variable area flow meter Articles

  • Senix Water Level Sensors Drive Irrigation Automation Project

    Australia’s Water Crisis Irrigation management is serious business in Australia especially within the Murray-Darling Basin, a 1,000,000 square kilometer watershed that is home to Australia’s most productive agricultural land. The basin’s 23 rivers have ...


    By Senix Corporation

  • Netherlands’ Mobile Emergency Pumps Provide Rapid Flood Response

    The Western European nation has 20 mobile diesel-driven pumps on standby, ready to assist in national and international emergencies. One of the smallest and most densely populated countries in Western Europe, the Netherlands has nearly 10 million residents who live and work below sea level. Without active water management and primary flood defenses, ...


    By BBA Pumps

  • BBA Mobile Emergency Pumps Provide Rapid Response for Floods

    Netherlands’ Mobile Emergency Pumps Provide Rapid Flood Response In its latest edition, the North American PUMPS & SYSTEMS magazine publishes an in-depth article featuring the history and current usage of emergency mobile pumps. The Western European ...


    By BBA Pumps

  • Sizing and Selecting the Proper Metering Pump: Part 1 of 2

    A typical agriculture or process application can consume large amounts of chemicals during daily operations. While the volumes may be large, though, they must also be very precise, with exact amounts delivered according to strict injection schedules. The pressures—from very high to very low—that the chemicals are injected at must also be governed precisely. This demand for ...


    By Modern Pumping Today

  • Chlorpyrifos and atrazine removal from runoff by vegetated filter strips: Experiments and predictive modeling

    Received for publication September 10, 2008. Runoff volume and flow concentration are hydrological factors that limit effectiveness of vegetated filter strips (VFS) in removing pesticides from surface runoff. Empirical equations that predict VFS pesticide effectiveness based solely on physical characteristics are insufficient on the event scale because they do not completely account for ...

  • Long Term Monitoring with Focused Temp Studies

    Orange County, California – The Orange County Sanitation District (OCSD) was experiencing increasing I/I over the last two decades and high peaks at the treatment plants. Their network was 90% built out with a variable mix of residential, commercial, industrial, and some military. They were considering costly improvements to the ocean outfall and plant operations.Services Provided by ...

  • Principal Component Analyses of Groundwater Chemistry Data During Enhanced Bioremediation

    Abstract  A bioremediation project has been monitored for two years at a former sour gas plant site that had ethanolamine, glycol and their degradation products in the subsurface. The active enhanced bioremediation program consisted of dewatering and bioventing. An extensive groundwater monitoring program mapped the distribution of chemical species. Principal component analysis was used to ...


  • Tuning Your Boiler for EPA Boiler MACT Compliance

    The EPA’s Boiler MACT regulations are heating up. Boiler MACT is an EPA rule to limit hazardous air pollutants (HAP) from commercial and industrial boilers and process heaters. Originally proposed in 2011 as a mandate driven by the Clean Air Act,  the rules are Area Source Boiler MACT 40 CFR 63, subpart JJJJJJ for smaller boilers (stores, hotels, apartments, ...


    By Sierra Instruments, Inc.

  • Implementing an offline storage facility for Washington, D.C. suburbs in InfoWorks CS

    Wallingford Software’s InfoWorks CS solution has been used to enable the optimization of an offline storage facility to meet strict requirements for the Washington Suburban Sanitary Commission’s (WSSC) Rock Creek sewer basin sanitary system. The WSSC is the largest water and wastewater utility in the Washington, D.C. metropolitan area, providing services to 1.6 million residents of Montgomery and ...


    By Innovyze

  • Aerosol filtration in nanofiber filter media

    Nanofiber filter media are used in air filter applications where a compact filtration system with very high overall and fractional efficiency and low initial pressure drop  is required.  Moreover, because the aerodynamic drag force on nanofibers is very low compared to the drag on the large dust particles collected on the nanofiber media, this media is ideal for application to ...

  • Shannon Creek Dam Switches to Custom Anti-Cav Control Valve Solution

    Shannon Creek Dam and pump station is the core feature of the Regional Water Supply scheme, a joint venture of the Coffs Harbour City Council and the Clarence Valley Council. With an inundation area is 37 square Km, the reservoir provides 30,000 mega litres of supplementary water supply to The Clarence Valley and Coffs Harbour, located on the Mid North Coast of NSW, Australia. This award-winning ...


    By Singer Valve Inc.

  • Water Quality Benefits of Grass Swales in Managing Highway Runoff

    ABSTRACTGrass swales are a vegetated stormwater management technology that can remove surface runoff contamination through sedimentation, filtration by the grass blades, infiltration to the soil, and likely some biological processes. Two full-scale grass swales in the median of a four-lane highway were monitored during 18 storm events to characterize the overall performance of grass swales as a ...

  • InfoWorks WS aids Hunter Water’s model aspirations

    Specialist water and wastewater services provider Hunter Water Corporation purchased InfoWorks WS in 2009 to enable advanced real-time modeling of its water networks. Its experience of building complex models from basics has been extremely positive, with the process being made considerably easier than anticipated by the solution’s powerful data import, inferencing and operational tools. ...


    By Innovyze

  • Smarter grids, appliances, and consumers

    More and more utilities are beginning to realize that building large power plants just to handle peak daily and seasonal demand is a very costly way of managing an electricity system. Existing electricity grids are typically a patchwork of local grids that are simultaneously inefficient, wasteful, and dysfunctional in that they often are unable, for example, to move electricity surpluses to areas ...


    By Earth Policy Institute

  • InfoWorks WS - the best Calculation Engine

    Untitled Document ...


    By Innovyze

  • Pump/Recharge Rate Affects Saltwater Intrusion

    Untitled Document Many areas of the world use groundwater as their main source of fresh water supply. With the worlds population increasing ...


    By Solinst Canada Ltd.

  • Future Proofing and Pumping Technology

    Untitled Document Now that the dust of the AMP 4 round has settled, the UK 's water and sewerage companies are underway with their plans to maintain, upgrade and develop their asset base over ...

  • In-Vessel Composting of Residential Organics

    In 1994, the Regional Municipality of Peel began work on a system for residential organic residuals collection and composting. Although Peel had been promoting backyard composting, greater diversion rates were sought. The public was surveyed to determine what level of cooperation could be expected for source separation and setting out of food, soiled paper products, yard trimmings, etc. “We knew ...


    By BioCycle Magazine

  • Analysis of monitoring results of the separation and greywater treatment system at Chester Woods Park, Olmsted County, Minn.

    Introduction In 1993, Olmsted County installed an advanced individual sewage treatment system (ISTS) at the caretaker's residence at a County-owned park to demonstrate waste load reduction and downsizing of drainfield area. The subject system has two components--1) a composting/vermiculture blackwater system and a 2) aerobic graywater treatment system. The separation of the high strength ...


    By Equaris Corporation

  • Fuel Polishing & Transfer Systems

    Earlier this year, Algae-X International came out with a totally new line of Fuel Polishing & Transfer Systems designed and built there in Fort Myers, Florida facilities. By listening to its customers, boat builders and yacht owners alike, Algae-X found out what they wanted to have as an on board fuel optimization package. The design is modular, so the right system can be chosen for each ...


    By AXI International

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