Product/Service

MECTAN® Induced Vortex Grit Chamber

Source: Veolia Water Technologies
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Grit is a source of problems in wastewater treatment facilities, which causes wear and tear on mechanical equipment, decreases the effective treatment volume in basins, causes pipe blockages and generally increases operating costs.

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Brochure: MECTAN® Grit Chamber
Video: Mectan Induced Vortex Grit Chamber

Grit is a source of problems in wastewater treatment facilities, which causes wear and tear on mechanical equipment, decreases the effective treatment volume in basins, causes pipe blockages and generally increases operating costs.

Historically, rectangular aerated grit removal systems were very large, resulting in high land, civil and equipment costs.

Since the early 80’s, John Meunier has offered the MECTAN® induced vortex grit removal system as the solution. The MECTAN® grit unit is a circular chamber that takes full advantage of the tangential inflow velocity along the peripheral wall of the chamber to assist in the grit removal process. The circular design will handle large flow rates in a fraction of the footprint of conventional aerated units. In addition, the MECTAN® grit removal system operates efficiently over a wide range of daily flow rates. With over 850 installations worldwide, the MECTAN® grit chamber is a proven, reliable component of John Meunier’s pretreatment products.

FEATURES AND BENEFITS OF THE MECTAN V® AND CLASSIC MECTAN®

 

  • Efficient operation on a wide range of flow rates.
  • Constant velocity assisted by paddles.
  • Low head loss.
  • Compact size results in low excavation and civil works costs.
  • Retrofittable into existing plants.
  • Simple mechanics
  • Reliable robust design. No moving parts subject to wear or blockage located under water.
  • Low maintenance cost.
  • Sloped transition and rotating motion eliminates accumulation of grit in the separation chamber under all conditions.
  • Induce vortex paddle mixer design provides optimum grit removal conditions, while limiting organics accumulation in the grit well.
  • Full accessibility to grit collecting well.
  • John Meunier’s superior application engineering support and service.

 

Facing the new challenge for multiple small and medium size WWTP upgrades, John Meunier Inc. has developed a new induced vortex Grit Chamber Design with the help of CFD (Computational Fluid-Dynamics) modeling. The needs for enhanced performance at the headworks stage is critical because Advanced Treatment Technologies like Membranes, MBR’s, MBBR’s and Hybas are being introduced into WWTP’s. These technologies are all sensitive to the presence of gross solids and grit deposition. Grit Removal Performance is also cardinal to lagoon-type treatment rehabilitation.

Click Here To Download:
Brochure: MECTAN® Grit Chamber
Video: Mectan Induced Vortex Grit Chamber