Harsha Ratnaweera er professor i vann- og avløpsteknologi ved Fakultet for naturvitenskap og teknologi, Norges miljø- og biovitenskapelige universitet (deltid fra 2001, heltid fra 2012). Han var ansatt som direktør for internasjonale prosjekter og innovasjon ved Norsk institutt for vannforskning (NIVA) 1991-2012, hvor han initierte og ledet NIVAs kommersialisering av forskningsresultater. Han har en Dr. Ing. grad i sivilingeniør (1992) fra Norges teknisk-naturvitenskapelige universitet NTNU, og en MSc (Hons) Chemical Engineering (1987) fra National Technical University of Ukraine KPI, Ukraina.
Harsha er en Distinguised Fellow i International Water Association (IWA) og direktør i IWAs styret. Han er visepresident i European Water Association - EWA. Harsha er Fellow ved European Academy of Sciences og Det Norske Teknologiske Vitenskapsakademi.
Harshas forskningsområder er på modellering og optimalisering av koagulasjonsprosesser i vann- og avløpsvannbehandling; Sanntidsovervåking og kontroll av behandlingsprosesser; Helhetlig optimalisering av avløpssystemer; virtuelle sensorer og validering av målinger; membranprosess; bildeanalyse for sensorutvikling; forvaltning av vannressurser; og harmonisering av vannrelaterte hovedfagsstudier i Asia, Afrika og Eurasia med Norge.
Han har vært medlem av den norske nasjonale kommisjonen for UNESCO og fungerer som styreleder og styremedlem i flere vann- og miljørelaterte organisasjoner i Norge. Han har jobbet som rådgiver/konsulent for Verdensbanken, UNECE, Norsk Utenriksdepartementet, NORAD og SIDA. Han har jobbet i mange land i Asia, Afrika, Øst- og Vest-Europa og snakker flytende engelsk, norsk og russisk.
Harsha har initiert og ledet et nettverk av prosjekter som involverer 100 universiteter fra 54 land (www.WaterHarmony.net).Han har også ledet organiseringen av fire internasjonale konferanser i IWA Particle Separation Conference, Oslo og EWA Water Management in Cold Climates, Spitsbergen i juni 2016, EWA Sustainable Urban Drainage Systems, Oslo, 2019 og 2nd IWA-EWA Conference on Water Management in Cold Climates, Harbin, Kina i 2020. Harsha er leder av EWAs vårkonferanse om å adressere endringer i byene Avløpsdirektivet i mai 2025 og den 14. IWA-konferansen om instrumentering, kontroll og automatisering i juni 2025, begge i Oslo.
Mer informasjon: www.WaterHarmony.net
Liste med publikasjoner fra min forskning. (Cristin)
Nair, A., Yavorska, V., Hykkerud, A., Ratnaweera, H.; A cloud-based infrastructure to deploy supervisory forecast models for predictive coagulant dosing control. Water Practice and Technology 2024; wpt2024091. doi: https://doi.org/10.2166/wpt.2024.091
Loganathan, P.; Kandasamy, J.; Ratnaweera, H.; Vigneswaran, S. Treatment Trends and Hybrid Methods for the Removal of Poly- and Perfluoroalkyl Substances from Water—A Review. Appl. Sci. 2024, 14, 2574. https://doi.org/10.3390/app14062574
Loganathan, P., Kandasamy, J., Ratnaweera, H. et al. Use of wastewater alum-coagulation sludge as a phosphorus fertiliser – a mini review. Environ Sci Pollut Res 31, 18412–18421 (2024). https://doi.org/10.1007/s11356-024-32497-6
Ratnaweera, H., Nair, A., Hykkerud, Q., Sivchenko, N., Ratnaweera, D. and Condrachi, L. (2023). Achieving legislative requirements in wastewater treatment using digital tools. IEEE 28th International Conference on Emerging Technologies and Factory Automation (ETFA), Sinaia, Romania, 2023, pp. 1-4. https://doi.org/10.1109/ETFA54631.2023.10275453
Wang, X., Chen, S., Bi, X., Chen, N., Yang, T., Wang, L., Maletskyi, Z., & Ratnaweera, H. (2023). Morphological image analysis of biofilm evolution with quantitative analysis in a moving bed biofilm reactor. Science of The Total Environment, 856, 159199. https://doi.org/10.1016/J.SCITOTENV.2022.159199
Abeyratne, W. M. L. K., Weerakoon, S. B., Neluwala, P., & Ratnaweera, H. (2023). Suspended solid removal efficiency of plate settlers and tube settlers analysed by CFD modelling. Water Science and Technology, 87(9), 2116–2127. https://doi.org/10.2166/WST.2023.107
Antonio, M., Rodrigues, S., Scarazzato, T., Guillen Burrieza, E., Hermassi, M., Devaisy, S., Kandasamy, J., Nguyen, T. V., Ratnaweera, H., & Vigneswaran, S. (2023). Membranes in Water Reclamation: Treatment, Reuse and Concentrate Management. Membranes 2023, Vol. 13, Page 605, 13(6), 605. https://doi.org/10.3390/MEMBRANES13060605
Chen, N., Wang, X., Huang, M., Maletskyi, Z., Ratnaweera, H., & Bi, X. (2023). Quantitative study of biofilm yield and biomass distribution of a multi-stage moving-bed biofilm system. Water Reuse, 13(2), 250–268. https://doi.org/10.2166/WRD.2023.009
Devaisy, S., Kandasamy, J., Aryal, R., Johir, M. A. H., Ratnaweera, H., & Vigneswaran, S. (2023). Removal of Organics with Ion-Exchange Resins (IEX) from Reverse Osmosis Concentrate. Membranes, 13(2), 136. https://doi.org/10.3390/membranes13020136
Kyrii, S., Maletskyi, Z., Klymenko, N., Ratnaweera, H., Mitchenko, T., Dontsova, T., & Kosogina, I. (2023). Impact of modification by red mud components on the sorption properties of activated carbon. Applied Surface Science Advances, 16, 100412. https://doi.org/10.1016/J.APSADV.2023.100412
Loganathan, P., Kandasamy, J., Ratnaweera, H., & Vigneswaran, S. (2023). Submerged membrane/adsorption hybrid process in water reclamation and concentrate management—a mini review. Environmental Science and Pollution Research, 30(15), 42738–42752. https://doi.org/10.1007/s11356-022-23229-9
Loganathan, P., Vigneswaran, S., Kandasamy, J., Cuprys, A. K., Maletskyi, Z., & Ratnaweera, H. (2023). Treatment Trends and Combined Methods in Removing Pharmaceuticals and Personal Care Products from Wastewater—A Review. Membranes, 13(2), 158. https://doi.org/10.3390/MEMBRANES13020158
Loganathan, P., Vigneswaran, S., Kandasamy, J., Nguyen, T. V., Katarzyna Cuprys, A., & Ratnaweera, H. (2023). Bisphenols in water: Occurrence, effects, and mitigation strategies. Chemosphere, 328, 138560. https://doi.org/10.1016/J.CHEMOSPHERE.2023.138560
Nguyen, T. H., Nguyen, T. V., Vigneswaran, S., Ha, N. T. H., & Ratnaweera, H. (2023). A Review of Theoretical Knowledge and Practical Applications of Iron-Based Adsorbents for Removing Arsenic from Water. Minerals 2023, Vol. 13, Page 741, 13(6), 741. https://doi.org/10.3390/MIN13060741
Zhou, X., Jiang, Z., Gu, J., Bi, X., Liu, J., Wang, X., Yang, T., Shi, X., Cheng, L., Huang, S., Wang, X., Ratnaweera, H., Maletskyi, Z., & Nie, S. (2023). Performance characteristics and bacterial community analysis of a novel two-step-feed three-stage A/O-MBBR system for nitrogen removal in municipal wastewater. Journal of Water Process Engineering, 52, 103513. https://doi.org/10.1016/J.JWPE.2023.103513
Fonseka, C., Ryu, S., Choo, Y., Naidu, G., Kandasamy, J., Thiruvenkatachari, R., Foseid, L., Ratnaweera, H., Vigneswaran, S. (2023). Selective recovery of europium from real acid mine drainage by using novel amine based modified SBA15 adsorbent and membrane distillation system, Journal of Water Process Engineering, Volume 56, 104551, https://doi.org/10.1016/j.jwpe.2023.104551
Țîru, A.E., Vasiliev, I., Diaconu, L., Vilanova, R., Voipan, D. and Ratnaweera, R. (2023). Integration of ANN for Accurate Estimation and Control in Wastewater Treatment. IEEE 28th International Conference on Emerging Technologies and Factory Automation (ETFA), Sinaia, Romania, 2023, pp. 1-4, https://doi.org/10.1109/ETFA54631.2023.10275569
Ghinea, L.M., Miron, M. and Ratnaweera, H. (2023). A Deep Learning Approach For Faults Recognition of Dissolved Oxygen Sensor in Wastewater Treatment Plants. IEEE 28th International Conference on Emerging Technologies and Factory Automation (ETFA), Sinaia, Romania, 2023, pp. 1-5 https://doi.org/10.1109/ETFA54631.2023.10275716 .
Devaisy, S., Kandasamy, J., Nguyen, T. V., Johir, M. A. H., Ratnaweera, H., & Vigneswaran, S. (2022). Comparison of Membrane-Based Treatment Methods for the Removal of Micro-Pollutants from Reclaimed Water. Water 2022, Vol. 14, Page 3708, 14(22), 3708. https://doi.org/10.3390/W14223708
Dubovik, V., Ratnaweera, H., Markevich, R., Issayeva, A., Maletskyi, Z., & Sorogovets, V. (2022). Inhibition effects of petroleum products on nitrogen and phosphorous removal. IOP Conference Series: Earth and Environmental Science, 981(4), 042008. https://doi.org/10.1088/1755-1315/981/4/042008
Fonseka, C., Ryu, S., Naidu, G., Kandasamy, J., Ratnaweera, H., & Vigneswaran, S. (2022). Metal-organic frameworks for recovery of valuable elements. Nano-Enabled Technologies for Water Remediation, 377–392. https://doi.org/10.1016/B978-0-323-85445-0.00016-3
Li, F., Wang, X., Yang, M., Zhu, M., Chen, W., Li, Q., Sun, D., Bi, X., Maletskyi, Z., & Ratnaweera, H. (2022). Detection Limits of Antibiotics in Wastewater by Real-Time UV–VIS Spectrometry at Different Optical Path Length. Processes 2022, Vol. 10, Page 2614, 10(12), 2614. https://doi.org/10.3390/PR10122614
Mojiri, A., Zhou, J. L., Ratnaweera, H., Rezania, S., & Nazari V, M. (2022). Pharmaceuticals and personal care products in aquatic environments and their removal by algae-based systems. Chemosphere, 288, 132580. https://doi.org/10.1016/J.CHEMOSPHERE.2021.132580
Nair, A., Hykkerud, A., & Ratnaweera, H. (2022). Estimating Phosphorus and COD Concentrations Using a Hybrid Soft Sensor: A Case Study in a Norwegian Municipal Wastewater Treatment Plant. Water 2022, Vol. 14, Page 332, 14(3), 332. https://doi.org/10.3390/W14030332
Nair, A., Weitzel, J., Hykkerud, A., & Ratnaweera, H. (2022). Supervised machine learning based system for automatic fault-detection in water-quality sensors. 2022 26th International Conference on System Theory, Control and Computing, ICSTCC 2022 - Proceedings, 64–67. https://doi.org/10.1109/ICSTCC55426.2022.9931788
Ødegaard, H., Ratnaweera, H., & Rusten, B. (2022). Instrumentation, control and automation (ICA) of MBBR plants for nutrient removal in wastewater: ICA of MBBR plants. Celebrating Passion for Water, Science and Technology, 1–16. https://doi.org/10.2166/9781789063370_0001
Pradhan, M., Johir, M. A. H., Kandasamy, J., Ratnaweera, H., & Vigneswaran, S. (2022). Effects of Viscosity on Submerged Membrane Microfiltration Systems. Membranes, 12(8), 780. https://doi.org/10.3390/MEMBRANES12080780
Ratnaweera, H., Sætersdal, T., Weerakoon, S. B., & Mutua, F. M. (2022). Editorial: Water management addressing societal and climate change challenges. Journal of Water and Climate Change, 13(2), v–vii. https://doi.org/10.2166/WCC.2022.001
Smotraiev, R., Nehrii, A., Koltsova, E., Anohina, A., Sorochkina, K., & Ratnaweera, H. (2022). Comparison of wastewater coagulation efficiency of pre-polymerised zirconium and traditional aluminium coagulants. Journal of Water Process Engineering, 47, 102827. https://doi.org/10.1016/J.JWPE.2022.102827
Wang, X., Wu, Y., Chen, N., Piao, H., Sun, D., Ratnaweera, H., Maletskyi, Z., & Bi, X. (2022). Characterization of Oxidation-Reduction Potential Variations in Biological Wastewater Treatment Processes: A Study from Mechanism to Application. Processes 2022, Vol. 10, Page 2607, 10(12), 2607. https://doi.org/10.3390/PR10122607
Wu, T., Su, B., Wu, H., Wang, S., Wang, G., Ratnaweera, H., Weerakoon, S. B., Zhang, Z., & Yao, B. (2022). Scenario optimization of water supplement and outflow management in Yilong Lake based on the EFDC model. Hydrology Research, 53(4), 519–531. https://doi.org/10.2166/nh.2022.113
Zhou, X., Zhang, Y., Li, Z., Sun, P., Hui, X., Fan, X., Bi, X., Yang, T., Huang, S., Cheng, L., & Ratnaweera, H. (2022). A novel two-stage anoxic/oxic-moving bed biofilm reactor process for biological nitrogen removal in a full-scale municipal WWTP: Performance and bacterial community analysis. Journal of Water Process Engineering, 50, 103224. https://doi.org/10.1016/J.JWPE.2022.103224
Cuprys, A., Maletskyi, Z., Rouissi, T., Ratnaweera, H., Brar, S. K., Knystautas, E., & Drogui, P. (2021). Insights into the simultaneous sorption of ciprofloxacin and heavy metals using functionalized biochar. Water (Switzerland), 13(19), 2768. https://doi.org/10.3390/W13192768
Jamil, S., Loganathan, P., Kandasamy, J., Ratnaweera, H., & Vigneswaran, S. (2021). Comparing nanofiltration membranes effectiveness for inorganic and organic compounds removal from a wastewater-reclamation plant’s micro-filtered water. Materials Today: Proceedings, 47, 1389–1393. https://doi.org/10.1016/J.MATPR.2021.02.618
Mojiri, A., Zhou, J. L., Ratnaweera, H., Ohashi, A., Ozaki, N., Aoi, Y., Vakili, M., & Kindaichi, T. (2021). Performance optimization of a chitosan/anammox reactor in nitrogen removal from synthetic wastewater. Journal of Environmental Chemical Engineering, 9(3), 105252. https://doi.org/10.1016/J.JECE.2021.105252
Mojiri, A., Zhou, J. L., Ratnaweera, H., Ohashi, A., Ozaki, N., Kindaichi, T., & Asakura, H. (2021). Treatment of landfill leachate with different techniques: an overview. Journal of Water Reuse and Desalination, 11(1), 66–96. https://doi.org/10.2166/WRD.2020.079
Nair, A. M., Haugen, F. A., & Ratnaweera, H. (2021). Economic Model Predictive Control for optimal struvite recovery. Journal of Environmental Management, 280, 111830. https://doi.org/10.1016/J.JENVMAN.2020.111830
Sola, K. J., Bjerkholt, J. T., Lindholm, O. G., & Ratnaweera, H. (2021). What Effect Does Rehabilitation of Wastewater Pipelines Have on the Share of Infiltration and Inflow Water (I/I-Water)? Water 2021, Vol. 13, Page 1934, 13(14), 1934. https://doi.org/10.3390/W13141934
Nair, A. M., Gonzalez-Silva, B. M., Haugen, F. A., Ratnaweera, H., & Østerhus, S. W. (2020). Real-time monitoring of enhanced biological phosphorus removal in a multistage EBPR-MBBR using a soft-sensor for phosphates. Journal of Water Process Engineering, 37, 101494. https://doi.org/10.1016/J.JWPE.2020.101494
Ratnaweera, H. (2020). Meeting Tomorrow’s Challenges in Particle Separation with Coagulation. ACS Symposium Series, 1348, 207–223. https://doi.org/10.1021/BK-2020-1348.CH007
Sola, K. J., Bjerkholt, J. T., Lindholm, O. G., & Ratnaweera, H. (2020). Analysing consequences of infiltration and inflow water (I/I-water) using cost-benefit analyses. Water Science and Technology, 82(7), 1312–1326. https://doi.org/10.2166/WST.2020.395
Kulesha, O., Maletskyi, Z., Kvaal, K., & Ratnaweera, H. (2019). Strategy for Flux Enhancement in Biofilm Ceramic Membrane Bioreactor Applying Prepolymerized and Non-Prepolymerized Inorganic Coagulants. Water 2019, Vol. 11, Page 446, 11(3), 446. https://doi.org/10.3390/W11030446
Kulesha, O., & Ratnaweera, H. (2019). Computational Thermodynamic Analysis of the Interaction between Coagulants and Monosaccharides as a Tool to Quantify the Fouling Potential Reduction in the Biofilm Membrane Bioreactor. Water 2019, Vol. 11, Page 1275, 11(6), 1275. https://doi.org/10.3390/W11061275
Liu, W., Ratnaweera, H., & Kvaal, K. (2019). Model-based measurement error detection of a coagulant dosage control system. International Journal of Environmental Science and Technology, 16(7), 3135–3144. https://doi.org/10.1007/S13762-018-1895-4
Maletskyi, Z., Zigta, D. K., Kulesha, O., & Ratnaweera, H. (2019). Chemical Enhancement for Retrofitting Moving Bed Biofilm and Integrated Fixed Film Activated Sludge Systems into Membrane Bioreactors. Membranes 2019, Vol. 9, Page 135, 9(10), 135. https://doi.org/10.3390/MEMBRANES9100135
Nair, A. M., Fanta, A., Haugen, F. A., & Ratnaweera, H. (2019). Implementing an Extended Kalman Filter for estimating nutrient composition in a sequential batch MBBR pilot plant. Water Science and Technology, 80(2), 317–328. https://doi.org/10.2166/WST.2019.272
Smoczynski, L., Kalinowski, S., Cretescu, I., Smoczynski, M., Ratnaweera, H., Trifescu, M., & Kosobucka, M. (2019). Study of Sludge Particles Formed during Coagulation of Synthetic and Municipal Wastewater for Increasing the Sludge Dewatering Efficiency. Water 2019, Vol. 11, Page 101, 11(1), 101. https://doi.org/10.3390/W11010101
Koronkiewicz, S., Trifescu, M., Smoczynski, L., Ratnaweera, H., & Kalinowski, S. (2018). A novel automatic flow method with direct-injection photometric detector for determination of dissolved reactive phosphorus in wastewater and freshwater samples. Environmental Monitoring and Assessment, 190(3), 1–12. https://doi.org/10.1007/S10661-018-6511-Z
Korshin, G. V., Sgroi, M., & Ratnaweera, H. (2018). Spectroscopic surrogates for real time monitoring of water quality in wastewater treatment and water reuse. Current Opinion in Environmental Science & Health, 2, 12–19. https://doi.org/10.1016/J.COESH.2017.11.003
Sola, K. J., Bjerkholt, J. T., Lindholm, O. G., & Ratnaweera, H. (2018). Infiltration and Inflow (I/I) to Wastewater Systems in Norway, Sweden, Denmark, and Finland. Water 2018, Vol. 10, Page 1696, 10(11), 1696. https://doi.org/10.3390/W10111696
Wang, X., Bi, X., Hem, L. J., & Ratnaweera, H. (2018). Microbial community composition of a multi-stage moving bed biofilm reactor and its interaction with kinetic model parameters estimation. Journal of Environmental Management, 218, 340–347. https://doi.org/10.1016/J.JENVMAN.2018.04.015
Wang, X., Bi, X., Liu, C., & Ratnaweera, H. (2018). Identifying critical components causing seasonal variation of activated sludge settleability and developing early warning tool. Water Science and Technology, 77(6), 1689–1697. https://doi.org/10.2166/WST.2018.053
Zhang, D., Hølland, E. S., Lindholm, G., & Ratnaweera, H. (2018). Hydraulic modeling and deep learning based flow forecasting for optimizing inter catchment wastewater transfer. Journal of Hydrology, 567, 792–802. https://doi.org/10.1016/J.JHYDROL.2017.11.029
Zhang, D., Martinez, N., Lindholm, G., & Ratnaweera, H. (2018). Manage Sewer In-Line Storage Control Using Hydraulic Model and Recurrent Neural Network. Water Resources Management, 32(6), 2079–2098. https://doi.org/10.1007/S11269-018-1919-3
Liu, W., & Ratnaweera, H. (2017). Feed-forward-based software sensor for outlet turbidity of coagulation process considering plug flow condition. International Journal of Environmental Science and Technology, 14(8), 1689–1696. https://doi.org/10.1007/S13762-017-1284-4
Manamperuma, L., Wei, L., & Ratnaweera, H. (2017). Multi-parameter based coagulant dosing control. Water Science and Technology, 75(9), 2157–2162. https://doi.org/10.2166/WST.2017.058
Sayid Mia, M. A., Nur-E-Alam, M., Huque, S., Rahman, M. M., & Ratnaweera, H. (2017). Biogas Production through Anaerobic Digestion of Tannery Solid Waste. Iranica Journal of Energy & Environment, 8(3), 210–215. https://www.ijee.net/article_64684.html
Sivchenko, N., Ratnaweera, H., & Kvaal, K. (2017). Approbation of the texture analysis imaging technique in the wastewater treatment plant. Cogent Engineering, 4(1), 1373416. https://doi.org/10.1080/23311916.2017.1373416
Smoczyński, L., Kalinowski, S., Ratnaweera, H., Kosobucka, M., Trifescu, M., & Pieczulis-Smoczyńska, K. (2017). Electrocoagulation of municipal wastewater - a pilot-scale test. Desalination and Water Treatment, 72, 162–168. https://doi.org/10.5004/DWT.2017.20654
Smoczynski, L., Kosobucka, M., Pieczulis-Smoczyński, K., Smoczyński, M., & Ratnaweera, H. (2017). Sizes of particles formed during municipal wastewater treatment. Water Science and Technology, 75(4), 971–977. https://doi.org/10.2166/WST.2016.546
Víctor-Ortega, M. D., & Ratnaweera, H. C. (2017). Double filtration as an effective system for removal of arsenate and arsenite from drinking water through reverse osmosis. Process Safety and Environmental Protection, 111, 399–408. https://doi.org/10.1016/J.PSEP.2017.08.001
Wang, X., Kvaal, K., & Ratnaweera, H. (2017). Characterization of influent wastewater with periodic variation and snow melting effect in cold climate area. Computers & Chemical Engineering, 106, 202–211. https://doi.org/10.1016/J.COMPCHEMENG.2017.06.009
Wang, X., Ratnaweera, H., Holm, J. A., & Olsbu, V. (2017). Statistical monitoring and dynamic simulation of a wastewater treatment plant: A combined approach to achieve model predictive control. Journal of Environmental Management, 193, 1–7. https://doi.org/10.1016/J.JENVMAN.2017.01.079
Kozminykh, P., Heistad, A., Ratnaweera, H. C., & Todt, D. (2016). Impact of organic polyelectrolytes on coagulation of source-separated black water. Environmental Technology, 37(14), 1723–1732. https://doi.org/10.1080/09593330.2015.1130175
Liu, W., & Ratnaweera, H. (2016). Improvement of multi-parameter-based feed-forward coagulant dosing control systems with feed-back functionalities. Water Science and Technology, 74(2), 491–499. https://doi.org/10.2166/WST.2016.180
Manamperuma, L. D., Ratnaweera, H. C., & Martsul, A. (2016). Mechanisms during suspended solids and phosphate concentration variations in wastewater coagulation process. Environmental Technology, 37(19), 2405–2413. https://doi.org/10.1080/09593330.2016.1150354
Manamperuma, L., Ratnaweera, H., Heistad, A., & Vasenko, L. (2016). Effect of degree of prepolymerisation of coagulant and ratio of phosphate-inorganic metal on coagulated sludge. International Journal of Environmental Technology and Management, 19(3–4), 278–287. https://doi.org/10.1504/IJETM.2016.082254
Sivchenko, N., Kvaal, K., & Ratnaweera, H. (2016). Evaluation of image texture recognition techniques in application to wastewater coagulation. Cogent Engineering, 3(1). https://doi.org/10.1080/23311916.2016.1206679
Smoczyński, L., Ratnaweera, H., Kosobucka, M., Smoczyński, M., Kalinowski, S., & Kvaal, K. (2016). Modelling the structure of sludge aggregates. Environmental Technology, 37(9), 1122–1132. https://doi.org/10.1080/09593330.2015.1102332
Manamperuma, L. D., Ratnaweera, H. C., Manamperuma, L. D., & Ratnaweera, H. C. (2015). Coagulation Mechanisms during the Substitution of Inorganic Salts with Cationic Polymers to Increase the Sludge Value. Journal of Water Resource and Protection, 7(17), 1495–1501. https://doi.org/10.4236/JWARP.2015.717123
Ratnaweera, H., & Fettig, J. (2015). State of the Art of Online Monitoring and Control of the Coagulation Process. Water 2015, Vol. 7, Pages 6574-6597, 7(11), 6574–6597. https://doi.org/10.3390/W7116574
Plósz, B. G., Liltved, H., & Ratnaweera, H. (2009). Climate change impacts on activated sludge wastewater treatment: a case study from Norway. Water Science and Technology, 60(2), 533–541. https://doi.org/10.2166/WST.2009.386
Ratnaweera, H., Lei, L., & Lindholm, O. (2002). Simulation program for wastewater coagulation. Water Science and Technology, 46(4–5), 27–33. https://doi.org/10.2166/WST.2002.0543
Ratnaweera, H., Hiller, N., & Bunse, U. (1999). Comparison of the coagulation behavior of different Norwegian aquatic NOM sources. Environment International, 25(2–3), 347–355. https://doi.org/10.1016/S0160-4120(98)00112-3
Selmer-Olsen, E., Ratnaweera, H. C., & Pehrson, R. (1996). A novel treatment process for dairy wastewater with chitosan produced from shrimp-shell waste. Water Science and Technology, 34(11), 33–40. https://doi.org/10.1016/S0273-1223(96)00818-9
Berge, D., Ratnaweera, H., & Efraimsen, H. (1994). Degradation of Recalcitrant Chlorinated Organics by Radiochemical and Biochemical Oxidation. Water Science and Technology, 29(5–6), 219–228. https://doi.org/10.2166/WST.1994.0716
Fettig, J., & Ratnaweera, H. (1993). Influence of Dissolved Organic Matter on Coagulation/Flocculation of Wastewater by Alum. Water Science and Technology, 27(11), 103–112. https://doi.org/10.2166/WST.1993.0269
Ratnaweera, H., Odegaard, H., & Fettig, J. (1992). Coagulation with Prepolymerized Aluminium Salts and their Influence on Particle and Phosphate Removal. Water Science and Technology, 26(5–6), 1229–1237. https://doi.org/10.2166/WST.1992.0565
Fettig, J., Ratnaweera, H. C., & Ødegaard, H. (1990). Simultaneous Phosphate Precipitation and Particle Destabilization Using Aluminium Coagulants of Different Basicity. Chemical Water and Wastewater Treatment, 221–242. https://doi.org/10.1007/978-3-642-76093-8_15
THT271/272, THT201, THT310, THT311, THT312/313, KJM220
2012- Professor, Norwegian Univ. of Life Sciences (NMBU), Ås (Norway)
2001-2011 Adjunct Professor, Norwegian Univ. of Life Sciences (NMBU), Ås (Norway)
2008- Founder/Chairman of the Board, DOSCON AS, Oslo, Norway, subsidiaries in China and Sri Lanka
1991-1998 1998-2011 Director of Innovation and International Projects (Researcher/Research Manager 1991-1998) Norwegian Institute for Water Research – NIVA, Oslo, Norway
2004-2012 NIVA-Tech (CEO), BallastTech (Chairman), Geomor-NIVA & NIVA Chile (Board member)
1998 Team leader, water and wastewater technology, COWI, Oslo, Norway
1990-1991 Research Scientist, SINTEF Water group, Trondheim, Norway
2022- Honorary Professor, Mining-Metallurgical Institute of Tajikistan, Buston, Tajikistan
2021- Honorary Professor National University of Water and Env. Engineering, Rivno, Ukraine
2018- Honorary Professor, Inst. of Scientific Sust. Dev. & Ecology "Keremet", Bishkek,Kyrgyzstan
2018 April Visiting Researcher, University of Technology Sydney, Australia
2018 Mar Visiting Researcher, National University of Technology, Singapore
2018 Aug Visiting Researcher, Hokkaido University, Japan
2018 Sep Visiting Researcher, University of British Columbia, Canada
2016- Honorary professor, Ukrainian State University of Chemical Technology, Ukraine
2013- Visiting professor, Qingdao University of Technology, Qingdao, China
2020-2021 Visiting professor, University of Indonesia
2004-Guest Professor, Inner Mongolia Agricultural University, Hohhot, P R China
2012- PI/Team leader, Process Analytics and Water Treatment Group, NMBU
2014-2018 Head of Research, Faculty of Science & Tech., Norwegian University of Life Sciences
2004-2011 One of the three top managers at the Norwegian Institute for Water Research - NIVA
2022- Director of the Board, International Water Association (IWA)
2012- Member, Norwegian National Committee of IWA
2011- Member, Management Committee - IWA Specialist Group “Particle Separation”
2023- Vice President, European Water Association (EWA),
2016- Member of the Management Council of EWA
2020- Norwegian representative in the Council of the European Water Association (EWA)
2020- Member of the Scientific Advisory Council, Aquateam, Norway
2020- Member, Advisory Group, EU ERA-NET Water JPI
2008-2012 Member, Steering Group, Nile Basin Research Program, University of Bergen
2004-2012 Member of the Norwegian National Commission of UNESCO
2006-2008 Chairman of the Scientific Committee, Norwegian National Commission of UNESCO
2013-2015 Chairman of the Norwegian Forum for Development and Technology (Bistandsforum)
2020- IWA Distingusihed Fellow – International Water Association
2023- People’s ambassador of the Shandong Province, China
2020- Qingdao International Scientific Cooperation Award, China
2012-2015- High-End Foreign Expert Fellowship, State Admin. of Foreign Experts Affairs, China
2012-2015- High-End Foreign Expert Fellowship, Shandong Government, China
2012-2017- High-End Foreign Expert, Fellowship from the Government of Qingdao, Chia
1988-1991-First foreign national to receive a university fellowship, Norwegian Uni. of Sci. & Tech.
2014-2018 Deputy Chairman, Norwegian Water Research Assoc.; Board member (2013-2016)
2004-2012 Member of the Norwegian National Commission of UNESCO
2006-2008 Chairman of the Scientific Committee, Norwegian National Commission of UNESCO
2023-2025 Task Coordinator at NMBU, SMART4ENV: Enhancing Scientific Capacity of TUBITAK in Smart Env. Technologies for Climate Change Challenges. EU Horizon Europe, €1.5 mill
2022-2025 Task Coordinator at NMBU, WaterLine: Transforming advanced water skilling through extended reality water emulative centres. EU Horizon Europe, €2,1 mill
2022-2025 Coordinator at NMBU, Smart WB: Capacity Building in the field of Higher Education: Strand. Partnerships for transformation in higher education. Erasmus+, €0,72 mill
2022-2024 Project Manager, MONLINE: Innovative water quality monitoring for on-line surveillance /process control. Innovation Norway & Jiangsu Science & Tech. Dept, China. €0.78 mill
2022-2024 Concept Developer, Hybrid Sensors -Drinking Water. Res Council of Norway (RCN). €0.66 mill
2021-2026 Project Manager, Protecting aquatic ecosystem and Human health from micropollutants, INTPART-RCN, €1.1 mill (NO, BR). PATCHER project
2021-2023 Project Manager, Digitalisation of water industry by innovative education, Erasmus+ Knowledge Alliances, 12 partners (NO, DE, BG, CY, TR, RO). €1.1 mill www.digiwater.org
2021-2023 Project Manager, DigiwatRO: Digitalisation of the water sector and water education in Romania and Norway. EEA Grants. €0.1 mill
2021-2023 Project Manager, Graduates for Climate Change adapted water management, 12 univ. from EU (NO, PL. DE), Asia (CN. LK, MN), Erasmus+ CBHE, €1 mill www.cc-water.net
2021-2023 Project Manager, Global mobility program, NMBU & UTS, Australia: Erasmus+ €0.02 mill
2021-2023 Project Manager, EU MSCA project on Development of Hybrid Soft Sensor for on-line monitoring of contaminants of emerging concern in water. ECO-SOS. €0.25 mill
2020-2028 Project Manager, BSc program, Qingdao Univ. of Technology, China. Collaboration between QUT-NMBU, Funded by Ministry of Education, China. >€1 mill
2020-2026 Scientific Coordinator, Water ESSENCE - creating synergy to meet the global challenges. NORAD, €1.7 mill, (NO, GH, KE, UG, ET, SSU, RW)
2019-2023 Project Manager, R&D in process control. Norwegian Tax Authority. €0.3 mill
2019-2021 Project Manager, Closing the Water Cycle Gap with Harmonised Actions, ERANET Water JPI (NO, SE, PL, RO, IL, NL, SG, AU, US, CN) €2 mill http://www.waterharmony.net/wjpi
2015-2023 Project Manager, International Partnership on membrane processes for Research & Educational excellence, INTPART-RCN, €1.1 mill, (US, CA, CN, JP, NO). MEMPREX-I/II.
2015-2019 Co-Project Manager, RECOVER: Resource recovery from WW. RCN. €2.4 mill
2015-2019 Project Manager, Holistic optimisation of sewers, treatment plant and recipients. RCN, € 0.4 mill
2014-2020 Scientific coordinator, Inst. Capacity Building in Water Mgmt & Climate Change Adaption, €3.1 mill, NOARD, 11 universities (NO, LK, BD, KR, UG, KE, ET, SS). www.wasoproject.org
2013-2015 International coordinator, UNECE- Protocol on Water and Health. Establishment of targets in Tajikistan, €0.15 mill (Independent consultant)
2013-2015 International coordinator, UNECE- Protocol on Water and Health. Establishment of targets in Kyrgyzstan, €0.15 mill (Independent consultant)
2011-2021 Project Manager, Water Harmony educational collaboration with 10 Eurasian universities, €1.1mill, HK-Dir-Norway. (NO, UA, BY, MD, KZ, KG, TJ) www.waterh.net
2009-2011 International coordinator, UNECE- Protocol on Water & Health. Est targets in Ukraine, €0.3 mill
2000-2001 Team Leader, Devel. of National WW Mgmtt Plan for Mongolia, World Bank €0.12 mill
1999-2000 Team Leader, Revision-National Env. Action Plan (NEAP) in Mongolia, World Bank. €0.12 mill