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Water supply systems

Xem 1-20 trên 80 kết quả Water supply systems
  • This book incorporates selected topics on theory, revision, and practical application models for water supply systems analysis. A water supply system is an interconnected collection of sources, pipes, and hydraulic control elements (e.g., pumps, valves, regulators, tanks) delivering consumers prescribed water quantities at desired pressures and water qualities. Such systems are often described as a graph, with the links representing the pipes, and the nodes defining connections between pipes, hydraulic control elements, consumers, and sources.

    pdf158p namde02 12-03-2013 76 19   Download

  • Posts study analysis of the current state of the water supply system including water supply, treatment plant and pipeline system helps identify existing problems in the system. Through mixed methods, hazards or hazardous events are identified as a basis for risk assessment by using semi – quantitative method to assess raw risk and residual risk for each hazard. Priority risks are identified to focus on proposing the possible solutions that will improve the performance and management of domestic water supply systems.

    pdf6p tandlanh 15-08-2019 19 0   Download

  • Ensuring adequate and safe water supply is a top priority in human life, especially cities or residential areas. Accessibility and safety in water supply services requires good operation in the components of domestic water supply systems including water sources, water treatment plants, and distribution network systems. This means that the cooperation and coordination of stakeholders (SH) should be good to help maintain the stable system. Therefore, it is necessary to analyse stakeholder involvement, indicating their responsibilities and roles in maintaining the system.

    pdf10p tandlanh 30-12-2019 12 1   Download

  • Water supply and sanitation are amongst the most basic requirements of life. For the past 50 to 150 years people living in Europe, America and a few capital cities elsewhere around the globe have come to take for granted the provision of a virtually limitless supply of clean, safe water and the seemingly effortless removal of all human wastes ‘out of sight and out of mind’.

    pdf149p tuanloc_do 04-12-2012 52 4   Download

  • Greenhouse Gas emission from high-rise buildings has been increasing mainly due to excessive energy consumption of the HVAC system, structural system and electrical system. Electricity consumption for pump system accounts for 15% of total electricity usage in building. Therefore the reduction of electricity in operation is crucial to the overall reduction of GHGs in urban areas.

    pdf9p vinobita2711 31-05-2019 1 0   Download

  • This paper presents results from the recent study in 2018 by the authors conducted for the Vietnam Association of Water Supply and Sewerage (VWSA) on the selected 19 urban water supply systems, representing different regions across the country, who has available database to VWSA for the analysis. The VWSA study was to acknowledge the top water utilities in Viet Nam based on their PIs [6]. This paper is to provide key information of performance of water utilities based on their PIs comparing to average values from available database of Vietnamese urban water sector.

    pdf12p cothumenhmong9 04-01-2021 0 0   Download

  • Part one cold water and supply systems, part two hot water supply systems, part three heating systems, part four fuel characteristics and storage, part five ventilation systems, part six air conditioning,... As the main contents of the Tài liệu Building Services. Invite you to consult.

    pdf579p bigg421996 03-12-2015 43 5   Download

  • The research for the potential development is necessary in order to find a way to improve the village groundwater supply system management including operation and maintenance systems. All of which are the fundamental public utilities that are required for improving quality of life.

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  • Self-priming Jet pumps manufactured in stainless steel AISI 304, suitable for water supply, domestic pressure boosting and small irrigation systems, pool and tank emptying and general clean water pumping. Maximum working pressure: 6 bar • Maximum liquid temperature: 35°C according EN 60335-2-41 for domestic uses 45°C for other uses

    pdf176p thiensonet 27-12-2010 481 138   Download

  • The aim of this research was to determine the irrigation performance of Sarigöl, Bag, and Üzüm Water User Associations (WUAs) in the vicinity of Sarigöl and Alaflehir using remote sensing techniques. For this purpose, the performance of the irrigation system for the 2004 irrigation season (May to September) was determined according to 5 indicators, namely overall consumed ratio (ep), relative water supply (RWS).

    pdf10p aquaman27 15-01-2019 10 1   Download

  • The objective of this study is to assist public authorities to identify and address the future challenges of urban water supply, sanitation, and flood management in cities. In order to do that, this report uses the conceptual framework of Integrated Urban Water Management (IUWM) as a holistic set of planning and management tools incorporating all components of the urban water cycle to help develop efficient and flexible urban water systems in the future. The future of water in African cities: why waste water? argues that a new approach to urban water management is needed in Africa.

    pdf226p konbetocroi 03-01-2013 37 5   Download

  • The Federal Reserve plays an important role in the U.S. payments system. The twelve Federal Reserve Banks provide banking services to depository institutions and to the federal government. For depository institutions, they maintain accounts and provide various payment services, including collecting checks, electronically transferring funds, and distributing and receiving currency and coin. For the federal government, the Reserve Banks act as fiscal agents, paying Treasury checks; processing electronic payments; and issuing, transferring, and redeeming U.S.

    pdf19p machuavo 19-01-2013 48 5   Download

  • This meant that the plants were doing little in the beginning to clean the inflow. In the beginning it was not known if the plants would survive such a harsh environment. But after five months the plants have proven that they are a plant well designed for this environment. Some benefits about these plants are that they produce no seed, have no rhizomes, and can only reproduce by physically moving a piece of the plant. At five months, the plants are three feet in height and the root systems are now reaching the bottom of...

    pdf12p tainhacmienphi 19-02-2013 51 3   Download

  • .Risk Management of Water Supply and Sanitation Systems .NATO Science for Peace and Security Series This Series presents the results of scientific meetings supported under the NATO Programme: Science for Peace and Security (SPS). The NATO SPS Programme supports meetings in the following Key Priority areas: (1) Defence Against Terrorism; (2) Countering other Threats to Security and (3) NATO, Partner and Mediterranean Dialogue Country Priorities. The types of meeting supported are generally "Advanced Study Institutes" and "Advanced Research Workshops".

    pdf319p ngoctu239 27-11-2012 68 2   Download

  • The current water shortage in Egypt is 13.5 Billion cubic meter per year (BCM/yr) and is expected to continuously increase. Currently, this water shortage is compensated by drainage reuse which consequently deteriorates the water quality. Therefore, this research was commenced with the objective of assessing different scenarios for 2025 using the Water Evaluation and Planning (WEAP) model and by implementing different water sufficiency measures. Field data were assembled and analyzed, and different planning alternatives were proposed and tested in order to design three future scenarios.

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  • Saigon River is a major river system and plays an important role in the economic and social development of the Southern key economic region. This paper studies the relationship between canals and the Saigon River. Water quality monitoring data was collected at the Department of Natural Resources and Environment, with 10 parameters (temperature, pH, DO, turbidity, TSS, COD, BOD5, NNH4, P-PO4, coliform) calculated in the period 2007-2016.

    pdf7p camtucau99 20-11-2019 12 0   Download

  • The presence of Blue-green algae (BGA) toxins in surface water sources and recreation is receiving increasing attention around the world as a public health concern. However, potential risks from exposure to these toxins in contaminated health food products that contain BGA have been largely ignored. Toxic BGA produces compound called microcystin. Fine-grained sediment is a natural and essential component of river systems and plays a major role in the hydrological, geo-morphological and ecological functioning of rivers.

    pdf13p kethamoi4 16-04-2020 1 0   Download

  • The agriculture sector nowadays in Palestine relies mostly on conventional energy sources and traditional irrigation ways. Considering some factors such as high costs of fossil fuels and providing new electrical network, especially to remote areas and where grid electricity is either inaccessible or expensive to expand, therefore a solar photovoltaic (PV) powered irrigation system can be a practical choice for irrigating.

    pdf7p partimesinhvien 13-05-2020 12 0   Download

  • The lower section of Ma river system is facing complicated salinization, depending on its morphology, slope, tide regime and the increasing effect of climate change. As a result, for effective exploitation of fresh water (salinity ≤ 1.0‰) it needs to take care of the impact of tide regime on rivers’ salinization. Using data of “History of the tide” of Thanh Hoa Hydrometeorology center in some details to limit damages in water supply for irrigation and living of residents in coastal districts of Nga Son, Hau Loc, Hoang Hoa, Quang Xuong, Sam Son city and Thanh Hoa city

    pdf9p trinhthamhodang1218 18-03-2021 0 0   Download

  • The steady increase in industrialization, urbanization and enormous population growth are leading to production of huge quantities of wastewaters that may frequently cause environmental hazards. Raw or treated waste water is very oft en discharged to freshwaters and results in changing ecological performance and biological diversity of these systems. About 70% of water supplied ends up as wastewater and several natural water reservoirs are being contaminated by untreated sewage/industrial effl uents. This makes waste water treatment and waste water reduction very important issues....

    pdf446p ktcn_1 10-07-2012 113 52   Download

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