WSSC Water, formerly known as Washington Suburban Sanitary Commission, was formed in 1918 to improve the waterways flowing through Washington, D.C. There were complaints that the water was being fouled by waste from Montgomery and Prince George’s Counties in Maryland.
Today the service area spans nearly 1,000 square miles and serves 1.9 million residents with over 5,600 miles of sewer pipe. WSSC Water consists of six water resource recovery facilities, treating over 65 million gallons per day of wastewater within the Montgomery and Prince George’s Counties.
WSSC, like many facilities, has trash such as rags, plastics, etc., that fill their digesters, decreasing their capacity and mechanically interfere and degrade their pumps, valves and other processes. In addition, their biosolids program requires a clean, environmentally friendly product. WSSC decided to address this problem by screening the sludge prior to the digesters.
WSSC heard of the HUBER STRAINPRESS in use at other facilities and, after a visit to the HUBER booth at WEFTEC, decided to pursue it as a solution for themselves.
The STRAINPRESS is a high-performance sludge screening system designed for low energy consumption and maximum solids capture. Its compact and fully enclosed design suits smaller buildings and provides odor-free operations.
Between 2021 and 2024, WSSC installed nine units at five of their six facilities. This standardization has simplified maintenance through the commonality of equipment as well as reduced spare parts inventory. They can also have multiple configurations of screen sizes, simplifying process optimization or specific testing with multiple screen size openings.
Download the case study to read more about the solution with the STRAINPRESS.
