WO2008156298A2

WO2008156298A2 - Recycling system for treatment of livestock excretion

Info

Publication number: WO2008156298A2
Application number: PCT/KR2008/003452
Authority: WO
Inventors: Seok Tae Lee
Original assignee: Seok Tae Lee
Priority date: 2007-06-18
Filing date: 2008-06-18
Publication date: 2008-12-24
Also published as: WO2008156298A3; KR20080111355A; KR100912916B1

Abstract

The present invention relates to a recycle system for treatment of livestock excrement, and, in particular, a recycle system for treatment of livestock excrement, comprising: a stable in which a porous plate for discharging the excrement is formed on the bottom, on which the livestocks are raised, of said stable, and in which a excrement sludge storing tank is formed below said porous plate; and a solid/liquid separation chamber for separating the excrement in said sludge storing tank into solid phase excrement and liquid phase excrement; and wherein a liquefied fertilizer obtained by fermenting and treating the liquid phase excrement extracted in said solid/liquid separation chamber is brought back to said stable and put into said excrement sludge storing tank installed on the bottom of said stable or is sprayed through injection nozzles installed on top of said stable, for the purpose of significantly improving the environment required for raising the livestock through preventing the bad smell in the stable, cleaning the stable, and purification of the air in the stable, in addition, significantly improving the environment of the stable by means of the liquid fertilizer obtained by fermenting the livestock excrement with the microorganism, so that the system requires low maintenance expenses and can treat the livestock excrement environment friendly and safely.

Description

RECYCLING SYSTEM FOR TREATMENT OF LIVESTOCK

EXCRETION

Technical Field

[1] The present invention relates to a recycle system for treatment of livestock excrement to create an optimal condition for raising livestock in a stable by manufacturing feeds and liquefied fertilizers by separating the excrements excreted from the livestock in the stable, in which various livestocks are raised such as cattle, pig or the like, into solid and liquid, and, at the same time, by bring back and injecting the liquefied fertilizers into the stable. Background Art

[2] Since the livestocks such as pig, cattle, sheep, goat, chicken, or the like raised in stock farm households are raised mostly for the purpose of profit of the stock farm households, the number of each livestock amounts to few hundreds to few thousands, in other words, each kind of most livestocks are raised in a mass, and accordingly there are cases in which the amount of excrements excreted from the livestocks in a day amounts to few thousands of tons, so that the appropriate treatment of the great amount of livestock excrements is very important in environmental point of view.

[3] In the past, most of the great amount of livestock excrements excreted from the livestocks were filtered through a separate purification facility, and then liquids were discharged to a drain and precipitated solid materials were separately collected and treated, however, recently, a variety of technics were introduced in which the livestock excrements were subjected to separate treatment process and recycled, an example being the technic in which the excrements were mixed with a sawdust and left alone for a long period to age and ferment to manufacture the fertilizer.

[4] However, in the previous method of fermenting by mixing with the sawdust, since the mixture had to be left alone for a long period, the excrements excreted in a large amount could not only be rapidly and effectively treated, but also a large treatment facility was necessary to concurrently satisfy both of the condition of leaving alone for a long period and the condition of treating the large amount of excrements resulting in a problem that the facility expense was high.

[5] Furthermore, since severely bad smell was produced during fermenting by leaving alone the excrements mixed with the sawdust, there occurred a phenomenon that people avoided the facility, so that there were problems in that there were many constraints in installation of the facility, and in that the mixture could not be used for other purposes than the fertilizer so that there were constraints in use. [6] Up to now, all the efforts have been put to research of treatment method of the excrement excreted from the livestocks so as to improve the quality and productivity of the fertilizer, however, recently, there is a movement of improving the environment of stable in which the livestocks are raised.

[7] That is, in case where the livestocks are raised in a mass in a narrow stable, there are problems in that the density of population of the livestocks per area is high so that the environment for raising the livestocks may be degraded, furthermore, harmful bacteria may propagate which causes various diseases, as well as the livestocks are subject to stresses to cause the degradation of the growth, therefore, it is necessary to pay a great attention to the environment of the stable for raising the livestocks.

[8] As a prior technology for above described matter, Korean Utility 20-0238748 discloses a environment friendly sanitary stable, where a stable which can be easily constructed and operated with low price are constructed with H-beams, a predetermined space is formed at the bottom, subsequently, the garbage from the stable are removed by moving the bottom of the stable forward and rearward by operating a brush by means of a pump in said predetermined space, at the same time the stable is sterilized or removed of bad smell by regularly spraying disinfectant with an atomizer, and mattress es are laid on the bottom so as to keep warm.

[9] However, in such a stable, it is substantially necessary to periodically and frequently wash or replace the brush so that the maintenance expense is high, there is a possible danger that the livestocks may be injured due to the toxicity of the disinfectant, and an adverse effect may affect the human eating the livestock, so that the environment friendly stable is still not provided. Disclosure of Invention

Technical Problem

[10] Therefore, the present invention is devised to solve various problems as described above, and the object of the present invention is to provide a recycle system for treatment of livestock excrement, which separates the livestock excrements into solid and liquid, and, on the one hand, uses the solid material, after fermenting it, as the feed or the environment friendly fertilizer, and, on the other hand, uses the liquid phase excrement, after proper fermenting and treating it with microorganism, as the liquid fertilizer, and, at the same time, brings the liquid fertilizer fermented and treated with the microorganism back to the stable and periodically sprays the liquid fertilizer into an excrement sludge storage tank and/or the stable, so as to significantly improve the environment required for raising the livestock through preventing the bad smell in the stable, cleaning the stable, and purification of the air in the stable, in addition, to significantly improve the environment of the stable by means of the liquid fertilizer obtained by fermenting the livestock excrement with the microorganism, so that the system requires low maintenance expenses and is environment friendly and safe. Technical Solution

[11] A recycle system for treatment of livestock excrement of the present invention to achieve the above described object is characterized in that, it comprises: a stable in which a porous plate for discharging the excrement is formed on the bottom, on which the livestocks are raised, of said stable, and in which a excrement sludge storing tank is formed below said porous plate; and a solid/liquid separation chamber for separating the excrement in said sludge storing tank into solid phase excrement and liquid phase excrement; and wherein a liquefied fertilizer obtained by fermenting and treating the liquid phase excrement extracted in said solid/liquid separation chamber is brought back to said stable and put into said excrement sludge storing tank installed on the bottom of said stable or is sprayed through injection nozzles installed on top of said stable,

[12] In a preferred embodiment of the present invention, said system is characterized in that it further comprises: a microorganism culturing chip purification/treatment tank in which microorganism culturing chips seeded with the aerotropic microorganism are placed, thereafter the liquid phase excrement is passed through the chips and a pipe for supplying the air is formed at the bottom thereof; and an aeration and microorganism solution manufacturing site in which the liquid phase excrement purified in said microorganism culturing chip purification/treatment tank is received, and aeration is performed by bubble generators so as to manufacture the primary treated liquefied fertilizer; whereby the primary treated liquefied fertilizer is sprayed into said excrement sludge storing tank installed on the bottom of said stable.

[13] In a further embodiment of the present invention, said system is characterized in that the primary treated liquefied fertilizer is stored and fermented, for a predetermined period, in a microorganism solution culturing tank, in which kaolin bricks are installed and air injection openings and a heater are installed on the bottom thereof, to man ufacture secondary treated liquefied fertilizer, and the secondary treated liquefied fertilizer is sprayed through injection nozzles installed on top of said stable.

[14] In a still further embodiment of the present invention, said system is characterized in that it further comprises a Baroque fermentation chamber in which the solid phase excrement separated and extracted in said solid/liquid separation chamber is received and sealed, an oxygen pipe for supplying the air is installed, and the solid phase excrement is left alone for a predetermined period so as to manufacture feed or environment friendly fertilizer.

Advantageous Effects [15] According to the recycle system for treatment of livestock excrement of the present invention as described above, it effectively separates the livestock excrements into solid and liquid excrements in a solid/liquid separation chamber of which the efficiency and convenience are increased, and, on the one hand, uses the solid material as the feed or the environment friendly fertilizer, and, on the other hand, uses the liquid phase excrement, after proper fermenting it with microorganism, as the liquid fertilizer, so that it has advantages in that the excrements can be effectively treated as well as the maintenance of the solid/liquid separation chamber is easy.

[16] In addition, the system brings the liquid fertilizer back to the stable and periodically sprays it into an excrement sludge storage tank and/or the stable, so as to provide an optimum environment friendly condition required for raising the livestock through preventing the bad smell in the stable, cleaning the stable, and purification of the air in the stable, so that the system can prevent the diseases and infectious diseases of the livestocks and raise the livestock of good quality through the optimum condition, therefore, the system has an effect of increasing the profit of the stock farm household through marketing the livestocks with high price. Brief Description of the Drawings

[17] Fig. 1 is an entire block diagram of an embodiment of a recycle system of the present invention.

[18] Fig. 2 is a construction drawing of a stable of the recycle system of the embodiment of the present invention.

[19] Fig. 3 is a construction drawing of a solid/liquid separation chamber of the recycle system of the embodiment of the present invention.

[20] Fig. 4 is a sectional view along a line A-A of fig. 3.

[21] Fig. 5 is a construction drawing of a microorganism culturing chip purification/ treatment tank of the recycle system of the embodiment of the present invention.

[22] Fig. 6 is a construction drawing of an aeration and microorganism solution manufacturing site of the recycle system of the embodiment of the present invention.

[23] Fig. 7 is a construction drawing of a microorganism solution culturing tank of the recycle system of the embodiment of the present invention.

[24] Fig. 8 is a construction drawing of a Baroque fermenting chamber of the recycle system of the present invention. Mode for the Invention

[25] Below is given a detailed description of the present invention with reference to the accompanying drawings showing preferred embodiment type of the present invention.

[26] Fig. 1 is an entire block diagram of an embodiment of a recycle system of the present invention. As shown in Fig. 1, the recycle system for treatment of livestock excrement of the present invention separates livestock excrement, which are excreted from livestock raised in a stable 10, into liquid phase excrement and solid phase excrement at solid/liquid separation chamber 20, and, on the one hand, deodorizes the liquid phase excrement and seeds the microorganism to it at a microorganism culturing chip purification/treatment tank 30, thereafter, cultures and ferments the microorganism by bring the liquid phase excrement into contact with oxygen through an aeration action at an aeration and microorganism solution manufacturing site 40, supplies the primary treated liquefied fertilizer U' manufactured as described above to farm households or bring it back to the stable 10 and put it into a sludge storing tank, which is installed at the bottom of the stable, so as to create an environment beneficial to raising the livestock, and, on the other hand, ferments the liquid excrement, which is separated and extracted at the solid/liquid separation chamber, at a baroque fermenting chamber 60 which bring the solid excrement into contact with oxygen in a sealed space, so as to manufacture feeds or environment friendly fertilizers.

[27] At this time, the primary treated liquefied fertilizer is retained in a microorganism solution culturing tank 50, which is maintained at a predetermined temperature and provided in it with a kaolin brick and an oxygen supplying means, so as to manufacture secondary treated liquefied fertilizer, thereafter, the secondary treated liquefied fertilizer can be sprayed through spray nozzles installed on top of the stable 10.

[28] Below is given a description of specific form and action of each constitutional elements of the block diagram with reference to figs. 2 to 8, and the present invention will be further embodied through the description.

[29] Fig. 2 is a construction drawing of a stable 10 of the recycle system of the embodiment of the present invention. As shown in fig. 2, the stable 10 is provided, at the bottom of its space for raising the livestock, with a porous plate 12, so that the excrement from the livestock can be put into a sludge storing tank 13 formed at the bottom of the stable 10.

[30] The excrement collected in the sludge storing tank 13 is subjected to a predetermined ferment and treatment process, which is described later, through a solid/liquid separation chamber 20, thereafter, finally, the primary treated liquefied fertilizer U', which was manufactured by fermenting the excrement at the aeration and microorganism solution manufacturing site 40, is again put into the excrement in the sludge storing tank 13 through a first injection nozzle 14 installed in the sludge storing tank 13.

[31] As such, the livestock excrement is fermented and solved in the form of gruel due to introduction of the microorganism solution so as to constrain the generation of ammonia, and therefore, prevent the bad smell in the stable, and the generation of the smell is minimized at the solid/liquid separation process, which is the last process, in the solid/liquid separation chamber 20.

[32] On the one hand, a part of the primary treated liquefied fertilizer U' extracted at the aeration and microorganism solution manufacturing site 40 retreated at the microorganism solution culturing tank 50 so as to be the secondary treated liquefied fertilizer U", the secondary treated liquefied fertilizer U" is sprayed into the stable through the second injection nozzle 15 installed on top of the stable 10.

[33] The second injection nozzle 15 can spray the secondary treated liquefied fertilizer as well as water W for washing the inside of the stable, and, at this time, the second injection nozzle 15 can be provided in such a way that an injection nozzle for spraying the secondary treated liquefied fertilizer U" and an injection nozzle for spraying the water W are separately installed or, as shown, the secondary treated liquefied fertilizer or the water is sprayed through one injection nozzle by making the one injection nozzle to be opening/closing controlled through a three-way valve 17.

[34] If the secondary treated liquefied fertilizer U" is atomized and sprayed together with a mist into the stable, the bad smell and the dust in the air can be removed, and, in addition, the adjustment of the humidity is possible in case of dryness, therefore, the environment in the stable can be improved. In case of spraying the water, the excrement on the wall surface or bottom of the stable can be washed away so as to be discharged through the porous plate 12, so that the inside of the stable can be maintained clean.

[35] Here, the spray of the secondary treated liquefied fertilizer U" or the water by means of the second injection nozzle can be automatically performed depending on the necessity through a control sensor 18 which measures and senses the humidity, temperature, smell, pollution level such as dust concentration in the stable, and, in addition, the control sensor 18 can periodically spray the secondary treated liquefied fertilizer or the water in interlock with a timer upon elapse of predetermined period.

[36] On the one hand, when a yellow earth powder solution seeded with the microorganism is coated on the inside surface 11 of wall and ceiling of the stable 10 and dried to form a yellow earth powder layer 16, far infrared ray can be emitted from the wall surface of the stable 10 so as to promote the raising of the livestock.

[37] Fig. 3 is a construction drawing of a solid/liquid separation chamber of the recycle system of the embodiment of the present invention and Fig. 4 is a sectional view along a line A-A of fig. 3.

[38] As shown in figs. 3 and 4, the solid/liquid separation chamber 20 is consisted of a case 21, which is in the form of a circle to receive the excrement supplied from the stable and is capable of being opened and closed by being divided into an upper part and a lower part, an agitation screw 22 for transferring the excrement by being installed to be able to perform rotation about a shaft by means of a motor M in the case, and a porous net drum 23 installed in the form of a net between the exterior surface of the agitation screw 22 and the interior surface of the case.

[39] Here, the porous net drum 23 discharges liquid phase excrement U among the excrement like a sieve, leaving the solid phase excrement F left alone. At the bottom of the case 21, there are provided a liquid phase material discharge opening 24 for discharging the liquid phase excrement U extracted by means of the porous net drum 23, and a solid phase discharge opening 25 for discharging the solid phase excrement F left in the porous net drum 23.

[40] Here, to satisfactorily separate the excrement into the liquid phase excrement U and the solid phase excrement F, it is preferable that the porous net drum 23 is rotated about a shaft of the agitation screw 22, that is, the porous net drum and the agitation screw are concurrently rotated.

[41] In addition, in case where the excrement is captured or fixed in the net of the porous net drum 23, it is difficult to separate the liquid phase excrement U, therefore, it is preferable to install a plurality of air nozzles 27, which can inject the air with high pressure, at the inner surface of top side of the case 21, so as to inject the air downward to remove the excrement fixed in the porous net drum 23.

[42] The liquid phase excrement U obtained by solid/liquid separation as described above is transferred to the purification/treatment tank 30 which is a subsequent treatment chamber and in which the microorganism culturing chips are stored, and the solid phase excrement F is put into the Baroque fermenting chamber 60 via a transfer means such as the screw 26.

[43] Fig. 5 is a construction drawing of a microorganism culturing chip purification/ treatment tank 30 of the recycle system of the embodiment of the present invention. In the microorganism culturing chip purification/treatment tank 30, the microorganism culturing chips 34 seeded with aerotropic microorganisms are piled up to the height of about 1.8m to 2m, and at the bottom of the tank 30, ducts 32 connected to a fan 33 are installed so that the air is supplied from the bottom of the microorganism culturing chip 34.

[44] The material constituting the microorganism culturing chip 34 is wood, and there is no limitation for the length of the chip, however, it is preferable that the length of the chip is such that, in case where a plurality of wooden chips form layers while being tangled with each other, various large and small spaces are formed between the wooden chips, since, in case where the air supplied from the ducts 32 is flown into the space formed between the wooden chips, a useful environment is provided for proliferation of the aerotropic microorganisms seeded to the wood and cultured.

[45] Under such condition, when the liquid phase excrement U separated in the solid/ liquid separation chamber 20 is uniformly sprayed onto the microorganism culturing chips 34 through a pipe 31, while the liquid phase excrement U passes through the space between the microorganism culturing chips, the bad smell remaining in the excrement is completely removed due to the fermenting action of the microorganisms, and the liquid phase excrement U in the condition of being seeded with the microorganisms is transferred to the aeration and microorganism solution manufacturing site 40 which is a subsequent process.

[46] Fig. 6 is a construction drawing of an aeration and microorganism solution manufacturing site 40 of the recycle system of the embodiment of the present invention. The aeration and microorganism solution manufacturing site 40 has in it a plurality of containers so as to receive the liquid phase excrement U purified in the microorganism culturing chip purification/treatment tank 30, and at the bottom of the aeration and microorganism solution manufacturing site 40, bubble generators 42 are installed, and below thereof, drain pipes 43 are provided.

[47] When the bubble generators 42 are operated in the condition of storing the liquid phase excrement U in the aeration and microorganism solution manufacturing site 40, countless number of the bubbles are generated in the aeration and microorganism solution manufacturing site 40 and at the same time the liquid phase excrement convects the container, and, in this process, the liquid phase excrement U input with the microorganism continuously contacts the oxygen and is fermented so that the primary treated liquefied fertilizer U' is manufactured.

[48] The primary treated liquefied fertilizer U' is put into the sludge storing tank 13 of the stable 10 as described above or transferred to the microorganism culturing tank 50 described later.

[49] Fig. 7 is a construction drawing of a microorganism solution culturing tank of the recycle system of the embodiment of the present invention.

[50] As shown, the microorganism solution culturing tank 50 comprises a fan 51 which is a means for injecting the air into the tank 50, a pipe 52 connected to the fan 51, and at least one air injection openings 53 formed in the pipe 52.

[51] The pipe 52 is connected from the fan 51 so as to be placed on the bottom surface of the culturing tank 50, forms a plurality of rows in the transverse or longitudinal direction or is provided with branches.

[52] For the air to be injected in the form of being fine grained like fine air droplet through the air injection opening 53, the diameter of the air injection opening 53 is of 0.3 to 0.8mm, and, on the one hand, a plurality of kaolin bricks 54 are installed at the bottom of the culturing tank 50, at this time the kaolin bricks 54 are installed around the air injection opening 53.

[53] The kaolin which is main material of the kaolin bricks 54 is soil which is produced when the rock and the stone are solved due to the chemical action of the water and the carbonic acid, and main minerals of the kaolin are kaolinite AlO.2SiO.2HO and halloysite A10.Si0.4H0, the kaolin is known to emit far infrared ray and anion, so that when the aerotropic microorganism contacts the kaolin as in the present invention, there is a characteristics that the microorganism is activated due to the good environment.

[54] The kaolin brick 54 is manufactured by forming the kaolin in to a predetermined shape and then plasticize the kaolin in a charcoal kiln in the temperature range of 1100 to 135O⁰C, and when produced in that way, countless number of fine gaps which however are not visible are formed, and when the aerotropic microorganism is seeded to the fine gap, a condition appropriate for propagation and culturing of the microorganism by supply of the sufficient air is formed.

[55] The microorganism solution culturing tank 50 comprises a heater 56 which is installed on the bottom of the tank 50 to maintain the range of temperature inside thereof to 35 to 4O⁰C which is appropriate for activation of the aerotropic microorganism, a controller 55 for controlling ON/OFF of the heater 56, and a temperature sensor 57 for automatically maintaining the appropriate temperature.

[56] The microorganism solution culturing tank 50 can manufacture the secondary treated liquefied fertilizer U" of high purity by sufficiently contacting the primary treated liquefied fertilizer U' with the oxygen under appropriate temperature, and the purified secondary treated liquefied fertilizer U" is tranferred into the stable 10 as described above and sprayed into the stable through the second injection nozzle 15.

[57] Fig. 8 is a construction drawing of a Baroque fermenting chamber 60 of the recycle system of the present invention.

[58] Since the solid phase excrement F separated in the solid/liquid separation chamber 20 as described above has been already fermented in the sludge storing tank 13 by means of the liquefied fertilizer, the solid phase excrement F can be directly treated in the Baroque fermentation chamber 60.

[59] The Baroque fermentation supplies the oxygen in a sealed space and ferments in that space, and there is advantage in that the installation expenses is low, and the Baroque fermentation is economical so as to be inexpensively installed provided that the condition of fermentation by means of the microorganism is satisfied.

[60] That is, as shown in fig. 8, an oxygen pipe 61 connected to an oxygen supply 62 is installed on the bottom of the sealed space, the solid phase excrement F separated in the solid/liquid separation chamber 20 is loaded in the sealed space, and, thereafter, the solid phase excrement F is left alone for a predetermined period while supplying the oxygen through the oxygen pipe 61, then the microorganism put in in the sludge storing tank 13 actively acts by means of the oxygen supplied through the oxygen pipe 61, so that the solid phase excrement F is sufficiently fermented so as to be used as the material for the feed.

[61] The description given above is given with reference to an embodiment shown in the drawings, however, the embodiment is only exemplary, and the ordinary skilled person in the present field of art understands that various changes from the embodiment and other equivalent embodiments may be possible, and such changes are within the technical range of the Claims described below.

Claims

[1] A recycle system for treatment of livestock excrement, comprising: a stable 10 in which a porous plate 12 for discharging the excrement is formed on the bottom, on which the livestocks are raised, of said stable 10, and in which a excrement sludge storing tank 13 is formed below said porous plate 12; and a solid/liquid separation chamber 20 for separating the excrement in said sludge storing tank 13 into solid phase excrement F and liquid phase excrement U; and wherein a liquefied fertilizer obtained by fermenting and treating the liquid phase excrement U extracted in said solid/liquid separation chamber is put into said excrement sludge storing tank 13 installed on the bottom of said stable 10 or is sprayed from the top of said stable 10.

[2] The recycle system for treatment of livestock excrement according to claim 1, wherein the liquefied fertilizer obtained by fermenting and treating the liquid phase excrement U is primary treated liquefied fertilizer U' which is manufactured by, putting the liquid phase excrement U into a microorganism culturing chip purification/treatment tank 30 in which microorganism culturing chips 34 seeded with the aerotropic microorganism are placed and a pipe 32 for supplying the air is formed at the bottom thereof, and thereafter, contacting the liquid phase excrement U with the oxygen in an aeration and microorganism solution manufacturing site 40 in which bubble generators 42 are installed, and the primary treated liquefied fertilizer U' is put in through first injection nozzles 14 installed in said sludge storing tank 13.

[3] The recycle system for treatment of livestock excrement according to claim 2, wherein, secondary treated liquefied fertilizer U", which is manufactured by storing and fermenting, for a predetermined period, the primary treated liquefied fertilizer U' in a microorganism solution culturing tank 50, is sprayed through second injection nozzles 15 installed on top of said stable 10, and in said microorganism solution culturing tank 50, kaolin bricks 54 are installed and air injection openings 53 and a heater 56 are installed on the bottom thereof.

[4] The recycle system for treatment of livestock excrement according to claim 1, wherein, the solid phase excrement F separated and extracted in said solid/liquid separation chamber 20 is left alone in a Baroque fermentation chamber 60 for a predetermined period so as to manufacture feed or fertilizer, and said Baroque fermentation chamber 60 is provided at its bottom with an oxygen pipe 61 for supplying the air and the inside of said chamber 60 is sealed.

[5] The recycle system for treatment of livestock excrement according to claim 3, wherein said second injection nozzles 15 spray the water W for washing said stable.

[6] The recycle system for treatment of livestock excrement according to claim 3, wherein the operation of spraying the secondary treated liquefied fertilizer U" or the water W is controlled in interlock with a control sensor 18 which is installed in said stable 10 to sense at least one of the humidity, temperature, smell, dust concentration, and time.

[7] The recycle system for treatment of livestock excrement according to any one of claims 1 to 5, wherein a yellow earth powder layer 16 seeded with the microorganism in coated on inside surface 11 of said stable 10.

[8] The recycle system for treatment of livestock excrement according to any one of claims 1 to 5, wherein said solid/liquid separation chamber 20 comprises, a case 21 for receiving the excrement supplied from the stable, an agitating screw 22 for transferring the excrement by being installed rotatable about a shaft in said case, a porous net drum 23 in the form of a net installed between the outer surface of said agitating screw and the inner surface of said case, a liquid phase material discharge opening 24, formed on the bottom of said case, for discharging the liquid phase excrement extracted by means of said porous net drum, and a solid phase discharge opening 25, formed on the bottom of said case, for discharging the solid phase excrement left in said porous net drum.

[9] The recycle system for treatment of livestock excrement according to claim 8, wherein said porous net drum 23 is installed rotatable about said shaft in said case.

[10] The recycle system for treatment of livestock excrement according to claim 8, wherein at least one air nozzles 27 for injection of the air of high pressure are installed on the inner surface of the top side of said case 21 to remove remaining materials captured in said porous net drum 23.