Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIII
Written by Aurica Breica BOROZAN, Sorina POPESCU, Delia Gabriela DUMBRAVĂ, Diana Nicoleta RABA, Mirela Viorica POPA, Corina Dana MIȘCĂ, Carmen Daniela PETCU, Despina Maria BORDEAN, Camelia MOLDOVAN
The quality of drinking water is a challenge for consumers and scientists in our century. The bacterial diseases and deaths recorded in recent years, as a result of the consumption of fecal-contaminated water, are reasons for concern and microbiological evaluation of water in all populated areas on Earth. In this paper, microbiological and chemical analyses were performed for ten samples of water from wells drilled in households in the perimeter of Timis County, Romania. The analyses included the range of microbial groups and species considered indicators of water quality. Their isolation and identification were carried out on specific nutrient media and were completed with determinations of nitrates, phosphates and pH. According to the analysis reports, faecaligenous enterococci were not identified, instead clostridia were observed in most of the samples and a contamination with Escherichia coli. The microbial load is high in the majority of samples. The chemical analyses indicated the presence of phosphates and nitrates in most of the evaluated samples. The nitrates in the analyzed water samples did not exceed the value of 50 mgL-1stipulated in the standard. The obtained results suggest the presence of some sources of faecal contamination and require taking measures to treat the waters in question.
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