The biological process uses air to encourage bacterial growth that would consume many of these waste materials, such as phosphorus and nitrogen that are dissolved in the wastewater. The larger air release openings of a coarse bubble diffuser helps to facilitate a higher oxygen transfer rate and bacterial growth.
In this context, the biological process leverages air to stimulate bacterial growth that breaks down numerous waste substances, including phosphorus and nitrogen present in wastewater. The design of a coarse bubble diffuser allows for greater oxygen transfer and supports bacterial development.