期刊名称：International Journal of Environment and Bioenergy
电子版ISSN：2165-8951
出版年度：2013
卷号：6
期号：3
页码：193-201
语种：English
出版社：Modern Scientific Press
摘要：Water quality assessment was carried out on the Tawa River for the period of January 2006 to May 2006. The study revealed that the river (stream) exhibit slight temporal and spatial variation in physico-chemical characters of water. The Tawa River is a hard water river with high calcium content (calcium rich) due laxturine depositions along the river. Water is slightly alkaline with moderate fluctuation in pH. However, the river receives industrial effluents and coal ash from a thermal power plant at the Tawa tail end which increases the total dissolved solids and turbidity. Tawa River is impounded at two sites which has a negative effect on the water temperature, pH and nutrient concentration. Despite all the temporal and spatial variation in physico-chemical characters of water, the deterioration was generally of very low magnitude it might be because of high water regimes throughout the year and also the studied river has high self-purifying capacity.
