KİŞ ÇAYININ DİB ÇÖKÜNTÜLƏRİ

Abstract

Abstract: Transportations of rivers are composed of small fractions with high adsorption capacity. These particles settle in the beds and on the banks of the rivers during displacement and collects complex chemical compounds. particles that are equal to or smaller than 0.02 mm in size have good adsorption capacity. but as a result of further hydraulic and hydro-chemical impacts, these particles desorbs and pollute water for the second time. In Germany, the content of bottom sediments is examined every 3 to 5 years during monitoring of the studies of river water. During the monitoring, samples of bottom sediment taken from different spots of the river are analyzed and based on the results of these analyses, polluted parts of the river are determined. Comparison of measured value of the elements with the norms accepted is made to determine which part of the river is polluted. Classification is provided based on the pollution degree of the bottom sediments. Adsorption of salts and organic substances by the bottom sediments shows the adsorption capacity of the bottom sediments. Thus, taking into account the abovementioned, it is planned to determine and compare the adsorption capacity of the bottom sediments in difference locations of the Kish River. Studies of the bottom sediments of the Kish River are provided. Study of the chemical composition of the bottom sediments in the rivers determines the adsorption capacity of the bottom sediments. It is known that during spring and autumn when the water level is higher in the rivers, the water received by the river washes the suspended solids from the riverbed and surrounding areas. These suspended solids are composed of organic and inorganic matters. Analyses were conducted to study the content of the bottom sediments of the Kish River. During the analyses, anions (CL– , SO2+4, HCO– 3) and cations (Na++K+ , Mg2+, Ca2+), their groups and classes according to O.A.Alyokin, relationships, some chemical characteristics, salt content, chemical oxygen demand (COD), biological oxygen demand (BOD5), bacteriological parameters were studied. The results of the analyses were compared and the amount of the salts adsorbed by the bottom sediments of this river was determined. Key words: water objects, bottom sediments, ion content, ratio of anionsand cations, salt content, chemical oxygen demand (COD) biochemical oxygen demand (BOD5).