Browsing by Author "Ariyadasa, T"

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item: Article-Full-text
Decolourization of textile dyes and textile industry effluent in a fixed bed biofilm reactor using native microorganisms
(2021-12) Madhushika, G; Ariyadasa, T; Gunawardena, S
Textile and apparel industry plays a huge role in the Sri Lankan industrial sector, accounting more than 40% of export earnings in the country. Textile wet processing produces large volumes of coloured effluents which have potential to cause negative impacts on environment and various adverse health effects if not properly treated.
item: Conference-Extended-Abstract
Investigation of microalgae carotenoids as potential nutraceutical compounds
(Department of Chemical and Process Engineering, University of Moratuwa, 2019) Fernando, MAS; Hansika, NPS; Ariyadasa, T; Rathnasiri, PG
Haemotococcus pluvalis is a microalgae specie which is recognized as a potential source of astaxanthin accumulation. By selecting two governing cultivation parameters in the form of illumination and initial phosphorous concentration, the optimum stage of accumulated astaxanthin quantity was observed during the experiment. The cultivation of microalgae was conducted for three experimental setups in photo-bioreactors under varied light intensities and initial phosphorus concentrations, with external aeration of constant rate. The biomass growth and accumulated astaxanthin content were evaluated by spectrophotometric method. As by results obtained, the maximum of astaxanthin quantity was observed under the light intensity of 3500Lux and phosphorous concentration of 1.75mM.