ANALYSIS OF THE HYDROCHEMICAL COMPOSITION OF SALT BRINS OF LAKE INDER

Аннотация

The article presents an analysis of the hydrochemical composition of the salt brines of the Inder Lake,
which consists of three sources Tuzdybulak, Aschybulak and Telepbulak. The analysis shows that the chloride
content on Tuzdybulak ranges from 19538 mg/l to 36868 mg/l during the research period from 1961 to 2017, which
exceeds the maximum permissible concentration by 55,8-105.3 times; on Aschybulak from 12880 mg/l to 28080
mg/l, the excess is 36.8-80.2 times; on Telepbulak from 11900 mg/l to 26000 mg/l with an excess of 34-74.3 times.
Analysis of sodium showed that on Tuzdybulak it is 10,877 mg/l -28,680 mg/l with an excess of the maximum
permissible concentration of 54-143.4 times; on Aschybulak from 8430 mg/l to 21697 mg/l with an excess of 42.2-
108.5 times; on Telepbulak from 8010 mg/l to 18280 mg/l with an excess of 40.05-91.4 times. This analysis shows
that these brines are of the sodium chloride type, while the most saline in terms of sodium and chloride is the
Tuzdybulak source. According to the content of calcium cations at the source, Tuzdybulak varies from 860 mg/l to
1499 mg/l, which is 573.3-999.3 times the maximum permissible concentration; at the source of Aschybulak from
930 mg/l to 1325 mg/l, which is 620-883.3 times higher than the MPC; at the source of Telepbulak from 1000 mg/l
to 1980 mg/l, which is 666.7-1320 times higher than the MPC. According to sulfate anions at the Tuzdybulak source,
from 4096 mg/l to 20077.85 mg/l, which is 8.2–40.2 times higher than the MPC; at the Aschybulak source, from
3370 mg/l to 10841.54 mg / l, which is 6.74-21.6 times higher than the MPC; at the source of Telepbulak from 3360
mg/l to 50816.14 mg/l, which is 6.72-101.6 times higher than the MPC. According to the sulphate-calcium type, the
highest content is typical for the Telepbulak source. The analysis of mineralization and solids shows that in salt
solutions of Lake Inder they exceed: at the source of Tuzdybulak from 22.3 to 50.9 times; at the source of
Aschybulak from 17.8 to 38.5 times; at the source Telepbulak from 17.1 to 33.1 times, which shows that the brines
of Lake Inder belong to brine mineral waters