Oxidation by Mechanical Aeration
The scoops attached to the aerator frames work to lift wastewater, resulting in maximum contact between the water and air, which allows oxygen to dissolve quickly into the water. When the scoop plunges below the water’s surface, a pocket of air is created in the scoop until it is fully submersed. This enhances the effectiveness of oxygen transfer.
The aerated water is then evacuated by the motion of the scoop and the rocking of the buoy, which combine to add oxygen to water below the surface. Aeration agitation and the control of flow direction thus occur simultaneously.
The machine is capable of treating water pollution with BOD of 250 milligrammes per litre at a rate of 600 cubic metres per day, and is effective in reducing BOD by more than 90 %. It is also cost-effective, at only 96 satang per cubic metre, or in terms of pollutants removed, 3.84 baht per kilogramme of BOD.