What is a buffer tank in a sewage treatment plant?

A buffer tank in a sewage treatment plant is a storage reservoir that temporarily holds wastewater before it undergoes treatment. Its primary purpose is to manage fluctuations in flow rates, ensuring a consistent supply of sewage for processing and optimizing the treatment process. By providing a buffer against peaks in inflow, it helps maintain operational efficiency and stability, reducing the risk of overloading downstream treatment units. Additionally, buffer tanks can aid in equalizing temperature and pollutant concentrations in the wastewater.