Department of Civil Engineering



Prof. (Mrs) K.G.N.Nanayakkara

Professor


Office Address:

Department of Civil Engineering,

University of Peradeniya,

Peradeniya,20400,

Sri Lanka.

Email: nadeen@eng.pdn.ac.lk

Telephone : +94-81-2393517

  • Prof. Nadeeshani Nanayakkara, a Professor in Civil Engineering, obtained her first degree in Civil Engineering from the Faculty of Engineering, University of Peradeniya, in 2005 with First Class Honours. Subsequently, she moved to the National University of Singapore on a full scholarship for her doctoral studies. She earned her Doctorate specializing in Environmental Science and Engineering in 2010. Prior joining the Department of Civil Engineering, University of Peradeniya in 2012, she served the National University of Singapore and the National Institute of Fundamental Studies, Sri Lanka.
  • 2006- 2010: Doctor of Philosophy (Division of Environmental Science and Engineering, Faculty of Engineering, National University of Singapore, Singapore.)
  • 2001- 2005: B. Sc (Eng.) with First Class Honors (Department of Civil Engineering, Faculty of Engineering, University of Peradeniya, Sri Lanka.)
  • Electrochemical disinfection, oxidation and reduction
  • Advanced oxidation processes
  • Development and optimization of materials for pollution control
  • Materials behaviour in marine and corrosive environments
  • Dec 2019 - To date: Professor, Department of Civil Engineering, Faculty of Engineering, University of Peradeniya.
  • Apr 2012 - Dec 2019: Senior Lecturer, Department of Civil Engineering, Faculty of Engineering, University of Peradeniya.
  • Jan 2011 - Apr 2012: Research Fellow, Institute of Fundamental Studies, Kandy, Sri Lanka.
  • Jan 2010 - Aug 2010: Research Associate, Division of Environmental Science and Engineering, Faculty of Engineering, National University of Singapore.
  • Jan 2006 - Dec 2009: Lab demonstrator/ Grader, National University of Singapore, Singapore.
  • Aug 2005 - Nov 2005: Temporary Lecturer, Department of Civil Engineering, Faculty of Engineering, University of Peradeniya, Sri Lanka.
  • Mar 2005 - Jul 2005: Instructor, Department of Civil Engineering, Faculty of Engineering, University of Peradeniya, Sri Lanka.
  • Member of the American Institute of Chemical Engineers

    Patents
  • J. Paul Chen, ZhengYuming, K.G. Nadeeshani Nanayakkara, A.K.M. KhorshedAlam, Electro-Disinfection Technology for Ballast Water Treatment, US provisional patent:NO. 61/240,389 (Conversion to regular US patent is in progress), Filed on 8th September 2009.


    • Journal Papers
  • Rajika C. Karangoda and K. G. Nadeeshani Nanayakkara. Spatial Analysis of Groundwater Hardness, Electrical Conductivity, pH, and Underlying Causes for Variations in Ratnapura District, Sri Lanka, ACS ES&T Water, Accepted.
  • L.M.L.K.B. Lindamulla, N.K.R.N. Jayawardene, W.S.M.S.K. Wijerathne, M. Othman, K.G.N. Nanayakkara, K.B.S.N. Jinadasa, G.B.B. Herath, V. Jegatheesan. Treatment of mature landfill leachate in tropical climate using membrane bioreactors with different configurations, Chemosphere, Accepted.
  • A comparative study of community reverse osmosis and nanofiltration systems for total hardness removal in groundwater J. Ketharani, M.A.C.K. Hansima, Suresh Indika, D.R. Samarajeewa, Madhubhashini Makehelwala, K.B.S.N. Jinadasa, S.K. Weragoda, R.M.L.D. Rathnayake, K.G.N. Nanayakkara, Yuansong Wei, S.L. Schensul, Rohan Weerasooriya, Groundwater for Sustainable Development, 18, 100800, 2022.
  • L.M.L.K.B. Lindamulla, K.G.N. Nanayakkara, Maazuza Othman; K.B.S.N. Jinadasa; G.B.B. Herath; Veeriah Jegatheesan, Municipal solid waste landfill leachate characteristics and their treatment options in tropical countries, Current Pollution Reports, Accepted.
  • Pamodithya Wijeyawardana, Nadeeshani Nanayakkara, Chamila Gunasekara, Anurudda Karunarathna, David Law, Biplob Kumar Pramanik. Removal of Cu, Pb and Zn from stormwater using an industrially manufactured sawdust and paddy husk derived biochar, Environmental technology and innovation, 28, 102640, 2022.
  • M.A.C.K. Hansima, A.T. Jayaweera , J. Ketharani, Tharindu Ritigala, Libing Zheng, D. R. Samarajeewa, K.G.N. Nanayakkara, Ajith C. Herath, Madhubhashini Makehelwala, K.B. S.N. Jinadasa, S.K. Weragoda, Yuansong Wei, Rohan Weerasooriya. Characterization of humic substances isolated from a tropical zone and their role in membrane fouling, Journal of Environmental Chemical Engineering, 10, 107456 2022.
  • N.K.L.C. Rupasinghe , S.M.A.E. Senanayake , K.G.N. Nanayakkara. Development, characterization and mechanisms study of protonated sawdust biochar-chitosan composite bead biosorbent for defluoridation of contaminated groundwater, Bioresource Technology Reports, 17, 100946, 2022.
  • Pamodithya Wijeyawardana, Nadeeshani Nanayakkara, Chamila Gunasekara, Anurudda Karunarathna, David Law, Biplob Kumar Pramanik. Improvement of heavy metal removal from urban runoff using modified pervious concrete, Science of the Total Environment, 815, 152936, 2022.
  • R.A.J.C. Ranasinghe, M.A.C.K. Hansima, K.G.N. Nanayakkara, Adsorptive removal of fluoride from water by chemically modified coal fly ash: Synthesis, characterization, kinetics, and mechanisms, Ground water for sustainable development, 16, 100699, 2022.
  • M.A.C.K. Hansima , J. Ketharani, D.R. Samarajeewa, K.G.N. Nanayakkara, Ajith C. Herath, Madhubhashini Makehelwala, Suresh Indika, K.B.S.N. Jinadasa, S.K. Weragoda, Yuansong Wei , Rohan Weerasooriya, Probing fouling mechanism of anion exchange membranes used in electrodialysis self-reversible treatment by humic acid and calcium ions, Chemcial Engineering Journal Advances, 8, 100173, 2021.
  • J.U. Halpegama, K.Y. Heenkenda , Zhiguo Wu, K.G.N. Nanaykkara, R.M.G. Rajapakse, A. Bandara, Ajith C. Herath, Xing CHEN, Rohan Weerasooriya, Concurrent removal of hardness and fluoride in water by monopolar electrocoagulation, Journal of Environmental Chemical Engineering, 9, 106105, 2021.
  • L.M.L.K.B. Lindamulla , V. Jegatheesan, K.B.S.N. Jinadasa , K.G.N. Nanayakkara , M. Z. Othman, Integrated mathematical model to simulate the performance of a membrane bioreactor, Chemosphere, 284, 131319, 2021.
  • Nadeeshani Nanayakkara, Ishara Gayathree Arambepola, Mahesh Aluthwatte, Chandheera Rajasinghe, Gemunu Herath, Would open disposal of concentrate from low pressure membrane based plants treating fresh or slightly saline groundwater make negative environmental impacts?, Groundwater for sustainable development, 11, 100414, 2020.
  • M.A.C.K. Hansima, M. Makehelwala, K.B.S.N. Jinadasa, Y. Wei, K.G.N. Nanayakkara, A.C. Herath, Rohan Weerasooriya, Fouling of ion exchange membranes used in the electrodialysis reversal advanced water treatment,: A review, Chemosphere, 263, 127951, 2020.
  • Nadeeshani Nanayakkara, Asanga Koralage, Charuka Meegoda, Supun Kariyawasam, Removing nitrogenous compounds from landfill leachate using electrochemical techniques, Environmental Engineering Research, 24(2), 339-346, 2019.
  • Nadeeshani Nanayakkara, Chandima Weerakkody, Parakrama Karunarathne, Development and optimization of Cu-Zr/Ti cathode for removing copper from contaminated water using electrochemical reduction, Desalination and Water Treatment, 133, 114–121, 2018.
  • Pavithra Bhakthi Jayathilaka, Kushani Umanga Kumari Hapuhinna, Athula Bandara, Nadeeshani Nanayakkara, Nalaka Deepal Subasinghe, Phenol Contaminated Water Treatment on Several Modified Dimensionally Stable Anodes, Water Environment Research, 89 (8), 687-693, 2017.
  • Gayani Chathurika Pathiraja, Nadeeshani Nanayakkara, Athula Wijayasinghe, Oxygen evolution reaction of Ti/IrO2-SnO2 electrodes: A study by cyclic voltammetry, Tafel lines, EIS and SEM, Bulletin of Materials Science, 39(3), 803-809, 2016.
  • S.A.K.M. Dhanasekara, A.N.B. Attanayake, Ajith C. Herath, N. Nanayakkara, A. Senaratne, S.P. Indrarathne, Rohan Weerasooriya, Partial degradation of carbofuran by natural pyrite, Environmental Nanotechnology, Monitoring & Management, 4, 51-57, 2015.
  • Chandima Weerakkody, Gayani Chathurika Pathiraja, Parakrama Karunarathne, Nadeeshani Nanayakkara, Development of corrosion resistant composite coating with copper and zirconium, Ceylon journal of science (physical science), 19, 17-21, 2015.
  • Pratheeksha Abeygunawardhana, Nadeeshani Nanayakkara, MeththikaVithanage, Development and optimization of Ti/Cu cathode and Ti/IrO2 anode for electrochemical denitrification, Desalination and Water Treatment, DOI:10.1080/19443994.2015.1096832, 2015.
  • Pavithra Bhakthi Jayathilaka, Gayani Chathurika Pathiraja, Athula Bandara, Nalaka Deepal Subasinghe, Nadeeshani Nanayakkara, An electrochemical mechanisms study: On Steel/IrO2-Sb2O3 electrodes for oxidation of phenol in water, Canadian Journal of Chemistry, 93(5): 536-541, 2015.
  • Gayani Chathurika Pathiraja, Pavithra Bhakthi Jayathilaka, Chandima Weerakkody, Parakrama Karunarathne, Nadeeshani Nanayakkara, Comparison study of dimensionally stable anodes for degradation of chlorpyrifos in water, Current Science, 107 (2), 219-226, 2014.
  • Pavithra Bhakthi Jayathilaka, Gayani Chathurika Pathiraja, Athula Bandara, Nalaka Deepal Subasinghe, Nadeeshani Nanayakkara, Theoretical study of phenol and hydroxyl radical reaction mechanism in aqueous medium by the DFT/B3LYP/6-31+G(d,p)/CPCM model, Canadian Journal of Chemistry, 92(9), 809-813, 2014.
  • Gayani Chathurika Pathiraja, Dilini Kumari De Silva, Lasangi Danapala, Nadeeshani Nanayakkara, Investigating the surface characteristics of chemically modified and unmodified rice husk ash; bottom-up approach for adsorptive removal of water contaminants, Desalination and Water Treatment, Published online on 05 Feb 2014 (DOI:10.1080/19443994.2014.883133).
  • Zheng, Y.M., Yunus, R., Nanayakkara, K.G.N., Chen, J.P., Electrochemical decoloration of synthetic wastewater containing Rhodamine 6G: behaviors and mechanism, Industrial & Engineering Chemistry Research, 51, 5953-5960, 2012.
  • R. Weerasooriya, S.P. Indraratne, N. Nanayakkara, L. Jayarathne, C.B. Dissanayake, N. Walelawala, A. Bandara, Probing Pyrite-Carbofuran Interactions with ζ potential and IR spectroscopic measurements, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 296, 219-223, 2012.
  • K.G. Nadeeshani Nanayakkara, Yu-Ming Zheng, J. Paul Chen, A low energy intensive electrochemical system for the eradication of E. coli in ballast water: process development, mechanism study, and kinetics modeling, Marine pollution bulletin, 64 (6), 1238-1245, 2012.
  • K.G. Nadeeshani Nanayakkara, Yuming Zheng, A.K.M. Khorshed Alam, Shuaiwen Zou, J.P. Chen, Electrochemical disinfection for ballast water management: Technology development and risk assessment, Marine pollution bulletin, 63 (5-12), 119-123, 2011.
  • Shuai-Wen Zou, Yu-Ming Zheng, K.G. Nadeeshani Nanayakkara, Matsuura, T., and J. Paul Chen, Adsorptive removal of arsenic from aqueous solution by a PVDF/ Zirconia blend flat-sheet membrane, Journal of Membrane Science,374 (1-2),1-11,2011.
  • Rita Farida Yunus, Yu-Ming Zheng, K.G. Nadeeshani Nanayakkara and J. Paul Chen, Electrochemical Removal of Rhodamine 6G by Using RuO2 Coated Ti DSA, Industrial & Engineering Chemistry Research, 48 (16), 7466-7473, 2009.


    • Book Chapters
  • Nanayakkara K.G.N., Wei Y.T., Zheng Y.M., Chen J.P., Food Industry Wastewater Treatment, Handbook of Industrial and Hazardous Wastes Treatment - II, Chapter 30, Taylor and Francis & CRC Press, 2008.
  • J. Paul Chen, Edward S.K. Chian, Ping-Xin Sheng, K.G. Nadeeshani Nanayakkara, Lawrence K. Wang, Yen-Peng Ting, Desalination of seawater by reverse osmosis, Membrane and Desalination technologies, Chapter 13, The Humana Press, Inc., Totowa, NJ, USA, 2011.
  • B.U. Kaushalya, R, Inthusan, M.A.C.R. Mallikarachchni, K.G.N. Nanayakkara, Development of a combined electrocoagulation and electrochemical oxidation reactor for treating service station effluent, Lecture notes in Civil Engineering- proceedings of the 11th international conference on sustainable built environment- 2020, Kandy, Sri Lanka, Edited by; Ranjith Dissanayake, Priyan Mendis, Kolita Weerasekera, Sudhira De Silva, Shiromal Fernando, Springer, 2022.
  • Pabasari Arundathi Koliyabandara, Oshadi Hettithanthri, Anushka Rathnayake, Anushka Upamali Rajapaksha, Nadeeshani Nanayakkara, Meththika Vithanage, Hydroxyapatite for environmental remediation of water/wastewater, Integrated Environmental Technologies for Wastewater Treatment and Sustainable Development, Elsevier, 2022, pages 167-191.


    • Conference Publications
  • H.K.T.M. Herath, M.K.D.D.S. Meegoda, K.G.N. Nanayakkara, Development of an adsorbent material for removing natural organic materials from water, WaSo-Asia project special session, 11th international conference on sustainable built environment- 2020, Kandy, Sri Lanka.
  • B.U. Kaushalya, R, Inthusan, M.A.C.R. Mallikarachchni, K.G.N. Nanayakkara, Development of a combined electrocoagulation and electrochemical oxidation reactor for treating service station effluent, WaSo-Asia project special session, 11th international conference on sustainable built environment- 2020, Kandy, Sri Lanka.
  • H.M.P. Wijayawardana, Biplob Pramanik, A.K. Karunarathne, Chamila Gunasekara, David Law, K.G.N. Nanayakkara, Variation of copper adsorption with initial pH and pyrolysis temperature by saw dust and paddy husk biochar made in an industrial type pyrolizer, WaSo-Asia project special session, 11th international conference on sustainable built environment- 2020, Kandy, Sri Lanka.
  • N.K.L.C. Rupasinghe, S.M.A.E. Senanayake, K.G.N. Nanayakkara, Development of an adsorbent material to remove fluoride from water, WaSo-Asia project special session, 11th international conference on sustainable built environment- 2020, Kandy, Sri Lanka.
  • J.U. Halpegama, K.G.N. Nanayakkara, Ajith C Herath, R.M.G. Rajapakse, R. Weerasooriya, Fabrication of reduced graphene oxide – nano iron anode for electrocoagulation treatment to regulate excess fluoride in water, International Conference on Applied and Pure Sciences 2020, Faculty of Science – University of Kelaniya, 65 pp, 26th November 2020, ISSN- 978-955-704-144-5
  • J.U. Halpegama, K.G.N. Nanayakkara, Ajith C Herath, R.M.G. Rajapakse, R. Weerasooriya, Performance optimization of electrocoaglation reactor for simultaneous removal of hardness and fluoride by surface response methodology, proceedings PGIS Research Congress 2020, University of Peradeniya, Postgraduate Institute of Science, Volume 7, pp. 06, 26th -28th November 2020, ISBN- 978- 955-8787-10-6
  • Pitawala L.M.S.D., Wijeyawardana H.M.P. and Nanayakkara K.G.N., “Investigating the Effectiveness of Acid-Modified Fly Ash Adsorbent in the Removal of Calcium”, IWA Water and Development Congress & Exhibition 2019 (IWA WDCE 2019), Colombo, Sri Lanka.
  • Pitawala L.M.S.D., Wijeyawardana H.M.P. and Nanayakkara K.G.N., “Investigating the Utilization of Coal Fly Ash in the Adsorptive Removal of Fluoride from Contaminated Water”, 4th International Conference on Construction and Building Engineering & 12th Regional Conference in Civil Engineering (ICONBUILD & RCCE 2019), Malaysia, 2019.
  • Nanayakkara, K.G.N., Ranasinghe, R.A.J.C., Utilisation of fly ash as an adsorbent material for removing major pollutants in Sri Lankan ground water, 9th International Conference on Sustainable Built Environment, Kandy, Sri Lanka, December 2018.
  • Nanayakkara, K.G.N., Indrashani, S.A.N.T, Rajasinghe, R.M.C.A., Kalpage, C.S. , Jinadasa, K.B.S.N ., Weragoda, S.K., Water quality and maintenance issues in RO plants situated in CKDu affected areas, 9th International Conference on Sustainable Built Environment, Kandy, Sri Lanka, December 2018.
  • GC Pathiraja, MS Wijesingha, N Nanayakkara, Ti/IrO2/SnO2 anode for electrochemical degradation of chlorpyrifos in water: optimization and degradation performances, 7th International Conference on Key Engineering Materials (ICKEM 2017), IOP Conf. Series: Materials Science and Engineering 201 (2017) 012040 doi:10.1088/1757-899X/201/1/012040.
  • SANT Indrashani, RMCA Rajasinghe, G.B.B. Herath, K.G.N. Nanayakkara, Investigating the reverse osmosis membrane performances in CKDu affected areas, Annual civil engineering research symposium- ACERS 2017, University of Peradeniya, Sri Lanka, October 2017.
  • AGSM Aluthwatte, APIG Arambepola, G.B.B. Herath, K.G.N. Nanayakkara, Investigating the quality of concentrate of reverse osmosis membranes in CKDu affected areas, Annual civil engineering research symposium- ACERS 2017, University of Peradeniya, Sri Lanka, October 2017.
  • Asanga Koralage, Charuka Meegoda, Gayani Chathurika Pathiraja, Nadeeshani Nanayakkara, Electrochemical Water Treatment: Applications and Lessons Learnt, ICSBE 2016, Kandy, Sri Lanka, 16-18th December 2016.
  • M. K. D. C. S. Meegoda, C.Subhawickrama, G.B.B.Herath, S.K. Weragoda, Z. Maletskyi, K. G. N. Nanayakkara, Investigation of Reverse Osmosis (RO) Plants in the CKDu affected areas in Sri Lanka, The 7th International Conference on Sustainable Built Environment, Kandy, Sri Lanka, December 16-18, 2016.
  • Meegoda, M. K. D. C. S., Kariyawasam, S.T., Manipura, A., Nanayakkara, K.G.N., Development of low cost cathode material for electrochemical denitrification of leachate, iPURSE 2016, Kandy- Sri Lanka, 5/6th November 2016.
  • Charuka Meegoda, Supun Kariyawasam, Pratheeksha Abeygunawardhana, Nadeeshani Nanayakkara, Role of copper coated cathodes in electrochemical denitrification of contaminated streams, International Perspective on Water Resources and the Environment- Colombo, Sri Lanka, January 4-6, 2016.
  • P.B. Jayathilake, G.C. Pathiraja, N.D. Subasinghe, A. Bandara, N. Nanayakkara, Steel/IrO2 novel anode material for the treatment of phenol contaminated water, Proceedings of the Postgraduate Institute of Science Research Congress, Sri Lanka, October 2014.
  • G.C. Pathiraja, P.B. Jayathilake, A. Wijayasinghe, P. Karunarathne, N. Nanayakkara, Optimization of anode materials for electrochemical degradation of chlorpyrifos in water, Proceedings of the Postgraduate Institute of Science Research Congress, Sri Lanka, October 2014.
  • P.B. Jayathilake, G.C. Pathiraja, N.D. Subasinghe, N. Nanayakkara, A. Bandara, Anode material comparison and selection for the efficient electrochemical oxidation of phenol in water, Proceedings of the Peradeniya University International Research Sessions, Sri Lanka, July 2014.
  • P.B. Jayathilaka, G.C. Pathiraja, D. Subasingha, A. Bandara, N. Nanayakkara, Electrochemical oxidation techniques for urban water management, 4th International Conference on Structural Engineering and construction Management 2013, 13th – 14th December 2013, Sri Lanka
  • P.B. Jayathilaka, G.C. Pathiraja, N. Nanayakkara, Electrochemical oxidation of phenol in wastewater, Annual Sessions of the Sri Lanka Association for the Advancement of Science (SLAAS), December 2013, Sri Lanka.
  • P. W. Abeygunawardena, C. Weerakkody, K.G.N. Nanayakkara, Development of electrods for electrochemical denitrification of contaminated ground water, Peradeniya University Research Session 2012 (PURSE 2012), University of Peradeniya, Sri Lanka, July 2013.
  • Gayani Chathurika Pathiraja, Pavithra Bhakthi Jayathilaka, Nadeeshani Nanayakkara, Preparation and characterization of dimensionally stable anode for degradation of chlorpyrifos in water; Sustainable Development Conference 2013, Bangkok, Thailand, 21-23 June 2013.
  • P. W. Abeygunawardena, C. Weerakkody, K.G.N. Nanayakkara, Developing cathode material with high electro-active area for electrochemical denitrification in echloride-free electrolytes, Second international symposium on “Challenges Ahead- Water quality and human health”, Postgraduate Institute of Science (PGIS), University of Peradeniya, Sri Lanka, 15-16 March 2013.
  • Pavithra Bhakthi Jayathilaka, Gayani Chathurika Pathiraja, Nadeeshani Nanayakkara, Electrochemical treatment for phenol/ phenolic hazardous chemicals in water, Symposium on “The Potential Health and Environmental impacts of exposure to hazardous natural and man-made chemicals and their proper management” , Colombo City Hotel, Colombo, Sri Lanka, 22-23 November 2012.
  • Pratheeksha Wimansi Abeygunawardhana, Chandima Weerakkody, Nadeeshani Nanayakkara, Optimization of electrode material for electrochemical denitrification in chloride free environment, Symposium on “The Potential Health and Environmental impacts of exposure to hazardous natural and man-made chemicals and their proper management” , Colombo City Hotel, Colombo, Sri Lanka, 22-23 November 2012.
  • Gayani Chathurika Pathiraja, Pavithra Bhakthi Jayathilaka, Nadeeshani Nanayakkara, Preparation and characterization of dimensionally stable anode for degradation of chlorpyrifos in water, Symposium on “The Potential Health and Environmental impacts of exposure to hazardous natural and man-made chemicals and their proper management” , Colombo City Hotel, Colombo, Sri Lanka, 22-23 November 2012.
  • Nadeeshani Nanayakkara, H.A.P.P.B. Jayathilake, G.C. Pathiraja, Importance of electrode material in electrochemical technologies for wastewater treatment and its sustainability, International conference on sustainable built environment, Earl’s Regency Hotel, Kandy, Sri Lanka, 14-16 December 2012.
  • T.D.K. De Silva, K.G.N. Nanayakkara, Investigating properties of rice husk for contaminated removal from polluted water streams, Uva Wellassa University Research Symposium 2011- Towards a knowledge economy, UvaWellassa University, Sri Lanka, December 2011.
  • S.A.K.M. Dhanasekara, R. Weerasooriya, K.G.N. Nanayakkara, L. Jayarathne, N. Walelawela, Kinetic modeling of partial degradation of carbofuran by pyrite, Uva Wellassa University Research Symposium 2011- Towards a knowledge economy, Uva Wellassa University, Sri Lanka, December 2011.
  • G.C. Pathiraja, K.G.N. Nanayakkara, Surface modification of activated carbon to treat polluted water streams, Uva Wellassa University Research Symposium 2011- Towards a knowledge economy, Uva Wellassa University, Sri Lanka, December 2011.
  • N. Walelawala, R. Weerasooriya, N. Nanayakkara, L. Jayarathne, S.P. Indrarathna, A. Bandara, The zeta potential and IR spectroscopic measurements of Pyrite-Carbofuran interactions, 10th International conference of the east and southeast Asia federation of soil science societies- Soil, a precious natural resource: Agricultural ecosystems, environmental health & climate change, Colombo- Sri Lanka, October 2011.
  • Nadeeshani Nanayakkara, Yu-Ming Zheng,J. Paul Chen, Agricultural wastewater: A treatment perspective, Water Professionals’ Day Symposium- 2011, Faculty of Agriculture, University of Peradeniya, Sri Lanka, October 2011.
  • K.G. Nadeeshani Nanayakkara, Yu-Ming Zheng, ShuaiwenZou, A.K.M. Khorshed, J. Paul Chen, Development and evaluation of electrochemical disinfection technology for ballast water management, 3rd International Maritime-Port Technology and Development Conference 2011 (MTEC 2011), Singapore, 13-15 April 2011.
  • K.G. Nadeeshani Nanayakkara, Yu-Ming Zheng, ShuaiwenZou, A.K.M. Khorshed, J. Paul Chen, An innovative electrochemical disinfection technology for ballast water treatment: development, system performance, and environmental assessment, 5th International Conference and Exhibition on Ballast Water Management, Singapore, 2010.
  • K.G. Nadeeshani Nanayakkara, Yu-Ming Zheng,J. Paul Chen, Preparation and use of rare metal oxide coated electrode for electrochemical disinfection of ballast water, Annual meeting: American Institute of Chemical Engineers, Nashville, United States of America, 2009.
  • J. Paul Chen, K.G. Nadeeshani Nanayakkara, Yu-Ming Zheng, Kinetics of electrochemical disinfection of E. coli in ballast water, Spring meeting: American Institute of Chemical Engineers, Florida, United States of America, 2009.
  • K.G. Nadeeshani Nanayakkara, Yu-Ming Zheng,J. Paul Chen, Development and optimization of an effective and economical electrochemical disinfection system for ballast water treatment, EWRI's 2nd Developing Nations Conference: Thailand 2009, Thailand, 2009.
  • Rita Farida Yunus, Yu-Ming Zheng, K.G. Nadeeshani Nanayakkara, J. Paul Chen, Simultaneous electrochemical oxidation and coagulation of dye containing wastewater using Ti mesh/ RuO2, Annual Meeting: American Institute of Chemical Engineers, Philadelphia, United States of America, 2008.
  • K.G. Nadeeshani Nanayakkara, Yu-Ming Zheng, J. Paul Chen, Development and Optimization of a Highly Effective and Low Energy Intensive Electro-Disinfection System for Ballast Water Treatment, Annual Meeting: American Institute of Chemical Engineers, Philadelphia, United States of America, 2008.
  • K.G. Nadeeshani Nanayakkara, Yu-Ming Zheng, Shuai-Wen Zou,J. Paul Chen, Development and demonstration of a highly cost effective electrochemical technology for ballast water treatment, Second international Maritime-Port technology and development conference MTEC-2007, Singapore, 2007.
  • Faculty research awards, Certificate of commendation- 2020, Faculty of Engineering, University of Peradeniya, Sri Lanka.
  • President’s awards for scientific publications for year 2015. Selected for award by the National Research Council- Sri Lanka.
  • Merit award for scientific publications for year 2014. Selected for award by the National Research Council- Sri Lanka.
  • President’s awards for scientific publications for year 2012. Selected for award by the National Research Council- Sri Lanka.
  • Support Scheme for Supervision of Research Degrees (SUSRED)- 2017. National Science Foundation- Sri Lanka.
  • Nominated and selected to represent the National University of Singapore in 2nd HOPE meeting (one of the five representatives) organized by the Japan Society for the Promotion of Science (JSPS) -September 2009.
  • National University of Singapore Research Scholarship for Doctoral studies in Environmental Science and Engineering, from Jan. 2006 – Jan. 2010; awarded by the National University of Singapore, Singapore.
  • Prof. E.O.E. Pereira Gold Medal, Presented by the Faculty of Engineering, University of Peradeniya, Sri Lanka at the General Convocation; December 2005.
  • Prof. H.B. de Silva prize for Surveying- Presented by the Faculty of Engineering, University of Peradeniya, Sri Lanka at the General Convocation; December 2005.



Department of Civil Engineering