JPH04114987A - Fermented fertilizer compound with 'shochu' lees and poultry manure, its production and prevention of pollution of 'shochu' lees and poultry manure - Google Patents

Abstract

PURPOSE:To obtain a fermented fertilizer having improved quality by properly compounding SHOCHU (low-class distilled spirits) lees and poultry manure as main raw materials and subjecting to exothermic fermentation in a fermentation tank while keeping the water-content and temperature at respective specific levels by repeating water-sprinkling and stirring procedures. CONSTITUTION:SHOCHU cake usually containing 90-100wt.% of water and poultry manure mixed with wood chips and having a water-content of 20-30wt.% are charged into a fermentation tank at a ratio of 1/3 to 3/1 and inoculated with aerobic fermentation bacteria. The mixture 4 of the SHOCHU lees and poultry manure is stirred with a rotary blade attached to the lower end of a stirrer 3 placed in a state extended between rails 2 laid on the edges 1 of the fermentation tank. The mixture is sprinkled with water while inspecting the fermentation temperature to keep the water-content to 50-70wt.% and the temperature to 55-75 deg.C. The stirring and the water-sprinkling procedures are repeated for a prescribed period until the completion of fermentation is ascertained by the lowering of the temperature. The mixture 4 is taken out of the tank, transferred to a separate place and allowed to cool by turning over twice or thrice to evaporate excess water and obtain the objective fermented fertilizer.

Description

[Detailed Description of the Invention] [Industrial Application Fields] Shochu lees and chicken manure, which are difficult to dispose of as industrial waste, are mixed and exothermically fermented to be used as organic fertilizer and soil conditioner.
It concerns a method to solve the pollution problem as well.

[Prior Art] Conventionally, there are no organic fertilizers or soil conditioners produced by mixing shochu lees and chicken manure and subjecting them to exothermic fermentation.

Shochu lees is produced at a relatively large factory, producing 50 to 60 shochu lees per day.
), and even small and medium-sized factories emit about 20 to 30 tons. In addition, in poultry farms, wood chips such as sawdust and plane shavings are used as bedding material, and this is mixed with chicken manure and is discharged at a rate of about +001 tons per year per poultry farm. On the other hand, attempts have been made to use the shochu lees to extract methane gas and as fertilizer, but there has been no actual use of the shochu lees, and most of it is dumped into the ocean. Furthermore, chicken manure is difficult to use as fertilizer because it is mixed with wood chips, and most of it is buried underground.

[Problems to be Solved by the Invention] As industrial wastes, shochu lees and chicken manure each have major problems as described above. By combining the two into organic fertilizer, the aim is to make a major contribution to the organic farming methods that modern agriculture is seeking, and to solve the problem of pollution, which is the biggest bottleneck, all at once.

[Means to solve the problem] Shochu lees at the time of discharge usually contains 90 to 100% water based on total dry weight, and chicken manure contains 20 to 30% water.

When these two are mixed in almost equal weight, the total moisture content is 60
%, which is the moisture state that facilitates fermentation. In this moist state, it is placed in a fermenter, and aerobic fermentation bacteria are added to supply oxygen and fermentation takes place.

Repeat stirring as necessary to supply oxygen and heat to 55-75℃.
to maintain the temperature. When the temperature starts to drop, it is the end of fermentation, remove it from the fermenter and move it to another place, and
It is made into a product by cutting back three times.

The above-mentioned equal weight ratio is the standard, and in order to make the fertilizer component suitable for the purpose of use of the fertilizer or to correspond to the amount of waste generated, the ratio is set in the range of 1:3 to 3:1.
The moisture content is adjusted to about 0%, and the fermentation process is performed in the same manner as above.

[Effect: 3. Wood chips contained in chicken manure do not easily decompose as they are;
Rather, it has the effect of inhibiting the fertilizer effect of chicken manure. However, if you mix it with shochu lees and put it in a fermenter, add aerobic fermentation bacteria and stir it, fermentation will start and the temperature will reach about 70°C in 8 to 15 hours. In order to maintain this fermentation temperature, watering and stirring are repeated as appropriate to supply oxygen, and the fermentation is completed in 1 to 1.5 months, turning shochu lees and raw chicken manure into fermented fertilizer. . In parallel with this action, the wood chips in the chicken manure undergo exothermic fermentation, and the lignin, tannin, phenol contained in the wood chips,
It decomposes substances such as cellulose and composts wood chips.

[Example 1]: Put 1 ton of chicken manure mixed with wood chips into a concrete tank with a depth of 1.5 m and a capacity of 2.5 rrr, and put 11 ml of shochu lees on top of it, and put it in an aerobic tank. After adding the fermenting bacteria, the mixture was stirred so that they were thoroughly mixed. At the end of this stirring, the moisture content was 61%. The top of the tank was uncovered, providing an environment that could protect it from rain and dew.

After 15 hours had passed since fermentation work started, the product temperature had reached 70°C. Thereafter, the temperature was raised to over 75°C, but as time passed, moisture vaporized due to fermentation heat, slowing down the fermentation rate and lowering the temperature.

When the moisture content was examined at this time, it was less than 50%.

For this reason, watering and stirring were repeated to maintain the moisture content at about 60%.

After one month, the temperature of the product gradually started to drop and the temperature reached 40
When the temperature reached ℃, it was taken out from the tank, moved to another place, and turned over 2 to 3 times to release excess moisture and allow it to cool. The fertilizer obtained in this way contains nitrogen,
It contains many active ingredients such as phosphoric acid and potassium.

(Example 2); In the example of Example 1, a large amount of aerobic fermenting bacteria was added, but in the second fermentation process, since the fermenting bacteria remained in the tank, a small amount of fermenting bacteria was added. The same fermentation effect was obtained even without addition in the third and subsequent fermentation operations. Furthermore, even when the moisture content during fermentation was 50% or less and reached 70% or more due to excessive watering, there was a tendency for the fermentation temperature to decrease. In addition, during this exothermic fermentation process, temperatures can reach 75°C or higher, and in such cases, the yield of nitrogen content decreases, and when the temperature drops below 55°C, the fermentation rate tends to slow down significantly. The need to maintain a temperature range was recognized.

(Example 3): Assuming that there is excess shochu lees, shochu lees 3
It was mixed with 10 parts of chicken manure. Prior to blending, the shochu lees was pressed to remove excess moisture, so that the moisture content when blended with chicken manure was approximately 60%. Thereafter, the fermentation process was carried out in the same manner as in Example 1. The course was almost the same as in Example 1. Although we did not perform a component analysis of the results,
In addition to being effective as a fertilizer, it is also expected to have great effects as a soil conditioner.

(Example 4): Figures 1 and 2 are conceptual diagrams showing a plan view and a side view of a fermenter, showing examples of plans for practical application of the present invention. The fermentation tank is a double system, with rails (2) laid on the edge () of the fermentation tank, and an agitator (3) placed so as to straddle the left and right rails.

The total length of the fermenter is 80m, and it can process 200 to 300 tons in a mixed state. In Figure 1, a stirrer is placed above the fermentation tank, and the shochu lees and chicken manure in the fermentation tank are stirred by the rotating blades attached to the stirrer. One round of stirring is completed when the fermentation tank goes around the tank. Watering and stirring are repeated while monitoring the fermentation temperature.

[Effects of the invention] ■Producing compost at a farm takes more than six months on a fishing boat, but with this invention, it can be produced in large quantities in a short period of one month to a month and a half, and moreover, it can be produced at 70°C. Because the temperature remains at this level for about a month, insects are killed and sterilized, and high-quality organic fertilizer is obtained.

■In addition to containing a large amount of nitrogen, phosphoric acid, and potassium, which are most necessary for agricultural crops, it is not only used as a simple fertilizer, but also as a soil conditioner.

■Have shochu lees and chicken manure caused pollution problems by being dumped into the ocean or buried in the ground?We will solve these pollution problems, reduce the costs required for ocean dumping, and recycle them as organic fertilizer. I was able to do it.

[Brief explanation of drawings]

Figures 1 and 2 are conceptual diagrams showing an example of a practical application plan for the organic fertilizer production method according to the present invention, with Figure 1 being a plan view with the middle part omitted, and Figure 2 being the same as Figure 1. It is an AA sectional view of. 1... Rim of fermentation tank, 2... Rail, 3... Stirrer, 4... Mixture of shochu lees and chicken manure.

Claims (1)

[Scope of Claims] 1. Shochu lees and chicken manure are the main raw materials, and they are mixed as appropriate with equal amounts as standard, and placed in a fermenter and watered and stirred to maintain a moisture content of 50 to 70%. A method for producing a fermented fertilizer containing shochu lees and chicken manure, characterized by repeated exothermic fermentation at 55 to 75°C. 2. Pollution caused by shochu lees and chicken manure, which is characterized by mixing shochu lees and chicken manure as appropriate according to their discharge amounts, subjecting them to exothermic fermentation according to the method of claim 1, and making them into fertilizers and soil conditioners. Prevention treatment method. 3. Fermented fertilizer and soil conditioner produced based on the method of claims 1 and 2.