Method and system for treating organic matter utilizing substance circulation system

• US 20040072331A1
• Filed: 12/04/2003
• Published: 04/15/2004
• Est. Priority Date: 02/15/2001
• Status: Abandoned Application

• Current Assignee: Tama-Tlo Ltd.
• Original Assignee: Tama-Tlo Ltd.
• Inventors: Nagao, Norio, Toda, Tatsuki
• Application Number:
  US10/467,166
• Publication Number:
  US 20040072331A1
• Time in Patent Office: Days
• US Class Current: 435/262
• CPC Class Codes: B09B 3/00 Destroying solid waste or transforming solid waste into something useful or harmless
• CPC Class Codes: C02F 11/02 Biological treatment
• CPC Class Codes: C02F 3/12 Activated sludge processes
• CPC Class Codes: C05F 17/50 Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
• CPC Class Codes: C05F 17/986 the other material being liquid
• CPC Class Codes: C05F 17/989 Flow sheets for biological or biochemical treatment
• CPC Class Codes: Y02P 20/145 the feedstock being materials of biological origin
• CPC Class Codes: Y02W 10/10 Biological treatment of water, waste water, or sewage
• CPC Class Codes: Y02W 30/40 Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

Abstract

A disposal method and disposal system for sharply reducing the residue and enhancing the sustainability and stability of disposal in disposal of organic waste are provided. The matter inside the solid phase decomposer is transported to a liquid phase decomposer I and is decomposed by land microorganisms at a solid phase decomposer III. The highly viscous products built up at that time are transported to the liquid phase decomposer I where they are dissolved in water and converted to sludge by aqueous microorganisms. The newly introduced organic waste is washed at the liquid phase decomposer I, transported together with the produced sludge to the solid phase decomposer III, and again decomposed by land microorganisms. For the transport of the matter inside the solid phase decomposer to the liquid phase decomposer I and the transport of the organic waste to the solid phase decomposer III, a solid/liquid circulator II having a twin screw structure is used. Further, at a demoisturizer IV, the moisture is separated from the gas produced at the solid phase decomposer III and the moisture is returned to the liquid phase decomposer. Further, the minimum necessary limit of gas is sent to a deodorizer V where it is deodorized and discharged as ordinary air.

Claims

1. A method of disposal of organic matter utilizing microorganisms,

said organic matter disposal method characterized by

making organic matter or its decomposed products in whole or in part successively pass through a solid phase decomposer for decomposing it by land microorganisms and a liquid phase decomposer for decomposing it by aqueous microorganisms.

2. An organic matter disposal method as set forth in claim 1, characterized by transferring part or all of the matter inside said the solid phase decomposer treated in said solid phase decomposer to said liquid phase decomposer, washing away a material dissolved in a liquid phase, then transferring the rest again to said solid phase decomposer.

3. An organic matter disposal method as set forth in claim 1, characterized by supplying part or all of said solid matter produced in said liquid phase decomposer to decomposition by said solid phase decomposer.

4. An organic matter disposal method as set forth in claim 1, characterized by washing away all or part of said organic matter and its decomposed products at said liquid phase decomposer, then transferring the rest to said solid phase decomposer to supply it for decomposition.

5. A system for disposal of organic matter utilizing microorganisms,

said organic matter disposal system comprising:

a solid phase decomposer for decomposing said organic matter and its decomposed products by land microorganisms,

a liquid phase decomposer for decomposing said organic matter and its decomposed products by aqueous microorganisms, and

a circulator for making said organic matter and its decomposed products in whole or in part circulate between said solid phase decomposer and said liquid phase decomposer.

6. An organic matter disposal system as set forth in claim 5, characterized in that said material circulator has a twin screw structure providing a function of transporting the matter inside said solid phase decomposer to said liquid phase decomposer and a function of transporting solid material of said liquid phase decomposer to said solid phase decomposer.

7. An organic matter disposal system as set forth in claim 5, further comprising a device having the function of supplying a gas heated to 40°

C. to 80°

C. to said solid phase decomposer.

8. An organic matter disposal system as set forth in claim 5, further comprising:

a demoisturizer for reclaiming moisture from gas produced in said solid phase decomposer and

a deodorizer for deodorizing said gas after demoisturization.

9. An organic matter disposal system as set forth in claim 8, characterized by removing the moisture by the demoisturization function of said demoisturizer and maintaining the matter inside said solid phase decomposer at a moisture content of 30% to 70%.