Water Supply Articles

  • Quadratic head loss approximations for optimisation problems in water supply networks

    This paper presents a novel analysis of the accuracy of quadratic approximations for the Hazen–Williams (HW) head loss formula, which enables the control of constraint violations in optimisation problems for water supply networks. The two smooth polynomial approximations considered here minimise the absolute and relative errors, respectively, from the original non-smooth HW head loss function ...


    By IWA Publishing

  • Simulation of water scarcity in a leap-forward developing arid region: a system dynamics model of Xinjiang Uygur Autonomous Region

    The leap-forward development policy emphasizes water resource scarcity. Given the importance of water resources to an economy, especially in arid areas, this paper explores various management strategies that could be used in the semi-arid region of Xinjiang to increase the effectiveness and efficiency of multifunctional water projects and support sustainable ‘leap-forward’ economic growth. ...


    By IWA Publishing

  • Salting icy roads affects water supplies

    It’s basic chemistry: Saline water’s freezing point is much lower than fresh water’s, which can help keep ice from forming on roads. To reduce winter accidents, municipal and state workers often apply salt and other compounds to icy roads, because if not accidents start to happen and people end up in need cash in emergency. Unfortunately, this may have unintended consequences ...


    By Fluence Corporation

  • In a Future of Extremes, Southeastern States Must Have Water Management Policies

    Introduction Climate change is expected to have an impact on every type of weather phenomenon that occurs on Earth.  The nature and magnitude of the impact varies with the location on the planet and the type of weather in question, and coupled climate-weather models, have different degrees of uncertainty about different types of weather (though these models are dramatically improving ...


    By Climate Institute

  • Singapore a model for effective water management

    Singapore continues to be a model of effective water management as more and more countries begin experiencing water scarcity. To some, the Asian city-state (which occupies an area roughly a quarter the size of Rhode Island) may seem an unlikely beacon for water efficiency. But, to achieve water security and self-sufficiency, residents have been helping leaders meet national water management ...


    By Fluence Corporation

  • How John Snow Changed the Way We Look at Water Supply Systems, Microorganisms, and Infectious Diseases with Data Mapping.

    Hearing the name ‘Jon Snow’ may bring Kit Harington’s face to the forefront of many people’s mind as an important character in ‘Game of Thrones’ but, for water treatment and public health professionals, there is another iconic ‘John Snow’ that may come to mind. Dr. John Snow, an English ...


    By LuminUltra Technologies Ltd.

  • The elimination of open defecation and its adverse health effects: a moral imperative for governments and development professionals

    In 2015 there were 965 million people in the world forced to practise open defecation (OD). The adverse health effects of OD are many: acute effects include infectious intestinal diseases, including diarrheal diseases which are exacerbated by poor water supplies, sanitation and hygiene; adverse pregnancy outcomes; and life-threatening violence against women and girls. Chronic effects include ...


    By IWA Publishing

  • Knowledge-based planning of groundwater treatment trains for an efficient drinking water supply system in urban areas

    This paper presents knowledge-based planning of the most appropriate treatment schemes for drinking water supply (DWS) systems, jointly applying statistical tools and experimental tests. Milan City was chosen as the case study, its DWS system being composed of more than 20 DWS units, widespread in the urban area. First, multivariate statistical techniques (factor analysis and cluster analysis) ...


    By IWA Publishing

  • Case study - Remote location requires minimum concept

    A leading power supply provider in Austria took on the project of monitoring water levels at a power plant in Montenegro, in two remote locations where no infrastructure is available for installation. On top of that, site visits could only occur every two months, so a device with remote data transmission capabilities was key. Because of these factors, the customer needed an easy solution for ...


    By The OTT Hydromet Group

  • Removing VOCs from Municipal Water Supply - Case Study

    QED E-Z Tray® Air Strippers Removing Volatile Compounds in Cheyenne’s Drinking Water The U.S. Army Corps of Engineers (USACE) – Omaha District has funded the design and construction of a new groundwater treatment plant in Cheyenne, Wyoming to treat groundwater from the city’s Borie well field.  This important groundwater supply was apparently ...


    By QED Environmental Systems

  • Why Water Management Professionals Can’t Afford to Ignore Innovation

    Innovation in the water management industry is born from the collaboration between water managers, operators, engineers and manufacturers who set out to resolve problems or improve service levels that impact all parts of the supply chain. This is usually the result of early adopters either at the field level or in engineering ...


    By Singer Valve Inc.

  • Reducing the burden of rural water supply through greywater reuse: a case study from northern Malawi

    Greywater reuse has potential for non-potable applications that conserve freshwater resources in water-stressed areas especially in sub-Saharan Africa. The feasibility of reusing greywater for domestic activities in a rural area of Malawi, Africa, was evaluated from microbiological and public acceptance perspectives. Median Escherichia coli concentrations for eight domestic greywater sources ...


    By IWA Publishing

  • Case study - Egyptian Propylene & Polypropylene Company (EPP)

    In 2010 Proserve has signed a consultancy agreement with Egyptian Propylene & Polypropylene company “ EPP” to manage their Sea water and Brackish water plants which has the capacity of 10,000 M3/D each.The scope of consultancy included and not limited to the followings: Supply of operation management staff Operations management Data acquisition & monitoring: ...


    By ProServe Egypt

  • Risk management for water supply pipes

    In this paper, the risk of water supply systems as a combination of hydraulic analyses (consequence) and failure probability of pipelines based on the actual condition is discussed. On the one hand, a stepwise closing of pipelines calculates the influence on customer's supply which represents the importance of a pipe. On the other hand, based on existing failure statistics, age and material ...


    By IWA Publishing

  • Failure risk assessment in water network in terms of planning renewals – a case study of the exemplary water supply system

    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 ...


    By IWA Publishing

  • Customer satisfaction survey: the case of urban water supply services in Southern Ethiopia

    Service quality and customer satisfaction are very important concepts that water enterprises must understand and measure from the customers' perspective to satisfy their needs. The main objectives of this research were to assess the level of customer satisfaction on urban water supply services of Southern Region, Ethiopia, and identify major determinants. Quantitative data were collected from ...


    By IWA Publishing

  • A holistic approach to water supply network operation – using desalination to improve cost efficiency

    Seqwater is one of Australia's largest water businesses, with one of the most geographically spread and diverse asset bases. This includes 37 water treatment plants (WTPs), more than 600 km of bulk water supply pipeline, and the Gold Coast Desalination Plant (GCDP) constructed as part of the South East Queensland Millennium Drought response. The production of desalinated water has a greater ...


    By IWA Publishing

  • ITOXcontrol safeguards intake Romanian drinking water - Case Study

    The Romanian water supply company Apavital has installed a monitoring station to safeguard the intake of water from the river Prut. The monitoring station is part of an integrated monitoring that signals sudden changes in the water quality of the rivers, enabling Apavital to take appropriate measures, in the worst case a stop of the intake. The iTOXcontrol is developed by the Dutch company ...


    By microLAN B.V.

  • Download Your Copy of the Water Industry Report

    At the recent World Water-Tech North America summit, leading water experts and utility CEOs gathered to discuss global water challenges, strategies for fostering innovation and the principal factors that influence investment decisions. If you do business in the water sector, this is the only ...


    By Rethink Events Ltd.

  • How risk assessments can make a city more resilient to weather extremes

    Balancing water supply and demand—while addressing current and future vulnerabilities to extreme conditions such as drought—is essential to safeguarding the wellbeing of our communities. Is your city at risk? Identifying where cities have problems and determining how much is at risk is the first step to becoming a strong, resilient city. In states like California, water shortage is ...


    By CH2M Hill Companies, Ltd.

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you