| Biological phosphorus removal in a sequencing batch moving bed biofilm reactor H Helness, H Ødegaard Water Science and Technology 40 (4-5), 161-168, 1999 | 91 | 1999 |
| Biological phosphorus and nitrogen removal in a sequencing batch moving bed biofilm reactor H Helness, H Ødegaard Water science and technology 43 (1), 233-240, 2001 | 83 | 2001 |
| Effect of organic loading rate on a wastewater treatment process combining moving bed biofilm and membrane reactors E Melin, T Leiknes, H Helness, V Rasmussen, H Ødegaard Water science and technology 51 (6-7), 421-430, 2005 | 63 | 2005 |
| Enhancing a transition to a circular economy in the water sector: The eu project wider uptake G Mannina, L Badalucco, L Barbara, A Cosenza, D Di Trapani, G Gallo, ... Water 13 (7), 946, 2021 | 53 | 2021 |
| Biological phosphorus removal in a moving bed biofilm reactor H Helness Fakultet for ingeniørvitenskap og teknologi, 2007 | 49 | 2007 |
| A comparison of biofilm growth and water quality changes in sewers with anoxic and anaerobic (septic) conditions A Æsøy, M Storfjell, L Mellgren, H Helness, G Thorvaldsen, H Ødegaard, ... Water Science and Technology 36 (1), 303-310, 1997 | 44 | 1997 |
| High rate biological/chemical treatment based on the moving bed biofilm process combined with coagulation H Ødegaard, B Gisvold, H Helness, F Sjøvold, L Zuliang Chemical Water and Wastewater Treatment VI: Proceedings of the 9th …, 2000 | 25 | 2000 |
| High-rate wastewater treatment combining a moving bed biofilm reactor and enhanced particle separation H Helness, E Melin, Y Ulgenes, P Järvinen, V Rasmussen, H Ødegaard Water Science and Technology 52 (10-11), 117-127, 2005 | 20 | 2005 |
| Principal component analysis for decision support in integrated water management H Helness, S Damman, E Sivertsen, R Ugarelli Water Supply 19 (8), 2256-2262, 2019 | 14 | 2019 |
| A multivariate analysis on the influence of indigenous crude oil components on the quality of produced water. Comparison between bench and rig scale experiments A Silset, GR Flåten, H Helness, E Melin, G Øye, J Sjöblom Journal of dispersion science and technology 31 (3), 392-408, 2010 | 13 | 2010 |
| Dissolved air flotation of bioreactor effluent using low dosages of polymer and iron E Melin, H Helness, H Ødegaard, H Hahn, E Hoffman Chemical Water and Wastewater Treatment VII, 261-271, 2002 | 13 | 2002 |
| Biological phosphorus and nitrogen removal from municipal wastewater with a moving bed biofilm reactor H Helness, H Odegaard Proc. IWA Specialized Conference, Nutrient Management in Wastewater …, 2005 | 12 | 2005 |
| Hydrological performance of lined permeable pavements in Norway EMH Abdalla, I Selseth, TM Muthanna, H Helness, K Alfredsen, ... Blue-Green Systems 3 (1), 107-118, 2021 | 11 | 2021 |
| High-rate wastewater treatment based on moving bed biofilm reactor, polymer coagulation and flotation E Melin, H Helness, T Kenakkala, H Ødegaard, H Hahn, E Hoffman Chemical Water and Wastewater Treatment VIII, 39, 2004 | 11 | 2004 |
| Sustainability and the social construction of technology: the case of RWH as source of water supply in greater Accra S Damman, H Helness, B Amisigo, R Asare, RA Banu, KA Asante, ... European Journal of Sustainable Development 6 (4), 41-41, 2017 | 8 | 2017 |
| Citizen science to enhance evaluation of local wastewater treatment–a case study from Oslo S Damman, H Helness, ILT Grindvoll, C Sun Water Science and Technology 79 (10), 1887-1896, 2019 | 7 | 2019 |
| Håndtering av slam fra rensing av avløp i settefiskanlegg: Forprosjektrapport LD Blytt, TK Haraldsen, H Helness, B Paulsrud, Y Ulgenes SINTEF rapport SBF2011F0081. SINTEF Byggforsk, Trondheim 37, 2011 | 7 | 2011 |
| CHEMICAL WATER AND WASTEWATER TREATMENT V H Ødegaard, B Gisvold, H Helness, F Sjøvold, L Zuliang Proceedings of the 1998, 1998 | 6 | 1998 |
| Enhancing a transition to a circular economy in the water sector: The eu project wider uptake. Water 13 (7), 946 G Mannina, L Badalucco, L Barbara, A Cosenza, D Di Trapani, G Gallo, ... | 5 | 2021 |
| High rate filtration for local treatment of combined sewer overflow H Helness, C Sun, S Damman, M Ahmadi, G Raspati, V Bjerkelund, ... Water Science and Technology 79 (6), 1206-1213, 2019 | 5 | 2019 |
