Wastewater treatment produces several types of solids. Biosolids (also referred to as sludge) are separated out for further processing. Other solids are sent to a licensed landfill site for disposal.
Waste-activated sludge is biodegraded, dewatered and then stored until spring or fall, when it is scattered in a thin layer over approved agricultural fields and tilled underground within six hours of application to enrich the soil.
Although the process is complex, Waukesha’s Clean Water Plant is highly efficient and successful at protecting the quality of our water resources.