Faculty of Agriculture

University of Peradeniya

Dr. A.K. Karunarathna

Senior Lecturer



Official Address :

Department of Agricultural Engineering,
Faculty of Agriculture,
University of Peradeniya,
Peradeniya,
Sri Lanka


Email :

akk@pdn.ac.lk
anujica@yahoo.com


Telephone :

+94 81 239 5475


Personal Website :






  • Ph.D. in Environmental Engineering, Saitama Uni., JAPAN (2010)
  • M.Eng. in Environmental Engineering, Saitama Uni., JAPAN (2006)
  • B.Sc. (Sp). Hons. in Agriculture, University of Peradeniya, SRI LANKA (2002)
  • Japanese Government (Monbukagakusho) Scholarship for Ph. D., Saitama University, JAPAN. (2007-2010)
  • Asian Development Bank/Japanese Government (ADB/JSP) Scholarship for M. Eng., Saitama University, JAPAN. (2004-2006)
  • Diploma- "1st International Conference and Exploratory Workshop on Soil Architecture and Physico-chemical Functions" Aarhus University, DENMARK (Nov. 30 - Dec. 2, 2010)
  • Diploma - "Merging Measurements and Modeling in Soil Physics", Aarhus University, DENMARK (March 16-22, 2009)
  • Certificate of Excellence - In recognition for the distinguished presentation during the 10th International Summer Symposium of Japan Society of Civil Engineers held on September 18, 2008 in Tokyo, JAPAN
  • Certificate- "Numerical modeling - HYDRUS Short Course" , University of Tokyo, JAPAN (June 26-27, 2008)
  • Member (Acc. No: 11247523; 2009 - to date), American Geophysical Union (AGU)
  • Student Member (2007 - to date), Japan Geophysical Union (JPGU)
  • Student Member (2007 - 2010), Soil Science Society of America (SSSA)
  • Member, Agricultural Engineering Society of Sri Lanka
  • Senior Lecturer: Department of Agricultural Engineering, University of Peradeniya (January 2012 - to date)
  • Postdoctoral Fellow: Institute for Environmental Science and Technology (IEST), Saitama University, JAPAN (October 2010 - April 2011)
  • Graduate Teaching Assistant in Environmental Conservation, Soil Physics and Environmental Soil Science: Graduate School of Science and Engineering, Saitama University, JAPAN (October 2007- October 2010)
  • Research Associate: AIT-SIDA research project, Solid Waste Management Research Unit, University of Peradeniya (May 2006- September 2007)
  • Waste Management Expert : Japan International Cooperation Agency (JICA), Colombo, SRI LANKA (June 2002- January 2004)
Consultancies
  • Consultant to National Solid Waste Management Support Center (NSWMSC), Ministry of Local Government and Provincial Councils, Colombo, Sri Lanka (June-September 2011).
  • Consultant to CLEANTECH Pvt. Ltd (Abans group of companies), 141, Kirula Road, Colombo, Sri Lanka (June 2006- September 2007)
  • Waste management: 3Rs, treatment, resources recovery, waste-to-energy, and sustainable land disposal systems
  • Decentralize & natural systems for wastewater treatment and reuse
  • Environmental assessment and remediation of contaminated land & water
  • Unsaturated zone hydrology, TDR technique for soil moisture determination, fate and transport of contaminants in the environment (soil/water/air), soil-gas transport
Books and Technical Reports
  • Karunarathna, A.K.; Samaraweera, N; and Ariyadasa. (2011) Excellence in Municipal Solid Waste Management Awards Program - 2010 (Pivithuru Purawara), National Solid Waste Management Support Center (NSWMSC), Ministry of Local Government and Provincial Councils, Colombo, Sri Lanka.
  • Karunarathna, A. K. (2010) Cost and Sustainability of Constructed Wetlands. In N. Tanaka., W. J. Ng., and K. B. S. N. Jinadasa (Eds.). Wetlands for Tropical Applications: Wastewater Treatment by Constructed Wetlands. Imperial Collage Press, London. ISBN 978-1-84816-297-6/1-84816-297-9.
  • Co-Author; Environmental Impact Assessment (EIA) Report for Proposed Municipal Solid Waste Landfill, Kaduwela, Sri Lanka (2007) Central Environmental Authority, 104, Denzil Kobbekaduwa Mawatha, Battaramulla, Sri Lanka.
  • Co-Author; Project Feasibility Report Proposed Municipal Solid Waste Landfill, Kaduwela, (2007) CLEANTECH Pvt. Ltd, 141, Kirula Road, Colombo, Sri Lanka.
  • Co-Author; Initial Environmental Impact Assessment (IEA) Report for Solid Waste and Wastewater Treatment Facility, Moonplains Landfill, Nuwaraeliya, Sri Lanka (2003) Central Environmental Authority, 104, Denzil Kobbekaduwa Mawatha, Battaramulla, Sri Lanka.
Peer Reviewed Journals
  • Karunarathna, A.K., Kawamoto, K., Moldrup, P., de Jonge, L.W., and Komatsu, T. (2010). Descriptive-predictive model for soil-water repellency and contact angle as a function of water content. Soil Science 175(10):461-468. 2):121-128.
  • Karunarathna, A.K., Kawamoto, K., Moldrup, P., de Jonge, L.W., and Komatsu, T. (2010). Two-region model for soil-water repellency as a function of matric potential and water content, Vadose Zone J. 9:719-730.
  • Tanaka, N., Karunarathna, A.K., and Jinadasa, K.B.S.N., (2007) Effect of coconut coir-pith supplement on nitrogen and phosphate removal in subsurface flow wetland microcosms. Chemistry and Ecology. 24(1):15-22.
  • Karunarathna, A.K., Tanaka, N., and Jinadasa, K.B.S.N., (2006) Effect of external organic matter on nutrient removal and growth of Phragmites australis in a lab scale subsurface flow treatment wetland. Water Science & Technology. 55(1-2):121-128.
  • Basnayake, B.F.A., and Karunarathna, A.K., (2004) A comparative study of windrow and static pile MSW composting methods in Sri Lanka. Journal of Agricultural Engineering Society of Sri Lanka (AESSL), 8:9-23.
Scientific Communications (Peer Reviewed Proceedings and Abstracts)
  • Karunarathna, A.K., Kawamoto, K., Moldrup, P., de Jonge, L.W., and Komatsu, T. (2010) Predictive-descriptive models for soil-water repellency as a function of water and organic carbon contents, 1st International Conference and Exploratory Workshop on Soil Architecture and Physico-Chemical Functions, Nov. 30- Dec. 02, 2010, Research Center Forum, Aarhus University, Denmark.
  • Karunarathna A.K., Chhoden T., Kawamoto K., Komatsu T., Moldrup P., de Jonge L.W. (2010) Estimating hysteretic soil-water retention curves in hydrophobic soil by a mini tensiometer-TDR coil probe, 19th World Congress of Soil Science, 1-6 August, Brisbane, Australia.
  • Karunarathna A.K., Chhoden T., Kawamoto K., Moldrup P., Komatsu T. (2010) A mini tensiometer-TDR coil probe for measurement of hysteretic soil-water retention curves in water repellent volcanic ash soil. pp. 6-12. In I. Kaihotsu (ed.) Proc. Soil Moisture Workshop 2010, Tokyo. 13-14 March. Editorial Committee of Soil Moisture Workshop 2010, Hiroshima, Japan.
  • Subedi S., Kawamoto K., Karunarathna A.K., Jayarathna L., Vithanage M. and Komatsu T. (2010) Assesment of water repellency of model sands moxed with Oleic acid. Proceeding of The Twelfth International Summer Symposium of Japan Society of Civil Engineers, Tokyo, Japan, September 18. pp. 203-206.
  • Karunarathna A.K., Chhoden T., Kawamoto K., Moldrup P., Komatsu T. (2010). A mini tensiometer-TDR coil probe for measurement of hysteretic soil-water retention curves in water repellent volcanic ash soil, Soil Moisture Workshop 2010, March 13-14, Campus Innovation Center, University of Tokyo, Tokyo.
  • Karunarathna A.K., Kawamoto K., Komatsu T. (2010) Determining wetting soil-water characteristic curves for volcanic ash soil as affected by water repellency. Japan Geosciences Union Meetings 2010, May 23-28, Chiba, Japan.
  • Chhoden T., Karunarathna A.K., Kawamoto K., Komatsu T. (2009) Water repellency effects on water retention in heat pre-treated volcanic ash soil. American Geophysical Union Fall Meeting 2009, December 14-17, San Francisco, CA, USA.
  • Karunarathna, A.K., Kawamoto, K., Moldrup, P., Komatsu, T. (2009) A Predictive Model based on Soil Organic Carbon Content for Water Content Dependant Soil Water Repellency, Japan Geosciences Union Meetings 2009, May 5-21, Chiba, Japan. (Abstract No. 018919)
  • Jayakody K.P. K., Jayakody L.N., Karunarathna A.K., and Basnayake B.F.A. (2008) Municipal solid waste management system and solid waste characterization at Hikkaduwa Secretariat, Galle, Sri Lanka. The Fifth Asian-Pacific Landfill Symposium. October 22-24, Sapporo, Hokkaido, Japan. (Abstract No 3A-1).
  • Karunarathna, A.K., Kawamoto, K., Moldrup, P., Komatsu, T., de Jonge, L.W. (2008) Development of a predictive expression for soil water repellency based on soil organic carbon content, 2008 Joint Annual Meeting; Soil Science Society of America, American Society of Agronomy, Crop Science Society of America. October 5-9, Houston, Texas USA. (Abstract No. 664-4).
  • Karunarathna, A.K., Kawamoto, K., Moldrup, P., Komatsu, T., de Jonge, L.W. (2008) Development of a predictive expression to characterize the soil water repellency based on soil organic carbon content, Proceeding of The Tenth International Summer Symposium of Japan Society of Civil Engineers, Tokyo, Japan, September 18. pp. 141-144. (Best paper presentation)
  • Karunarathna, A.K., Kawamoto K., Moldrup P., and T. Komatsu. (2008) Estimation of unsaturated hydraulic properties in water repellent soil by time domain reflectometry coil probe measurements. p. 99-104. In I. Kaihotsu (ed.) Proc. Soil Moisture Worksh., Tokyo. 26-27 May. Soil Moisture Workshop. 2008 Editorial Committee, Hiroshima, Japan.
  • Karunarathna, A.K., Kawamoto, K., Moldrup, P., Komatsu, T., de Jonge, L.W. (2008) Characterizing soil water repellency properties by soil organic carbon content, soil texture and sieved-size fractions. 5th International Conference, Interfaces Against Pollution 2008, Kyoto, Japan, 1-4 June. (Abstract No 4F16).
  • Basnayake, B.F.A, Karunarathna, A.K., Chandresena, A.S.H., and Jayaweera, M.W. (2007) An experimental approach for developing a sustainable landfill in Kaduwela, Sri Lanka. Proceedings of the International Conference on Solid Waste Management, Chennai, India, 5-7 September.
  • Esakku, S., Karthikeyan,O.P., Joseph, K., Nagendran, R., Palanivelu, K., Pathirana, K.P.M.N., Karunarathna, A.K., and Basnayake, B.F.A. (2007) Seasonal Variations in Leachate Characteristics from Municipal Solid Waste Dumpsites in India and Sri Lanka. Proceedings of the International Conference on Sustainable Solid Waste Management, 5 - 7 September 2007, Chennai, India. 341-347pp.
  • Gunarathna, H.A.Y.R., Karunarathna, A.K., Basnayake, B.F.A. and Kapukotuwa, A.S.B. (2007) Construction and evaluation of a low cost, wasted Polyethylene based liner for small landfills. Proceedings of the International Conference on Solid Waste Management, Chennai, India, 5-7 Septmber.
  • Basnayake, B.F.A., Jayakody, K.P.K., and Karunarathna, A.K. (2007) Presents Status and Futuristic Approaches in 3R initiatives in Sri Lanka, Proceedings of the International conference on Cleaner Technologies and Environmental Management, PEC, Pondicherry, India. January 4-6. pp 853-859.
  • Karunarathna, A.K., Tanaka, N., and Jinadasa, K.B.S.N., and Yutani, K. (2006)Improving nitrogen removal by carbon substrate amendment in vegetated tank with vertical flow system, Proceedings of the 40th Annual Meeting of Japan Society on Water Environment, 1-F-14-1, Sendai, Japan, Mar. 15-17, 198 pp.
  • Sasikala, S., Karunarathna, A.K., Wah Wah H.S.Y., and Tanaka, N. (2006) Kinetics of hexavalent chromium adsorption on coconut coir pith in aqueous solutions, Proceedings of the 40th Annual Meeting of Japan Society on Water Environment, 1-C-14-4, Sendai, Japan, 146 pp.
  • Karunarathna, A.K., Tanaka, N., and Jinadasa, K.B.S.N., (2005) Effect of external organic matter on nutrient removal and growth of Phragmites australis in a lab scale subsurface flow treatment wetland, Proceedings of the 5th International Water Association (IWA) Specialty Conference on Wastewater Reclamation and Reuse for Sustainability, Jeju, Korea, Nov. 8-11, 448 pp.
  • Karunarathna, A.K., Tanaka, N., and Jinadasa, K.B.S.N., (2005) Effect of external organic matter addition on lab-scale subsurface flow constructed wetland, Proceedings of the Seventh International Summer Symposium, Japan Society of Civil Engineers, Tokyo, July 30, 319-322 pp.