1
Stephen W Dvorak: Method and apparatus for solids processing. GHD, Michael Best&Friedrich, September 17, 2002: US06451589 (30 worldwide citation)

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 ...


2
Stephen W Dvorak: Method and apparatus for solids processing. GHD, Michael Best & Friedrich, September 2, 2003: US06613562 (27 worldwide citation)

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 ...


3
Stephen W Dvorak: Method and apparatus for solids processing. GHD, Michael Best & Friedrich, July 18, 2006: US07078229 (21 worldwide citation)

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 ...


4
Stephen W Dvorak: Method and apparatus for solids processing. GHD, February 20, 2007: US07179642 (15 worldwide citation)

Apparatuses and methods for anaerobic digestion of high-solids waste are provided. The methods may include and the apparatuses may be used for moving the solid waste in a corkscrew-like fashion through a closed container. The method may further include moving the high-solids waste into contact with ...


5
Stephen W Dvorak: Method and apparatus for solids processing. DVO, Whyte Hirschboeck Dudek S C, June 19, 2012: US08202721 (6 worldwide citation)

A waste material processing system includes a closed container for holding waste material having a first passage in which the waste material flows in a first direction, the first passage having first and second ends, the first end including an inlet for waste material, a second passage in which the ...


6
Stephen W Dvorak: Method and apparatus for solids processing. GHD, Michael Best & Friedrich, May 6, 2004: US20040087011-A1

Apparatuses and methods for anaerobic digestion of high-solids waste are provided. The methods may include and the apparatuses may be used for moving the solid waste in a corkscrew-like fashion through a closed container. The method may further include moving the high-solids waste into contact with ...


7
Stephen W Dvorak: Method and apparatus for solids processing. Ghd, Michael Best & Friedrich, May 24, 2007: US20070114173-A1

A waste material processing system includes a closed container for holding waste material having a first passage in which the waste material flows in a first direction, the first passage having first and second ends, the first end including an inlet for waste material, a second passage in which the ...


8
Stephen W Dvorak: Method and apparatus for solids processing. CHD, Michael Best & Friedrich, December 26, 2002: US20020197665-A1

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 ...


9
Stephen W Dvorak: Method and apparatus for solids processing. GHD, Michael Best & Friedrich, December 19, 2002: US20020192810-A1

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 ...