Evaluation of drinking water pollution by bacteriological analysis of water used for drinking purpose

2019 ◽  
Author(s):  
N. W. Bagalkar ◽  
M. G. Ingale
Keyword(s):  
Water Pollution ◽  
Drinking Water ◽  
Bacteriological Analysis ◽  
Drinking Purpose

The detection of various bacteria indicative of water pollution by a presence–absence (P–A) procedure

1969 ◽  
Vol 15 (7) ◽  
pp. 771-780 ◽  
Author(s):  
J. A. Clark
Keyword(s):  
Water Pollution ◽  
Drinking Water ◽  
Membrane Filter ◽  
Fecal Coliforms ◽  
Aeromonas Species ◽  
Fecal Streptococci ◽  
Confirmatory Tests ◽  
Green Fluorescent ◽  
Bacterial Groups ◽  
Drinking Water Samples

Results of a previously described presence–absence (P–A) test were compared with those of the membrane filter (MF) technique for detecting fecal coliforms, coliforms, and anaerogenic coliforms in municipal drinking water samples. The P–A test allowed more frequent isolation of these organisms and, when supplemented by simple confirmatory tests, could also indicate the presence of fecal streptococci, green fluorescent pseudomonads, Aeromonas species, and Clostridium perfringens. In the absence of coliform detection, the occurrence of these other bacterial groups could give warning of unusual fecal or organic pollution.A comparison of coliform and non-coliform isolates from MF and P–A tests indicated that similar organisms were detected by both methods. The finding of false-positive "sheen" colonies was attributable to the presence of ethyl alcohol in the MF Endo medium. Although organisms giving rise to such colonies were non-coliforms, their presence was suggestive of inadequate water treatment.

Photocatalysis by Nanoparticles of Titanium Dioxide for Drinking Water Purification: A Conceptual and State-of-Art Review

2013 ◽  
Vol 764 ◽  
pp. 130-150 ◽  
Author(s):  
Jatinder Kumar ◽  
Ajay Bansal
Keyword(s):  
Water Pollution ◽  
Drinking Water ◽  
Titanium Dioxide ◽  
Water Purification ◽  
Advanced Oxidation Processes ◽  
New Technologies ◽  
Oxidation Processes ◽  
Titanium Dioxide Photocatalysis ◽  
Drinking Water Purification ◽  
State Of Art

To overcome the water pollution problems, and to meet stringent environmental regulations, scientist and researchers have been focusing on the development of new water purification processes. One such group of new technologies is advanced oxidation processes (AOPs). Among the AOPs, titanium dioxide photocatalysis has been widely studied on lab scale by the researchers for decontamination of drinking water. In the present chapter, a conceptual as well as state-of-art review of titanium dioxide photocatalysis for water purification has been discussed.

scholarly journals NITRATE CONTENT OF DRINKING WATER AND THEIR EFFECTS ON POPULATION HEALTH

10.23856/3715 ◽  
2020 ◽  
Vol 37 (6) ◽  
pp. 148-156
Author(s):  
Olena Stadnichuk ◽  
Liliia Kropyvnytska ◽  
Ivan Martyniuk ◽  
Mykola Platonov ◽  
Mykola Kucher
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Circulatory System ◽  
Pollution Index ◽  
Nitrate Group ◽  
Nitrate Content ◽  
Nitrogen Compounds ◽  
Water Pollution Index

The problems of drinking water quality have been considered in some settlements of the Turkivskiy district of Lviv region, in particular concerning the content of Nitrogen compounds. 20 sources of decentralized water supply were investigated. It was found that the main hydrochemical indicators of water samples mainly met the requirements for the degree of contamination of hygienic classification of water bodies. At the same time, analyzing the samples for the presence of nitrogen compounds, it was found that in the tested samples: the content of nitrate ions fluctuated within 0,02 - 016 mg/dm3 (average annual values did not exceed the permissible value); the content of ammonium ions is in the range of 0.5-2.8 mg/dm3, which did not significantly exceed the maximum permissible value. At the time, analysis for NO3- showed an excess of acceptable values in almost all samples by 1.3 у 4.2 times. It was found that the amount of nitrates decreased with the transition from the alluvial aquifers to the indigenous ones, where the average content was 108.9 mg/dm3 and 86.8 mg/dm3, respectively. This is probably due to better protection of the bedrock from surface contamination, greater capacity of the corresponding aquifers and their deeper occurrence. According to the average value of the water pollution index for the nitrate group, the studied objects of decentralized water supply belong to the second class ‒ moderately contaminated. The correlation between the water pollution index by nitrate group and the population morbidity is calculated to be direct and sufficiently high (0.73). The most associated indicators of water quality are diseases of the circulatory system, blood and hematopoietic organs, digestive organs, endocrine and urogenital systems.

scholarly journals Problems of Bacteriological Pollution in Water Wells in Wadi Hadramout Water Project

2001 ◽  
Vol 6 (2) ◽  
pp. 85
Author(s):  
Salem M. Bin Qadhi ◽  
Saeed Y. Bashir ◽  
Taha O. Assaggaf
Keyword(s):  
Water Pollution ◽  
Drinking Water ◽  
Future Generations ◽  
Short Term ◽  
Water Project ◽  
Water Wells ◽  
Small Project ◽  
Quality Water

This paper presents an existing problem of drinking water pollution for a small project and one of the model projects of drinking water in Yemen, designed to save and preserve good quality water for the present and future generations in the area. The paper gives the details of the project and explains the problem of bacteriological pollution and the steps undertaken to solve the problem. Some of the results for short-term solutions and recommendation for the long-term solutions are also given. 

scholarly journals Health risk assessment of drinking water in correlation with water-related diseasess

2020 ◽  
Vol 12 (1) ◽  
pp. 40-48
Author(s):  
Mihail Kocubovski ◽  
Aleksandra Stambolieva ◽  
Aneta Kostova ◽  
Elena Chibisheva ◽  
Zarko Karadzovski
Keyword(s):  
Drinking Water ◽  
Infectious Diseases ◽  
Water Supply ◽  
Data Access ◽  
Water Supply Systems ◽  
Safe Drinking Water ◽  
Bacteriological Analysis ◽  
Physico Chemical ◽  
The Republic ◽  
City Water

Healthy and safe drinking water in sufficient quantities provided to consumers improves living conditions, raises health culture at a higher level and promotes the environment as a whole. The aim is to see if there is a correlation between irregular water samples with intestinal infectious diseases related to drinking water. Materials and method. The preparation of the Republic Computer Program (1996) for issuing laboratory findings (RCP) from the analyses of samples of drinking water (physico-chemical and bacteriological), in accordance with the methodology for application of ID numbers in the computer system in the Public Health Centers has created the possibility of complete health records of drinking water supply facilities under health surveillance for the territory of the entire Republic. Evaluation has been made of the results of basic physicо-chemical and bacteriological analyses of drinking water in the settlements of the Republic of North Macedonia and the water-related diseases – waterborne intestinal infectious diseases in the period 2014-2018. Results. Drinking water from city water supply in the examined period in terms of physico-chemical analysis ranged 2.9-4.3%, while in relation to bacteriological analysis 0.9-2.6%.. Waterborne intestinal infectious diseases show a decline in their incidence in 2018. Conclusion. The registered data from the physicо-chemical and bacteriological analysis showed that the drinking water from the city water supply systems in the period 2014-2018 was safe. According to the processed data, access to safe drinking water for the population was 97% by 2018, which ranks the country in the group of countries in the world with the highest access to safe drinking water, and there is no significant connection with drinking water related diseases.

scholarly journals Analisis Kadar Klorida Air Sumur Bor Sekitar Tempat Pembuangan Akhir (TPA) II Musi II Palembang dengan Metode Titrasi Argentometri

2019 ◽  
Vol 2 (2) ◽  
pp. 5-9
Author(s):  
Mifta Huljani ◽  
Nur Rahma
Keyword(s):  
Water Pollution ◽  
Drinking Water ◽  
Negative Impact ◽  
Maximum Level ◽  
Clean Water ◽  
Chloride Level ◽  
Titration Method ◽  
Borehole Water ◽  
Community Environments

The community around Tempat Pembuangan Akhir (TPA) II Musi II Kelurahan Karya Jaya still relying on borehole water to fulfill their daily needs. The existence of TPA around these community environments can have a negative impact, including an indication of contamination of borehole water. One of the water pollution that is suspected to occur due to contamination of leachate from TPA is over chloride level in borehole water. The present work aimed at determining chloride level in borehole water in the area around Musi II TPA II Musi II Kelurahan Karya Jaya using Mohr argentometry titration method. The results showed chloride level in borehole water in the area around Musi II TPA II Musi II Kelurahan Karya Jaya is 301.75 mg/L. Based on PerMenKes RI No.492/MENKES/SK/VI/2010 and PerMenKes RI No.416/MENKES/ PER/IX/1990, the maximum level of chloride for drinking water is 250 mg/L, while for clean water is 600 mg/L, so that it can be concluded that borehole water in the area around Musi II TPA II Musi II Kelurahan Karya Jaya can’t be used for primary needs, for example drinking and cooking needs, but borehole water can still be used for secondary needs such as bathing and washing.

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