Estimation of metal content and bacteria in drinking water
Abstract
Metals reach drinking water through various ways, and at certain concentrations they are toxic to the body. In addition to anemia, cancer, kidney problems, these are hepatotoxic. Microorganisms are an indicator for the degree of potability of water. Their presence can lead to gastrointestinal disorders.
Taking these shortcomings into account, in this paper the bacterial load after 24 hours of incubation on nutrient agar was evaluated and the presence of contaminating bacteria, considered dangerous for the human body, was analyzed. Several special differential media were used to highlight them. Microbiological analysis was performed on water from ten wells. The water that raised microbiological problems was also chemically analyzed. Thus, in addition to the content of sodium (Na) and calcium (Ca), the content of metals in four wells was also monitored. Copper (Cu), cadmium (Cd) and lead (Pb) were absent from the four wells, but the concentration of the other metals varied. Also, the bacterial load varied depending on the pollution sources. In some wells, bacteria with a risk for the consumer have been identified.
References
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