Anaerobic film biogas digester system
AssigneeMayyar Systems, Inc.
InventorMayyar F. Irani
Life of this patent
Estimating the term…
Abstract
An anaerobic digester for digesting a slurry of organic waste comprising: a tank having an outer side wall and a lower inner wall, a first radiant heating floor between the outer wall and a first side of the inner wall forming a first chamber and a second radiant heating floor between the outer wall and a second and opposite side of the inner wall forming a second chamber, an inlet pipe for delivering the slurry to a lower portion of the first chamber and a outlet pipe for removing digested slurry from a lower portion of the second chamber, the slurry maintained at a depth that is greater than a height of the inner wall; and a gas collection chamber sealed to the tank along the length of the upper surface of the outer wall.
Claims51
An anaerobic digester for digesting a slurry of organic waste comprising:
- a tank having a vertical outer side wall and a vertical lower inner wall, said outer wall and inner wall each having a top surface, a first radiant heating floor between said outer wall and a first side of said inner wall forming a first chamber and a second radiant heating floor between said outer wall and a second and opposite side of said inner wall forming a second chamber, said first radiant heating floor maintaining said slurry in said first chamber at a first temperature and said second radiant heating floor maintaining said slurry in said second chamber at a second temperature;
- an inlet pipe for delivering said slurry to a lower portion of said first chamber and a outlet pipe for removing digested slurry from a lower portion of said second chamber, said slurry maintained at a depth that is greater than a height of said inner wall;
- and
- a gas collection chamber sealed to said tank along the length of said upper surface of said outer wall.
A method for digesting a slurry of organic waste comprising:
- providing a tank having a vertical outer side wall and a vertical lower inner wall, said outer wall and inner wall each having a top surface, a first radiant heating floor between said outer wall and a first side of said inner wall forming a first chamber and a second radiant heating floor between said outer wall and a second and opposite side of said inner wall forming a second chamber, said first radiant heating floor maintaining said slurry in said first chamber at a first temperature and said second radiant heating floor maintaining said slurry in said second chamber at a second temperature;
- delivering said slurry to an inlet pipe extending into a lower portion of said first chamber;
- maintaining said slurry at a depth greater than a height of said inner wall;
- removing digested slurry through an outlet pipe extending into a lower portion of said second chamber;
- and
- collecting biogas in a gas collection chamber sealed to said tank along the length of said upper surface of said outer wall.
A system for digesting a slurry of organic waste comprising:
- (a) a preheat tank for preheating said slurry before introducing said slurry to a digester;
- (b) said digester comprising:
- a tank having a vertical outer side wall and a vertical lower inner wall, said outer wall and inner wall each having a top surface, a first radiant heating floor between said outer wall and a first side of said inner wall forming a first chamber and a second radiant heating floor between said outer wall and a second and opposite side of said inner wall forming a second chamber, said first radiant heating floor maintaining said slurry in said first chamber at a first temperature and said second radiant heating floor maintaining said slurry in said second chamber at a second temperature;
- an inlet pipe for delivering said slurry to a lower portion of said first chamber and a outlet pipe for removing digested slurry from a lower portion of said second chamber, said slurry maintained at a depth that is greater than a height of said inner wall;
- and
- a gas collection chamber for collecting gas, said gas collection chamber sealed to said tank along the length of said upper surface of said outer wall;
- (c) an engine coupled to a generator, said engine generating heat by burning said gas collected in said gas collection chamber and driving said generator in order to generate electricity;
- and
- (d) a heat exchanger for taking said heat generated by said engine, heating a fluid with said heat and supplying said heated fluid to said preheat tank and said first and second radiant floors.
Dependencies are inferred from the claim text.