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The major cations and trace elements in Notwane river, Botswana and its suitability for irrigation
(Botswana University of Agriculture & Natural Resources, 2008)
Notwane river in Botswana, is a perennial river in which the treated secondary or tertiary sewage effluent from Gaborone activated sludge treatment plant is discharged to. The objective of this study was to evaluate the ...