JP2003226590A - Method of manufacturing livestock waste compost - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To manufacture livestock waste compost which makes it possible to obtain safe and tasty agricultural products beneficial to health and has such good quality as to make a contribution to balanced soil making and establishment of environmental circulation type agriculture. <P>SOLUTION: The method of manufacturing the livestock waste compost has a primary fermentation process step n2 of fermenting livestock waste raw materials 2 after moisture control n1, a vegetable garbage fermentation process step n4 of mixing the vegetable garbage subjected to crushing and drying treatment n3 with part of the livestock waste raw materials obtained by fermentation in the primary fermentation process step n2 and fermenting the mixture, a secondary fermentation process step n5 of fermenting the remaining livestock waste raw materials went through the primary fermentation process step n2 and a ternary fermentation process step n6 of mixing the vegetable garbage raw materials went through the vegetable garbage fermentation process step n4 with the livestock waste raw materials went through the secondary fermentation process step n5 and fermenting the mixture. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention produces a good quality animal dung manure capable of obtaining a safe, tasty and good crop, and contributing to the creation of well-balanced soil and the establishment of environmental recycling agriculture. The present invention relates to a method for producing manure compost.

[0002]

2. Description of the Related Art Animal dung is a raw material for compost (manure), and it is originally produced by maturing the dung of livestock together with the litter, but due to the lack of litter, sawdust and the like are now used as litter. When sawdust requires a long time for fermentation and ripening as compared with the case of straw, in order to make fermentation and ripening faster, for example, a special device as disclosed in Japanese Utility Model Publication No. 56-31538 is used. .

The compost produced by such an apparatus is usually used not only for making soil but also as return compost for a moisture conditioner or a litter.

[0006] However, when the returned compost mainly composed of livestock manure is used as a water content adjusting material and the like, there is a problem that the quality of the compost is deteriorated due to the accumulation of salts.

[0005]

Therefore, the main object of the present invention is to make it possible to keep the proportion of salt components low even when using animal dung. For that purpose, it is also an issue to establish environmental recycling agriculture by using food industry waste that has been simply incinerated until now.

[0006]

[Means for Solving the Problems] Means for solving the problems are as follows: a primary fermentation step of fermenting animal dung raw material after adjusting the water content, and a part of animal dung raw material obtained by fermentation in the primary fermentation step. And a vegetable waste fermentation step of mixing and fermenting dried vegetable waste, a second fermentation step of further fermenting the remaining animal dung raw material that has undergone the first fermentation step, and animal dung that has undergone the second fermentation step A method for producing livestock manure compost, comprising a third fermentation step of mixing the raw material with the raw material of vegetable waste that has been subjected to the above-mentioned vegetable waste fermentation step to ferment, and an aging step of aging the livestock manure compost intermediate that has undergone the third fermentation step Is characterized in that.

That is, the animal dung collected together with the litter, for example, cow dung, is mixed with an appropriate water content adjusting material such as rice husk and rice waste to adjust the water content and fermented with bacteria. When the predetermined water content is reached, the first fermentation process is started using an appropriate fermentation device. Then, a part of the livestock manure raw material that has passed through the first fermentation process is used for fermentation of vegetable waste, and the other is further fermented in the second fermentation process.

[0008] Vegetable scraps are unsold goods, cooking scraps, etc. The vegetable scraps are crushed and dried to remove water.
After the water content is adjusted to a predetermined value, the process proceeds to a vegetable waste fermentation process in which the animal dung raw material that has undergone the first fermentation process is mixed and fermented and decomposed.

Then, the raw material for vegetable waste that has undergone the fermentation process for vegetable waste is mixed with the raw material for animal dung that has undergone the second fermentation process,
Shift to the third fermentation process. After this step, animal stool compost is completed by further aging if necessary.

The animal manure compost thus produced has a lower salt concentration than the animal manure compost conventionally produced without vegetable waste. This is because vegetable waste contains a large amount of potassium, which is useful for adjusting the osmotic pressure of cells and the like, and it is considered that this excretes salt in the raw material of livestock manure.

In addition, in the vegetable waste fermentation process, it is preferable to mix an auxiliary material for promoting fermentation. That is, those with a high carbon rate are mixed to increase calories. As the auxiliary material, for example, okara, which is produced in a large amount after making tofu, may be used. This is because okara decomposes quickly and is suitable for composting, and it is also one of the food industry wastes that is difficult to dispose.

Further, at least in the first fermentation step and the third fermentation step, it is preferable to use an apparatus for carrying out the fermentation treatment while transferring a predetermined amount backward. That is, in this device, as the fermentation progresses, the fermentation progressed is transferred to the rear, so that a predetermined amount of fermented compost is produced every day. On the other hand, vegetable waste as food industry waste is also produced every day, and this combination enables a smooth flow of composting. Another means is a livestock manure compost produced by the above-mentioned livestock manure compost production method.

[0013] Still another means is a vegetable waste utilization circulation system in which vegetable waste produced from a vegetable distribution site is used in the method for producing livestock manure compost and the produced livestock manure compost is distributed to producers.

That is, in this vegetable waste utilization circulation system, vegetable waste produced daily at a vegetable distribution site such as a market, a greengrocer, a supermarket, a lunch center, etc. is composted by the above-mentioned animal dung compost manufacturing method, and the animal dung compost is converted into Since the vegetables distributed to the vegetable distribution site are distributed to the production farmers so that they can grow them, the complete recycling of the vegetable waste can be achieved.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view showing a manufacturing process of a method for producing livestock manure compost according to the present invention.
Manufactured using animal dung raw material 2 and vegetable waste 3.

The animal excrement raw material 2 is collected together with the litter, and a moisture adjusting material such as rice husk waste and rice waste is appropriately mixed to obtain 50 to 6
The cut-back deposition process is performed so as to obtain a predetermined water content of about 0% (water adjustment process n1). Since the type and proportion of livestock differ depending on the region, the mixing ratio of each material is set according to the region so that the water content can be adjusted to a predetermined water content.

FIG. 2 is a block diagram of a livestock manure accumulation system and a vegetable waste utilization circulation system. The water content adjusting process n1 is carried in by carrying the livestock manure raw material 2 discharged from the livestock house A into the first raw material warehouse 5.

Subsequently, the animal feces raw material 2 whose water content has been adjusted and fermentation has also started is transferred to the fermenter 6 for the first fermentation treatment n.
2 (first fermentation step).

As the fermenter 6, it is preferable to use a so-called scoop type plant having a turning agitator 6a that runs while turning the raw material inside a linear fermentation tank having a forced air blower at the bottom. In this fermentation device 6, since the raw material placed in the front position of the long fermentation tank moves backward by a predetermined distance while being turned over as the fermentation progresses, the raw materials can be sequentially added, and the fermented material is sequentially discharged from the rear. To be done.

While the animal dung is fermented in this way, unsold vegetables and vegetable scraps 3 as cooking scraps from vegetable distribution sites B such as supermarkets, shops, and lunch centers, as shown in FIG. It is carried into the raw material warehouse 7 where it is crushed and drained and dried (crushing and drying n3)
To be done. The crushing treatment may be performed with an appropriate crusher, and the drying treatment may be performed with heat using a burner after removing water.
The water content is set to about 50 to 60% as in the case of the animal dung raw material 2.

The thus-pretreated vegetable waste is subjected to a fermentation treatment n4 to ferment and decompose (vegetable waste fermentation step).
In this vegetable waste fermentation process n4 step, a part of the animal dung raw material 2 that has been subjected to the first fermentation process n2 is used.

That is, a part of the animal dung raw material that has been subjected to the first fermentation treatment n2 is pretreated to produce a second raw material containing vegetable waste.
The material is transferred to the raw material warehouse 7, mixed and cut back and deposited to reach a predetermined fermentation decomposition rate. The mixing ratio of the vegetable waste material 3 and the livestock manure material 2 may be appropriately determined, but it is 1: 1 to 1:
If it is set to about 3, more preferably 1: 2, fermentation can be performed more efficiently.

At this time, an auxiliary material 8 for increasing calories is added. The auxiliary material 8 preferably has a high carbon content, and is preferably okara. This is because okara decomposes quickly. The mixing ratio may be 10% or less. In addition to okara, chicken dung, urea and rice bran can also be used.

While the vegetable waste is fermented in this manner, the rest of the livestock manure raw material subjected to the first fermentation treatment n2 is transferred to the temporary storage 9 and a machine such as a wheel loader or an appropriate device is used. The pieces are cut back and accumulated, and the second fermentation process n5 is performed to advance the fermentation (second fermentation step).

The fermented vegetable waste material which has been subjected to the above-mentioned vegetable waste fermentation treatment n3 is mixed with the animal dung raw material thus fermented, and the following third fermentation treatment n6 (third fermentation treatment) is performed.
Next fermentation step).

The mixing ratio of the vegetable waste material and the animal dung raw material is
If it is set to about 1: 1 to 1: 2, more preferably about 2: 3, uniform mixing is easy.

The third fermentation process n6 may be carried out by the fermentation apparatus 6 having the same structure as the first fermentation process n2, and the fermentation is carried out until a predetermined fermentation decomposition rate is reached.

After the completion of the third fermentation process n6, the fermented product is transferred to the secondary storage 10 and appropriately cut and accumulated by a wheel loader or the like to be aged (aging process n7).
When fully ripe, livestock manure compost 1 is completed.

After that, the product is stored in a product warehouse, appropriately packed into bags, and distributed to the producing farm C so that it can be used for agriculture. It can also be used as an auxiliary material such as a moisture adjusting material or a litter as the returned compost.

When the component analysis was performed on the animal manure compost 1 produced in this way, the results shown in FIG. 3 were obtained. The animal dung raw material 2 of the animal dung compost 1 of the present invention is
As with conventional animal manure compost, cow dung is used.

As is clear from these results, the numerical value of chlorine showing the salt concentration is about 40% lower than that of the livestock manure compost produced by the conventional production method. Moreover, nitrogen,
Good quality compost was obtained with sufficient amounts of phosphoric acid and potassium and also containing useful trace elements such as manganese.

A germination experiment was carried out using the animal manure compost. The test was conducted in a soil-only survey zone, a survey zone in which soil 1 was mixed with 1 of the animal dung compost of the present invention, and a survey zone in which soil 1 was mixed with 1 of the conventional animal dung compost. 25 seeds of Japanese mustard spinach (500 cc) were sown, and two data were collected for each survey area, and the average value was calculated. The results were as follows.

That is, the average number of germination was 2 in the soil-only survey area.
On the other hand, the average number of germination in the survey area using the livestock manure compost of the present invention is 22.5, the average number of germination in the survey area using the conventional livestock manure compost is 22, and the germination rate is 92%, respectively. 90
% And 88%. From this, it can be seen that there is no obstacle.

As described above, a good quality animal manure compost having the necessary components and a low salt content can be obtained. Therefore, good crops and good soil can be made. Moreover, since the salt concentration is low, there is no fear of salt accumulation even when used as a returned compost, and it can contribute to the production of high-quality compost.

Moreover, since the wastes of vegetables and okara which are simply incinerated and not effectively utilized are used for the production of the animal manure compost, it is possible to eliminate waste. In addition to eliminating waste, waste generated in the distribution of vegetables, including sales and consumption, that is, vegetable waste is used to make good quality compost, and using that compost to make good quality agricultural products,
It is possible to establish a fully-circulating agricultural society in which soil is cultivated and the resulting crops are consumed, while the generated vegetable waste is also used for composting.

The above is one embodiment of the present invention.
The present invention is not limited to the above configuration.

For example, not only cow dung but also pig dung may be used as animal dung, and not only vegetable waste but also fish and garbage may be mixed. It is possible to obtain a livestock manure composting system according to the region.

As the vegetable waste 3, it is also possible to use the one produced from a general household, which can greatly improve the recycling rate.

[0039]

According to the method for producing livestock manure compost according to the present invention, since the produced livestock manure compost has a low salt concentration, it is necessary to pay attention to the accumulation of salts even when the livestock manure compost is used as a moisture adjusting material as the returned compost. Absent. In addition, when it is used as soil for composting, the amount of salt can be suppressed, and other components tend to act in a well-balanced manner, so that a compost of high grade that makes the soil healthy can be obtained.

In addition, in the production of such useful livestock manure compost, a large amount of vegetable waste that is produced as garbage every day is used at each stage of distribution, which can greatly contribute to the establishment of environmental recycling agriculture. Good compost produced using this vegetable waste and manure of livestock is distributed to farmers to make good soil and produce crops. Then, a complete recycling type system can be completed in which the food industry waste (vegetable waste) generated from the crop is used again for the production of livestock manure compost.

Furthermore, in the vegetable waste fermentation process, when an auxiliary material for promoting fermentation is mixed, fermentation decomposition can be promoted and composting can be achieved in a short period of time. In addition, the use of okara as an auxiliary material can accelerate the fermentation decomposition and further open a rational use of okara, which was simply used and was not used. It is possible to improve the effect of establishing recycling agriculture.

If at least the first fermentation step and the third fermentation step are carried out while the fermentation process is carried out backward by a predetermined amount, utilization of vegetable waste produced every day, in other words,
Since the disposal can be done without delay, the entire composting system can flow and it becomes easy to establish the vegetable waste recycling system, that is, the environmental recycling agriculture.

[Brief description of drawings]

FIG. 1 is an explanatory view showing steps of a method for producing animal manure compost.

FIG. 2 is a configuration diagram of a livestock manure compost production system.

FIG. 3 is a diagram showing components of animal manure compost.

[Explanation of symbols]

1 ... Animal manure compost 2 ... Raw material for livestock manure 3 ... Vegetable scraps 6 ... Fermentation equipment 8 ... Auxiliary raw material n1 ... Moisture adjustment processing n2 ... Primary fermentation treatment n3 ... Crushing / drying n4 ... Vegetable scraps fermentation treatment n5 ... Second fermentation treatment n6 ... Third fermentation treatment A ... barn B: Vegetable distribution site C ... Production farm

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) C05F 9:00) B09B 3/00 AF term (reference) 4D004 AA02 AA03 AA04 AC05 BA04 CA04 CA19 CA42 CB28 DA02 DA09 4H061 AA01 AA02 CC36 CC42 CC55 EE61 GG12 GG13 GG19 GG41 GG49 HH50

Claims (6)

[Claims] 1. A first method of fermenting animal dung raw material after adjusting the water content thereof.
A second fermentation step, a vegetable waste fermentation step in which a crushed and dried vegetable waste is mixed and fermented with a part of the animal dung raw material obtained by fermentation in the first fermentation step, and the first fermentation step. A second fermentation step of further fermenting the remaining livestock manure materials, and a third fermentation step of fermenting the livestock manure materials that have undergone the second fermentation step by mixing the vegetable waste material that has undergone the vegetable waste fermentation process A method for producing livestock manure compost having. 2. The method for producing livestock manure compost according to claim 1, wherein an auxiliary material that promotes fermentation is mixed in the vegetable waste fermentation process. 3. The method for producing livestock manure compost according to claim 2, wherein the auxiliary raw material is okara. 4. The apparatus according to any one of claims 1 to 3, wherein at least the first fermentation step and the third fermentation step use an apparatus that carries out a fermentation process backward by a predetermined amount. A method for producing livestock manure compost as described. 5. A livestock manure compost produced by the livestock manure compost producing method according to any one of claims 1 to 4. 6. The vegetable waste produced from the vegetable distribution site is used in the method for producing livestock manure compost according to any one of claims 1 to 4, and the produced livestock manure compost is distributed to producers. A recycling system that uses vegetable waste.