scholarly journals Characterization by fluorescence of dissolved organic matter in rural drinking water storage tanks in Morocco

2018 ◽  
Vol 16 (2) ◽  
pp. 321-328
Author(s):  
Faissal Aziz ◽  
Naaila Ouazzani ◽  
Laila Mandi ◽  
Aziz Assaad ◽  
Steve Pontvianne ◽  
...  
Keyword(s):  
Drinking Water ◽  
Fluorescence Spectroscopy ◽  
Rural Areas ◽  
Water Storage ◽  
Oxygen Demand ◽  
Synchronous Fluorescence ◽  
Storage Tanks ◽  
Reservoir Water ◽  
Synchronous Fluorescence Spectra

Abstract Water storage tanks, fed directly from the river through opened channels, are particular systems used for water supply in rural areas in Morocco. The stored water is used as drinking water by the surrounding population without any treatment. UV-visible spectroscopy and fluorescence spectroscopy (excitation-emission matrices and synchronous fluorescence) have been tested as rapid methods to assess the quality of the water stored in the reservoirs as well as along the river feeding them. Synchronous fluorescence spectra (SFS50), collected with a difference of 50 nm between excitation and emission wavelengths, revealed a high tryptophan-like fluorescence, indicative of a pollution induced by untreated domestic and/or farm wastewater. The best correlations were obtained between the total SFS50 fluorescence and dissolved organic carbon (DOC) and biological oxygen demand, showing that the contribution of humic-like fluorescent substances cannot be neglected to rapidly assess reservoir water quality in terms of DOC by fluorescence spectroscopy.

scholarly journals FAKTOR-FAKTOR YANG BERHUBUNGAN DENGAN KEJADIAN DIARE PADA ANAK USIA 4-6 TAHUN

2017 ◽  
Vol 3 (1) ◽  
pp. 28
Author(s):  
Selviana Selviana ◽  
Elly Trisnawati ◽  
Sitti Munawarah
Keyword(s):  
Drinking Water ◽  
Random Sampling ◽  
Water Storage ◽  
Sampling Technique ◽  
Microbial Quality ◽  
Community Based ◽  
Chi Square ◽  
Cross Sectional ◽  
Chi Square Test

Abstract: Factors Related To Occurrence Of Diarrhea In 4-6 Year Children. Diarrhea cases in 4-6-year-old children in Desa Kalimas raised annually, from 10% in 2013 to 33% in 2014, and 35% in 2015. This study aimed at factors related to diarrhea cases in 4-6-year-old children in Desa Kalimas Kecamatan Sungai Kakap. Cross Sectional approach was used forty one sample participated in this study. They were selected by using proportional random sampling technique. The data analysis using chi-square test with a 95% confidence level. The study revealed significant correlation of hand washing (p = 0,043 ; PR = 2,175), microbial quality of drinking water storage (p = 0,016 ; PR = 1,462), availability of family latrine (p = 0,003 ; PR = 3,242), and diarrhea cases. There was no significant correlation between diarrhea cases are the habit of boiling water with the microbial quality of drinking water, the source of water for washing cutlery, and microbial of drinking water, (p > 0,05). It is hoped health authorized staffs in Desa Kalimas apply community- based total sanitation, enhance clean and healthy behaviour, and socialize healthy drinking water storage based on Regulation of Minister of Healthy No. 3/2014.Abstrak: Faktor-Faktor Yang Berhubungan Dengan Kejadian Diare Pada Anak Usia 4-6 Tahun. Angka kejadian diare pada anak usia 4-6 tahun di Desa Kalimas mengalami peningkatan setiap tahunnya. Tahun 2013 kejadian diare sebesar 10%, tahun 2014 sebesar 33% dan 35% pada tahun 2015. Penelitian ini bertujuan untuk mengetahui faktor-faktor yang berhubungan dengan kejadian diare pada anak usia 4-6 tahun di Desa Kalimas Kecamatan Sungai Kakap. Penelitian ini menggunakan desain cross sectional dengan jumlah sampel  45 orang yang diambil menggunakan teknik proportional random sampling. Uji statistik yang digunakan uji chi-square dengan tingkat kepercayaan 95%. Hasil penelitian menunjukkan bahwa terdapat hubungan yang bermakna antara kebiasaan mencuci tangan dengan diare (p = 0,043; PR = 2,175), penyimpanan air minum dengan kualitas mikrobiologi air minum (p = 0,016; PR = 1,462), ketersediaan jamban keluarga dengan diare (p = 0,003; PR = 3,242). Variabel yang tidak berhubungan yaitu kebiasaan memasak air dengan kualitas mikrobiologi air minum, sumber air untuk mencuci alat makan/minum dan kualitas mikrobiologi air minum dengan diare (p ≥ 0,005). Disarankan agar di Desa Kalimas bisa diterapkan program STBM dan peningkatan penerapan PHBS pada masyarakat Desa Kalimas serta mensosialisasikan cara penyimpanan air minum yang baik sesuai dengan Permenkes No 3 tahun 2014.

Survey of Microbial Quality of Drinking Water in Rural Areas of Kashan-Iran in Second Half of 2008

2010 ◽  
Vol 14 (1) ◽  
pp. 59-63 ◽  
Author(s):  
M.B. Miranzadeh ◽  
M. Heidari ◽  
A.R. Mesdaghini ◽  
M. Younesian
Keyword(s):  
Drinking Water ◽  
Rural Areas ◽  
Microbial Quality

Characteristics of Ion Release from Building Materials during Rainwater Harvesting

2014 ◽  
Vol 955-959 ◽  
pp. 3522-3528
Author(s):  
Jian Feng Zhang ◽  
Ya Xiong Deng ◽  
Zhan Qin Lei ◽  
Wei Xie
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Rural Areas ◽  
Building Materials ◽  
Rainwater Harvesting ◽  
Chinese Government ◽  
Ion Release ◽  
Water Ph ◽  
Materials Used

In the past two decade, the Chinese government has paid a huge effort to solve the problem of drinking water in remote rural. As an alterative success case, rainwater harvesting and utility has been the most efficient way to supplying fresh water in rural areas of the Loess Plateau, a typical water resources serious shortage area in China. Focused on improving the quality of the rural village cistern water, study about the characteristics of ion release from building materials during runoff process with five representative materials used for rainwater collection: concrete, red brick, grey tile, red tile and soil was conducted. The ion releasing process and following effect on cistern water quality index, such as hardness, pH, conductivity, has been analyzed. Results revealed that the most release strength of different materials was arriving at 30s following startup. Furthermore, the test of effects of rain acidity on ion release procession showed that the total ion release increased with storm water pH declining, however, the release strength was irrelevance with runoff’s pH. Based on research results, a detailed suggestion was provided to renovate intake construction of cistern for improving the drinking water quality in remote rural areas of Weibei Semi-arid District.

Nouvelle approche pour déterminer la distribution des temps de séjour dans les réservoirs d'eau potable en régime non permanent

2002 ◽  
Vol 29 (4) ◽  
pp. 612-621 ◽  
Author(s):  
Éric Mainville ◽  
Vincent Gauthier ◽  
Daniel Lavallée ◽  
Claude Marche
Keyword(s):  
Drinking Water ◽  
Unsteady Flow ◽  
Time Distribution ◽  
Residence Time Distribution ◽  
Water Storage ◽  
Pilot Scale ◽  
Tracer Study ◽  
Storage Tanks ◽  
Flow Conditions ◽  
New Approach

Drinking water storage tanks are used to respond to fluctuating demand and to maintain water pressure in the distribution network. In drinking water plants, they are also used for disinfection. In both cases, a good knowledge of the residence time distribution (RTD) is important. An easy way to obtain the water RTD in a drinking water tank is to perform a tracer study. Nevertheless, "classical" tracing techniques can only be used under steady flow conditions. To cope with that, this study proposes a new approach to extend the application of tracer tests to unsteady flow conditions. This new approach is based on signal processing. It has been tested numerically and on a pilot scale model. The numerical tests have shown that this technique can be used for determining the RTD twice more rapidly than the "classical" methods. Thus, this technique allows to approach the knowledge of the RTD under unsteady flow conditions. Pilot scale tests have shown the need for other improvements to bring the quality of the results obtained to the same level of goodness as those obtained from a theorical example.Key words: drinking water, storage tanks, water quality, tracer study, residence time distribution, signal processing, unsteady flow.

scholarly journals Assessment of the chemical quality of drinking water in Cambodia

2006 ◽  
Vol 5 (1) ◽  
pp. 101-116 ◽  
Author(s):  
Peter R. Feldman ◽  
Jan-Willem Rosenboom ◽  
Mao Saray ◽  
Chea Samnang ◽  
Peng Navuth ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Ground Water ◽  
Rural Areas ◽  
Rapid Assessment ◽  
Water Sources ◽  
Health Concern ◽  
Chemical Quality ◽  
Drinking Water Sources

Most water supply programmes in Cambodia have focused on providing access to bacteriologically safe water, an approach which has led to an increasing reliance on ground water, especially in rural areas. However, there have been very few data collected on the chemical quality of the nation's drinking water sources, and few water supply programmes have the capacity to assess chemical quality. The study was designed to address this data gap by conducting a low-cost, rapid assessment of drinking water sources nationwide to determine whether there were any chemicals of concern in Cambodian water supply sources. Results of the assessment confirm that there are several parameters of health and aesthetic concern; dissolved arsenic is the most significant. Elevated arsenic levels (some exceeding 500 μg l-1) were detected in aquifers of moderate depth in several highly populated areas, confirming that further investigation of the occurrence of arsenic contamination in Cambodia is warranted. Other chemicals of health concern include nitrate, nitrite, fluoride and manganese. Additionally, many ground water sources are negatively impacted by parameters of aesthetic concern, such as iron, manganese, hardness and total dissolved solids. Elevated levels of these parameters have caused consumers to reject newly installed water supplies, often in favour of surface water sources that are bacteriologically unsafe.

scholarly journals Categories and Water Quality of Artificial Water Storage Ponds in Rural Areas of Khulna, Bangladesh

2015 ◽  
Vol 13 (6) ◽  
pp. 411-426 ◽  
Author(s):  
Md. Mahmudur RAHMAN ◽  
Md. Mahmudul HASAN ◽  
Jun NAKAJIMA
Keyword(s):  
Water Quality ◽  
Rural Areas ◽  
Water Storage ◽  
Artificial Water

scholarly journals DESIGN OF TANDON AND AUTOMATIC FILLING TOOLS ON DISPENSERS WITH ULTRASONIC SENSORS

2019 ◽  
Vol 4 (1) ◽  
pp. 55-64
Author(s):  
Hafizt Azzari Aldaf ◽  
Indyah Hartami Santi ◽  
Yusniarsi Primasari
Keyword(s):  
Drinking Water ◽  
Water Level ◽  
Cold Water ◽  
Water Storage ◽  
Ultrasonic Sensor ◽  
Hot Water ◽  
Storage Tanks ◽  
Ultrasonic Sensors ◽  
Modern Era ◽  
Maximum Limit

Nowdays, The development of water dispensers has hot and cold water technology, but fills water into cold and hot water storage tanks by lifting and putting the gallons on top of the dispenser so that water can flow into hot and cold water storage tanks, this is assessed less efficient. The purpose of making this tool is to make it easier for users to install gallons without having to lift the gallon and put it on top of the reservoir, it can also facilitate the taking of drinking water without having to press or open the faucet first. Because in modern era, the need for tools that work automatically and efficiently are increasing. The results of this study indicate that automatic water and faucet filler devices in dispensers using ultrasonic sensors as a whole work well and are in accordance with the function specified. The function of the ultrasonic sensor is as a reader the maximum limit of water level in the reservoir, so that when the water is in its maximum state, the pump will stop filling the reservoir. And the ultrasonic sensor in front of the dispenser functions to read the glass, the sensor will detect and then be received by the microcontroller and continue to execute the relay and open the selenoid so that the water can come out.

scholarly journals MONITORING OF DRINKING WATER RESERVOIRS OF KOPARGAON CITY WITH SPECIAL REFERENCE TO ALGAL FLORA AT YESGAON, DIST. AHMEDHNAGAR MAHARASHTRA (M.S.), INDIA

2020 ◽  
Vol 8 (9) ◽  
pp. 16-21
Author(s):  
R. R. Sanap ◽  
B. P. Shevare ◽  
M. M. Barwant
Keyword(s):  
Drinking Water ◽  
Monsoon Season ◽  
Water Storage ◽  
Summer Season ◽  
Algal Flora ◽  
Storage Tanks ◽  
Algal Population ◽  
Dominant Group ◽  
Storage Reservoirs ◽  
Investigation Period

Algal collection from 5 drinking water storage reservoirs of Kopargaon city was carried out for one year. A total 39 genera and 62 species belonging to four classes were encountered during investigation period. Present studies revealed that, algal population was not found homogenous throughout the year, but it showed seasonal variation. During monsoon the algal population recorded was less, which increases in winter and found more in summer season. Chlorophyceae was found to be the dominant group throughout the investigation period in all storage tanks consisting of large number of genera and species. Many planktonic, some benthic and epiphytic algae were encountered during investigation period at all five water storage reservoirs. The commonly occurred genera were Ankistrodesmus, Closterium, Cosmarium, Spirogyra, Ulothrix from class Chlorophyceae, while from Cyanophyceae, Merismopedia, Microcystis, Oscillatoria, and Lyngbya are dominating forms. Desmids wear found in dominant condition in all storage tanks indicating unpolluted condition of water. Maximum population of Cosmarium was recorded during summer season, while Closterium species were recorded throughout the year. Other genera recorded were Staurastrum, Xanthidium, Euastrum, Micrasterias, Arthrodesmus, Desmidium, etc.  Diatoms were recorded more in number during winter, while Euglenophycean members were sparsely reported only in summer. During present studies tremendous variations in Desmid diversity was noticed during summer and winter as compared to monsoon season.

scholarly journals The Impact of Social Disparities on Microbiological Quality of Drinking Water Supply in Ugu District Municipality of Kwazulu-Natal Province, South Africa

2019 ◽  
Vol 16 (16) ◽  
pp. 2972
Author(s):  
C. M. N. Khabo-Mmekoa ◽  
M. N. B. Momba
Keyword(s):  
Drinking Water ◽  
Urban Communities ◽  
Rural Areas ◽  
Urban Areas ◽  
Microbiological Quality ◽  
Rural And Urban Areas ◽  
Rural And Urban ◽  
Kwazulu Natal ◽  
Brick And Mortar

This study was undertaken to highlight the social disparity between rural and urban areas in terms of housing patterns, provision of safe drinking water, access to sanitation facilities, education, employment rate and health-related to diarrhoeal episodes in Ugu District Municipality of KwaZulu-Natal Province of South Africa. To achieve this aim, a survey was conducted using a structured questionnaire. Drinking water samples were collected from the point of supply and the storage containers to assess the microbiological quality of drinking water in both rural and urban areas. Results of this study revealed prominent residential segregation between rural and urban communities, whereby the houses in the rural areas were generally constructed with corrugated iron sheets, or mud brick and mortar whereas conventional brick-and-mortar construction was used to build those in the urban areas. All of the urban households had flush toilets in their houses (100%), while 98.2% of the rural households were relying on pit latrines and 1.8% were reported to defecate in an open field. The District unemployment rate was at 58.1% in rural areas and none among the urban community. Results also showed that only 13.6% of the rural dwellers completed their secondary education compared to 70.4% of the urban areas. The diarrhoeal episodes were high in rural areas (34.1%) while none of these episodes was reported in urban areas. Great disparity in the water supply persists between rural and urban communities. For the former, the standpipes located outside their homes (90.9%) remain the sole mode of access to drinking water, while in the urban area, all households had pipes/taps inside their houses. Assessment of the drinking water quality revealed only the stored drinking water used by the rural community of Ugu District was contaminated. High prevalence of E. coli ranging from 63.3 % to 66.7% was recorded only in stored water after the sequencing of 16S rRNA genes. Species-specific PCR primers exposed the presence of enteropathogenic Escherichia coli at a rate ranging between 1.4% and 3.7% in this water Overall, this study has been able to highlight the disparity left by the legacy of racial segregation in the Ugu Municipality District. Therefore, the local government must intervene in educating homeowners on safe water storage practices.

Sign in / Sign up

Export Citation Format

Share Document