JPH0773708B2 - Method for treating livestock manure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating excrement of livestock, in which aerobic bacteria are utilized to remarkably enhance aeration treatment capacity.

According to this type of manure processing method, livestock manure can be easily processed into an odorless and non-viscous liquid at an extremely low cost, and neither a gas odor nor an ammonia odor is generated during the processing. Furthermore, the treated liquid is odorless, non-viscous, easy to handle, and can also be used as an extremely high quality organic fertilizer.

[0003]

2. Description of the Related Art Conventionally, the treatment of manure excreted from livestock has been a major problem in the livestock industry, and in pig farming in particular, there is a problem of how to remove the strong malodor generated during the manure treatment. .

Conventionally, generally performed treatment is feces,
Urine is separated, feces are composted, and urine is poured into a septic tank.

[0005]

However, in the above-mentioned conventional treatment method, in addition to requiring machines, vehicles, materials and the like when composting feces, a great deal of labor is required. Furthermore, a septic tank used for urine treatment must be installed, and a large amount of capital investment is required, which imposes a heavy economic burden on managers and farmers.

Further, equipment such as a septic tank is severely corroded, and fails within a few years and loses its function.

In addition to such a problem, an effective means for removing a strong malodor generated during processing has not been found at present, and there is a problem of how to solve environmental pollution to the surroundings.

The present invention was devised in view of the above-mentioned conventional circumstances, and the purpose thereof is to easily treat the dung of livestock by so-called transpiration, and to make it easily and of high quality at an extremely low cost. Another object of the present invention is to provide a method for treating manure, which can be converted into organic fertilizer, does not generate a bad odor during treatment, and has no fear of environmental pollution to the surroundings.

[0009]

In order to achieve the above object, the present invention has the following constitution.

The present invention is mainly composed of wild mugwort and aerobic bacteria, and feeds a livestock containing a fermented and purified product obtained by fermenting wild mugwort by aerobic bacteria to livestock, and excrement excreted by the livestock is mixed with manure. In the state, it flows out to the fermenter 1 and is preliminarily fermented in the fermenter 1, and the feces and urine preliminarily fermented flow out through the liquid exchange pipe 2 to the aeration tank 3 communicating with the fermenter 1 and the liquid exchange pipe 2. And ferment by aeration in the aeration tank 3,
A large number of foamy liquids are formed, and non-decomposable substances are contained in the foams. A part of the foamy liquid that is fermented and decomposed by aeration flows back to the fermentation tank 1 through the liquid alternating current pipe 2. At the same time, most of the foamy liquid is discharged to the defoaming tank 6 outside the aeration tank 3 to defoam, and the non-decomposable substance contained in the foam is separated and processed into an odorless, non-viscous liquid. It is characterized by

The fermented and refined product added to the feed is, as described above, composed of wild grass mugwort and aerobic bacteria as main materials and fermented wild grass mugwort with aerobic bacteria.

[0012]

In the present invention, the main material is wormwood and aerobic bacteria, and the fermented product obtained by fermenting wormwood with aerobic bacteria is included in the feed, and such feed is given to livestock. Therefore, the feedability of livestock feed is improved.
Further, the aerobic bacteria group of the fermentation purified product further promotes the fermentation decomposition even when the excrement excreted from livestock is aerated in the aeration tank 3, for example.

When manure is aerated in the aeration tank 3, the organic matter is efficiently decomposed and evaporated, and the inorganic matter is contained, for example, in a foamed liquid due to aeration, and is discharged to the outside of the aeration tank 3. . The foamy liquid discharged to the outside of the aeration tank 3 is defoamed by a defoaming machine and then left for a certain period of time. Then, the non-decomposed inorganic substance precipitated on the bottom is separated and processed into an odorless and non-viscous liquid.

[0014]

【Example】

Preferred embodiments of the present invention will be described below with reference to the drawings. A first embodiment is shown in FIGS.

[0015] A livestock is fed with a feed containing a fermented and purified product in which wild grass mugwort and aerobic bacterial groups are used as main materials, and the wild grass mugwort is previously fermented with aerobic bacterial groups. Then, the excrement excreted from the livestock fed with such feed is flowed into the fermentor 1 in the mixed state of excrement without separating the excrement, and the fermenter 1
Pre-fermented inside.

In the fermentation tank 1, preliminary fermentation is carried out for about 10 days, and the internal temperature is kept at 30 ° C. or higher. here,
The fermentation tank 1 is connected to the adjacent aeration tank 3 by the liquid exchange tube 2, and when a certain amount or more of mixed manure is accumulated in the fermentation tank 1, the pre-fermented manure passes through the liquid AC tube 2. It flows into the aeration tank 3.

In the aeration tank 3, manure is aerated by the operation of the aeration pump 9, and a large amount of air is mixed in the manure. Then, this manure is fermented and decomposed into a fine bubble-like liquid. At that time, the organic matter is efficiently decomposed and evaporated, but the inorganic matter is not decomposed at all.
Accumulated in the tank and the pH in the tank exceeds 7-8 and exceeds 9,
It becomes a strong alkali, losing the activity of aerobic bacteria and inhibiting its decomposition. Therefore, this inorganic substance is removed to remove the pH in the tank.
Need to keep normal.

In this embodiment, however, many inorganic substances (non-decomposable substances) are contained in the bubbles of the foamy liquid formed by aeration by adhering them. The foamy liquid containing the inorganic substance is jetted out of the aeration tank 3 through the jet port 4 on the ceiling, and the pH inside the aeration tank 3 is maintained at about 7.

Aeration is performed for about 20 days in the aeration tank 3 and the internal temperature is maintained at 50 ° C. or higher. By the way, a part of the manure aerated in the aeration tank 3 is the liquid exchange tube 2
Since it can flow back into the fermenter 1 through it, this also brings about the result that pre-fermentation in the fermenter 1 can be carried out more efficiently.

Here, the foamy liquid ejected from the ejection port 4 is taken into the defoaming device 5 in the upper part of the aeration tank 3, defoamed by the defoaming machine 12, and then passed through the trough 8. It flows into the foam tank 6.

The liquid flowing into the defoaming tank 6 is further defoamed by the defoaming machine 12 above the defoaming tank 6 and left for a certain period of time. Here, the non-decomposable inorganic substance released from the foam liquid is deposited on the bottom of the defoaming tank 6. Then, the liquid separated from this flows into the settling tank 7 through the advection pipe 13.

The manure treated in this manner finally becomes a brownish brown liquid which is odorless and has no viscosity. Then, it is pumped out of the settling tank 7 by the submersible pump 11 and transferred to a predetermined place through the flow pipe 14.

As described above, according to this embodiment, the excrement of livestock can be easily treated at a very low cost, so that the facility cost can be greatly reduced and the material and labor can be drastically reduced.

Further, the treated excrement finally becomes an odorless and non-viscous liquid, so that it is easy to handle, and in addition, the liquid becomes a good quality organic fertilizer. Therefore, not only waste manure can be processed without waste, but also organic fertilizer having a high commercial value can be converted.

Further, the excreted manure is stored in the fermenter 1 in an amount of 30
Since it is retained for about 10 days at a temperature of -40 ° C and for about 20 days at a temperature of 50 ° C or higher in the aeration tank 3, pathogenic bacteria such as Salmonella and Oeschi can be sterilized and treated hygienically. Also, the treated odorless and non-viscous liquid can be used as a fertilizer as it is.

Furthermore, since no gas odor, ammonia odor, etc. are generated during the treatment of manure, there is no fear of environmental pollution to the surroundings.

Next, FIGS. 3 and 4 show a second embodiment. In this embodiment, the aeration tanks 3 are provided on both sides of the fermentation tank 1, respectively, and more feces and urine can be treated as compared with the first embodiment, which is suitable for treatment in a large-scale livestock house.

A third embodiment is shown in FIGS. 5 and 6. In this embodiment, an existing composting facility is used, and a concrete block is piled up in front by using two tanks of a composting field provided with multiple tanks, which is an all-ground type.

Next, FIGS. 7 to 9 show a fourth embodiment. Passage 1 inside a livestock house covered with a greenhouse
Breeding chambers 18 are provided in two rows across 7, and a pit 15 is provided at a lower portion of each breeding chamber 18, and an opening above the pit 15 is closed with a drainboard 16.

The manure excreted from the livestock fed with the feed containing the fermented and purified product is pit 15 at the lower part of the breeding chamber 18.
And is sent to the fermenter 1 through the return pipe 20.

The manure preliminarily fermented in the fermentation tank 1 is aerated in the aeration tank 3 as in the first embodiment and then defoamed in the defoaming tank 6 to be treated as an odorless, non-viscous, dark brown liquid. It is collected and stored in the settling tank 7.

The liquid in the settling tank 7 is pumped out by the submersible pump 11 and injected into the pit 15 from the injection port 22 of the stall entrance 21 through the flow pipe 14.

When the treatment liquid in the settling tank 7 is injected into the pit 15, microfermentation is carried out by reacting with the manure and urine inside, and the gas odor and ammonia odor trapped in the livestock house are deodorized. Further, the heat-retaining effect of the micro-fermentation improves the transpiration efficiency. In addition to this, when the treatment liquid is injected into the pit 15, aerobic bacteria are propagated in white on the side walls of the pit 15, the corners of the floor, etc., and the proliferation of various bacteria is suppressed. Very good.

Pit 15 in which the treatment liquid was sprayed and slightly fermented
The manure in the inside is sent to the fermenter 1 through the return pipe 20,
After that, it is aerated, defoamed, separated and processed into an odorless and viscous liquid.

As described above, according to the present embodiment, when the treatment liquid in the settling tank 7 is injected into the pit 15, it reacts with the manure inside and micro-fermentation is carried out, and it stays in the barn. The gas odor and ammonia odor are deodorized, and aerobic bacteria grow in the pits to suppress the growth of miscellaneous bacteria, so that the environment of the barn becomes extremely good.

For this reason, the health of livestock is promoted, the accident rate of diseases and the like is greatly reduced, and there is no fear of environmental pollution to the surroundings. Furthermore, since it is possible to significantly suppress the addition of chemicals to feed and the use of disinfectants, it is possible to supply consumers with high-quality meat with high safety.

[0037]

As described above, according to the present invention, since the manure of livestock can be completely evaporated, it can be easily processed at an extremely low cost. Therefore, the facility cost can be greatly reduced, and the materials and labor can be greatly increased. Labor saving can be achieved.

Further, the treated excrement finally becomes an odorless and non-viscous liquid, so that it is easy to handle, and in addition, the liquid becomes a good quality organic fertilizer. Therefore, not only waste manure can be processed without waste, but also organic fertilizer with high commercial value can be converted.

Further, the treated manure is fermented and decomposed in the aeration tank for a long period of time, but since it is sterilized by the heat of fermentation at that time, it can be treated hygienically, and the treated liquid can be directly used as a fertilizer. it can.

Furthermore, since no gas odor, ammonia odor, etc. are generated during the treatment of manure, there is no fear of environmental pollution of the surroundings.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment.

FIG. 2 is a sectional view showing a first embodiment.

FIG. 3 is a plan view showing a second embodiment.

FIG. 4 is a sectional view showing a second embodiment.

FIG. 5 is a plan view showing a third embodiment.

FIG. 6 is a sectional view showing a third embodiment.

FIG. 7 is a plan view showing a fourth embodiment.

FIG. 8 is a sectional view showing a fourth embodiment.

9 is a cross-sectional view of FIGS. 7 and 8. FIG.

[Explanation of symbols]

 1 Fermentation tank 2 Liquid exchange pipe 3 Aeration tank 4 Jet outlet 5 Defoaming device 6 Defoaming tank 7 Precipitation tank 8 Flow gutter 9 Aeration pump 10 Aeration pump inlet / outlet 11 Submersible pump 12 Defoamer 13 Advection pipe 14 Delivery pipe 15 Pit 16 Drainboard 17 Passage 18 Breeding room 19 Reservoir 20 Return pipe 21 Barn entrance 22 Liquid inlet

Claims (1)

[Claims] 1. Feeding livestock with feed containing a fermented and purified product obtained by fermenting wild mugwort and aerobic bacteria as a main material and fermenting wild mugwort with aerobic bacteria, and excrement excreted by the livestock in a mixed manure state. Outflow to the fermentor (1), pre-fermentation in the fermentor (1), and feces and urine preliminarily fermented to the aeration tank (3) communicating with the fermenter (1) and liquid exchange pipe (2) to the liquid It flows through the AC pipe (2), is aerated in the aeration tank (3) and fermented, and at the same time forms a large number of foam liquids containing non-decomposable substances in the foam. A part of the foamy liquid decomposed by fermentation is allowed to flow back to the fermentation tank (1) through the liquid exchange pipe (2), and most of the foamy liquid is defoaming tank outside the aeration tank (3). It is discharged to (6) and defoams, and the non-decomposable substance contained in the foam is separated and processed into an odorless and non-viscous liquid. , Wherein the manure processing method of livestock.