water flow control system Articles

  • Moderator shares how upcoming conference will foster development of new technologies in fractured rock

    Ken Goldstein, CGWP, will moderate a session titled “High-Resolution Characterization in Fractured Rock” at the upcoming 2017 NGWA Conference on Fractured Rock and Groundwater, October 2-3 in Burlington, Vermont. Goldstein is senior vice president, water and environmental systems at Louis Berger. He recently ...

  • Pumping Wastewater into Existing Pressure Sewer

    Romtec Utilities designs, manufactures, and supplies pumping systems for many different applications. Our systems include all structural, all mechanical, all electrical, and all communications systems in a single purchase. Many of our systems are designed and supplied to handle sewage and wastewater flows in a lift station design. In many scenarios, these lift stations ...


    By Romtec Utilities Inc.

  • Why evaluate hydraulic fluid compatibility?

    When introducing a new control fluid to hydraulic systems, it is important to ensure that the new liquid or mixture is of equal or superior quality to the previous fluid. If the new mixture is incompatible, precipitate may form and result in an overall inferior fluid. This can speed up clogging or damage the system. When a manufacturer of construction machinery releases a new line of bulldozers ...


    By Sterlitech Corporation

  • Generation of daily naturalized flow at ungaged control points

    The development of daily naturalized flow in the water rights analysis package (WRAP) model at ungaged stations has difficulties because of low daily flow measurement at gaged stations, low available monthly naturalized flow, and budget constraints. This study proposes a procedure for developing daily naturalized flow at ungaged stations. The soil and water assessment tool (SWAT) model was ...


    By IWA Publishing

  • High-Flow odor control news - Case Study

    Summary Casa Grande, AZ – Plant and operations management at a 6 mgd wastewater treatment plant (WWTP) and water reclamation facility (WRF) here report elimination of odor complaints through installation of a 9000-cfm biofiltration system. The selection of the biofiltration technology instead of an initially planned wet chemical scrubber option ...


    By Biorem Technologies Inc.

  • Controlling scale in water systems helps prevent legionella

    The Legionella bacterium, Legionella Pneumophila (LP), the fundamental agent of Legionnaire’s Disease, is a water-based organism, which causes infection when inhaled in an aerosol form. Legionnaires' Disease acquired its name in 1976 when an outbreak of pneumonia occurred among persons attending a convention of the American Legion in Philadelphia. Later, the bacterium causing the illness ...

  • Aeration System Upgrade Increases Flow Capacity and Reclaimed Water Availability

    Read the full Case Study: Replacing Brush Rotors with Aire-O2 Tritons® Increases Flow Capacity and Reclaimed Water Availability Overview: In 2012, ...

  • Development of a self-rechargeable digital water flow meter

    The objective of this paper is to present the feasibility of a self-rechargeable digital water flow meter (SRDFM) system for water pipes using the latest data processing and wireless communication technologies while causing negligible water pressure drop (head loss). The system uses a Pelton turbine generator to power the electronic circuit, which processes and transmits the signals generated by ...


    By IWA Publishing

  • Modeled Flow Duration Variations, Pollutant Discharges, and Costs for Different Stormwater Controls

    ABSTRACTRunoff volume and pollutant discharges increase with development, with associated detrimental receiving water effects. These increases can be partially controlled by installing stormwater control practices, such as wet detention pond at outfalls, using conservation design controls such as grass swales and bioretention devices, and by improved development practices that reduce the amounts ...

  • Wireless Pakscan controls the flow at Nevada gold mine - Case Study

    A gold mine in Nevada USA has been able to take advantage of wireless Pakscan digital control for newly installed IQ intelligent electric valve actuators on the water filtration plant. The Newmont underground mine utilises Geotube® dewatering technology to separate sediment from both ground and extraction process water. The filter systems, which are installed above ground, are fabricated from ...


    By Rotork

  • Microbial Control and Sanitization of Membrane-Based Pure Water Treatment Systems

    Introduction Today's high technology water purification systems are designed to remove many types of impurities. One of the most difficult to deal with is microbiological contamination. Microbial growth in a water system presents two problems: it not only reduces water quality, but if left unattended, the problem can 'grow' to reduce system performance and life. Biofouling can cause a decrease ...


  • Robust water quality controller for a reverse osmosis desalination system

    This paper presents two-degree-of-freedom (2-DOF) robust loop-shaping control methodology to stabilize a reverse osmosis (RO) desalination system operating under significant uncertainties, external disturbances and measurement noises, and to reduce product water cost. This method has the advantages that no information about the plant uncertainty is required and it can deal with external ...


    By IWA Publishing

  • All About Low Flow Carpet Cleaning Systems

    Rug cleaners are used for cleaning carpets, mats, rug, upholstery, and other soft surfaces. These are low-powered machines suitable for cleaning soft surfaces. The output pressure and temperature, often the indicators of cleaning power for cleaning equipment, are relatively low for these machines. The output pressure of even the industrial rug cleaners does not exceed 500 psi. Only the most ...


    By Daimer Industries Inc.

  • Continuous nonlinear model predictive control of a hybrid water system

    Incorporating weather forecasts in the control of land surface water levels requires predictions of the net inflow to the water system. This net inflow is the combined flow of an incoming load (rain, evaporation, etc.) and outgoing pump rates. Because the pump costs are considerable, optimal pump schedules have minimal energy consumption. Model predictive control (MPC) is able to compute, revise ...


    By IWA Publishing

  • Online flow measurement

    Background The undershoot weir in Hohensaaten was built in 1913. It has three openings and regulates the discharge from the Oderbruch and from the Finow canal into the Hohensaaten-Friedrichsthaler-waterway. Moreover, it protects parts of the Oderbruch against Oder floods. The weir controls the waterlevels in the Havel-Oder-waterway and in the reach of Niederfinow- Hohensaaten. ...


    By The OTT Hydromet Group

  • Portable Hydrant Flow Meters

    Leading the way for hydrant verification flow and pressure measurement Langham Industrial Controls strive to provide the most innovative market leading hydrant verification instrumentation. The Horizontal Standpipe Flow Meter provides unrivalled accuracy of ± 0.5% within a wide flow range. The swan neck design ensures that the AquaMasters electromagnetic sensor is always full and as the ...

  • Wet weather flow management

    For years, population explosion, demographic shifts, urbanization, aging infrastructure, limited water resources, and economic development have driven our water market, and with that our world’s need for total water solutions. ...


    By CH2M Hill Companies, Ltd.

  • Controlling the water level of a river dam case study

    SmartScan25 provides an efficient solution for controlling water level of the Wardha river reservoir from a distance of 40m (131ft) thus preventing draughts and floods to the district of Amravati, India. Upper Wardha Dam is build up on the Wardha River at a height of 36m (118ft) and 7km (4.35mi) length and situated on the boundary of Amravati and Wardha Districts, India. Controlling the water ...

  • A promising approach of reject water treatment using a tidal flow constructed wetland system employing alum sludge as main substrate

    This study examined a novel reuse of alum sludge, an inescapable by-product of drinking water treatment process when aluminium salt is added as a coagulant, as the main medium in a laboratory-scale multi-stage constructed wetland (CW) system for reject water treatment. Such reject water is a main concern in municipal wastewater treatment plant (MWWTP) for increasing the organic and nutrient ...


    By IWA Publishing

  • Controlling Odors from Waste Water Treatment Plants

    INTRODUCTION In recent years, there is growing public awareness of odors from waste water treatment plants, which mainly stems from the following observed trends: The public is less tolerant of objectionable odors from waste water treatment plants; Many waste water treatment plants have seen residential, commercial, or other developments established near the facility ...


    By PRD Tech, Inc.

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