Bar screens are an important first-line defense when it comes to keeping debris and large solids out of a wastewater treatment system. For low-flow systems that need ultra-fine screening, a drum screen can be installed after the bar screen or at other critical points in the treatment process. They are particularly beneficial for certain industrial applications or in small municipal wastewater treatment plants (WWTPs) that utilize sensitive membrane filtration, such as membrane bioreactors (MBRs).
Source: WaterOnline.com
