Rishaya, N.M.; Devaisy, S.(Faculty of Applied Science, 2023-10-25)
The rapid urbanization in Vavuniya town resulted in high volumes of urban drainage which collectively entered into Vavuniya tank located in the heart of Vavuniya town area. The existing treatment system for urban ...
Petroleum hydrocarbon contamination resulting from human activities including spills, industrial manufacturing, and fossil fuel disposal is a global environmental issue. Considering the contamination of soils by petroleum ...
Hafsa, H.N.F.; Devaisy, S.(Faculty of Applied Science, 2023-10-25)
Water hardness is the amount of dissolved calcium and magnesium ions in the water. Problems with hardwater include toughening of skin and hair, spots on sinks and clothes, scaling in boilers, washing machines, and ...
Amarasuriya, A.P.S.; Karunarathne, D.; Devaisy, S.(Faculty of Applied Science, 2023-10-25)
The coir mill industry plays a significant role in the national economy, but its wastewater poses a substantial environmental challenge due to its high electrical conduc- tivity (EC), high chemical oxygen demand (COD) ...
Thilanka, C.; Devaisy, S.(Faculty of Applied Science, 2023-10-25)
This study addresses the substantial environmental challenges associated with the rubber reclamation process, characterized by the generation of two prominent waste streams: wastewater and waste burnt rice husk, termed ...
Devaisy, S.; Vigneswaran, S.(Faculty of Technology, Eastern University, Sri Lanka, 2023-09-27)
Dual membrane hybrid systems are becoming emergent in the production of high-quality
reclaimed water for reusable purpose where microfiltration (MF) followed by Reverse Osmosis (RO) is commonly used worldwide. However, ...
Farwin, A.F.S.; Pratheepkumar, M.; Devaisy, S.(Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2023-01-28)
The increased rate of population growth resulted in the increased number of rice mill industries to fulfill the demand for rice. The rice mill wastewater contains a high load of organics and nutrients. Therefore, the direct ...
Rasanga, K.L.D.C.; Devaisy, S.(General Sir John Kotelawala Defence University, 2022-09-29)
Aquaculture has significant effects on the environment, the discharge of aquaculture wastewater without treatment causes several environmental impacts such as destruction of natural habitats, reduction in the abundance and ...
Uduwarage, U.D.T.M.; Devaisy, S.(South Eastern University of Sri Lanka, 2021-11-30)
In Sri Lanka, about 95% of the population consume rice as their staple food. The increase
of the population leads to an increment of the number of rice mills to meet the demand. This resulted in the generation of huge ...
In this article, an extensive examination is provided on the possible uses of membranes and hybrid processes in wastewater treatment. While membrane technologies face certain constraints, such as membrane fouling and ...
Reverse osmosis concentrate (ROC) produced as the by-product of the reverse osmosis process consists of a high load of organics (macro and micro) that potentially cause eco-toxicological effects in the environment. Previous ...
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 ...
Batuwita, P.M.; Ranawaka Arachchi, R.A.W.; Santhiyago, P.U.; Jayasundara, J.J.M.A.D.; Naveendrakumar, G.(Faculty of Science University of Kelaniya Sri Lanka., 2023-12-10)
Air pollution due to particulate matter (PM) remains a significant environmental concern, especially in urban areas. This study examines the relationship between PM concentrations and meteorological parameters of two ...
Naveendrakumar, G.; Pathmarajah, S.; Meththika, V.; Jayantha, O.; Iqbal, M.C.M.(National Research Council 120/7, Vidya Mawatha, Colombo 07, Sri Lanka., 2023-12-11)
Historical trend assessment is an essential part of the climate change investigation efforts. Due to several reasons, including regional climatic fluctuations, Sri Lanka is likely to have a feedback effect on the local ...
Wijerathna, A.I.S.S.; Naveendrakumar, G.; Amarathunga, A.A.D.; Pemarathne, S.K.S.(Young Scientists’ Association (NIFS-YSA), National Institute of Fundamental Studies, Hanthana Road, Kandy, Sri Lanka., 2023-09-23)
The chemical characteristics of bulk deposition vary with climatic seasons. This study aimed to investigate the chemical characteristics of bulk deposition in Sinharaja, a rainforest site, and Mattakkuliya, an urbanized ...
Batuwita, P.M.; Ranawaka Arachchi, R.A.W.; Santhiyago, P.U.; Kalpage, L.U.; Jayasundara, J.J.M.A.D.; Naveendrakumar, G.(Young Scientists’ Association (NIFS-YSA), National Institute of Fundamental Studies, Hanthana Road, Kandy, Sri Lanka., 2023-09-23)
This study examines the impact of solar radiation on ozone (O3) formation and nitrogen dioxide (NO2) depletion in Battaramulla and Kandy, Sri Lanka. Objectives include investigating diurnal and seasonal variations of solar ...
Attanayaka, A.M.S.M.; Akther, M.S.R.; Naveendrakumar, G.(The Department of Forestry and Environmental Science, University of Sri Jayewardenepura, 2023-01-28)
Although water availability for paddy production in Mahaweli System H is abundant, paddy yield is lower in Nochchiyagama (278 km2), chosen for soil assessment. Paddy yield data were used to identify the low-yielding division ...
An autonomous and effective platform for students' attendance management is presented in this paper by using most of the advanced technologies of the IoT (Internet of Things), such as mobility, wireless network, fingerprint ...
Kayanan, M.; Wijekoon, P.(Faculty of Science, University of Ruhuna, Sri Lanka, 2022-06-30)
The Least Absolute Shrinkage and Selection Operator (LASSO) is used to tackle both the multicollinearity issue and the variable selection concurrently in the linear regression model. The Least Angle Regression (LARS) ...
The deployment of IoT devices in different domains enables technical innovations and value-added services to users but also creates multiple requirements in terms of effective communication and security. IoT devices are ...