TechnologieS pour le traitement de l’eau

Suction clarifier

Suction-type circular clarifier for municipal or industrial wastewater.

Vue 3D du clarificateur circulaire suceur Biotrade pour la décantation des eaux usées urbaines et industrielles

Presentation

The BIOTRADE suction-type clarifier is designed for the clarification of municipal or industrial wastewater. The system features a peripheral-drive radial bridge pivoting around a central column, with a low-profile, semi-submerged beam serving as the sludge collection trough.

Manufactured in BIOTRADE’s workshops, this clarifier is adaptable to basins of any size or configuration.

Models

BIOTRADE markets suction-type clarifiers for clarification tanks of all diameters, with configurations tailored to specific customer needs: radial, radial +1/3, and diametral.

Technical Specifications

BIOTRADE scraper clarifiers consist of the following components:

  • Bridge: Aluminum, galvanized steel, painted steel, 304L/316L stainless steel, or duplex steel (customer’s choice). Its lightweight design reduces energy consumption while ensuring optimal robustness.
  • Geared motor: IE3 for energy efficiency.
  • Vulkollan wheel: Offers a longer service life than polyurethane.
  • Submerged stainless steel structure: Designed for long-term durability and efficient floor scraping.
  • “Ski-jump” hopper: Adapts to all types of civil engineering designs; engineered to minimize snagging and ensure equipment longevity.
  • Flow rate adjustment system: Located at the suction pipes.
  • Sludge collection trough: Stainless steel, equipped with sludge inlet control valves.
  • Electrical connection or control cabinet (depending on requirements).
  • Trough cleaning system: Static brushes.
  • Vacuum pump and siphon: For self-priming the sludge siphoning process.
  • Suction pipes: Centered between W-shaped blades.
  • Electrical collector: Number of rings determined by selected options.
  • Clifford or diffusion skirt: For uniform effluent distribution.
  • Surface scraper: To direct floating matter toward the hopper.
  • Central pivot: With 304L stainless steel base plate (316L on request) and slewing ring.
  • Weir and siphon blades: 304L stainless steel (316L on request) for optimal clarified water discharge.
  • Stone guard / anti-obstacle system: To protect the equipment in the event of a blockage.

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Advantages

  • Adaptability: custom design to suit all types of civil engineering structures.
  • Safety: integrated safety equipment, including buoys, boat hook and lifeline.
  • Simplified maintenance: design focused on easy operation and maintenance.

Options

  • Immersed side ladder: for safe access to the basin.
  • Access ladder and/or gate: facilitates access to the bridge.
  • Torque limiters: electronic or mechanical, Dynalarm type, to protect the gear motor.
  • Infrared lamp: for de-icing the running track.
  • Motorised brush: for efficient trough cleaning.
  • Sludge blanket sensor support: for accurate sludge monitoring.
  • Safety equipment: buoys, boat hook and lifeline for operator safety.
  • Rotation detector, anti-slip device: stops the bridge if the idle wheel does not rotate within the set time.
  • Stop function with parking position: stops the bridge at a precise position at the end of the cycle.
  • Floating matter spraying system: prevents the formation of compact foam.
  • Central deflector: ensures a calmer water inlet under the Clifford.
  • Pressurised water trough cleaning: for optimal maintenance.
  • Walkway width: 800 mm, 1,000 mm or 1,200 mm depending on requirements.
  • Stainless steel clear water discharge trough.
  • Industrial wastewater suction system.

What materials are available?

BIOTRADE offers a wide range of materials: aluminium, galvanised steel, painted steel, 304L or 316L stainless steel, duplex steel and marine-grade aluminium.

What are the manufacturing lead times?

The manufacturing lead time is 16 weeks from approval of the drawings by the client. Drawings are usually issued approximately 2 weeks after validation of the requirements.

What are the advantages of the Vulkollan wheel?

The Vulkollan wheel offers a longer service life than polyurethane. It provides greater robustness and improved durability.

What is the difference between the rotation detector and the parking position?

The rotation detector, also known as the anti-slip device, stops the bridge if the idle wheel does not rotate within the set time. The parking position allows the bridge to stop at a precise point at the end of the cycle.