wastewater check valve Articles

  • Treating wastewater as a resource

    A number of UK landfill operators are turning wastewater into a resource by utilising OTT monitoring and control systems to manage the irrigation of Willow crops (for renewable energy generation) with pre-treated effluent. Background Leachate from landfill sites represents a significant potential environmental liability, extending long into the future after a landfill site has ...


    By The OTT Hydromet Group

  • Wastewater Mining and Reuse: Creating Benign Future Scenarios

    Wastewater mining: In addition to being perhaps the most uninviting combination of words, it sounds like a most unlikely idea. But for almost 30 years, Aqueonics, now headquartered in Greenville, SC, has pioneered such systems, starting in the ’80s, with its first wastewater mining project. For that project, Aqueonics provided an onsite or decentralized treatment system for a developer in ...


    By Aqueonics, Inc.

  • WaStop Access protects residents in Lewiston NY, USA - Case Study

    Location: Lewiston New York, USA Client: City of Lewiston Problem: The effect of combined sewers (combined wastewater and storm water) and an area prone to flooding from the Niagara River, a section of Upper Mountain Rd in Lewiston New York have experienced repeated flooded basements. On a visit with Jeffery Ritter of the City of Lewiston, Bob ...


    By Wapro AB

  • Increased sample throughput for ICP-OES applied to U.S. EPA method 200.7

    The application of an SC-FAST sample introduction system to the analysis of natural and certified water samples is described. The SC-FAST system consists of an autosampler, sample loop, switching valve, high efficiency nebulizer and a glass cyclonic spray chamber to perform analysis by direct nebulization. The potential benefits of this introduction system are numerous and include: increased ...


    By PerkinElmer, Inc.

  • Case study - City of Sault Ste. Marie - Pressure Monitoring

    The condition assessment project consisted of a Sahara pipeline inspection to detect any leaks or pockets of trapped gas on the lines, as well as a period of pressure transient monitoring on each pipeline to check for any sudden peaks or drops in the pressures which could be damaging to the lines. Service: Sahara Transient Pressure Monitoring Client: City of Sault Ste. Marie Type of ...

  • Alaska - Anadarko Oil Camp case study

    The "North Slope" of Alaska is one of the harshest environments in the world to survive in, let alone work in, on a daily basis. Temperatures can reach -70 degrees F and wind chill factors can reach -100 degrees F. The "Slope" is home to thousands of oilfield workers, many of who live in portable camps located in extremely remote locations. In such an environment, equipment must be reliable, ...


    By Quanics Incorporated

  • Is your metering diaphragm pump having self-priming problems? - Case Study

    Dosing sodium hypochlorite, fluoride, and alum There is a simple and 100% interchangeable alternative to solve your problems. Same footprint as competing diaphragm pumps. All ancillaries reused Mounting shelf Platform All suction and discharge piping Appurtenances like gauges and valves ...

  • Whole Life Costs and pumping Technology – Peristaltics Increasingly Out on Top

    Untitled Document Whole life costs are playing an ever-more important role in pump selection by the water and wastewater industry. Interestingly, energy use is no longer the ...

  • Oil Analysis Helps Water Plant Cut Annual Maintenance - Case study

    The city of Chandler (Ariz.) Municipal Utilities Department (MUD) employs coagulation, sedimentation, active flow control and filtration to produce 60 million gal per day (mgd) of water at its surface water treatment plant. In addition, the system includes 27 wells and 21 booster stations controlled by SCADA. Water distribution is provided through more than 1,200 miles of water main, in excess of ...


    By Spectro Scientific

  • Case study - Cost-saving solutions using Sievers InnovOx TOC analyzers - optimizing organic loading

    Cost Concern  A company’s inability to recognize real-time organic loading changes in their wastewater treatment plant could result in excessive charges from the local water utility. Company Challenge A production facility located in the U.S. Midwest currently controls the organic loading in their wastewater’s chemical treatment ...


    By GE Analytical Instruments

  • Installation of Radar Level Instruments in Anaerobic Digesters

    ABSTRACTThere are numerous well-proven options available for level determination instrumentation. Instrumenting treatment processes present some unique challenges. Some of these include the ability for wastewater or residuals to clog and blind instruments. Level determination in an anaerobic digester presents these problems as well as others including foaming, surface agitation, and operation in ...

  • The Alternative to Pump and Treat

    Sometimes, an important technological advance begins with a small step – back! Such is the case with remediation of hydrocarbons from groundwater utilizing existing recovery and monitoring wells. For the past few years, state government has based decisions on the amount of clean up that they require by the risk posed to the environment. Risk Based Corrective Action, commonly called 'Rebecca' ...


    By Abanaki Corporation

  • How do you remove struvite?

    The photographs above demonstrates what can happen if you don’t control or remove struvite.  This is a 14” diameter line used to transfer sludge from an anaerobic digester to a sludge holding pond. Every year this agency would mechanically clean this transfer line.  However, every year plant operation notice that it took longer to transfer equivalent amounts of liquid from ...


    By Jenfitch, LLC

  • Dan Theobald-WaterExpertDan talks Water Conservation Live on WDAF-TV FOX4 KC

    Entire Interview: Interviewer: So thank you! Well, with current water restrictions across California, Earth Day is a perfect time to talk about conserving water. This morning, we got WaterExpert, Dan Theobald, here with saving H2O. Dan, Water Man! WaterExpert Dan: Thank you, thank you. ...

  • Wind-driven SVE system extracts VOCs from landfill

    An innovative soil vapor extraction (SVE) system has operated at the former Ferdula Landfill site in Frankfort, NY, for the past 10 years. The system relies on wind-driven vacuum processes rather than electrically powered air blowers to extract volatile organic compounds (VOCs) from the landfill. After a two-year trial beginning in 1998, the New York State Department of Environmental Conservation ...

  • State of the art treatment for Arsenic, color, and Hydrogen Sulfide - Case Study

    New Arsenic Regulations How meaningful to the average water customer are µg/l or parts per billion? Not very. How about the word “arsenic”? That will ring some bells as the mystery novel poison-of-choice. But with new, lower EPA arsenic standard of 10 ppb that went into effect Jan. 16, cities with ...


    By Filtronics, Incorporated

  • Softener Plant Supplier in Chennai, Chennai

    Water is and will be the primal focus as the world evolves every day. We might be surrounded by large water masses, but those still need to be effectively utilized. Water, today is available in different formats or to be more modern, in different Avatars. The key question is how much can be made effective for human consumption. The resolution lies in treatment of water fit enough for consumption ...


    By RRR ENVIRO SYSTEMS

  • Short Showers Replace Deep Baths: Drought Conditions Changing the Way Society Thinks About Water Infrastructure

    While proactive water conservation is a smart way for consumers to react to climate change, the crisis puts increased pressure on water utilities to better manage their resources and pipeline networks. Change is in the air. One only needs to check the daily news to understand why climate change, drought and water infrastructure have become frequent buzzwords heard around the water ...

  • Landis sewerage authority lift station monitoring case study

    Landis Sewerage Authority (LSA) serves the greater Vineland, New Jersey area. LSA was facing some typical problems monitoring their 23 lift stations. “Phone line problems with our autodialers were increasing almost as fast as Ma Bell's prices,” says Sam Hess, Collection System Plant Manager for the 8.2 MGD authority. “Additionally, every Wednesday when we would test our stand-by ...


    By Mission Communications, LLC

  • How to maintain a VFD

    Many of the VFDs used by the water and wastewater industry are approaching 20 years old. With careful maintenance throughout this period, the drives will still be giving good service. But there comes a point in any drive's life cycle where the decision has to be taken: do you replace, upgrade or retrofit? But which is best and when is each relevant? This article explains the choices and the ...


    By VFD Manufacturers

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