Date of Defense
Sludge is a slurry that collects on the bottom of settling tanks of certain wastewater treatment systems. Sludges of varying solids content are drawn off from the settling tanks, digested, and dewatered. The inventory of sludge production in southcentral Michigan found that drying beds are the most common method of sludge dewatering in use at eight of the fourteen treatment plants; the systems include centrifuge, vacuum filtration, heat treatment and incineration systems.
Curran, Dennis L., "Wastewater Sludge Disposal in Southcentral Michigan: Regulation, Cropland Application and Inventory of Existing Disposal Practices" (1977). Honors Theses. 1391.
Honors Thesis-Campus Only