The CoMag® system is ideal for ballasted separation and recovery, utilizing magnetite and chemicals to create a ballasted flocculation system.  Thus, enhancing settling rates and increasing the performance of wastewater and water treatment operations. The high-density, magnetite ballasted floc flows into a modified compact high-rate clarifier. The clarifier includes baffle plates to direct flow for optimal settling, and a sludge rake collects sludge in a sump.

In primary or tertiary wastewater intensification applications, the CoMag® system employs a sludge recycle function to increase the system performance and the clarity of its effluent. Approximately 80% of the clarifier underflow is recirculated back to the system’s reaction tank. In the recirculation loop, sludge is processed through an inline, highspeed shear mixer where the magnetite is separated 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 more than 99% of the magnetite and return it to the system. The sheared sludge, minus the magnetite, is sent for sludge dewatering.

ALL PARTS AND COMPONENTS MEET NSF CERTIFICATION. 

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• 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

• 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 plant offerings for municipal and industrial applications.