Roald Kommedal
Associate Professor
Contact
Telephone: 51831852
Email: roald.kommedal@uis.no
Room: KE C-278
Department
Faculty of Science and Technology
Department of Chemistry, Bioscience and Environmental Engineering
Publications
Vitenskapelige publikasjoner
Basiry, Daniel; Kommedal, Roald; Kaster, Krista Michelle
(2024)
Effect of subinhibitory concentrations on the spreading of the ampicillin resistance gene blaCMY-2 in an activated sludge microcosm.Environmental technology.
ISSN 0959-3330.
Basiry, Daniel; Kommedal, Roald; Kaster, Krista Michelle
(2024)
The presence of antibiotic-resistant bacteria at four Norwegian wastewater treatment plants: seasonal and wastewater-source effects.Frontiers in Antibiotics.
Volum 3.
Safitri, Anissa Sukma; Kaster, Krista Michelle; Kommedal, Roald
(2022)
Effect of low temperature and municipal wastewater organic loading on anaerobic granule reactor performance.Bioresource Technology.
ISSN 0960-8524.
Volum 360.
Semaan, Georgeio; Atelge, M.R.; Dune Cayetano, Roent; Kumar, Gopalakrishnan; Kommedal, Roald
(2022)
Spent coffee grounds anaerobic digestion: Investigating substrate to inoculum ratio and dilute acid thermal pretreatment.Fuel.
ISSN 0016-2361.
Volum 331.
Safitri, Anissa Sukma; Kommedal, Roald
(2022)
Effect of temperatures on anaerobic granulated biofilm modelling.Linköping Electronic Conference Proceedings.
ISSN 1650-3686.
DOI: 10.3384/ecp192030
Ravndal, Kristin Torgersen; Kommedal, Roald
(2022)
Modelling particle degradation and intermediate dynamics in a dispersed activated sludge microcosm.
Linköping Electronic Conference Proceedings.
ISSN 1650-3686.
Basiry, Daniel; Entezari Heravi, Nooshin; Uluseker, Cansu; Kaster, Krista Michelle; Kommedal, Roald; Pala-Ozkok, Ilke
(2022)
The effect of disinfectants and antiseptics on co- and cross-selection of resistance to antibiotics in aquatic environments and wastewater treatment plants.Frontiers in Microbiology.
ISSN 1664-302X.
Volum 13.
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.
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.
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.
Stokka, Svein Håvard; Kommedal, Roald; Thorsen, Kristian; Uluseker, Cansu
(2021)
An Individual-based Model for Simulating Antibiotic Resistance Spread in Bacterial Flocs in Wastewater Treatment Plants.Linköping Electronic Conference Proceedings.
ISSN 1650-3686.
Hefte 185.
s.436-443.
DOI: 10.3384/ecp21185436
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.
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.
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
(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.
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.
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.
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.
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.
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.
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; 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.
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.
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.
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.
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.
Ruoff, Peter; Rensing, Ludger; Kommedal, Roald; Mohsenzadeh, S.
(1997)
Modelling Temperature Compensation in Chemical and Biological Oscillators.
Chronobiology International.
ISSN 0742-0528.
Volum 14.
s.499-510.
Bakke, Rune; Edvard, Hagman; Ollestad, Per Helge; Kommedal, Roald
(1995)
Naturbaserte metoder for nitrogenfjerning (Natural treatment systems for nitrogen removal).
Vann.
ISSN 0042-2592.
Volum 3.
s.425-437.
Bøker og kapitler
Wøien Håland, Mari
(2019)
Analysis of the Antibiotic Ampicillin in Activated Sludge: Method Development and Adsorption Studies.
Universitetet i Stavanger.
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; Bilstad, Torleiv; Ydstebø, Leif
(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 978-82-7644-357-8.
Kjeilen-Eilertsen, Grethe; Brakstad, Odd Gunnar; Kommedal, Roald
(2004)
Literature review of aspects relevant for biodegradation in the deep-sea.
ISBN 82-8192-024--6.
Kommedal, Roald
(2004)
Degradation of polymeric and particulate organic carbon in biofilms.
Norges teknisk-naturvitenskapelige universitet.
Hefte 2003 : 101.
Kommedal, Roald; Bakke, Rune
(2003)
Modeling Pseudomonas aerugionsa biofilm detachment.
Universitetet i Sørøst-Norge/Universitetet i Søraust-Noreg.
Hefte 2003:03:00.
Kommedal, Roald; Bakke, Rune
(1998)
Technical solutions in an ecological perspective.
Kommedal, Roald
(1997)
Rensing av oljeholdig ballastvann fra Brent Spar (Treatment of oily ballast water from the Brent Spar).
Kommedal, Roald
(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.
Formidling
Kommedal, Roald
(2023)
Planetens tålegrenser kvantifisert. Hva nå?.
Fagnettverksdag for realfagslærere i Rogaland;
2023-11-14.
Kommedal, Roald
(2023)
Hvordan produsere energi fra kloakken din?.
Forsker Standup Forskningsdagene 2023;
2023-09-27.
Kommedal, Roald
(2023)
Ikke verdt en dritt?.
ALUMNI UiS;
2023-09-21.
Ravndal, Kristin Torgersen; Kommedal, Roald
(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.
Safitri, Anissa Sukma; Kommedal, Roald
(2022)
Effect of temperatures on anaerobic granulated biofilm modelling.
63rd International Conference of Scandinavian Simulation Society, SIMS 2022;
2022-09-20 - 2022-09-21.
Safitri, Anissa Sukma; Hamlin, Jèrôme; Kommedal, Roald; Milferstedt, Kim
(2022)
Ecologically engineering methanotrophic photogranules .
13th IWA Specialist Conference on Wastewater Ponds and Algal Technologies;
2022-07-03 - 2022-07-06.
Basiry, Daniel; Kaster, Krista Michelle; Kommedal, Roald
(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.
Entezari Heravi, Nooshin; Pala-Ozkok, Ilke; Kommedal, Roald
(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.
Kommedal, Roald; Shamsaddini Negeri, Mohammad; Ydstebø, Leif
(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.
Kommedal, Roald
(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.
Kommedal, Roald; Safitri, Anissa Sukma
(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.
Stokka, Svein Håvard; Kommedal, Roald; Thorsen, Kristian; Uluseker, Cansu
(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.
Hiorth, Aksel; Kommedal, Roald
(2020)
Korona, ebola og zombier.
Dagsavisen.
ISSN 1503-2892.
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 .
JPIAMR Online workshop: Interventions to reduce the development and transmission of AMR;
2020-09-03 - 2020-09-04.
Kechasov, Dmitry; Kommedal, Roald; Verheul, Michel; Paponov, Ivan
(2020)
EFFECT OF ORGANIC FERTILISER ON METABOLIC PROFILE OF HYDROPONICALLY CULTIVATED TOMATO.
European RFMF Metabomeeting 2020;
2020-01-22 - 2020-01-24.
Kechasov, Dmitry; Kommedal, Roald; Verheul, Michel; Paponov, Ivan
(2020)
GC-MS og Ion Kromatografi i veksthus.
24. Norske Symposium i Kromatografi;
2020-01-05 - 2020-01-07.
Uluseker, Cansu; Kaster, Krista Michelle; Thorsen, Kristian; Kommedal, Roald
(2019)
Modeling Antimicrobial Resistance Gene Transfer in Wastewater Treatment Plants.
Control Engineering Concepts in Systems- and Synthetic Biology;
2019-05-20 - 2019-05-22.
Uluseker, Cansu; Kaster, Krista Michelle; Thorsen, Kristian; Kommedal, Roald
(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.
Kommedal, Roald
(2019)
Modeling of unicellular growth – From Malthus to Food Web models in ecology.
"The Wide World of Maths" lecture series ;
2019-11-13.
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.
4th International Conference on Alternative Fuels, Energy and Environment (ICAFEE 2019); Taichung, Taiwan;
2019-10-18 - 2019-10-21.
Uluseker, Cansu; Basiry, Daniel; Stokka, Svein Håvard; Kaster, Krista Michelle; Thorsen, Kristian; Kommedal, Roald
(2019)
Modelling Antibiotic Resistance Gene Spread in Wastewater Treatment Plants.
JPI-AMR Meeting;
2019-12-05.
Uluseker, Cansu; Basiry, Daniel; Stokka, Svein Håvard; Kaster, Krista Michelle; Thorsen, Kristian; Kommedal, Roald
(2019)
Modelling Antibiotic Resistance Gene Spread in Wastewater Treatment Plants.
Collaboration Meeting;
2019-12-06.
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 .
IWA Biofilms: Granular Sludge Conference;
2018-03-18 - 2018-03-21.
Safitri, Anissa Sukma; Farsi, Ali; Kaster, Krista Michelle; Kommedal, Roald
(2018)
Integrated Wastewater Treatment Concept for Water Resource Recovery.
IWA EcoSTP18;
2018-05-25 - 2018-06-27.
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 .
Microbial ecology in applied and natural systems;
2018-05-28 - 2018-05-29.
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.
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.
Safitri, Anissa Sukma; Kaster, Krista Michelle; Kumar, Gopalakrishnan; Kommedal, Roald
(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.
Kommedal, Roald; Opsahl, Eystein
(2017)
Fate and effects of synthetic polymers - the sub-micro-plastic problem..
No Blue, No Green. Rachel Carson prize 2017;
2017-10-04.
Kommedal, Roald; Opsahl, Eystein
(2017)
Polymer and particle degradation in the seawater .
V November Conference;
2017-11-06 - 2017-11-07.
Kommedal, Roald; Opsahl, Eystein
(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.
Kommedal, Roald
(2017)
Occurrence and fate of priority organic pollutants during wastewater sludge treatment.
Technical university Denmark (DTU) seminar series on Environmental Research;
2017-06-06.
Kommedal, Roald; Krahner, Friederike
(2017)
Phosphorous retention in a mature constructed wetland – effect of hydraulic loading fluctuations.
Fagmøte Norsk Hydrologiråd;
2017-04-24.
Kommedal, Roald; Ydstebø, Leif; Bilstad, Torleiv
(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.
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; 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.
5TH INTERNATIONAL CONFERENCE ON INDUSTRIAL AND HAZARDOUS WASTE MANAGEMENT;
2016-09-27 - 2016-10-01.
Opsahl, Eystein; Kommedal, Roald
(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.
Kommedal, Roald
(2016)
Will we find ET and would we know?.
NORTH Creative Network Event;
2016-03-10 - 2016-03-13.
Handley, Bianca; Molversmyr, Åge; Kommedal, Roald
(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.
Haws, Anne Marie; Kommedal, Roald; Enge, Espen; Hill, Helene H
(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.
Kommedal, Roald
(2016)
Biologisk energiproduksjon.
Åpen fagdag;
2016-11-13.
Kommedal, Roald
(2016)
Leikvollbekken – Fosforbalanse og renseeffekt.
Renseparker - Virker de? ;
2016-11-08.
Kommedal, Roald
(2016)
Fosforfangst i våtmarksplanter – Hvor mye kan fjernes?.
Renseparker - Virker de?;
2016-11-08.
Christ, Inge; Kommedal, Roald
(2016)
Biogassforskning ved UiS.
Kaster, Krista Michelle; Bagi, Andrea; Ulas, Mona; Kommedal, Roald
(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 - .
Kommedal, Roald
(2015)
Polymers in the Environment - Fate and Effects.
National IOR center seminar;
2015-11-13.
Kommedal, Roald
(2015)
Biologisk nedbrytbarhet: Forsøksdesign og Dataanalyse.
Fagdagen UiS;
2015-11-13.
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.
5 th NETS (Norwegian Environmental Toxicology Symposium);
2014-10-22 - 2014-10-24.
Madland, Merete Vadla; Kommedal, Roald; Hiorth, Aksel
(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.
Madland, Merete Vadla; Kommedal, Roald; Hiorth, Aksel
(2014)
The National IOR Centre of Norway - Research highlights abd ambitions.
Besøk av statssekretær Bjørn Haugstad;
2014-11-04.
Kommedal, Roald
(2014)
100-års jubileum for den viktigste oppfinnelsen i rensing av vann.
Åpent Universitet 2014;
2014-09-28.
Kommedal, Roald
(2014)
Aktivt Slam Prosessen - Ny, gammel renseteknologi.
Åpen dag;
2014-03-11.
Wold, Anders; Ydstebø, Leif; Kommedal, Roald; Løklingholm, Martin; Bilstad, Torleiv
(2014)
Effect of Sodium on anaerobic treatment of Ethylene Glycol.
4th International Conference, Industrial and Hazardous Waste Management;
2014-09-02 - 2014-09-05.
Kommedal, Roald
(2013)
Hvem, Hva, Hvor (mye)? GCMS: Miljøkjemikerens organisk foretrukne....
Åpen Fagdag, UiS;
2013-11-13.
Ravndal, Kristin Torgersen; Kommedal, Roald
(2013)
Bacterial polymer degradation in natural river water.
5th IWA Specialist Conference on Natural Organic Matter Research;
2013-10-01 - 2013-10-04.
Ravndal, Kristin Torgersen; Kommedal, Roald
(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.
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.
14th International Symposium on Microbial Ecology;
2012-08-19 - 2012-08-24.
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.
243rd ACS National Meeting & Exposition;
2012-03-25 - 2012-03-29.
Bagi, Andrea; Lanzén, Anders; Bilstad, Torleiv; Kommedal, Roald
(2012)
Naphthalene degrading prokaryotic communities of Arctic and Temperate seas.
International Symposium on Microbial Ecology (ISME) 14 ;
2012-08-19 - 2012-08-24.
Kommedal, Roald
(2012)
Hydrolysis of particulate and polymeric substances in biofilms.
EAWAG workshop 30 November 2012;
2012-11-29 - 2012-11-30.
Kommedal, Roald
(2012)
Olje og Miljøsikkerhet.
Populærvitenskapelig workshop/kunst utstilling;
2012-10-12 - 2012-10-14.
Kommedal, Roald; Bagi, Andrea; Bilstad, Torleiv; Brakstad, O.G.
(2010)
Biodegradation of naphthalene in Temperate and Arctic marine environment.
13th International Conference on Microbial Ecology (ISME13);
2010-08-22 - 2010-08-27.
Kelland, Malcolm; Kommedal, Roald; Del Villano, Luca
(2008)
A Class Of Kinetic Hydrate Inhibitor With Good Biodegradability.
6th International Conference on Gas Hydrates (ICGH6);
2008-07-06 - 2008-07-10.
Kommedal, Roald
(2001)
Degradation of dextran in biofilms: size effects, enzyme location and intermediate formation.
4th annual BioToBio meeting;
2001-09-13 - 2001-09-15.
Morgenroth, E.; Kommedal, Roald; Harremoes, P.
(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.
Kommedal, Roald; Bakke, Rune
(2000)
Pseudomonas aeruginosa biofilm detachment.
Biofilms 2000;
2000-07-16 - 2000-07-20.
Kommedal, Roald; Bakke, Rune
(2000)
Modelling Pseudomonas aeruginosa EPS production.
Biofilms 2000;
2000-07-16 - 2000-07-20.
Kommedal, Roald; Harremoes, Poul
(2000)
Biofilm reactor design.
3rd annual BioToBio meeting;
2000-11-27 - 2000-11-28.
Kommedal, Roald; Bakke, Rune
(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.
Kommedal, Roald; Bakke, Rune
(2000)
Pseudonas aeruginosa biofilm detachment.
International Specialist Conference on Microbial Extracellular Polymeric Substances;
2000-09-18 - 2000-09-20.
Kommedal, Roald; Thorbjørnsen, T.; Bakke, Rune
(1999)
Hydrolysis of adsorbed particulate organic matter in arobic films.
4th International Conference on Biofilm Systems;
1999-10-17 - 1999-10-21.
Helland, Arne Ingvar; Kommedal, Roald; Bakke, Rune
(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.