Organic digester apparatus and method
 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. 
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Jay
Anderson