Pollution Caused by the Increase of Industries in Ethiopia

A great increase in the number of small and large scale industries in Ethiopia has led to the production of a large volume of complex wastes. In abroad, various researchers have been carried out on the assessment of quality of freshwater pollution by the discharge of effluent from the industries and some domestic wastes (Eillis, 1944; Rama-Rao, et al., 1978). Industrial pollutants are known to bring changes in the abiotic and biotic components of the ecosystem. Dairy industry is noted as one of the significant contributor to water pollution. Dairy manure waste is basically biodegradable produces an undesirable odor. Also dairy waste contains sufficient nutrients for biological growth, biological treatment methods are considered more ideal and economical (Warner, 1976). For the past few years, efforts have been on either to improve the existing technologies or to develop a suitable new process. Phycoremediation is the process in which algae are employed to remediate environmental pollution. Phycoremediation involves the use of macroalgae or microalgae for effective removal or biotransformation of pollutants, including nutrients and xenobiotics from wastewater and sequester CO2 from waste air (Olguin, 2003; OlguÄ ±n, et al., 2004; Moreno-Garrido, 2008; Mulbry, et al., 2008). Over the last few decades, efforts have been made to apply intensive microalgal cultures to perform the biological tertiary treatment of secondary effluents (Oswald and Gotaas, 1957; de la Noue, et al.,Show MoreRelatedThe Factors Affecting Safe Drinking-Water (Planning and Essay Basic)1485 Words   |  6 Pagesdistribution of precipitation * Physical ability of the surface area to store water E.g. 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