%0 Journal Article %T CHEMICAL, PHYSICAL AND BIOCHEMISTRY OF THREE MAIN WATER COURSES BASIN RIVER TURVO SUJO - MG %A Alexandre Rosa dos Santos %A Fernando Coelho Eugenio %A Nath¨¢lia Suemi Saito %A Telma Machado de Oliveira Peluzio %J Engenharia Ambiental : Pesquisa e Tecnologia %D 2011 %I Environmental Engineering Course / UNIPINHAL %X The land use and activities undertaken in a watershed define the water¡¯s quantity and quality. This study aimed to characterize the chemical, physical and biochemical of three main streams of the river basin Turvo Sujo (ribeir o S o Bartolomeu e rios Turvo Sujo e Turvo Limpo), and to determine the deoxygenation rate (K1) and reaeration (K2) for these waterways. Were used in the work four sampling points which were collected the water samples. The results of dissolved oxygen are favorable for the aerobic aquatic life development; in S o Bartolomeu the concentration of dissolved oxygen in water was the one with the lowest of the streams evaluated, none of the samples showed high levels of sedimentable solids and solids, only samples 1 and 3 showed high levels of BOD5, water courses 1 and 3 had higher values of K1 because they have higher concentrations of organic matter, and the stream 1 was presented the value of K2 higher. According to the results of alkalinity, acidity and hydrogen potential, samples of water from three streams studied can be considered slightly alkaline. The three streams studied have great facilities reaeration of oxygen due to low depths and creating more turbulence in the surface. %K Biochemical Oxygen Demand %K deoxygenation %K reaeration %U http://189.20.243.4/ojs/engenhariaambiental/include/getdoc.php?id=1700&article=750&mode=pdf