JPH07172966A - Fermentation promoting method of organic sludge and fermentation promoting apparatus - Google Patents

Abstract

PURPOSE:To carry out spontaneous fermentation in a relatively short period by mixing an organic waste with a ligneous high-temperature incineration ash, keeping the self-heated temperature of the mixture within a specific range to effect the control of water content and the removal of odor, packing the mixture in an air-permeable bag and depositing the bags. CONSTITUTION:An organic waste 1 such as a public sewage sludge treated in a sludge disposal plant A is mixed with a ligneous high-temperature incineration ash 2 such as pulp cake discharged from a paper mill B at a volume ratio of about 50:50 while the temperature of the high-temperature incineration ash 2 is at least about 100 deg.C to effect the control of water content and considerable deodorization. The self-heating temperature of the obtained mixture 3 is maintained to 40-80 deg.C. The mixture 3 is immediately packed in an air-permeable deposition and transportation bag 4 having a capacity of 1m<3> and deposited optionally in a state covered with a tent 6. The mixture is spontaneously fermented after the deposition of 10-15 days to obtain a fully fermented compost.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a method and apparatus for promoting fermentation of organic sludge, which does not use a fermentation machine or a fermentation tank at all, and uses the same fermentation machine or fermentation tank as the fermentation tank. It is an object of the present invention to obtain an effect and to make surely fermented compost in a very short period of time and at an extremely low price.

[0002]

2. Description of the Related Art The applicant of the present application has previously provided a recycling greening method called a PMC (pie-emc) method (see Japanese Patent Publication No. 4-45613 and Japanese Patent Application Laid-Open No. 4-261914). The PMC method is used after mixing organic waste such as public sewage sludge and livestock manure with charcoal powder, or organic waste and incineration ash generated from various industries such as incineration ash of pulp slag produced during pulp production. Fermented to produce an organic "growth base material", using this growth base material, an adhesive material called "Piemuzai (registered trademark)", a plant fertilizer mainly made of konjak flying powder, It is a construction method that forms the growth base of plants in greening work. Then, as a means for producing the organic "growth base material", a kiln type (horizontal type) fermenter is used, and organic waste such as public sewage sludge or livestock manure and incinerated ash are discharged from one input port. The mixture is put into the fermentor, and high-temperature hot air is fed into the fermentor to store the mixture for about 2 days and the mixture heated to about 50 ° C to 60 ° C is discharged from the outlet at the other end. Then, the fermentation is completed by depositing on the depositing site for about 2-3 months.

[0003]

The above-mentioned PMC method substitutes for the black soil, mountain sand, etc. used as the vegetation base material in the conventional method, and also contains a large amount of fertilizer. Furthermore, it is useful as a modern construction method that prevents the destruction of nature by collecting sand and recycles waste. On the other hand, in the above PMC method, in order to promote fermentation of organic waste,
Poor adjustment of water content affects the period of completion of fermentation. In the above conventional method of the applicant, a fermentation machine is always used. After the fermentation process, 2-3 at the deposition site until it is fully ripe.
It needs to be deposited for a month. Therefore, expensive equipment investment to install the fermenter and fuel cost to send high-temperature hot air into the fermenter are required, and about two months at the earliest until a growth base material that can be used as compost is obtained. Since it takes a long time, it is often feared that a large amount of stock may not be available in time if you do not stock a considerable amount.

[0004]

Therefore, the present invention is provided to solve the problems of the conventional method and to achieve the object of the invention. That is, the first of the present invention is, in a method for promoting fermentation of an organic sludge, mixing woody high-temperature incineration ash with sludge and other organic wastes to heat the mixture at an autothermal temperature of about 40 ° C to 80 ° C. In addition to maintaining the above condition, immediately after adjusting the water content and deodorizing, the product is packed in a breathable bag and deposited for a relatively short period of time to perform natural fermentation.

The second aspect of the present invention is, in an apparatus for promoting fermentation of organic sludge, mixing high temperature incinerated ash of pulp slag with public sewage sludge and other organic waste while maintaining at least about 100 ° C. The self-heating temperature of the mixture is 40 ° C to
Immediately after maintaining at 80 ° C and adjusting the water content and deodorizing,
It is stored in a breathable stack-cum-transport bag.

A third aspect of the present invention is an apparatus for promoting fermentation of an organic sludge, wherein organic waste such as public sewage sludge is made of thin wood as high-temperature incineration ash or thin wood produced at the time of manufacturing construction materials, and at least 100 ° C. Mixing while maintaining the front and back, maintaining the self-heating temperature of the mixture at 40 ° C to 80 ° C, and storing in a bag for deposition and transportation immediately after water content adjustment and deodorization. Is.

[Function] The woody incineration ash immediately after being discharged from the incinerator,
It has a high temperature of about 300 ° C. And
Although the temperature of the incinerated ash that has been exposed to the outside air after being discharged is lowered, about 50% of sewage sludge and other organic wastes are maintained while maintaining a temperature of at least about 100 ° C for a short time. When mixed at a volume ratio of 50,
The water content of the sewage sludge and the like is adjusted and, at the same time, a considerable amount of deodorization is performed due to the properties of the incinerated ash. Then, when the mixture having been sufficiently mixed is immediately packed in a bag having air permeability and accumulated for 10 to 15 days, the outside air is appropriately permeated and supplied into the bag to promote fermentation. It helps to reach ripeness.

[0007]

Embodiments of the present invention will now be described with reference to the drawings.
FIG. 1 is a schematic side view showing a process for promoting fermentation of an organic sludge according to the present invention. In the figure, 1 is public sewage sludge treated in sludge treatment plant A or domestic human waste or livestock manure and various other organic wastes, 2 is woody high temperature incineration ash, and specifically, it is generated at pulp mill B during pulp production. High-temperature incineration ash of pulp slag is acceptable, but instead of this, high-temperature incineration ash produced by incinerating waste wood and the like generated during the production of thinning materials and construction materials may be used. And, in the case of the high temperature incineration ash of the pulp slag described above, it has been at least 100 ° C since the time has not elapsed since it was discharged from the paper mill
It is necessary to use front and rear high temperature incineration ash. 3 is a mixture in which the organic waste 1 and the high temperature incinerated ash 2 are mixed by a tire excavator C, a mixer, or the like, 4 is a breathable bag for packing and containing the mixture 3, and the volume thereof is the mixture. In order to allow the outside air to permeate the inside, one cubic rice is set per bag, and the diameter of its cross section is set to about 1 m.

[0008]

[Specific process example 1] The pulp incineration ash 2 immediately after being discharged from the incinerator in a paper manufacturing factory has high-temperature self-heat of about 300 ° C. Then, the temperature of the incinerated ash discharged and exposed to the outside air drops, but in a stage where a little time has passed, while maintaining at least around 100 ° C., public sewage sludge and other organic waste 1 And in an amount ratio of about 50:50. by this,
The high temperature incineration ash further lowers the temperature due to a kind of heat exchange action, but the mixed mixture 3 is at least 40 ° C to 80 ° C.
The degree of C is maintained, the water content in the mixture is adjusted, and deodorization is considerably performed by the property of the high-temperature woody incineration ash having the bad or offensive odor of public sewage sludge. Then, the mixture 3 that has been sufficiently mixed is immediately packed in a bag 4 having a volume of 1 cubic rice having air permeability, and accumulated in multiple stages through the sonoko 5 for about 10 to 15 days, which is necessary. Cover with tent 6 according to The outside air permeates into the bag to help promote fermentation. In this case, by previously open so as not to spill the opening 4 ₁ of the bag, the fermentation promoting is improved.

[0009]

[Specific process example 2] When organic woody high-temperature incineration ash is obtained from waste wood or the like generated during the production of thinning materials or construction materials, put them in a burning incinerator to burn a large amount of incineration ash. Is produced and the temperature is not lowered, it is carried out in the same manner as the high temperature incineration ash of the pulp slag of the above process example 1.

[0010]

EFFECTS OF THE INVENTION Since the present invention has the above constitution, the high temperature incinerated ash immediately after being discharged from the incinerator or at least 100 ° C. in a state in which a short time has not passed after the discharge.
Mixing with sewage sludge and other organic substances in an approximately equal amount ratio while maintaining the self-heating of the incineration ash that is maintained around the front and back, and discarding organic matter while maintaining at least about 40 ° C to 80 ° C. The water content of the product is adjusted and the organic waste is also deodorized due to the properties of the woody high temperature incineration ash. Then, when the mixture is sufficiently filled and immediately packed in a bag having air permeability and is deposited, the outside air is appropriately permeated and supplied into the bag to assist the promotion of natural fermentation. The fermentation is completed. Further, since the fermented product, which has undergone the natural fermentation, can be shipped together with the bag, labor saving can be achieved. Therefore, according to the present invention, to ferment public sewage sludge and other organic wastes, no fermenter or fermenter is used at all, and air-ration (supply of oxygen) work required during fermentation is also required. Natural fermentation is promoted without doing
Moreover, a complete fermented product can be obtained in a short period of time by depositing for 10 to 15 days simply by packing in a bag having air permeability of a volume of about 1 cubic rice, which is convenient for deposition storage and transportation.

[Brief description of drawings]

FIG. 1 is a schematic plan view showing a process for promoting fermentation of an organic sludge according to the present invention.

[Explanation of symbols]

 1 Organic waste 2 Woody high temperature incineration ash 3 Mixture 4 Air-permeable bag 5 Sunoko 6 Tent

Claims (3)

[Claims] 1. A sludge and other organic waste substances are mixed with woody high-temperature incineration ash, and the self-heating temperature of the mixture is 40 ° C.
Maintaining around -80 ° C, immediately after adjusting the water content and deodorizing, it is packed in a breathable bag and deposited for a relatively short period of time to carry out natural fermentation, which promotes fermentation of the organic sludge. Method. 2. The public sewage sludge is mixed with pulp slag incineration ash as high temperature incineration ash while maintaining at least about 100 ° C. to maintain the self-heating temperature of the mixture at 40 ° C. to 80 ° C. A fermentation promoting device for organic sludge stored in a bag for stacking and carrying immediately after adjusting water content and deodorizing. 3. A mixture of organic waste substances such as public sewage sludge, which is waste wood generated at the time of manufacturing thinning materials or construction materials as high temperature incineration ash, and is mixed while maintaining at least about 100 ° C. Fermentation promoting apparatus for organic sludge stored in a bag for stacking and transporting immediately after the self-heating temperature of 40 ° C to 80 ° C is maintained and water is adjusted and deodorized.