Screw press efficient in dewatering membrane bioreactor biosolids
Problem: The Decatur (Arkansas) Wastewater Treatment Plant’s dewatering technology was undersized and inefficient. With the added demands of a plant upgrade, the operations staff struggled to meet dewatering requirements.
Solution: The design-build team and owner selected an FSP 802 screw press from Schwing Bioset to replace the existing equipment. The new equipment was installed in the same building with primarily service connection modifications. The press started operating in November 2018.
Result: Biosolids have improved from 13% to 17% solids, reducing the amount of cake hauled. The solids capture rate has improved from less than 80% to
