non-revenue water Articles

  • Non-Revenue Water – A Growing Issue for Water Utilities

    Each day, billions of gallons of water are lost worldwide to various factors, including leaks, water main failures, theft and metering inaccuracies. Not only does this represent the waste of a precious resource that many people do not have reliable access to, it also represents a massive amount of lost revenue for the utilities that provide water services. In developed nations, ...


    By Pure Technologies

  • The Challenge of Reducing Maynilad`s Non-Revenue Water

    Non-revenue water (NRW), poses a very big challenge to many water utilities today. Reducing if not totally eliminating non-revenue water remains the primary concern not only in the Philippines and the Asian region but also world-wide, especially in these times where sources of drinking water supply is rapidly declining. Better and more efficient water supply management is needed to optimize ...


    By IWA Publishing

  • Tackling Non-Revenue Water by Identifying Small Leaks

    Small leaks sink big ships – the same can be said for large-diameter pipes in utility networks. While large leaks or ruptures are seen as newsworthy stories accompanied by images of water flowing down the streets; smaller leaks can often be more devastating. Left undetected, they can add up over time, contributing significantly to ...


    By Pure Technologies

  • Developing a non-revenue water reduction strategy: planning and implementing the strategy

    ABSTRACTA companion paper dealt with the tasks required to investigate and assess the components of non-revenue water (NRW). This is a necessary first step in a diagnostic approach to understanding the condition of the network, the way that it is operated, and the constraints acting upon it. This second part deals with the tasks and tools required to address the constraints, and to develop a ...


    By IWA Publishing

  • Non-revenue water and cost recovery in urban India: the case of Bangalore

    This paper examines the issue of non-revenue water (NRW) in urban India, taking the city of Bangalore as a case study. Using empirical evidence from a survey conducted among 601 low-income households in Bangalore, we investigate the major sources of NRW for water utilities and propose policy recommendations based on the analysis. Our key finding is that public stand posts and public wells, which ...


    By IWA Publishing

  • Melaka Gets Tough on Non Revenue Water Loss and Claims Two Awards

    Melaka is a relatively small state on the southwest side of the Malay Peninsula with a city so rich in history and beauty that it is listed as a UNESCO World Heritage site. With a population around 850,000, the Melaka Water Company Ltd. (SAMB) manages roughly 270,000 service connections for commercial and residential customers. In 2008 the city embarked on an aggressive plan to upgrade ...


    By Singer Valve Inc.

  • Monitoring hydrocarbons in Bilge water - Case study

    The Situation Various processes onboard ships, such as machinery wash-down, maintenance, and leakage, generate oily wastewater. This contaminated water flow collects in the bilge of the ship. Marine diesel, lubricating oils, grease, as well as other contaminants may be present in bilge water. The bilge water is discharged overboard, with oil and grease concentrations in the discharged ...

  • Leaks on large-diameter trunk mains – more than just non-revenue water reduction

    Providing safe, reliable access to clean water is a major challenge for utilities around the world considering that roughly 12 billion gallons of water are lost every day globally. While many utilities are aware of the importance of reducing Non-Revenue Water (NRW), reducing it can be a challenge. The World ...


    By Pure Technologies

  • Understanding the 3 Types of Arsenic Removal Used for Wastewater

    With the onset of the Industrial Revolution and the development of internal combustion engines and new manufacturing technologies, fresh water became an essential raw material not only for production, but for cooling purposes in manufacturing processes. However, when fresh water is used in an industrial process, it creates industrial wastewater composed of a variety of chemicals and other raw ...

  • Turning waste into wattage

    How we are helping to meet the growing demand for waste energy recovery It’s a sign of the times that more and more companies and organisations are now looking at ways to capitalise on the waste material their production process produces rather than having to pay a third part to take it away for them.  One reason of course is the high cost of scrappage.  Another is the ...


    By Todaysure Limited

  • 99% of Interceptor contamination remediated - Case study

    What is an Interceptor Tank? An interceptor tank is a trap used to filter out hydrocarbon pollutants from rainwater runoff. It is typically used in road construction and on petrol station forecourts to prevent fuel contamination of the water table via runoff. Petrol interceptors work on the premise that some hydrocarbons such as petrol and diesel float on the ...


    By Slick Solutions

  • 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

  • Assessing Water system revenue risk: Considerations for market Analysts

    Water utilities are on the brink of extraordinary investments to replace aging infrastructure— the Environmental Protection Agency estimates that by 2030, capital expenditures of more than $300 billion will be needed to safeguard drinking water. Yet this investment comes at a time when Americans’ water use habits are changing1—resulting in considerable uncertainty for water ...


    By Ceres

  • Turning Carbon Emissions Into A Revenue Stream

    On the heels of the EPA’s new carbon rules proposed by President Obama on June 2, I wanted to take a closer look at a potential disruptive technological breakthrough: taking CO2 waste streams and turning them into saleable, value-added feedstocks. Certainly, the deployment of renewables, energy efficiency, smart grid, and energy storage technologies offer some of the most cost-effective ...


    By GLOBE Foundation

  • Catalyst-Based Non-Chemical Water Treatment

    Catalyst-Based Device Reduces Calcite Buildup, Requires Minimal Maintenance According to the US Geological Survey, more than 85 percent of the United States has hard water.1 In plumbing, hard water leaves calcite deposits that restrict water flow by occluding pipes. In water heaters, calcite coats heating elements, causing them to overheat and eventually fail. Standard approaches to ...

  • "A Non-Chemical Water Treatment for Cooling Towers"

    Untitled Document Introduction This paper will describe a case study of a ...


    By Dolphin WaterCare

  • Add To Your Revenue By Adding Bird Control

    As a contractor, you've learned that one of the best ways to increase revenue is to increase the number of services you offer your customers. And one of the most revenue enhancing services you can offer today is bird proofing. Regardless of the size or type of building, and no matter what the job, bird proofing is a vital part of protecting any building or structure from the damages imposed by ...


    By Bird-B-Gone, Inc.

  • Dutch Dewatering, a Dry Construction Site Revenue Model

    It was the spring of 2010 - during the establishment phase of BBA Pumps Inc. At the time, I went to visit several construction sites in the Netherlands to see how successful dewatering was being organized. Talk about a small country showing how great it can be! It was an absolutely eye-opening experience. The Netherlands is one of the most densely populated countries ...


    By BBA Pumps

  • Utility and non-state water service provision for the urban poor

    Inadequate water service provision to the urban poor remains a serious problem in low-income countries. Utilities lack the resources, obligations or incentives for service expansion and there may be a long delay before water utilities are in a position to extend services. Non-state water providers, including both formal and informal local private providers, as well as civil society institutions, ...


    By Inderscience Publishers

  • Asbestos in water? How to address ‘non-standard’ samples of industrial and other effluents

    Biohazards and other interferences complicate the employment of off-the-shelf asbestos in water methods by traditional TEM techniques. Laboratories must implement creative strategies to prepare and analyze these samples to produce meaningful analytical data. Laboratory and personnel safety have to be considered before sample handling. The interferences also greatly diminished any reasonable ...

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