a mature constructed wetland – effect of hydraulic loading fluctuations. Fagmøte Norsk Hydrologiråd; 2017-04-24.

Roald Kommedal (2016) Will we find ET and would we know?. NORTH Creative Network Event; 2016-03-10 - 2016-03-13.

Anne Marie Haws; Roald Kommedal; Espen Enge; Helene H Hill (2016) Annual Phosphorus Retention Efficiency of a Constructed Wetland Treating Diffuse Agricultural Runoff. 32nd Congress of the International Society of Limnology; 2016-07-31 - 2016-08-05.

Bianca Handley; Åge Molversmyr; Roald Kommedal (2016) Constructed wetlands for agricultural runoff remediation – effects on bioavailability of phosphorus. 32nd Congress of the International Society of Limnology; 2016-07-31 - 2016-08-05.

Roald Kommedal (2016) Leikvollbekken – Fosforbalanse og renseeffekt. Renseparker - Virker de? ; 2016-11-08.

Roald Kommedal (2016) Biologisk energiproduksjon. Åpen fagdag; 2016-11-13.

Roald Kommedal (2016) Fosforfangst i våtmarksplanter – Hvor mye kan fjernes?. Renseparker - Virker de?; 2016-11-08.

Inge Christ; Roald Kommedal (2016) Biogassforskning ved UiS.

Roald Kommedal; Leif Ydstebø; Torleiv Bilstad (2016) Occurrence and Fate of Priority Organica Pollutants during Wastewater Sludge Treatment. International Conference on Industrial and Hazardous Waste Management; 2016-09-27 - 2016-09-30.

Roald Kommedal; Leif Ydstebø; Torleiv Bilstad (2016) Occurrence and fate of priority organic pollutants during wastewater sludge treatment. I: Industrial and Hazardous Waste Management. ISSN 2241-3138. s.331-332.

Anders Wold; Leif Ydstebø; Roald Kommedal; Martin Løklingholm; Torleiv Bilstad (2016) Anaerobic treatment of slop water. I: Industrial and Hazardous Waste Management. ISSN 2241-3138. s.261-262.

Eystein Opsahl; Roald Kommedal (2016) Environmental fate and effects of polymer produced water. 5TH INTERNATIONAL CONFERENCE ON INDUSTRIAL AND HAZARDOUS WASTE MANAGEMENT; 2016-09-27 - 2016-10-01.

Eystein Opsahl; Roald Kommedal (2016) Environmental fate and effects of polymer produced water II. 5TH INTERNATIONAL CONFERENCE ON INDUSTRIAL AND HAZARDOUS WASTE MANAGEMENT; 2016-09-27 - 2016-10-01.

Krista Michelle Kaster; Andrea Bagi; Mona Ulas; Roald Kommedal (2015) The Effects of Corexit 9500 on Oil Biodegradation at Cold Temperatures. 5th International Symposium on Applied Microbiology and Molecular Biology in Oil Systems; 2015-06-02.

Roald Kommedal (2015) Polymers in the Environment - Fate and Effects. National IOR center seminar; 2015-11-13.

Roald Kommedal (2015) Biologisk nedbrytbarhet: Forsøksdesign og Dataanalyse. Fagdagen UiS; 2015-11-13.

Roald Kommedal (2014) Aktivt Slam Prosessen - Ny, gammel renseteknologi. Åpen dag; 2014-03-11.

Roald Kommedal (2014) 100-års jubileum for den viktigste oppfinnelsen i rensing av vann. Åpent Universitet 2014; 2014-09-28.

Merete Vadla Madland; Roald Kommedal; Aksel Hiorth (2014) Meeting at UiS 16. June 2014 Professor Johan Sjøblom (Ugelstad Laboratory, NTNU). Meeting at UiS 16. June 2014 Professor Johan Sjøblom (Ugelstad Laboratory, NTNU); 2014-06-16.

Anders Wold; Leif Ydstebø; Roald Kommedal; Martin Løklingholm; Torleiv Bilstad (2014) Effect of Sodium on anaerobic treatment of Ethylene Glycol. 4th International Conference, Industrial and Hazardous Waste Management; 2014-09-02 - 2014-09-05.

Merete Vadla Madland; Roald Kommedal; Aksel Hiorth (2014) The National IOR Centre of Norway - Research highlights abd ambitions. Besøk av statssekretær Bjørn Haugstad; 2014-11-04.

Andrea Bagi; Daniela M. Pampanin; Anders Lanzén; Torleiv Bilstad; Roald Kommedal (2014) Arctic bacteria are “as good as” temperate counterparts in removing toxic oil components from the marine environment. 5 th NETS (Norwegian Environmental Toxicology Symposium); 2014-10-22 - 2014-10-24.

Roald Kommedal (2013) Hvem, Hva, Hvor (mye)? GCMS: Miljøkjemikerens organisk foretrukne.... Åpen Fagdag, UiS; 2013-11-13.

Kristin Torgersen Ravndal; Roald Kommedal (2013) Bacterial polymer degradation in natural river water. 5th IWA Specialist Conference on Natural Organic Matter Research; 2013-10-01 - 2013-10-04.

Roald Kommedal (2012) Olje og Miljøsikkerhet. Populærvitenskapelig workshop/kunst utstilling; 2012-10-12 - 2012-10-14.

Roald Kommedal (2012) Hydrolysis of particulate and polymeric substances in biofilms. EAWAG workshop 30 November 2012; 2012-11-29 - 2012-11-30.

Malcolm Andrew Kelland; Richard Hoogenboom; Luca Del Villano; Roald Kommedal; Ulrich S. Schubert; Martin W. M. Fijten (2012) POLY(2-OXAZOLINE)S AS KINETIC GAS HYDRATE INHIBITORS. 243rd ACS National Meeting & Exposition; 2012-03-25 - 2012-03-29.

Kristin Torgersen Ravndal; Roald Kommedal (2012) A quantitative model of bacterial particle and polymer degradation in aquatic systems. 14th International Symposium on Microbial Ecology; 2012-08-19 - 2012-08-24.

Kristin Torgersen Ravndal; Andrea Bagi; Roald Kommedal (2012) The effect of hydrostatic pressure on biodegradation of a mixture of benzene, toluene, ethylbenzene and o-xylene. 14th International Symposium on Microbial Ecology; 2012-08-19 - 2012-08-24.

Andrea Bagi; Anders Lanzén; Torleiv Bilstad; Roald Kommedal (2012) Naphthalene degrading prokaryotic communities of Arctic and Temperate seas. International Symposium on Microbial Ecology (ISME) 14 ; 2012-08-19 - 2012-08-24.

Roald Kommedal; Andrea Bagi; Torleiv Bilstad; O.G. Brakstad (2010) Biodegradation of naphthalene in Temperate and Arctic marine environment. 13th International Conference on Microbial Ecology (ISME13); 2010-08-22 - 2010-08-27.

Malcolm Kelland; Roald Kommedal; Luca Del Villano (2008) A Class Of Kinetic Hydrate Inhibitor With Good Biodegradability. 6th International Conference on Gas Hydrates (ICGH6); 2008-07-06 - 2008-07-10.

Roald Kommedal (2001) Degradation of dextran in biofilms: size effects, enzyme location and intermediate formation. 4th annual BioToBio meeting; 2001-09-13 - 2001-09-15.

E. Morgenroth; Roald Kommedal; P. Harremoes (2001) Process and modeling of hydrolysis of particulate organic matter in aerobic wastewater treatment : a review. 5th Kollekolle Seminar on Activated Sludge Modelling; 2001-11-10 - 2001-11-12.

Roald Kommedal; Rune Bakke (2000) Modelling Pseudomonas aeruginosa EPS production. Biofilms 2000; 2000-07-16 - 2000-07-20.

Roald Kommedal; Poul Harremoes (2000) Biofilm reactor design. 3rd annual BioToBio meeting; 2000-11-27 - 2000-11-28.

Roald Kommedal; Rune Bakke (2000) Pseudomonas aeruginosa biofilm detachment. Biofilms 2000; 2000-07-16 - 2000-07-20.

Roald Kommedal; Rune Bakke (2000) Pseudonas aeruginosa biofilm detachment. International Specialist Conference on Microbial Extracellular Polymeric Substances; 2000-09-18 - 2000-09-20.

Roald Kommedal; Rune Bakke (2000) Modelling production of extracellular polymeric substances in a Pseudomonas aeruginosa chemostat culture. International Specialist Conference on Microbial Extracellular Polymeric Substances; 2000-09-18 - 2000-09-20.

Roald Kommedal; T. Thorbjørnsen; Rune Bakke (1999) Hydrolysis of adsorbed particulate organic matter in arobic films. 4th International Conference on Biofilm Systems; 1999-10-17 - 1999-10-21.

Arne Ingvar Helland; Roald Kommedal; Rune Bakke (1997) A wastewater and sludge treatment process integrating biofilms, wetlands and aerobic sludge digestion for nutrient recovery. Nordisk konferens; Kväverening och biologisk fosforrening; 1997-02-02 - 1997-02-03.