Ultrasonic Transit Time Flow Meters Optimize Wastewater Treatment

摘要

The Village of Lombard, Ill., experienced several failures due to meters that were in poor working condition at its wastewater lift station. "We had no idea of the actual flow we were pumping from the different lift stations, whether it was dry weather or wet weather flow. We knew our sanitary stations ran a lot more due to inflow and infiltration (l&l) and sump pump connections, and we needed to address this problem quickly so we could generate better flow data," said Luke Sharp, water treatment and wastewater pumping supervisor for the Village of Lombard. Flow monitoring is the first step in identifying l&l to determine where problems are occurring, so the village's water and wastewater treatment division decided an instrumentation upgrade was necessary to eliminate chronic Sanitary Sewer Overflows (SSOs) and basement backups during rainfall events. Additionally, the flow meters would reduce l&l within the entire collection system, prevent potential high-risk failures within the collection system, better analyze discharge flow information from each lift station, reduce wastewater treatment costs and provide analytics to evaluate capacity for future major development projects.