Organic digester apparatus and method
OwnerJay Andersoninventor
Life of this patent
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Abstract
An organic digester apparatus and a method are provided for the production of liquid fertilizer and methane gas from organic waste materials. The apparatus includes a plurality of organic digesters each having a gas sealing liquid well between the tank and the roof member thereof. In addition, each digester tank includes means for rotating the roof, washing the digester tank, and for observing the interior of the digester tank. The method is a batch of step digesting method of anaerobic digesting and includes depositing the organic waste into a collecting digester and subsequently depositing the organic material from the collecting digester into successive stage digesters that are each substantially emptied of organic material prior to said depositing steps.
Claims16
A method of anaerobically digesting organic material for the producing of fertilizer and methane gas, which comprises:
- (a) depositing a quantity of organic material into a collecting digester;
- (b) transferring the organic material from the collecting digester into a first stage digester that is substantially devoid of organic material, that is sealed against the entry of air, and that is filled with anaerobically generated methane gas;
- (c) transferring the organic material from the first stage digester to a final stage digester that is substantially devoid of organic material, that is sealed against the entry of air, and that is filled with anaerobically generated methane gas;
- and
- (d) removing liquid fertilizer from the final stage digester.
Dependencies are inferred from the claim text.