Wastewater treatment aerator OXIROTOR

ROTOR AREATOR type Horitzontal Aereator Brush OXIROTOR ®, is a horizontal aereator, in which the main axis rotates parallel to the water level. Is a specially designed equipment to transfer oxygen in the biologycal stage of the waste water treatment plants. The rotor, which is the active part, is constituted of a tabular axis over which the racks are fastened. When the spin is done, oxygen is transfered inside the liquid mass. The racks hit the water, creating numerous turbulences, so the required oxygen is transferred inside the mixed liquor. At the same time, a movement of circulation of the water is achieved. According to the oxygen demand and dimensions of the tanks, the number and length of rotors will be determined. For this type of rotors, whose diameter between rack edges is of 1m, the tanks must not exceed a water depht of 4.0 meters. The oxygenation capacity and the consumed power are related to the rotors submersive capacity. Water immersion can be controlled by variable spillway of automatic work, which in its turn is contrasted by a preset value.. With this system great electrical consumption is saved. The rotor generally is installed under a walkway formed by two lateral concrete beams that reach up to 10 cm above the water level. This way, it is protected against splashes, aerosol with movible elements of easy manipulation in order to make easier and safe the maintenance works and protection handrails must be installed.