KR20060128578A - Excretions treatment method and apparatus thereof - Google Patents

Abstract

A method and an apparatus for treating the excretion of livestock are provided to add the desulfurizing plaster into ammonia, thereby fixing the ammonia. A solid material injection hole(272) is formed at an end of the circumferential wall of a dehydration apparatus body(271). A solid material discharge member(273) is formed at the other end of the circumferential wall of the dehydration apparatus body. A moisture discharge hole(274) is formed at the lower middle portion end of the circumferential wall of the dehydration apparatus body. A dehydration screw(280) is rotatably combined to the inside of the dehydration apparatus body. A rotation shaft(281) of the dehydration screw is connected with a driving motor.

Description

Livestock Manure Treatment Method and Apparatus {EXCRETIONS TREATMENT METHOD AND APPARATUS THEREOF}

1 to 9 is a view for explaining the livestock waste treatment method and apparatus according to the present invention,

1 is a block diagram of a livestock waste treatment apparatus.

Figure 2 is a perspective view of the solid-liquid separator.

Figure 3 is a longitudinal cross-sectional view showing the configuration of the solids dehydration and pellet production apparatus.

Figure 4 is a right side view showing the configuration of the solids dehydration and pellet production apparatus.

Figure 5 is a longitudinal sectional view showing another form of the solids dehydration and pellet production apparatus.

Figure 6 is a longitudinal sectional view showing the configuration of the water purification treatment apparatus.

7 is a perspective view of the odor removal device of the slurry pit.

8 is a perspective view of a buoyancy body.

9 is a process chart of the livestock waste treatment method.

<Description of the symbols for the main parts of the drawings>

100: solid-liquid separation device 101: separation tank

102: storage unit 103: overflow wear

105: inflow path 110: vibrating conveyor belt screen

111 drive unit 112 vibrator

113: solids input hopper 114: transfer path

200: solids dewatering and pellet manufacturing apparatus 201: dewatering extrusion apparatus main body

202: solids inlet 210: extrusion screw

211,212: rotating shaft 220: drive motor

230: pellet molding plate 231: extrusion hole

232: cutting blade 250: porous type dewatering cylinder

251: opening 260,261: bearing

270: advanced dewatering device 271: dewatering device body

272: solids inlet 273: solids outlet

274: water outlet 280: dewatering screw

281,282: rotating shaft 300: water purification treatment device

301: flocculation reactor 302: water inlet

303: flocculant inlet 304: gas inlet

310: stirrer 320: drive part

330: sedimentation tank 331: communication tube

332,333: discharge pipe 334: bulkhead

400: odor removal device of the slurry pit 410: slurry pit

420: spray tube 421: nozzle

430: buoyant body 431,435: buoy

432: middle support bar 433: holder

434: auxiliary support rod

The present invention is excessive to livestock manure treatment method and apparatus, using a desulphurized gypsum as a waste system by combining a vibrating screen, a screen compressor, a water purification reactor, a transfer pump, etc. to a device for separating manure and urine from the mixed manure The ammonia, which is a odor component, is immobilized to make a stable nitrogen fertilizer to reduce odor, and the livestock manure is solid-liquid separated, and the solid animal waste is made into pellets, and the liquid urine and livestock wastewater are desulfurized gypsum, and the ammonia is fixed. It relates to a livestock waste treatment method and apparatus for recycling the treated water by water purification through.

Generally, slurry feet are provided in livestock houses to easily manage livestock manure from large livestock farms with a small manpower. The livestock manure slurry contains a large amount of water, causing a problem of high cost in processing to utilize the same, and causing a bad smell due to ammonia and the like.

Currently, the livestock manure slurry treatment method has a large number of livestock farms equipped with composting facilities for fermentation, liquefaction facilities and purification facilities are installed, and some farmhouses are disposed of in public treatment facilities or ocean dumping by consignment treatment. Depends.

Composting facilities are, as a rule, zero-emissions facilities, which must be converted into solid compost by evaporating the water contained in the slurry. This requires a large site and economic burden due to the high cost of technical support and operation for mechanical equipment for water evaporation. In addition, deterioration of fertilizer quality due to nitrogen loss due to degassing of ammonia and odor generation still remain problems. In addition, the method of using fermented phase by introducing subsidiary materials such as sawdust and rice husk to remove moisture causes high cost for the use of excessive subsidiary materials due to excessive moisture, and the compost is not composted due to excessive C / N rate due to subsidiary materials. Due to deterioration in quality and low efficiency of the housing process due to seasonal factors, the current conditions of the livestock industry have a clear limitation.

Liquefaction facilities should be equipped with large liquid fertilizer reservoirs for housing for a sufficient period of time to ensure liquid fertilizer quality by anaerobic or aerobic fermentation of liquid fertilizer as a means to treat liquid manure. However, due to the difference in technical and economic conditions, the liquid fertilizer quality is non-uniform and a separate expensive equipment for spraying the liquid fertilizer, long distance transport difficult, microbial additives must be introduced, it is difficult to commercialize. In addition, there is a problem that the odor occurs during the housing process and spraying and secondary environmental pollution such as groundwater contamination.

The purification facility consists of a sewage water purification process, a pretreatment process for separating solids from slurry, a biological treatment including aeration process, a main treatment process including precipitation, and a process for treating solids. Due to the complexity and expertise of each process and the expertise required to operate the facility, the installed facilities are not operating properly. The livestock manure slurry purification method uses activated sludge method, but due to the high concentration of suspended solids, organic matter, nitrogen and salts, it requires hydraulic treatment for a long time, and it is difficult to operate normally due to bulking and foaming. have. In addition, due to the characteristics of livestock manure, the content of nitrogen and phosphorus is relatively higher than that of organic carbon, so if nitrogen or phosphorus is not added, excessive amounts of nitrogen and phosphorus in the treated water may cause eutrophication in public waters. Can be.

Public treatment facilities have the same problem, except that they operate on a larger scale than those used by small-scale livestock farmers. In addition, marine dumping, which simply dumps livestock manure collected on the sea due to low cost, is not possible to carry out continuity due to the strengthening of the legislation on the Marine Dumping Prevention Act.

Therefore, there is a demand for effective treatment of livestock manure and livestock wastewater in commercialized livestock farms.At the same time, the Ministry of Environment has recently implemented the Air Pollution Prevention Act on odors for solutions to fundamental problems such as odor occurrence. It is urgently requested.

The present invention has been made to solve the above problems, the object of the present invention is to solid-liquid separation in the form of mixed solids and liquids (including sewage sludge), including slurry of livestock manure and livestock wastewater generated To provide a livestock waste treatment method and apparatus that can facilitate the handling and management of solids and liquid (hereinafter referred to as 'water').

Another object of the present invention is to immobilize ammonia, which is a odor component contained in the water of high moisture content materials such as livestock manure slurry and sewage sludge, using desulfurized gypsum to increase the concentration of nitrogen fertilizers in solids, and water to be purified. It is to provide a livestock waste treatment method and apparatus therefor.

Another object of the present invention is to contribute to clean the house by spraying the water separated from the livestock manure and sewage sludge as water for cleaning the livestock house, etc., and contribute to the cleanliness of the livestock livestock manure, which can reduce the generation of odor of the livestock It is to provide a treatment method and an apparatus thereof.

Therefore, the object of the present invention is to improve the quality of fertilizers, remove odors, and recycle moisture by increasing the concentration of nitrogen fertilizers immobilized with aerobic ammonia in the organic fertilizer component of solids in livestock manure (sewage sludge). To establish an eco-friendly circulation treatment system, and at the same time to provide a livestock waste treatment method and apparatus that can recycle the desulfurized gypsum waste.

In order to achieve the above object, the livestock waste treatment method according to the present invention more specifically comprises a solid-liquid separation process of solid-liquid separation of solids and water through a solid-liquid separation process of a high water content such as livestock manure slurry or sewage sludge; Solids dehydration and pellet manufacturing process for dehydrating the solids to lower water content and pelletize; The water separated in the solid-liquid separation process and the water purification process is chemically reacted with carbon dioxide gas in the barn flue gas and sewage sludge digester gas in a coagulation tank to solidify ammonium sulfate and calcium carbonate, and to be contained in the desulfurized gypsum. Agglomerates of iron and aluminum components, which coagulate and react with water pollutants, transfer the treated water to a settling tank, and solidify aggregates of ammonium sulfate, calcium carbonate and other water purification processes immobilized by the ammonia flocculation process of the desulfurized gypsum. A water purification process for feeding back to the solid-liquid separation process for dehydration and pellet manufacture; The treated water separated in the water purifying process is sprayed through the nozzle of the spray tube at the top of the slurry pit to wash and dissolve ammonia degassed by water to remove the odor of the slurry pit (smell of the slurry pit) Removal process).

In addition, the livestock waste treatment apparatus according to the present invention is a solid-liquid separation device for separating the object to be treated with solids and water in the process of treating the material with high moisture content such as livestock manure slurry or sewage sludge, and the separated from the solid-liquid separator Solids dehydration and pellet manufacturing apparatus for dehydrating solids and forming pellets, and water purification equipment for purifying water separated in the solid-liquid separator and sedimenting and separating the aggregates by water purification process to recycle the aggregates to the first raw material inlet. And a odor removal device of the slurry pit which injects the treated water generated by the water purification treatment device to the slurry pit and removes the odor from the slurry pit.

The present invention improves the quality of nitrogen fertilizers by immobilizing ammonia contained in livestock manure or sewage sludge using desulfurized gypsum and ammonia contained in water which causes odors in this process is immobilized with ammonium sulfate. Water pollutant is a technology to purify water by removing the coagulation reaction with aluminum and iron contained in the desulfurized gypsum. And the ammonia odor generated from the slurry pits is removed by washing with water by spraying the treated water in the form of a spray. Moisture separated from the water is pelletized to facilitate transport and treatment, thereby increasing the utilization of the solids through improved convenience of the subsequent fertilizer process.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail as follows.

Figure 9 shows a process flow diagram of the livestock waste treatment method according to the present invention, as shown in the first, the livestock waste treatment method according to the present invention is a solid solution of a high water content such as livestock manure slurry or sewage sludge A solid-liquid separation process 500 for solid-liquid separation into solids and water through a separation process; Solids dehydration and pellet manufacturing process (510) for dehydrating the solids to lower water content and pelletize; The water separated in the solid-liquid separation process 500 and the solids dehydration and pellet manufacturing process 510 is chemically reacted with carbon dioxide gas of barn flue gas and sewage sludge digester gas in an agglomeration reactor to solidify ammonium sulfate and calcium carbonate, At the same time, the coagulant of iron and aluminum contained in the desulfurized gypsum coagulates with the water pollutant, and transfers the treated water to the settling tank. The ammonium sulfate, calcium carbonate, and aggregates immobilized by the deammonia process of the desulfurized gypsum. A water purification process (520) for introducing the solids into the dehydration and pellet manufacturing process; Deodorization process of the slurry pit to remove the odor of the slurry pit (530) by washing and dissolving the treated water separated in the water purification process (520) through the nozzle of the spray tube in the upper portion of the slurry pit to wash and dissolve ammonia, which is the odor molecule degassed It is configured to include.

The livestock manure treatment method according to the present invention is separated into solids and liquid from the livestock manure or sewage sludge in the form of slurry through a physical separation process using a mechanical device, the manure slurry introduced for this is a solid solution such as a vibrating screen It is to obtain solids by separating free water and bound water contained in slurry by introducing mechanical energy by using dehydration device and pellet manufacturing device equipped with separation device and extrusion screw. A pellet forming plate for forming into pellets is installed. The separated water is added with desulfurized gypsum to solidify the ammonia contained in the water with insoluble ammonium sulfate ((NH ₄ ) ₂ SO ₄ ) and partly with calcium carbonate (CaCO ₃ ) to absorb the plant. Switch to fertilizer. The required carbon dioxide (CO ₂ ) is introduced into the water treatment tank in the form of a stringing (striping) form using barn air or sewage sludge digester gas. At the same time, iron (Fe) and aluminum (Al) components among the remaining components contained in the desulfurized gypsum act as coagulants, and react with contaminants contained in water to coagulate and settle the water.

The reaction formula of ammonia and desulfurized gypsum is shown below.

CaSO ₄ + 2NH ₃ + CO ₂ + H ₂ O → CaCO ₃ + (NH ₄ ) ₂ SO ↓

1 to 9 is a view for explaining the livestock waste treatment method and apparatus according to the present invention, Figure 1 is a block diagram of a livestock waste treatment apparatus, Figure 2 is a perspective view of a solid-liquid separation device is shown 3 is a longitudinal sectional view showing the configuration of the solid dehydration and pellet production apparatus, Figure 4 is a right side view showing the configuration of the solid dehydration and pellet production apparatus, respectively, Figure 5 is another form of the solid dehydration and pellet manufacturing apparatus A longitudinal cross-sectional view is shown.

6 is a longitudinal sectional view showing the configuration of the water purification treatment device, a perspective view of the odor removal device of the slurry pit is shown in FIG. 7, and a perspective view of the buoyancy body is shown in FIG. 8.

As shown in the drawing, the livestock waste treatment apparatus according to the present invention is a solid-liquid separation device that separates solids and water when an object to be treated is introduced as an example in the process of treating a material with high moisture content such as livestock manure slurry or sewage sludge ( 100) and the solids dehydration and pellet manufacturing apparatus 200 for dewatering the solids and forming the pellets in a process of the solids separated from the solid-liquid separator 100, and in the solids-separation process and the solids process The separated water is treated with water to obtain a treated water and at the same time sedimentation by sedimentation by sedimentation in the water purification process, the water purification apparatus 300 for recycling to the first raw material inlet and the slurry pit to remove the odor from the slurry feet It is composed of a odor removing device 400.

The solid-liquid separation device 100 is the overflow tank 103 is formed on one side of the separation tank 101 through which the material to be treated, such as livestock manure sludge or sewage sludge, flows in through the inflow path 105. The storage unit 102 is formed to be divided into the water flow of the slurry flowing into the overflowware 103 is stored separately, and the vibration conveyor belt screen 110 is installed on one side of the separation tank 101.

In addition, the vibrating conveyor belt screen 110 is provided with a driving unit 111 for driving the conveyor belt and is provided with a vibrator 112 for vibrating the conveyor belt, and inputs the solids raised by the conveyor belt to the conveying path (114). Solid matter input hopper 113 for the purpose is provided.

In addition, the solid in the form of slurry remaining in the separation tank 101 is subjected to solid-liquid separation by the continuous vibrating conveyor belt screen 110 or treated by the vibrating screen 120.

The solid-liquid separator 100 is a solid-liquid separation of the livestock manure or sewage sludge in the form of slurry mixed with solids and water, respectively, the water is composed of free water and combined water.

On the other hand, the material to be treated, such as livestock manure sludge or sewage sludge, may be treated batchwise with a conventional vibrating screen.

The solid dewatering and pellet manufacturing apparatus 200 is to dehydrate the water remaining in the solid separated in the solid-liquid separator 100 using the extrusion screw 210 to form a pellet as shown in Figure 3 The extrusion screw 210 is rotatably coupled to the inside of the dewatering extruder main body 201 having one end of the main wall, and rotatable by a bearing 260 in the center of one end of the dewatering extruder main body 201. One side of the rotating shaft 211 of the extrusion screw 210 is protruded to the outside is connected to the drive motor 220, the other end of the dehydration extrusion apparatus main body 201 pellet molding formed with a plurality of extrusion holes 231 Plate 230 is coupled, the other side of the rotating shaft 212 of the extrusion screw 210 is coupled to the center of the pellet forming plate 230 via a bearing 261, the inside of the dewatering extruder main body 201 The opening 251 is in communication with the solid inlet 202 Is formed and a plurality of dewatering cylinders 250 formed with a plurality of dewatering holes 252 are coupled to the outside of the extrusion screw 210, the extrusion hole of the pellet forming plate 230 on the outer end of the other rotating shaft 212 The cutting blade 232 for cutting the extruded molded product, such as noodles of the solid extruded to 231, has a fixed configuration.

The porous dewatering cylinder 250 is formed in a stainless steel sheet to form a plurality of dehydration holes 252 and bent into a semi-cylindrical shape is bisected in the longitudinal direction to form a possible assembly, in addition to the stainless steel plate main wall You can also delete it in the form you need and glue the mesh onto it.

In addition, the porous dehydration cylinder 250 is configured to facilitate maintenance when the dehydration hole 252 is blocked.

The extrusion screw 210 of the solid material dewatering and pellet manufacturing apparatus 200 is configured to transfer the material to be processed into the solid inlet 202 while compressing it to the pellet forming plate 230 side.

For example, in order to compress and convey the material to be treated, the extrusion screw 210 has the same outer diameter from one end of the solid inlet 202 side to the other end of the pellet forming plate 230, so that the end of the spiral groove from one end to the other end thereof. The pitch is the same, and the depth of the spiral groove gradually becomes shallow, the pitch of the spiral groove gradually decreases from one end to the other end, and the pitch of the spiral groove gradually decreases from one end to the other end, Gradually shallower depths of grooves may be used. In addition, a shape in which the outer diameter of the extrusion screw 210 gradually increases from one end to the other end may be used.

The dewatering and pellet manufacturing apparatus 200 of the solid material may be further provided with a dehydration device 270 for firstly dehydrating the solid material to be introduced into the dehydration extruder main body 201 as shown in FIG. 5.

The dewatering device 270 has a solids inlet 272 is formed at one end of the main wall, and the other end of the main wall is formed with a solid outlet 273 through which the solid is extruded, and a water outlet 274 where water is discharged in the middle of the main wall. ), The dehydration screw 280 is rotatably coupled to the inside of the dehydrator main body 271, rotatably coupled by a bearing 260 to the center of one end of the dehydrator main body 271 protrudes outward One rotation shaft 281 of the dewatering screw 280 is connected to the drive motor 220, the other rotation shaft 282 of the dehydration screw 280 is at the center of the other end of the dehydrator main body 271 is a bearing 261 ) Is coupled through the dehydrator main body 201, the porous dewatering cylinder 250 having an opening 251 in communication with the solid inlet 202 is coupled to the outside of the dewatering screw 280 It is.

The water purification apparatus 300 is to collect water separated from the solid dehydration and pellet manufacturing apparatus 200 to fix ammonia contained in water and to purify water quality. An inlet 302, a coagulant inlet 303 for injecting a coagulant such as desulfurized gypsum, and a gas inlet 304 are provided, and water and desulfurized gypsum introduced into the coagulation reaction tank 301 are provided inside the coagulation reaction tank 301. Agitator 310 is provided to stir so that complete mixing occurs, and a driving unit 320 for rotating the agitator 310 is installed at the upper end of the coagulation reaction tank 301.

And the communication tube 331 is connected between the coagulation reaction tank 301 and the upper end of the main wall of the settling tank 330 provided on one side, the discharge pipe 332 is connected to one side of the main wall of the settling tank 330, the discharge pipe 333 to the lower end of the main wall ) Is provided, and a cascade 334 is provided in the middle of the settling tank 330.

The odor removal device 400 of the slurry pit is installed on the surface of the slurry pit 410 on which a scraper is installed, and a spray tube 420 to which a plurality of nozzles 421 are coupled, and the spray tube 420 ) Is configured as a buoyancy body 430 to support to rise above the water surface according to the height of the water surface.

The buoyancy body 430 is to maintain the upright with respect to the water by the center of gravity when it is lost to the center like a squirrel, spray tube 420 and the middle support rod 432 of the ball 431 The holder 433 to be connected is provided, and the sub-hole 435 is attached to the lower end of the auxiliary supporting rod 434 which is inclined to both sides at the lower portion of the holder 433.

Since the holder 433, the intermediate support rod 432, and both side support rods 434 are in direct contact with the slurry, they are manufactured by using a synthetic resin such as PE, PP, urethane, and a corrosion-resistant metal such as SUS, which are strong in corrosion and have a low specific gravity. do.

The secondary hollow plastic or styrofoam may be used.

Referring to the livestock manure treatment method and the operation of the apparatus according to the present invention as described above are as follows.

When the material to be treated, such as livestock manure sludge or sewage sludge, enters the separation tank 101 through the inflow path 105 of the solid-liquid separation device 100, free water is separated from the water contained in the material to be treated in the separation tank 101. Being separated into the storage portion 102 beyond the overflow wear 103 formed on the inner side of the. However, bound water can be separated only by inputting sufficient energy by external power.

And the solid in the form of slurry remaining in the separation tank 101 is separated into the solid by a continuous vibrating conveyor belt screen (110).

Moisture collected in the storage unit 102 is transferred to the water purification treatment unit 300 is linked to the treatment, and the separated solids are transferred to the dehydration and pellet manufacturing apparatus 200 for processing.

In such solid-liquid separation, the choice of continuous or batch type may vary depending on the nature of the manure, including moisture content and viscosity of the livestock manure, and the concentration of the solids.

Subsequently, the solid dewatering and pellet manufacturing apparatus 200 is transported while the injected treatment material is compressed by the rotation of the extrusion screw 210, and water desorption occurs in the transport section by the compression of the extrusion screw 210, and the direction of travel is performed. The solid compressed according to the extrusion is extruded like a noodle strand through the extrusion hole 231 of the pellet forming plate 230, the cutting blade 232 fixed to the outer end of the other rotating shaft 212 of the extrusion screw 210 The molded product which is extruded and discharged while rotating is cut into a constant size.

In the process of separating water by the extrusion screw 210, a compression force is generated while the material to be treated by the extrusion screw 210 is continuously generated, thereby separating the bonding water of the slurry.

As described above, the solid dewatering and pellet manufacturing apparatus 200 of FIG. 3 performs the solid-liquid separation and pellet molding in one step by adjusting the length of the extrusion screw 210. However, the dehydration and extruding apparatus is primarily dehydrated as shown in FIG. The solids dewatering and pellet manufacturing apparatus 200, which is further provided with a dehydrating apparatus 270 for feeding into the main body 201, performs solid-liquid separation at the front end and solid-liquid separation and pellet manufacturing at the rear end, in this case extrusion screw 210 And the dewatering screw 280 are respectively driven by a separate electric motor.

Pelletizing solids makes it easy to dry, easy to handle and transport and storage, and creates air gaps during combustion for good ventilation and good combustion. Is processed from

Subsequently, the water purification treatment apparatus 300 of FIG. 6 collects the water separated from the solid-liquid separator 100 and the water separated from the solid dewatering and pellet manufacturing apparatus 200 to fix the ammonia contained in the water. In order to purify the high water quality, the required carbon dioxide gas is mixed with the barn flue gas (sewage sludge digester gas) to induce a chemical reaction. Through chemical reaction, ammonium sulfate ((NH ₄ ) ₂ SO ₄ ) and calcium carbonate (CaCO ₃ ) are solidified and the iron and aluminum components in the desulfurized gypsum injected at the same time are coagulants and coagulate with water pollutants. They are transferred to the settling tank 330 and settled to be separated from the treated water.

The partition wall 334 installed in the inner middle of the settling tank 330 extends the flow distance of the flowing water to induce contaminants combined with the coagulant to grab by gravity.

The purified water is discharged through the discharge pipe 332 and recycled to reduce odor generation.

At this time, the ammonium sulfate, calcium carbonate and aggregates precipitated in the precipitation tank 330 are transferred to the first raw material inflow path 105 of the present invention, which is mixed with the livestock manure slurry introduced as an example, and is separated into solids and processed.

Subsequently, the odor removal device 400 of the slurry pit is used as a cleaning water for the barn to reduce the odor generated in the barn by recycling the treated water, and sprays the treated water produced in the water purification apparatus 300. The spray pipe 420 with a plurality of nozzles 421 coupled to the spray pipe 420 by supplying the pump to the spray pipe 420 installed in the water surface of the slurry pit 410 of the odor removal device 400 of the slurry pit. Spray it evenly in the form of a spray into the surroundings.

By spraying the treated water into the spray tube 420, ammonia, which is a malodorous molecule degassed, is dissolved by washing with water, and the water containing the dissolved malodorous molecule is treated as the immobilization process of degassed ammonia in the water purification process. Handle in conjunction.

In this way, the odor removal device 400 of the slurry pit attaches a plurality of nozzles 421 to the spray tube 420 to widen the washing surface in order to effectively wash out the degassed ammonia, and the spray tube 420. In order to spray the treated water evenly in the form of a spray by pumping water with a spray pump, it should be noted that the nozzle 421 attached to the spray tube 420 should not be blocked by impurities.

In addition, the spray tube 420 is installed in the form floating on the water surface using the buoyancy body 430 at the bottom of the truss of the slurry pit 410, the spray tube 420 can be spaced apart from the slurry and the upper support hole The auxiliary supporting rods 434 formed to be inclined to both sides of the 432 are centered again when the sub-ball 431 attached to the intermediate supporting rods 432 falls out of balance and falls to maintain the spray tube 420 stably.

 Such a odor removal device 400 of the slurry pit can be easily installed without disturbing the scraper operation of the slurry pit 410.

Livestock manure treatment method and apparatus according to the present invention as described above for the treatment of sewage sludge or livestock manure, which is a high moisture content material, and the solid-liquid separation of the material to be treated in the treatment process due to the high moisture content Separation through the process, there is an advantage that can remove the ammonia and water pollutants in the odor components contained in the water by using the desulfurized gypsum in the immobilization and water purification process and recycle the treated water. In addition, the solids of livestock manure are dehydrated to lower the moisture content and pelletize to increase the convenience of transfer to the associated process, and the fertilizer quality is improved due to the addition of fertilizer components such as ammonium sulfate and calcium carbonate, which are immobilized in the deammonia process. Pelletized fixtures have an economical advantage because the water content is reduced, reducing the use of subsidiary materials such as sawdust and rice hulls in the fertilizer process. In addition, the use of liquid fertilizers can be applied to adjacent residential areas due to the reduction of degassing components, and it is possible to eliminate the difficulty of continuously obtaining the spraying sites by reducing the absolute capacity through the dehydration process, and to apply fertilizer regardless of land conditions or weather conditions. There is an advantage. In addition, there is an advantage to improve the environment of the house and reduce the quality of environmental hygiene by reducing the odor due to the application of livestock and fertilizer, and to increase the feed intake of livestock through ammonia removal, thereby shortening the breeding period. There is an advantage. In addition, this paper suggests ways to recycle desulfurized gypsum, which is a waste of desulfurization equipment, to be used as fertilizer for plants, and to reduce water consumption through recycling of treated water. There is an economical advantage to implement.

Claims (7)

A solid-liquid separation process for solid-liquid separation of the material to be treated such as animal husbandry slurry or sewage sludge into solids and water through a solid-liquid separation process; Solids dehydration and pellet manufacturing process for dehydrating the solids to lower water content and pelletize; The water separated in the solid-liquid separation process and the water purification process is chemically reacted with carbon dioxide gas of barn flue gas and sewage sludge digester gas in an agglomeration reaction tank to solidify ammonium sulfate and calcium carbonate and simultaneously contain desulfurized gypsum. Coagulant reacts with water pollutants with a coagulant of iron and aluminum, and transfers the treated water to a settling tank, and dehydrates and pellets solids of ammonium sulfate, calcium carbonate and aluminum and iron, which are immobilized by the deammonia process of the desulfurized gypsum. A water purification process for re-injection into the manufacturing process; The treated water separated in the water purification process is sprayed through the nozzle of the spray tube at the top of the slurry pit to wash the water ammonia, which is a malodorous molecule degassed by the water washing and dissolving the odor removal of the slurry pit Livestock manure treatment method. The solid-liquid separator 100 for separating the material to be treated with solids and water in the process of treating the material with high moisture content such as livestock manure slurry or sewage sludge, and dewatering the solids separated from the solid-liquid separator 100 The solid dewatering and pellet manufacturing apparatus 200 and the water separated by the solid-liquid separator 100 are formed into pellets. Sewage treatment device 300 of the slurry pit for removing the odor from the slurry pit 410 by introducing the purified water treatment device 300 and the treated water generated in the water purification apparatus 300 to the slurry pit 410 Livestock waste treatment apparatus, characterized in that configured to include. According to claim 1, wherein the solid-liquid separation device 100, the overflowware 103 is provided on one side of the separation tank 101 through which the material to be treated, such as livestock manure sludge or sewage sludge, is introduced through the inflow passage 105. The storage unit 102 is formed to be separated and the moisture of the slurry introduced into the separation tank 101 is stored beyond the overflow wear 103, the vibration conveyor belt screen 110 on one side of the separation tank 101 Livestock waste treatment apparatus characterized in that the installation is configured. The method of claim 1, wherein the solid dewatering and pellet manufacturing apparatus 200, the extrusion screw 210 is rotatably coupled to the inside of the dewatering extruder main body 201, the solid inlet 202 is provided on one end of the main wall; One side of the rotating shaft 211 of the extrusion screw 210 is rotatably coupled to the center of one end of the dehydration apparatus main body 201 by the bearing 260 to protrude outward is connected to the drive motor 220, The other end of the dewatering extruder main body 201 is coupled to the pellet forming plate 230 having a plurality of extrusion holes 231, the other side of the rotating shaft 212 of the extrusion screw 210 pellet forming plate 230 An opening 251 is formed in the central portion of the bearing 261 via a bearing 261, and the inside of the dewatering extruder main body 201 communicates with the solid inlet 202, and a plurality of dewatering holes 252 are formed. Ball dehydration cylinder 250 is coupled to the outside of the extrusion screw 210, the upper The cutting edge livestock waste treatment apparatus, characterized in that configured 232 is fixed for cutting the formed product is extruded in the extruding hole (231) of the other rotary shaft 212, an outer end portion, and pellets formed plate 230 of. According to claim 1, wherein the water purification apparatus 300 includes a water inlet 302, a coagulant inlet 303 for injecting a coagulant containing desulfurized gypsum into the circumferential wall of the coagulation reaction tank 301, carbon dioxide gas A gas inlet 304 for introducing a gas to be provided is provided, and inside the agglomeration reaction tank 301, a stirrer 310 for agitating the water introduced into the agglomeration reaction tank 301 and desulfurization gypsum to be completely mixed occurs. In addition, a driving unit 320 for rotating the stirrer 310 is installed at an upper end of the agglomeration reaction tank 301, and a communication tube is provided between the agglomeration reaction tank 301 and an upper end of a main wall of the precipitation tank 330 provided at one side. 331 is connected and the discharge pipe 332, 333 is provided at one side and the lower end of the main wall of the sedimentation tank 330, the partition wall 334 is installed in the middle of the interior of the sedimentation tank 330 Livestock Manure Division Redevice. According to claim 1, The odor removal device 400 of the slurry pit is installed on the water surface of the slurry pit 410 and the spray pipe 420 is coupled to a plurality of nozzles 421 for spraying water, and the powder Livestock manure processing device, characterized in that consisting of a buoyancy body 430 supporting the bein 420 to rise above the water surface according to the height of the water surface. According to claim 6, The buoyancy body 430 is provided with a holder 433 which is connected to the spray pipe 420 on the intermediate support rod 432 of the sub-ball 431, both sides of the lower portion of the holder 433 Livestock manure processing apparatus, characterized in that the buoy 435 is attached to the lower end of the auxiliary support bar 434 formed to be inclined.

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