What Is Aeration SOTE Curve
Standard Oxygen Transfer Efficiency (SOTE) is an important measurement for aeration systems, especially wastewater treatment systems. It quantifies how efficiently an aeration system transfers oxygen from air to water under standardized test conditions set by the American Society of Civil Engineers. Essentially, SOTE measures the amount of oxygen transferred by an aeration device into clear water, which is critical in determining the amount of air needed to provide the necessary oxygen for the treatment process. The size of the bubbles produced by an aeration system has a significant impact on the oxygen transfer efficiency; the smaller the bubbles, the more efficient they are because they have a larger surface area relative to their volume and rise more slowly in the water, thus increasing the oxygen transfer efficiency.