1-D transport behaviour of emerging contaminants in the unidirectional flowing surface waters of the Msimbazi River

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dc.contributor.authorMiraji, Hossein
dc.contributor.authorMureithi, Eunice
dc.contributor.authorOthman, Othman C.
dc.contributor.authorNgassapa, Faustin
dc.date.accessioned2021-08-20T08:13:08Z
dc.date.available2021-08-20T08:13:08Z
dc.date.issued2020
dc.descriptionAbstract. Full text article available at https://www.ajol.info/index.php/tjs/article/view/196320en_US
dc.description.abstractThe primary objectives of this investigation of environmental pollution were to assess spatio-temporal concentrations and predictions of transport behaviour of pollutants in aqueous media. In order to attain these goals for the Msimbazi river, the analytical and numerical solutions to the 1-D advection-dispersion equation (ADE) implemented the first-type inlet condition. The MATLAB software was used to solve the analytical equation resulting from the ADE equation. The solution to the ADE model enabled effective prediction of contaminants’spatial distribution within a distance of 200 m from a point source in the direction of flowing water. Among the first and third-types inlet conditions, the first-type had the best exponential concentration prediction with descending concentration gradients between –100 ng/L.m and –0.4 ng/L.m, while beyond it the concentration gradient was merely constant. These findings are the first of this type in our region to the best of our knowledge, and hence a milestone for understanding the transport behaviour of emerging contaminants, and enable estimation of probable pollution-free zones. This study gave results that can form a basis for analytical and public interventions.en_US
dc.identifier.citationMiraji, H., Mureithi, E., Othman, O. C., & Ngassapa, F. (2020). 1-D transport behaviour of emerging contaminants in the unidirectional flowing surface waters of the Msimbazi River. Tanzania Journal of Science, 46(2), 371-382.en_US
dc.identifier.otherURL: https://www.ajol.info/index.php/tjs/article/view/196320
dc.identifier.urihttp://hdl.handle.net/20.500.12661/3286
dc.language.isoenen_US
dc.publisherCollege of Natural and Applied Sciences, University of Dar es Salaamen_US
dc.subjectModelling emerging contaminantsen_US
dc.subjectAdvection-Dispersion Equationen_US
dc.subjectContaminants transporten_US
dc.subjectFirst-type inlet conditionen_US
dc.subjectConcentration gradienten_US
dc.subjectEnvironmental pollutionen_US
dc.subjectPollutionen_US
dc.subjectPollutantsen_US
dc.title1-D transport behaviour of emerging contaminants in the unidirectional flowing surface waters of the Msimbazi Riveren_US
dc.typeArticleen_US
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