Mr. S Wijetunga

BSc Agric (Ruhuna), M.Phil. in Environ. Eng. (Southern Yangtze)

Senior Lecturer in Agricultural Engineering
Dept of Agric Engineering
Faculty of Agriculture, University of Ruhuna, Sri Lanka


Phone

:

+94 41 229 2200 (Official)

+94 77 3673048 (Mobile)

Fax

:

+94 41 229 2384

E-mail

:

swije@ageng.ruh.ac.lk

swije2001@yahoo.com

swije2001@gmail.coms

FULL NAME

S Wijethunga

 

PERSONAL

Born July 19, 1968

Married

 

NATIONALITY

Sri Lankan

 

ACHIEVEMENTS

  • Awarded YDA Senanayeke Gold Medal for obtaining the highest performance in Crop Science during undergraduate course.

 

HIGHER EDUCATION

  • 2003-2006: Graduate studies for M.Phil in Environmental Engineering at Southern Yangtze University, CHINA.

  • 1991-1995: Undergraduate studies for B.Sc in Agriculture at University of Ruhuna, SRI LANKA.

 

PROFESSIONAL EXPERIENCE

  • 2005.04 onward : Present position as a Senior Lecturer in Agricultural Engineering.

  • 1999.01 - 2005.04: Lecturer in Agricultural Engineering.

  • 1998.10 – 1998.12: Wildlife Range Officer, Department of wildlife conservation, Colombo 07.

  • 1998.03 – 1998.10: Consultant in Biogas Technology, Intermediate Technology Development Group, No 05, Lionel Edirisinghe Mawatha, Colombo 05, Sri Lanka.

  • 1997.05 – 1998.03: Temporary Demonstrator in Department of Agricultural Engineering, Faculty of Agriculture, University of Ruhuna, Kamburupitiya, Sri Lanka.

  • 1996.04 – 1997.04: Temporary Assistant Lecturer in Department of Agricultural Engineering, Faculty of Agriculture, University of Ruhuna, Kamburupitiya, Sri Lanka.

 

PROFESSIONAL TRAINING

  • 2002.05-2002.07: Three months training on “Remote Sensing Technology” at RESTEC (Remote Sensing Technology Center), JAPAN.

  • 2001.11-2001.11: Participated national seminar on “ Garbage as a Source of Energy and Fertilizer” at NSF, Colombo, Sri Lanka

  • 1999.10-2000.04: Completed the training course on “Certificate of Teaching in Higher Education” conducted by University of Colombo, Sri Lanka and received the certificate.

  • 1999.09-1999.09: One month training on “Biogas cum Manure Production Systems”, Rajasthan Agricultural University, INDIA.

  • 1999.05-1999.05: Organized and attended the international workshop (financed by ITDG)on “Design Performance and Marketability of Biogas Systems” at Faculty of Agriculture, University of Ruhuna. Kamburupitiya, Sri Lanka.

 

RESEARCH ENGAGEMENT

  • 2006-2008: A Community Based Sustainable Waste Management System: Development of a Functional Model in the Faculty of Agriculture -University of Ruhuna.

  • 2003-2006: Anaerobic Treatment of Textile Wastewater Containing Acid Dyes

  • 2002-2006: Design, Construction and Evaluation of a Two-Phase Digester System to Optimize the Biogasification of Rice Straw and Evaluation of Digested Materials on Low Country Vegetable Crops as an Organic Fertilizer.

  • 1995: Performance Evaluation of Clay Pots as Subsurface Irrigators and Evapotranspiration Measuring Devices.

 

RESEARCH GRANT OBTAINED

  • 2007 Instrument Repair and Calibration NSF - Sri Lanka

  • 2006 -2008 A Community Based Sustainable Waste Management System: Development of a Functional Model in the Faculty of Agriculture -University of Ruhuna. NSF - Sri Lanka

  • 2003 -2005 Design, Construction and Evaluation of a Two-Phase Digester System to Optimize the Biogasification of Rice Straw and Evaluation of Digested Materials on Low Country Vegetable Crops as an Organic Fertilizer. CARP - Sri Lanka

 

PROFESSIONAL MEMBERSHIP

  • Life member, Sri Lanka Association for the Advancement of Science (SLAAS).

 

OTHER MEMBERSHIP

  • Life member, Ruhuna Agriculture Faculty ALUMNI Association.

  • Life member, Ruhuna University ALUMNI Association.

 

DISSERTATIONS

 

Performance Evaluation of Clay Pots as Subsurface Irrigators and Low Cost Evapotranspiration Devices. B.Sc. in Agriculture Thesis, University of Ruhuna, Sri Lanka. 1995.

 

Anaerobic Treatment of Textile Wastewater Containing Acid Dyes. M.Phil. in Environmental Engineering, Southern Yangtze University, PR China. 2006.

 

JOURNALS

 

Wijetunga Somasiri, Xiu-Fen Li and Chen Jian, Effect of organic load on decolourization of textile wastewater containing acid dyes in Upflow Anaerobic Sludge Blanket reactor. Journal of Hazardous Materials; In press.

 

S Wijetunga, DHU Sandamali and KDN Weerasinghe, Evaluation of Efficacy in the Treatment of Domestic Wastewater by Different Aquatic Macrophytes; Journal of Environmental Research and Development 2009;4:297-309.

 

Wijetunga Somasiri, Xiu-Fen Li, Wen-Quan Ruan and Chen Jian, Evaluation of the efficacy of Upflow Anaerobic Sludge Blanket reactor in removal of colour and reduction of COD in real textile wastewater. Bioresource Technology 2008;99:3692-3699.

 

Wijetunga Somasiri, Li Xiufen, Wen-quan Ruan and Jian Chen, Colour and COD removal, reactor performance, and stability in textile wastewater treatment by Upflow Anaerobic Sludge Blanket reactor at mesophilic temperature. Electron. J. Environ. Agric. Food Chem. 2008:7 (10). 3461-3475.

 

S. Wijetunga, L.Xiufen, R. Wenquan and J. Chen,Removal Mechanisms of Acid Dyes of Different Chemical Groups under Anaerobic Mixed Culture. Ruhuna Journal of Science 2007;2:96-110.

 

Wijetunga Somasiri, Wen-Quan Ruan, Xiu-Fen Li, and, Chen JianDecolourization of textile wastewater containing acid dyes in UASB reactor system under mixed anaerobic granular sludge. Electron. J. Environ. Agric. Food Chem. 2006;5 (1):1224-1234.

 

Wijetunga Somasiri, Xiu-Fen Li, Wen-Quan Ruan and Chen Jian, Biological Decolourization of Simulated Textile Wastewater in UASB Reactor System by Anaerobic Granular Sludge. Journal of Tropical Agricultural Research and Extension. 2005;8:53-64.

 

PROCEEDINGS AND CONFERENCE PRESENTATIONS

 

M.P.W. Gunawardena, S. Wijetunga, C.M. Naveratne and N. Nissanka, Fruit and Vegetable Leachate in Dry Batch Biogas Digester as a Nutrient Solution for Hydroponics. 14th International forestry and environment symposium, University of Sri Jayewardenepura. Sri Lanka, 18th and 19th December, 2009. ISBN 978-955-9054-81-8.

 

N.S.B.M Atapattu, W.C.J. Chandrasiri, N. Liyanaarachchi, S. Wijetunga and W.G.S.T. Epa, Use of broiler offal silage-rice bran pellets in a qualitative feed restriction strategy for mature broilers. Sri Lanka Association for the Advancement of Science, 65th Scientific Sessions, 7 & 11th December, 2009.

 

S. Wijetunga, L.M. Saranthi Jayasinghe and K.D.N. Weerasighe,Evaluation of Simple Wastewater Treatment System for Restaurants. 14th International forestry and environment symposium, University of Sri Jayewardenepura. Sri Lanka, 18th & 19th December, 2009. ISBN 978-955-9054-81-8.

 

N. Liyanaarachchi, S. Wijetunga and Srimalee S.D.P, Weaknesses and Opportunities towards Effective Water Utilization in Institutions: A case Study in Faculty of Agriculture, University of Ruhuna. Second National Symposium, Faculty of Agriculture, University of Ruhuna, 10th September 2009.

 

S Wijetunga and KDN Weerasinghe Biogas as an Appropriate Technology for Resource Poor Families to Meet their Energy and Fertilizer Needs: A case study in Madiha east on the adoption of technology for a farm family with marginal resources. Wrap-Up Conference of CIDA Restore Project, Kandy, 27th -28th March 2009.

 

N. Liyanaarachchi and S. Wijetunga Potential and threat of e-waste accumulation: A case study at Faculty of Agriculture, University of Ruhuna. 6th Academic Sessions, University of Ruhuna, 26th March, 2009.

 

S.D.P. Srimalee, M.G.D.K. Warnakulasooriya, U.I.P. Perera, N. Liyanaarachchi, C.P. Rupasinghe, S. Wijetunga and P. Sembukuttige, Ability to Control Angoumois Grain Moth (Sitrotoga cerealella) in Paddy Storage Condition Using Biogas. 13th International forestry and environment symposium, University of Sri Jayewardenepura. Sri Lanka, 27th and 28th December, 2008. ISBN 978-955-9054-70-2.

 

M.K.T.K. Amarasinghe, N.D.N. Priyadarshani, H.K.M.S. Kumarasinghe and S. Wijetunga, Effect of Application of Organic Liquid Fertilizer on Growth and Yield Performance of Curry Chili (Capsicum annuum). 13th International forestry and environment symposium, University of Sri Jayewardenepura. Sri Lanka, 27th & 28th December, 2008. ISBN 978-955-9054-70-2.

 

N. Liyanaarachchi, N.S.B.M. Atapattu and S. Wijetunga, Development of Broiler Offal Silage-Rice Bran Mixture as an Animal Feed Ingredient: In Vitro Nutritive. 13th International forestry and environment symposium, University of Sri Jayewardenepura. Sri Lanka, 27th and 28th December, 2008. ISBN 978-955-9054-70-2.

 

B.P.N.T. Kumara, S. Wijetunga and K.H.S. Kumara Kithsiri, Evaluation of Selected Physical Properties of Fuel Wood on Tea Drying. 13th International forestry and environment symposium, University of Sri Jayewardenepura. Sri Lanka, 27th and 28th December, 2008. ISBN 978-955-9054-70-2.

 

 

N Liyanaarachchi, S Wijetunga and K D N Weerasinghe, Evaluation of Different Types of Commercially Available Domestic Compost Bins as an Option for Kitchen and Garden Waste Management. Sri Lanka Association for the Advancement of Science, 63rd Scientific Sessions, 1st & 6th December, 2008.

 

S Wijetunga, DHU Sandamali and KDN Weerasinghe, Evaluation of Efficacy in the Treatment of Domestic Wastewater by Different Aquatic Macrophytes. International Congress of Environmental Research-2008, Birla Institute of Technology and Science,Pilani, (GOA CAMPUS), ZUARINAGAR, GOA - 403726, INDIA, 18th to 20th December 2008.

 

N. Liyanarachchi and S.Wijetunga Attitudes towards energy conservation: A case study Faculty of Agriculture, University of Ruhuna, 5th Academic Sessions, University of Ruhuna, 5th March, 2008.

 

N. Liyanarachchi and S.Wijetunga Solid waste generation potential and composition in a higher education institute. 12th International forestry and environment symposium, University of Sri Jayewardenepura. Sri Lanka, 30th November- 1st December, 2007. ISBN 978-955-9054-63-4.

 

N. Liyanarachchi and S.Wijetunga, Present status and Community views on Biogas Technology as a Renewable Energy sources and Waste management Technique: Case study in Selected Two Divisional Secretaries in Matara District. 12th International forestry and environment symposium, University of Sri Jayewardenepura. Sri Lanka, 30th November- 1st December, 2007. ISBN 978-955-9054-63-4.

 

N. Liyanaarachchi, S. Wijetunga and N.S.B.M.Attapattu Communal attitude towards waste management practices: A case study in Faculty of Agriculture, University of Ruhuna. Sri Lanka Association for the Advancement of Science, 63rd Scientific Sessions, 5th & 8th December, 2007.

 

Wijetunga Somasiri, Li Xiufen, Wenquan Ruan and Jian Chen, Colour removal and its mechanisms in textile wastewater treatment by UASB reactor system with anaerobic granular sludge. 11th International Forestry and Environment Symposium, University of Sri Jayawardhanapura -Sri Lanka, 22-23 December, 2006; ISBN 955-9054-58-9.

 

S Wijetunga, KDN Weerasinghe, NE Punchihewa and GY Jayasinghe, Design of a Two-Phase Digester System to Optimize Biogasification of Rice Straw, Fourth academic sessions university of Ruhuna, Sri Lanka 29th January 2007.

 

BOOKS

 

Construction of Biogas Digester and its maintenance (Sinhala) ISBN: 978-955-1507-02-2.

 

ARTICLE REVIEWING

 

A reviewer of following International Journals (SCI).

 

Journal of Hazardous Materials.

 

Water Research.

 

Anaerobic Digestion, Biogas Technology, Waste Management, Water Quality