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https://www.bernyeangroup.com/application/blowers-for-water-and-wastewater-treatment.html          
 
In biological wastewater treatment                plants, aeration chambers are used to remove organic matter from the water. Microorganisms are used to break down organic matter in the wastewater. Roots blowers provide the required oxygen to the microorganisms in the aeration chambers. Pressurized air is delivered through an aeration mat below the aeration chamber. The bubbling air not only provides oxygen to the process, but also keeps the microorganisms suspended in the water so that they do not settle. Depending on the biochemical oxygen demand, rotary vane blowers provide a constant air flow in the required amount. The correct selection and sizing of Roots blowers plays a vital role in the economic operation of wastewater treatment plants. The operating areas to which a rotary vane blower system will be subjected include the following parameters: Site conditions; Barometric pressure, discharge pressure, ambient temperature, relative humidity Type of aeration system Air mass flow at any time according to process conditions Other system and process variables such as upstream and downstream equipment, filters, valves, etc.     

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