بررسی کیفیت هیدرو ژئوشیمیایی رودخانه های مهم شهرستان ازنا ، استان لرستان ، ایران

Abstract

This research was conducted to compare the water quality of the major rivers of Azna city in Lorestan province. For this purpose information on the chemical parameters of the 4 rivers of Kamandan, Marbareh, Darehtakht and ChamZaman was prepared in the April of years 2001, 2006, 2012, 2016 and 2017.<br /> For compare the water quality of these rivers for drinking, farming and determining the water type, Shouler, Wilcox and Piper charts were drawn. <br /> Samples are within the range of WHO and ISIRI. Calcium has the highest amount of cation and The highest amount of anion is bicarbonate. The amount of SAR increased in rivers from years 2012 to 2016; Altogether, the Kamanan River in year 2017 has been of the best quality for farming and drinking. The quality of rivers in the city is good and in different years the important quality elements of rivers are in the standard of Iran and the world. The results of the Piper diagram show that the water type of the studied stations is calcium-bicarbonate and magnesium-bicarbonate. According to Schuler and Wilcox Diagrams, it can be concluded that overall the rivers have good quality for drinking and are suitable and slightly saline for agriculture.