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Journal articles on the topic 'Water-supply Waterworks'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Gunnarsdóttir, María J., and Loftur R. Gissurarson. "HACCP and water safety plans in Icelandic water supply: Preliminary evaluation of experience." Journal of Water and Health 6, no. 3 (2008): 377–82. http://dx.doi.org/10.2166/wh.2008.055.

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Icelandic waterworks first began implementing hazard analysis and critical control points (HACCP) as a preventive approach for water safety management in 1997. Since then implementation has been ongoing and currently about 68% of the Icelandic population enjoy drinking water from waterworks with a water safety plan based on HACCP. Preliminary evaluation of the success of HACCP implementation was undertaken in association with some of the waterworks that had implemented HACCP. The evaluation revealed that compliance with drinking water quality standards improved considerably following the imple

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2

Jiang, Zhiqiang, Chao Wang, Yi Liu, Zhongkai Feng, Changming Ji, and Hairong Zhang. "Study on the Raw Water Allocation and Optimization in Shenzhen City, China." Water 11, no. 7 (2019): 1426. http://dx.doi.org/10.3390/w11071426.

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In order to allocate the raw water of the complex water supply system in Shenzhen reasonably, this paper studied the complex network relationship of this large-scale urban water supply system, which consists of 46 reservoirs, 67 waterworks, 2 external diversion water sources, 14 pumping stations and 9 gates, and described each component of the system with the concepts of point, line and plane. Using the topological analysis technology and graph theory, a generalized model of the network topological structure of the urban water allocation system was established. On this basis, combined with the

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3

He, Lian. "Research on Appropriate Automatic Control Model in Rural Waterwoks." Applied Mechanics and Materials 385-386 (August 2013): 964–67. http://dx.doi.org/10.4028/www.scientific.net/amm.385-386.964.

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In rural waterworks automatic control application and development situation are discussed in this paper, aiming at the characteristics of rural waterworks, the design principles of automatic control system are put forward, and the rural waterworks automatic control system model and unit control technology solutions are analyzed, in order to provide scientific and effective means for rural water construction, and promote modernization operation and management level of rural water supply project.

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Tchórzewska-Cieślak, Barbara. "Risk in Water Supply System Crisis Management." Journal of Konbin 5, no. 2 (2008): 175–90. http://dx.doi.org/10.2478/v10040-008-0047-1.

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Risk in Water Supply System Crisis Management Water supply system belongs to the so called critical infrastructure of cities, and it should be a priority task for waterworks and even for the local authorities to ensure the suitable level of its safety. This system is characterised by its continuous work and requires high reliability level for its operating as well as for its safety, it is unique and its particular elements have different functions and simultaneously they interact forming an integral whole. The main aim of this paper is to present problems associated with water supply system sa

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Zaytsev, Boris, and Igor Egorov. "Nizhne-Suyanskiy Waterworks Facility — a long-term pending project." Stroitel stvo nauka i obrazovanie [Construction Science and Education], no. 2 (June 30, 2019): 2. http://dx.doi.org/10.22227/2305-5502.2019.2.2.

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Introduction. In 1971, “Schedule of multi-purpose use and protection of water resources of the basin of the Belaya River” envisaged construction of a cascade of 10 waterworks facilities, subdivided in 4 sections. Nizhne-Suyanskiy Waterworks Facility was planned for construction in the third section, the most lucrative in terms of energetic utilization. However, of the three HPPs planned in this section: Varyazhskaya, Nizhne-Suyanskaya and Pavlovskaya HPP, for the time being, only Pavlovskaya HPP has been built. Nizhne-Suyanskiy Waterworks Facility had the mission to solve water household, ener

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Otaki, Y., M. Otaki, P. Pengchai, Y. Ohta, and T. Aramaki. "Micro-components survey of residential indoor water consumption in Chiang Mai." Drinking Water Engineering and Science 1, no. 1 (2008): 17–25. http://dx.doi.org/10.5194/dwes-1-17-2008.

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Abstract. The direct measurement of the micro-components of water consumption (i.e., consumption by each residential activity, such as toilet-, laundry-, bath-, and kitchen-use), both in the dry season and in the rainy season, was conducted in Chiang Mai, Thailand. It was expected that rainfall differences between the dry and rainy season would influence awareness for water resources so that water consumption in the dry season would be smaller than that in the rainy season. In addition, it was examined whether the differences in water resources such as public waterworks or non-public waterwork

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Otaki, Y., M. Otaki, P. Pengchai, Y. Ohta, and T. Aramaki. "Micro-components survey of residential indoor water consumption in Chiang Mai." Drinking Water Engineering and Science Discussions 1, no. 1 (2008): 45–70. http://dx.doi.org/10.5194/dwesd-1-45-2008.

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Abstract. The direct measurement of the micro-components of water consumption (i.e., consumption by each residential activity, such as toilet, laundry, bath, and kitchen) both in the dry season and in the rainy season was conducted in Chiang Mai, Thailand. It was expected that rainfall differences between the dry and rainy season could influence awareness for water resources so that water consumption in the dry season may be smaller than that in the rainy season. It was also examined that whether the differences in water resources such as public waterworks or non-public waterworks like communi

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Nakazono, Hayato, Okinari Dodo, and Kinya Kataishi. "Effectiveness of reconstruction of water supply system from the economic viewpoint and affecting factors – case study of a city." Water Supply 12, no. 6 (2012): 937–42. http://dx.doi.org/10.2166/ws.2012.070.

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To solve the issues of decreasing revenue of waterworks caused by population decline and increasing renewal cost caused by ageing facilities, it is necessary to strengthen the financial base of the waterworks by undertaking efficient reconstruction of water supply system, and the cost of future renewal demands and anti-seismic upgrading need to be reduced. This paper evaluates the effectiveness of the reconstruction of water supply system from the economic viewpoint and identifies affecting factors. Assessments show it is more effective to terminate 60% of plants. The following factors were ta

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9

Bondarenko, V. L., E. D. Khetsuriani, A. I. Ilyasov, and E. A. Semenova. "Evaluation of environmental safety of waterworks for urban water supply systems." IOP Conference Series: Materials Science and Engineering 698 (December 18, 2019): 077060. http://dx.doi.org/10.1088/1757-899x/698/7/077060.

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10

Priyana, Yuli, and Rohman Hakim. "The Potential of Umbul Sungsang Spring Water for Drinking Wate, PDAM, and Irigation Purposes at Banyudono, Boyolali, Central Java." Forum Geografi 15, no. 2 (2016): 176. http://dx.doi.org/10.23917/forgeo.v15i2.4574.

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Umbul Sungsang spring located in the foot of a Merapi is on shift zone between volcanic foot plain and fluvial volcanic fott plain constitutes spring belt. Up to the present, the population use that spring for drinking water and irrigation. The planning of taking water by Municipal Waterworks to supply Solo population causes people around it worried because the usually use that spring. Therefore it is needed to conduct a research to know the potential of that spring. The aim of this research is to account how much the need of drinking water, manucipal waterworks and irrigation and the potentia

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11

Pietrucha-Urbanik, K., and B. Tchórzewska-Cieślak. "Failure risk assessment in water network in terms of planning renewals – a case study of the exemplary water supply system." Water Practice and Technology 12, no. 2 (2017): 274–86. http://dx.doi.org/10.2166/wpt.2017.034.

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In the paper the issue of failure risk assessment in water supply system (WSS) was presented. Problems of water supply network failure constitute a crucial issue in waterworks practice. The results of the analysis were obtained on the basis of real data from water network operation. Attention has been paid to the problem of risk assessment in the context of risk acceptance criteria. An example of criteria application was shown for the exemplary water supply network. The water network indicators: failure frequency, time of failure removal, repair time and intensity of renewal, were calculated.

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Sun, F., J. Chen, Q. Tong, and S. Zeng. "Application of a model-based HACCP system to turbidity control in a conventional waterworks." Water Supply 9, no. 5 (2009): 541–48. http://dx.doi.org/10.2166/ws.2009.453.

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A model-based HACCP system for managing drinking water safety has been proposed by introducing a previously developed Integrated Water Supply System (IWaSS) model for the determination of critical control points (CCPs) and the establishment of critical limits (CLs). In such a HACCP system, hazard analysis is conducted as a quantitative risk assessment through Monte Carlo simulation with the IWaSS model, CCPs are identified through a regional sensitivity analysis, while the CLs for the CCPs are determined through an iterative simulation also with the IWaSS model. The methodology is then applied

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13

Tanaka, T. "Utilization of renewable energy in metropolitan waterworks: is renewable energy a key to solving energy and environmental issues?" Water Supply 18, no. 3 (2017): 1041–50. http://dx.doi.org/10.2166/ws.2017.171.

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Abstract In the field of waterworks in urban areas, renewable energy is being utilized through implementing solar power generation in the upper parts of facilities and hydraulic power generation using gravity flow of water and excess pressure. As a result, we have learned that utilization of renewable energy not only decentralizes and diversifies energy supply to enhance reliability and environmental performance but also recovers its costs sufficiently. This paper proposes several utilization models of renewable energy in metropolitan waterworks by presenting installation, maintenance and mana

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14

Choi, Jeongwook, Do Yoo, and Doosun Kang. "Post-Earthquake Restoration Simulation Model for Water Supply Networks." Sustainability 10, no. 10 (2018): 3618. http://dx.doi.org/10.3390/su10103618.

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A computer-based simulation model was developed to quantify the seismic damage that may occur in water supply networks and to suggest restoration strategies after such events. The model was designed to produce probabilistic seismic events and determine the structural damage of facilities. Then, the model numerically quantifies the system restoration rate over time by connecting it with a hydraulic analysis solver. The model intends to propose superb restoration plans by performing sensitivity analyses using several restoration scenarios. The developed model was applied to an actual metropolita

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15

Brown, John C. "Coping with Crisis? The Diffusion of Waterworks in Late Nineteenth-Century German Towns." Journal of Economic History 48, no. 2 (1988): 307–18. http://dx.doi.org/10.1017/s0022050700004927.

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The article examines the diffusion of waterworks in one hundred Rhenish Prussian towns. It exploits features of the institutions of local political representation to develop and estimate a median voter model of demand for water capacity. The results suggest that rising income of the median voter and demand of industrial users, rather than crises in public health, spurred the installation of improved water supply.

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16

Studziński, Jan, and Andrzej Ziółkowski. "Control of Pumps of Water Supply Network under Hydraulic and Energy Optimisation Using Artificial Intelligence." Entropy 22, no. 9 (2020): 1014. http://dx.doi.org/10.3390/e22091014.

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This article presents several algorithms for controlling water supply system pumps. The aim of having control is the hydraulic optimisation of the network, i.e., ensuring the desired pressure in its recipient nodes, and minimising energy costs of network operation. These two tasks belong to the key issues related to the management and operation of water supply networks, apart from the reduction in water losses caused by network failures and ensuring proper water quality. The presented algorithms have been implemented in an Information and Communications Technology (ICT) system developed at the

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Wannapop, Rangsan, Thira Jearsiripongkul, and Krit Jiamjiroch. "Elevation Effect in Urban Water Distribution Model." MATEC Web of Conferences 153 (2018): 09001. http://dx.doi.org/10.1051/matecconf/201815309001.

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Metropolitan Waterworks Authority (MWA) is Thailand's national government agency responsible for the supply of water to 3 provinces Bangkok, Nonthaburi and Samut Prakan with more than 2,384.9 km2 of service area and 2,281,058 consumers in the year 2016. Bangkok, which is both the capital and the economic center of the country, is densely populated. Consequently, there is a huge demand for water; MWA has to supply 5.914 million cubic meters of water per day. Because the metropolitan water supply area is a densely populated city, the water supply system is very complex like a spider’s web. For t

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18

Nagata, Shigeru, Kohei Kageyama, and Kinya Yamamoto. "An Emergency Restoration Model for Water Supply Network Damage due to Earthquakes." Journal of Disaster Research 3, no. 6 (2008): 390–99. http://dx.doi.org/10.20965/jdr.2008.p0390.

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In this paper the two analytical models which predict damage, post-earthquake restoration strategies and its period of water supply pipeline network are presented. The detailed model evaluates emergency restoration period of water supply pipeline network using the actual network data and the several restoration strategies that was provided from the experiences of past earthquakes. The simplified model also evaluates restoration period by strategy restoring from the side of distribution reservoir using the 1 km grid data of pipeline length of pipe type and diameter estimated from population dat

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19

Lowatanatrakul, Wanchai. "The Provincial Water Supply in Thailand and the Water Decade." Water Science and Technology 23, no. 1-3 (1991): 223–28. http://dx.doi.org/10.2166/wst.1991.0419.

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In order to comply with the International Drinking Water Supply and Sanitation Decade Plan (1981-1990), the Thai Government has set up a target that by the year 1990 not less than 95 percent of the Thai population, or more than 50 million persons, will be served with clean water, compared with 40 percent at the outset of the Decade. However, in 1985, due to several constraints, the Provincial Waterworks Authority (PWA) revised its own target to cover only about 70% by the end of 1990. In 1988 it was estimated that about 2.883 million people in PWA's service areas or about 58.0 percent can be s

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20

Huang, Shi Feng, Feng Wang, Hui Xu, and Xiao Xian Wei. "Research on Optimal Operation of Raw Water Pumping System Based on Hydromechanics in Waterworks." Applied Mechanics and Materials 327 (June 2013): 294–300. http://dx.doi.org/10.4028/www.scientific.net/amm.327.294.

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According to the raw water pumping system with constant speed pump and variable speed pumps based on hydromechanics in waterworks, the hydraulic simulation models were built including pump station, water tanks, suction well etc. Based on the analysis of objective function and constraints of water treatment structures and consideration of pump operation and initial water level of clean-water-tank, the compact optimal operation mathematical models were built. Finally, correctness and advantage of the mathematical models were proved by the optimal simulation of Jinshan water supply project, which

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21

Johnson, Cyril. "The Alcester Waterworks Company: A Study in the Small-scale Technology of Water Supply." Industrial Archaeology Review 8, no. 2 (1986): 166–76. http://dx.doi.org/10.1179/iar.1986.8.2.166.

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22

Larionov, Valery Glebovich, and Marina Gennad'evna Treyman. "Intelligent power management at waterworks (case of Water Supply Branch of State Unitary Enterprise St. Petersburg Vodokanal)." Vestnik of Astrakhan State Technical University. Series: Economics 2020, no. 4 (2020): 7–14. http://dx.doi.org/10.24143/2073-5537-2020-4-7-14.

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The article gives the analysis of resource saving and energy efficiency of the enterprises of water supply and waste water services of the State Unitary Enterprise “St. Petersburg Vodokanal”. There has been evaluated the consumption of electrical energy by the enterprise. The main methods of energy resources management (creating a system of rational consumption and saving of energy resources, using energy-efficient materials, equipment and technologies, identifying the potential of energy-saving measures at operating facilities) have been determined. The priority directions for reducing the pr

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23

Ociepa, Ewa, Robert Molik, and Joanna Lach. "Assessment of water loss level on the example of selected distribution systems." E3S Web of Conferences 44 (2018): 00131. http://dx.doi.org/10.1051/e3sconf/20184400131.

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One of the major problems of waterworks is the excessive failure of distribution systems and associated water leaks. Water losses in water supply networks and systems are often a very high percentage of water supplied into the network. Therefore, a comprehensive analysis and assessment of water losses should be the basis for undertaking modernisation efforts to reduce the costs associated with water production and distribution. The article presents the analysis of water losses performed on the basis of data provided by the Water Supply and Sewerage Company in Radomsko. The data comprised the i

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Tadokoro, H., H. Koibuchi, S. Takahashi, et al. "Water supply control system for smarter electricity power usage adopting demand-response scheme." Water Supply 20, no. 1 (2019): 140–47. http://dx.doi.org/10.2166/ws.2019.143.

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Abstract Demand-response is a scheme in which electricity suppliers and consumers collaborate for smarter usage of electricity aiming to mitigate the gap between supply and demand. It makes electricity consumers receive incentives through curtailing or increasing power demand during a certain period subject to request from the power infrastructure. Water utilities, as heavy electricity consumers, could participate in the scheme through shifting power demand by modifying pump operation schedule, utilizing reservoirs' buffering stock capability. We developed a conveyance/transmission pump schedu

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Yoo, Do, Joo Lee, and Bo Lee. "Comparative Study of Hydraulic Simulation Techniques for Water Supply Networks under Earthquake Hazard." Water 11, no. 2 (2019): 333. http://dx.doi.org/10.3390/w11020333.

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Water supply facilities such as waterworks systems are facilities that supply residential and industrial water essential for humans to live and it is essential for these facilities to be prepared for earthquake hazards. In the present study, new hydraulic analysis procedures that can complement problems in existing model were proposed for performance quantification under seismic hazards. Detailed procedures for estimating the serviceability of water supply networks using pressure dependent demand (PDD) and pressure dependent leakage (PDL) techniques were proposed. The developed methodologies c

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Endo, Takahiro. "Groundwater management: a search for better policy combinations." Water Policy 17, no. 2 (2014): 332–48. http://dx.doi.org/10.2166/wp.2014.255.

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Excessive groundwater pumping is now a global concern. There is no panacea for this problem, which needs to be addressed through continual policy improvements based on case studies. Good examples of the diversity of groundwater management are demonstrated by the Tokyo (Japan) and Orange County Water District (OCWD, California, USA) experiences. In Tokyo, excessive groundwater pumping was addressed through technological restrictions, including restrictions on the diameter and depth of wells, and construction of industrial waterworks. On the other hand, in Orange County, OCWD introduced a pump t

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Kaplan, Olcay, Nuran Cikcikoglu Yildirim, Numan Yildirim, and Nilgun Tayhan. "Assessment of Some Heavy Metals in Drinking Water Samples of Tunceli, Turkey." E-Journal of Chemistry 8, no. 1 (2011): 276–80. http://dx.doi.org/10.1155/2011/370545.

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The drinking water quality is associated with the conditions of the water supply networks, the pollution and the contamination of groundwater with pollutants of both anthropogenic and natural origin. In this study, water samples were taken from four different waterworks in Tunceli, Turkey and heavy metals concentrations (As, Cu, Cd, Cr, Pb, Ni and Hg) were measured. Four sampling sites were pre-defined in different locations of the city. The obtained results showed that, the heavy metals concentrations in water samples did not exceed the values of WHO (World Health Organization), EC (Europe Co

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Mueller, Uwe, Gerhard Biwer, and Guenther Baldauf. "Ceramic membranes for water treatment." Water Supply 10, no. 6 (2010): 987–94. http://dx.doi.org/10.2166/ws.2010.536.

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Ceramic membranes, different in pore size and membrane material, were applied to remove particulate and dissolved matter from different spent filter backwash water types as well as from dam water. The study was conducted in pilot scale under conditions typical for waterworks at a dam water treatment plant. A comparison of different ceramic membranes implied that total membrane resistance was more influenced by feed water type and by operation than by membrane type for the waters tested. Nevertheless, ceramic membranes seem to accumulate during operation less organic foulants especially polysac

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Hrkal, Zbyněk, Pavel Eckhardt, Anna Hrabánková, Eva Novotná, and David Rozman. "PPCP Monitoring in Drinking Water Supply Systems: The Example of Káraný Waterworks in Central Bohemia." Water 10, no. 12 (2018): 1852. http://dx.doi.org/10.3390/w10121852.

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The Káraný waterworks supplies drinking water to about one-third of Prague, the capital city of the Czech Republic with a population of more than 1 million. The combination of two technologies—bank infiltration and artificial recharge—are used for production of drinking water. The two-year monitoring of PPCPs (pharmaceuticals and personal care products) at monthly intervals observed temporal changes in 81 substances in the source river and groundwater, and the efficacy of contamination removal depended on the treatment technology used. The results showed a very wide range of PPCPs discharged f

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Fujita, Masaki, Shoichi Iwasaki, Keinosuke Inoko, and Kenji Hayashi. "Efficient maintenance method for water supply facilities focused on the carbonation of concrete." Water Practice and Technology 14, no. 1 (2019): 178–88. http://dx.doi.org/10.2166/wpt.2019.004.

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Abstract In water supply facilities such as distribution reservoirs, the inner surface of reinforced concrete (RC) tanks is often coated with resin paint or the concrete cover depth is increased to protect the concrete from surface deterioration. However, there is little published research on carbonation – one of the main causes of concrete deterioration – in relation to RC tanks, leaving room for improvement with regard to methods for preventing surface deterioration. This study discusses the impact of surface coating and environmental conditions on the carbonation rate of concrete based on a

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Čejková, Alžběta, and Simona Poláková. "Growth responses of sessile oak to climate and hydrological regime in the Zbytka Nature Reserve, Czech Republic." Geochronometria 39, no. 4 (2012): 285–94. http://dx.doi.org/10.2478/s13386-012-0017-1.

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AbstractComplex of Nature reservation Zbytka is the rest of various fen vegetation in the northeast part of the Czech Republic. It represents an important spring area which provides high quality potable water for more than 150 000 inhabitants. Waterworks utilization was started in the 1960s and the change of land-use practices has had a strong effect on the ecosystem. Oak chronology has been showing different tree growth trends since the start of the waterworks utilization. Also the occurrences of negative pointer years differ markedly before and after initiation of pumping underground water.

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SHOKOOHY, MEHRDAD, and NATALIE H. SHOKOOHY. "Tughluqabad, third interim report: gates, silos, waterworks and other features." Bulletin of the School of Oriental and African Studies 66, no. 1 (2003): 14–55. http://dx.doi.org/10.1017/s0041977x03000028.

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An early-fourteenth-century capital of the Delhi sultanate, Tughluqabad is a prototype for the planning of many later cities. The ruins of Tughluqabad represent the extent of the architectural design and engineering skills of the time, while the street layout and other urban features remain as the earliest existing example of Indo-Muslim urban planning and its architectural components. In this report the survey of the major fortified gates with their corridors and guard rooms is presented, along with the granaries built to sustain the town in the event of siege or famine. A detailed study of t

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Bridgman, S. A., R. M. P. Robertson, Q. Syed, N. Speed, N. Andrews, and P. R. Hunter. "Outbreak of cryptosporidiosis associated with a disinfected groundwater supply." Epidemiology and Infection 115, no. 3 (1995): 555–66. http://dx.doi.org/10.1017/s0950268800058726.

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SummaryIn an outbreak of cryptosporidiosis in Warrington. a town in North-West England. 47 cases were recorded between November 1992 and February 1993. most within the first month. There was a strong statistical association between cases and residence in an area supplied from two groundwater sources. In a case-control study, a strong association between having drunk unboiled tap water from these sources, and a dose-response relationship were found. Oocysts were not detected in the water supply. During very heavy rainfall one source of water was found to drain surface water directly from a fiel

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Lahti, Kirsti. "Microbial Quality of Drinking Water in Some Finnish Distribution Systems." Water Science and Technology 27, no. 3-4 (1993): 151–54. http://dx.doi.org/10.2166/wst.1993.0338.

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The occurrence of heterotrophic bacteria, Pseudomonas aeruginosa, Aeromonas, total coliforms, faecal streptococci, molds and yeasts in distribution systems of two surface water, two artificial groundwater and two groundwater supplies was examined three times during one year. All water samples studied were free of Pseudomonas aeruginosa and faecal streptococci in 100 ml. Total coliforms were detected in water distributed from one groundwater supply. Aeromonas hydrophila/caviae in the concentration range &lt;1 - 32 cfu/100 ml also occurred in distributed water from the same supply. Molds and

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Grischek, T., D. Schoenheinz, C. Syhre, and K. Saupe. "Impact of decreasing water demand on bank filtration in Saxony, Germany." Drinking Water Engineering and Science 3, no. 1 (2010): 11–20. http://dx.doi.org/10.5194/dwes-3-11-2010.

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Abstract. Bank filtration has been of great importance to the drinking water supply in Germany for many decades. The water quality of pumped raw water from bank filtration sites depends to a high degree on the water quality of the infiltrating surface water and the landside groundwater, the mixed portion of both, as well as the flow and transport conditions in the aquifer. Following the improvement of river water quality and a drastic decrease in water demand during the last 20 years in Germany, the influence of landside groundwater quality has become more important for the raw water quality o

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Frechen, F. B., H. Exler, J. Romaker, and W. Schier. "Long-term behaviour of a gravity-driven dead end membrane filtration unit for potable water supply in cases of disasters." Water Supply 11, no. 1 (2011): 39–44. http://dx.doi.org/10.2166/ws.2011.006.

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The frequentness of serious natural disasters will rise against the background of climate change in the next decades. One of the most severe impacts of natural disasters is the interruption of drinking water supply. Contaminated water causes the death of thousands of people worldwide every year. Mobile waterworks used by aid organizations are sophisticated systems with high demand of energy, skilled personnel and chemicals. They are designed to supply larger communities in the range of (several) thousand people but small and secluded areas can not be reached. The Department of Sanitary and Env

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van der Hoek, J. P., J. A. M. H. Hofman, and A. Graveland. "The use of Biological Activated Carbon Filtration for the Removal of Natural Organic Matter and Organic Micropollutants from Water." Water Science and Technology 40, no. 9 (1999): 257–64. http://dx.doi.org/10.2166/wst.1999.0490.

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Amsterdam Water Supply (AWS) uses Biological Activated Carbon Filtration (BACF) for the removal of natural organic matter in general and the removal of organic micropollutants in particular. In order to minimize costs and environmental burden, it is important to know whether successive reactivations of carbon reduces its effectivity, and whether pesticides are effectively removed after prolonged running times of the carbon filters. The first aspect avoids the necessity of carbon replacement (i.e. costs), while the second aspect reduces the reactivation frequency (i.e. environmental burden). In

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Grischek, T., D. Schoenheinz, C. Syhre, and K. Saupe. "Impact of decreasing water demand on bank filtration in Saxony, Germany." Drinking Water Engineering and Science Discussions 2, no. 2 (2009): 101–26. http://dx.doi.org/10.5194/dwesd-2-101-2009.

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Abstract. Bank filtration has been of main importance for the drinking water supply in Germany for many decades. The water quality of pumped raw water from bank filtration sites depends to a high degree on the water quality of the infiltrating surface water and the landside groundwater, the mixing portion of both as well as the flow and transport conditions in the aquifer. Since the improvement of river water quality and a drastic decrease in water demand during the last 15 years in Germany, the influence of landside groundwater quality has become more important for the raw water quality of wa

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Lipp, P. "State of the art in drinking water treatment by MF/UF in Germany—a survey among MF/UF plants." Water Supply 8, no. 4 (2008): 377–81. http://dx.doi.org/10.2166/ws.2008.085.

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Membrane filtration is increasingly used for treatment in drinking water supply in Germany. MF and UF are applied processes to remove particles from raw waters of different origin. In the frame of a research project founded by the German Gas-and Waterworks Association (DVGW), a survey has been undertaken among a number of 83 plants that were put into operation until the end of 2006. The aim of the project was to gather technical data and practical experience in a database which should help in the design of future MF/UF plants. In the present paper the most important outcome of this project wil

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Al Juboury, Maad F., Musa H. Alshammari, Mohammed R. Al-Juhaishi, et al. "Synthesis of composite sorbent for the treatment of aqueous solutions contaminated with methylene blue dye." Water Science and Technology 81, no. 7 (2020): 1494–506. http://dx.doi.org/10.2166/wst.2020.241.

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Abstract To apply the principles of sustainability, this study aims to prepare the composite sorbent from mixing of solid wastes that resulted from activities of treatment plants for wastewater and water supply. The manufacturing process depends on the mixing of sewage sludge with waterworks sludge at different proportions and the best mixture is modified by ferric nitrate solution. The prepared composite sorbent was evaluated as permeable reactive barrier (PRB) in the capturing of methylene blue (MB) dye presented in the simulated groundwater. Results proved that the suitable mixture of compo

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Hoyer, O., and J. Clasen. "The application of new technologies in the water treatment process of a modern waterworks." Water Supply 2, no. 1 (2002): 63–69. http://dx.doi.org/10.2166/ws.2002.0008.

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The new plant for the treatment of water from the Wahnbach-reservoir went into operation at Siegburg, Germany in 2001. It will have a capacity of 3,600 to 4,800 m3/h and is intended for drinking water supply of the Bonn region. The relatively simple water treatment process achieves its high performance and safety from the sophisticated process layout and control developed from 40 years of research and experience at the Wahnbach Reservoir Association. According to temporal needs permanganate and/or powdered activated carbon can be applied for pretreatment. Flocculation is either possible with A

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Shrestha, Sangam, Kshitij Parajuli, Mukand S. Babel, Shobhakar Dhakal, and Victor Shinde. "Water–energy–carbon nexus: a case study of Bangkok." Water Supply 15, no. 5 (2015): 889–97. http://dx.doi.org/10.2166/ws.2015.046.

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An understanding of the nexus between water and energy and greenhouse gas (GHG) emissions is essential for sustainable water resources management. While a number of such studies on understanding this nexus have been carried out in the recent past, there have been virtually no studies that have done so for Asian cities. This study aims to plug this gap by analyzing the water–energy–carbon (WEC) nexus for Bangkok, the capital city of Thailand. Using mostly secondary data, and through interactions with concerned stakeholders, the study revealed that more than 335 GWh of energy is used per year fo

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Mocanu, Catalina Raluca, and Liviu Valentin Balanescu. "Water Quality Improvement Using Renewable Energies." Mathematical Modelling in Civil Engineering 10, no. 2 (2014): 25–30. http://dx.doi.org/10.2478/mmce-2014-0009.

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Abstract To reduce the negative effects of eutrophication processes in water bodies it is necessary to improve water quality by ensuring the necessary oxygen concentration. The paper proposes a new innovative solution for the improvement of lake water quality. The premises for the implementation of the experimental floating platform which will aerate the lake waters will be presented. To give a specific view over the oxygen dispersion into the lake, numerical simulations in CFD software will be presented in different cases. The protection of drinking water resources against pollution is a comm

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Chaudhuri, Sriroop, Mimi Roy, Louis M. McDonald, and Yves Emendack. "Water for All (Har Ghar Jal): Rural Water Supply Services (RWSS) in India (2013–2018), Challenges and Opportunities." International Journal of Rural Management 16, no. 2 (2020): 254–84. http://dx.doi.org/10.1177/0973005220946661.

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Sustainable delivery of drinking water of adequate quantity/quality sits at the core of rural development paradigms worldwide. The overarching goal of this study was to assess operational performance of rural water supply services (RWSS) in India to help authorities understand challenges/shortfalls vis-à-vis opportunities. Data on habitation-level coverage, aggregated by states between 2013 and 2018, were obtained from the National Rural Drinking Water Programme (NRDWP) database, against two water supply norms, namely, 40 lpcd and 55 lpcd (litres per capita per day). Results indicate that cert

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Ali, Israa M., and Ayad A. H. Faisal. "Remediation of Simulated Landfill’s Leachate Using Waterworks Sludge and Other Conventional Materials." Association of Arab Universities Journal of Engineering Sciences 26, no. 3 (2019): 45–56. http://dx.doi.org/10.33261/jaaru.2019.26.3.006.

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The possibility of utilizing waterworks sludge as byproduct from water supply treatment plant for the remediation of simulated leachate contaminated with cadmium, dissolved organic matter (COD), and ammonia nitrogen (NH3-N) was investigated through batch study in comparison with conventional sorbents specifically activated carbon and ion-exchange resin Amberlite IR120 Na. Batch sorption experiments of single and multi-components systems were conducted to represent the acetogenic phase (pH= 5.5). Results proved that the sludge, activated carbon and ion-exchange resin are efficient sorbents for

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Nagy-Kovács, Zsuzsanna, Balázs László, Elek Simon, and Ernő Fleit. "Operational Strategies and Adaptation of RBF Well Construction to Cope with Climate Change Effects at Budapest, Hungary." Water 10, no. 12 (2018): 1751. http://dx.doi.org/10.3390/w10121751.

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The objective of this paper is to give an overview on the Hungarian experience of river bank filtration (RBF) systems. The study addresses the conflict, which arises between the stochastic character of river water quantity and quality, and the required standard of drinking-water supply. Trends in water levels, flow, and water quality are discussed, along with technical measures and operational rules that were developed for implementation of RBF systems. This paper also provides an overview of the average lifespan of the wells and operational strategies. The emerging reconstruction and recondit

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Govorova, Zhanna, Nikita Podlesnov, and Vadim Govorov. "Devices for cleaning tap water." E3S Web of Conferences 97 (2019): 01027. http://dx.doi.org/10.1051/e3sconf/20199701027.

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The condition of the water distribution network of the centralized water supply and its high wear, at the same time with other factors, affect the quality of drinking water transported to the consumer of drinking water. The most common causes of the secondary pollution of drinking water during its transportation are considered, as a result of which the concentration of dissolved and undissolved impurities and corrosion products increases, unpleasant smells and tastes appear in the water, microbiological and parasitological indicators deteriorate. Along with measures to improve the technology o

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Lenkey, László, Zoltán Hámori, and Péter Mihálffy. "Investigating the hydrogeology of a water-supply area using direct-current vertical electrical soundings." GEOPHYSICS 70, no. 4 (2005): H11—H19. http://dx.doi.org/10.1190/1.2000288.

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The drinking water of Budapest (Hungary) is supplied by wells located along the Danube River. In one of the water-supply areas, groundwater polluted by nitrate flows from the upper terrace of the river toward the lower terrace and the production wells. In order to protect the wells from pollution, the waterworks of Budapest has to know the hydrogeology of the area in detail. Since groundwater flow strongly depends on the type and distribution of the subsurface materials, we made 230 dc vertical electrical soundings (VES) in the lower terrace over an area of 6 [Formula: see text] to map the sub

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Ando, A., Y. Kajiyama, and N. Takigawa. "Study on deterioration of water treatment capability of granular activated carbon (GAC) in Osaka City." Water Supply 6, no. 2 (2006): 245–51. http://dx.doi.org/10.2166/ws.2006.076.

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To supply safe, good-quality tap water, Osaka Municipal Waterworks Bureau (OMWW) introduced an advanced water treatment system that incorporates ozonation and granular activated carbon (GAC) treatment into conventional treatment processes. By March 2000, all water purification plants in Osaka City were equipped with advanced water treatment facilities. This new treatment system has successfully removed odours and flavor and reduced trihalomethane. GAC treatment, the last stage of the water treatment, plays a vital role in removing organic matter in water, in conjunction with ozonation. However

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AOKI, Haruo. "A study of the technique for applying wooden pipes to water supply from the view-point of the Tatsumi Waterworks." HISTORICAL STUDIES IN CIVIL ENGINEERING 19 (1999): 83–88. http://dx.doi.org/10.2208/journalhs1990.19.83.

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