Determination of deoxygenation rate of selbe river and its purification study
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Date
2022-05-16
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German Mongolian Institute for Resouce and Technology
Abstract
Mongolian people have a proverb “Water is a wish granting jewel” or “Ус бол чандмань эрдэнэ”, which specifies that Mongolians have been living near to the water sources by cherishing, protecting and worshiping water for the generations. The water resources in Mongolia are about 599 km3/year, which is 0.00004 percentage of the world total water volume (1). Furthermore, rivers, lakes, and swamps are known as surface water, which makes up only 0.26 percent of all fresh water on our planet (2). On the other hand, the total water resources in rivers or streams in Mongolia are estimated at 34.6 km3/year, as of 49% form up in the Arctic Ocean basin; 11 percent to Pacific Ocean basin and 40% belongs to Central Asian closed basin (Figure 1).(3). Additionally, in Mongolia there are total of 29 river basins (Figure 1) including surface and groundwater basins (4).