water well screen Articles

  • Pulp & Paper Water Treatment - A look at optimizing water resource management

    Application Case Study (Pulp/Paper Operations) The pulp and paper industry has traditionally been a consumer of large amounts of fresh water and power. Recently, increased focus has been given to the optimized efficiency of paper mills and to the environmental sustainability footprint of the industry. Therefore, water resource management has become a more critical factor ...

  • Modeling of radial well lateral screens using 1D finite elements

    A water supply system including radial wells (RWs) is usually large, extending several tens of kilometers horizontally and is dozens of meters deep. An RW is a vertical shaft with lateral screens, which radially penetrate the soil. A large and complex 3D finite element (FE) mesh also needs to include laterals with cross-sectional dimensions measured in centimeters. An adequate representation of ...


    By IWA Publishing

  • Wire Wrapped Rod-based Screens For Water Wells stainless steel 316 10 inch

    Wire Wrapped Rod-based Screens For Water Wells 1.Introduce about Lida Factory, Xinxiang Lida Well Screen Factory which  is  specialized in the production of ...

  • Evaluation of a Horizontal Well

    Background: Air Sparging Air sparging is an in-situ remediation technology where air is injected into the saturated zone of an aquifer. It is an alternative to conventional ex-situ pump and treat systems for remediation of contaminated ground water. It is necessary to understand the pattern of air flow that will occur in the subsurface in order to determine the optimal placement, ...

  • Regional modeling of wells

    The ability to represent wells in a regional three-dimensional numerical groundwater model is crucial for many modeling exercises. Such wells can either be measurement wells where groundwater levels are measured as a function of time, or wells can be pumping wells in which water is removed from the well and a drawdown cone is created in the water table surrounding the well. There are numerical ...


    By SoilVision Systems Ltd.

  • Singleton well site

    Client: P.R. Singleton Limited Date: 2008 – 2009 Value: £20,000 CL Voelcker was appointed by P.R.Singleton Limited to assist with the variation of permit conditions for their on-shore oil well site in West Sussex. The site is an existing oil well site for which additional capacity is required. The initial ...

  • Extraction well design for DNAPL recovery.

    The potential for downward migration of dense nonaqueous phase liquid (DNAPL) into deeper portions of a saturated hydrogeologic unit has important implications for successful groundwater remediation. Little information has been published regarding the design of extraction wells that allow DNAPL recovery without simultaneously creating a conduit for cross contamination by vertical migration ...


    By Hargis + Associates Inc

  • Nebraska inline Traveling water screen - case study

    A Nebraska irrigation district installed this IWS traveling water screen system to help protect pipelines leading as well as pivot irrigation lines.  Previous years required repeated cleaning of pivot filters and nozzles. Since the install, they have seen dramatic reduction in downtime and less need for back-flushing of lines for clean out. This project included: ...


    By International Water Screens

  • Validation of the InQuest nitrate screen

    Purpose To determine if SDI’s InQuest Nitrate FS test kit produced results that were comparable to laboratory analysis of N03-N at levels below 10 ppm. Procedure The University of Georgia Cooperative Extension Services operates an Agricultural Services Laboratory that does analytical analysis of water samples for anyone in the State. One service this lab offers is a standard ...


  • SCS - Spiral Channel Screen

    Here we grow again! More new products from Arlat Arlat releases it’s ‘SCS’ Spiral Channel Screen, for use in small channels and Septage Receiving stations. Ready for release this year, Arlat is adding another screen design to their product line up. The SCS is designed for channels that are 2’ (24”) in width or smaller. Arlat has received numerous call from sales representatives and ...

  • Headworks Screening for Smaller Plants

    Water treatment facilities in smaller towns and villages, as well as treatment works supporting institutions, prisons, resorts or remote facilities, have difficult choices to make when selecting a headworks system. All require a solids control strategy, but lower flows and smaller budgets limit the available equipment options. A number of different types of equipment can be used to meet these ...


    By JWC Environmental

  • Implications of observed and simulated ambient flow in monitoring wells

    The authors of this paper present compelling evidence that conventional monitoring wells act as vertical conduits whenever vertical hydraulic gradients are present (i.e., at most sites). Vertical flow within wells due to natural hydraulic gradients not only makes it impossible to accurately define the vertical distribution of dissolved contaminants within the aquifer, but it can transport ...


    By Solinst Canada Ltd.

  • Domestic well database development and integration into a GIS: an approach for managing ground water resources

    Connecticut is dominated by rural communities which rely upon individual domestic wells in fractured crystalline bedrock for water supply. The individualized nature of ground water usage has made ground water resource planning on a regional or townwide basis non-existent. In recent years there has been increased development and concerns expressed regarding the sustainability of the fractured ...


    By IWA Publishing

  • Effective Removal of Zebra Mussels with Amiad Screen Technology

    Introduction The zebra mussel, native to the Black and Caspian Seas, has spread in the past few decades to waterways throughout the world mostly via ballast water. Zebra mussels, when non-indigenous to the environment, pose a serious threat to intakes of facilities that rely on fresh and brackish surface water. The mussel colonies obstruct the flow of water through the pipelines eventually ...

  • A method for reducing purge volumes in deep monitoring wells: a purging experiment.

    Regulatory agencies often require three well casing volumes or more be purged prior to collection of groundwater samples for chemical analysis. Costs are high for testing and disposing of potentially hazardous purge water; therefore, efforts must be made to minimize waste-water volume while obtaining representative groundwater samples. Lockheed sponsored a purge experiment on two deep monitor ...


    By Hargis + Associates Inc

  • DTI installs 3 blind horizontal remediation wells in cobble

    The Issue An active retail gas station next to a wetland area has benzene and trimethylbenzene plumes in a water table aquifer containing sand, gravel and cobbles. Rock fragments and boulders several feet in diameter lie in the vadose zone, between the ground surface and the water table. Business at the gas station would slow down or stop for an extended period of time if a vertical ...

  • San Juan Island well production and tank level monitoring case study

    San Juan Island is a popular resort destination whose population fluctuates with the season and the arrival of Orca whales and salmon runs. To get to the island, you must first drive an hour north of Seattle to the city of Anacortes. From there you take a two-hour ferry ride through a 130 island group to arrive at the 20 mile San Juan Island, which is at the waterway entrance to Puget Sound. Bob ...


    By Mission Communications, LLC

  • A framework for screening sites at risk from contaminants of emerging concern

    Trace levels of a variety of currently unregulated organic chemicals have been detected in treated wastewater effluents and surface waters that receive treated effluents. Many of these chemicals of emerging concern (CECs) originate from pharmaceuticals and personal care products that are used widely and that frequently are transported “down the drain” to a wastewater treatment plant (WWTP). ...


    By John Wiley & Sons, Ltd.

  • Columbia River Gets a Vertical Fish Screen - case study

    The Columbia River is huge and runs past deserts, towns, major cities and numerous recreation areas. It is a major fishery, as well. So this screen had to protect and exclude fish, handle natural and urban debris, and operate in a constricted space.  We designed and installed large vertical fish screens with hoods. Now the irrigation canal is clean and clear of river debris. The fish are ...


    By International Water Screens

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