scholarly journals Studies on Plankton Diversity of Ashok Sagar Lake in Telangana

2019 ◽  
pp. 353-357
Author(s):  
N. Naga Sameera ◽  
M. Aruna
Keyword(s):  
Drinking Water ◽  
Species Diversity ◽  
Water Samples ◽  
Fish Culture ◽  
Human Consumption ◽  
Diversity Pattern ◽  
Planktonic Algae ◽  
Freshwater Bodies ◽  
Binocular Microscope ◽  
Plankton Diversity

The present study was undertaken to study the diversity of Phytoplankton of freshwater bodies in Nizamabad District and after survey Ashok Sagar lake was selected. The present work was carried out during October, 2013 to September, 2014. Ashok Sagar lake is main source of drinking water for Nizamabad and surrounding villages, It also used for agriculture and support fish culture. All the collected water samples were preserved in 4% formalin and were observed under binocular microscope for identification. Mainly four groups of planktonic algae were recorded in Ashok Sagar lake. They were Chlorophyceae, Cyanophyceae, Euglenophyceae and Bacillariophyceae. The species diversity pattern was more or less uniform throughout the study period in lake, indicating the oligotrophic nature and it is useful for human consumption.

scholarly journals Comparative Analysis of Physico-Chemical Parameters of Borehole, Pond and Well Water in Kashere Metropolis

2017 ◽  
Vol 2 (6) ◽  
pp. 42
Author(s):  
Abdulkadir A. Gidado ◽  
Ibrahim Halliru ◽  
Christiana Anawuese Kendeson ◽  
Yusuf Abdullahi
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Standard Procedure ◽  
Human Consumption ◽  
Chemical Parameters ◽  
Quality Of Water ◽  
Major Cations ◽  
Physico Chemical ◽  
High Turbidity

In a bid to ascertain the quality of water for human consumption in Kashere Metropolis, essential physico-chemical parameters were evaluated on samples of drinking water obtained from boreholes, pond and wells located at densely populated areas, labelled as: Kashere cattle market Pond, KP; Kashere cottage Hospital Borehole, HB; Kashere Market Borehole, MB; Federal University, Kashere (FUK) campus Borehole, CB; Kashere cottage Hospital Well, HW; Kashere Market Well, MW and FUK campus Well, CW. Standard procedure for the determination of chemical and physical characteristics of the water samples were used. The results of the investigated parameters in the samples were as follows: ρH 6.61‒7.96, Turbidity 0.0‒2568 FTU, Electrical Conductivity 60.5‒1151 Mhocm-1, Total Dissolved Solids (TDS) 25.9‒518.0 mgL-1, Ca 0.0033‒0.5446 ppm, Mg 0.0793‒1.2215 ppm, Cd 0.0010‒0.0030 ppm, Zn 0.0024‒0.l054 ppm, Pb 0.0002‒0.0026 ppm and Fe 0.0044‒0.5649 ppm. Except for the concentration of Fe (in CB; 0.5649 ppm), all the analyzed minor and major cations in the water samples were in very low concentration and below the permissible limits of WHO standard guidelines values for drinking water.  It is recommended that, water from the pond should be properly treated before consumption due to its high turbidity.  Also periodic assessment of the quality of drinking water from these water sources should be conducted, to ascertain that they are not contaminated by either or both organic and inorganic pollutants.

scholarly journals Physico-Chemical Quality of Drinking Water in the South of Algeria (Case of El-Oued Region) Study of Excess Minerals

2013 ◽  
Vol 16 ◽  
pp. 38-43 ◽  
Author(s):  
Ammar Zobeidi ◽  
Leila Moussaoui
Keyword(s):  
Drinking Water ◽  
Calcium Oxalate ◽  
Water Samples ◽  
Urinary Calculi ◽  
Human Consumption ◽  
Chemical Quality ◽  
Sulfate Ions ◽  
Physicochemical Composition ◽  
Physico Chemical

The Aim of this Study was to Determine the Physicochemical Composition of Water Intended for Human Consumption in Several Regions of El-Oued - Algeria. Excess Minerals in Drinking Water, Including Magnesium, Calcium, Sulfates, Chloride and Fluorides Play a Fundamental Role in the Prevention of Urinary Calculi, which are Formed Mainly from Calcium Oxalate. the Results Revealed that Wholes Water Samples are Analyzed Magnesium ([Mg 2+] > 50 Mg/L). the Rate of Sulfate Ions Average 638 Mg/l, Exceeding the Maximum Allowable Concentration (MAC) Recommended by WHO ([SO42ˉ] > 250 Mg / L). in Addition, 85% had Excess Fluoride [Fˉ] > 0.85 Mg/L, and 100% are Calcium, the Rate of Ca2+ is Greater than 150 Mg/L.

scholarly journals Physico-Chemical Quality Assessment of Various Bottled Commercial Water Brands in Okada Town, Edo State, Nigeria

2021 ◽  
pp. 1-8
Author(s):  
F. W. Ngubi ◽  
I. Eiroboyi
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Quality Parameters ◽  
Bottled Water ◽  
World Health ◽  
Total Hardness ◽  
Human Consumption ◽  
Chemical Quality ◽  
Physico Chemical ◽  
Health Organization

In this study, Physico-chemical assessment of some commercial drinking water sold in bottles in Okada Town was evaluated to ascertain their compliance with World Health Organization (WHO) and Nigerian Industrial Standard (NIS): Nigerian Standard for Drinking Water Quality threshold limits using standard analytical methods. Seven different bottled water samples obtained from different manufacturers labelled BWA to BWG were analyzed physically and chemically. Physical examination of the samples showed that they were odourless, colourless, and tasteless. Chemical quality parameters examined were pH, Chloride (Cl-), total hardness (TS), Phosphate (PHO3-), Nitrate (NO3-), Sulphate (SO42-), Iron (Fe), Potassium (K), Sodium (Na), Manganese (Mn), Zinc (Zn), total dissolved solids (TDS), conductivity, turbidity, and total suspended solids (TSS). The pH values of 57.1% of the water samples (BWA, BWB, BWC, BWE & BWF) were within the standards. The remaining chemical quality parameters (Cl-, TS, PHO3-, NO3-, Sulphate SO42-, Iron Fe, K, NA, Mn, Zn, TDS, Conductivity, turbidity, and TSS) of the branded bottled water samples were within the standards for clean and safe drinking. Therefore, they were considered safe and fit for human consumption. 

scholarly journals Organoleptic Analysis of Drinking Water Using an Electronic Tongue Based on Electrochemical Microsensors

Sensors ◽  
2019 ◽  
Vol 19 (6) ◽  
pp. 1435 ◽  
Author(s):  
Manuel Gutiérrez-Capitán ◽  
Marta Brull-Fontserè ◽  
Cecilia Jiménez-Jorquera
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Field Effect Transistors ◽  
Electronic Tongue ◽  
Quality Criteria ◽  
Human Consumption ◽  
Chemical Information ◽  
Least Squares Regression ◽  
Conductivity Sensor ◽  
Organoleptic Characteristics

The standards that establish water’s quality criteria for human consumption include organoleptic analysis. These analyses are performed by taste panels that are not available to all water supply companies with the required frequency. In this work, we propose the use of an electronic tongue to perform organoleptic tests in drinking water. The aim is to automate the whole process of these tests, making them more economical, simple, and accessible. The system is composed by an array of electrochemical microsensors and chemometric tools for multivariable processing to extract the useful chemical information. The array of sensors is composed of six Ion-Sensitive Field Effect Transistors (ISFET)-based sensors, one conductivity sensor, one redox potential sensor, and two amperometric electrodes, one gold microelectrode for chlorine detection, and one nanocomposite planar electrode for sensing electrochemical oxygen demand. A previous study addressed to classify water samples according to taste/smell descriptors (sweet, acidic, salty, bitter, medicinal, chlorinous, mouldy, and earthy) was performed. A second study comparing the results of two organoleptic tests (hedonic evaluation and ranking test) with the electronic tongue, using Partial Least Squares regression, was conducted. The results show that the proposed electronic tongue is capable of analyzing water samples according to their organoleptic characteristics, which can be used as an alternative method to the taste panel.

scholarly journals Microbiological Quality of Street Vended Drinking Water in Dhaka City and Screening for Antibiotics Resistance of Isolated Salmonella spp and Pseudomonas spp.

2014 ◽  
Vol 6 (2) ◽  
pp. 359-371
Author(s):  
S. Ahmed ◽  
K. R. Mahbub ◽  
M. M. Ahmed ◽  
M. Rahman ◽  
M. M. Hoque
Keyword(s):  
Drug Resistance ◽  
Drinking Water ◽  
Water Samples ◽  
Biochemical Characterization ◽  
Microbiological Quality ◽  
Antibiotics Resistance ◽  
Human Consumption ◽  
Dhaka City ◽  
Street Vendors

The present study was aimed to assess the microbiological quality of street vended drinking water of Dhaka city. The water samples were collected from street vendors in different areas of Dhaka city. All of the 30 samples were found having microorganisms higher than WHO limits for drinking water. Four (13.34%) samples were confirmed to have Salmonella contamination and twenty (66.67%) samples were contaminated with Pseudomonas. Based on morphological and biochemical characterization Salmonella isolates were identified as Salmonella choleraesuis and Salmonella bongori. Among the isolates of Pseudomonas, fourteen were identified as Pseudomonas alcaligens and six were as Pseudomonas aeruginosa. During antibiogram for Salmonella, 100% of the isolates were found resistant to Penicillin. Chloramphenicol, doxycycline, Gentamycin, Neomycin were sensitive to all of the isolates. The Pseudomonas isolates showed a significant drug resistance to Penicillin (100%), Ampicillin (95%), Amoxicillin (95%) and Nalidixic acid (85%). The present study demonstrates that drinking water samples from street vendors in Dhaka city are not complying with microbiological specifications of WHO and indicates that street vending drinking water in Dhaka city may not be safe for human consumption and also shows that these are the potential sources of drug resistance Salmonella and Pseudomonas.  Keywords: Street vended drinking water; Antibiotic resistance; Salmonella; Pseudomonas. © 2014 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved. doi: http://dx.doi.org/10.3329/jsr.v6i2.17640 J. Sci. Res. 6 (2), 359-371 (2014)

scholarly journals Occurrence of Escherichia coli and faecal coliforms in drinking water at source and household point-of-use in Rohingya camps, Bangladesh

Gut Pathogens ◽  
2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Zahid Hayat Mahmud ◽  
Md Shafiqul Islam ◽  
Khan Mohammad Imran ◽  
Syed Adnan Ibna Hakim ◽  
Martin Worth ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Drinking Water ◽  
Water Samples ◽  
Human Consumption ◽  
Risk Category ◽  
Human Beings ◽  
Faecal Coliforms ◽  
E Coli ◽  
Point Of Use ◽  
Quality Of Water

Abstract Background Safe water is essential for life but unsafe for human consumption if it is contaminated with pathogenic microorganisms. An acceptable quality of water supply (adequate, safe and accessible) must be ensured to all human beings for a healthy life. Methods We collected and analyzed a total of 12,650 drinking water samples, for the presence of Escherichia coli and faecal coliforms, from a large habitation of the displaced Rohingya population comprising of about 1.16 million people living within 4 km2. Results We found that 28% (n = 893) water samples derived from tubewells were contaminated with faecal coliforms and 10.5% (n = 333) were contaminated with E. coli; also, 73.96% (n = 4644) samples from stored household sources (at point of use—POU) were found contaminated with faecal coliforms while 34.7% (n = 2179) were contaminated with E. coli. It was observed that a higher percentage of POU samples fall in the highest risk category than that of their corresponding sources. Conclusions From our findings, it appears that secondary contamination could be a function of very high population density and could possibly occur during collection, transportation, and storage of water due to lack of knowledge of personal and domestic hygiene. Hence, awareness campaign is necessary, and the contaminated sources should be replaced. Further, the POU water should be treated by a suitable method.

scholarly journals Bacteriological and physico-chemical assessment of untreated drinking water used by residents in Ofougbene- Izon-Borotu Community, Delta State

2020 ◽  
Vol 5 (2) ◽  
pp. 048-060
Author(s):  
Otajevwo Dafinone Festus ◽  
Dio Princess Tamaramiene
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Ground Water ◽  
State Government ◽  
Water Samples ◽  
Bacterial Load ◽  
Most Probable Number ◽  
Human Consumption ◽  
Probable Number ◽  
The People

This study was aimed at assessing the bacteriological and physio-chemical qualities of the ground well water which is the only available drinking water to residents of Ofougbene community of Burutu Local Government Area, in order to check it's fitness for drinking and evaluate the awareness of the people about dangers of drinking untreated water. Seven water samples coded Station1-Station 7 were obtained from seven different ground wells in the study area. Bacteriological assessment was done by Most Probable Number (MPN) technique while physical, chemical and organic analyses of the water samples were carried out by known standard methods. Bacterial organisms isolated were Escherichia coli, Klebsiella pneumoniae, Enterobacter aerogenes and Staphylococcus epidermidis. All ground water samples contained total aerobic bacterial load ranging from 1.8 x 103 to 7.0 x 103 CFU/ml. The mean ± standard deviation values of pH, electrical conductivity, color, turbidity, Total Dissolved Solids, Suspended Solids, alkalinity, chloride, hardness, phosphates, nitrates, sulphates, calcium, magnesium, Dissolved Oxygen and Biological Oxygen Demand were: 5.8±16.43, 51.4±27.0uS/cm, 22.4±12.32mg/l, 11.8±5.14mg/l, 28.4±15.10mg/l, 3.8±3.80mg/l, 15.4±12.49mg/l, 21.12±0.02mg/l, 53.3±32.72mg/l, 0.20±0.04mg/l, 2.77±0.27mg/l, 9.28±3.60mg/l, 11.9±12.10mg/l, 1.7±0.51mg/l, 5.9±0.58mg/l and 3.04±0.51mg/l respectively for all the water samples assessed. Whereas water quality status for all samples was unsatisfactory, water quality concern was high. Compared to reference values provided by Standard Organization of Nigeria (SON) and presence of pathogens, we conclude that the ground water used by the people of the community is unfit for human consumption. This is for the immediate attention of the Public Health Authorities of both the LGA concerned and the Delta State Government.

scholarly journals Bacteriological Analysis of Drinking Water along the Karakorum Highway (KKH)

2016 ◽  
Vol 9 (4) ◽  
Author(s):  
Mohammad Akhlaque ◽  
Naseer Ahmad Chaudhry ◽  
Farakh A Khan
Keyword(s):  
Drinking Water ◽  
River Water ◽  
Water Samples ◽  
Distribution System ◽  
Human Consumption ◽  
Residential Areas ◽  
Bacteriological Analysis ◽  
Northern Areas ◽  
Strip Test

The present study was undertaken to asses the bacteriological quality of drinking water in Northern Areas of Pakistan. This study was comprised of total 32 water samples taken from river, water in distribution system and spring from different areas along the Karakorum Highway (KKH) from Thahkot to Khunjrab pass. Chlorination may affect the results, so its status was enquired from the local peoples and found that none of the 32 sample points in the residential areas were chlorinated. All the water samples were tested for contamination by H2S strip Test. This study revealed that, according to WHO standard all types of water supplies along KKH are unfit for human consumption.

scholarly journals Enumeration of total and Feacal coliform bacteria of some borehole water in Gombe, Gombe State, Nigeria

2020 ◽  
Vol 12 (1) ◽  
pp. 221-226
Author(s):  
Nuru Adamu Garkuwa ◽  
Sa’adatu Said Mustapha ◽  
Sani Aliyu Ibrahim ◽  
Muhammad Yusha’u ◽  
Mansur Abdulrasheed ◽  
...  
Keyword(s):  
Drinking Water ◽  
Urban Communities ◽  
Water Samples ◽  
Total Coliform ◽  
Coliform Bacteria ◽  
Human Consumption ◽  
Culture Methods ◽  
Need For Treatment ◽  
Standard Culture ◽  
Borehole Water

Inadequate provision of potable drinking water in relation to teaming population is forcing most of the urban communities to drink untreated water obtained from traditional boreholes. Hence, the need to assess the portability of drinking water. In this research, boreholes water samples collected within Gombe city were investigated bacteriologically using multiple tube fermentation and pour plate methods to examine feacal coliform and coliform bacterial counts respectively; bacterial isolation was conducted using standard culture methods.  Identification of the bacterial Isolates were carried out by macroscopic, microscopic and biochemical examinations. Total coliform bacteria ranges from <3 to 11 MPN/100 ml and 1 to 3 MPN/100ml for faecal coliform. The borehole water samples from studied areas had high counts of faecal coliforms (Escherichia coli), and other pathogens like Entrobacter and Salmonella. The findings showed that all the borehole water analysed were not suitable for human consumption and may pose a serious threat to the health of consumers and therefore, there is need for treatment of these borehole waters by the borehole proprietors and also by simple treatment methods such as boiling, filtration before drinking and agitation by the consumers.    Keywords: Borehole water, Quality, Isolation, Identification, Coliform bacteria

scholarly journals Drinking Water Safety in Rural Areas of Zagreb County in 2013

2014 ◽  
Vol 10 (3-4) ◽  
Author(s):  
Marijan Benić ◽  
Bogoljub Antonić ◽  
Branislav Mihajlović
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Water Samples ◽  
Rural Areas ◽  
Chloride Content ◽  
Human Consumption ◽  
Water Safety ◽  
Chemical Parameters ◽  
Drinking Water Safety ◽  
Physical And Chemical

The paper analyzes the water supply in the rural part of Zagreb County, which is based mainly on individual water supply sources, i.e. dug or drilled wells and Norton pumps.The aim of the paper is to investigate whether there is a difference in health quality of drinking water taken from the wells and taken from the Norton pumps. The wells are supplied from an aquifer that lies at a depth of 12 to 14 meters, while the Norton pumps reach a depth of 6 and 7 meters.The analysis of water samples taken from the water supply sources revealed that the water does not basically comply with the Ordinance on the parameters of assessment and the methods for the analysis of water intended for human consumption, the Act on Water Intended for Human Consumption. Organoleptic indicators such as color and clarity do not satisfy, while the physical and chemical parameters such as pH and conductivity satisfy the criteria set for both water supply sources. Of all the chemical parameters only the chloride content was within the permitted limits, while the oxidativity, the content of ammonium, nitrite and nitrate were above the allowed limits in water samples taken from the wells and Norton pumps. Microbiological indicators in the analyzed samples, i.e. the number of colonies at 37 ° C and 22 ° C, as well as total coliforms also do not satisfy the requirements of the Ordinance. In order to use the water for drinking it is necessary to perform the conditioning and disinfection of wells, while with the Norton pumps these interventions are almost impossible to perform.

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