The GEM System obsoletes DAF units in terms of floatation efficiency and operation. Where a DAF unit typically operates under the “collision method” theory for flotation, the GEM System is designed to entrain air into the floc and sludge structure, known as the “floc seeding method”.
In the GEM System, the floc seeding method is accomplished with the following steps:
- 100% of the waste stream is sent to the GEM System.
- The waste stream is exposed to high pressure (100-120 psi).
- Air is dissolved into the waste stream using LSGM technology.
- Flocculation chemicals are injected into the waste stream using LSGM technology.
- The floc is formed in the now air-enriched wastewater.
- Dissolved air is now entrapped inside the floc structure.
- Water pressure is lowered to ambient.
- Dissolved air in floc structure comes out of solution.
- Air inside floc expands, pushing out water.
- Flocs now float by themselves, as they are now “hollow”.
- Clean water and buoyant flocs are delivered to floatation tank.
The above process is a completely different process that has been researched and developed over several years by CWT. CWT has developed a floatation process that is completely different and unique from processes that are currently used by traditional technology.
Through these advancements in floatation, and a one-of-a-kind approach to the floatation process, the GEM System is able to achieve the following benefits: