{"id":250,"date":"2015-08-28T05:52:49","date_gmt":"2015-08-28T05:52:49","guid":{"rendered":"https:\/\/science.sjp.ac.lk\/fes\/?page_id=250"},"modified":"2023-12-01T11:34:19","modified_gmt":"2023-12-01T11:34:19","slug":"dr-daham-jayawardana","status":"publish","type":"page","link":"https:\/\/science.sjp.ac.lk\/fes\/dr-daham-jayawardana\/","title":{"rendered":"Prof. Daham Jayawardana"},"content":{"rendered":"<h5><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-4297 size-medium\" src=\"https:\/\/science.sjp.ac.lk\/fes\/wp-content\/uploads\/sites\/14\/2023\/12\/Daham-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/science.sjp.ac.lk\/fes\/wp-content\/uploads\/sites\/14\/2023\/12\/Daham-300x300.jpg 300w, https:\/\/science.sjp.ac.lk\/fes\/wp-content\/uploads\/sites\/14\/2023\/12\/Daham-150x150.jpg 150w, https:\/\/science.sjp.ac.lk\/fes\/wp-content\/uploads\/sites\/14\/2023\/12\/Daham.jpg 600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/h5>\n<p><strong><span style=\"color: #808080;\"><span style=\"color: #333333;\">Prof. Daham Jayawardana<br \/>\nProfessor and Department Head<br \/>\n<\/span><\/span><\/strong>Professor in Geology,<br \/>\nB.Sc. (Geology Sp., Peradeniya) M.Sc., Ph.D. (Environmental Geochemistry, Shimane)<br \/>\nDepartment of Forestry and Environmental Science,<br \/>\nUniversity of Sri Jayewardenepura, Sri Lanka<\/p>\n<p>Email:<br \/>\n<a href=\"mailto:daham@sci.sjp.ac.lk\">daham@sci.sjp.ac.lk<\/a><br \/>\n<a href=\"mailto:daham@sjp.ac.lk\">daham@sjp.ac.lk<\/a><br \/>\n<a href=\"mailto:tarangaj@gmail.com\">tarangaj@gmail.com<\/a><\/p>\n<p><a href=\"https:\/\/scholar.google.com\/citations?hl=en&amp;user=k-36-_UAAAAJ&amp;view_op=list_works&amp;sortby=pubdate\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-371\" src=\"https:\/\/science.sjp.ac.lk\/fes\/wp-content\/uploads\/sites\/14\/2017\/08\/google-scholar.png\" alt=\"google scholar profile\" width=\"149\" height=\"34\" \/><\/a><br \/>\n<span style=\"color: #808080;\"><span style=\"color: #333333;\"><strong>Research interest :<\/strong><\/span><\/span><\/p>\n<p>Geology, Soil Science, Trace Element Mobility in Water and Soil, Geographical Information System.<\/p>\n<h2><strong>CV:<\/strong><\/h2>\n<h3><strong>Educational Qualification<\/strong><\/h3>\n<p>B.Sc. Special Degree in Geology (2005), University of Peradeniya, Sri Lanka.<br \/>\nM.Sc. in Environmental Geology (2006 \u2013 2008), University of Shimane, Japan.<br \/>\nD.Sc. in Environmental Geology (2008 \u2013 2011), University of Shimane, Japan.<\/p>\n<h3><strong>PUBLICATIONS<\/strong><\/h3>\n<h4><strong>Science Citation Expanded Journal Publications<\/strong><\/h4>\n<ul>\n<li>Matharage, H., Jayaweera, M., Bandara N.J.G.J., Jayawardana, D. T., Zoysa, K., 2023. Occurrence, persistence, and ecological risk of bisphenol an in surface water receiving raw leachate from a municipal solid waste open dump in Kerawalapitiya, Sri Lanka. Environmental Quality Management 34, (accepted).<\/li>\n<li>Herath, P.L., Buddhima, S., Gunathilake, B.M., Jayawardana, D. T., Bandara N.J.G.J., 2023, Annual fluctuation of gas concentration within the landfill surface layer in a tropical climate: A case study of a municipal wasteyard. Environmental Quality Management 34, (in press).<\/li>\n<li>Herath, P.L., Jayawardana, D. T., Bandara N.J.G.J., 2023, Surface emission determination of selected trace gases from an active municipal solid waste dumpsite under the surface physicochemical heterogeneity. Waste Management 160, 51-58.<\/li>\n<li>Herath, P.L., Jayawardana, D. T., Bandara N.J.G.J., 2023, Quantification of Methane and Carbon dioxide emissions from an active landfill: Study the effect of surface conditions on emissions. Environmental Earth Sciences 82, 64.<\/li>\n<li>Gunathilake, B.M., Jayawardana, D. T., Pupulewatte P.G.H., Dissanayake N.U.S., 2023. Removal of Methylene Blue in an Aqueous Solution Using Raw Laterite: An Adsorption study. Journal of National Science Foundation Sri Lanka 51, 53-67.<\/li>\n<li>Dissanayake N.U.S., Pupulewatte P.G.H., Jayawardana D.T., 2022.Thermally activated laterite soil as an adsorbent for phosphate and fluoride removal from contaminated water. Desalination and Water Treatment 270, 227-235.<\/li>\n<li>Dissanayake N.U.S., Pupulewatte P.G.H., Jayawardana D.T., 2022. Formulation and Evaluation of a Laterite Soil Based Scrubbing Effect Herbal Cleansing Bar. Journal of Drug Delivery and Therapeutics 12, 91-96.<\/li>\n<li>Dissanayake N.U.S., Pupulewatte P.G.H., Jayawardana D.T., 2022. Characterization of Kaolin-rich Laterite Soil for Applications for the Development of Soil-based Cosmetic Products. Journal of Drug Delivery and Therapeutics 12, 31-40.<\/li>\n<li>Goonetilleke, I.A., Subasinghe, H.C.S., Ratnayake, A.S., Jayawardana, D.T., 2021. Acid-assisted leaching of iron and manganese from Sri Lankan laterite: a potential source of alumina production. Journal of National Science Foundation Sri Lanka 49, 303-310.<\/li>\n<li>Cooray, P.L.I.G.M., Jayawardana, D.T., Gunathilake, B.M., Pupulewatte, P.G.H., 2021. Characteristics of tropical mangrove soils and relationships with forest structural attributes in the northern coast of Sri Lanka. Regional Studies in Marine Science 44, 101741.<\/li>\n<li>Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardana, D.T., Eichler, C.M., 2021. An Ecological Risk Assessment of Sediments in a Developing Environment-Batticaloa Lagoon, Sri Lanka. Journal of Marine Science and Engineering 9, 73.<\/li>\n<li>Perera, E. N. C., Jayawardana, D. T., Ranagalage Manjula, Dissanayake, D M S L B., Wijenayaka, H. M. D. S., 2020. Introduce a framework for landslide risk assessment using geospatial analysis: a case study from Kegalle District, Sri Lanka. Modeling Earth Systems and Environment 6, 2415-2431.<\/li>\n<li>Jayawardana, D.T., Madusanka, R.M.T.D., Jayasinghe, R.M.N.P.K., Adikaram, A.M.N.M., Udagedara, D.T., 2019. Sedimentary geochemistry of alluvial overburden in the primary gem deposit of Pelmadulla, Sri Lanka. Journal of National Science Foundation Sri Lanka 47, 225- 238.<\/li>\n<li>Perera, E.N.C., Jayawardana, D.T., Jayasinghe, P., Ranagalage, M., 2019. Landslide vulnerability assessment based on entropy method: a case study from Kegalle district, Sri Lanka. Modeling Earth Systems and Environment 5, 1635-1649.<\/li>\n<li>Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardana, D.T., 2019. Geochemistry and grain size distribution of surface sediments of a large semienclosed lagoon connected to the western Bay of Bengal. Estuarine, Coastal and Shelf Science 216, 4-13.<\/li>\n<li>Perera, E.N.C., Jayawardana, D.T., Jayasinghe, P., Bandara, R.M.S., Alahakoon, N., 2018. Direct Impacts of Landslides on Socio-economic System: A Case Study from Aranayake, Sri Lanka. Geoenvironmental Disasters 5, 1-12.<\/li>\n<li>Nayanthika, I.V.K., Jayawardana, D.T., Bandara, N.J.G.J., Manage, P.M., Madushanka, R.M.T.D., 2018. Effective use of iron-aluminum rich laterite-based soil mixture for treatment of landfill leachate. Waste Management 74, 347-361.<\/li>\n<li>Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardana, D.T., 2017. I\u2013P2O5 diagrams as an indicator of depositional environment in marine sediments: preliminary findings (Sri Lanka). Environmental Earth Sciences 76, 817.<\/li>\n<li>Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardana, D.T., 2017. Paleoenvironmental reconstruction using trace-fossil burrows on Quaternary sediments of Eastern Sri Lanka; An Ichnological Study. Journal of Geological Society of India 89, 71-76.<\/li>\n<li>Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardana, D.T., 2017. Chemical composition and possible sources of suspended particulate matter in the peripheral environments of Batticaloa lagoon, Sri Lanka. Regional Studies in Marine Science 16, 294-303.<\/li>\n<li>Jayawardana, D.T., Udagedara, D.T., Silva, A.A.M.P., Pitawala, H.M.T.G.A., Jayathilaka, W.K.P., Adikaram, A.M.N.M., 2016. Mixing geochemistry of cold water around non-volcanic thermal springs in high-grade metamorphic terrain, Sri Lanka. Chemie der Erde-Geochemistry 76, 555-565.<\/li>\n<li>Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardana, D.T., 2017. Spatial distribution, enrichment, and source of environmentally important elements in Batticaloa lagoon, Sri Lanka. Environmental Science and Pollution Research 24, 2089-2099.<\/li>\n<li>Udagedara D.T., Jayawardana, D.T., 2015. Assessment of chemical variability in selected major bottled waters of Sri Lanka. Environmental Earth Science 73, 7957-7965.<\/li>\n<li>Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2014. Geochemical evidence for the accumulation of vanadium in soils of chronic kidney disease areas in Sri Lanka. Environmental Earth Science 73, 5415-5424.<\/li>\n<li>Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2014. Assessment of soil geochemistry around some selected agricultural sites of Sri Lanka. Environmental Earth Science 71, 4097-4106,<\/li>\n<li>Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2012. Geochemical assessment of soils in districts of fluoride-rich and fluoride-poor groundwater, north-central Sri Lanka. Journal of Geochemical Exploration 114, 118-125.<\/li>\n<li>Jayawardana, D.T., Ishiga, H., Pitawala, H.M.T.G.A., 2012. Geochemistry of surface sediments in tsunami-affected Sri Lankan lagoons regarding environmental implications. International Journal of Environmental Science and Technology 9, 41-55.<\/li>\n<\/ul>\n<h4><strong>Other Journal Publications <\/strong><\/h4>\n<ul>\n<li>Dissanayake, N.U.S., Jayawardana, D.T., Buddhima, S., Mapatuna, H., Ravilojan H., 2023. Thermally modified laterite soil by means of an adsorptive material for copper and chromium elimination from polluted water. Chemical and Environmental Science Archives 3, 8-14.<\/li>\n<li>Dissanayake, N.U.S., Jayawardana, D.T., Dissanayake, N.U.S., Buddhima, S., Mapatuna, H., Ravilojan H., 2023. Groundwater quality assessment in Anuradhapura district of the dry zone for domestic purposes and the effectiveness of laterite soil-based domestic water filter as an adsorbent. Chemical and Environmental Science Archives 3, 15-23.<\/li>\n<li>Buddhima, A.V.P.S., Jayawardana, D. T., Dissanayake, N.U.S., Gunathilake, B.M., Herath, P.L., 2022. Development of a tea waste-based mixture for the removal of fluoride in water: A case study with selected concentrations of fluoride in water. Journal of Sri Lanka Association of Advancement of Science 4, 40-62.<\/li>\n<li>Gunathilake, B.M., Jayawardana, D.T., Rathnayake, A.S., Adikaram, A.M.N.M., 2022. Qualitative mineralogical analysis of Barracuda exploration well in the offshore Mannar Basin (the Indian Ocean) using FTIR and XRD techniques. Ruhuna Journal of Science 13, 92-109.<\/li>\n<li>Perera, E.N.C., Jayawardana, D.T., Ranagalage, M., 2019. Post Disaster Recovery Process of Landslides in Developing Countries: A Case Study of Aranayake Landslide &#8211; Sri Lanka. Review of Environment and Earth Sciences 6, 14-23.<\/li>\n<li>Perera, E.N.C., Jayawardana, D.T., Ranagalage, M., 2018. Spatial Multi Criteria Evaluation (SMCE) Model for Landslide Hazard Zonation in Tropical Environment: a case study from Kegalle District, Sri Lanka. Geoinformatics and Geostatistics: An Overview 53.<\/li>\n<li>Nayanthika, I.V.K., Jayawardana, D.T., Gunathilake, B.M., 2018. Sorption of Fe ions in aqueous medium by laterite clay: Study of pH dependency. Journal of Geological Society of Sri Lanka 19 (1), 35-46.<\/li>\n<li>Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Jayawardana, D.T., 2018. Coastal evolution and sediment succession of Sri Lanka: a review on quaternary sea levels, climates and sedimentation processes. Journal of Geological Society of Sri Lanka 19 (2), 1-16.<\/li>\n<li>Perera, E.N.C., Jayawardana, D.T., Jayasinghe, P., 2017. A rainfall intensity-duration threshold for mass movement in Badulla, Sri Lanka. Journal of Geoscience and Environment Protection 5, 135-152.<\/li>\n<li>Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardana, D.T., 2015. Taphonomy of recent burrows from eastern coast, Sri Lanka. Journal of Geological Society of Sri Lanka 17, 11-17.<\/li>\n<li>Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Jayawardhana, D.T., 2015. Grain Size Characterization of Lagoon-estuarine System: Eastern Coast, Sri Lanka. International Journal of Science and Research 4, 3087-3094.<\/li>\n<li>Jayawardana, D.T., Balasooriya, N.W.B., Weerakoon, W.A.P., 2014. Geochemical characteristics of hydrated iron-ore deposit in Dela, Sri Lanka. Journal of Geological Society of Sri Lanka 16, 43-52.<\/li>\n<li>Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2012. Geochemical study of arsenic and other trace elements in natural and agricultural soil around the shallow groundwater in Sri Lanka. Tropical Agriculturist 160, 1-19.<\/li>\n<li>Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2011. Chemical stability relations of sediments and water in tsunami affected Sri Lankan lagoons and their consequences with groundwater chemistry. Journal of Geological Society of Sri Lanka 14, 74-87.<\/li>\n<li>Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2010. Groundwater quality in different climatic zones of Sri Lanka: focus on the occurrence of fluoride. International Journal of Environmental Science and Development 1, 244-250.<\/li>\n<\/ul>\n<h3><strong>Conference Abstract <\/strong><\/h3>\n<ul>\n<li>Jayawardana, D.T., 2023. Groundwater Quality Implications from Geology of Sri Lanka: A way forward. Symposium proceedings of Long-term Forest Monitoring Research in Asia, on 06-10 March 2023. at Universitas Gadjah Mada, Indonesia.<\/li>\n<li>Gunathilake, B.M., Jayawardana, D.T., Ratnayake, A.S., Adikaram, A.M.N.M., 2023. Paleo-climatic Conditions of Late Jurassic to Early Cretaceous Andigama Gondwana Sediment in Sri Lanka. Symposium proceedings of Long-term Forest Monitoring Research in Asia, on 06-10 March 2023. at Universitas Gadjah Mada, Indonesia.<\/li>\n<li>Dissanayake, N.U.S., Jayawardana, D.T., Buddhima, A. V. P. S., Gunathilake, B.M., Membranous Filter with Thermally Activated Laterite Soil-filled for Instantly Removing Ions from Contaminated Water. Symposium proceedings of Long-term Forest Monitoring Research in Asia, on 06-10 March 2023. at Universitas Gadjah Mada, Indonesia.<\/li>\n<li>Herath, P.L., Gunathilake, B.M., Jayawardana, D.T., Bandara N.J.G.J., 2023. Diurnal variation pattern of trace gases concentration on landfill surface layer under tropical climatic conditions. Symposium proceedings of Long-term Forest Monitoring Research in Asia, on 06-10 March 2023. at Universitas Gadjah Mada, Indonesia.<\/li>\n<li>Rathnayake R.M.U. B., Chandrathilake G.G. T., Jayawardana D.T., Tanaka, N., 2023. A correlation analysis of water quality and habitat types of Kolonnawa Marsh, Colombo, Sri Lanka. Symposium proceedings of Long-term Forest Monitoring Research in Asia, on 06-10 March 2023. at Universitas Gadjah Mada, Indonesia.<\/li>\n<li>Kumara, U.I., Jayawardana, D.T., Gunathilake, B.M., 2023. Application of Multispectral Drone for Quantitative Assessment of the Fertilizer Requirement for the Up-country Tea Plantation in Sri Lanka. 27th International Symposium on Forestry and Environmental Science. Sri Jayewardenepura University.<\/li>\n<li>Kumara, U.I., Jayawardana, D.T., Gunathilake, B.M., 2023. Spatial and Temporal Assessment of Land Use and Land Cover in Wilpattu National Park Restricted Zone, Sri Lanka. 27th International Symposium on Forestry and Environmental Science. Sri Jayewardenepura University.<\/li>\n<li>Dissanayake, N.U.S., Jayawardana, D.T., Buddhima, A. V. P. S., Mapatuna, M. H. L., Gunathilaka, B.M. and Hisho, R., 2023, Evaluation of the Quality of the Groundwater Used for Domestic Purposes in the Anuradhapura District of the Dry Zone and the Efficacy of Laterite soil-based Household Water Filters as adsorbents. In Proceedings of International Forestry and Environment Symposium(Vol. 27).<\/li>\n<li>Dissanayake, N.U.S., Jayawardana, D.T., Buddhima, A. V. P. S. and Gunathilaka, B.M., 2023, Membranous Filter with Thermally Activated Laterite Soil-filled for Instantly Removing Ions from Contaminated Water. Japan Society for the Promotion of Science Core-to-Core Symposium (Vol. 3).<\/li>\n<li>Dissanayake, N.U.S., Jayawardana, D.T., Buddhima, A.V.P.S., Mapatuna, M.H.L. and Hisho, R., 2022, June. Performance of Thermally Activated Laterite Soil as Adsorbent for the Removal of Chromium and Copper. In\u00a0Proceedings of International Forestry and Environment Symposium(Vol. 26).<\/li>\n<li>Dissanayake, N.U.S., Pupulewatte, P.G.H., Senevirathne, D.M. and Jayawardana, D.T., 2020. Characterisation of Kaoline Rich Laterite Soil for the Development of Soil Based Cosmetic Products. In\u00a0Proceedings of International Forestry and Environment Symposium(Vol. 25).<\/li>\n<li>Dissanayake, N.U.S., Pupulewatte, P.G.H. and Jayawardana, D.T., 2020. Performance of Thermally Activated Laterite Soil as Adsorbent for the Removal of Phosphate and Fluoride. In\u00a0<em>Proceedings of International Forestry and Environment Symposium<\/em>(Vol. 25).<\/li>\n<li>Perera, E.N.C., Jayawardana, D.T., Jayasinghe, P., Ranagalage, M., 2019. A Framework for Assessing the spatial Distribution of Venerability of Communities to Landslides: A Case Study from Kegalle District \u2013 Sri Lanka. 7th Conference on Sri Lanka Japan Collaborative Research.<\/li>\n<li>Cooray, P.L.I.G.M., Jayawardana, D.T., 2019. Potential of Normalized Difference Vegetation Index Derived from Multispectral Optical Satellite Imagery to Estimate Stand Basal Area and Biomass of Mangroves. International Research Conference of Uwa Wellassa University (IRCUWU).<\/li>\n<li>Perera, E.N.C., Jayawardana, D.T., 2018. Scio-economic Risk assessment of Soil Erosion Integrating GIS in Universal Soil Loss Equation: A case Study from Nillambe Catchment, Kandy. Proceedings of the 2nd International Research Symposium of Uva Wellassa University.<\/li>\n<li>Hewage, I., Jayawardana, D.T., Udagedara, D.T., 2018. Study of Applicability of Kaolin to Remove Heavy Metals (Cr, Mn, Cu, Fe and Cd) from Textile Sludge. Proceedings of the 1st International Research Symposium of Uva Wellassa University.<\/li>\n<li>Goonetilleke, W.A.I.A.T., Jayawardana, D.T., Ratnayake, A.S., 2018. Selective Removal of Iron Oxide in Sri Lankan Laterite. Proceedings of the International Research Symposium of Uva Wellassa University.<\/li>\n<li>Madhubhashani, H.G.M.P., Adikaram, A.M.N.M., Jayawardana, D.T., Udagedra, D.T., 2018. Possible Extraction Efficiency of Iron from Laterite Soil at Lower pH: Preliminary Findings. 7th Annual Science Research Sessions, South Eastern University of Sri Lanka.<\/li>\n<li>Perera, E.N.C., Jayawardana, D.T., 2018. A rainfall Intensity-duration Threshold for Mass Movements in Tropical Highlands: A Case Study from Badulla District, Sri Lanka. Sri Lanka Associations for the Advancement of Science, Proceedings of the 74th Annual Sessions.<\/li>\n<li>Perera, E.N.C., Jayawardana, D.T., 2018. Direct Impacts of Landslides on Sustainable Agroforestry System: A Case Study from Aranayake, Sri Lanka. Sri Lanka Associations for the Advancement of Science, Proceedings of the 74th Annual Sessions.<\/li>\n<li>Jayarathne, A.M.H., Jayawardana, D.T., 2018. Development of Activated Iron Oxide Soil Pellets to Study the Filtering Efficiency of Fluoride Ions in Aqueous Fluoride Solutions. 23rd International Symposium on Forestry and Environmental Science.<\/li>\n<li>Gunathilake, B.M., Jayawardana, D.T., Nayanthika, I.V.K., 2018. Removal of the Methylene Blue in an Aqueous Solution Using Raw Laterite: Adsorption Studies. 23rd International Symposium on Forestry and Environmental Science.<\/li>\n<li>Gallage, H.T., Jayawardana, D.T., 2018. Characteristics of Leachate Infiltration through the Red Earth Profiles: A Laboratory Based Study. 23rd International Symposium on Forestry and Environmental Science.<\/li>\n<li>Ekanayake, M., Udayanga, D., Jayawardana, D.T., Manage, P.M., 2018. Effectiveness of Aspergillus aculeatus on Decolorisation of Mixture of Two Different Textile Dye Classes. 23rd International Symposium on Forestry and Environmental Science.<\/li>\n<li>Perera, E.N.C., Jayawardana, D.T., 2018. Student Perceptions on the Effect of Geospatial Science Field-based Training to Enhance Student Self-confidence. Joint CETU- SLAIHEE Higher Education Conference.<\/li>\n<li>Nayanthika, I.V.K., Jayawardana, D.T., Madusanka, R.M.T.D., 2017. Performance of Landfill Leachate Treatment from Laterite Based Soil-Layering System: A Laboratory Scale Investigation. 22nd International Symposium on Forestry and Environmental Science.<\/li>\n<li>Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardhana, D.T., Prasadini, K.W., 2017. Bio-geology and Sedimentary Geochemistry: A Case Study in Batticaloa Lagoon, Sri Lanka. Proceedings of the 33rd Technical Sessions of Geological Society of Sri Lanka.<\/li>\n<li>Madusanka, R.M.T.D., Jayawardana, D.T., Jayasinghe, R.M.N.P.K., Nayanthika, I.V.K., Raveendrasinghe, S.V.T.D., 2017. Geological Evidences on Mine Gas Emissions of a Selected Alluvial Gem Deposit in Pelmadulla, Sri Lanka. Proceedings of the 33rd Technical Sessions of Geological Society of Sri Lanka.<\/li>\n<li>Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardhana, D.T., 2016. Heavy Metal Contamination Status in Surface Sediments of Batticaloa Lagoon, Sri Lanka. Proceedings of the 32nd Technical Sessions of Geological Society of Sri Lanka.<\/li>\n<li>Madusanka, R.M.T.D., Jayawardana, D.T., Jayasinghe, R.M.N.P.K., 2016. Fourier Transform Infrared (FTIR) Spectroscopic Analysis of Soil Organic Matter in an Alluvial Type Gem Deposit in Pelmadulla, Sri Lanka. 21st International Symposium on Forestry and Environmental Science.<\/li>\n<li>Nayanthika, I.V.K., Jayawardana, D.T., 2016. Development of a Laboratory Scale Filter Using Laterite to Treat Landfill Leachate. 21st International Symposium on Forestry and Environmental Science.<\/li>\n<li>Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardana, D.T., 2016. Elemental geochemistry of superficial sediments of Batticaloa lagoon, Sri Lanka: Implications for provenance and sedimentary processes. Sri Lanka-Japan Collaborative Research Symposium.<\/li>\n<li>Dias, A.A.S.D., Jayawardana, D.T., 2015. Chemical Characteristics of Buffer Zone Sediments and Implications on Adjoining Water in Diyawanna Lake. Proceedings of the 20th International Forestry and Environment Symposium.<\/li>\n<li>Prasadi, M.A.D., Jayawardana, D.T., 2015. Mineralogical, Sedimentological and Chemical Relationships of Sediments in Lower Peneplain of the Kelani River. Proceedings of the 20th International Forestry and Environment Symposium.<\/li>\n<li>Dilani, P., Jayawardana, D.T., Udagedara, D.T., 2015. Groundwater Contamination in Jaffna Red Beds: Mainly Focused on Nitrate and Trace Elements. Proceedings of the 20th International Forestry and Environment Symposium.<\/li>\n<li>Adikaram, A.M.N.M., Pitawala, H.M.T.G.A., Ishiga, H., Jayawardhana, D.T., 2015. Occurrence of Trace Fossils in Eastern Coast of Sri Lanka: Implications for Paleoenvironment. Proceedings of the 31st Technical Sessions of Geological Society of Sri Lanka.<\/li>\n<li>Wijenayaka, W.N.C., Jayawardhana, D.T., 2015. Groundwater Contamination around in Paddy Terrace in Badulla; special focus on nutrients and tracer element mobility. Proceedings of the Research Symposium of Uva Wellassa University.<\/li>\n<li>Rupathasan, N., Udagedra, D.T., Jayawardana, D.T., 2015. Investigation of the effectiveness of Upparu salt barrage in Jaffna peninsula (3rd stage). Proceedings of the Research Symposium of Uva Wellassa University.<\/li>\n<li>Premalal, W.A.V., Jayawardhana, D.T., 2015. Effect of Low pH of Groundwater in Rathupaswala Area, Sri Lanka: A Case Study. Proceedings of the Research Symposium of Uva Wellassa University.<\/li>\n<li>Wickramsinghe, P.C.B., Udagedra, D.T., Jayawardana, D.T., 2015. Heavy metals and trace element distribution in Eppawala Apatite deposit. Proceedings of the Research Symposium of Uva Wellassa University.<\/li>\n<li>Baddevidana R.M., Jayawardana D.T., 2014. Improvement of Drinking Water Quality using Laterite Based Soil Filter. Proceedings of the 19th International Forestry and Environment Symposium.<\/li>\n<li>Wickramage, S.U., Jayawardana, D.T., Cooray J.T., 2014. Development of grease product using natural mica in mineral sands. Proceedings of the 19th International Forestry and Environment Symposium.<\/li>\n<li>Adikaram, A.M.N.M., Pitawala H.M.T.G.A., Ishiga H. and Jayawardana D.T., 2014. A sedimentary response to recent age sea level changes in eastern coast of Sri Lanka-preliminary findings. PGIS research congress, Peradeniya Sri Lanka.<\/li>\n<li>Jayasinghe, E.T.D., Perera, P.K.P., Jayawardena, D.T., Jayakody, A.N., 2014. An Investigation on Spatial Variability of Some Soil parameters of Landscape under Mahogany in Wet Zone of Sri Lanka. 18th International Symposium on Forestry and Environmental Science. Sri Jayewardenepura University.<\/li>\n<li>Janajeewa, W.M.C., Cooray J.T., Jayawardana, D.T., 2013. Sedimentological and Mineralogical Investigations of Heavy Mineral Sand Deposits in Mahaweli River\u00a0\u00a0 Alluvial Fan. Research Symposium in Uva Wellassa University of Sri Lanka.<\/li>\n<li>Suganan, R., Udagedara, D.T., Jayawardana, D.T., 2013. Investigation of the Effectiveness of Salt Barrages in Jaffna Peninsula. Research Symposium in Uva Wellassa University of Sri Lanka.<\/li>\n<li>Weerakoon, W.A.P., Balasooriya N.W.B., Jayawardana, D.T., 2013. Structural and Geochemical Characteristics of Limonite ore in Dela Sri Lanka. Research Symposium in Uva Wellassa University of Sri Lanka.<\/li>\n<li>Premathilake, D.S., Jayawardana, D.T., 2013. Study of cation exchange properties of selected coastal soils in Sri Lanka with seawater. Research Symposium in Uva Wellassa University of Sri Lanka.<\/li>\n<li>Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2012. Geochemical evidences in soil and water leading to chronic renal failure unknown etiology in dry zone Sri Lanka. International Symposium on water quality and human health: challenges ahead. Postgraduate Institute of Science, University of Peradeniya in Collaboration with the Toyama Prefectural University, Japan.<\/li>\n<li>Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2011. Trace Element Geochemistry of Soils in Fluoride-rich shallow Groundwater Sites in Sri Lanka. Goldschmidt, Prague, Czech Republic.<\/li>\n<li>Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2011. Inferring the chemical and physical parameters of groundwater of some villages in Sri Lanka for the occurrence of fluoride. International Union of Geodesy and Geophysics Conference (IUGG), Melbourne, Australia.<\/li>\n<li>Jayawardana, D.T., Pitawala, H.M.T.G.A., Ishiga, H., 2010. A comparison of geochemical characteristics of tsunami sediments with rocks, soils and marshy sediments in Sri Lanka. American Geophysical Union (AGU) Fall Meeting, San Francisco, USA.<\/li>\n<li>Jayawardana, D.T., Ishiga, H., Pitawala, H.M.T.G.A., 2007. Ground and surface water quality of tsunami affected southwestern coastal area of Sri Lanka. American Geophysical Union (AGU) Fall Meeting, San Francisco, USA.<\/li>\n<li>Ranasinghe, S., Jayewardene, D., Priyanthi, R. G. A., 2019. Increase the Turbidity Removal Efficiency in Raw Water Using Different Coagulation Process in Drinking Water Treatment: A Case Study in Water Treatment Plant of Kandana. 24th International Symposium on Forestry and Environmental Science.<\/li>\n<li>Perera, E.N.C., Jayawardana, D.T., Jayasinghe, P., 2018. Landslide Hazard Assessment in Bulathkohupitiya DS Division-Kegalle District. 5th International Conference on Multidisciplinary Approaches.<\/li>\n<li>Jayawardana, D.T., Gunatileke, A.A.J.K.G., 2005. Surface geological and three-dimensional hydrogeological modeling of the Samanalawewa hydropower project in Sri Lanka. National Symposium on Geo-informatics Society, Sri Lanka. (Conference paper).<\/li>\n<\/ul>\n<h3><strong>National Patents<\/strong><\/h3>\n<ul>\n<li>A laterite based product to remove dye from an aqueous medium and preparation method thereof &#8211; 2021-01-22.<\/li>\n<li>A method to treat textile dye contaminated wastewater effluents using the integrated application of laterite soil, microbial consortium and aquatic floating plants \u2013 2021-01-22.<\/li>\n<li>A industrial design for the effective dye treatment from laterite soil.<\/li>\n<li>A technique for developing a laterite soil-based substrate for use in water purificationas an active ingredient that can purify and increase the overall value of the drinking water (LK\/P\/1\/22306).<\/li>\n<li>A method for manufacturing a laterite soil-based substrate for use in skincare and cosmetic products as an active ingredient that can exfoliate, purify and improve the overall quality of the skin (LK\/ P \/ 1 \/ 22307).<\/li>\n<\/ul>\n<h3><strong>Lecture Programs<\/strong><\/h3>\n<h4><strong>Postgraduate\u00a0<\/strong><\/h4>\n<p>FEM 101 01\u00a0\u00a0 Earth Science (Geology, Soil and Climatology)<br \/>\nFEM 112 02\u00a0\u00a0 Geographical Information System and Remote Sensing<\/p>\n<h4><strong>Honours Degree\u00a0<\/strong><\/h4>\n<p>EMF 467 01\u00a0\u00a0 Soil and Soil Conservation<br \/>\nEMF 468 01\u00a0\u00a0 Remote Sensing, GIS and Mapping<br \/>\nEMF 472 01\u00a0\u00a0 Land Reclamation and Soil Remediation<br \/>\nEMF 478 01\u00a0\u00a0 Disaster Management<br \/>\nASP 478 02\u00a0 \u00a0 Soil and Its Applications<br \/>\nARM 412 01\u00a0 Soil and Geology in Aquatic System<\/p>\n<p><strong>General Degree<\/strong><\/p>\n<p>EMF 114 01\u00a0 \u00a0General Geology and Soil Science<br \/>\nEMF 333 01\u00a0 \u00a0Application of GIS in Resource Management<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Prof. Daham Jayawardana Professor and Department Head Professor in Geology, B.Sc. (Geology Sp., Peradeniya) M.Sc., Ph.D. (Environmental Geochemistry, Shimane) Department &hellip; <a href=\"https:\/\/science.sjp.ac.lk\/fes\/dr-daham-jayawardana\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Prof. Daham Jayawardana<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_eb_attr":"","ub_ctt_via":"","_ti_tpc_template_sync":false,"_ti_tpc_template_id":"","footnotes":""},"featured_image_src":null,"_links":{"self":[{"href":"https:\/\/science.sjp.ac.lk\/fes\/wp-json\/wp\/v2\/pages\/250"}],"collection":[{"href":"https:\/\/science.sjp.ac.lk\/fes\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/science.sjp.ac.lk\/fes\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/science.sjp.ac.lk\/fes\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/science.sjp.ac.lk\/fes\/wp-json\/wp\/v2\/comments?post=250"}],"version-history":[{"count":12,"href":"https:\/\/science.sjp.ac.lk\/fes\/wp-json\/wp\/v2\/pages\/250\/revisions"}],"predecessor-version":[{"id":4355,"href":"https:\/\/science.sjp.ac.lk\/fes\/wp-json\/wp\/v2\/pages\/250\/revisions\/4355"}],"wp:attachment":[{"href":"https:\/\/science.sjp.ac.lk\/fes\/wp-json\/wp\/v2\/media?parent=250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}