WORKING PRINCIPLE
Air is dissolved under pressure in the liquid, which is then released to atmospheric pressure in the floatation cell. As the microscopic air bubbles come out of solution, they attach to the suspended solids in the liquid, causing them to float to the surface forming a thick sludge. A special skimmer removes the sludge with the help of patented 'KROFTA' SPIRAL SCOOP and pours it into the stationary centre section from where it is discharged by gravity for either recycling or disposal.
The unique compact and efficient design is made possible by use of the principle of “ZERO VELOCITY”.
The “KROFTA” SUPRACELL is smaller in surface area for its capacity, because, a very high specific clarification degree is attained (160 to 200 lpm/sq mt.). The water level in the tank is as low as 40 cms, which reduces the size and the weight of equipment, and, the retention time is just 3 minutes.