KR20220124957A - Odor reducing agent composition for livestock barn and odor reducing method using the same - Google Patents

Abstract

The present invention relates to a livestock barn odor-reducing agent composition which is administered to pig manure sludge, chicken or cow compost, and the like to effectively suppress and neutralize volatilization of malodorous components such as ammonia generated from the inside of a livestock barn or from livestock manure, and a livestock barn odor-reducing method using the same. To this end, the present invention provides the livestock barn odor-reducing agent composition comprising aluminum sulfate, sodium hydrogen sulfate, and an essential oil of Chamaecyparis pisifera Endl., and a livestock barn odor-reducing method administering 0.1 to 30 parts by weight of the livestock barn odor-reducing agent composition with respect to 100 parts by weight of pig manure sludge, chicken compost, or cow compost. The livestock barn odor-reducing agent composition has excellent pH stability and can effectively suppress and neutralize ammonia gas generated from the inside of a livestock barn or from livestock manure without affecting change in a colony and the number of bacteria, thereby being usefully used as an odor reducing agent, an odor masking agent, and a livestock manure composting agent for the inside of a livestock barn, such as a pig barn, a chicken barn, a cow barn, and the like, and for livestock manure.

Description

Barn odor reducing agent composition and method for reducing livestock odor using the same

The present invention relates to a livestock odor reducing agent composition comprising aluminum sulfate, sodium hydrogen sulfate, and cypress essential oil, and a livestock odor reduction that can effectively suppress and neutralize the volatilization of odor components such as ammonia generated inside the livestock or from livestock manure using the composition it's about how

Odors such as ammonia volatilized from livestock houses have recently been the subject of severe complaints. Ammonia is a very harmful substance for workers and farmers working in barns. In addition, ammonia volatilization in livestock manure not only causes acid rain, but also has a detrimental effect on the external environment.

In particular, compost or livestock manure that is not ripened causes gas damage to the house or becomes a odor-causing substance in rice fields or fields in spring and becomes a subject of civil complaints.

Scarborough and Valentine reported that ammonia concentration in the barn air was 60 to 70 μl per liter, and Anderson et al. reported that 100 μl per liter was present. The Controlo of Substances Hazardous to Health (COHH) states that you should not be exposed to ammonia at 35 μl per liter for 10 minutes and 25 μl ammonia for 8 hours.

Ammonia concentrations in the barns are high in winter because the curtains and windows are closed and the air emissions are reduced. If the ammonia concentration inside the barn is high, it causes damage to the respiratory tract, increases various diseases, and reduces the growth rate, productivity, and feed efficiency.

Since the 1950s, various chemical agents were used for the first time to suppress volatilization of odors such as ammonia from inside or from livestock. Carlile said that these chemicals fall into two categories. One is to alleviate uric acid ripening by the growth of microorganisms, and the other is to bind or neutralize ammonia release.

Chemicals include zeolite, phosphoric acid, iron sulfate, limestone, gypsum, magnesium, eucasaponin, acetic acid and propionic acid. However, these chemicals do not faithfully fulfill their roles as odor reducing agents and odor masking agents depending on farm conditions.

On the other hand, the prior art Korean Patent Application Laid-Open No. 10-2010-0041927 (published on April 23, 2010) discloses a deodorant composition for livestock containing 10 to 40% by weight of a mixture of laurylamine and nonylphenol based on the total composition. In Korea Patent Publication No. 10-2015-0004128 (published on 12.01.2015), manure fermentation comprising iron, magnesium, manganese, zinc, copper, boron, molybdenum, sulfate ion, microbial activator, natural fragrance, etc. An aqueous solution composition for degassing and ammonia gas is disclosed. In addition, Korea Patent Publication No. 10-2020-0101629 (published on August 28, 2020) discloses Lactobacillus plantarum or It is described that a composition containing Streptococcus thermophilus is effective in reducing ammonia and mercaptomethanol, which are odor components of livestock manure.

Republic of Korea Patent Publication No. 10-2010-0041927 (published on April 23, 2010) Republic of Korea Patent Publication No. 10-2015-0004128 (published on 12.01.2015) Republic of Korea Patent Publication No. 10-2020-0101629 (published on August 28, 2020)

An object of the present invention is to provide a livestock odor reducing agent composition capable of effectively suppressing and neutralizing volatilization of odor components such as ammonia generated from pig manure sludge, poultry compost or barn compost. Another object of the present invention is to provide a method for effectively reducing odors generated inside or from livestock by administering the composition for reducing barn odor to pig manure sludge, poultry compost or barn compost.

In order to achieve the above object, the present invention provides a livestock barn odor reducing agent composition comprising aluminum sulfate, sodium hydrogen sulfate and essential oil of Japanese cypress.

Here, the livestock odor reducing agent composition may be composed of 45% by weight of aluminum sulfate, 45% by weight of sodium hydrogen sulfate, and 10% by weight of essential oil of Japanese cypress.

In addition, the present invention provides a method for reducing barn odor, characterized in that 0.1 to 30 parts by weight of the livestock barn odor reducing agent composition is administered with respect to 100 parts by weight of pig manure sludge, poultry compost or barn compost.

The livestock odor reducing agent composition according to the present invention has excellent pH stability and can effectively suppress and neutralize ammonia gas generated from the inside or livestock manure without affecting changes in the microbial flora and number of livestock, such as pig houses, poultry houses and barns. It can be usefully used as an odor reducing agent for internal and livestock manure, an odor masking agent, and as an auxiliary agent for livestock compost.

1, 2 and 3 are graphs showing the results of measuring ammonia levels after each correcting agent was added to pig manure sludge, poultry compost (litter) and barn compost (litter), respectively.
4, 5 and 6 are graphs showing the results of measuring the pH change after each correcting agent was added to pig manure sludge, poultry compost (litter), and barn compost (litter), respectively.
7, 8, and 9 are graphs showing the results of measuring the changes in the bacterial flora after each correcting agent was treated in pig manure sludge, poultry compost (litter) and barn compost (litter), respectively.
10 is a view of a piglet house in an actual farm to which the barn odor reducing agent according to the present invention is administered.
11 and 13 are views of measuring ammonia concentration at the piglet house exhaust before and after administration of the livestock odor reducing agent according to the present invention, respectively.
12 is a view of measuring the ammonia concentration inside the piglet house after administration of the odor reducing agent according to the present invention.
14 and 15 are views of measuring the ammonia concentration in the broiler house before and after administration of the barn odor reducing agent according to the present invention, respectively.
16 is a graph showing the results of measuring the degree of maturation of barn compost (bedding).

The present invention may be embodied in several different forms and is not limited to the experimental examples and embodiments described herein. The terms used in the present invention are only used to describe specific embodiments, and are not intended to limit the present invention. In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs.

The livestock odor reducing agent composition according to the present invention consists of aluminum sulfate, sodium hydrogen sulfate, and essential oil (essential oil extracted from cypress). When administered to pig manure sludge, poultry compost or barn compost, respectively, aluminum sulfate, sodium bisulfate, and cypress essential oil have excellent pH stability and effectively prevent volatilization of odor components such as ammonia without affecting changes in the microbial flora and number of bacteria. It is suitable as a component of the composition according to the present invention because it has the effect of suppressing, neutralizing and alleviating the solidification of manure sludge.

As a method of extracting essential oil from Japanese cypress, a compression method, a solvent extraction method, a steam distillation method, and the like are known.

When comprehensively considering the odor removal and reduction effect, the odor masking effect, and the function as a side dish, the livestock odor reducing agent composition according to the present invention contains 45% by weight of aluminum sulfate, 45% by weight of sodium hydrogen sulfate, and 10% by weight of essential oil of cypress. It is desirable to do

In addition, in the livestock odor reduction method according to the present invention, 0.1 to 30 parts by weight of the livestock odor reducing agent composition is preferably administered with respect to 100 parts by weight of pig manure sludge, poultry compost or barn compost. If the dosage of the livestock odor reducing agent composition is less than 0.1 parts by weight, it is difficult to expect malodor removal and reduction effects, etc.

Hereinafter, a livestock odor reducing agent composition according to the present invention and a method for reducing a livestock odor using the same will be described in more detail with reference to examples. However, the following experimental examples and examples are only for illustrating the present invention, and the scope of the present invention is not limited thereto.

<Experimental example>

1. Materials and Experimental Methods

Materials: sulfuric acid (H ₂ SO ₄ .7H ₂ O), hydrochloric acid (HCl), iron sulfate (FeSO ₄ .7H ₂ O), iron chloride (FeCl 7H ₂ O), copper sulfate (CuSO ₄ .7H ₂ O), sulfuric acid Chemicals such as aluminum (Al ₂ (SO ₄ ) ₃ ) and sodium hydrogen sulfate (NaHSO ₄ ) were purchased from a chemical agricultural material company in Hongseong, Chungcheongnam-do, and essential oil was imported and used. The samples, pig manure sludge, poultry compost (coil litter) and barn compost (coil litter) were supplied from a farm in Hoengseong-gun, Gangwon-do and used in this experiment.

Based on the following reaction formula, the ammonia removal effect and the sludge solidification relief effect were expected, and each of the above chemical agents and Japanese cypress essential oil were added as corrective agents in an amount corresponding to 1% of the sample weight for each sample.

The expected reaction equations for each chemical to ammonia are as follows.

Sulfuric acid: NH ₃ OH + H ₂ SO ₄ = (NH ₄ ) ₂ SO ₄ + H ₂ O

Hydrochloric acid: NH ₃ OH + HCl = (NH ₄ )Cl + H ₂ O

Iron sulfate: (NH ₃ OH) ₂ SO ₄ + FeSO ₄ + H ₂ SO ₄ = Fe ₂ (SO ₄ ) ₃ + (NH ₄ ) ₂ SO ₄ + H ₂ O

Iron hydrochloride: NH ₃ OH + FeCl ₃ = Fe(OH) ₃ + NH ₃ Cl

Copper sulfate: NH ₃ OH + CuSO ₄ = Cu(OH)2 + (NH ₃ ) ₂ SO ₄

Aluminum sulfate: 6NH ₄ OH + Al ₂ (SO ₄ ) ₃ = 3(NH ₄ ) ₂ SO ₄ + 2Al(OH) ₃

Sodium hydrogen sulfate: NH ₃ OH + NaHSO ₄ = Na ₂ SO ₄ + (NH ₄ ) ₂ SO ₄

NH ₃ + NaHSO ₄ + H ₂ O = (NH ₄ ) ₂ SO ₄ + NaOH

2. How to measure

go. Determination of ammonia content

(1) Measurements in the laboratory

Ammonia measurement in the laboratory for each treatment group was analyzed using Gas Chromatograph (Yongin science), and the treatment group was automatically sampled every 3 days to measure ammonia concentration for 30 days. All treatment tubes were cultured in a 30°C incubator, and humidity was not controlled.

(2) Measured on the farm

In the case of a piglet house, it was measured using an ammonia meter at the exhaust port of the piglet using an ammonia meter. In the case of broilers, measurements were made at a height of 1 m from the floor of the broiler house.

me. Changes in the microbial flora

The various treatment groups analyzed in the laboratory confirmed the change in the microflora before and 30 days after the start. Confirmed.

(1) Measurement of the number of lactic acid bacteria

Lactobacilli MRS Agar (Difco) was used, and the culture medium was put into CO ₂ Gas Tek and cultured at 37° C. for 72 hours, and then the number of bacteria was measured.

(2) Measurement of the number of Bacillus bacteria

After culturing for 24 hours at 37°C using Tryptic Soy Agar (Difco), the number of bacteria was measured.

(3) Measurement of general total number of bacteria

After culturing for 72 hours at 32°C using standard plate agar (Difco), the number of bacteria was measured.

All. pH measurement of sludge

It was measured using a pH meter.

la. Measurement of immaturity

1g of each compensator was mixed with 200g of each sample, and the generation of ammonia and CO ₂ was measured using a maturation meter.

3. Results

go. Ammonia measurement

1 is a graph showing the results of measuring ammonia for 30 days using a gas chromatograph in units of 5 days while culturing pig manure sludge collected from a pig house in a 30 ° C incubator. The non-corrector-treated group was 15 ppm on the 0th day, and the ammonia concentration continued to rise until the 30th day, and on the 30th day it rose to 251 ppm. Each corrector dropped from 15 ppm to 0 ppm as soon as it was added. Sulfuric acid and hydrochloric acid were maintained at 0 ppm for 30 days. Ammonia levels were maintained lower in aluminum sulfate and cypress oil (represented as pine oil in each figure) than iron sulfate, iron chloride, copper sulfate, and sodium hydrogen sulfate.

2 and 3 are graphs showing the results of measuring the ammonia level after each correcting agent was added to the cage compost (coil litter) and the barn compost (coil litter), respectively.

Sulfuric acid and hydrochloric acid are the cheapest and have an excellent ammonia removal effect, but when added to pig manure sludge, they bubble up and are designated as toxic and dangerous substances, so it is difficult to actually use them in farms. Copper sulfate should be contained in an appropriate amount in the farmhouse compost, but the amount used in this experiment was not appropriate as it exceeded the appropriate standard. Iron sulfate had a problem in that it was not easy to handle due to the low pH.

In the end, it was found that the most suitable corrective agent for effectively reducing the odor of livestock houses was the essential oil of cypress.

me. pH measurement

Figure 4 is a graph showing the results of measuring the pH change in units of 5 days for 30 days after each correcting agent was added to pig manure sludge. To the sample pig manure sludge, 2 parts by weight of each chemical agent as a correcting agent and essential oil of Japanese cypress per 100 parts by weight of the sample were added.

The non-corrector-treated group increased from pH 7.5 to pH 8.5. When sulfuric acid and hydrochloric acid were added, the pH was 2.4 and 3, respectively. Sulfuric acid and hydrochloric acid are strong acids, and when they are added to pig manure sludge, they have foaming and explosive properties. Iron sulfate, iron chloride, and copper sulfate started at pH 4 and showed a pH of 6 at 30 days.

Aluminum sulfate and sodium hydrogen sulfate started at pH 5.3 and pH 4.7, respectively, and showed a pH of 6 and a pH of 6.5 on the 30th day, respectively. The pH stability of pig manure sludge was confirmed to be the best with aluminum sulfate, sodium hydrogen sulfate, and cypress essential oil.

5 and 6 are graphs showing the results of measuring the pH change in units of 5 days for 30 days after each correcting agent was added to the cage compost (coil litter) and barn compost (coil litter), respectively.

The control group, which was not treated with the corrector, started at pH 7.5 and increased to pH 9.3 at 30 days, and hydrochloric acid and sulfuric acid increased from pH 2.4 and pH 2.8 to pH 3.8 and pH 4.0. Iron chloride, iron sulfate, and copper sulfate started at pH 3.5, 3.8, and 4.0, respectively, and increased to pH 4.5, 5.5, and 5.0, respectively, at 30 days. Aluminum sulfate, sodium hydrogen sulfate, and cypress essential oil started at pH 5.3, pH 4.7 and pH 6.5, respectively, and increased to pH 6.2, 6.8 and 6.8, respectively, on the 30th day.

Due to the nature of the breeding of broilers, excessive use of sulfuric acid, hydrochloric acid, iron sulfate, iron chloride, and copper sulfate should be avoided because if the pH is too low after corrective treatment, the chicken feet may become inflamed.

6 is a graph showing the results of measuring the pH change in units of 5 days for 30 days after each correcting agent was added to the barn compost (coast litter). As in FIG. 5, a similar type of pH change was exhibited.

All. Changes in the microbial flora

7, 8, and 9 are each treated with aluminum sulfate, sodium hydrogen sulfate, and essential oil of cypress oil in pig manure sludge, poultry compost (litter), and barn compost (litter), and then measuring the change in the bacterial flora for 30 days. This is a graph showing the results. As can be seen from the graphs in each figure, each of the treated correctors (aluminum sulfate, sodium hydrogen sulfate, and cypress essential oil) did not appear to affect the microbial flora and the number of bacteria.

<Example> Preparation of livestock odor reducing agent and measurement of odor reduction effect

Through the above experiment, aluminum sulfate, sodium bisulfate, and essential oil of cypress tree essential oil were mixed in a weight ratio of 4.5:4.5:1, which was confirmed to have excellent odor removal effect and pH stability, and did not affect changes in microbial flora and number of bacteria. A malodor reducing agent was prepared.

1. piglet house

80 pigs aged 45 days were stocked in a piglet house containing 30 tons of pig fecal sludge (see FIG. 10). As a result of measuring ammonia at the piglet house exhaust port before administration of the barn odor reducing agent, it was 33 ppm (see FIG. 11).

1 part by weight of the odor reducing agent prepared above was administered based on 100 parts by weight of pig fecal sludge. It showed 60 ppm until 5 hours after administration of the barn odor reducing agent, but then dropped to 5 ppm, and the concentration was maintained without supplementation of the barn odor reducing agent for 7 days (see FIG. 12).

It was determined that the reason for the increase in ammonia concentration up to 5 hours after administration of the livestock odor reducer was a temporary increase in ammonia concentration that occurred while the livestock odor reducer was dissolved in the sludge.

After that, 1 part by weight of a livestock odor reducing agent was administered to 100 parts by weight of pig fecal sludge generated weekly to maintain the amount of ammonia at a level of 5 ppm for one month.

2. Broiler

One week before the broiler planting, 1 part by weight of the barn odor reducing agent prepared above based on 100 parts by weight of the broiler compost (straw) was spread on the broiler compost (bedding). The ammonia concentration before administration of the livestock odor reducing agent was 100 ppm or more (see FIG. 14), and as a result of measuring the amount of ammonia after administration of the livestock odor reducing agent, it dropped to 0 ppm (see FIG. 15). The ammonia concentration in broilers was maintained at 0 ppm until 30 days of shipment.

3. Measuring the maturity of barn compost (bedding)

1 g of the barn odor reducing agent prepared above was mixed with 200 g of a barn compost (bedding) sample, and the degree of maturation was measured for 14 days. In the control group that was not treated with anything, a lot of ammonia and carbon dioxide were generated, but the ammonia and carbon dioxide generation in the barn odor reducing agent-treated group according to the present invention was very small for 2 weeks (see FIG. 16 ).

As described above, the livestock odor reducing agent composition according to the present invention has excellent pH stability and can effectively suppress and neutralize ammonia gas generated from the inside of the barn or livestock without affecting changes in the microbial flora and number of pigs, It can be usefully used as a odor reducing agent, odor masking agent, and composting agent for livestock and livestock manure inside livestock houses such as cages and barns.

As described above, preferred embodiments of the present invention have been described, but those skilled in the art to which the present invention pertains can modify that the present invention can be implemented in other specific forms without changing the technical spirit or essential features of the present invention. you will see that there is Therefore, the scope of the present invention is not limited to the described experimental examples and examples, and various modifications and variations can be made without departing from the spirit and scope of the present invention, and such modifications or variations are within the scope of the present invention. will have to

Claims (3)

A livestock barn odor reducing agent composition comprising aluminum sulfate, sodium hydrogen sulfate and essential oil of Japanese cypress. The method according to claim 1,
The livestock odor reducing agent composition is a livestock odor reducing agent composition, characterized in that it consists of 45% by weight of aluminum sulfate, 45% by weight of sodium hydrogen sulfate, and 10% by weight of essential oil of cypress. The livestock odor reducing agent composition of claim 1 or 2,
Pig manure sludge, livestock odor reduction method, characterized in that by administering 0.1 to 30 parts by weight based on 100 parts by weight of poultry compost or barn compost.

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