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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 15, No. 2, 2011, pp. 289-296
Bioline Code: ja11050
Full paper language: English
Document type: Research Article
Document available free of charge

Journal of Applied Sciences and Environmental Management, Vol. 15, No. 2, 2011, pp. 289-296

 en Impact of Industrial Effluents on Water Quality of Streams in Nakawa-Ntinda, Uganda


In Uganda industries generate large proportions of solid wastes and wastewater. The wastes are disposed into the environment untreated leading to pollution. This study was undertaken to examine selected physicochemical parameters of streams that receive effluents from different categories of industries in Nakawa - Ntinda industrial area of Kampala. the stream water quality were pH (3.68 -12.41mg/l), EC (212 - 4633 μScm-1), turbidity (20.9 - 715.9NTU), colour (72 - 958TCU), BOD (16.4 -325.5 mg/l), COD (39 -1351mg/l), TN (0.45 - 32.63mg/l), TP (0.078 - 1.674mg/l), Na (0.59 - 53.04mg/l), Cl (11.68 - 31.08mg/l), Ca (6.38- 38.75mg/l), Pb (0.039 - 0.256mg/l), Cu (0.015 - 0.52 mg/l) and Cd (below detection limit). Food and beverage industries discharged effluents in noncompliance to Ugandan national regulations (BOD, COD, EC, Nitrogen, Turbidity and Colour), while chemical and pharmaceutical industries did not comply as regards heavy metals. All the industries did not have any wastewater treatment plant. This study reveals a scenario typical of most industries in developing nations where enforcement of environmental regulations are deficient. To avoid pollution Regulatory Authorities should closely monitor compliance by industries.

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