07078229 is referenced by 21 patents and cites 24 patents.

This invention provides a waste-processing system capable of processing high-solids wastes such as manure. This invention provides a compact U-shaped digester that allows for recycling of activated sludge to improve the efficiency of the process. Efficiency is also improved through a sludge heating design that creates a current in the digester and efficiently heats the sludge. A composter is provided to further process the sludge through aerobic digestion to create usable fertilizer. Finally, one embodiment provides a turbine that is fueled by biological gases from the digester to generate heat and electricity to be used by the system.

Title
Method and apparatus for solids processing
Application Number
10/217369
Publication Number
7078229 (B2)
Application Date
August 13, 2002
Publication Date
July 18, 2006
Inventor
Stephen W Dvorak
Chilton
WI, US
Agent
Michael Best & Friedrich
Assignee
GHD
WI, US
IPC
C12M 1/00
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