Isolation and Characterization of Multi Drug Resistant Bacterial Pathogens in Treated Waste Water from Hospital Sewage Treatment Plant

Dr. Sharvari A. Samant


Introduction: Multiple Drug Resistant bacteria are often found in treated waste water from the hospital which leads to transfer of resistance to the bacteria in natural environment. Aims: The present study was aimed to know the spectrum of bacteria in Sewage Treatment Plants and resistance pattern of E. coli  and Enterococci as indicator organisms. Methodology: A total of 120 water samples were processed by standard microbiological procedures. Results: The spectrum of common bacteria isolated from the STPs wereE. coli (18.9%), Klebsiella (16.3%), Pseudomonas(15.7%), Citrobacter (14.8%), Enterococci (12.3%) Micrococci (11.6%)and Staphylococci (11.6%).  All the isolates (100%) were resistant to Ampicillin. More than 75% isolates of E.coliand more than 70% Enterococci were resistant to  more than four antibiotics. Conclusion:The present study highlights the importance of strict governance on functioning of STP and random microbiological testing to protect the environment.


Sewage Treatment Plant, Drug Resistance, E. coli, Enterococci

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