The GEM Unit: Advanced Flocculation and Flotation Equipment

CWT's innovative flocculation and floatation unit is a unique approach and replacement to traditional DAF treatment systems. The GEM unit can handle a much greater contaminant loading, produce much drier solids, and takes up to 1/10th of the footprint of a traditional DAF system.

How it Works - The GEM unit is a unique approach to flocculation and floatation systems. Instead of aerating a tank and using a particle collision method in an attempt to float particles like a traditional DAF, the GEM unit dissolves air into 100% of the waste stream using our patented LSGM (Hydro-cyclone) mixing heads. Using this technology, the GEM unit is able to effectively entrain air into the floc as it is being formed, creating much drier solids and exponentially increasing removal rates.

Chemical Efficiency - In addition to exceptional air entrainment, the LSGM heads can be fine tuned to adjust chemical mixing energy which enables more efficient chemistry usage, and prevents shearing of high grade polymers. Also, due to centrifugal forces, linearization of polymer is greatly increased, resulting in a higher percentage of the total polymer's capabilities being utilized.

Extraordinary Contaminant Removal Rates - Through more effective and redundant flotation, the GEM system removes BOD/COD, TSS and FOG from a variety of process streams to very low levels.

Variety of Models - CWT has developed 5 standard models, which can process waste water from 10 GPM to 1000 GPM. Adjustment of the primary mixing head also allows for precise adjustment for the flow rate of the GEM unit.

Cost Effective - Few moving parts, efficient use of chemistry and low power requirements keep the GEM's operating and maintenance costs to a minimum.

Small Footprint - At 1/10th the size of traditional gravity separation technologies, the GEM fits easily into facilities with limited real estate. Since the unit contains a smaller tank, it becomes less time consuming to adjust chemistry dosages based on changes with influent water, due to less retention time.

Drier Solids - During the mixing process, fine micro bubbles come into immediate contact with stream contaminants to produce more durable flocs with higher percent solids content than a traditional DAF system.

Customized Control - Upon leaving our factory, the GEM unit, and your project as a whole, is engineered to require as little operator intervention as possible.

No Carry Over - Flotation redundancy at the water's surface allows the clean water to "drain" from the floating particles to the bottom of the tank, which eliminates carry over.