A method and apparatus for the anaerobic digestion of high-solids waste material. The apparatus includes a closed container having a relatively circular outer wall. The closed container has a first passage having an inlet in which the waste material flows in a first direction, a second passage in wh
A method and apparatus for the anaerobic digestion of high-solids waste material. The apparatus includes a closed container having a relatively circular outer wall. The closed container has a first passage having an inlet in which the waste material flows in a first direction, a second passage in which the waste material flows in a second direction, and a divider having an end. The divider separates the first passage from the second passage, such that the waste material flows around the end of the divider when flowing from the first passage to the second passage.
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1. A method for the anaerobic digestion of waste material comprising: providing a closed container having a relatively circular outer wall, the closed container including a first passage having an inlet in which the waste material flows in a first direction, a second passage in which the waste mater
1. A method for the anaerobic digestion of waste material comprising: providing a closed container having a relatively circular outer wall, the closed container including a first passage having an inlet in which the waste material flows in a first direction, a second passage in which the waste material flows in a second direction, and a first divider having an end, the first divider separating the first passage from the second passage, a third passage in which the waste material flows in a direction substantially similar to the first direction of the first passage, and a second divider having an end, the second divider separating the second passage from the third passage, the waste material flowing around the end of the first divider when flowing from the first passage to the second passage and around the end of the second divider when flowing from the second passage to the third passage. 2. The method of claim 1, wherein the first passage or the second passage includes at least a portion of the relatively circular outside wall. 3. The method of claim 1, further comprising using a heating device positioned in the first or the second passage to induce the waste material to move in a corkscrew-like fashion through at least one of the first passage and the second passage. 4. The method of claim 3, wherein the heating device is positioned adjacent the relatively circular outside wall and the heating device provides convective forces that cause heated waste material to rise near the relatively circular outside wall. 5. The method of claim 3, wherein the heating device includes heating pipes, and further comprising enhancing convection and facilitating the corkscrew-like flow path with heating pipes. 6. The method of claim 3, wherein the heating device is positioned adjacent the divider and the heating device provides convective forces that cause heated waste material to rise near the divider. 7. The method of claim 3, wherein the heating device includes a conduit having at least one gas outlet positioned to promote upward movement of the heated waste material utilizing recycled bio gas. 8. An anaerobic digester for digesting waste material comprising: a relatively circular closed container having a first passage in which the waste material flows in a first direction and a second passage in which the waste material flows in a second direction relatively opposite the first direction, the first passage being separated from the second passage by a first divider, and a third passage in which the waste material flows in a direction substantially similar to the first direction of the first passage, the second passage being separated from the third passage by a second divider. 9. The anaerobic digester of claim 8, further comprising a mixing chamber positioned prior to the first passage and configured to preheat the waste material prior to the waste material entering the first passage. 10. The anaerobic digester of claim 8, further comprising a clarifier chamber positioned after the third passage and configured to allow the waste material from the second passage to settle into liquid and solid components. 11. The anaerobic digester of claim 8, further comprising a heating device to heat the waste material, the heating device positioned in the first passage, the second passage, or a combination thereof, to induce the waste material to move in a corkscrew-like fashion through at least one of the first passage and the second passage. 12. The anaerobic digester of claim 11, wherein the heating device includes heating pipes configured to enhance convection and facilitate the corkscrew-like flow path. 13. The digester of claim 8, further comprising a partition positioned relative to the one or more walls such that a space is created there between, and wherein a heating device is positioned within the space for heating the waste material and enabling heated waste material to flow upwardly within the space. 14. The digester of claim 13, wherein the partition has a top edge over which heated waste material moves out of the space. 15. The digester of claim 13, wherein the partition has a bottom edge under which waste material moves into the space. 16. A closed anaerobic digester for digesting waste material comprising: a first section configured to receive the waste material from a source outside of the closed anaerobic digester and to preheat the waste material, the first section having an outer perimeter formed at least in part in the shape of a circle; and a second section configured to receive the preheated waste material from the first section and to anaerobically digest the preheated waste material, the second section having a first passage and at least one second passage separated from the first passage by one or more dividers, and a partition having a top edge and a bottom edge, the top edge being spaced a distance from a top of the closed second section, and the bottom edge being spaced a distance from a bottom of the closed second section, wherein the waste material changes direction upon flowing from the first passage to the at least one second passage, the second section having an outer perimeter formed at least in part in the shape of the same circle as the first section. 17. The anaerobic digester of claim 16, further comprising a third passage, the waste material moving in a first direction in the first passage, the waste material moving in a second direction relatively opposite the first direction in the second passage, the waste material moving in a third direction substantially the same as the first direction in the third passage. 18. The anaerobic digester of claim 16, further comprising a third section configured to received the waste material from the second section and to allow the waste material from the second section to settle into liquid and solid components, the third section having an outer perimeter formed at least in part in the shape of the same circle as the first and second sections. 19. The anaerobic digester of claim 16, further comprising an outer wall in the shape of a circle and defining the outer perimeter of the first and second sections. 20. The anaerobic digester of claim 16, further comprising a heating device positioned in the second section configured to induce convection of the waste material flowing through the first passage or the at least one second passage. 21. The anaerobic digester of claim 20, wherein the heating device is positioned adjacent the outer wall. 22. The anaerobic digester of claim 20, wherein the heating device is positioned adjacent one or more of the one or more dividers. 23. The anaerobic digester of claim 20, wherein the heating device includes heating pipes configured to enhance convection and facilitate the corkscrew-like flow path. 24. The anaerobic digester of claim 20 wherein the heating device is configured to heat the waste material with a gas.
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