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US 4,090,940 AGranted
Apparatus for producing methane gas by processing waste materials
AssigneeAlpha Systems, Inc.
InventorHarold Switzgable
Life of this patent
Estimating the term…
Abstract
Apparatus for producing methane and other products by processing a slurry of biodegradable waste materials including two tanks containing waste material which are connected to allow fluid flow communication between slurry in each tank, each tank being airtight with respect to the ambient, one of said tanks containing a cathode and the other tank containing an anode to aid in the growth of methane producing bacteria, the tanks provided with movable hoods for collecting gas.
Claims30
Apparatus for producing methane gas by processing waste materials comprising:
- a. at least one airtight primary tank containing partially liquid and partially solid waste material inoculated with anaerobic bacteria;
- b. a primary outlet for expelling waste material from said primary tank;
- c. a primary inlet for introducing additional waste material into said primary tank;
- d. a cathode located in said primary tank;
- e. means for withdrawing gas created within said primary tank;
- f. at least one airtight secondary tank containing partially liquid and partially solid waste material inoculated with anaerobic bacteria;
- g. a secondary outlet for expelling waste material from said secondary tank;
- h. a secondary inlet for introducing additional waste material;
- i. an anode located in said secondary tank;
- j. means for withdrawing gas created within said secondary tank;
- k. a conduit providing fluid flow communication between waste material in said primary tank and waste material in said secondary tank;
- and
- i. means for removing non-processible and processed waste material from said primary tank.
10 more elements
Dependencies are inferred from the claim text.