The aeration tank volume for commercial applications is supposed to be how many times greater than the average daily flow?

In commercial applications, the aeration tank volume is designed to be three times greater than the average daily flow. This is based on the need to provide sufficient time for the aeration process to effectively break down organic material and facilitate proper microbial action. The increased volume allows for better oxygen transfer and ensures that the microorganisms have adequate space and time to treat the wastewater thoroughly.

By having a tank volume that is three times the average daily flow, the system can efficiently manage peak flow variations and maintain optimal operating conditions, which is essential for effective treatment and ensuring compliance with environmental regulations. This ratio helps in balancing the treatment process, especially in commercial settings where wastewater characteristics can fluctuate significantly throughout the day.