Investigation of Full-Scale Biological Batch Treatment of Intermittent Wastewater Flows

摘要

An existing full-scale extended aeration waste water treatment plant, located at Greenbrier State Park, was modified to provide batch or intermittent discharge operation. Following modification, this plant was maintained in this operational mode for over a month, while successfully meeting all applicable NPDES permit criteria. It was believed that this periodic strategy for waste water treatment systems offers a potential for improved operation, manpower needs, and resistance to transient influent loads. Some aeration problems were experienced, in that since batch handling resulted in variable aeration tank volume.