GROUNDWATER QUALITY IN BIRATNAGR OF MORANG DISTRICT, NEPAL

A study was conducted to assess the groundwater quality in Biratnagar of Morang district of Nepal on the basis of some important physicochemical and microbiological analysis. During the study, the elevated value of turbidity ranged from 2.1±2.80 NTU (ward no. 8) to 81.46±44.28 NTU (ward no. 10), free-carbondioxide (FCO2) ranged from 12±2.45 mg /L (ward no. 21) to 17.2±3.03 mg/L (ward no. 8), arsenic ranged from nil (ward no. 3) to 0.17±0.21 mg /L (ward no. 1), iron (Fe) ranged from 0.45 mg/L (ward no. 7) to 3.67 mg/L (ward no. 4), manganese (Mn), ranged from 0.45 mg/L (ward no. 7) to 5.99 mg/L (ward no. 16) and fecal coliform bacteria were found positive in 10 wards (ward nos. 2, 3, 4, 9, 10, 11,14,15,20 and 21) constituting 45.45% of the total samples ranging from 3 to 25 MPN/100 ml . Out of the total analyzed samples, turbidity in 78 samples (70.90%), FCO2, Fe, and Mn in all samples (100%) and arsenic in 37 water samples (33.64 %) were crossed the permissible limit of WHO guideline. However, the value of pH, EC, DO, TH, PO4-P, NO3-N, Cd, Zn, and Pb were below the WHO guideline value. The status of fluoride was below detectable level in all the analyzed groundwater samples.

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Analysis of Fecal Coliform Bacteria in Spring Creek above Sheridan Lake in the Black Hills of South Dakota

Impacts of Global Climate Change ◽

10.1061/40792(173)155 ◽

2005 ◽

Author(s):

Patrick Schwickerath ◽

Thomas Fontaine ◽

Scott Kenner

Keyword(s):

South Dakota ◽

Fecal Coliform ◽

Black Hills ◽

Coliform Bacteria ◽

Fecal Coliform Bacteria

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Analysis of Coliform and Colifecal Total Pollution Test on Various Types of Drinking Water Using the MPN (Most Probable Number) Method

Serambi Journal of Agricultural Technology ◽

10.32672/sjat.v2i2.2416 ◽

2020 ◽

Vol 2 (2) ◽

Author(s):

Wanda Aulya ◽

Fadhliani Fadhliani ◽

Vivi Mardina

Keyword(s):

Drinking Water ◽

Fecal Coliform ◽

Pathogenic Bacteria ◽

Microbiological Quality ◽

Coliform Bacteria ◽

Most Probable Number ◽

Inspection Method ◽

Sample Number ◽

Probable Number ◽

Fecal Coliform Bacteria

Water is the main source for life and also the most severe substance caused by pollution. The mandatory parameters for determining microbiological quality of drinking water are total non-fecal Coliform bacteria and Coliform fecal (Escherichia coli). Coliform bacteria are a group of microorganisms commonly used as indicators, where these bacteria can be a signal to determine whether a water source has been contaminated by bacteria or not, while fecal Coliform bacteria are indicator bacteria polluting pathogenic bacteria originating from human feces and warm-blooded animals (mammals) . The water inspection method in this study uses the MPN (Most Probable Number) method which consists of 3 tests, namely, the presumption test, the affirmation test, and the reinforcement test. The results showed that of 15 drinking water samples 8 samples were tested positive for Coliform bacteria with the highest total bacterial value of sample number 1, 15 (210/100 ml), while 7 other samples were negative. From 8 positive Coliform samples only 1 sample was stated to be negative fecal Coliform bacteria and 7 other samples were positive for Coliform fecal bacteria with the highest total bacterial value of sample number 1 (210/100 ml).

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