Water Data Articles

  • The Visual Guide to Troubleshooting Your Valves

    It’s 2 a.m., and you’ve received an emergency call—one of your valves isn’t functioning properly. If you’re like most water management professionals, your first instinct is to call the factory for ...


    By Singer Valve Inc.

  • Pure Technologies And Wrc Unite For Leak And Gas Pocket Survey On Critical Main For Irish Water And Cork County Council

    “The project was an excellent example of working in concert through every aspect of the planning stage, with everyone invested in a successful outcome…” The first time new parties come together to work on a pipeline inspection project, they face a lot of pressure to perform. The team must instill trust and understand each other to ensure the project goes off without a ...


    By Pure Technologies

  • Permeation testing of PET bottles in the production of mineral water - Case Study

    S.Pellegrino mineral water is recognized globally as one of the leading mineral waters on the market. Flowing from a thermal springs in the heart of the Orobic Alps, its properties were known and appreciated since the thirteenth century. In the late nineteenth century it reached peak popularity. In response to the growing demand for entire cases of water from the springs in 1899 the modern ...


    By Systech Instruments Ltd

  • Confirming Natural Attenuation Processes at a Coastal Site - Case Study

    Past waste disposal practices at a California coastal site resulted in a groundwater plume containing CVOCs (mainly chlorinated ethenes [CEs] and 1,1-dichloroethane) migrating offshore towards a marine harbor. CVOCs are present in the sediment porewater adjacent to the shoreline, but concentrations decreased significantly between 2000 and 2015, and NA in the marine sediments was suspected. To ...


    By SIREM

  • Strategies for the electric regulation of pressure control valves

    In water distribution networks (WDNs), the classic pressure control valves (PCVs) are mechanical/hydraulic devices aimed at maintaining the target pressure just downstream or upstream of the PCV pipe, namely pressure reduction or sustaining valves. From a modelling standpoint, the major drawback of such local control is that classic PCVs may require target pressure varying over time with the ...


    By IWA Publishing

  • Mobility up the sanitation ladder following community-led total sanitation in rural Zambia

    Scaling the sanitation ladder decreases exposure to various illnesses including diarrheal disease, soil-transmitted helminths and trachoma. In rural Zambia, community-led total sanitation (CLTS) has been deployed to help Zambians scale the sanitation ladder. Analysis of monthly routine surveillance data of village-level sanitation coverage of 13,688 villages shows that villages moved up the ...


    By IWA Publishing

  • What to know about tiling when it comes to water quality concerns

    Would you know what agricultural drainage was if you weren’t in the industry? Water quality issues continue to dominate the headlines and agriculture is getting caught in the blame game when water pollution sources are noted. As farmers and drainage contractors, ...


    By Prinsco, Inc.

  • How to Make a Positive Impact on the Environment This Earth Day

    This Saturday, April 22, 2017, marks the 47th annual Earth Day. Earth Day was founded by US Senator Gaylord Nelson, who was concerned that environmental issues were not being addressed. He created the first Earth Day on April 22, 1970, as an educational “teach-in,” with celebrations taking place at ...

  • Get more out of Water Resources Engineering Models

    The effort required to develop water resources engineering models can be significant. But once developed, in many instances the models are only evaluated for a limited, or a single set of conditions. The results and predictions obtained from these evaluations are the ones used in design, presented in reports and conveyed to decision makers and the public. This approach might serve ...


    By XP Solutions

  • Real time data improves winter service in Amsterdam

    In the course of the last winter, the city of Amsterdam tested the mobile road weather sensor MARWIS on a patrol vehicle. They installed the sensor in front of the vehicle shortening the distance between the Bluetooth transmitter and the receiver. Most of the users install the sensor at the back of their car or at the side of their truck, but in this test, the ...

  • The role of packaged water in meeting global targets on improved water access

    Packaged water (as either refill, bottled, or sachet water) has become an important element of water security in many low- and middle-income countries, owing to poor reliability and lack of piped water infrastructure. However, over time and across countries, the Demographic and Health Surveys monitoring program has inconsistently classified packaged water components as either improved or ...


    By IWA Publishing

  • Energy management for smart community

    Under the project title “Smartes Yspertal” an energy management concept for municipal administration buildings was created in the 1,900 inhabitant community in Lower Austria. Savings potential and inefficiencies in public buildings are thus to be shown. Microtronics has equipped the buildings with data loggers of the type ...

  • Measuring sporadic gastrointestinal illness associated with drinking water – an overview of methodologies

    There is an increasing awareness that drinking water contributes to sporadic gastrointestinal illness (GI) in high income countries of the northern hemisphere. A literature search was conducted in order to review: (1) methods used for investigating the effects of public drinking water on GI; (2) evidence of possible dose–response relationship between sporadic GI and drinking water consumption; ...


    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

  • Pipeline Management Lessons: Old Isn’t Always Bad

    Underground pipelines are among the most valuable, yet neglected assets in the public arena. They provide essential services such as the supply of drinking water and collection of wastewater. Despite their critical importance, for decades many municipal utilities have operated under a “bury and forget” mentality – with little emphasis on long-term management of their aging ...


    By Pure Technologies

  • The Ganges water treaty: 20 years of cooperation, on India's terms

    International cooperation has become a universal mandate for governing transboundary waterbodies. Diverse stakeholders promote cooperation as a desirable, if not indispensable, approach from which to achieve sustainable and equitable benefits and for the creation of transboundary waterbodies. However, calls for international water cooperation operate from the presupposition that cooperation is ...


    By IWA Publishing

  • Synthesis of the modified nanofiber as a nanoadsorbent and its dye removal ability from water: isotherm, kinetic and thermodynamic

    In this paper, poly(vinyl alcohol) (PVA) nanofiber was prepared and modified by diethylenetriamine (DETA) and ethylenediamine (EDA) in the presence of glutaraldehyde (GA). Dye removal ability of the modified nanofiber (PVA/DETA/EDA/GA) as a nanoadsorbent from water was studied. Fourier transform Infrared (FTIR) and scanning electron microscopy (SEM) were used to investigate the characteristics ...


    By IWA Publishing

  • Removal of toxic Congo red dye from water employing low-cost coconut residual fiber

    The coconut residual fiber (CRF) is the major byproduct obtained during production of virgin coconut oil. Its application as a biosorbent for adsorption of Congo red was investigated. The CRF was subjected to different pretreatments, namely, pressure cooking, hexane treatment, acid treatment and their combinations. The pretreatment of CRF with the combination of hexane, acid, and pressure ...


    By IWA Publishing

  • The Evolution of Collector Monitoring Systems

    The vast majority of chain and flight collectors in operation throughout the world do not have any form of monitoring system installed to protect against operational failure. Traditional safety devices consist of a shear pin sprocket device, with a limit switch, designed to protect the drive system if a load or torque exceeds the working load of the  ...


    By Brentwood Industries, Inc.

  • Tech Tip: SeaFET/SeapHOx pH Pre-conditioning

    The SeaFET/SeapHOx must condition to the deployment environment for at least 48 hours before pH data is considered reliable. The Shallow SeaFET’s external pH sensor must be powered and exposed to the deployment site’s water for 2–5 days before obtaining quality data. You will often see the external pH gradually rise until it meets the internal reference pH within ~0.05 pH after ...

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