JP2000033228A - Deodorant liquid and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for producing a deodorant liquid which can be mass-produced inexpensively by using domestic animal's urine and humus and has a high deodorant effect and durability. SOLUTION: Humus F of equal weight to the biological oxygen demand(BOD) of a biotreatment tank 2 is charged into the tank 2 for storing domestic animal's urine U, and the mixture is agitated by air for several days. When sludge D is generated, and a urine odor is eliminated, the urine U is supplied to the tank 2 to control a BOD volume load to be 0. 5 kg/m3.day or below, and the urine U mixed with the humus F is transferred to a precipitation tank 3 to be subjected to solid-liquid separation into supernatant V and sludge D. The quality of the supernatant V is controlled to be NH4-N: 5 ppm or below, NO2-N 1 ppm of below, NO-N: 3 ppm or below, and the number of calibacillus groups: 100/mg.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorant liquid suitable for deodorizing odors generated in, for example, a garbage disposal plant, a garbage incineration plant, a human waste treatment plant, and the like, and a method for producing the same. Things.

[0002]

2. Description of the Related Art For example, in a livestock barn such as a cow barn or a pig barn, an odor tends to be generated in the process of digesting and decomposing nitrogen compounds and sulfur compounds contained in proteins and the like contained in human waste and feces. Conventionally, a method of spraying a chemical agent and chemically reacting with a malodorous component to neutralize and deodorize this kind of malodor is common. Most of the feces and urine (80% or more) released by the livestock in the livestock barn are untreated and flowed to rivers and seas, and there is a need for improvements in the treatment. The water quality (properties) of the urine of the pig is as follows: BOD: 5000 ppm, suspended solids (SS): 4500 ppm, total nitrogen: 7780 ppm, ammonia nitrogen: 1082 ppm, albumin nitrogen: 967 ppm for pigs raised on the mixed feed. From the values that can be processed undiluted by biological treatment (generally, BOD: 100 ppm, SS: 50
ppm, total nitrogen: around 70 ppm)
If the concentration of SS or SS is high, it rots with the passage of time, and a bad smell is generated.

In addition, for example, Japanese Patent Application Laid-Open No. 8-16419
As described in Japanese Patent Publication No. 2 (1999), several kinds of plants are used as raw materials and their leaves and stems are obtained through the steps of vacuum distillation or squeezing, vacuum distillation, purification, decolorization, and aging. A vegetable deodorant has been proposed in which superoxidized water diluted with water is added to the deodorant extract and mixed.

[0004]

However, the above-mentioned conventional method of deodorizing with a deodorant comprising a chemical agent has the following problems.

[0005] Since the generated malodorous component is chemically neutralized and deodorized, in other words, the source of the malodorous component is not cut off from the root, so there is no persistence.
Frequent application of chemicals is required.

[0006] Since it is a chemical agent, it may adversely affect living organisms such as livestock if used for a long time.

[0007] In the case of the plant deodorant described in the above publication, the production process is complicated and is not suitable for mass production.
Very short, about a month.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and provides a deodorant liquid which can be mass-produced at low cost using urine and humus of livestock, has a high deodorizing effect and has a long lasting effect. It is intended to provide a way.

[0009]

Means for Solving the Problems In order to achieve the above object, the deodorant liquid according to the present invention uses a urine of livestock such as cows, pigs and chickens as a nutrient source to agitate bacteria contained in humus by air stirring. while cultured, a liquid deodorant consisting of supernatant fluid is collected sludge separation to occur, the water quality of the liquid deodorant is NH ₄ -
N (ammonia nitrogen): 5 ppm or less, NO ₂ -N (nitrite nitrogen): 1 ppm or less, NO ₃ -N (nitrate nitrogen): 30 ppm or less, and the number of coliform bacteria should be 100 / mg or less. Features.

[0010] According to the above-mentioned deodorant solution of the present invention, the soil bacteria (humid anaerobic bacteria, aerobic bacteria, or facultative anaerobic bacteria) in the humus are mixed with the urine of the livestock and the humus while stirring and air stirring. Bacteria and aerobic bacteria). Bacteria in the soil fungi naturally produce metabolites (secretions), but the metabolites have a deodorizing component, that is, an odor removing component, so that the deodorizing function can be exerted. The urine of livestock was used as a nutrient source because the feed of livestock is almost constant and the quality is stable, so that the quality of the deodorant liquid as the final product is stable. Also, the urine of livestock is difficult to treat, and it is currently dumped untreated in rivers and seas.
This is because it can be used at a low cost and can be used at the same time as the application of the present invention. Furthermore, humus is used because it has a particularly high content of facultative anaerobic bacteria, and high-quality humus can be obtained relatively easily and at low cost.

[0011] In the present specification, humus refers to black-brown organic matter formed by decomposing animals and plants contained in soil, coal, and the like. More specifically, humus is a substance in which plants and animals are decomposed by microorganisms, carbon dioxide, water, and the like. Along with inorganic gas such as ammonia, low molecular weight organic substances such as saccharides, quinones, amino acids, and proteins are formed, and these low molecular weight organic substances repeatedly undergo dehydration bonds to become high molecular resynthesis products. It is a general term for decomposed and undecomposed organic matter, and naturally includes humus.

The water quality of the deodorant liquid according to the present invention is NH
_4- N (Ammonia Nitrogen): 5 ppm or less and NO ₂ -N (Nitrite Nitrogen): 1 ppm or less and NO ₃ -N (Nitrate Nitrogen): 30 ppm or less, limited to 100 coliforms / mg or less This was derived from the results of testing the water quality of the generated deodorant liquid. As described in claim 2, the deodorant solution is diluted 5 to 10 times with water, and the diluted deodorant solution is sprayed at 100 to 500 cc / m ^{2 with a} sprayer, and a livestock barn, a pork barn, a poultry barn, etc. It can be used as a deodorant solution.

The deodorant solution of the present invention contains a large amount of soil bacteria, particularly facultative anaerobic bacteria, and livestock, such as cows, pigs and poultry houses, contains human nutrients as a nutrient source. Therefore, the deodorizing effect, which is considered to be due to the action of facultative anaerobic bacteria, is exhibited.
Soil bacteria such as facultative anaerobic bacteria that survive in the deodorant liquid grow using human waste as a nutrient source, so the diluted deodorant liquid has a sufficient deodorizing effect and a long-lasting deodorizing effect. I do. In addition, secretions produced by soil bacteria such as facultative anaerobic bacteria have a bactericidal action and an antibacterial action.

[0014] The method for producing a deodorant liquid according to claim 3 is characterized in that:
In a biological treatment tank that stores urine of cattle, pigs, chickens, and other livestock,
A humus having a weight equal to the biochemical oxygen demand (BOD) of the biological treatment tank was charged, and air was stirred for several days. When sludge was generated and urine odor disappeared, BOD volume load was applied to the biological treatment tank. There supplying the urine to be less than ³ · day 0.5 kg / m, the urine of a mixture of humus of the biological treatment tank was transferred to the sedimentation tank, the solid in the supernatant and sludge in the sedimentation tank Liquid separation,
The water quality of the supernatant is NH ₄ -N: 5 ppm or less and NO ₂ -N: 1p
pm or less and NO ₃ -N: 30 ppm or less, the number of coliform bacteria is adjusted to 100 / mg or less, and then the supernatant is collected.

According to the third aspect of the present invention, the deodorant liquid can be produced by simple equipment having three tanks as a main component and in a short period of several days to about ten days. Very low manufacturing costs are achieved thanks in part. Further, the reason why humus having a weight equal to the BOD is introduced into the urine of livestock is that, in order to efficiently culture bacteria in the humus in a short period of time, it is necessary to introduce at least the same amount of humus as the BOD. is there.

Further, when urine is supplied to the biological treatment tank so that the BOD volume load is 0.5 kg / m ³ · day or less, the BOD volume load becomes too high (eg, 200
mg / l), while NH ₄ —N and NO ₂ —N increase, while NO ₃ —N decreases, resulting in a so-called untreated state. In other words, when treated according to the present invention, the nitrogen (N) content is reduced by NH ₄ -N → NO by the bacteria.
It changes in the order of _2- N → NO ₃ -N. The treated water (deodorant solution) according to the present invention does not rot even if left for one month or two months, but in an untreated state, rot starts in 2-3 days,
This is because the color gradually changes to black, and a bad smell may be generated. In actual processing, 0.8 kg / m ³
There were no particular problems up to the date.

[0017] As described in claim 4, it is desirable that the humus formed into a pellet is immersed in the urine of the biological treatment tank in a water-permeable container such as a net bag or a basket.

According to the fourth aspect of the present invention, the humus containing pellets in the water-permeable container continuously dissolves in the urine, so that the humus-containing bacteria using the urine as a nutrient source (soil bacteria such as facultative anaerobic bacteria). Cultivation (biological treatment operation) is promoted, and stabilization is achieved.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a deodorant liquid and a production method according to the present invention will be described with reference to the drawings.

FIG. 1 is a front sectional view schematically showing an embodiment of a method for producing a deodorant liquid. As shown in FIG. 1, the equipment mainly includes a raw water tank 1, an aeration tank (also referred to as a biological treatment tank) 2
And a settling tank 3. In the raw water tank 1, urine of livestock such as pig urine, cow urine, urine of a mixture thereof, or chicken urine flows in and is stored. In this example, it is assumed that pig urine is used. Urine U in raw water tank 1
The urine is supplied to the biological treatment tank 2 through the urine supply pipe 5 by the pump 4.

The urine U in the biological treatment tank 2 is
Humus F having the same weight as the biochemical oxygen demand (BOD) of the humus is introduced. The biological treatment tank 2 is provided with a device that supplies air with a blower (not shown) and agitates the urine U in the biological treatment tank 2 together with the humus F. The urine U and the humus F are introduced with air A. And uniformly mixed. After such air stirring operation is continued for several days to about 10 days,
Sludge D is generated in the biological treatment tank 2. At about the same time, the odor of the urine U 'in the biological treatment tank 2 disappears. When the odor of the urine U' disappears, the urine U in the raw water tank 1 is transferred to the biological treatment tank 2 by the pump 4. And adjust so that the BOD volume load is 0.5 kg / m ³ · day or less.

In the biological treatment tank 2, the humus F 'formed into a pellet is immersed in a water-permeable container 8 having a mesh size smaller than the humus pellet, such as a net bag or a basket.
This is to stabilize the biological treatment operation of urine U ′.

As described above, urine U ′ in biological treatment tank 2
After adjusting the BOD volume load to 0.5 kg / m ³ · day or less, the upper urine U ′ in the biological treatment tank 2 is sent to the sedimentation tank 3 via a feed pipe 6 by a pump (not shown). Pay. In the sedimentation tank 3, the sludge D contained in the urine U sinks and is separated from the supernatant V by solid-liquid separation. The settled sludge D is circulated to the biological treatment tank 2 through a circulation pipe 7 by a pump (not shown). The supernatant V in the sedimentation tank 3 is collected, and the quality of the supernatant V is inspected. As a result of inspection, it was found that NH ₄ -N (ammonia nitrogen): 5 ppm or less, NO ₂ -N (nitrite nitrogen): 1 ppm or less, and NO ₃ -N (nitrate nitrogen): 3
If it is 0 ppm or less and the number of coliforms is 100 / mg or less, it can be used as a deodorant, so the supernatant V in the precipitation tank 3 is pumped into a container. The deodorant liquid produced in this way exerts a remarkable deodorant effect particularly on ammonia-based and hydrogen sulfide-based odors, and is therefore sprayed in a sprayer. In order to eliminate the bad smell of pigs and barns, the supernatant V is diluted 5 to 10 times with water, and 100 to 500 cc /
By spraying about m ² , a sufficient deodorizing effect can be obtained, and the effect lasts for a long time. In addition, it has a sterilizing effect or an antibacterial effect as well as a deodorizing effect.

By the way, when the deodorant solution according to the above-mentioned embodiment of the present invention was analyzed (analysis method JIS K ^0120-1993 ), the analysis results as shown in Table 1 below were obtained. Table 1 Analysis items BOD Chemical oxygen demand (COD _MN ) Total nitrogen (TN) Total phosphorus (TP) Analytical value 110 mg / l 220 mg / l 73 mg / l 9.2 mg / l The deodorant liquid of the example is the numerical value (BOD: 5000 pp) of the water quality (properties) of the urine of the pig described in the section of the prior art.
m, suspended matter (SS): 4500 ppm, total nitrogen: 7780 ppm, ammonia nitrogen: 1082 ppm, albumin nitrogen: 967 ppm). Generally, in the case of livestock effluent such as human waste,
The biological treatment is carried out by diluting with about 2 to 5 times the amount of fresh water, but the treatment liquid (deodorant liquid) described above in this example can be treated without dilution.

Although there is no particular limitation on the type of humus F, the fallen leaves of deciduous trees and decomposed substances derived from animals are sufficiently decomposed under a warm climate and then recombined. It is desirable to use humus, which is made from neutral corrosion formed by saturation with calcium, is reduced in molecular weight by biotechnology, and is increased in amount to be stabilized as micellar colloid. Neutral corrosion is the result of 8,000 years of closed burial underground and the amount of vegetative corrosion degraded by microorganisms is high, and therefore the content of fulvic acid and its iron complex produced by biotechnology is low. This is because it reaches 10%.

[0026]

As is apparent from the above description,
The deodorant liquid and the method for producing the same according to the present invention have the following excellent effects.

(1) The deodorant liquid according to claim 1 is obtained by mixing the livestock urine and the humus and mixing the air with the air while stirring the soil bacteria group in the humus (facultative anaerobic bacteria, aerobic bacteria, or facultative bacteria). Anaerobic bacteria and aerobic bacteria Barteria). Bacteria in the soil fungi naturally produce metabolites (secretions), but since the metabolites have a deodorizing component, that is, an odor removing component, the deodorizing effect can be exerted. Since livestock urine is used as a nutrient source, the quality of the deodorant liquid as a final product is stable. In addition, since livestock urine is converted into a deodorant liquid, livestock urine can be processed at the same time.

(2) The deodorant liquid according to the second aspect effectively exerts the deodorant effect with a small amount and maintains the deodorant effect for a long time. In addition, an antibacterial effect as well as a deodorizing effect is simultaneously generated.

(3) According to the production method of the third aspect, the deodorant liquid can be produced by simple equipment having three tanks as a main component and in a short period of several days to ten days.
Inexpensive raw materials also contribute to achieve extremely low production costs.

(4) According to the invention of claim 4, the humus containing pellets in the water-permeable container continuously dissolves in the urine, so that the humus-containing bacteria (such as facultative anaerobic bacteria) using urine as a nutrient source can be used. Cultivation (biological treatment work) of soil fungi) is promoted,
Stabilization is achieved.

[Brief description of the drawings]

FIG. 1 is a front sectional view schematically showing an embodiment of a method for producing a deodorant liquid according to the present invention.

[Explanation of symbols]

 Reference Signs List 1 raw water tank 2 aeration tank (biological treatment tank) 3 sedimentation tank 4 pump 5 supply pipe 6 feed pipe 7 circulation pipe U / U 'urine F / F' humus V supernatant (deodorant) A air D sludge

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Senjiro Ikari 2-3-9 Shinmachi, Mizuguchi-machi, Koka-gun, Shiga Prefecture (72) Inventor Kimiaki Hattori 5-16-3 Miyama, Funabashi-shi, Chiba F-term (reference) 4C080 CC13 CC15 HH03 JJ03 KK06 MM33 4D002 AA03 AA13 AB02 AC10 BA02 BA15 BA17 CA01 DA58 DA59 DA66 EA20 GA02 GB08 GB20 HA10

Claims (4)

[Claims] 1. A method comprising: using a urine of livestock such as cattle, pigs and chickens as a nutrient, cultivating bacteria contained in the humus while stirring with air, separating sludge generated and collecting a supernatant liquid collected. An odorant, wherein the water quality of the deodorant is NH ₄ -N: 5 ppm or less and NO ₂ -N: 1 p
A deodorant solution characterized by being not more than pm and NO ₃ -N: not more than 30 ppm, and having the number of coliforms being not more than 100 / mg. 2. The deodorant liquid is diluted 5 to 10 times with water,
Livestock house for deodorizing liquid, such as a barn, pigsty, poultry houses of claim 1 100~500cc / m ² spraying the diluted liquid deodorant in sprayer. 3. In a biological treatment tank for storing urine of livestock such as cattle, pigs and chickens, the biochemical oxygen demand (B
OD), and humus with the same weight as that of OD) was added. The air was stirred for several days. When sludge was generated and urine odor disappeared, B was added to the biological treatment tank.
The urine is supplied so that the OD volume load is 0.5 kg / m ³ · day or less, and urine mixed with humus in the biological treatment tank is transferred to a sedimentation tank. The supernatant has a water quality of NH ₄ -N: 5 ppm or less, NO ₂ -N: 1 ppm or less and NO ₃ -N: 30 ppm or less, and the number of coliform bacteria is 100 / m 2.
g, and then collecting the supernatant as a deodorant liquid after adjusting the amount to less than g. 4. The method for producing a deodorant liquid according to claim 3, wherein the humus formed in the form of pellets is stored in a water-permeable container such as a net bag or a basket and immersed in the urine of the biological treatment tank. .