Nature of Inner Asia
Bibliographic description:
, , , , , , HYDROCHEMICAL STUDY OF WATER SUPPLY OF ULAANBAATAR CITY // Nature of Inner Asia. - 2018. №2(7). . - С. 92-100.
Title:
HYDROCHEMICAL STUDY OF WATER SUPPLY OF ULAANBAATAR CITY
Financing:
Codes:
Annotation:
The second industrial source called “Mah kombinat” shows pH 6.14-6.85 and the conductiv- ity (EC) is 54.5-62.4 mS/m. The general hardness is 4.9-6.0 mg-eqv/l and the general miner- alization is classified as SO 2-, Ca2+ and Mg2+ which grades up to 420.4-520.7 mg/l. In addi- tion, in cations the main component is the Ca2+ ion in drinking water of these two sources and SO42- and HCO3 ions are abundant anions. The obtained results meet the requirements of Drinking water standard MNS 0900:2016, any changes of composition depending on the season have not been revealed. Moreover, the analysis of microelements by using ICP-MS facility in drinking water on the way to water supply to the user’s pipeline showed presence of several elemental components and severe radioactive elements, but they don’t exceed the national standards.
Keywords:
Ulaanbaatar city; drinking water; hydrochemical composition.
List of references:
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