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Browsing Department of Bio-science by Document type "Article"

Now showing items 1-20 of 48

Accident hotspots in southern expressway of Sri Lanka: Interpolation evaluation using GIS. Advances in Technology

Nalaka, P.K.; Akther, M.S.R.; Naveendrakumar, G. (University of Sri Jayewardenepura, 31-05-21)

In this study, the southern expressway, which is the first and lengthiest E class highway (126 km) in Sri Lanka, was analysed for roadside accident incidences. The primary objective of this paper is to identify the best-fit ...
Antimicrobial Analysis of Polygonam barbatum Leaf Extracts

Loganathan, P.; Malathy, P. (Institute of Environmental Professionals Sri Lanka: 2014, 2014-08-21)

Polygonum barbatum, known as atalari (in Tamil) or ratu kimbulwenna (in Sinhala), are perennial herbs of the family polygonaceae have been widely used anciently to treat various ailments including infections, fever, pain ...
Application of Low-Pressure Nanofiltration Membranes NF90 and NTR-729HF for Treating Diverse Wastewater Streams for Irrigation Use

Fonseka, C.; Ryu, S.; Devaisy, S.; Kandasamy, J.; McLod, L.; Ratnaweera, H.; Vigneswaran, S. (MDPI, 2024-07-11)

The application of low-pressure nanofiltration (NF) was investigated for three different applications: water reuse from acid mine drainage (AMD), surface water containing natural organic matter (NOM) and agricultural reuse ...
Assessment of Forest Cover Changes in Vavuniya District, Sri Lanka: Implications for the Establishment of Subnational Forest Reference Emission Level

Vijitharan, S.; Sasaki, N.; Venkatappa, M.; Tripathi, N.K.; Abe, I.; Tsusaka, T.W. (MDPI, 2022-07-12)

Assessment of forest cover changes is required to establish the forest reference emission level (FREL) at any scale. Due to civil conflict, such assessments have not yet been undertaken in Sri Lanka, especially in the ...
Assessment of Physico-Chemical Parameters of Groundwater For Drinking Purpose With Reference to Resettlement Area, Vavuniya

Shah, Pradip; Nanthakumaran, A.; Kawamoto, K. (Dev Sanskriti Interdisciplinary International Journal, 2019-07-31)

This study deals with Physico-chemical of groundwater and surface water that are degraded by geological structure, poor sanitation, solid waste dumping and cultivation in this area have led surface and groundwater pollution ...
Assessment of the Potential of Groundwater Supplementation by Estimating the Stabilization Value of Tank Irrigation Systems in Tamil Nadu, India

Nanthakumaran, A.; Palanisami, K. (Postgraduate Institute of Agriculture, University of Peradeniya, 2011-01-10)

Irrigation tanks are one of the oldest and most important common property water resources in the resource poor regions especially in South India and Sri Lanka. Tank irrigation accounts for more than 30% of total irrigated ...
Assessment of waterbird composition in Kalkundamaduwewa tank at Vavuniya, Sri Lanka

Maddumage, Samith Indika M.R.; Akther, M.S.R.; Aashifa, M.A.R.; Mohideen, A.H.; Tharani, G.; Naveendrakumar, G. (National Institute of Ecology, New Delhi, India., 24-12-19)

Changes in abundance of waterbirds reflect the habitat changes of a tank ecosystem. Ephemeral tanks in Vavuniya district are known as habitats for rich birds diversity during different periods of a year. A short-term field ...
Assessment of women participation in agriculture in Vavuniya district, Sri Lanka

Tharani, G.; Akther, M.S.R.; Nanthakumaran, A. (International Journal of Social Science and Management, 2016-07-28)

An attempt was made to assess the women contribution towards agriculture in Vavuniya district, Sri Lanka. 60 farm family households' women were randomly selected from rural and urban area of Kovilkulam AI region of Vavuniya ...
Comparison of Membrane-Based Treatment Methods for the Removal of Micro-Pollutants from Reclaimed Water

Devaisy, S.; Kandasamy, J.; Nguyen, T.V.; Johir, M.A.H.; Ratnaweera, H.; Vigneswaran, S. (MDPI, 2022-11-16)

Dual membrane hybrid systems generally produce reclaimed water for non-potable uses by blending microfiltered biologically treated sewage effluent (BTSE) and reverse osmosis (RO) permeate. This reclaimed water is found to ...
A conceptual analysis on the proposal on re-induction of forest growth in the North-western region of Batticaloa district, Sri Lanka

Arutpavai, S.; Naveendrakumar, G.; Nirupha, G.; Fahmitha, S.; Suthamathy, S. (http://www.ijser.org, 31-10-14)

In recent past, abundant forest covers of Batticaloa district of Sri Lanka especially in the north-western region of the district have been destructed due to various reasons, which led to emergence of lesser reproductive ...
Deposition of trace metals associated with atmospheric particulate matter: Environmental fate and health risk assessment

Meththika, V.; Pasan, C.B.; Novo, Luís A.B.; Amit Kumar; Balram, A.; Naveendrakumar, G.; Manjula, R.; Magana-Arachchi, Dhammika N. (Elsevier, 04-06-22)

Anthropogenic and natural sources influence trace metals (TMs) bound to different sized particulate matter (PM) in dry and wet atmospheric deposition, which can create ecosystem and human health issues in the long run. ...
Developmental abnormalities of Betta splendens embryos reared in oil & grease contaminated water samples of Vavuniya reservoir, Sri Lanka

Umasuthan, S.; Patrick, A.E.S.; Naveendrakumar, G.; Kuganathan, S. (International Science Community Association, 01-04-17)

In Vavuniya urban area the wash-outs from petroleum automobile service stations contain Kerosene oil, lubricating engine oil, grease as major compounds that contributing oil and grease pollution in Vavuniya reservoir, Sri ...
Distribution and Data Compilation of Irrigation Tanks to Facilitate their Management Using GIS

Akther, M.S.R.; Nanthakumaran, A.; Sivanantharaja, S. (International Journal of Pure and Applied Sciences and Technology, 2014-12-01)

The objectives of this study were to create the conversion equation to convert 1inch: 1mile reference of irrigation tanks to National Coordinate system and create a database using Arc GIS 9.3 software through documentation ...
Efficiency in Sugarcane Production Under Tank Irrigation Systems in Tamil Nadu, India

Nanthakumaran, A.; Palanisami, K. (Journal of Environmental Professionals, Sri Lanka, 2013-01-15)

An attempt was made to study the efficiency of sugarcane production by farmers under the two different sources of water supply viz., tank water with well water and the well water only. The objective was pursued first by ...
Effluent organic matter removal fromreverse osmosis feed by granular activated carbon and purolite A502PS fluidized beds

Sukanyah, S.; Nguyen, T.V.; Shim, W.G.; Kandasamy, J.; Listowski, A.; Vigneswaran, S. (ELSEVIER, 2014)

Applying pre-treatments to remove dissolved organic matter from reverse osmosis (RO) feed can help to reduce organic fouling of the RO membrane. In this study the performance of granular activated carbon (GAC), a popular ...
Experimental evaluation of microfiltration–granular activated carbon (MF–GAC)/nano filter hybrid system in high quality water reuse

Sukanyah, S.; Johir, M.A.H.; Nguyen, T.V.; Kandasamy, J.; Vigneswaran, S. (ELSEVIER, 2015)

In order to achieve high quality water reuse, a dual membrane hybrid system (combining microfiltration– granular activated carbon (MF–GAC)) adsorption hybrid system followed by nanofiltration (NF)) was used. This system's ...
Exploring the village tank cascade systems (VTCSs) in Vavuniya district, Sri Lanka

Nanthakumaran, A.; Kadupitiya, H. K.; Devaisy, S.; Athukorale, W. E. P. (IWA, 07-02-22)

An attempt was made to identify, validate the village tank cascade systems (VTCSs) and study the water flow from one village tank to another in each VTCS in the eight Agrarian Service Centre (ASC) divisions in the Vavuniya ...
Five Decadal Trends in Averages and Extremes of Rainfall and Temperature in Sri Lanka

Naveendrakumar, G.; Vithanage, Meththika; Kwon, Hyun-Han; Iqbal, M.C.M.; Pathmarajah, S.; Obeysekera, Jayantha (Hindawi, 27-12-18)

In this study, we used a comprehensive set of statistical metrics to investigate the historical trends in averages and extremes of rainfall and temperature in Sri Lanka. (e data consist of 55 years (1961–2015) of daily ...
Identification of artificial groundwater recharge zones in vavuniya district using remote sensing and gis

Ramya, R.; Nanthakumaran, A.; Senanayake, I. P. (Faculty of Agriculture, Eastern University Sri Lanka, 2019-01-07)

Ground water is a major source for domestic and irrigation purposes in Sri Lanka and plays a crucial role to human life and economic activity. With rapid growth of population and urbanization water requirements for drinking ...
Identify the causes and environmental friendly methods to control eutrophication in Vavuniya tank, Sri Lanka

Loganathan, P.; Manjceevan, A.; Naveendrakumar, G. (Institute of Environmental Professionals, Sri Lanka, 04-07-13)

This research was carried out to identify the main courses for eutrophication by measuring Nitrate and Phosphate level at different location in Vavuniya tank and to identify the main algae species of and find out environmental ...

Browsing Department of Bio-science by Document type "Article"

Browsing Department of Bio-science by Document type "Article"

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