Abstract
Hydrochemical and sanitary microbiological research of the Elena Hill spring waters in the Nakhunao community of Martvili Municipality was done for the first time.The content of Mg2+, Ca2+, Fe3+, HCO3-, Cl-, I- ions was determined. Relatively simple and quick chemical and physico-chemical methods of good repeatability were selected for determination. Biogenic substances were determined by photometric method.Carbon dioxide, oxygen BOD5 and dry remains were also identified. Sanitary-microbiological studies were performed using the following methods: mesophilic aerobes and facultative anaerobes: МУК, 2.1.4 1184-03, common coliform bacteria − МУК 4.2. 1018-01 and Escherichia coli − 18963-73. Based on the experimental data, it was found that the spring water that being researched is low-mineralized, which is why their reaction is almost neutral. The above-mentioned ionic content in the studied spring waters is within the norm, and in some samples (mesophilic aerobes and facultative anaerobes, common coliform bacteria) are established that microbiological, such a marginal concentration of pollution that is harmless for human health and its use in drinking and agricultural terms is within the norm.
Highlights
Water is the source of life and it is a building material used by all organisms, water brings the necessary substances into the body and takes out everything unnecessary
Oxygen content and BOD5 were determined by iodometric method (titrant 0,01 N Na2S2O3 in an alkaline environment Mn(OH )2 oxidized by oxygen dissolved in water and transferred to a fourvalent manganese compound, which is formed in the presence of excess KI in the acidized solution I2)
A relatively large amount was found in the northern spring water 0.0074 mg / l, and its content is small in the western spring water 0,0016 mg/l
Summary
Water is the source of life and it is a building material used by all organisms, water brings the necessary substances into the body and takes out everything unnecessary. Calcium and magnesium ions are the leading ions in low-mineralized waters. The content of magnesium, calcium and iron in fresh water depends on the type of soil, the season and the time of day or night. If its content exceeds 0.3 mg / l, the water is unsuitable for drinking and household use. The presence of floating substances in the water makes it useless for drinking and household use [1]. Important microorganisms in the formation of the chemical composition of water, use mainly organic substances in the water as nutrients and transform them into minerals, the sanitarymicrobiological research of spring, well and network waters is an interesting thing. As much as underground waters polluted by fecal masses, which are used by humans for various purposes, can cause intestinal infections, damage the urinary tract and genitals, or cause bacteremia, poisoning and much more
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