A Study on the Physicochemical and Bacteriological Analysis of Sewage Water from Coastal Karnataka, India
Anusha Hoskere Chandrashekhara, Sohan R Bangera, Vignesh Shetty, Suganthi M Devadas, Poornima Bhagavath, Mamatha Ballal
Antimicrobial resistance, Bacterial isolation, Chloride, Hardness of water, pH value, Sewage water
Citation Information :
Chandrashekhara AH, Bangera SR, Shetty V, Devadas SM, Bhagavath P, Ballal M. A Study on the Physicochemical and Bacteriological Analysis of Sewage Water from Coastal Karnataka, India. J Gastrointest Infect 2019; 9 (1):10-14.
Background and objectives: Water, the elixir of life, gets polluted by fecal contaminants, household wastes, and industrial effluents into sewage water and acts as a vehicle in the transmission of human diseases associated with microorganisms. The present study was carried out to isolate and identify the pathogenic microorganisms along with their antimicrobial resistance pattern and also to chemically analyze the sewage water sources of Udupi district.
Materials and methods: The 12 sewage water samples were collected from different localities and subjected to bacterial isolation, identification, and antimicrobial susceptibility testing (AST). The chemical analysis of pH value, total hardness, and amount of chloride present in the samples was determined.
Results: A total of 26 organisms were isolated which consisted of waterborne pathogens, Vibrio alginolyticus (V. alginolyticus) (n = 2) and Aeromonas sobria (A. sobria) (n = 2) along with the environmental pathogens (n = 22). A. sobria showed resistance to cefotaxime and the other isolates were susceptible to the antimicrobial drug tested. The pH ranged from 5.7 to 7.5. Ten samples were considered as hard, and in two samples, the chloride content was above normal.
Conclusion: Contamination of groundwater with the sewage water poses a threat to human health. Hence, treating the sewage water in an appropriate sewage treatment plant (STP) is recommended and the need of the hour.
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