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Micro-Biological Contamination of Drinking Water in Western Delta of West Godavari District, Andhra Pradesh, India

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Author Affiliations

  • 1Water and Environment Technology (WET) Research Centre, Dept. of Civil Engineering, S.R.K.R. Engineering College, China Amiram, Bhimavaram– 534204, W.G. Dist. A.P., India
  • 2Water and Environment Technology (WET) Research Centre, Dept. of Civil Engineering, S.R.K.R. Engineering College, China Amiram, Bhimavaram– 534204, W.G. Dist. A.P., India
  • 3Water and Environment Technology (WET) Research Centre, Dept. of Civil Engineering, S.R.K.R. Engineering College, China Amiram, Bhimavaram– 534204, W.G. Dist. A.P., India
  • 4Water and Environment Technology (WET) Research Centre, Dept. of Civil Engineering, S.R.K.R. Engineering College, China Amiram, Bhimavaram– 534204, W.G. Dist. A.P., India
  • 5Water and Environment Technology (WET) Research Centre, Dept. of Civil Engineering, S.R.K.R. Engineering College, China Amiram, Bhimavaram– 534204, W.G. Dist. A.P., India

Int. Res. J. Environment Sci., Volume 5, Issue (10), Pages 1-5, October,22 (2016)

Abstract

Drinking water contamination with micro-organisms is a big problem to the people. Most of the diseases are due to water contamination. The major health problem in developing countries is the diarrhea. Other health problems are typhoid fever, cholera and bacillary dysentery. The main contaminant in the drinking water is fecal matter of human and other animals. Fecal indicator bacteria are measured to know the biological contamination of drinking water. Total coliform are the standard by which microbial contamination is measured. Some of the microorganisms present in the water are Escherichia Coli, Cryptosporidium, Anabaena, Rotifers, Copepods, Vibrio, Salmonella, Shigella, Helminthes etc. which are responsible for various health problems. Their cysts and eggs are also causing various health disorders. Chlorine is generally added to drinking water as a disinfectant to kill the pathogenic bacteria. Improper treatment, insufficient dosage and lack of proper maintenance of distribution pipes in many villages and towns make the public water unfit for drinking. In this study to know the presence of microbiological contamination of treated drinking water; the parameters measured are- Most Probable Number (MPN), Total Fecal Coli form (TFC) and Escherichia Coli (E.Coli) of water supplied by public and private systems to consumers. The results of the present study shows that only 23% of the Public treated drinking water samples (Panchayat and Municipalities) are fit for drinking with zero MPN values. Even most of the water samples supplied by private organizations including Non-governmental organizations are also not very safe and only 28% are found to be free from pathogenic bacteria. The mineral water supplied by various organizations after processing through Reverse Osmosis, UV light treatment, Ozonization etc., is also found to be unable to meet the national or international standards in terms of pathogenic bacteria. So resource management, proper treatment and good maintenance of piping system, above all a strong commitment to supply potable water to public are need of the hour. One of the major challenges of the twenty first century is to provide safe drinking water for all.

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