Baffle Systems Articles

  • SKIKDA WWTP Project - Case Study

    Customer: OTV France Sud (France) Project Name: SKIKDA WWTP Manufacturing year: 2008 Scope of supply 1 pcs. Ø 10 m Degazeur Tank Central Driven Surface Scrapers (with Weirs, Baffles and Scum Hoppers); Dry ...


    By ASTIM A.S.

  • TULA Project WWTP (Russia) - Case Study

    Customer: Hager & Elsässer (Germany) Project Name: Tula WWTP (Russia) Manufacturing year: 2008 Scope of supply 1 ...


    By ASTIM A.S.

  • New Mounting System Allows for Easier and Safer Aeration System Maintenance

    Featured in Environmental Science & Engineering Magazine, February 2018 Edition ...

  • Vacuum Truck Customization

    When it comes to vacuum trucks, we understand that businesses need them for many different purposes, whether they’re for car washes, septic systems, restaurants or different types of fuel, just to name a few. Here at Amthor International, we offer vacuum trucks that can be used for any of these applications. ...


    By Amthor International

  • The rehabilitation of 43 year old waste lagoons

    In 1967 the City of Concordia, MO built a segmented lagoon system to handle the small town’s waste requirements. The main industry in Concordia is a Tyson renderings plant, and the lagoon system was designed to also handle that plant’s final waste and water polishing requirements. The lagoon system was a relatively standard design, consisting of an 18.7 acre primary lagoon, a 5.6 acre ...


    By Reliant Water Technologies

  • Influence of density flow on treated water turbidity in a sedimentation basin with inclined plate settler

    The removal efficiency of particulate matter from a sedimentation basin with an inclined plate settler in drinking water treatment facilities is sometimes reduced by density flow caused by temperature increases in the raw water. In this study, the structure of the density flow and its prevention are investigated by means of three-dimensional computational fluid dynamics (CFD). The results of ...


    By IWA Publishing

  • Case study - City of Montreal upgrade of Atwater and Des Baillets water treatment plants

    Sidestream Venturi Injection—Basin Nozzle Manifold Contacting System. Montreal, Quebec, Canada The Problem: In 2001, a water quality audit revealed that two of the largest drinking water plants in the City of Montreal were out of compliance with Quebec’s latest water quality rules. In response to the audit, the city upgraded the 1,400 MLD Atwater and the ...

  • Water Tanks

    If you need to transport large amounts of water for your business, no matter what your business may be, you’re going to need a water tanker – and there’s no better place to get just what you need than here at Amthor International. Here at Amthor International, we provide a wide variety of options so that you can customize your water tanker to fit your specific needs. ...


    By Amthor International

  • Emsco/Bomco/Gardner Denver/NOV Mud Pump Fluid End Expendables

    Fluid End Expendables & Accessories Liner: hy-chrome liner, zirconia liner, ceramic liner, chrome-plated liner, hardned liner Piston: nitrile rubber piston, supreme piston, polyurethane piston, urethane bonded piston, green duo piston, blue lightning piston, white lightning piston Valve & Seat: ...

  • Modeling settling tanks for water treatment using computational fluid dynamics

    A computational fluid dynamics model is presented for the calculation of the flow, suspended solids, and tracer concentration fields in the settling tanks of the water treatment plant of Aharnes, an important component of the water supply system of the greater area of Athens, Greece. The model is applied to investigate the expected negative effect of the wind on the hydraulic and settling ...


    By IWA Publishing

  • Rocky reach spillway apron underwater concrete repair - Case Study

    We were contracted to preform an underwater concrete repair to the spillway baffle under spill gate 3, and preform an inspection of the spill way and dentate from spillway 2-8 and 9-12. The spillway was separated into two sections by a fish ladder between Bays 8 and 9. The perimeter of the eroded areas were delineated using an U/W track creating a key way, ensuring a minimum depth of repair, ...

  • Continuously mixing one batch at a time

    Ready-mix company improves mixing efficiency and ingredient accuracy by switching to a rotary batch mixer. When a concrete and ready-mix producer moved to a new plant, the mixing process was redesigned to include batching for greater control over the final product 's ingredients. Rich-Mix Products makes concrete and ready-mix products and packages them for sale in home ...

  • Glass blended rapidly with abrasion resistant rotary mixer

    While most reading this article may be unfamiliar with the Kopp Glass name, most are likely familiar with Kopp Glass products. From a humble beginning more than 80 years ago, as a manufacturer of red glass for railroad signals, Kopp now claims to be the world's leading producer of precision molded industrial quality technical glass.  The company is known worldwide among the ...

  • Rotary batch mixer yields high-quality blends for powder metallurgy

    GKN Sinter Metals Inc. is the world's largest manufacturer of parts made by powder metallurgy, a molding process that produces complex shapes with a range of properties. Powder metallurgy offers benefits in part fabrication over competing metal processes. It is faster than forging or casting and permits the use of more performance-enhancing alloys than die-casting. GKN Sinter Metals, Auburn ...

  • Rapid, gentle blending maximizes strength of powder metal parts

    Nestled in the heart of the powder metal capital of the world, Allegheny Blending Technologies (ABT) specializes in custom blending of ferrous and non-ferrous powder metals that are sold to molders of powder metal parts. These blends of iron powder and additives (copper, nickel, graphite, manganese sulfide and dry lubricants) play important roles in products and equipment. In the U.S. automotive ...

  • Bringing powdered metal blending in-house, rotary-style

    When processing powdered metal compounds for products such as gyro rotors, flywheels, counterbalances, boring bars and grinding quills, the proportion of powdered metal ingredients must be precise, and the distribution of those ingredients 100 percent uniform. Mi-Tech Metals, Indianapolis, IN, has been manufacturing products from high-density tungsten-based alloys for more than 26 years, during ...

  • NEFCO’s CFD study case study

    The study was originally conceived to evaluate the performance of the NEFCO Stamford Baffle design and several variations on that design to better understand the parameters that affected baffle performance. To that end, the plan was straightforward. The first step was the simulation of a 70-ft diameter clarifier. This clarifier would serve as the test bed to calculate the predicted effectiveness ...


    By NEFCO, Inc.

  • NEFCO™ Awarded new patents case study

    NEFCO™ has been granted two new patents for its Dual Surface Baffle System. The Dual Surface Baffle was developed from work done as a part of NEFCO’s on-going Computational Fluid Dynamics (CFD) Density Current Baffle Study. The first, US Patent No. 7,556,157, describes a Dual Surface Baffle with a curved lower baffle segment. The second, US Patent No. 7,726,494, describes a Dual ...


    By NEFCO, Inc.

  • The Monclova experience case study

    The Town of Monclova, Mexico found it necessary to increase the hydraulic capacity of its municipal wastewater treatment plant by 35% – from approximately 11.5 MGD to 15.5 MGD. The increase in flow was accomplished by upgrading the plant’s biological treatment process. Once the modifications were completed, the flow through the plant was gradually increased. As the increased flow ...


    By NEFCO, Inc.

  • Tracer experiment and RTD analysis of DAF separator with bar-type baffles

    This paper describes the development of a new dissolved air flotation (DAF) separator with a flow streamlining baffle to improve solid separation efficiency. The analysis of the RTD (residence time distribution) curves indicated that the parameter θ10 (dimensionless time at which 10% of tracer has discharged) increased from 0.38 for control reactor to 0.54 for the ...


    By IWA Publishing

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