City of Edmonds Wastewater Treatment Plant Phase 5

Rognlin's replaced and upgraded the current dewatering and solids handling equipment to improve solids consistency and process control. This project also replaced the air-over-hydraulic actuators in the effluent pumping building to minimize compressed air load in the building, and we installed control valves between the main low pressure air header and the auxiliary air header to control auxiliary air header pressure when auxiliary air blower is offline.