water supply planning Articles

  • 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

  • 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

  • Impact of extreme climate events on water supply sustainability in Egypt: case studies in Alexandria region and Upper Egypt

    Water resources in Egypt have become stressed due to changes in climate patterns. Egypt is characterized by two seasons, a mild, wet winter and a hot, dry summer. In recent years, many areas have become vulnerable to the impact of extreme climate events. The impact of these events on water supplies has become more pronounced. This study states that there is a tangible impact of extreme climate ...


    By IWA Publishing

  • Timing is everything - Getting your heat network plan to work

    For affordable housing providers, maintaining heating and hot water supplies to residents is one of the biggest challenges; especially when it comes to frequently involving the care of vulnerable user groups, and routinely gaining access to occupied properties.  Although communal heating schemes (featuring shared boiler plant or other more sustainable heat sources) can offer significant ...


    By Switch2 Energy Limited

  • Water mixing in waste lagoons

    Man-made lagoons have been used worldwide for the treatment of domestic and industrial wastewater, it seems, forever. All waste lagoons were first designed and thoughtfully planned considering their locations, soil makeup, and waste reduction processes prior to being implemented. The biological process of organic waste reduction is always a consideration of waste lagoon designs. There are three ...


    By Reliant Water Technologies

  • 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.

  • How big is the distributed energy opportunity for water and wastewater utilities?

    Energy costs for water utilities are large, and growing Energy is a significant cost for many water utilities, and costs are growing as more energy-intensive forms of water supply, including desalination, are being used. Energy is typically the second-largest utility budget item in developed countries, after labour. In many developing countries, energy can account for 70% or even more, of ...

  • ROV Inspections of Water Towers: Underwater Drone Used to Save Diver’s Time

    Mountain West Commercial Diving currently uses their Deep Trekker underwater drone to conduct ROV inspections or potable water towers. Aim to exceed the client’s expectation while adhering the highest standards in industry compliance and safety; that is the goal of Mountain West Commercial Diving (MWCD). Based out of Hazelton, Idaho, MWCD has over 25 years of experience in successfully ...


    By Deep Trekker Inc.

  • A strategic framework for sustainable water resource management in small island nations: the case of Barbados

    Physical scarcity of freshwater is often given as the reason for water shortages, but it is usually its management that can either create or resolve the problem. This will be illustrated by the case of Barbados. The water management issues are typical of many small island states, some of which are particularly vulnerable to water scarcity, especially in the context of climate change. Barbados ...


    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

  • Water, sanitation and hygiene (WASH) in schools: results from a process evaluation of the National Sanitation Campaign in Tanzania

    This study assesses the intermediate outcomes of the Tanzania National Sanitation Campaign (NSC) for schools. A cross-sectional study was designed as part of a process evaluation of the NSC in Tanzania on 70 primary schools and 54 regional and district education officers. Data was collected between August and December 2014 using questionaires, key informant interviews, and desk studies. The ...


    By IWA Publishing

  • Systematic risk management approach of household drinking water from the source to point of use

    The water safety plan (WSP) approach is being widely adopted as a systematic approach to improving the safety of drinking water. However, to date, the approach has not been widely used for improving the safety of drinking water in those settings where people have to collect water away from their home. Most rural areas in South Africa still consume unsafe water despite WSP implementation and ...


    By IWA Publishing

  • Clean water is a basic human right, and we can and should make it affordable to everyone

    Ask someone in Flint, Michigan, or São Paolo, Brazil — the list of cities rocked by water disasters seems to grow each day — how much safe water is worth. Worried about contamination and drought, it might be a pretty penny. But the ability of people to actually pay for the full cost of water — from ...


    By Ensia

  • The importance of groundwater monitoring

    Groundwater monitoring is an essential element in any environmental information system. Based upon validated groundwater monitoring data, information is derived on which decisions can be made. Constant monitoring provides the necessary data input for your smart environment and is basically the basis of the decision making process concerning spatial planning and climate change adaptation. As in ...


    By Eijkelkamp Soil & Water

  • What You Should Know about Arsenic Treatments

    The nutrients that you put into your body directly impact your health. If you consume water with harmful substances, bacteria, or metalloids, it could create serious issues. While not a metal, arsenic is considered a metalloid because it contains many of the same properties as metallic elements. Typically found in soil, arsenic is harmful when ingested. Unfortunately, many Americans unknowingly ...

  • Case study - E.ON Power Plant Nuremberg

    Water level, water flow and discharge are monitored at two inflows of the E.ON electricity power plan Franken I, using the OTT SLD, with horizontal Doppler-flow sensors. The purpose of this measurement is to optimize the operation of the plan which partly covers the demand for electricity in the conurbation of Nuremberg-Fuerth-Erlangen.  OTT technologies for this project have been in use ...


    By The OTT Hydromet Group

  • Improving natural gas liquefaction plant performance with process analyzers – Case Study

    LNG is natural gas in its liquid state with high energy density, which makes it useful for storage and transportation over long distances from the gas fields to the consumers. LNG is recovered from natural gas in large-scale liquefaction plants. Process automation is a key issue in LNG plants to ensure cost efficient plant operation and high product quality. Process analyzer deliver important ...

  • Case study - Ireland Groundwater Monitoring Program

    To fulfill the EU Water Framework Directive (WFD) requirements, a groundwater monitoring program was established by the Environmental Protection Agency of Ireland. This program focuses on providing information to assess the environmental status of surface and groundwater bodies. Read about the program and the example installation in the Bog of the Ring. Technology Used: OTT Orpheus Mini, OTT ...


    By The OTT Hydromet Group

  • Avondale Foods effluent treatment - Case Study

    Introduction Avondale Foods (Craigavon) Ltd. is one of the UK's leading manufacturers and suppliers of coleslaw, wet salads, side salads, vegetable accompaniments, soups, sauces and mayonnaise to retail and foodservice customers throughout Britain and Ireland. The company has a team of over 380 people working in its state-of-the-art facility, with all products being manufactured on the ...


    By Water Tecnik Ltd.

  • Case study - Buoy-based temperature profiling in the Bavarian Lakes

    In summertime a temperature stratification occurs in deep lakes – the surface water is warm, but deep down the water is cold.  This has considerable influence on the nutrient balance and the biological habitat in these lakes. Due to generally higher air temperatures induced by the climate change, both change and have effects on the life conditions of the ecosystems in the lakes. ...


    By The OTT Hydromet Group

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