Vitenskapelige publikasjoner

Selected publications:

2014
Dieu, B.T, Inge Revhaug and Razak Seidu. (2014) iGeoTrans – A novel iOS application for GPS positioning in geosciences. Geocarto International (in press)

Tryland, I., Myrmel, M., Ostensvik, O., Wennberg A. and Robertson, L. (2014). Impact of rainfall on the hygienic quality of blue mussels and water in urban areas in the Inner Oslofjord, Norway. Accepted for publication in Marine Pollution Bulletin.

Rosado, R.C., Tryland, I., Myrmel, M., Aanes, K.J. and Robertson, L. (2014). Detection of microbial pathogens and indicators in sewage effluent and raw water during temporary interruption of a wastewater treatment plant. Accepted for publication in Water Quality, Exposure and Health.

Wenneberg, A., Tryland, I., Østensvik, Ø., Secic, I., Monshaugen, M. and Liltved L. (2013). Effect of water treatment on the growth potential of Vibrio cholerae and Vibrio parahaemolyticus in seawater. Marine Environmental Research. 83. 10-15.

Torgersen, G., Bjerkholt, J. and Lindholm, O. 2014. “Addressing Flooding and SuDS when Improving Drainage and Sewerage Systems—A Comparative Study of Selected Scandinavian Cities”. Water 2014, 6(4), 839-857; doi:10.3390/w6040839.

Sapci, Z. and Morken, J. 2014. The effect of algae species on biodiesel and biogas production observed by using a data model combines algae cultivation with an anaerobic digestion (ACAD) and a biodiesel process. Energy Conversion and Management,  79(0): p. 519-524

Eregno, F. E., V. Nilsen, R. Seidu and A. Heistad. 2014. Evaluating the Trend and Extreme values of Indicator Organisms in a Raw Water Source: A Potential Tool for Watershed Management and Optimizing Water Treatment Practice. Water Resources Management (Submitted).

Seidu, R., A. Abubakari, I. A. Dennis, T.-A. Stenstrom, A. Heistad, J. A. Larbi, R. C. Abaidoo. 2014. A probabilistic assessment of the contribution of wastewater-irrigated lettuce to E.coli O157:H7 infection risk and disease burden in Kumasi, Ghana. Journal of Water and Health (Submitted)

Smoczyński. L., Ratnaweera, H., Kosobucka, M., Smoczyński, M., 2014: Image analysis of sludge aggregates, Separation and Purification Technology, Volume 122,  412-420, ISSN 1383-5866

Razak Seidu, Amina Abubakari, Amoah Isaac Dennis, Arve Heistad, John A. Larbi, Thor Axel Stenstrøm and Robert C. Abaidoo (2014). A probabilistic assessment of the contribution of wastewater-irrigated lettuce to E.coli O157:H7 infection risk and disease burden in Kumasi, Ghana. Journal of Water and Health (Journal of Water & Health submitted).

Razak Seidu, Amina Abubakari, Amoah Isaac Dennis, Arve Heistad and Robert C. Abaidoo(2014). HelseRisiko- A Simulation program for assessing options for wastewater reuse (under development).

Razak Seidu (2014) Dose-response parameterization for Ascaris, Trichuris and hookworm in relation to wastewater use. Journal of Water and Health (Submitted)

Dieu Bui Tien, Trung Tran Chuyen,  Biswajeet Pradhan, Inge Revhaug and Razak Seidu (2014)  iGeoTrans – A novel iOS application for GPS positioning in geosciences. Geocarto International 2014 s. –

Sivchenko, N., Kvaal, K., & Ratnaweera, H. (2014). Image analysis of flocs and mathematical modelling applied to coagulation-flocculation process. IWA Specialist Conference “Advances in particle science and separation: from mm to nm scale and beyond”, June 15-18, Sapporo, Japan.

Smoczyński. L., Ratnaweera, H., Kosobucka, M., Smoczyński, M., 2014: Image analysis of sludge aggregates, Separation and Purification Technology, Volume 122, 412-420, ISSN 1383-5866

Lindholm, O. og Moen, S. E. 2014. «Rekruttering av sivilingeniører og ingeniører til VA- sektoren – Status og prognoser». VANN nr 1. 2014.

Torgersen, G., Bjerkholt, J. and Lindholm, O. 2014. “Addressing Flooding and SuDS when Improving Drainage and Sewerage Systems.  A Comparative Study of Selected Scandinavian Cities”. Water 2014, 6(4), 839-857; doi:10.3390/w6040839.

Nilsen, V., Wyller, J. (2014). QMRA for drinking water: 1. Revisiting the mathematical structure of single-hit dose-response models. Risk Analysis. Submitted.

Nilsen, V., Wyller, J. (2014). QMRA for drinking water: 2. The effect of pathogen clustering in single-hit dose-response models. Risk Analysis. Submitted.

Manamperuma L, Ratnaweera H, (2014) Coagulation mechanisms during the substitution of inorganic salts with cationic polymers to increase the sludge value. IWA Conference Advances in particle science and separation, Sapporo, Japan, 15-18 June 2014. (Accepted as full paper)

2013
Morken, J. & Sapci, Z. 2013. Evaluating biogas in Norway – bioenergy and greenhouse gas reduction potentials. Agricultural Engineering International: CIGR Journal Vol 15, No. 2: 148-160

Morken, J., Sapci, Z. and Strømme, J.E. 2013. Modelling of biodiesel production in algae cultivation with anaerobic digestion (ACAD). Energy Policy, 60: 98-105

Razak Seidu (2013) Norwegian drinking water supply systems and risk management: guidelines, directives and microbial risk assessment. Vann (4): 519-528

Razak Seidu , Ingrid Sjølander, Amina Abubakari, Amoah Dennis, John A. Larbi and Thor Axel Stenstrøm (2013) Modeling the die-off of E. coli and Ascaris in wastewater-irrigated vegetables: implications for microbial health risk reduction associated with irrigation cessation. Water Sci Technol. 68(5):1013-21

Razak Seidu, Thor Axel Stenström , Owe Löfman. (2013). A Comparative Cohort Study of the Effect of Rainfall and Temperature on Diarrhoeal Disease in Faecal sludge and Non-faecal sludge applying communities, Northern Ghana. Journal of Water and Climate Change 04(2):90-102

Razak Seidu, Owe Lofman, Pay Drechsel and Thor Axel Stenstrom. (2013). Risk Factor Analysis of Diarrhoeal Disease Incidence among faecal sludge farmers´households in Tamale, Ghana. Journal of Water, Sanitation and Hygiene for Development 03(2):134-143.

Nsa Dada, Nanthasane Vannavong, Razak Seidu, Audrey Lenhart, Thor Axel Stenstrøm, Theeraphap Chareonviriyaphap and Hans Overgaard (2013) Relationship between Aedes aegypti production and occurrence of Escherichia coli in domestic water storage containers in rural and sub-urban villages in Thailand and Laos. Acta Tropica 126.(3) s. 177-185.

Liu, W.,Ratnaweera, H., Heping, S.; 2003: Better treatment efficiencies and process economics with real-time coagulant dosing control. 11th IWA conference on Instrumentation Control and Automation; 2013-09-18 – 2013-09-20

WANG Xiaodong, BI Xuejun, CHU Zhengkun, et.al. (2013) Impact of Reaction Temperature on settleability of Activated Sludge [J]. China Water and Wastewater,2013,23(29): 128-131

Liu Hui, Li Xueqiang, Wang Xiaodong (2013). Study on controlling methods of filamentous bulking in winter at full-scale wastewater treatment plant [J]. China Water and wastewater, 2013,3:83-86

Manamperuma, L.; Ratnaweera, H., Rathnaweera, S.:; 2013: Retrofitting coagulant dosing control using real-time water quality measurements to reduce coagulant consumption. 11th IWA Conference on Instrumentation control and Automation; 2013-09-18 – 2013-09-20

Sivchenko, N. , Kvaal, K., Ratnaweera, H. ; 2013: Characterization of flocs in coagulation-flocculation process by image analysis and mathematical modelling. 13th Nordic Wastewater Conference; 2013-10-08 – 2013-10-10

Ratnaweera, H. 2013: Fosforgjenvinning fra avløpsvann – bør vi bygge om våre renseanlegg?., 2013, VANN, 04, 551-556

Ratnaweera, H. 2013: Role of innovation in water supply and sanitation, International conference on Latest international achievements in chemical industry and construction material production, Minsk, 22-23 Nov 2012

Lindholm, O., Buhler, L. og Bjerkholt, J. 2013. “Hva hvis monsterregnet fra 2. juli 2011 i  København falt i Norge”. VANN nr. 3, 2013.

Lindholm, O. og Haraldsen, S. 2013. “Miljøgifter i overvann fra tette flater, renseanlegg og overløp”. Case Indre Oslofjord”. VANN nr 2, 2013.

2012
Estevez M.M., Morken J. and Linjordet R. 2012. Effects of steam explosion and co-digestion in the methane production from Salix by mesophilic batch assays. Bioresource Technology 2012 ;V 104:749-756.

Hageskal, G., Tryland, I., Liltved, H. and Skaar, I. (2012). No simple solution to waterborne fungi: various responses to water disinfection methods. Water Science and Technology: Water Supply. 12. 220-226.

Fykse, E.M., Nilsen, T., Nielsen, A.D., Tryland, I., Delacroix, S. and Blatny, J.M. (2012). Real-time PCR and NASBA for rapid and sensitive detection of Vibrio cholerae in ballast water. Marine Pollution Bulletin. 64. 200-206.

Overgaard HJ, Alexander N, Matiz MI, Jaramillo JF, Olano VA, Vargas SL, Sarmiento DM, Lenhart A, Razak Seidu, and Stenström TA. (2012) Diarrhea and dengue control in rural primary schools in Colombia: study protocol for a randomized controlled trial. Trials 13:182.

Lindholm, O., Bjerkholt, J. og Lien, O. 2012. “Fremmedvann i Nordiske avløpslednings   nett”. VANN nr. 1, 2012.

Nilsen, V., Wyller, J. A., & Heistad, A. (2012). Efficient incorporation of microbial metabolic lag in subsurface transport modeling. Water Resources Research, 48(9), W09519.

Nie, L., Li, P., Nilsen, V., Hem, L., Sægrov, S. (2012). Modelling Climate Change and Urbanization Impacts on Urban Stormwater and Adaptation Capacity. In: Urban Drainage Modelling: extended abstracts of the Ninth International Conference on Urban Drainage Modelling, Belgrade, Sep 2012.

2011
Pay Drechsel and Razak Seidu. (2011). Cost-effectiveness of options or reducing health risks in areas where food crops are irrigated with treated or untreated wastewater. Water International. 36(4): 535-548.

Tryland, I., Robertson, L., Blankenberg, A.G.B., Lindholm, M., Rohrlack, T. and Liltved, H. (2011). Impact of rainfall on microbial contamination of surface water. International Journal of Climate Change Strategies and Management. Vol 3, No.4. 361-373.

Bomo, A.M., Tryland, I., Haande, S., Hagman, C.H.C. and Utkilen, H (2011). The impact of cyanobacteria on growth and death of opportunistic pathogenic bacteria. Water Science and Technology. 64. 384-390.

V. Nilsen, J. A. Lier, J. T. Bjerkholt and O. G. Lindholm. 2011. “Analysing urban floods and combined sewer overflows in a changing climate.” Journal of Water and Climate change. No. 02.4 2011. p 260 – p 271.

Lindholm O. 2011. “Regnvannsoverløp. Status, krav og dokumentasjon av utslipp”.   VANN nr. 1, 2011.

Lindholm, O. og Bjerkholt, J. 2011. “Store fremmedvannmengder i norske  avløpsanlegg”. VANN nr 1, 2011.

Lindholm, O. 2011. “Usikkerheter i flomberegninger i urbane områder”. VANN nr, 2, 2011.

Pay Drechsel and Razak Seidu. (2011). Cost-effectiveness of options or reducing health risks in areas where food crops are irrigated with treated or untreated wastewater. Water International. 36(4): 535-548.

Jenssen P.D., Todt D. (2011) Source separation technologies in western Europe. Smallwat11 II international conference

2010
Rudi, K., Hagen, I., Johnsrud, B.C, Skjefstad, G. and Tryland, I. (2010). Different lenght (DL) qPCR for quantification of cell killing by UV-induced DNA damage. International Journal of Environmental Research and Public Health. 7. 3376-3381.

Jenssen, P. D., T. Krogstad, A.M. Paruch, T. Mæhlum, K. Adam, C.A. Arias, A. Heistad, L. Jonsson, D. Hellström, H. Brix, M. Yli-Halla, L. Vråle, M. Valve. 2010. Filter bed systems treating domestic wastewater in the Nordic countries – performance and reuse of filter media. Ecol. Eng., vol.36 (12)  pp.1651-1659

Ben Keraita, Pay Drechsel, Razak Seidu, Pryanie Amerasinghe, Olufunke O. Cofie, and Konradsen, F. (2010). Harnessing Farmers’ knowledge and perceptions for Health Risk Reduction in Wastewater irrigated agriculture. In   Pay Drechsel et al. (2010) Wastewater irrigation and health : assessing and mitigating risk in low-income countries. Earthscan, UK.

Todt D., Jenssen P.D., Bulc T.G. (2010) Greenhouse wetland technology for blackwater treatment in high alpine locations. 12th IWA International Conference on Wetland Systems for Water Pollution Control. Venice, IWA.

Ratnaweera, H. (2010) Modelling and optimization of wastewater coagulation process. PhD thesis, 2010:05, UMB.

Nilsen, V., Lier, J. A., Bjerkholt, J. T., & Lindholm, O. G. (2011). Analysing urban floods and combined sewer overflows in a changing climate. Journal of Water and Climate Change, 2(4), 260-271.

Razak Seidu and Pay Drechsel. (2010). Cost-Effectiveness Analysis of Treatment and Non-Treatment  Interventions  for  Diarrhoea  Disease  Reduction  Associated  with Wastewater  Irrigation.  In   Pay Drechsel  et  al.  (2010) Wastewater  irrigation  and health : assessing and mitigating risk in low-income countries. Earthscan, UK.

Duncan Mara,  Andrew  J.  Hamilton, Andrew  Sleigh, Natalie  Karavarsamis  and  Razak  Seidu  (2010). Tools for Risk Analysis: Updating the 2006 WHO Guidelines. In   Pay Drechsel et  al.  (2010)  Wastewater  irrigation  and  health  :  assessing  and  mitigating  risk  in  low-income countries. Earthscan, UK.

2009
Nie, L., Lindholm, O., Lindholm, G., Syversen, E. 2009. ”Inmpact of climate change on urban drainage systems – A case study in Fredrikstad Norway”. Urban Water. Volume 6, Issue 4 August 2009 , pages 1 – 10.

Arve Heistad, Razak Seidu, Andreas S. Flø, Adam Paruch, Jon F. Hanssen and Thor- Axel Stenström. (2009). Long-term Hygienic Barrier Efficiency of a Compact On-site Wastewater Treatment System. Journal of Environmental Quality 38.(6) s. 2182-2188

Arve Heistad, Tyler Scott, Anders. M Skaarer, Razak Seidu, Jon F. Hanssen and Thor- Axel. Stenström (2009). Virus removal by unsaturated wastewater filtration: effects of biofilm accumulation and hydrophobicity. Water Science & Technology 60.(2) s. 399- 407

Plosz, B. G.; Liltved, H.; Ratnaweera, H., 2009: Climate change impacts on activated sludge wastewater treatment: a case study from Norway;  Water Sci & Tech.,  Vol 60, 533-541

Heistad, A., R. Seidu , A. Flø , A. M. Paruch , J. F. Hanssen and T. A. Stenström. 2009. Longterm hygienic barrier efficiency of a compact on-site wastewater treatment system. Journal of Environmental Quality. doi: 10.2134/jeq2008.0407; Published online 28 Sept. 2009

Heistad, A., S. Molin, R. Seidu, J.F. Hanssen and T. A. Stenström. 2009. Deposition parameter estimation by column filtration with Salmonella typhimurium phage 28 B as a viral indicator. Submitted to: Journal of Contaminant Hydrology

Plosz, B. G.; Liltved, H.; Ratnaweera, H., 2009: Climate change impacts on activated sludge wastewater treatment: a case study from Norway; Water Sci & Tech., Vol 60, 533-541.

Nilsen, V., Lier, J. A., Bjerkholt, J., Nie, L., Lindholm, O. (2009) Impact of Climate Change on Urban Flooding and Combined Sewer Overflows – Case from Oslo. In: Road Map Towards a Flood Resilient Urban Environment, Proceedings of COST C22, Paris, Nov. 2009

2008
Razak Seidu, Arve Heistad, Philip Amoah, Pay Drechsel, Petter D. Jenssen and Thor- Axel Stenström .(2008). Quantifying the Health Risk Associated with Wastewater Reuse in Accra, Ghana: A contribution toward local guidelines. Journal of Water & Health 6(4): 461-471 

Razak Seidu., Arve Heistad, Philip Amoah, Pay Drechsel, Petter D. Jenssen and Thor-Axel Stenström. (2008). Quantifying the Health Risk Associated with Wastewater Reuse in Accra, Ghana: A contribution toward local guidelines. Journal of Water and Health 6(4): 461-471.

Heistad, A., T. Scott, A. M. Skaarer, R. Seidu, J. F. Hanssen and T. A. Stenström. 2008. Virus removal by unsaturated wastewater filtration: effects of biofilm accumulation and hydrophobicity. Water Science & Technology—WST Vol 60 No 2 pp 399–407 © IWA Publishing 2009 doi:10.2166/wst.2009.343

Molin, S., A. Heistad, T.A. Stenström, V. Cvetkovic. 2008. Impact of two on-site sanitation solutions on human health risks associated with the aquifer pathway and exposure to pathogens from shallow water supply wells. Poster presentation at: “Coupling Sustainable Sanitation and Groundwater Protection”, Symposium to the International Year of Sanitation
(IYS) 2008, October 14 – 17, 2008, Hannover, Germany

2007
Seidu, R., A. Heistad, O. Lindholm, L. Vråle, P.D. Jenssen, T.A. Stenström. 2007. Integrating Quantitative Microbial Risk Assessment into Health Risk Management of Water Supply Systems in Norway. Vann nr.4, pp. 329-336.

Adam, K., Søvik, A. K., Krogstad, T. and Heistad, A. (2007). “Phosphorus removal by the filter materials light-weight aggregates and shellsand – A review of processes and experimental set-ups for improved design of filter systems for wastewater treatment.” Vatten, 63, 245-257

Razak Seidu., Arve Heistad, Lindholm Oddvar, Lasse Vråle, Petter D. Jenssen and Thor-Axel Stenström. (2007). Integrating Quantitative Microbial Risk Assessment in the management of Water Supply Systems in Norway. Vann, No 4 (2007): 329 – 336.

Razak Seidu and Pay Drechsel. (2010). Cost-Effectiveness Analysis of Treatment and Non-Treatment Interventions for Diarrhoea Disease Reduction Associated with Wastewater Irrigation. In   Pay Drechsel et al. (2010) Wastewater irrigation and health : assessing and mitigating risk in low-income countries. Earthscan, UK.

2006
Heistad, A., P.D. Jenssen and A.S. Frydenlund.2001.  A new combined distribution and pretreatment unit for wastewater soil infiltration systems. In: On-Site Wastewater Treatment, Proc. Ninth Natl. Symp. on Individual and Small Community Sewage Systems (11-14 March 2001, Fort Worth, Texas, USA), Pp. 200-206. ed. K. Mancl., St. Joseph, Mich. ASAE 701P0009

Heistad, A., A.M. Paruch,  L. Vråle, K. Adam and P.D. Jenssen. 2006.  A high-performance compact filter system treating domestic wastewater. Ecological Engineering,Volume: 28   Issue: 4   Pages: 374-379

Jenssen, P. D., Jonasson, S. A., and Heistad, A. (2006). “Natural systems for wastewater treatment – a knowledge compilation with emphasis on Norwegian results.” VA-Forsk rapport nr. 2006-20. Svenskt Vatten AB.

 

Duncan Mara, Andrew J. Hamilton, Andrew Sleigh, Natalie Karavarsamis and Razak Seidu (2010). Tools for Risk Analysis: Updating the 2006 WHO Guidelines. In   Pay Drechsel et al. (2010) Wastewater irrigation and health : assessing and mitigating risk in low-income countries. Earthscan, UK.

Ratnaweera, H. ; 2006:Ethical challenges in water related development aid. Vann. Norway

2005:
Ratnaweera, H.; 2005: Challenges and Opportunities in Implementation of the WFD in Norway, XXV International School of Hydraulics, Gdansk, Poland. Proceedings on CD-ROM

Ratnaweera, H.; 2005: Integrated water resources management and knowledge transfer, Abstracts of the OECD Workshop on International Scientific and Technological Co-operation for Sustainable Development, Johannesburg, South Africa

2004
Ratnaweera, H., Smoczyński, L., Lewandowski, A.;2004: Efficient coagulant dosing in wastewater treatment, Problems and Progress in Agricultural Sciences, Polish Academy of Sciences, Vol.505, 347-352 pp, ISSN 0084-5477

Ratnaweera, H.: Overview of coagulant dosing control. 2004: In: Chemical water and wastewater treatment VII, Hahn, H.H., Hoffman, E. and Ødegaard, H. (Eds.), Vo.l VII, IWA publishing, London, 3-13

Ratnaweera, H., Lei, L., Lindholm, H.2004: Simulation program for wastewater coagulation, In: Chemical water and wastewater treatment VII, Hahn, H.H., Hoffman, E. and Ødegaard, H. (Eds.), Springer-Verlag, Berlin, 253-260

Ratnaweera, H., Lei L., Lindholm, O. (2002): Simulation Program for Wastewater Coagulation. Water Sci 46 (4-5): 27-33 2002

2003
2003 Engan, Jon Arne; Lindholm, Oddvar; Tennøy, Aud; Eiken Hartveit, Hege; Bjerkholt, Jarle T.. “Flom i by – en helhetlig innfallsvinkel”. Vann 2003 ;Volum 38.(1) s. 73-88 NIBR NIVA UMB

2003 Lindholm, Oddvar; Engan, Jon Arne; Rapp, Øystein; Petersen-Øverleir, Asgeir; Markhus, Einar. Revurdering av beregningskriterier for avløpssystemer. Flom i kommunale avløpssystem. Oslo: Norsk Institutt for Vannforskning 2003 (ISBN 8257743178) 106 s. (L.nr. 4652-2003) NIVA UMB

2002
2002 Engan, Jon Arne; Lindholm, Oddvar; Tennøy, Aud; Eiken Hartveit, Hege; Bjerkholt, Jarle T..Flom i by. Forprosjektstudie og forslag til hovedprosjekt. : 2002 49 s. NIBR NIVA UMB

2002 Rapp, Øystein; Markhus, Einar; Petersen-Øverleir, Asgeir; Lindholm, Oddvar; Engan, Jon Arne. Evaluation of design criterias for storm water and combined sewer systems, flooding of storm water and combined sewer systems. Nordic Hydrological Conference; 2002-08-04 – 2002-08-07 NIVA UMB

2001

2000
Heistad, Arve, P.D.Jenssen and A. S. Frydenlund. (2000). A New Combine Distribution and Pretreatment Unit for Wastewater Soil Infiltration Systems.In: On-Site Wastewater Treatment, Proc. Ninth Natl. Symp. on

1999
Ratnaweera. H., Gjessing, E., Oug, E.; 1999: Influence of physical-chemical characteristics of natural organic matter (NOM) on coagulation properties: An analysis of eight Norwegian water sources. Wat Sci Etch., vol 40, no 9, p 89-95

Ratnaweera, H., Hiller, N., Bunse, E.; 1999: Comparison of the coagulation behavior of different Norwegian   aquatic NOM sources. Env International, vol 25, no 2/3, p 347-355

Staudenmann J., Todt D., Junge-Berberovic R. (1999) Wastewater-fed Aquaculture in Temperate Climates: Optimizing the Recycling Rates via Primary Production 4th International Conference on Ecological Engineering for Wastewater Treatment – Managing the Wastewater Resource. Ås.

1998
Egeberg, P.K., Gjessing, E., Ratnaweera, H., Moghissi, A.; 1998: Natural Organic Matter, Env International, vol 25, no 2/3, p 143-144

Reviewed book chapters
2012

Lindholm, O. 2012. Kapittel 3 “VA-hydraulikk” i Læreboka «Vann- og av løpsteknikk». Utgave nr. 1. Red. H. Ødegaard. Forlag Norsk Vann.

Lindholm, O. 2012. Kapittel 8 “Vannbehov og vannforbruk” i Læreboka «Vann- og av løpsteknikk». Utgave nr. 1. Red. H. Ødegaard. Forlag Norsk Vann

Lindholm, O. 2012. Kapittel 10 “Distribusjon av forsyningsvann” i Læreboka «Vann- og av løpsteknikk». Utgave nr. 1. Red. H. Ødegaard. Forlag Norsk Vann

Lindholm, O. 2012. Kapittel 15 “Overvann” i Læreboka «Vann- og av løpsteknikk». Utgave nr. 1. Red. H. Ødegaard. Forlag Norsk Vann

Heistad, A. 2012. Desentrale VA-anlegg og VA i spredt bebyggelse. Textbook chapt.20 in: Ødegaard (ed.): Vann og Avløpsteknikk (in Norwegian), ISBN 978-82-414-0336-1.

2011
Tryland, I., Bomo, A.B. and Liltved, H. (2011). Impacts of climate changes on surface water quality in relation to drinking water treatment in Norway. In: “Municipalities addressing climate change: A case study of Norway”. Editor: I. Kelman. Nova publishers. ISBN: 978-1-61324-810-2.

Lindholm, O. and Bjerkholt, J. 2010. “Contribution to chapter 8. “Major and minor flows”. In: C. Zevenbergen, A. Cashman, N. Evelpidou, E. Pasche, S. Garvin and R. Ashley, Urban Flood Management, CRC Press/Balkema – Taylor & Francis Group, London, 2011. ISBN: 9780415559447.

Thor Axel Stenström, Razak Seidu, Nelson Ekane and Christian Zurbrugg .(2011). Microbial Exposure and Health Assessments in Sanitation Systems. Eawag/Sandec/SEI

Razak Seidu and Pay Drechsel. (2010). Cost-Effectiveness Analysis of Treatment and Non-Treatment Interventions for Diarrhoea Disease Reduction Associated with Wastewater Irrigation. In Pay Drechsel et al. (2010) Wastewater irrigation and health : assessing and mitigating risk in low-income countries. Earthscan, UK

2010
Duncan Mara, Andrew J. Hamilton, Andrew Sleigh, Natalie Karavarsamis and Razak Seidu (2010). Tools for Risk Analysis: Updating the 2006 WHO Guidelines. In Pay Drechsel et al. (2010) Wastewater irrigation and health : assessing and mitigating risk in low-income countries. Earthscan, UK

Ben Keraita, Pay Drechsel, Razak Seidu, Pryanie Amerasinghe, Olufunke O. Cofie, and Konradsen, F. (2010). Harnessing Farmers’ knowledge and perceptions for Health Risk Reduction in Wastewater irrigated agriculture. In Pay Drechsel et al. (2010) Wastewater irrigation and health : assessing and mitigating risk in low-income countries. Earthscan, UK.

Proceedings peer-reviewed journals
2014

Susan Pettersson, Arve Heistad, Razak Seidu, Vegard Nilsen, Ricardo C. Grøndal (2014) QMRA for water safety management: two Nordic norovirus case-studies from the EU- VISK project.Water and Health: Where Science Meets Policy. North Carolina, U.S.A. Oct. 25-26 2014

Smoczyński L., Ratnaweera H., Kosobucka M., Kvaal K. Image Analysis of Sludge Aggregates Obtained at Preliminary Treatment of Sewage. IWA Particle separation conference, Sapporo, 16-18 June 2014

Zhang, D. and Ratnaweera, H. Optimising particle separation with CFD. IWA Particle separation conference, Sapporo, 16-18 June 2014

Manamperuma, L., Ratnaweera, H. Coagulation mechanisms during the substitution of inorganic salts with cationic polymers to increase the sludge value, IWA Particle separation conference, Sapporo, 16-18 June 2014

Sivchenko, N, Kvaal, K., Ratnaweera, H. Image analysis of flocs and mathematical modelling applied to coagulation-flocculation process, IWA Particle separation conference, Sapporo, 16-18 June 2014

2013
Razak Seidu and Gaffar Adam (2013). Integrating Sanitation Safety Planning (SSP) into the management of health risks associated with wastewater irrigation in urban Ghana. 9th International Conference on Wastewater Reuse. 27-31 October Windhoek, Namibia

Razak Seidu and Amina Abubakari (2013). Quantifying the health risk associated with E.coli O157:H7 in wastewater irrigated vegetables in the Kumasi Metropolitan Area (KMA). 9th International Conference on Wastewater Reuse 27-31 October Windhoek, Namibia

Moghadam, K. B., Kapelan, Z., Venkatesh, G., Brattebø, H., Sægrov, S., Rozos, E., Makropoulos, C., Ugarelli, R., Milina, J. and Hem, L. “Urban water system metabolism assessment using WaterMet2 model” , 12th International Conference on Computing and Control for the Water Industry, CCWI2013 , Italy , 02 September2013 _ 04 September 2013

Geir Torgersen, Jarle T. Bjerkholt, Oddvar G. Lindholm. 2013. ” Prioritization of flood prevention measures in waste water systems in Norwegian cities”. Nordic Wastewater Conference, October 8-10, 2013 in Malmö, Sweden

Morken, J. & Sapci, Z. 2013. Importance of Manure Management. Procedia – Social and Behavioural Sciences, Vol. 1: 753-758

Manamperuma, L.; Ratnaweera, H., Rathnaweera, S.:; 2013: Retrofitting coagulant dosing control using real-time water quality measurements to reduce coagulant consumption. 11th IWA Conference on Instrumentation control and Automation; 2013-09-18 – 2013-09-20

Sivchenko, N. , Kvaal, K., Ratnaweera, H. ; 2013: Characterization of flocs in coagulation-flocculation process by image analysis and mathematical modelling. 13th Nordic Wastewater Conference; 2013-10-08 – 2013-10-10

Ratnaweera, H. 2013: Role of innovation in water supply and sanitation, International conference on Latest international achievements in chemical industry and construction material production, Minsk, 22-23 Nov 2012

Wei, L., Ratnaweera, H., Heping, S. 2013: Better treatment efficiencies and process economics with real-time coagulant dosing control; Proceedings of the Instrumentation, Control and Automation ICA 2013 Conference, Narbonne,France, 18-20 September 2013

2012
Tryland, I., Tjomsland, T., Berge, D., Kempa, M. and Kolluru, V.S. (2012). Modelling the transport of fecal microorganisms in Norwegian drinking water sources (lakes). Environmental Science and Technology, 2012 Volume 1, pp 109-115. George Sorial and

Jihua Hong, Eds. American Science press, Houston, USA. ISBN: 9780976885351.

Tryland, I., Wenneberg, A.C. and Liltved (2012): Chlorine dioxide as a hygienic barrier. Proceedings from Nordisk drikkevannskonferanse 18-20 juni 2012. pp. 62-66. Stockholm, Sweden.

Hem, L. J., Lund, V, Anderson-Glenna, M. and Skaar, I. (2012): The effect of water treatment with NOM removal and UV-disinfection on the microbial communities in the distribution system. Proceedings, IWA world congress on water, climate and energy, Dublin, May 13-18

Nie, Linmei; Li, Pingju; Nilsen, Vegard; Hem, Lars John; Sægrov, Sveinung. (2012) Modelling Climate Change and Urbanization Impacts on Urban Stormwater and Adaptation Capacity. Urban Drainage Modelling : extended abstracts of the Ninth International Conference on Urban Drainage Modelling, Belgrade, 4-6 September 2012

Sapci, Z., Linjordet, R, and Morken, J. 2012. Effect of thermal pre-treated agricultural residual on biogas production. Paper no. P0885, EurAgEng Conference in Valencia, Spain, 6 pp

2011
Estevez, M.M,., Linjordet, R., and Morken, J. 2011. Biogas optimization by steam explosion of Salix, and recycling of process water from biogas production of Salix and manure. International IWA-Symposium on Anaerobic Digestion of Solid Waste and Energy Crops. 8 pp

L. Nie, O. G. Lindholm, S. O. Åstebøl, S. Sægrov and S. Thorolfsson. 2011. Integrated Urban Stormwater Management in Norway – Best Management Practices (BMPs) in cold climate”. 12nd International Conference on Urban Drainage, Porto Alegre. Brazil, 10-15 September 2011

2010
Razak Seidu, Owe Löfman, Pay Drechsel, Arve Heistad, Hans J Overgaard and Thor Axel Stenström (2010) Risk Factor Analysis of Diarrhoeal Disease in Sludge Applying Households in Northern Ghana. Water and Health: Where Science Meets Policy. North Carolina, U.S.A. Oct. 25- 26 2010

Liltved H., Tobiessen A., Delacroix S., Heiaas H. and Tryland I. (2010). Filtration and UV-irradiation for ballast water management – dose requirements and water quality challenges. Proceedings 5th International Conference & Exhibition Ballast Water Management ICBWM 2010, Singapore 1-4 Nov 2010, 9 p.

Tryland, I., Fykse, E-M., Bomo, A.M., Jantsch, T.G., Nielsen, A.D. and Liltved, H. (2010). Monitoring of bacteria in ballast water. In: Proceedings of the IMO-WMU Research and Development Forum 26-29 January 2010, Malmø, Sweden. p. 219-230.

Østerhus, S. W. og Hem, L. J. (2010): Water quality changes in the drinking water network – modeling and monitoring. 7th Nordic Drinkingwater Conference, Copenhagen

Nie , L.M., Lindholm, O. and Bjerkholt, J. T. 2009. “Long time effects of flooding and sewer surcharge in a changing climate.” Conference on “Road Map Towards a Flood Resilient Urban Environment” Paris 26th and 27th of November 200

2009
Morken, J., Brieid, T. and Ayoub, S. 2009. Potential and Models for Reducing Greenhouse Gases and Ammonia from Manure. Proceeding, AquAgris, Vienna, workshop in EU-financed program “Environmental management reform for sustainable farming, fisheries and aquaculture”

Razak Seidu, Arve Heistad, Pay Drechsel and Thor Axel Stenstrom. (2009) Quantifying the health risk associated with exposure to faecal sludge from on-site sanitation technologies. International Water Congress, 11-15 Nov, New Mexico, Mexico

Nilsen, V., Lier, A. J., Bjerkholt, J, Nie, L. and Lindholm, O. 2009. “Impact of climate change on urban flooding and combined sewer overflows – case from Oslo”. Conference on “Road Map Towards a Flood Resilient Urban Environment” Paris 26th and 27th of November 2009

2008
Razak Seidu and Pryanie Amerasinghe (2008). Developing tools to analyze health and environmental impacts associated with wastewater irrigation in low income countries. International Expert Consultation on Wastewater Irrigation in low inicome countries WHO/IWMI/. 6-9 October, 2008, Accra Ghana

Razak Seidu (2008). Quantitative Microbial Risk Assessment of Wastewater and Faecal Sludge Reuse in Ghana. WEDC International Conference, 7-11 April 2008, Accra Ghana

Review articles
2014  

Lindholm, O. og Moen, S. E. 2014. «Rekruttering av sivilingeniører og ingeniører til VA-sektoren – Status og prognoser». VANN nr 1. 2014

2013  
Razak Seidu , Ingrid Sjølander, Amina Abubakari, Amoah Dennis and John A. Larbi (2013) Modelling the die-off of E.coli and Ascaris in wastewater irrigated vegetables: implications for microbial health risk reduction associated with irrigation cessation. Water Science & Technology 68(5): 1013-1021

Razak Seidu (2013) Norwegian drinking water supply systems and risk management: guidelines,directives and microbial risk assessment. Vann (4): 519-528

Razak Seidu, Thor Axel Stenström , Owe Löfman. (2013). A Comparative Cohort Study of the Effect of Rainfall and Temperature on Diarrhoeal Disease in Faecal sludge and Non-faecal sludge applying communities, Northern Ghana. Journal of Water &Climate Change 04(2):90-102

Bouchalová, M., Wennberg A. and Tryland, I. (2013). Impact of rainfall on bathing water quality – a case study of Fiskevollbukta, Inner Oslofjord, Norway. VANN, Nr. 4. 491-498.

Lindholm, O., Buhler, L. og Bjerkholt, J. 2013. ”Hva hvis monsterregnet fra 2. juli 2011 i København falt i Norge”. VANN nr. 3, 2013

Lindholm, O. og Haraldsen, S. 2013. ”Miljøgifter i overvann fra tette flater, renseanlegg og overløp”. Case Indre Oslofjord”. VANN nr 2, 2013

Hem, L. J., Wennberg, A. C., Thorvaldsen, G. og Skaar, I. (2013): Biofilmdannelse i VAVs ledningsnett med nye Oset vannbehandlingsanlegg. Vann, 48:2:230-238

2012  
Tryland, I., Braathen, H., Beschorner, A-L., and Muthanna, T. (2012). Vurdering av metoder for overvåkning av hygienisk badevannskvalitet. VANN. Nr.2. 194-206.

Blankenberg, A.G.B., Tryland, I., Paruch, A. and Robertson, L. (2012). Virkningen av økt nedbør, en følge av klimaendring, på avrenning av tarmbakterier og parasitter fra beiteområder. VANN. Nr 1. 28-38.

Lindholm, O., Bjerkholt, J. og Lien, O. 2012. ”Fremmedvann i Nordiske avløpsledningsnett”. VANN nr. 1, 2012

2011
Lindholm O. 2011. ”Regnvannsoverløp. Status, krav og dokumentasjon av utslipp”. VANN nr. 1, 2011

Lindholm, O. og Bjerkholt, J. 2011. ”Store fremmedvannmengder i norske avløpsanlegg”. VANN nr 1, 2011

Lindholm, O. 2011. ”Usikkerheter i flomberegninger i urbane områder”. VANN nr, 2, 2011

Lars J. Hem, Irina Lucaciu, Liliana Cruceru, Bjørnar Eikebrokk and Gøril Thorvaldsen (2011): Monitoring quality of water intended for human consumption in Romania; Determination of NOM fractions and BDOC. Vatten 1-11, 47-54

Tryland, I., Tjomsland, T. and Østensvik, Ø. (2010). Matematiske strømnings- og spredningsmodeller – nyttig simuleringsverktøy ved vurdering av drikkevannskilders sårbarhet for mikrobiell forurensning. VANN. Nr. 1. s 5-16.

Løvik, J. E., Gillund O., and Tryland, I. (2010). Lekkasje på hovedavløpsledning utenfor Hamar våren 2009 – konsekvenser for vannkvaliteten i Mjøsa. VANN. Nr. 1. s 17-27.

2010  Hans-Henry Hammeren Holstad, Oddvar Lindholm og Jarle Bjerkholt. 2010. ” Fornyelse av vannledningsnettet – Variasjoner og trender” VANN nr 4, 2010

Bjerkholt, J. og Lindholm, O. 2010. ”Hva blir konsekvensene av klimaendringene for dagens avløpssystem?” VANN nr. 2, 2010

Hem, L. J. og Østerhus, S. W. (2010): Vannkvalitetsendringer i distribusjons-systemet for drikkevann – hvilke end-ringer kan skje og hvilke muligheter har vi for å overvåke disse? VANN, 45:1:28-40

Tjomsland, T., Tryland, I., Bakken, S., Bjørge, F. og Glommen, G. (2009). Sårbarhetsanalyse av vannverksinntakene i Mjøsa ved bruk av matematiske strøm- og vannkvalitetsmodeller. VANN. Nr 1. s 22-28.

Nie, L. , Lindholm, O. and Braskerud, B. 2009. ” Urban flood management in a changing climate”. VANN nr. 2, 2009

Razak Seidu, Arve Heistad, Lindholm Oddvar, Lasse Vråle, Petter D. Jenssen and Thor- Axel Stenström. (2007). Integrating Quantitative Microbial Risk Assessment in the management of Water Supply Systems in Norway. Vann, No 4 (2007): 329 – 336.

Published Reports:
Susan Petterson, Ekaterina Sokolova, Ricardo Rosado, Tor Håkonsen, Jakob Ottoson, Vegard Nilson, Thor Axel Stenstrøm, Arve Heistad and Razak Seidu. (2013). Quantitative Microbial Risk Assessment for Evaluation and Management of Drinking Systems. VISK Case Study Report. Oslo.

Razak Seidu, Lars Onsager Stordal and Graham Alabaster .(2011). Development of an integrated monitoring framework for assessing access to water and sanitation in the Lake Victoria Region. UN-Habitat, Nairobi.

Razak Seidu, Lars Onsager Stordal and Daniel Adom .(2011). Water for African Cities: Performance Evaluation . UN-Habitat, Nairobi.

Razak Seidu, Lars Onsarger Stodal and Graham Alabaster. (2012). Monitoring indicators for water and sanitation with evidence from small urban centres in the Lake Victoria Region of East Africa, UN-Habitat, Nairobi.

Evans Alexander, Razak Seidu, Ben Keraita and Pay Drechsel. (2009). Urban agriculture and wastewater management. Report submitted to the World Bank, IWMI, Colombo, Sri-Lanka.

Pay Drechsel, Razak Seidu, Ashley Murray, Kelly Bidwell, Robert Fuller, Maria Lovelace-Johnson and Tetteh Ogum. (2009). Wastewater Reuse and Public Health-From Research to Impact – Report submitted to Google.org.

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