Full Description

The Hampton Roads Sanitation District (HRSD) is a leader in pioneering the beneficial reuse of reclaimed wastewater in Virginia. HRSD signed an agreement in December 2000 to supply 0.5 MGD of reclaimed water to BP Amoco's Yorktown Refinery. This is the first known municipal/industrial reuse project in the Commonwealth. HRSD completed a comprehensive alternative analysis and preliminary engineering study to select an appropriate treatment system for providing high-quality, industrial product water from their existing municipal wastestream. Based on the study results, HRSD determined the least- cost solution would be to construct a biological treatment system, followed by filtration and disinfection. After evaluating a variety of processes, Sequential Batch Reactor (SBR) technology offered the most reliable treatment system for biochemical oxygen demand (BOD) removal, nitrification, and suspended solids removal. As part of the project, HRSD also completed preliminary pilot testing to evaluate innovative disk filtration technology for use with biological treatment to produce a reclaimed water suitable for beneficial reuse by local industries. Results indicated that disk filtration offered an exciting and lower cost alternative to conventional sand filtration and would require only thirty-five percent of the footprint area of a traveling bridge filter. Project Construction, as well as the associated reclaimed water storage and transmission system, will begin in December 2001 and should be completed by July 2002. When the project is completed, HRSD will provide reclaimed water to BP Amoco for half the cost of potable water and will use the project as a demonstration for other industries and water providers throughout Virginia. Use of reclaimed water will allow York County and Newport News Waterworks to conserve their limited potable water supply for higher quality uses. Ultimately, HRSD wants to reuse 100 percent of its treated effluent, achieving zero discharge. Includes tables, figures.

Product Details

Edition: Vol. - No. Published: 01/01/2002 Number of Pages: 10File Size: 1 file , 870 KB