engineered water distribution Articles

  • Landfill pumps for Gas well dewatering - Case Study

    AutoPumps Keep the Power On for Thousands of Florida Homes Waste Management's Springhill Regional Landfill near Campbellton, Florida generates "green" energy by extracting and burning the methane in landfill gas. Its $7 million landfill gas energy (LFGE) plant, with six large Caterpillar engines running 24 hours a day, 7 days a week, is capable of producing 4.8 million watts of power. ...


    By QED Environmental Systems

  • Los Angeles County WRRF Embraces Codigestion

    Technology to produce food waste slurry key to project implementation - and helps generators comply with California organics recycling mandates. The Sanitation Districts’ JWPCP in Carson (CA) treats an average of 280 million gallons/day of wastewater. One of the two anaerobic digestion tanks above has been used for codigestion, with the second serving as the control. Photos ...


    By BioCycle Magazine

  • What is a wastewater treatment system and how does it work?

    For industrial companies producing wastewater as part of it’s process, some type of wastewater treatment system is usually necessary to ensure safety precautions and discharge regulations are met. The most appropriate wastewater treatment system will help the facility avoid harming the environment, human health, and a facility’s process or products (especially if the wastewater ...


    By SAMCO Technologies, Inc.

  • Oil Sampling Best Practices (Part 2)

    Understanding Dynamic Particle Equilibrium in Closed Loop Systems Dynamic Equilibrium Condition (DEC) is defined as a steady state condition where the normal wear rate in a machine results in no net gain or loss of particles. ...


    By Spectro Scientific

  • A history of water distribution systems and their optimisation

    Water distribution systems have a very long and rich history dating back to the third millennium B.C. Advances in water supply and distribution were followed in parallel by discoveries and inventions in other related fields. Therefore, it is the aim of this paper to review both the history of water distribution systems and those related fields in order to present a coherent summary of the ...


    By IWA Publishing

  • Study on failure rate analysis for water distribution pipelines

    Many of the waterworks facilities in Japan were constructed during the rapid economic growth period. Today, the deterioration and renovation of these aged facilities have become a pressing issue. There are approximately 600,000 km worth of water pipelines laid out across Japan, accounting for about 70% of the nation's water-related assets (totalling ¥40 trillion). To provide water that is safe to ...


    By IWA Publishing

  • Current Trends in Modelling Water Distribution Systems

    Untitled Document Hydraulic Modelling is emerging from the infrastructure planning offices of our water utilities, where it continues to play a vital role in optimising capital investment projects, to take a ...


    By Innovyze

  • Developing Decentralised Distributed Generation in Africa

    Many countries in the developed world created power generation networks based upon large centralised power generation stations with significant investment in power transmission and distribution networks. From the African context this has not happened yet there is a huge need to increase power generation capacity. The thought of addressing this through a small number of large gas, ...


    By Clarke Energy

  • A PSO approach for optimum design of dynamic inversion controller in water distribution systems

    Water distribution systems have become immensely complex due to ever increasing water demand and sporadic availability of water at the sources. Generally, water management issues are handled through human intervention, which naturally leads to incompetent trial and error procedures. Moreover, the non-linear system dynamics and sequential pumping operations involved in the water distribution ...


    By IWA Publishing

  • Energy efficiency in water distribution systems - A path to an ideal network - AGS experience

    Water utilities’ responsibility to deliver quality and reliable service under a sustainable basis requires an increasingly efficient management and therefore an asset management strategy that ensures high levels of service, safe and reliable drinking-water quality and an appropriate network performance. In Portugal, IAM gave a step forward with a recent Portuguese decree law (Decreto-Lei ...


    By IWA Publishing

  • Leakage fault detection in district metered areas of water distribution systems

    Fault tolerance and security in drinking water distribution operations are important issues that have received increased attention in the last few years. In this work the problem of leakage detection is formulated within a systems engineering framework, and a solution methodology to detect leakages in a class of distribution systems is proposed. Specifically, the case where water utilities use ...


    By IWA Publishing

  • Geostatistical techniques for approximate location of pipe burst events in water distribution systems

    This paper focusses on the customisation and further enhancement of the recently developed data-driven methodology for the automated near real-time detection of pipe bursts and other (e.g. sensor faults) events at the district metered area (DMA) level. Assuming the availability of pressure/flow data from an increased number of sensors deployed in a DMA, the aim is to: (i) overcome the ...


    By IWA Publishing

  • InfoWorks WS: the latest innovations in water supply and distribution modeling

    Introduction and backgroundInfoWorks WS from Wallingford Software is the leading software solution that integrates asset and business planning with water supply and distribution network modeling. The powerful hydraulic simulation within InfoWorks is exceptionally fast, robust and efficient, especially for very large networks. InfoWorks WS engine was introduced in 1998 and a major release every ...


    By Innovyze

  • Impact of incomplete mixing in the prediction of chlorine residuals in municipal water distribution systems

    This paper investigates the mixing phenomena in pipe junctions in water distribution systems. Network simulation models frequently assume that mixing at pipe junctions is complete and instantaneous. In the present study, a series of experiments using tee and cross junctions with varying inflows and free chlorine concentrations were carried out in the Hydraulic Laboratory of the Institute of ...


    By IWA Publishing

  • Graph-based approach for generating virtual water distribution systems in the software VIBe

    Application of virtual case studies (VCS) is a well established technique in environmental engineering to test measures, approaches, models or software. However, preparation of VCS for an infrastructure network is a tedious task. In literature, approaches can be found which generate very simplified VCS, which are only partly comparable with real world case studies. VCS which are more comparable ...


    By IWA Publishing

  • An agent-based modeling framework for sociotechnical simulation of water distribution contamination events

    In the event that a contaminant is introduced to a water distribution network, a large population of consumers may risk exposure. Selecting mitigation actions to protect public health may be difficult, as contamination is a poorly predictable dynamic event. Consumers who become aware of an event may select protective actions to change their water demands from typical demand patterns, and new ...


    By IWA Publishing

  • Methodology for Forensic Investigation of Potable Water Quality in Municipal Distribution Systems

    Abstract During routine regulatory potable water quality sampling in distribution systems related to the Total Coliform Rule, utilities can sometimes experience anomalous detections of total coliform bacteria and/or fecal coliform bacteria in the distribution system samples. Frequently, the regulatory-required retesting of the same sample locations reveals no detection of bacteria, and thus ...

  • Environmental Engineering case study

    USX Corporation, Fairless Hill, Bucks County Evaluated hydraulics of water distribution system and its capability to meet very high fire flow requirements for Industrial Park. Assisted with presentation and discussion with Falls Township. Upper Makefield Township, The Arbors Reviewed and approved design of water supply ...


    By Mercuri & Associates, Inc.

  • Integrating evolution strategies and genetic algorithms with agent-based modeling for flushing a contaminated water distribution system

    Water utilities can prepare for water distribution hazards, such as the presence of contaminants in the pipe network and failure of physical components. In contamination events, the complex interactions among managers' operational decisions, consumers' water consumption choices, and the hydraulics and contaminant transport in the water distribution system may influence the ...


    By IWA Publishing

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