CoMag® System

See All Ballasted Clarification

Magnetite systems for enhanced primary or tertiary treatment.


  • Efficiently reduces total suspended solids (TSS), total phosphorus (TP), turbidity, color, pathogens, and metals far below conventional treatment, without the need for filters
  • High-rate, ballasted clarification allows for smaller reaction and solids separation tanks, minimal power consumption and moderate chemical use
  • The CoMag® System is easy to incorporate into existing tankage
Discontinued product
evoqa

Magnetite systems for enhanced primary or tertiary treatment.

  • Efficiently reduces total suspended solids (TSS), total phosphorus (TP), turbidity, color, pathogens, and metals far below conventional treatment, without the need for filters
  • High-rate, ballasted clarification allows for smaller reaction and solids separation tanks, minimal power consumption and moderate chemical use
  • The CoMag® System is easy to incorporate into existing tankage
Discontinued product

Description

Simple and reliable, the CoMag® System uses magnetite to ballast conventional chemical floc, enhancing settling rates and increasing the performance of wastewater and water treatment operations. To minimize the amount of solids escaping the unit, the solids separator is equipped with corrugated plate interceptor (CPI) packs. The solids separator is designed to maintain a sludge blanket in the hopper compartments under the CPI packs that act as a pre-filter.​

​In addition to achieving high rate clarification, the CoMag System employs a sludge recycle function to increase the system performance and the clarity of its effluent. Approximately 85% of the clarifier underflow is recirculated back to the system’s reaction tank. In the recirculation loop, sludge is processed through an inline, high-speed sheer mixer where the magnetite is liberated from the floc. The resulting two-part slurry is then passed under a magnetic recovery drum. The permanent and stationary magnets inside the drum help to capture 99+% of the magnetite and return it to the system. The sheered sludge, minus the magnetite, then flows to a filter press for sludge dewatering.​

Features

Features

  • Easy to incorporate into any type of coagulation/flocculation process
    Can use with any type of clarifier (circular, rectangular, squircle, inclined plate/tube settlers)
  • Only ballasting technology with an internal recycle from clarifier underflow to process tanks that reduces chemical consumption
  • Recycling promotes sludge densification and solids contact for better flocculation and sweeping effect in clarifiers to enhance capture of colloidal particles.
  • Magnetite is dense (2X more dense than silica sand), readily available (iron ore commodity), fully inert (NSF certified for DW applications)​, not abrasive (particle size is 40-50 microns) and magnetically retrievable (high recovery rates.)
  • Package plug and play offering for up to 300,000 gpd
  • Easy to pilot—Evoqua has two pilot units available and has conducted 35-40 pilots.
  • Rapid startup and quick process optimization for operation with frequent
  • shut-down and re-starts
  • Fully automated

Benefits

  • Continuously recovers and reuses up to 99+% of the injected magnetite, offering a sustainable process for lower OPEX
  • Stability under shock loads – does not choke or plug; rapid startup and quick process optimization
  • The high transmissivity of the CoMag System effluent reduces energy and operating costs of final purification
  • Fully automated, requires minimum operator attention, easy to operate, core equipment has been used by industry for decades
  • Package plug and play offering for up to 300,000 gpd

Specs

Aerobic Treatment System Type
  • Activated Sludge, Separation/Clarification

The CoMag® System For Enhanced Primary And Tertiary Treatment

Increase capacity and enhance clarifier performance

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