Water Utility Articles

  • Water

    Water is the most valuable asset on earth, which determines to a significant extent the development of life in all corners of the world. 95% of the amount of water on earth is chemically bound in rocks making it impossible to utilize and be part of the hydrological cycle. ...


    By Palaplast

  • 3 Water Utilities that Lowered their Arsenic Levels with AdEdge

    Finding an appropriate solution to address arsenic in raw water can be challenging for utilities. Studies have shown that when ingested in high concentrations, it is linked to cancer in the skin, lungs, bladder and kidney, and can cause significant skin changes, such as thickening and pigmentation, as well as other health issues. For this reason, the ...

  • Vacuum sewerage systems – a solution for fast growing cities in developing countries?

    Developed more than a century ago, the potential of vacuum sewerage systems remains underexploited. At the same time, the rapid urbanization in Asia brings about major challenges for municipal utilities. In this context, the GIZ (Deutsche Gesellschaft fuer Internationale Zusammenarbeit) project ‘Integrated Resource Management in Asian Cities: the Urban Nexus’ gives technical advice to ...


    By IWA Publishing

  • Governance, strategy and efficiency of water utilities: the Italian case

    The determinants of the performance of water utilities are a topical issue worldwide. This paper analyzes the relationship between efficiency and corporate governance in Italian water utilities, measured through data envelopment analysis. Using an M-quantile regression model, efficiency estimations are ranked considering relevant governance (board size and composition; firm size) and strategy ...


    By IWA Publishing

  • A Dutch first in the polder - Water Board Zuiderzeeland measures flow rates to achieve sustainability

    The Dutch province of Flevoland lies metres below sea-level. That’s why rain and seepage need to be removed from the polder, some 6 metres up. And that’s the reason Flevoland is drained continuously by seven huge pumping stations. The quantity of energy involved in this is as great as the energy consumption of 4,000 households. Water Board Zuiderzeeland has launched the ‘Energy ...


    By Eijkelkamp Soil & Water

  • Assessment of variable speed pumps in water distribution systems considering water leakage and transient operations

    In this study, the potential economic and hydraulic benefits of utilizing variable speed pumps (VSPs) in water supply systems are reported. A simple water distribution network simulation is carried out by EPANET and Bentley HAMMER models to examine variable speed operation. It was found that using VSPs could control and improve performance of the water distribution systems. Where the potential ...


    By IWA Publishing

  • Recent Federal Developments

    TSCA/FIFRA EPA Extends Comment Period For Draft Guidance For Pesticide Registrants On Notifications, Non-notifications, And Minor Formulation Amendments: On October 5, 2017, the U.S. Environmental Protection Agency (EPA) issued a notice of extension of the comment period for the draft guidance  ...


    By Bergeson & Campbell, P.C.

  • Revealing causal pathways to sustainable water service delivery using fsQCA

    This study aimed to build on theory and practice regarding the combinations of conditions that influence water service sustainability when external partners are involved. The study investigates 26 well projects that have been implemented in developing countries with the assistance of Engineers Without Borders-USA (EWB-USA). Using past literature on sustainable water service delivery in ...


    By IWA Publishing

  • Resilience-based water main rehabilitation planning in a multi-hazard context

    Due to aging beyond the intended design life, many water mains in the USA are currently deteriorated resulting in an increasing number of failures which challenge water utilities with diminished supply reliabilities, loss of treated water, and numerous other societal issues. Water pipeline systems serving regions that are naturally vulnerable to external hazards, such as earthquakes, pose ...


    By IWA Publishing

  • Further investigation on water-hammer control inline strategy in water-supply systems

    This paper revisited the inline re-design strategy used for water-hammer control into an existing steel-piping water supply system to further promote a comprehensive exploration of the entire design driven parameters set, including pressure-head, circumferential-stress and radial-strain behaviors. This strategy consists of replacing a short-section of the transient sensitive region of the ...


    By IWA Publishing

  • Report: Energy and utility companies can help preserve water resources

    By investing in new technologies and infrastructure, together they can help reduce problems associated with water shortages While both humans and their commercial operations rely on fresh water more than ever, sources of clean water are becoming scarcer. Climate change, droughts, increasing agricultural needs, water pollution, and global economic and population growth all contribute to ...


    By Fluence Corporation

  • Working with complexity: a participatory systems-based process for planning and evaluating rural water, sanitation and hygiene services

    Individuals working within the water, sanitation and hygiene for development (WASH) sector grapple daily with complex technical, social, economic, and environmental issues that often produce unexpected outcomes that are difficult to plan for and resolve. Here we propose a method we are calling the ‘Participatory Systems-based Planning and Evaluation Process’ (PS-PEP) that combines structural ...


    By IWA Publishing

  • Adapting the IWA water balance to intermittent water supply and flat-rate tariffs without customer metering

    The International Water Association water balance is an approach applied worldwide for determining and analysing water losses in water distribution systems (WDS) up to the point of customer metering. Thus, water losses occurring ‘before’ a customer meter are at the expenses of the water utility while water lost or wasted ‘after’ the meter is paid for by the customer. This applies to systems ...


    By IWA Publishing

  • Investigating unaccounted for water and its components in Zomba City water supply system, Malawi

    This study assessed Unaccounted for Water (UFW) in Zomba City, Malawi in 2009 and quantified its real and apparent loss components. The study was carried out in the period January–May 2009 and focussed on three selected water supply zones (Airwing, Malonje and Sadzi) especially for determination of the components of non-revenue water (NRW). Field measurements of flow and utility records formed ...


    By IWA Publishing

  • Emergency tank showers specified for Major water utility companies

    Personnel within the water utilities industry are often exposed to remote and demanding environments due to the dangerous chemicals, such as sulphites and chloride, used in water treatment. To protect the safety of the workforce International and European standards state that emergency safety equipment should be installed within 10 seconds’ reach and on the same level as a potential hazard. ...

  • The Rising Cost of Water

    There's a common economic paradox about the price tag on drinking water and value. Our current economic climate places prices on things predicated on scarcity and value. Water pricing is now more widespread, with the dual goal of expanding supply and encouraging more responsible use. So long as water remained abundant, the cheapness of drinking water is not likely to change. However, the price of ...

  • U.S. utilities increasing water reuse investment

    Decreased technology costs are prompting more municipal water utilities in the United States to invest in new water reuse infrastructure. In fact, a new forecast projects more than $18 billion in water reuse and desalination projects are on tap in 17 states, according to Bluefield Research analysts. Although water scarcity is a conventional driver for this type of project, the analysts say the ...


    By Fluence Corporation

  • Application of a water balance adapted to intermittent water supply and flat-rate tariffs without customer metering in Tiruvannamalai, India

    Establishing the water balance developed by the International Water Association (IWA) is a worldwide applied approach to determine and analyse water losses in water distribution systems (WDS). The water balance covers those parts of a WDS within the responsibility of the water utility. Water losses occurring ‘before’ a customer meter are at the expense of the utility, while water lost or ...


    By IWA Publishing

  • Flood recovery project - Case Study

    Greener Waste Technology has been working with a utility company to combat the effects of flooding on a filter bed works. The works in question is low lying and next to a river which recently burst its embankment and flooded the filter beds entirely. The flood distributed large volumes of silt and mud onto the filters blocking the beds and starving the indigenous bacteria population of oxygen ...


    By Greener Waste Technology

  • How the City of Tavares, FL utilizes a Vacuum Excavator - Case Study

    The City Director came to Phillip Clark, Water Supervisor for Tavares, FL – America’s Seaplane City, with details of a surplus in the budget. “What can we add to our fleet to work smarter and not harder? What out there in the industry is new and innovative?” He asked. Mr. Clark is constantly researching and reading about what is innovative and groundbreaking. He says that ...


    By Vac-Tron Equipment

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