In this article we will cover the design of the activated sludge process, which is one of the most common processes for biological wastewater treatment. Most of the design concepts illustrated here ...

A byproduct of this process is sewer sludge, also called biosolids, which has been considered safe to use as fertilizer if properly treated at the plant. PFAS chemicals get into sewer sludge through ...

A byproduct of this process is sewer sludge, also called biosolids, which has been considered safe to use as fertilizer if properly treated at the plant. PFAS chemicals get into sewer sludge ...