Dr. Sandali Dissanayake

Senior Lecturer II

B.Sc. (OUSL), M.Sc. (USJP), Ph.D (USJP), M.I.Biol (Sri Lanka)

Research interest: Wildlife Ecology, Biodiversity Conservation, and Sustainable Tourism Development

Email : sandalidissanayake@sjp.ac.lk

PUBLICATIONS

Referred Journal Publication

Dissanayake, N.U.S., Gunathilake, B.M. and Ranasinghe, S., 2021. Value Additions on Iron-Oxide Nanoparticles in Laterite Soils Available in South-West Sri Lanka: Development of Effective Filtering Techniques. Journal of Tropical Forestry and Environment, 11(01).
Dissanayake, N.U.S., Pupulewatte, P.H. and Jayawardana, D.T., 2022. Formulation and Evaluation of a Laterite Soil Based Scrubbing Effect Herbal Cleansing Bar. Journal of Drug Delivery and Therapeutics, 12(1-S), pp.91-96.
Dissanayake, N.U.S., Pupulewatte, P.H. and Jayawardana, D.T., 2022. Thermally Activated Laterite Soil as an Adsorbent for Phosphate and Fluoride Removal from Contaminated Water. Desalination and Water Treatment, pp.227-235.
Dissanayake, N.U.S., Pupulewatte, P.G.H., Jayawardana, D.T. and Senevirathne, D.M., 2022. Characterization of Kaolin-rich Laterite Soil for Applications for the Development of Soil-based Cosmetic Products. Journal of Drug Delivery and Therapeutics, 12(5-S), pp.31-40.
Buddhima, A.V.P.S., Jayawardana, D.T., Dissanayake N.U.S., and Gunathilake B.M. 2022, Development of Characteristics of Tea Waste Based Mixtures for the Removal of Fluoride in Water: A Case Study with Selected Concentrations of Fluoride in Water. Journal of the Sri Lanka Association for the Advancement of Science, 4(1), 40-62.
Dissanayake, N. U. S., Jayawardana, D. T., Buddhima, S., Mapatuna, H. and 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, Vol. 3(1), 8-14.
Dissanayake, N. U. S., Jayawardana, D. T., Buddhima, S., Mapatuna, H. and 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 for Groundwater Purification. Chemical and Environmental Science Archives, Vol. 3(1), 15-23.
Gunathilake, B.M., Jayawardana, D., Pupulewatte, P.G.H., Dissanayake, N.U.S. and Manage, P.M., 2023. Removal of methylene blue from aqueous solution using raw laterite: an adsorption study. Journal of the National Science Foundation of Sri Lanka, 51(1), pp.53–67.
Pupulewatte P.G.H., Dissanayake N.U.S., Jayawardana D.T., Gunathilake B.M. and Buddhima, A.V.P.S., 2023, Development of Characteristics of Laterite Soil Based Mixtures for the Removal of Nitrate from Drinking Water. Desalination and Water Treatment, Vol. 316, 121-135.
Dissanayake N.U.S., Jayawardana D.T., and Buddhima, A.V.P.S., 2023, Thermally Activated Laterite Soil Filled Portable Membranous Bag/Pouch Device for Removing Ions from Contaminated Water, Instantly. Journal of Tropical Forestry and Environment (Under Review).

Conference Abstract

Buthsarani, J.A.N., Dissanayake, N.U.S., Dangampola, N., 2025, Diversity Patterns of Early Migratory and Resident Birds in the Beddagana Wetland Park, Sri Lanka. In Proceedings of International Forestry and Environment Symposium (Vol. 30).
Buthsarani, J.A.N., Dissanayake, N.U.S., Dangampola, N., 2025, Visitor Perceptions of Bird-Watching and Ecotourism Potential at Beddagana Wetland Park, Sri Lanka: A SWOT-Based Assessment. In Proceedings of International Forestry and Environment Symposium (Vol. 30).
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).
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).
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 Proceedings of International Forestry and Environment Symposium (Vol. 26).
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 Proceedings of International Forestry and Environment Symposium (Vol. 25).
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 Proceedings of International Forestry and Environment Symposium (Vol. 25).
Nayanthika, I.V.K., Dissanayake, N.U.S. and Gunathilake, B.M., 2019, December. Investigation of Dyes Removing Ability by Differently Treated Selected Soil Material. In Proceedings of International Forestry and Environment Symposium (Vol. 24).
Dissanayake, N.U.S., Bandara, N.J.G.J. and Fernando, K.M.E.P., 2018. Evaluation of Quality and Performance of Compost Made by Co-Composting Municipal Solid Waste and Slaughter House Waste. In Proceedings of International Forestry and Environment Symposium (Vol. 23).
Dissanayake, N.U.S., Bandara, N.J.G.J. and Fernando, K.M.E.P., 2017. Effect of Broiler Slaughter Waste Compost on Seed Germination and Growth Performance of Selected Crop Plants. In Proceedings of International Forestry and Environment Symposium (Vol. 22).

National Patents

A technique for developing a laterite soil-based substrate for use in water purification as an active ingredient that can purify and increase the overall value of the drinking water (LK/P/1/22306)
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) – Accepted
A method for creating a laterite soil-filled bag/pouch that can be used as an active ingredient in quick water filtration and enhance the water quality (LK/P/1/22699)
Laterite based Dye Removing Filter – Industrial Design: Registered Number 13168

Lecture Programs

Honours Degree

EMF 4741 Protected Area Management

General Degree

EMF1011 Principles of Ecology
EMF 1171 Principles of Wildlife Ecology
EMF 3211 Wildlife Conservation and Management
EMF 3301 Eco Tourism Planning and Management
EMF 3221 Land Use Planning and Managemen