KR102121470B1 - Method and apparatus for treatmenting livestock manure - Google Patents

Abstract

An apparatus for treating livestock manure according to an embodiment of the present invention includes a primary treatment unit for performing primary treatment by mixing chlorine gas and a dehydration aid with animal manure; A filter unit connected to the primary treatment unit and filtering the primary treated livestock manure received from the primary treatment unit to separate into sludge and filtrate; And a secondary treatment unit connected to the filter unit and performing secondary treatment by mixing electrolytic sterilization water with the separated filtrate received from the filter unit.

Description

METHOD AND APPARATUS FOR TREATMENTING LIVESTOCK MANURE}

The present invention relates to a method for performing the treatment of livestock manure using electrolytic sterilization water and an apparatus for performing the method.

Due to economic growth and increased consumption of livestock products, the number of livestock breeding is increasing gradually. However, in the case of raising livestock, friction with residents around the barn is constantly a problem due to odor caused by manure caused by the livestock. Due to these problems, the number of livestock breeding heads has been designated to solve the friction between residents and livestock farmers around the house.

In addition, due to these problems, various legislation has been promoted to regulate, treat or utilize livestock manure. More specifically, the Ministry of Environment and the Ministry of Food, Agriculture, Forestry, and Fisheries said,'The Act on the Management and Use of Livestock Manure' 'And was enacted.

These animal manure treatment and use forms vary depending on the case of separating and mixing'minute' and'urine', and various methods such as composting, liquid fertilization, purification treatment, and energization depending on the characteristics of the collected manure and urine. There is this.

Currently, about 90% of domestic manure is converted into manure and manure, but as it begins to be recognized as a major pollutant for soil and rivers, environmental regulations such as the revision of the livestock manure law are continuously being strengthened, and the manure that has been sprayed on paddy fields and fields. · Liquid ratio has been pointed out as a major cause of green algae. In addition, there is a disadvantage in that supply is exceeded due to time and space constraints, and economic efficiency is low.

In particular, when the animal manure is processed in individual farms that are insufficient in processing technology and operation due to the large amount of moisture in the form of a slurry, there are problems such as odor caused by the animal manure, and environmental pollution, as well as the treatment stage. It occurs frequently. Accordingly, there is an urgent need to prepare measures to effectively treat livestock manure.

Korean Registered Patent No. 10-1041479 (Registered on June 28, 2011)

The problem to be solved by the present invention is to provide a method for reducing odors generated during the treatment of livestock manure and, further, a method for more effectively treating livestock manure and an apparatus for performing the method.

However, the problems to be solved by the present invention are not limited to those mentioned above, but are not mentioned, but include the purpose that can be clearly understood by those skilled in the art from the following description can do.

In the method for treating livestock manure according to an embodiment of the present invention, the primary treatment of livestock manure is performed by supplying chlorine gas and a dehydration aid to the primary treatment unit to which livestock manure is delivered, and the primary treated livestock manure is filtered. Filtered by a part to separate into a sludge and a filtrate, and electrolytic sterilization water is supplied to the separated filtrate from an electrolytic sterilization water supply unit, and the separated filtrate and the electrolytic sterilization water are mixed in a secondary treatment unit to filter It may include the step of performing a secondary treatment for the liquid.

In addition, the step of performing the primary treatment includes the steps of generating the chlorine gas by volatilizing the electrolytic sterilization water, and performing the primary treatment by mixing the chlorine gas and the dehydration aid with the livestock manure. It can contain.

In addition, the step of separating the sludge and the filtrate may include the step of transferring the separated filtrate to a secondary treatment unit for performing a secondary treatment, and the separated sludge being transferred to a sludge collection unit.

Further, the step of transferring the separated sludge to the sludge collection unit may include the step of transferring the separated sludge to the sludge collection unit when the weight of the separated sludge is measured and the measured weight is equal to or greater than a predetermined value. .

The livestock manure treatment apparatus according to an embodiment of the present invention is a primary treatment unit for performing primary treatment by mixing chlorine gas and a dehydration aid with livestock manure, connected to the primary treatment unit, and received from the primary treatment unit A filter unit that separates sludge and filtrate by filtering the first treated livestock manure, and is connected to the filter unit, and performs secondary treatment by mixing electrolytic sterilization water in the separated filtrate received from the filter unit It may include a secondary processing unit.

In addition, the chlorine gas supply for generating the chlorine gas by volatilizing the electrolytic sterilization water further includes, the primary processing unit may be supplied with the generated chlorine gas from the chlorine gas supply.

In addition, the electrolytic sterilization water is stored at a predetermined ratio or less of the total capacity, and a storage unit that volatilizes at least a portion of the stored electrolytic sterilization water to generate the chlorine gas, is connected to an upper portion of the storage unit, and is generated in the storage unit A chlorine gas supply unit for supplying the chlorine gas to the first processing unit, and an electrolytic sterilization water supply unit connected to a lower portion of the storage unit and supplying the electrolytic sterilization water not volatilized from the storage unit to the second processing unit. It can contain.

In addition, the filter unit may include a plurality of filter plates arranged at predetermined intervals, and the sludge may accumulate in the predetermined interval portion of the plurality of filter plates.

According to the embodiment of the present invention, by performing the step-by-step treatment of livestock manure using electrolytic sterilization water, it is possible to effectively reduce the odor caused by livestock manure. More specifically, in the embodiment of the present invention, the animal manure is separated into sludge and filtrate, but is treated with electrolytic sterile water at each stage before and after separation, as well as the stench of the finally treated animal manure, as well as in the treatment process. Odor generated can also be effectively reduced.

The effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those skilled in the art from the following description. will be.

Figure 1 shows a conceptual diagram for explaining the operation of the livestock manure processing apparatus according to an embodiment of the present invention.
Figure 2 shows an example of a livestock manure processing apparatus according to an embodiment of the present invention.
Figure 3 shows the flow of each step of the livestock manure treatment method according to an embodiment of the present invention.

Advantages and features of the present invention, and methods for achieving them will be clarified with reference to embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms, and only the embodiments allow the disclosure of the present invention to be complete, and those skilled in the art to which the present invention pertains. It is provided to fully inform the person of the scope of the invention, and the scope of the invention is only defined by the claims.

In describing the embodiments of the present invention, detailed descriptions of known functions or configurations will be omitted except when necessary in describing the embodiments of the present invention. In addition, terms to be described later are terms defined in consideration of functions in an embodiment of the present invention, which may vary according to a user's or operator's intention or practice. Therefore, the definition should be made based on the contents throughout this specification.

The present invention can be applied to various changes and may include various embodiments, and specific embodiments will be illustrated in the drawings and described in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood as including all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms including ordinal numbers such as first and second may be used to describe various components, but the components are not limited by these terms. These terms are only used to distinguish one component from another.

When a component is said to be'connected' or'connected' to another component, it is understood that other components may be directly connected to or connected to the other component, but other components may exist in the middle. It should be.

Figure 1 shows a conceptual diagram for explaining the operation of the livestock manure processing apparatus according to an embodiment of the present invention.

Referring to Figure 1, the livestock manure processing apparatus 100 according to an embodiment of the present invention can reduce the malodor of livestock manure and include various configurations for sterilization and disinfection treatment. More specifically, the livestock manure treatment apparatus 100 includes a livestock manure supply unit 101, a primary treatment unit 102, a dehydration auxiliary supply unit 107, a chlorine gas supply unit 108, a storage unit 110, and a filter unit 103 ), a secondary treatment unit 105, an electrolytic sterilization water supply unit 109, and a sludge collection unit 106. Although not illustrated, the livestock manure processing apparatus 100 may further include a component that connects between the respective components and transports substances (eg, livestock manure, chlorine gas) between the respective components. have.

The livestock manure supply unit 101 may supply livestock manure to the primary processing unit 102. The livestock manure supply unit 101 may store livestock manure excreted from livestock, and may supply livestock manure to the primary treatment unit 102 for the treatment of livestock manure.

The dehydration aid supply unit 107 may supply the dehydration aid to the primary processing unit 102. The dehydration aid supply unit 107 may receive and store a dehydration aid from the outside. Dehydration aids may include ferrous (Fe(II)) and sulfate ions (SO ₄ ^2- ). For example, the dehydration aid may include ferrous iron in an amount of 0.07 wt% or less and sulfate ion in an amount of 24 wt% or more and 29 wt% or less. These dehydration aids structurally have a three-dimensional configuration in which a portion of ferric sulfate SO ₄ ^{2 -} is transferred to OH ^- and can polymerize OH groups as crosslinks to form multinuclear complexes. According to an embodiment, the dehydration aid may be a red-brown liquid, specific gravity (20°C) of about 1.45 to 1.49, and viscosity (20°C) of 10 to 30 cps (centi poise). In addition, the pH (1w / v%) is 2 or more, a total Fe is at least 11%, chlorine ion (Cl ^-) and is less than 0.05wt%, the freezing point may be 12 ± 1 ℃. Such a dehydration aid may improve the flocculation capacity for the sludge mixed with the primary dehydration cake, and may include characteristics of low alkalinity consumption and low corrosiveness because it has a basicity. According to an embodiment, the dehydration aid supply unit 107 may have a facility for producing a dehydration aid, and in this case, the dehydration aid supply unit 107 produces a dehydration aid to produce a dehydration aid, and the dehydration aid produced in the primary treatment unit 102. Can supply.

The storage unit 110 may generate and store electrolytic sterilization water. The storage unit 110 may generate electrolytic sterilized water by adding electrolytic aids such as salt or hydrochloric acid to the tap water and electrolysis. More specifically, electrolytic sterilization water may be generated at the positive electrode (+ pole) of the electrode when electrolysis is performed by adding salt or hydrochloric acid electrolyte to water. The electrolytic sterilization water of the present invention can be generated using various known techniques, and is not limited to the examples described above. The electrolytic sterilization water may be strong acid electrolytic sterilization water, or slightly acid electrolytic sterilization water (or weak acid electrolytic sterilization water). However, the spirit of the present invention is not limited thereto, and for example, the storage unit 110 may simply store the electrolytic sterilization water transmitted from the outside.

The storage unit 110 may provide electrolytic sterilization water to the chlorine gas supply unit 108 and the electrolytic sterilization water supply unit 109. In this case, the chlorine gas supply unit 108 may generate chlorine gas by volatilizing the electrolytic sterilization water in order to obtain chlorine contained in the electrolytic sterilization water in a gas form. The chlorine gas supply unit 108 may supply chlorine gas to the primary processing unit 102.

In some cases, the storage unit 110 may directly generate chlorine gas by volatilizing electrolytic sterilization water. More specifically, the storage unit 110 may store electrolytic sterilized water at a predetermined ratio or less of the total capacity, and volatilize at least a portion of the electrolytic sterilized water to generate chlorine gas. In this case, the storage unit 110 may include a space in which the chlorine gas can be located in the electrolytic sterilized water as much as the remaining proportion of the total capacity that does not store the electrolytic sterilized water. Can be. The chlorine gas supply unit 108 is connected to the upper portion of the storage unit 110 where chlorine gas is concentrated, so that chlorine gas may be supplied from the storage unit 110 to the chlorine gas supply unit 108. Accordingly, the chlorine gas supply unit 108 may provide chlorine gas to the primary processing unit 102. On the other hand, the electrolytic sterilization water supply unit 109 is located in the lower portion of the storage unit 110 may receive the electrolytic sterilization water that is not volatilized from the storage unit 110. As will be described later, the electrolytic sterilization water supply unit 109 may provide the electrolytic sterilization water supplied from the storage unit 110 to the secondary processing unit 105.

The primary treatment unit 102 performs primary treatment by mixing the animal manure supplied from the livestock manure supply unit 101 with the dehydration aid supplied from the dehydration aid supply unit 107 and the chlorine gas supplied from the chlorine gas supply unit 108. can do. The primary processing unit 102 can reduce odor in the air present by livestock manure using chlorine gas. By supplying chlorine gas from the start of the treatment of livestock manure, it is possible to reduce not only the odor of the final treated manure, but also the odor continuously generated in the treatment process. In addition, the primary treatment unit 102 may use a dehydration aid to cause a chemical action to facilitate separation of sludge and filtrate from livestock manure. The chemical action for facilitating separation of the sludge and the filtrate may include an action of improving dehydration by partially destroying water molecules bound to the sludge. However, the present invention is not limited thereto, and may include various chemical reactions to facilitate separation of sludge and filtrate.

When the primary treatment is completed, the primary treatment unit 102 may supply the primary manure treated to the filter unit 103.

The filter unit 103 may separate livestock manure into a solid component and a liquid component. Here, the solid component may mean sludge of livestock manure, and the liquid component may mean a filtrate of livestock manure. Referring to FIG. 1, the filter unit 103 may include a plurality of filter plates (eg, the filter plate 104). In some cases, the plurality of filter plates may include a medium compression filter plate. In this case, the filter unit 103 includes a compressed fluid supply line through which a compressed fluid containing water or air is supplied, a compressed fluid head supplied from the compressed fluid supply line and distributed to each compressed filter plate, and each compressed fluid head. It may further include a compressed fluid hose for supplying the compressed fluid to the filter plate.

The plurality of filter plates of the filter unit 103 may be disposed at a predetermined interval (or width), and accordingly, a space having a predetermined interval may be formed. This interval becomes the thickness of the livestock manure sludge and can accumulate livestock manure sludge in this area. More specifically, the filter unit 103 may allow the sludge of the animal manure to accumulate in a space between the plurality of filter plates by passing the animal manure through a filter cloth surrounding the surface of the filter plate 104. At this time, the liquid component of the livestock manure, that is, the filtrate does not accumulate and can pass through the filter plate, thereby separating the sludge and the filtrate. The filter unit 103 may transfer the separated sludge to the sludge collection unit 106 and transfer the filtrate separated from the sludge and passed through the filter plate to the secondary processing unit 105.

Although not shown, in some cases, the filter unit 103 may include a sensor for measuring the weight of the sludge accumulated at the bottom, and an opening/closing device for controlling the connection with the transfer unit. The filter unit 103 may measure the weight of the accumulated sludge using a sensor, and when the measured weight is greater than or equal to a predetermined value, the opening and closing device may be opened to allow the accumulated sludge to be transferred to the sludge collection unit through the transfer unit. .

The secondary treatment unit 105 may perform secondary treatment by mixing electrolytic sterilization water and filtrate. Electrolytic sterilization water used for the secondary treatment may be provided from the supply unit 109. The electrolytic sterilizing water supply unit 109 may provide the electrolytic sterilizing water stored in the storage unit 110 as a secondary processing unit. By mixing the filtrate and electrolytic sterilization water in the secondary processing unit 105, it is possible to reduce odor generated in the filtrate and sterilize and disinfect the filtrate.

The sludge collection unit 106 may store sludge supplied from the filter unit 103. The sludge collection unit 106 may be subjected to additional treatment suitable for the sludge of solid characteristics, or may be used as resource and compost by itself.

As described above, the present invention can reduce the odor generated by livestock manure by supplying chlorine gas from the start of the treatment of livestock manure. In addition, the animal manure can be separated into a sludge having a solid characteristic and a filtrate having a liquid characteristic, and odor reduction, sterilization and disinfection treatment can be performed in a manner suitable for the characteristic. For example, odor reduction, sterilization and disinfection can be performed more effectively by mixing electrolytic sterilization water having liquid characteristics in the filtrate.

Figure 2 shows an example of a livestock manure processing apparatus according to an embodiment of the present invention. However, FIG. 2 is merely an example of implementation of a livestock manure treatment device, but is not limited thereto. Hereinafter, content overlapping with FIG. 1 may be omitted.

Referring to FIG. 2, the livestock manure processing apparatus 100 includes a livestock manure supply unit 101, a primary processing unit 102, a dehydration auxiliary supply unit 107, a chlorine gas supply unit 108, a storage unit 110, and a filter unit. (103), a secondary treatment unit 105, may include an electrolytic sterilization water supply unit (109). Each of these components may be connected to each other through the first transfer unit 201, the second transfer unit 202, the third transfer unit 203, the fourth transfer unit 204, the fifth transfer unit 205, or the sixth transfer unit 206. Can. Based on the connection, substances (eg livestock manure, chlorine gas, electrolyzed water) can be transferred (or delivered) from one composition to another. For example, the primary processing unit 102 and the filter unit 103 may be connected through the sixth transfer unit 201. The livestock manure that has been primarily processed through the sixth transfer unit 201 may be transferred from the primary treatment unit 102 to the filter unit 103. Each transfer unit (for example, the first transfer unit 201 and the second transfer unit 202) may be in the form of a connection tube including a space therein. According to an embodiment, each transport part may include a pump (eg, a pressure pump or a pressure pump) for smoothly transporting the incoming material. For example, pressure may be provided in the first transfer unit 201 using a pump, and accordingly, livestock manure may be transferred from the primary processing unit 102 to the filter unit 103. That is, the substances (eg, livestock manure, chlorine gas, dehydration aids, electrolytic sterilization water) that are transferred by increasing the pressure of each transfer unit may be transferred. For each conveying section for providing pressure, the pump may use various well-known pumps, for example, a monopump, a diaphragm pump, and is not limited to the examples described above in this specification.

As shown in FIG. 2, the filter unit 103 may be composed of a plurality of filter plates including the filter plate 104, and each of the plurality of filter plates may be arranged in layers. At this time, sludge of livestock manure may accumulate between a plurality of filter plates, and the filtrate may be transferred to the second processing unit 105 through a transfer unit connected to a bottom funnel-shaped tap portion of the filter unit 102. .

On the other hand, the animal manure processing apparatus 100 of FIG. 2 does not separately show the sludge collection unit 106 assuming that the user manually obtains the animal manure sludge from the filter, but the animal manure processing apparatus 100 is sludge Needless to say, the collection unit 106 may be included as a component.

Figure 3 shows the flow of each step of the livestock manure treatment method according to an embodiment of the present invention. Needless to say, each step of the method illustrated in FIG. 3 may be performed by changing the order of the steps illustrated in the drawings.

Referring to FIG. 3, the primary treatment unit 102 may perform a primary treatment of livestock manure by mixing chlorine gas and dehydration aid volatilized in electrolytic sterilization water with livestock manure (S301). The chlorine gas may be supplied from the chlorine gas supply unit 108, and the dehydration aid may be supplied from the dehydration aid supply unit.

The filter unit 203 may separate the primary treated animal manure into sludge and filtrate (S303). The filter unit may include a plurality of filter plates arranged at predetermined intervals. Sludge may accumulate between the plurality of filter plates, and the filtrate may pass through the plurality of filter plates and separate from the sludge. The filtrate may be transferred to the secondary treatment unit 207, and the sludge may be transferred to the sludge collection unit 106.

The secondary processing unit 207 may perform secondary processing by mixing the transferred filtrate and electrolytic sterilization water (S305). In the secondary treatment unit 207, secondary treatment can be performed by adding and mixing electrolytic sterilization water in the same state as the filtrate, that is, in the liquid state, to the filtrate. Accordingly, the odor of the filtrate can be effectively reduced, and further, sterilization and disinfection treatment of the filtrate can be performed together. Here, the electrolytic sterilizing water used for the secondary treatment may be supplied by the electrolytic sterilizing water supply unit 109.

The sludge accumulated and collected by the filter unit 203 may be transferred to the sludge collection unit 106. The sludge transferred to the sludge collection unit 106 is a solid form and may be subjected to an additional treatment process suitable for this, or may be resourced by itself. Detailed descriptions related to this are well-known techniques to those skilled in the art, and thus descriptions thereof will be omitted.

Meanwhile, in the detailed description of the present disclosure, specific embodiments have been described. However, various modifications are possible without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited to the described embodiments, but should be determined not only by the scope of the claims described below, but also by the scope and equivalents of the claims.

In addition, the embodiments disclosed in the present specification and drawings merely describe the contents of the present invention and provide specific examples to help understanding, and are not intended to limit the scope of the present invention. Therefore, the scope of the present invention should be interpreted as including all the modified or modified forms derived on the basis of the technical spirit of the present invention in addition to the embodiments disclosed herein.

100: livestock manure processing device
101: livestock manure supply
102: primary processing unit
103: filter unit
104: filter plate
105: secondary processing unit
106: sludge collection unit
107: Dehydration aid supply unit
108: chlorine gas supply
109: electrolytic sterilization water supply unit
110: storage unit
201: first transfer unit
202: second transfer unit
203: third transfer unit
204: fourth transfer unit
205: fifth transfer unit
206: sixth transfer unit

Claims (8)

Chlorine gas and a dehydration aid are supplied to a primary treatment unit to which livestock manure is delivered, whereby primary treatment of livestock manure is performed;
A step in which the primary treated livestock manure is filtered by a filter unit and separated into sludge and filtrate; And
The electrolytic sterilization water is supplied to the separated filtrate from the electrolytic sterilization water supply unit, the separated filtrate and the electrolytic sterilization water are mixed in a secondary processing unit, and a second treatment is performed on the filtrate.
The step in which the primary processing is performed,
The step of generating the chlorine gas is volatilized by the electrolytic sterilization water,
The electrolysis is performed in a step in which the primary treatment occurs before the step of separating into the sludge and the filtrate, and in the step in which the secondary treatment occurs after the step of separating into the sludge and the filtrate, respectively. Processing the livestock manure and the filtrate using sterile water,
How to treat livestock manure.
According to claim 1,
The step in which the primary processing is performed,
Further comprising the step of performing the primary treatment by mixing the chlorine gas and the dehydration aid to the livestock manure,
How to treat livestock manure.
According to claim 1,
The step of separating the sludge and the filtrate is
The separated filtrate is transferred to a secondary treatment unit for performing secondary treatment, and the separated sludge is transferred to a sludge collection unit,
How to treat livestock manure.
According to claim 3,
The step of transferring the separated sludge to the sludge collection unit,
When the weight of the separated sludge is measured, and the measured weight is greater than or equal to a predetermined value, the step of transferring the separated sludge to the sludge collection unit,
How to treat livestock manure.
A primary treatment unit for performing primary treatment by mixing chlorine gas and a dehydration aid with livestock manure;
A filter unit connected to the primary processing unit and filtering the primary treated livestock manure received from the primary processing unit to separate into sludge and filtrate;
A secondary treatment unit connected to the filter unit and performing secondary treatment by mixing electrolytic sterilization water with the separated filtrate received from the filter unit; And
It includes a chlorine gas supply for volatilizing the electrolytic sterilization water to generate the chlorine gas,
The primary processing unit for performing the primary treatment generated before separation into the sludge and the filtrate, and the secondary processing unit for performing the secondary treatment generated after separation into the sludge and the filtrate In each of the treatment of the livestock manure and the filtrate using the electrolytic sterilization water,
Livestock manure processing equipment.
The method of claim 5,
The primary processing unit receives the generated chlorine gas from the chlorine gas supply unit,
Livestock manure processing equipment.
The method of claim 5,
A storage unit that stores the electrolytic sterilized water at a predetermined ratio or less of the total capacity, and volatilizes at least a portion of the stored electrolytic sterilized water to generate the chlorine gas;
A chlorine gas supply unit connected to an upper portion of the storage unit and supplying the chlorine gas generated in the storage unit to the primary processing unit; And
It is connected to the lower portion of the storage unit, further comprising an electrolytic sterilization water supply unit for supplying the electrolytic sterilization water that is not volatilized in the storage unit to the secondary treatment unit,
Livestock manure processing equipment.
The method of claim 5,
The filter unit includes a plurality of filter plates arranged at predetermined intervals,
The sludge accumulates in the predetermined gap portion of the plurality of filter plates,
Livestock manure processing equipment.

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