scholarly journals Research on pressure optimization effect of high level water tank by drinking water network hydraulic model

2012 ◽  
Vol 31 ◽  
pp. 958-966 ◽  
Author(s):  
Yue Xu ◽  
Xiao-yu Zhang
Keyword(s):  
Drinking Water ◽  
Hydraulic Model ◽  
Water Tank ◽  
Water Network ◽  
High Level

Study and Evaluation of Stored Drinking Water Characteristics Using Three Types of Roof Water Tanks in Kirkuk Governorate, Iraq

2019 ◽  
Vol 7 (1) ◽  
pp. 11-16
Author(s):  
Abdulkhaleq K Mahmood ◽  
Ali A Kamal ◽  
Ako R Hama
Keyword(s):  
Drinking Water ◽  
Storage Time ◽  
Total Dissolved Solids ◽  
Water Tank ◽  
Dissolved Solids ◽  
Water Characteristics ◽  
Three Samples ◽  
Water Metal ◽  
Water Tanks ◽  
Better Than

The scarcity of safe drinking water is one of the problems faced by the majority of cities in the world. Kirkuk city is one of these cities, which suffer from a shortage of drinking water. People have adopted the use of different rooftop tanks to overcome this problem. This research focuses on studying the effect of storage time on the five main characteristics of drinking water, which include, acid index (pH), electrical conductivity (EC), total suspended solids (TSS), total dissolved solids (TDS), and turbidity (Tr). Three types of tanks were used predominantly (galvanized metal, plastic, and aluminum tanks). By analyzing the results, the characteristics of three samples of municipal source water obtained. Three samples were taken from each tank at different periods (4, 8, and 12 days). The results showed that the storage time affected the characteristics of drinking water. These characteristics differed from one tank to another. Metal tanks showed an increase in total dissolved solids, due to the evaporation process, even as plastic and aluminum tanks showed an increase in pH. The properties of all storage water tanks changed with times, but overall, the results were within the Iraqi limitation for drinking water. It was not easy to only depend on the results of this study to believe that any one type of water tank was better than the other, as the values of most of the variables studied had varied from one type to other. However, many studies have indicated a number of health risks, and most significantly with regard to plastic tanks, which are said to contain dangerous organic compounds that can be transferred to water. Metal tanks can cause zinc leakage, caused by a number of environmental factors at high levels. Aluminum tanks also can have an effect on the water in tanks.

scholarly journals Infectious gastroenteritis in Norfolk Island and recovery of viruses from drinking water

1983 ◽  
Vol 91 (1) ◽  
pp. 139-146 ◽  
Author(s):  
A. M. Murphy ◽  
G. S. Grohmann ◽  
M. F. H. Sexton
Keyword(s):  
Electron Microscopy ◽  
Drinking Water ◽  
Cell Cultures ◽  
Electron Microscopic Examination ◽  
Electron Microscopic ◽  
Infectious Gastroenteritis ◽  
High Incidence ◽  
Norfolk Island ◽  
High Level

SUMMARYA high incidence of gastroenteritis in both islanders and tourists has been recorded in recent years on Norfolk Island – a popular tourist resort for Australians and New Zealanders. No bacterial cause has been found. However, electron microscopic examination of 28 faecal specimens revealed viruses associated with gastroenteritis in 21 (75%). No viruses were isolated in cell cultures. Bore water is used for drinking purposes on the island and 32 samples from 15 bores were examined for viruses by electron microscopy and culture as well as for bacterial contamination. Seven polioviruses (all type 1 vaccine strain) and adenoviruses 1 and 5 were isolated in cell cultures. In addition one rotavirus, one adenovirus and two small round viruses were detected by electron microscopy. Six of 21 samples tested showed unacceptably high levels of bacteria for drinking water. The deep ground water has apparently become contaminated with sewage effluent and is almost certainly the main cause of the high level of gastroenteritis on the island.

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.

scholarly journals Evaluation the water quality of the potable water network in Al-Shuala/ Baghdad City

2019 ◽  
Vol 13 (28) ◽  
pp. 116-124
Author(s):  
Zainab Bahaa Mohammed
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Drinking Water ◽  
Quality Index ◽  
Potable Water ◽  
Total Hardness ◽  
Water Network ◽  
Conductivity Water ◽  
Total Dissolved Solid

In this research, the water quality of the potable water network inAl-Shuala Baghdad city were evaluated and compare them with theIraqi standards (IQS) for drinking water and World HealthOrganization standards (WHO), then water quality index (WQI) werecalculator: pH, heavy metals (lead, cadmium and iron), chlorides,total hardness, turbidity, dissolved oxygen, total dissolved solid andelectrical conductivity. Water samples are collected weekly duringthe period from February 2015 to April 2015 from ten sites. Resultsshow that the chlorides, total dissolved solid and electricalconductivity less than acceptable limit of standards, but totalhardness and heavy metals in some samples higher than acceptablelimit of standards while the other parameter is good.WQI shows thatresults is excellent and good for drinking for all location and monthsexcept site (2) gave higher value (65.184) in March and site (9) gavehigh value (57.78, 57.23) at March and April indicate that sites ispoor for drinking water.

scholarly journals HUBUNGAN TINGKAT PENGETAHUAN TENTANG KEBUTUHAN CAIRAN TUBUH DENGAN POLA KONSUMSI AIR MINUM PADA MAHASISWA TINGKAT I AKPER PANTI KOSALA SURAKARTA

2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Budi Herminto ◽  
Risa Setia Ismandani
Keyword(s):  
Drinking Water ◽  
Design Research ◽  
P Value ◽  
First Year ◽  
Knowledge Level ◽  
First Year Students ◽  
Fluid Body ◽  
Level Of Knowledge ◽  
High Level ◽  
The Relationship

AbstractWater represent compound which is the necessary for all living. Consumption behaviorirrigate society not yet altogether goodness, society consume water when feel thirsty anddo not so pay attention drinking water and amount matching with requirement. Purpose ofthe study to determine the relationship between the knowledge level about fluid bodyrequirement with pattern consume drinking water at student in Academy of Nursing PantiKosala Surakarta.The subject was used as population in the study was all the first year students. The totalpopulation were 139 students, and the sample were 103 students. The samplingtechnique was simple random sampling.This research method represent analytic research with design research of corelasional toknow relationship between knowledge level about fluid body requirement with patternconsume drinking water of student.The results was the high level of knowledge about the fluid body requirment were 74(72%), moderate level of knowledge about the fluid body requirment were 29 (28%), whilethe behavior of consuming appropiate water were 69 (67%), and the behavior ofconsuming inappropiate water were 34 (33%) with a p-value 0.003 <0.05 significant 95%.There was a significant relationship between the knowledge level about fluid bodyrequirement with pattern consume drinking water at student in Academy of Nursing PantiKosala Surakarta.Keywords: knowlegde level, fluid body requirement, pattern consume drinking water.

Dynamics of bacterial communities before and after distribution in a full-scale drinking water network

2015 ◽  
Vol 74 ◽  
pp. 180-190 ◽  
Author(s):  
Joline El-Chakhtoura ◽  
Emmanuelle Prest ◽  
Pascal Saikaly ◽  
Mark van Loosdrecht ◽  
Frederik Hammes ◽  
...  
Keyword(s):  
Drinking Water ◽  
Bacterial Communities ◽  
Full Scale ◽  
Water Network ◽  
Before And After

First Evidence of Amoebae–Mycobacteria Association in Drinking Water Network

2014 ◽  
Vol 48 (20) ◽  
pp. 11872-11882 ◽  
Author(s):  
Vincent Delafont ◽  
Faïza Mougari ◽  
Emmanuelle Cambau ◽  
Michel Joyeux ◽  
Didier Bouchon ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Network

scholarly journals Levels of reactive nitrogen in surface and ground water samples obtained from different parts of Bangladesh

2014 ◽  
Vol 38 (1) ◽  
pp. 75-82 ◽  
Author(s):  
M Anowar K Parvez ◽  
Mahfuza Marzan ◽  
Syeda Moriam Liza ◽  
Zia Uddin Ahmed
Keyword(s):  
Drinking Water ◽  
Surface Water ◽  
Ground Water ◽  
Water Samples ◽  
Ammonia Concentration ◽  
Reactive Nitrogen ◽  
Tube Well ◽  
High Level ◽  
Academy Of Sciences ◽  
Different Parts

A total of 114 water samples collected from different parts of Bangladesh were analyzed for the level of reactive nitrogen species NO3 and NH3. Nitrate was determined in 20 surface water, 28 motorized deep tube well and 66 hand operated tube well samples. Ammonia was determined in 18 surface water, 14 deep tube well and 49 hand operated tube well samples. These sites were randomly selected. Nitrate levels were found to be generally low (below 3 mg/l) in 112 of the 114 samples tested, which is much below permissible level of 10 mg/l of drinking water in Bangladesh. Ammonia concentration was, however, found to be about 4 mg/l in majority of the samples tested which is higher than maximum permissible limit of 0.5 mg/l in drinking water. Possible reasons for low level of nitrate and relatively high level of ammonia in surface and ground water samples in Bangladesh is discussed DOI: http://dx.doi.org/10.3329/jbas.v38i1.20214 Journal of Bangladesh Academy of Sciences, Vol. 38, No. 1, 75-82, 2014

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