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 Evaluation of the Quality of Drinking Water and Rivers in the Mantaro Valley, Central Peru

2021 ◽  
Vol 943 (1) ◽  
pp. 012002
Author(s):  
A Aylas-Quispe ◽  
A Campos-Llantoy ◽  
M Perez-Cordova ◽  
C.E. Alvarez-Montalván ◽  
S. Camargo-Hinostroza
Keyword(s):  
Drinking Water ◽  
River Water ◽  
Environmental Quality ◽  
Quality Standards ◽  
Permissible Limit ◽  
Human Consumption ◽  
Ph Values ◽  
Environmental Quality Standards

Abstract The quality of river water is essential for the survival of living beings, whether for agricultural, livestock or human consumption. This study was carried out in the province of Junín, in different districts of Huancayo, the analysis of the samples was carried out in the continental university, from which the data were obtained for comparisons. This investigation revealed that the Chanchas river water has a higher concentration of pollutants during the afternoons since the pH is 8.69 (alkaline), being within the environmental quality standards, however these waters are not recommended for irrigation because it would cause plants do not absorb nutrients properly. Likewise, it was shown that the pH values of the drinking water of the four districts are similar, being 7.36, verifying that it is within the maximum permissible limit and suitable for 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 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)

Minimization of the Disinfection by-Product Precursors in Treated Waters Exposed to Ozone and Chlorine

2014 ◽  
Vol 884-885 ◽  
pp. 91-95
Author(s):  
Shang Chao Yue ◽  
Le Jun Zhao ◽  
Xiu Duo Wang ◽  
Qi Shan Wang ◽  
Feng Hua He
Keyword(s):  
Drinking Water ◽  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Water Supply ◽  
River Water ◽  
Water Samples ◽  
Full Scale ◽  
Ultraviolet Absorbance ◽  
Treatment Processes ◽  
Removal Efficiencies

The objectives of this study were to investigate impact of preoxidation on disinfection by-product (DBP) precursors in drinking water via two different preoxidation methods. The full-scale study was conducted on surface river water in a water supply plant in Tianjin, China. Two treatment trains were performed, with prechlorination and preozonation as preoxidation methods, respectively. The water samples were collected on different stages along the treatment processes and analyzed by following organic parameters: dissolved organic carbon (DOC), UV254 and specific ultraviolet absorbance (SUVA). The results indicated that Train 2 with preozonation was more effective to reduce DBP precursors. Preozonation possessed an excellent ability in the removal of UV254 and SUVA, the removal efficiencies were 25.14% and 18.77%, respectively, comparing to the removal rates of 6.66% and 5.64% during prechlorination, separately.

PROBLEMS OF QUALITY AND SAFETY OF BOTTLED DRINKING WATER

2018 ◽  
Author(s):  
Л.И. АМБАРЦУМЯН ◽  
Е.Н. ГУБА ◽  
М.В. ГУСЕВА ◽  
С.Н. ДИЯНОВА ◽  
В.В. ИЛЛАРИОНОВА
Keyword(s):  
Drinking Water ◽  
Chemical Composition ◽  
Water Samples ◽  
Quality And Safety ◽  
Testing Laboratory ◽  
Bottled Drinking Water ◽  
Microelement Composition ◽  
Microbiological Indicators

Проведены исследования качества 12 образцов питьевой бутилированной воды в условиях аккредитованной испытательной лаборатории. Исследование информативности маркировки образцов воды выявило, что не все производители выполняют требования ТР ТС 022/2011. Дана оценка органолептических, физико-химических и микробиологических показателей питьевой воды. Определены критерии безвредности химического состава образцов. Исследован макро- и микроэлементный состав. Выявлена необходимость повышения степени ответственности производителей при формировании качества. The quality of 12 samples of bottled drinking water was studied in an accredited testing laboratory. The study of informative labeling of water samples revealed that not all manufacturers fulfill the requirements of TR TS 022/2011. The evaluation of organoleptic, physicochemical and microbiological indicators of drinking water is given. Criteria of harmlessness of the chemical composition of samples are defined. It is investigated macro- and microelement composition of drinking water. The necessity to increase the degree of responsibility of producers in the formation of quality is revealed.

Sensory aspects of drinking water in contact with epoxy lined copper pipe

2007 ◽  
Vol 55 (5) ◽  
pp. 161-168 ◽  
Author(s):  
T.H. Heim ◽  
A.M. Dietrich
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Organic Compounds ◽  
Sensory Analysis ◽  
Water Samples ◽  
Distribution System ◽  
Distribution Systems ◽  
Free Chlorine ◽  
Copper Pipe

Pipe relining via in situ epoxy lining is used to remediate corroded plumbing or distribution systems. This investigation examined the effects on odour, TOC, THM formation and disinfectant demand in water exposed to epoxy-lined copper pipes used for home plumbing. The study was conducted in accordance with the Utility Quick Test, a migration/leaching method for utilities to conduct sensory analysis of materials in contact with drinking water. The test was performed using water with no disinfectant and levels of chlorine and monochloramines representative of those found in the distribution system. Panelists repeatedly and consistently described a “plastic/adhesive/putty” odour in the water from the pipes. The odour intensity remained relatively constant for each of two subsequent flushes. Water samples stored in the epoxy-lined pipes showed a significant increase in the leaching of organic compounds (as TOC), and this TOC was demonstrated to react with free chlorine to form trichloromethane. Water stored in the pipes also showed a marked increase in disinfectant demand relative to the water stored in glass control flasks. A study conducted at a full scale installation at an apartment demonstrated that after installation and regular use, the epoxy lining did not yield detectable differences in water quality.

Understanding and forecasting taste-and-odour formation in a drinking water distribution system: case study of Lyon (France)

2009 ◽  
Vol 9 (1) ◽  
pp. 67-74 ◽  
Author(s):  
Elise Corbi ◽  
Valérie Jacquemet ◽  
Alain Quendo ◽  
Francine Manciot ◽  
Adeline Lamy ◽  
...  
Keyword(s):  
Drinking Water ◽  
Distribution System ◽  
Water Distribution ◽  
Water Distribution System ◽  
Distribution Network ◽  
Drinking Water Distribution ◽  
First Results ◽  
Mechanisms Of Formation

Lyon, France has the opportunity to distribute in abundance a groundwater resource with a good quality for drinking water. However, the length and the complexity of the distribution network can lead to consumer complaints in some areas of the water distribution system. In order to improve the organoleptic quality of distributed water, the water supplier wants to get a better understanding of potential taste and odour formation and to succeed in controlling it. Since 2006, activities have been taken with targeted analyses and sensory evaluation of water, taking into account both the consumers' private networks and the citywide distribution network. The first results were focused on the occurrence of bromophenols along the water distribution system, the understanding of the mechanisms of formation of such compounds, as well as their incidence on taste-and-odour events at the consumer's home.

scholarly journals ASSESSMENT OF GROUNDWATER QUALITY FROM INDUSTRIAL AND RESIDENTIAL AREAS OF SANGO OTA, NIGERIA

2021 ◽  
Vol 46 (2) ◽  
Author(s):  
O.A. Oguntade ◽  
V.I. I Fesiokwu ◽  
O. S. Sule
Keyword(s):  
Electrical Conductivity ◽  
Drinking Water ◽  
Water Samples ◽  
Total Suspended Solid ◽  
Industrial Area ◽  
Suspended Solid ◽  
Residential Area ◽  
Total Hardness ◽  
Residential Areas ◽  
High Concentration

High concentration of contaminants in drinking water can affect human health. This study assessed quality of groundwater at industrial and residential areas of Sango Ota, Ogun State. Water samples were collected in triplicates from 8 wells at industrial and residential areas and analyzed for its physicochemical properties. The pH, electrical conductivity, total dissolved solid (TDS), nitrate, sulphate, total suspended solid (TSS), total hardness (TH), iron, zinc, copper, lead, nickel, chromium and cadmium concentrations in the water samples were determined following American Public Health Association (APHA) procedure. Results showed that pH of 50 % of the wells were lower than minimum limit of 6.5 recommended by WHO. Sulphate, TH and iron in the water were significantly (p < 0.05) higher at residential area than industrial area. Electrical conductivity exhibited significant (p < 0.01) correlation with TDS (r = 0.701**) and NO32- (r = 0.922**) at residential area. At the industrial area however, concentration of salts in water samples was highly associated with SO42- (r = 0.864**) and Cd (r = 0.587**). Across locations of groundwater, iron and lead were above allowable WHO limits in drinking water. Cadmium was also above drinking limit at location T4 of the residential area. Consumers of groundwater in the study area are prone to health related challenges of heavy metal toxicity.

scholarly journals Assessment of bacteriological quality of drinking water from various sources in Amritsar district of northern India

2015 ◽  
Vol 9 (08) ◽  
pp. 844-848 ◽  
Author(s):  
Sita Malhotra ◽  
Shailpreet K Sidhu ◽  
Pushpa Devi
Keyword(s):  
Drinking Water ◽  
Human Consumption ◽  
Human Right ◽  
Safe Water ◽  
Bacteriological Quality ◽  
Northern India ◽  
Quality Of Water ◽  
The Government ◽  
High Level

Introduction: Safe water is a precondition for health and development and is a basic human right, yet it is still denied to hundreds of millions of people throughout the developing world. Water-related diseases caused by insufficient safe water supplies, coupled with poor sanitation and hygiene, cause 3.4 million deaths a year, mostly in children. Methodology: The present study was conducted on 1,317 drinking water samples from various water sources in Amritsar district in northern India. All the samples were analyzed to assess bacteriological quality of water for presumptive coliform count by the multiple tube test. Results: A total of 42.9% (565/1,317) samples from various sources were found to be unfit for human consumption. Of the total 565 unsatisfactory samples, 253 were from submersible pumps, 197 were from taps of piped supply (domestic/public), 79 were from hand pumps, and 36 were from various other sources A significantly high level of contamination was observed in samples collected from submersible pumps (47.6%) and water tanks (47.3%), as these sources of water are more exposed and liable to contamination. Conclusions: Despite continuous efforts by the government, civil society, and the international community, over a billion people still do not have access to improved water resources. Bacteriological assessment of all sources of drinking should be planned and conducted on regular basis to prevent waterborne dissemination of diseases.

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