urban water system Articles

  • Crumbling Concrete Water Networks Linked to Common Water Treatment Additive

    Concrete distribution and sewer networks are being corroded at an alarming rate partly because of a commonly used additive in the domestic drinking water and wastewater treatment process according to published reports in the journal Science. In countries throughout the world from industrialized nations like Australia and the USA to developing nations like Colombia, Ghana and the Philippines, the ...

  • The Internet of Water Is Saving Lives While Battling Pollution

    The Problem A condition known as Legionnaires' disease has made headlines after it killed a dozen people in Flint, Michigan in 2014 and 2015 and sickened hundreds in  ...


    By Griswold Water Systems

  • Role of decentralised systems in the transition of urban water systems

    Provision of conventional centralised water, wastewater and stormwater systems for urban municipal services has been common practice for over 100 years. These systems center around the protection of human health, ensuring reliable water supply and minimizing flooding; often with minimal consideration of the environmental and ecological impacts associated with fresh water extraction and wastewater ...


    By IWA Publishing

  • Urban Hydrology

    The provision and disposal of water for urban populations is as old as the development of cities themselves. Unrestrained development has made the task ever more difficult and hydrologists and civil engineers face constant pressures to stay on top of the challenges of providing sufficient supplies and adequate treatment/disposal of effluents. Urban areas have long existed as centres of trade, ...


    By IWA Publishing

  • Adaptable urban water demand prediction system

    In this work, identification of 24-hours-ahead water demand prediction model based on historical water demand data is considered. As part of the identification procedure, the input variable selection algorithm based on partial mutual information is implemented. It is shown that meteorological data on a daily basis are not relevant for the water demand prediction in the sense of partial mutual ...


    By IWA Publishing

  • Enhancing resilience in urban water systems for future cities

    In future cities, urban water systems (UWSs) should be designed not only for safe provision of services but should also be resilient to emerging or unexpected threats that lead to catastrophic system failure impacts and consequences. Resilience can potentially be built into UWSs by implementing a range of strategies, for example by embedding redundancy and flexibility in system design, or by ...


    By IWA Publishing

  • Adapting urban water systems to climate change

    This handbook on adaptation of urban water systems to climate change is an initiative of the SWITCH project1 and the result of a collaboration between ICLEI – Local Governments for Sustainability, the International Water Association (IWA) and the UNESCO-IHE Institute for Water Education. It draws on the research and findings from the SWITCH1 and PREPARED2 EU Framework Programme projects. ...


    By IWA Publishing

  • Applying incentives to increase revenue water in urban systems

    The study utilises cross-sectional data from utilities of the National Water and Sewerage Corporation of Uganda to test application of extrinsic incentive theory on non-revenue water (NRW) reduction. Applying a multiple regression model, we find that the effect of level of incentive payments on revenue water (billing efficiency) depends on the amounts of staff inputs, service coverage and water ...


    By IWA Publishing

  • Application of the urban water use model for urban water use management purposes

    The aim of this work is to present an application of the urban water use (UWU) model, which is a support decision tool to define the best group of efficient water use measures for UWU management purposes. Therefore, the UWU was developed under integrated urban water management (IUWM) and strategic planning principles to promote a systemic approach for decision taking. The IUWM considers the ...


    By IWA Publishing

  • A dynamic urban development model designed for purposes in the field of urban water management

    Urban drainage systems are a critical part of city infrastructure. Population growth and urban development can put severe pressure on these systems, especially due to sealing of surfaces and land use change. For a comprehensive adaptation of urban water infrastructure to constantly changing and evolving systems, a detailed simulation of the dynamics in city development is crucial. This can be ...


    By IWA Publishing

  • Decision support system for metabolism-based transition to urban water systems of tomorrow

    A decision support system (DSS) tool for the assessment of intervention strategies in an urban water system (UWS) with an integral simulation model called ‘WaterMet2’ is presented. Lists of intervention options and performance indicators are exposed by the DSS for the user to define intervention strategies and metrics for their comparison. The quantitative and risk-based metrics are calculated ...


    By IWA Publishing

  • Urban Hydroinformatics: Data, Models and Decision Support for Integrated Urban Water Management

    Urban Hydroinformatics: Data, Models and Decision Support for Integrated Urban Water Management is an introduction to hydroinformatics applied to urban water management. It shows how to make the best use of information and communication technologies for manipulating information to manage water in the urban environment. The book covers the acquisition and analysis of data from urban water ...


    By IWA Publishing

  • Alternatives for safe water provision in urban and peri-urban slums

    In response to rapid urbanization throughout the global South, urban and peri-urban slums are expanding at an alarming rate. Owing to inadequate financial and institutional resources at the municipal level, conventional approaches for safe water provision with centralized treatment and distribution infrastructure have been unable to keep pace with rapidly growing demand. In the absence of ...


    By IWA Publishing

  • On data requirements for calibration of integrated models for urban water systems

    Modeling of integrated urban water systems (IUWS) has seen a rapid development in recent years. Models and software are available that describe the process dynamics in sewers, wastewater treatment plants (WWTPs), receiving water systems as well as at the interfaces between the submodels. Successful applications of integrated modeling are, however, relatively scarce. One of the reasons for this ...


    By IWA Publishing

  • Combining multimedia models with integrated urban water system models for micropollutants

    Integrated urban water system (IUWS) modeling aims at assessing the quality of the surface water receiving the urban emissions through sewage treatment plants, combined sewer overflows (CSOs) and stormwater drainage systems. However, some micropollutants tend to appear in more than one environmental medium (air, water, sediment, soil, groundwater, etc.). In this work, a multimedia fate and ...


    By IWA Publishing

  • Modelling the urban water system of Alexandria using the Aquacycle model

    As in other cities in Egypt, water demand in the metropolitan area of Alexandria is rapidly increasing over time, as a result of urban expansion, amelioration of living standards and industrial development. As the River Nile is the main source of freshwater supply, concerns arise regarding a potential reduction in Alexandria's allocation quota, which could affect population growth at the ...


    By IWA Publishing

  • Ancient water and sanitation systems – applicability for the contemporary urban developing world

    The idea of implementing ancient water and wastewater technologies in the developing world is a persuasive one, since ancient systems had many features which would constitute sustainable and decentralised water and sanitation (WATSAN) provision in contemporary terminology. Latest figures indicate 2.6 billion people do not use improved sanitation and 1.1 billion practise open defecation, thus ...


    By IWA Publishing

  • Multiple conceptions of sustainable urban water systems: problem or asset?

    This paper examines various conceptions that researchers and practitioners in the sector have about sustainable urban water systems, to discern what these conceptions are and whether they are complementary or divergent. The study is based on a literature review and field studies, including semi-structured interviews. The results show that the conceptions held by the various actors are largely ...


    By IWA Publishing

  • A socio-technical model to explore urban water systems scenarios

    This article reports on the ongoing work and research involved in the development of a socio-technical model of urban water systems. Socio-technical means the model is not so much concerned with the technical or biophysical aspects of urban water systems, but rather with the social and institutional implications of the urban water infrastructure and vice versa. A socio-technical model, in the ...


    By IWA Publishing

  • Roadmap guideline: A manual to organise transition planning in Urban Water Cycle Systems

    A roadmap enables decision makers to plan and implement a pathway to achieve desired objectives. At the same time it serves as an excellent communication tool. The TRUST roadmap links strategy to future needs and actions and incorporates a plan for needed adaptations ...


    By IWA Publishing

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