KR20190016426A - Deodorizing device cleaning water purification system of closed type compost fermenter - Google Patents

Abstract

The present invention provides a deodorizing device cleaning water purification system of a closed type compost fermenter, which can purify cleaning water of a wet type cleaning tower applied to a closed type compost fermenter to normally maintain a function of the cleaning tower, eradicate pathogenic bacteria by strong sterilization power of ozone, remarkably enhance deodorizing efficiency, and efficiently purify and manage the cleaning water which is highly concentrated wastewater coming from the wet type cleaning tower. According to the present invention, the deodorizing device cleaning water purification system of a closed type compost fermenter comprises: the compost fermenter receiving air from an air supply blower and stirring livestock excreta in a fermentation tank, in which the livestock excreta is stored, to make compost; the wet type cleaning tower spraying the cleaning water to discharge gas flowing in from the compost fermenter in order to perform cleaning and deodorizing; and a wastewater cleaning tank receiving the cleaning water overflown from the wet type cleaning tower, spraying the air supplied from the air supply blower to the cleaning water through an aeration nozzle to purify and filter the cleaning water, and supplying the filtered water to the wet type cleaning tower as supplement water of the cleaning water.

Description

[0001] The present invention relates to a deodorizing device cleaning water purification system for a closed compost fermenter,

The present invention relates to a closed type compost fermenter, and more particularly, to a closed type compost fermenter which can improve deodorization performance of a wet type cleaning tower applied to a closed type compost fermenter and effectively purify and manage cleansing water as a high concentration wastewater To a deodorizing apparatus cleaning water purification system.

Livestock manure, which is the main raw material for the production of organic fertilizer, has been treated in farmland spraying, marine discharge and livestock manure composting facilities. However, due to environmental pollution and livestock infectious disease route, . Therefore, the farmers are trying various methods for disposal of livestock manure. Among them, the closed compost fermenter which is easy to manage with low capacity and takes a small amount of installation area because of short composting period, is preferred by farmers.

The compost fermenter is classified into a closed type cylindrical stirring fermenter (Patent Registration No. 10-1582908) and an open type stirring fermenter (Patent Registration No. 10-819778, No. 10-1542884). The closed compost fermenter is a small- Is used mainly for composting livestock manure, and open stirrer fermenter is used in large farmhouse, livestock manure collecting plant and specialized compost factory.

In the case of closed compost fermenter, it is easy to collect odor, but in the composting process, a high concentration of odor, a large amount of dust and water vapor are generated, so an additional pollution prevention facility should be installed. It can not be applied because the operation condition is not maintained by the moisture, and the neutralization reaction by the chemical is difficult to apply in general farmhouses.

In order to remove bad odor, dust and water vapor, the wet type cleaning tower is most widely used. However, since the cleaning water is rapidly contaminated by the high concentration organic dust and the like, the washing water is frequently exchanged The deodorizing effect is reduced and the deodorizing function is lost. In addition, the washing water continues to increase due to the inflow and condensation of water vapor (when 5 tons of livestock manure is treated, 5 tons of condensed water is generated) Since the wastewater must be discharged after the treatment process, farms without wastewater treatment facilities are burdened because they have to be outsourced.

In addition, since livestock manure is a risk factor for pathogenic bacteria, pathogenic bacterium death is one of the main objectives of composting. The discharged compost is passed through distribution process due to the death of pathogenic bacteria in the composting process. Composting, however, Sludge), so that the pathogenic bacteria present in the captured gas phase are discharged to the air through the washing tower, mixed with the washing water and discharged to the water system, or pathogenic bacteria can move together with the washing water in the waste water treatment There is a problem that it has a risk factor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a method and apparatus for purifying cleansing water of a wet type cleaning tower applied to a closed type compost fermenter to normally maintain the function of a cleaning tower, A deodorizing apparatus for deodorizing a deodorizing apparatus for deodorizing a deodorizing apparatus for deodorizing a deodorizing apparatus of a compost fermenter, the system comprising:

A deodorizing apparatus for a deodorizing apparatus for a closed type compost fermenter according to the present invention includes: a compost fermenter for producing compost by supplying air from an air blower into a fermenter containing livestock manure and stirring the resultant; A wet scrubbing tower that cleans and deodorizes the effluent gas introduced from the compost fermenter by spraying cleansing water; And a septic tank for supplying the overflowed cleansing water from the wet scrubbing tower and spraying the air supplied from the air blower to the cleansing water through an aeration nozzle and purifying the filtered water to supply it to the cleansing water replenishing water of the wet scrubbing tower .

Preferably, the wet scrubbing tower comprises a cleaning tower having a cylindrical housing and an upper portion formed with a discharge port for discharging the deodorized exhaust gas; A first washing water storage tank in which washing water is stored in a lower portion of the washing tower; A filler positioned above the first cleansing water reservoir and spaced apart from the cleansing water and filled with a predetermined thickness; A demister that is spaced apart from the top of the filler and filled to a predetermined thickness; And a cleansing water spray nozzle for spraying cleansing water pumped by a cleansing water circulation pump to a space formed between the filling material and the demister, and an exhaust gas exhausted from the composting fermenter at the outside of the cleansing tower And a deodorizing fan for sucking and discharging the deodorant to the lower part of the filling material inside the wet scrubbing tower.

Preferably, the cleaning water stored in the first rinsing water storage tank located below the wet rinsing tower is supplied with radical water to supply and clean the rinsing water to purify and deodorize the rinsing water. The purification treatment apparatus includes an ozone generator A pump, and a bubble amplifier are sequentially installed.

Preferably, a second washing water storage tank in which washing water is stored is further provided on an outer side surface of the first washing water storage tank located below the cylindrical washing tower of the wet washing tower, and the first and second washing water storage tanks In the bubble amplifier, the ozone supplied from the ozone dissolution pump is formed into a finer bubble to be sprayed in the circumferential direction into the first rinse water storage tank.

Preferably, an aeration tank and a filtration tank are provided in the inside of the septic tank, and an aeration pipe overflowed from the wet cleaning tower is supplied to the aeration tank from above and an aeration pipe is provided therebelow, And the filtration tank is filled with filter medium to filter the aerated cleansing water. The filtered cleansing water is pumped by the cleansing water supply pump and supplied to the cleansing water replenishment water by the cleansing water supply pump.

Preferably, the washing water circulating pump pumps the washing water stored in the second washing water storage tank to spray the filling material inside the washing tower through the washing water spray nozzle, and a washing water circulating pump And a pipe for sucking the ozone in the space in the bubble amplifier.

The deodorizing device cleaning water purification system of the closed type compost fermenter according to the present invention has a role of decomposing organic matter in the washing water by the strong oxidizing action of the OH radical water dissolved in ozone supplied to the washing tower to purify the washing water, The anion gas reacts with the odor substance to greatly improve the deodorization effect. The strong sterilizing power by ozone can eradicate the pathogenic bacteria which can occur in the animal manure, and can safely discharge it without causing air and water pollution. Water can be recycled as disinfection and cleaning water because it is excellent in disinfection effect and can be reused as a makeup water of a wet cleaning tower, thus saving water use. In addition, when composting livestock manure using a closed type compost fermenter in a farmhouse, it is possible not only to solve the odor problem, but also to solve the problem of the wastewater treatment in the wet washing tower and to prevent the discharge of pathogenic bacteria It is possible to operate the livestock manure composting facility stably.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a purification system of the present invention. FIG.
2 is a view showing a direction in which bubbles are injected into the cleansing water storage tank in the bubble amplifier.
Fig. 3 is a photograph of an example of various shapes of filling materials.
Fig. 4 is a photograph of a shape in which the packing is contaminated by dust clogging.

The most significant technical feature of the deodorizing apparatus for the closed compost fermenter according to the present invention is that it cleanses and manages the washing water which is a high concentration wastewater discharged from the wet washing tower and can generate the ozone- Which is the biggest problem in operating a closed type compost fermenter, by solving the problems of air and water pollution.

Since compost is supplied with oxygen by the supply of air blown in the fermentation process (decomposition of organic matter), odorous gas is generated in decomposition process of carbon dioxide and organic matter due to metabolic action of aerobic microorganisms, and a large amount of water is generated, When a wet scrubbing tower is used as a preventive facility to prevent these gases from being released into the atmosphere, pollutants contained in the gas are dissolved in the washing water or removed by absorption and adsorption As shown in FIG. 4, when the filling material of the cleaning tower is severely contaminated by the fixing of the organic material and the function of the cleaning tower is lost, the entire amount of the cleaning agent must be changed. Since the pollutants removed from the gas are accumulated in the washing water, the performance of the wet washing tower is maintained by replacing the washing water before reaching the contamination limit. Since the washing water to be replaced is a high concentration wastewater, do.

The cleaning water purification system according to the present invention relates to a technology for effectively treating and managing cleaning water of a wet cleaning tower applied to a closed type compost fermenter, comprising a compost fermenter (10) for making compost, A cleaning tower 20, and a wastewater purification tank 30 for purifying and filtering the washing water to be used as washing water replenishing water and house washing water.

The compost fermenter 10 is a facility for producing compost by stirring air while supplying air into the fermentation tank 11 in which livestock manure is stored. The compost fermenter 10 includes a blade 13 around a rotary shaft 12 installed vertically along the center of the fermentation tank 11, The material inside the fermentation tank 11 is agitated while being rotated, and the supply air blower 14 is provided to supply air (oxygen) necessary for fermentation. Such a fermenter is widely used, and since the compost fermenter 10 itself is not a structural feature in the present invention, a detailed description thereof will be omitted.

The wet scrubbing tower is configured to spray cleaning water to the exhaust gas flowing from the compost fermenter 10 to wash and deodorize the cleaning gas. The cleaning tower 21 comprises a housing 21, a filler 213, A cleaning water injection nozzle 214 for spraying washing water is provided at the upper part of the filling material 213 and a washing water storage tank for storing washing water is provided at the lower part of the washing tower 21 Respectively. The washing water storage tank may be divided into first and second washing water storage tanks 211 and 211 'and may be provided separately from the outer side surface of the first washing water storage tank 211 located below the cylindrical housing of the washing tower 21 The lower part of the partition wall partitioning the first and second rinsing water storage tanks 211 and 211 'is configured to communicate with each other and the rinsing tower 21 is connected to the bubble amplifier 211' It is preferable that the micro bubble injected from the nozzle 24 is formed into a cylindrical shape so as to be able to turn.

The cleaning tower 21 has a cylindrical shape as a housing, and an exhaust port 212 for discharging the exhausted exhaust gas is formed at an upper portion of the housing. A first washing water storage tank 211 in which washing water is stored is located below the washing tower 21 and a filling material (Hereinafter referred to as a "filler") 213 and a demister 215 are sequentially filled with a predetermined thickness at a predetermined interval, and a space formed between the filler 213 and the demister 215 is filled with a washing water cycle And a cleaning water injection nozzle 214 for spraying the cleaning water pumped by the pump 25 onto the filler 213 is provided.

The filler material 213 is made of polyethylene (PE) or polypropylene (PP) in various shapes, and effectively separates the gas and water while passing the trapped steam and gas. The demister 215 is used to extend the residence time so that the air (exhaust gas) can not escape from the cleaning tower 21 quickly. The demister 215 is made of fine wire or plastic wire, And is exhausted to the discharge port 212 before being exhausted.

The filler 213 may be filled with only one layer, but it may be filled with two layers at a predetermined interval. When the filler 213 is filled with two layers, the demister 215 must be positioned on the filler located at the top. A cleaning water injection nozzle 214 is provided on the upper portion of the filler 213 to spray clean water of a strong cleansing power OH radical pumped by the cleaning water circulation pump 25 onto the filler 213 to be supplied to the cleaning tower 21 And then falls into the first rinsing water storage tank 211. [0064]

A deodorizing fan 16 is installed outside the cleaning tower 21. One end of the deodorizing fan 16 is connected to a deodorizing duct 15 connected to the outlet 212 of the compost- The exhaust gas in the fermentation tank 11 is sucked and blown into the washing tower 21 so that the exhaust gas sucked into the washing tower 21 passes through the filler 213, So that the odorous substance contained in the exhaust gas is dissolved in the water, the heat and dust are absorbed in the water, and the gas from which the pollutant is removed is discharged to the atmosphere through the outlet 212 in the upper part.

The washing water is stored in the first and second washing water storage tanks 211 and 211 'at the lower portion of the washing tower and is pumped by the washing water circulating pump 25 installed outside the second washing water storage tank 211' Water is sprayed through the washing water injection nozzle 214 installed in the washing tower and the contaminated gaseous contaminant discharged from the fermentation tank 11 is removed and dropped into the first washing water storage tank 211. In this process, The water level of the washing tower 21 is increased, and the washing water overflows. When the degree of contamination is gradually increased, the odor removing performance is deteriorated. Therefore, the washing water should be periodically exchanged. At this time, since the overflow and the replaced washing water are highly concentrated wastewater, the wastewater should be treated at a level below the water quality standards discharged from the wastewater treatment plant and then discharged.

A purifier for purifying and deodorizing the washing water stored in the first washing water storage tank 211 located at the lower part of the washing tower 21 by supplying radical water to the ozonizer 22, An ozone dissolution pump 23 and a bubble amplifier 24 are sequentially installed. The structure of the ozone generator 22, the ozone dissolution pump 23, and the bubble amplifier 24 is not a characteristic feature of the present invention but is sold on the market, so a detailed description of the structure will be omitted.

The ozone generated in the ozone generator 22 is connected to the suction port of the ozone dissolution pump 23 as a pipe to be crushed into a small gas inside the ozone dissolution pump 23 together with the washing water flowing in the second washing water storage tank 211 ' The bubble amplifier 24 generates more fine bubbles and supplies the bubbles to the inside of the first cleansing water reservoir 211. The micro bubble water discharged from the bubble amplifier 24 flows into the first cleansing water reservoir 211, So that the time for which the bubble stays in the washing water tank can be drastically increased, thereby remarkably increasing the dissolution rate of the bubble.

At this time, undifferentiated ozone that has not yet been decomposed is dissolved in contact with washing water at the top of the washing tower, and reacts with unremoved odor to remove odor. In addition, unconfined ozone is retained in the upper space of the second elongated water storage tank 211 '. The ozone is sucked from the ozone dissolution pump 23 by the bubble amplifier 24, And the ozone is crushed together with ozone and supplied to the first cleansing water storage tank 211. Thus, the upper space of the second cleansing water storage tank 211 'is formed with a negative pressure so that the ozone in the upper part of the second cleansing water storage tank 211' When you come out or open the lid, you will not smell ozone.

The ozone-dissolving radical water decomposes organic and odorous components with strong oxidizing power and cleans the washing water, so that the function of the washing water can be maintained. Since the washing water reduced by the ozone dissolving radical water is used for deodorization, , And the maintenance cost is lower than that of the chemical reaction equipment using chemicals. The compost after fermentation in the compost fermenter is completely sterilized and discharged because the pathogenic bacterium is extinguished during the composting process but the pathogenic bacteria of the livestock manure being injected is included in the exhaust gas but it is washed by strong alkaline ozone radical water.

One of the characteristic features of the present invention is that a wastewater treatment tank 30 is provided for cleaning wastewater purification. The wastewater treatment tank 30 is configured to allow the wastewater containing odor components and contaminants remaining in the wet cleaning tower to stay in the purification tank And the washing water is treated to a level that can reuse or discharge the washing water. The washing water overflowed from the washing tower 21 is supplied to the septic tank 30 and the air supplied from the air supply blower 14 is sprayed to the washing water through the aeration nozzle 312 and purified, The washing water replenishing water and the barn cleaning water. An aeration tank 31 and a filtration tank 32 are basically provided in the wastewater purification tank 30 and may further include a denitrification tank for removing nitrogen contained in the washing water. .

The aeration tank 31 is supplied with the washing water overflowed from the wet washing tower through the piping from the upper part of the aeration tank 31 and the aeration pipe 311 is provided at the lower part to supply the air supplied from the air supply blower 14 to the aeration pipe 311 by an aeration nozzle 312 formed at equally spaced intervals. A separate blower is not necessary because the piping is connected to the aeration pipe 311 through the air supply blower 14 for supplying air to the fermentation tank 11 and the aeration pipe 11 A relief valve (not shown) is installed in a pipe connecting the air supply blower 14 and the aeration tank 31 so that the pressure of air supplied to the aeration tank 31 is constant It is desirable to keep it.

The filtration tank 32 is packed with objects such as various shapes of plastic, demister, and filter material, and functions to filter and self-purify the cleansing water aeration in the aeration tank 31. The filtered washing water is pumped by the washing water supply pump 33 and supplied to the washing tower 21 as wash water for replenishing water or cleaning water or low concentration wastewater. . ≪ / RTI > The cleansing water supply pump 33 may be provided outside the septic tank 30 or may be installed in the septic tank 30 using an underwater pump.

A denitrification tank may be further provided between the aeration tank 31 and the filtration tank 32 to remove nitrogen in an anaerobic state. Reference numeral 40 denotes a control panel for controlling the entire system.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention. Various modifications and variations will be possible without departing from the spirit of the invention. Therefore, the scope of the present invention should be construed as being covered by the scope of the appended claims, and technical scope within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

10: compost fermenter 11: fermenter
12: rotation shaft 13: blade
14: air blower 15: deodorizing duct
16: Deodorizing fan
20: wet cleaning tower 21: cleaning tower
211, 211 ': first and second rinsing water storage tanks 212:
213: filling material 214: washing water spray nozzle
215: Demister
22: ozone generator 23: ozone dissolution pump
24: bubble amplifier 25: rinse water circulation pump
30: septic tank 31: aeration tank
311: Aeration piping 312: Aeration nozzle
32: Filtration tank 33: Submerged pump
40: Control panel

Claims (6)

A compost fermenter for producing compost by supplying air from an air blower into a fermenter containing livestock manure and stirring the mixture;
A wet scrubbing tower that cleans and deodorizes the effluent gas introduced from the compost fermenter by spraying cleansing water;
A wastewater purification tank for supplying an overflowing wash water from the wet scrubbing tower and spraying the air supplied from the air blower to the washing water through an aeration nozzle and purifying the filtered air to supply the washing water to the washing water replenishing water of the wet washing tower;
Wherein the deodorizing device is disposed in the compartment of the compost fermenter.
The washing machine according to claim 1,
A cleaning tower having a cylindrical housing and an upper portion formed with a discharge port for discharging the deodorized exhaust gas;
A first washing water storage tank in which washing water is stored in a lower portion of the washing tower;
A filler positioned above the first cleansing water reservoir and spaced apart from the cleansing water and filled with a predetermined thickness;
A demister that is spaced apart from the top of the filler and filled to a predetermined thickness;
A cleansing water spray nozzle for spraying cleansing water pumped by a cleansing water circulation pump to a space formed between the filler and the demister;
Respectively,
And a deodorizing fan for sucking the exhaust gas exhausted from the composting fermenter and spraying the exhaust gas to the lower part of the filling material inside the wet scrubbing tower is further provided on the outside of the washing tower. Cleaning water purification system.
The method according to claim 1,
A cleaning device for generating and supplying radical water to the washing water stored in the first washing water storage tank located below the wet washing tower to purify and deodorize the washing water,
Wherein the purifying apparatus comprises an ozone generator, an ozone dissolving pump, and a bubble amplifier, which are sequentially installed in the deodorizing apparatus.
The method of claim 3,
A second washing water storage tank in which washing water is stored is installed at an outer side surface of the first washing water storage tank located below the cylindrical washing tower of the wet washing tower,
The lower part of the partition wall partitioning the first and second washing water storage tanks is configured to communicate with each other,
Wherein the ozone supplied from the ozone dissolution pump is formed into a finer bubble in the bubble amplifier so that the ozone is injected into the first washing water storage tank in a circumferential direction to supply the ozone to the deodorizing apparatus.
The method according to claim 1,
Wherein an aeration tank and a filtration tank are included in the septic tank,
In the aeration tank, an overflowing washing water is supplied from an upper portion of the wet washing tower, and an aeration pipe is provided in a lower portion thereof. The air supplied from the air supply blower is sprayed to the washing water through the aeration nozzle,
The filtration tank is filled with a filter medium to filter the aeration water,
And the filtered washing water is pumped by the washing water feed pump and supplied to the washing tower as the washing water replenishing water.
5. The method of claim 4,
A washing water circulation pump for pumping the washing water stored in the second washing water storage tank and spraying the filling material inside the washing tower through a washing water spray nozzle,
And a pipe for sucking the ozone in the space above the washing water of the second washing water storage tank by the bubble amplifier is further installed in the deodorizing device.

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