2023

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Microbiological analysis of coliform bacteria in drinking water from public filtration plants and restaurants in johar town, lahore
(UMT Lahore, 2023-10-05) ARIBA NASIR; RANA NABEEL
The purpose of the current study was to detect fecal coliform and total coliform in public filtration plants (PFP) and restaurant’s tap water from different areas of Johar Town, Lahore. A total of n=10 water samples were collected including 5 from PFP and 5 from restaurants. Samples were collected from different areas of Johar Town using standard microbiological procedures and were examined for colony forming unit/ml and most probable number of bacteria. The presence of fecal coliform was not detected from both types of water resources. Results showed that 6 out of 10 samples were positive for coliform bacteria including 2 from public filtration plants and the remaining 4 from tap water of restaurants. High MPN value was observed in sample number 6 of restaurant water that was much higher as compared to the value set by the microbial standards of drinking water which is <50/100ml for total coliform and <0.0/100ml for fecal coliform. Our research concluded that restaurant water was more contaminated as compared to public filtration plant water.