recirculation pump Articles

  • Chemical-Free Treatment of Recirculating Water Using Pulsed-Power

    Untitled Document Regulatory pressures and economic considerations require industry to become cleaner, more efficient, and more environmentally benign. Such operating principles advance not only ...


    By Dolphin WaterCare

  • Segflo Recirculating Biotower - Auberge du Portage, QC, Canada

    Customer: Auberge du Portage, QC, Canada Beautifully situated on the shores of the St. Lawrence River in the quaint village of Notre-Dame-du-Portage, the Auberge du Portage was built in 1903. This Victorian style seasonal home was converted into an Inn in 1930, and enjoys a year-to-year loyal clientele from Quebec City and throughout eastern Canada and the United States. Today, the hotel ...


    By Premier Tech Aqua

  • Whirl/Wet Is Ideal for Polishing Operations. Water Use Is Low. Unit Does Not Have External Pumps or Recirculation Systems, So Installation Out-of-Doors Is Possible.

    Gabilan Manufacturing, Inc. (Salinas, CA) produces all the mufflers used on Harley Davidson motorcycles. Quality is paramount: the polishing is preparation for chrome plating – arguably the most critical finishing process for high-end bikes. When new grinding and sanding equipment was installed, Gabilan considered several options for dust collection, finally choosing a cartridge system with spark ...


    By Tri-Mer Corporation

  • Understanding Pump Cavitation

    Cavitation is a major problem in the chemical industry because it affects a basic tool, the centrifugal pump. A sudden increase in the velocity of the pumped liquid reduces the inlet pressure, sometimes below the vapor pressure.The result is formation of gas and bubbles. Detecting the signs of cavitation, and correctly identifying and understanding the type of cavitation present, can help an ...

  • VFD for pumping systems

    Pumping systems account for nearly 20% of the world's electrical energy usage. In some process plants, the VFD for pumps and fans together account for between 50% and 80% of the total electricity used. Very rarely have I come across pumps operating with fully open discharge valves. The same is the case for fans with dampers. ...


    By Variable Frequency Drives

  • Chopper Pumps: Saeby fish processing plant, sludge tank mixing and pumping

    The sludge is coming from the dewatering unit, includes polymers, and has a dry matter content of 15 %. A Landia dry installed pump type MPTKR-I 18,5 kW pump was installed. The pump mixes the tank contents through a recirculation system and pumps the sludge to a tanker truck. The pump was built with a special feeder propeller to make sure it could handle the high dry matter content. The ...


    By Landia

  • Pump Performance Checklist

    Keeping your pump in shape will help reduce costs and boost profits! Cut fuel consumption, reduce replacement parts costs and minimize pumping time on every job! A PUMP THAT LETS YOU DOWN when you need it most causes obvious losses of time and money. Not so obvious, but every bit as costly, are losses you can incur with pumps that operate at less-than-peak efficiency. A pump ...


    By Gorman-Rupp Co.

  • Horsepower on the pump curve

    Now that the head capacity relationship along the X and Y axes of the pump curve has been established in Part 1 of this series, the pump curve can be used to determine the amount of horsepower required to meet the head and capacity requirements for the job. Horsepower is a unit of power equal to 550 foot pounds per second or 746 watts. Water horsepower is the minimum power ...

  • Pump Maintenance Know-How

    It’s no secret that a pump that runs at peak efficiency uses less fuel, experiences less downtime and costs less to operate. The time you spend maintaining your pump is actually an investment in its lifetime performance and value. In fact, there are many ways that a diligently maintained pump can reduce your costs, while increasing efficiency. For instance, by ensuring your pump investment ...


    By Gorman-Rupp Co.

  • Chopper Pumps: Chopping and pumping of paper rejects at paper mill

    Do we need a pulper to handle paper rejects? No not necessarily! In many cases the rejects can be repulped by means of a Landia chopper pump. At present we have 11 Landia Stainless Steel Chopper Pumps, model MPTKR-I 105 15.0 kW in operation at a Danish paper factory. All pumps are equipped with the unique Landia knife system. Rejects from the paper machine are efficiently comminuted by the pump’s ...


    By Landia

  • High pressure pumping systems - it`s all in the design

    High pressure pumping systems are used in a wide range of industrial processes. Careful selection of the components of the pumping system is essential for optimum safety and reliability. Failure to install a quality pump designed for the task could present a potential risk to human health or life or result in significant down-time and loss of production capacity with the associated costs to the ...


    By Cat Pumps

  • Chopper Pumps: Digester Mixing at Esbjerg WWTP, Denmark

    Experience with Landia Chop-per pump type MPTK-I obtained at the Esbjerg Eastern Treatment Plant Till now two centrifugal pumps of a different brand have been operating at the plant, in order to re-circulate the sludge in the two digesters. This has been well-functioning. After a period of much rainfall, part of the inlet wastewater was led past the grid system. The result was problems ...


    By Landia

  • DESMI’s Magnetically Powered Pumps Seal the Deal

    For companies pumping dangerous or expensive chemicals, leaks can endanger both personnel and the bottom line. Hermetically sealed, magnetically powered pumps are the state-of-the-play answer. The list of potentially dangerous or simply-too-expensive-to-lose substances being pumped from one part of an industrial process to another somewhere in the world is long. Take isocyanates, for example. ...


    By DESMI A/S

  • Chopper Pumps: Danish Crown, Sæby, Denmark - Pig Slaughterhouse

    Waste water from the production line, containing blood, small pieces of bones, fat and meat, hairs and intestines. Landia had to ensure proper mixing of the total volume and pumping to a RotoSieve rotating screen. In the tank, a submersible pump with recirculating nozzle, type DG-I 5,5 kW with one fixed knife and a submersible mixer type POP-I 4, 0 kW – 300 rpm. were installed. The system has ...


    By Landia

  • Verderflex Peristaltic Industrial Pumps excel in diverse applications

    Verderflex Industrial peristaltic pumps are extremely robust pumps, ideal for heavy duty operations on intermittent or continuous duty cycles. They are a simple to use, easy to control, versatile and reliable way to pump liquids. Verderflex Industrial pumps can be used in a broad range of applications: Anaerobic Digestion Sludge Transfer Verderflex pumps were specified due ...

  • Case study - Customers recommend leachate pumps from Geotech

    Application Leachate recirculation and condensate removal from gas lines Equipment The AP AutoPump range Location Sites across the UK Customer H&J Pipe ...


    By Geotech

  • Safe, Effective Pumping: In order to understand safe operation, it’s necessary to understand the application first.

    Whether it comes to pumps on a construction site or in an industrial process, the number one goal is to make sure it is operating and running with minimal need of attention. But as with any other equipment, it’s necessary to understand the basic priniciples of safe operation in order for this to occur. In order to understand safe operation, it’s necessary to understand the application ...


    By Griffin Dewatering

  • Bell & Gossett introduces new hydronic pump selection criteria to maximize system efficiency

    Energy and maintenance expenses account for approximately 75 percent of the life-cycle costs of a centrifugal pump. With a growing emphasis on reducing energy consumption driven by government regulation and businesses seeking operational and financial efficiencies, HVAC system designers are seeking system solutions that maximize efficiencies while reducing costs. To address this demand and the ...

  • Lagoon treatment for manure case study

    Are you getting a scale build up in your recirculation system from your manure holding ponds (lagoons)? Is it calcium carbonate or struvite (magnesium-ammonia-phosphate) crystals? In some CAFO sites, they will use anaerobic lagoons to reduce the amount of manure that they need to treat. In a zero oxygen environment the anaerobic bacteria will take the manure which is loaded with nutrients and ...


    By Struvite Removal

  • Water quality products - Scale Reduction Saving case study

    T he Greenfield Village mixed-use community, located at the southern end of the Salinas Valley in Greenfield, Calif., experienced significant problems caused by limescale buildup inside its 128 apartments’ water heaters and recirculation pumps. In the four years since the apartment complex was built, limescale buildup was so aggressive, that many of the water heaters and recirculation pumps ...


    By HydroFLOW USA

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