Resource International, Ltd. assists in Upgrading Reedville’s 1976 Wastewater Treatment Plant to Meet Current Chesapeake Bay Standards
The Wastewater Treatment Facility was originally designed in1976 to operate at 200,000 GPD. In 2002 improvements were made and included new blowers dedicated to the digester, a dechlorination system, new chlorine contact tank baffles, and new sludge drying beds. The main process of the treatment plant is an extended aeration package plant constructed of a circular steel basin, located mostly below grade. Influent flows average about 88,000 gallons per day (GPD).
With regulatory changes that now include nitrogen and phosphorus in the permit, however, the system has experienced difficulty in meeting the requirements and has resulted in violations.
Resource evaluated alternatives and initially considered that the existing plant could be converted to a MBR process. However, there was a significant cost involved and the final solution was to convert the existing plant to a Sequenced Batch Reactor (SBR). For nutrient removal will be obtained by converting the existing clarifier chambers l into a post-equalization basin. New blowers will be located outside adjacent to the treatment vessel and the existing aeration chambers will have air diffusers with retrievable decanters, and mixers installed. Chemical addition and a drum filter will be constructed in a separate building for phosphorus removal. The upgraded plant is expected to be in operation by the end of 2014 at an approximate cost of $870,000.
For more information please contact: Mr. Charles Riedlinger, P.E. at (804) 550-9206.