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Biosolids

The biosolids program is a process at the Wilson Creek Wastewater Treatment Plant which removes solids, known as sludge, from the wastewater. The sludge is sent through a belt press to squeeze out as much of the water as possible. The processed solids are loaded into a dump truck and hauled to a pasture land site to be spread. The sludge from the West Alexander Wastewater Treatment Plant is hauled to Wilson Creek Wastewater Treatment Plant to be combined with Wilson Creek sludge before being spread. Each land site is permitted by the South Carolina Department of Health and Environmental Control (SCDHEC) before any sludge is spread on the land.   The Biosolids Department personnel

are certified and highly trained and must ensure that the sludge meets stringent requirements set by the United States Environmental Protection Agency (EPA) and the SCDHEC before it leaves the plant. The sludge is analyzed for metals, nutrients, pathogens and other elements on a continuing basis. The biosolids are sent through a heat pasteurization process where all of the pathogens are killed. The Biosolids Department personnel operate the belt press and spread the sludge on permitted sites.