Study of Manganese Accumulation and Temporal Variation of Water Quality in Badulu Oya

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dc.contributor.author Wijesinghe, N.H.
dc.contributor.author Thilakarathne, E.P.D.N.
dc.contributor.author Guruge, K.P.G.K.P.
dc.date.accessioned 2019-04-06T04:51:50Z
dc.date.available 2019-04-06T04:51:50Z
dc.date.issued 2019-02
dc.identifier.isbn 9789550481255
dc.identifier.uri http://www.erepo.lib.uwu.ac.lk/bitstream/handle/123456789/91/51.pdf?sequence=1&isAllowed=y
dc.description.abstract Demand of safe drinking water is gradually increasing with rising of population in Sri Lanka as a basic need of human. Badulu oya is the main water source for drinking water in Badulla District, Uva province. Recently manganese (Mn) concentration in Demodara reservoir which was made for the purpose of water treatment facility year-round has increased unsteadily from the Sri Lankan Standards for drinking water (0.1 ppm). Therefore, the present study was conducted to determine Mn accumulation in the reservoir and to identify temporal variation of physico-chemical parameters of water. Sixteen locations from disparate upper tributaries and the reservoir were selected for sampling and that was carried out from October 2018 to December 2018. Manganese concentration of water samples were determined using Atomic Absorption Spectrometer and other water quality parameters; Turbidity, TDS, Alkalinity, Hardness were measured using standards methods. Data were statistically analyzed using SPSS 23.0 package. There was a significant difference of Mn concentration in the reservoir (06°54'47.0016" N, 081°03'38.0016" E) with the time (p<0.05) and with the location (p<0.05). Average Mn concentration in the reservoir (0.12 ppm) was significantly higher than the average Mn concentration of all other sampling sites (0.02 ppm). Average turbidity of the reservoir was correlated with average turbidity of all other sampling sites (r=0.855). Average TDS (53.25 ppm), Alkalinity (36.40 ppm), and Hardness (44.22 ppm) of reservoir were lower than the average value of all other sampling sites (60.96 ppm, 51.22 ppm, 49.77 ppm respectively). The results of this study will be helpful to take necessary actions to mitigate accumulated manganese of reservoir. Agricultural and industrial activities as mining of quarries may cause to adversely change the water quality parameters of Demodara reservoir. But more studies are needed to find out reason(s) for reservoir has higher Mn concentration. en_US
dc.language.iso en en_US
dc.publisher Uva Wellassa University of Sri Lanka en_US
dc.subject Bioprocess Technology en_US
dc.subject Biotechnology en_US
dc.subject Bio Chemicals Engineering en_US
dc.title Study of Manganese Accumulation and Temporal Variation of Water Quality in Badulu Oya en_US
dc.title.alternative International Research Conference 2019 en_US
dc.type Other en_US


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