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U.S. Department of Energy
Office of Scientific and Technical Information

Apparatus for treating wastewater

Patent ·
OSTI ID:6064117
Apparatus for treating wastewater includes a settling tank, a sludge digester and a holding tank. Solids from the settling tank are delivered uniformly throughout the seed sludge in the digester and combustible gas is drawn off the top. Sludge from the digester is delivered to the holding tank where further combustible gas evolves and is removed for other uses. The sludge from the holding tank is recycled through the digester or discharged from the system for drying and/or subsequent use.
Assignee:
IFI; EDB-82-014064
Patent Number(s):
US 4272374
OSTI ID:
6064117
Country of Publication:
United States
Language:
English