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

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.

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STAGNATION REDUCTION IN DRINKING WATER STORAGE TANKS THROUGH INTERNAL PIPING

10.37099/mtu.dc.etdr/706 ◽

2018 ◽

Author(s):

Mohammad Alizadeh Fard

Keyword(s):

Drinking Water ◽

Water Storage ◽

Storage Tanks

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

Journal of Water and Health ◽

10.2166/wh.2018.002 ◽

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.

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

Canadian Journal of Civil Engineering ◽

10.1139/l02-058 ◽

2002 ◽

Vol 29 (4) ◽

pp. 612-621 ◽

Cited By ~ 1

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.

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

Journal of Academic Research and Sciences (JARES) ◽

10.35457/jares.v4i1.690 ◽

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.

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Water quality aspects related to domestic drinking water storage tanks and consideration in current standards and guidelines throughout the world – a review

Journal of Water and Health ◽

10.2166/wh.2020.052 ◽

2020 ◽

Vol 18 (4) ◽

pp. 439-463

Author(s):

Irene Slavik ◽

Keila Roberta Oliveira ◽

Peter Batista Cheung ◽

Wolfgang Uhl

Keyword(s):

Water Quality ◽

Drinking Water ◽

Water Storage ◽

International Standards ◽

Drinking Water Quality ◽

Storage Tanks ◽

Quality Aspects ◽

The World ◽

Standards And Guidelines ◽

The Impact

Abstract In many parts of the world, drinking water storage takes place in near-house or in-house tanks. This can impact drinking water quality considerably. International and numerous national standards and guidelines addressing the construction, installation and operation of domestic drinking water storage tanks are reviewed on their consideration of water quality aspects and the minimisation of health risks associated with drinking water storage. Several national and international standards and guidelines are reviewed in terms of drinking water quality requirements. Factors that have an impact on water quality in relation to the use of domestic drinking water storage tanks are summarised comprehensively. The impact of the domestic storage of drinking water on water quality, the points and locations of use, their positioning, the materials they are made of, their design and operation, as well as aspects of how they are operated and maintained is outlined and discussed in detail. Finally, the incorporation of aspects regarding water quality in drinking water storage tanks in standards and guidelines is presented and assessed. To make the use of domestic drinking water storage tanks safer and more efficient, recommendations for modifications, improvements and extensions of respective standards are made.

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