KR20010000322A - Filtration disposal method of wastewater and cattle night soil and the filtration disposal system thereof - Google Patents

Abstract

PURPOSE: A livestock wastewater/sewage treatment system using filtration is provided, which is characterized in that livestock wastewater/sewage which is discharged from solid/water separator is filtered in a filtration tank, and the filtered livestock wastewater/sewage is treated by the steps of circulation tank → filtration tank → circulation tank → aeration tank in aerobic condition. Final filtered water is used as cleaning water or liquid fertilizer. CONSTITUTION: The system comprises a raw wastewater storage tank (30) to store raw wastewater discharged from the solid/water separator (10); a filtration tank (20), packed with media, rotated intermittently with ventilation; a circulation tank (40) to recycle filtered water, discharged from the filtration tank (20), to the filtration tank (20) with aeration; an aeration tank (50) to aerate filtered water discharged from the circulation tank (40); a compressor (60) for ventilation of the filtration tank (20); a blower (61) for aeration in the circulation tank (40) and the aeration tank (50); an injector (70) to supply media to the filtration tank(20).

Description

Filtration disposal method of wastewater and cattle night soil and the filtration disposal system

The present invention relates to a wastewater and livestock manure filtration treatment method and a treatment system thereof, and more specifically, to separate the wastewater and livestock manure by liquid-liquid so that the separated liquid can be easily, easily and economically treated.

As the dietary standard of the people changes due to the improvement of living standards, the consumption of livestock products is rapidly increasing, and the livestock scale is naturally increasing to meet the demand of livestock products.

Accordingly, the increase in the number of livestock heads raises the issue of proper management of livestock wastes including livestock manure due to the increase in livestock scale, and the demand for clean environment is increased. As a result, the management burden on livestock farmers is increasing.

Up to now, livestock has been developed mainly for improving livestock breeding technology. However, as the environmental pollution problem caused by livestock has become a social issue, management and treatment technology for livestock manure and livestock wastewater has emerged as a major area of livestock farming.

In Korea, 89% of the farms subject to livestock manure treatment facilities have installed treatment facilities, with 80% of the resources being installed in purification and discharge facilities. According to the Ministry of Agriculture and Forestry (March 1997) data, the utilization rate of these installations is only 73.9% for resources and 16.7% for purification and discharge facilities.

This phenomenon is thought to have occurred in the process of indiscriminately distributing treatment facilities that have not been scientifically validated in the absence of a country-specific livestock manure treatment technology.

In Korea, due to the high density of the population and geographical conditions, the arable land and grassland area are not only narrow, but also due to the large seasonal temperature difference, it is virtually impossible to apply livestock waste disposal methods that some advanced countries have tried.

In the case of a purification discharge facility, the concentration of raw water should be maintained at a BOD of 2,000 to 4,000 mg / l to maintain proper efficiency. However, it is impossible to satisfy such a level in consideration of economic feasibility with existing solid-liquid separation technology.

Interest in liquid manure (liquid fertilizer) has recently been increasing as part of the plan to resource livestock manure in the treatment of livestock manure, but the technology for producing high quality liquid fertilizer at low cost has not been spread.

On the other hand, in terms of enhancing the domestic competitiveness of domestic livestock, the most important thing is to create an environment in which livestock farmers can reduce the burden on the treatment of livestock manure and livestock waste and create an environment that can be devoted to increasing productivity as much as possible. . To this end, it is necessary to develop a system suitable for the situation of our country and to supply livestock wastewater treatment systems including livestock manure with resource-saving moderation efficiency.

In view of the above circumstances, development of technology related to the fields mentioned below is considered to be urgent.

First, there is a need to develop high-efficiency pretreatment facilities that can improve the utilization rate of purification and discharge facilities, which is only 16.7%.

Second, the development and dissemination of liquid fertilizer manufacturing technology that can produce high-quality liquid fertilizer should be made.

Third, it is necessary to develop saving water technology (節水 技術) that can reduce production costs and livestock manure processing costs of livestock farms by recycling the treated water as washing water.

However, in order to fundamentally block the environmental pollution caused by livestock waste, including livestock manure, composting with moisture control materials is used to reduce the land, but this method is not only expensive for initial investment but also expensive for sawdust, which is a moisture control material. Subsequently, the operation cost of purchasing sawdust is excessive, making it unsuitable for farms of medium and large size.

In recent years, the treatment of livestock manure appropriately to reduce the arable land in the form of liquid fertilizer has been in the spotlight at home and abroad. This method is known to be effective for sustainable agriculture because livestock manure can be used as a liquid fertilizer, so that no additional facility for advanced processing is required, and thus the processing cost is low and a certain amount of chemical fertilizer can be replaced.

As such, the prior art applicable for the purpose of utilizing livestock manure as a liquid fertilizer includes storage liquid fertilizer and rapid fermentation treatment system. In the case of the storage liquid rain due to the climate difference of the country, due to the large temperature difference according to the season, there is a problem in inducing the storage liquid fertilization, so the areas adjacent to the farmland and the residential area may cause complaints due to odor, and also due to unstable housing We are concerned about last year.

In addition, the rapid fermentation treatment system has a high treatment efficiency, including odor reduction effect, but the initial construction cost and maintenance costs are high.

The rapid fermentation system distributed in our country feeds fungicides with feed to promote digestion and absorption in the intestines of animals and treats excreted livestock manure for a long period of time (35 to 70 days) in aerobic and anaerobic conditions. It has been spread for the purpose of spontaneous evaporation of -85%), but the evaporation efficiency is low.

Since livestock manure (pigmented manure) is a high concentration organic matter of BOD 20,000-30,000mg / l, there is a problem to treat it using a system designed for treating general wastewater.

In particular, because the characteristics of the livestock manure appears uneven according to the breeding stage, specification method, season, etc., there is a demand for a pretreatment system that can be flexibly treated. Conventional technologies developed in this background include solid-liquid separators, decanters, and the like.

The solid-liquid separator is shown in various forms, such as vibrating, centrifugal, inclined. Contaminant removal efficiency of these systems is only 15% or less, so it is suitable for removing impurities contained in livestock manure, but there is a problem to use as an independent pretreatment system.

Decanter is a system that centrifuges at high speed with coagulant added to raw water. The treatment efficiency is higher than that of general solid-liquid separator, but it is difficult to apply on-site due to high initial investment and maintenance cost (coagulant purchase cost).

The present invention has been invented to solve the above problems, and its object is to filter the solid-liquid separated raw water into a filter bed filled in a low-cost, high-efficiency filter tank, and filter the filtered water in a filtered water circulation tank → filtration tank → filtration water circulation. The present invention provides a method for treating wastewater and livestock manure filtration and a system for filtering the finally filtered filtrate under aerobic conditions using air blowing in the order of a tank to a filtration water and a livestock manure filtration.

1 is a schematic diagram of a wastewater and livestock manure filtration treatment system according to the present invention

Figure 2 is a front configuration diagram for explaining the operating state of the waste water and livestock manure filtration tank according to the present invention

3 is a partial cross-sectional view for explaining the internal configuration of the wastewater and livestock manure filtration tank according to the present invention

※ Code explanation for main part of drawing ※

10: solid-liquid separator 20: filtration tank

21: braid 22: blowing piping

22,32,42,44,49,53: Supply pipe

23: support 24: cylinder

25,28: lid 26: filter

27: screen network 30: raw water storage tank

31,41,48,51: pump 35: raw water pipe

40: filtered water circulating tank 46,52: discharge pipe

50: filtered water aeration tank 60: compressor

61: blower 70: filter feeder

M: motor

Referring to the technical configuration of the wastewater and livestock manure filtration system of the present invention for achieving the above object is as follows.

Waste water and livestock manure filtration system of the present invention is a raw water storage tank for receiving and storing the raw water separated from the solid-liquid separator; A filtration tank for filtering the raw water stored in the raw water storage tank while blowing and intermittently rotating in the state in which the filter medium is filled; A filtered water circulating tank for receiving the filtered water filtered in the filtration tank and recycling the filtered water to the filtration tank while aerated; A filtered water aeration tank receiving the filtered water in the filtered water circulation tank and inducing aerobic decomposition while aeration of the filtered water; Compressor responsible for blowing the filtration tank, and the filter circulating tank and the blower for aeration of the filtration water aeration tank, and the filter feeder for supplying the filter medium to the filtration tank.

The raw water storage tank and the filtrate circulating tank are provided with respective supply pipes having pumps for supplying raw water and filtered water to the filtration tank, and the respective supply pipes for supplying air from the compressor and the blower are provided in the filtration tank and the filtrate circulating tank and the filtrate aeration tank. It is prepared.

Moreover, the support base of the said filtration tank, the filtration water circulation tank, and the filtration water aeration tank are provided underground. A transfer pipe provided with a pump for recycling the filtered water introduced into the filtered water circulation tank to the filtered water tank or for transferring the filtered water to the filtered water aeration tank is provided, and the discharge water pipe is provided at the filtered water aeration tank to discharge the treated filtered water to the outside.

In addition, the filter tank is provided with a braid and a cultivation pipe at regular intervals along the inner wall of the filter tank, and the filter medium supplied to the filter tank is a non-combustible and non-degradable material that does not fracture or dissolve and has a rough surface and a non-toxic material.

In addition, the filtration tank is installed to have a predetermined inclination, and a support and a cylinder are installed at the bottom of the filtration tank installed to have the predetermined inclination, and the support and the cylinder installed at the bottom of the filtration tank are installed to be located underground.

In addition, the filtration tank is a sealed structure and the form is any one of the ready-mixed concrete, elliptical, cuboid shape, the filtration tank is provided with a lid that can be opened and closed at one end, and the screen body and the sealing lid which can be opened and closed are sequentially installed on the other side.

Meanwhile, the wastewater and livestock manure filtration method of the present invention comprises a first step of filtering raw water separated from the solid-liquid separator while blowing air and intermittent rotation to a filter tank filled with a filter medium; A second step of supplying the filtrate in the filtrate filtered in the first step to a filtrate circulating tank and inducing aerobic decomposition while aeration of the filtrate circulating tank; A third step of performing filtering under aerobic conditions by blowing air in the filtration tank while recirculating the filtration water in the filtration tank to the filtration tank in parallel with the second step; A fourth step of supplying the filtrate filtered in the third step to the filtrate circulating tank again and inducing an aerobic treatment while aeration of the filtrate circulating tank; And a fifth step of inducing aerobic decomposition while aeration of the filtrate treated in the fourth step in the filtrate aeration tank and discharging the final treated water to a subsequent process or farmland.

The filter medium, raw water, filtration tank, blower and aeration device, filtration net, filtration water circulation tank, filtration water aeration tank, method of utilizing the final treated filtration water, and those to be used in the wastewater and livestock manure filtration system of the present invention having such characteristics The following is a description of conditions.

First, the media used in the present invention should be an ideal media to stabilize the treatment efficiency of the filtration tank 20 and increase the field applicability, and the conditions that the media should have are non-combustible and non-decomposable materials, which are not crushed or leached. It should be a material, rough and lightweight material.

The reason for using the filter medium as non-combustible material is that it must not be combustible because it needs to go through a simple drying process when applying the operation strategy for recycling the filter medium.

The reason for using hardly degradable materials is to minimize the cost of purchasing the media, to reuse the media, not to be degraded by microorganisms, or to be modified by toxic substances contained in livestock manure.

In addition, the reason why the material should not be crushed should not be decomposed due to agitation performed for the purpose of preventing the filtration pressure or the channeling phenomenon of the media, and it is not easily crushed during the simple physical process for the reuse of the media. Because it should not be,

The reason why it should be a material that does not dissolve is that if crushed or leached media are included in the filtered water and discharged, there is a concern that many problems will occur in stabilizing the aftertreatment system due to the decrease in filtration efficiency and the level of the discharged filtered water. Because there is.

The reason for using lightweight materials is that the use of lightweight materials in order to minimize the level of load affecting the stirring system during the stirring process to prevent the filtration pressure or channeling phenomenon of the media increases the processing efficiency. Not only because it's energy saving,

The reason why the rough surface material should be used is that the foreign substances contained in the livestock manure must be able to adhere well.

The media having the above conditions should be easily purchased at low cost in livestock farms and should be able to exert its effects. In the present invention, the chaff was selected as the media and explored its availability through experiments.

The chaff can compensate for the shortcomings of sawdust and in order to maximize the advantages of chaff that can be easily purchased in livestock farms in the present invention attempted to improve the filtration efficiency by modifying the system operation method. As a result, the sawdust was used as a filter medium.

In addition, the raw water supplied to the filtration tank 20 together with the filter medium must be supplied by pretreatment. The reason for this is that if the manure is directly put into the filtration tank 20 without pretreatment, there is a positive aspect that the treatment process can be simplified. The same problem occurs.

As the first time elapses, the filtered foreign matter fills the voids between the media particles, so the throughput gradually decreases.

Second, if animal manure containing 1.5 ~ 5.5% solids is added without pretreatment, the amount of solids accumulated in the filter media layer is relatively large and the life span of the filter media is shortened.

Third, since large foreign substances (pig feather, wood, concrete chips, tape, feed cloth, etc.) contained in livestock manure have a negative effect on the smooth operation of nozzles or pumps, which are means of supplying raw water to the filtration tank 20, This is the cause of failure.

Therefore, the proper pretreatment of the raw water using the solid-liquid separator 10 can not only solve the above-mentioned problems but also improve the treatment efficiency of the filtration tank 20 as follows.

① When the manure with SS of 20,000 to 30,000ppm is treated using the solid-liquid separator 10, 10 to 35% of the SS can be removed, thereby reducing the level of load to be treated in the filtration tank 20. In addition to improving the processing efficiency of), the life of the media can be extended.

② Vibration solid-liquid separator showed 2 ~ 4 times higher processing efficiency than centrifugal solid-liquid separator. Therefore, it can be seen that it is preferable to use a vibrating solid-liquid separator rather than a centrifugal solid-liquid separator to increase the treatment efficiency of the pretreatment process.

③ The foreign substances (pig feather, wood, concrete pieces, tape, feed cloth pieces) contained in the incoming raw water are removed in advance using the solid-liquid separator 10 to smoothly operate the nozzle or pump installed in the filtration tank 20. This was possible.

④ Considering the fact that most livestock farms are processing livestock manure without separating solids, solid-liquid separator 10 and filtration tank 20 are compactly connected and applied to the site as a single system concept. Can be.

In addition, agitation (Mixing) of the filtration tank 20 is to give a uniform stirring of the filter medium layer on a regular basis, the conditions to be provided for effective stirring of the filter medium in the filtration tank 20 are as follows.

First, the power of the stirrer to stir the filtration tank 20 is unified as much as possible to minimize the power requirements and the possibility of failure, and the stirring system of the form that can stir the front of the filtration tank 20 and does not interfere with the flow of raw water to be sprayed do.

The filtration tank 20 uniformly mixes raw water accumulated in the filtration layer with the filtration medium as a large amount of livestock manure is treated, and has a width of 30 cm on the inner wall of the filtration tank 20 to effectively prevent filtration or channeling of the filtration medium. The blade 21 was installed in a spiral shape.

On the other hand, the filter medium in the filtration tank 20 is discharged out along the braid 21 during the forward rotation. When the life span of the filter medium is reached, the filter tank 20 is placed in a horizontal state and the waste filter agent is discharged to the outside. The stirring method of the present system is largely divided into two.

First, the filtration tank 20 is positioned at an angle of 35 to 50 ° and then rotated forward to push the contents out, and the pushed contents are stirred while being mixed back into the filtration tank by gravity.

Secondly, there is a method in which the contents of the filtration tank 20 are stirred while moving inward along the braid 21 by rotating the filtration tank 20 in a state in which the filtration tank 20 is positioned at an angle of 5 to 15 °.

In addition, the filter net installed on one side of the filtration tank 20, that is, the screen net 27, the screen support 26 is installed for the purpose of improving the filtration efficiency by minimizing the media or foreign substances discharged with the filtered water.

The filter system of the newly designed system for the purpose of minimizing foreign substances contained in the filtered water and reducing screen clogging that may occur during long-term operation is characterized by the small particles (organic matter) contained in the wastewater and animal manure including chaff. Screen net 27 is used 10-10 mesh to prevent discharge with the filtered water, screen support 26 is composed of a perforated network of 1 ~ 10mm.

In addition, the Aeration system of the present invention induces the flow of livestock manure and allows aerobic decomposition of raw water accumulated in the media. Sterilization effect of pathogene microbes or weed seeds due to decomposition heat generated during aerobic decomposition of organic matter accumulated in the media can be expected to reduce the filtered water to the soil in a stabilized liquid ratio.

In this respect, smooth blowing is essential for not only improving the system treatment efficiency of the present invention but also extending the life of the media.

In order to maximize the treatment efficiency of the filtration tank 20 designed to exhibit the purification effect by the adsorption on the surface of the filter medium while solid organic matter or dissolved organic matter constituting the waste water and livestock manure More importantly, the contact time and contact area of the media and the wastewater and livestock manure that have been introduced are increased so that the organic matter contained in the raw water is adsorbed to the media as much as possible.

In the system of the present invention, in order to increase the contact time and the contact area, an operation method of storing the filtered water discharged through the filter bed in the circulation tank and recirculating it using a circulation pump was applied.

At this time, the filtrate is provided with a filtrate circulating tank 40 and a filtrate aeration tank 50 having an available capacity of 15 m 3 or more for the purpose of increasing the treatment efficiency of the filtration tank 20 when processing 10 to 15 m 3 per day.

In the filtered water circulation tank 40 and the filtered water aeration tank 50, the respective supply pipes 44 and 53 connected to the aeration facility for aeration of the filtered water, that is, the blower 61, are arranged. The filtered water recycle pump has a capacity capable of circulating the total throughput (10-15 m 3) 2 to 20 times per hour.

At this time, the filtrate circulating tank 40 and the filtrate aeration tank 50 were installed in the basement of the vicinity of the filtration tank 20 in consideration of the heat treatment cost. Therefore, it was possible to reduce costs and minimize the space occupied by the system, thereby reducing the initial investment cost.

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

1 is a schematic diagram of a wastewater and livestock manure filtration system according to the present invention, Figure 2 is a front configuration diagram for explaining the working mechanism of the wastewater and livestock manure filtration system according to the present invention, Figure 3 according to the present invention As a partial cross-sectional view for explaining the internal configuration of the wastewater and livestock manure filtration system,

In the present invention, first, wastewater and livestock manure containing solids are added to the solid-liquid separator 10 to separate solids and liquids (hereinafter referred to as raw water), and the solids are discharged to a solids storage tank (not shown). Raw water is to be stored in the raw water storage tank 30 through the raw water pipe (35).

In this way, the raw water stored in the raw water storage tank 30 operates the pump 31 and is supplied to the filtration tank 20 filled with the filter medium (chaff) through the supply pipe 32. The filter medium filled in the filtration tank 20 is automatically introduced using the filter inserter 70.

Thereafter, the raw water introduced into the filtration tank 20 is subjected to the filtration process while moving along the filter media layer. The filtration tank 20 receives air from the compressor (hereinafter referred to as air) from the compressor 60 to create conditions suitable for growing aerobic microorganisms, and to prevent the pressure and channeling of the media layer. Intermittent agitation is applied.

Filtrate in the primary filtration tank 20 purified by the above step is supplied to the filtrate circulating tank 40 through the discharge pipe 46 and the supply pipe 44 from the blower 61 to the filtrate supplied to the filtrate circulating tank 40 Supply air through the) and undergoes a two-step process of aeration and treatment of the filtered water in the filtered water circulation tank 40.

After the second step is completed, the filtered water in the filtrate circulating tank 40 is operated again by the pump 41 to recycle to the filtration tank 20 through the supply pipe 42, and the filtration tank 20 undergoes a filtration process while blowing air in the filtration tank 20. After that, the process is re-supplied to the filtered water circulating tank 40 again.

When the filtrate is supplied into the filtrate circulating tank 40 by the step 3, the air is supplied from the blower 61 through the supply pipe 44 in the same manner as in the second step, and the filtrate in the filtrate circulating tank 40 is aerated. There are four steps.

When the filtrate in the filtrate circulating tank 40 is treated by the above four steps, the pump 48 is operated to supply the filtrate aeration tank 50 through the supply pipe 49, and the treatment in the supplied filtrate aeration tank 50 is performed. The water is subjected to the aeration process using the air supplied from the blower 61 through the supply pipe 53.

The liquid in the filtered water aeration tank 50, which has passed all the above steps, has been filtered and treated, and this is done by operating the pump 51 and discharging it to the destination through the discharge pipe 52.

Reference numerals 33, 43, 45, 47, 54 and 61 are valves installed in respective pipes and are off when not in use and on when in use.

However, the rotation of the filtration tank 20 is made according to the operation of the motor (M) installed on one side of the filtration tank 20 and the support of the filtration tank 20 is predetermined by the support 23 installed in the lower basement of the filtration tank. It is tilted and securely supported.

Moreover, the inclination of the filtration tank 20 can be adjusted to 5 to 55 degrees by connecting the cylinder 24 to the bottom of the filtration tank 20. The reason is to improve the stirring power of the filter medium and raw water. However, since the braid 21 is installed in the filtration tank 20 to maintain a constant interval, stirring of the filter medium and raw water takes place effectively.

In addition, the support 23 was installed in the basement because the reason is to increase the height of the filtration tank 20 to a minimum, and the blower pipe 22 installed to maintain a constant interval in the filtration tank 20 supplies air uniformly. To induce aerobic decomposition of raw water.

In addition, one side of the filtration tank 20 is provided with a closed lid 25, the screen support 26 and the screen mesh 27, the reason is to prevent the filter medium is discharged when the raw water is discharged. The screen support 26 has a hole size of 1 to 10 mm and a screen mesh 27 of 10 to 100 mesh.

The final treatment water discharged to the destination by the above method can be used as a liquid fertilizer or as a wash water for the barn to save water resources, and to solve problems such as deterioration of physical properties of the farmland or accumulation of soil salts due to the use of chemical fertilizers. There are advantages to it.

In addition, considering the current situation in Korea, where proper manure production and spreading techniques are not accumulated, which makes it difficult to put livestock manure into practical use, its importance is more important in terms of establishing the technology for utilizing manure using pure domestic technology. would.

The present invention as described above can be expected to sterilize germs or weed seeds due to the heat of decomposition generated during the aerobic decomposition of organic matter accumulated in the filter medium can reduce the filtered water to the soil in a stabilized liquid ratio, the filtered water to wash water Because it can be used as a water saving resource can reduce the production cost of livestock farms.

In addition, turbidity and odor of liquid fertilizer is eliminated in a considerable amount of treatment, thereby eliminating dissent from neighboring residents, and because it is processed under artificial conditions, the composition of liquid fertilizer is more convenient than the conventional storage liquid fertilization method. It works.

In addition, since the system of the present invention is compact, installation and management of the system is easy, and space utilization is good, the limit of selecting a site on which the system is to be installed is small, and the height is low.

Claims (12)

Raw water storage tank 30 for receiving and storing the raw water separated from the solid-liquid separator 10; A filtration tank 20 for filtering raw water stored in the raw water storage tank while blowing and intermittently rotating in a state in which a filter medium is filled; A filtered water circulating tank (40) for receiving filtered filtration water from the filtration tank and recycling the filtered water to the filtration tank; A filtrate aeration tank (50) which receives filtrate in the filtrate circulation tank and induces aerobic decomposition while aeration of the filtrate; Compressor 60 responsible for blowing air to the filtration tank and a blower 61 for aeration of the filtration water circulation tank and the filtration water aeration tank and a filter feeder 70 for supplying the filter medium to the filtration tank; wastewater and livestock manure filtration characterized in that it comprises a Processing system. The waste water and livestock manure filtration treatment according to claim 1, wherein the raw water storage tank and the filtered water circulating tank are provided with respective supply pipes 32 and 42 provided with pumps 31 and 41 for supplying raw water and filtered water to the filtration tank. system. The wastewater and livestock manure filtration system according to claim 1, wherein the filtration tank, the filtration water circulation tank, and the filtration water aeration tank are provided with respective supply pipes for supplying air supplied from the compressor (60) and the blower (61). The wastewater and livestock manure filtration system according to claim 1, wherein the filtration tank support, the filtration water circulation tank, and the filtration water aeration tank are provided underground. 2. The discharge pipes 49 and 52 of claim 1, wherein each of the pumps circulating and filtration tanks is provided with respective pumps 48 and 51 for pumping the filtration water in the filtration water circulation tank into the filtration water aeration tank and pumping the filtration water in the filtration water aeration tank to the outside. Wastewater and livestock manure filtration system, characterized in that is provided. The wastewater and livestock manure filtration system according to claim 1, wherein a braid (21) and a blower pipe (22) are installed at predetermined intervals along the inner wall of the filtration tank. The wastewater and livestock manure filtration system according to claim 1, wherein the filter medium supplied to the filtration tank is a non-combustible and hardly degradable material that is not crushed or leached, and is a non-toxic material having a rough surface and a light weight. The wastewater and livestock manure filtration system according to claim 1, wherein the filtration tank is installed to have a predetermined slope, and a support (23) and a cylinder (24) are installed at the bottom of the filtration tank installed to have a predetermined slope. 9. The wastewater and livestock manure filtration system according to claim 8, wherein the support and the cylinder installed at the bottom of the filtration tank are located underground. The wastewater and livestock manure filtration system according to claim 1, wherein the filtration tank is a sealed structure and its form is any one of ready-mixed concrete, elliptical, and cuboid type. The method of claim 1, wherein the filtration tank is provided with a lid 28 which can be opened and closed at one end and the screen support 26 and the screen mesh 27 and the opening and closing lid 25 is sequentially installed on the other side. Wastewater and livestock manure filtration systems. A first step of filtering raw water separated from the solid-liquid separator while blowing air and intermittent rotation to the filter tank filled with the filter medium; A second step of supplying the filtrate in the filtrate filtered in the first step to a filtrate circulating tank and inducing aerobic decomposition while aeration of the filtrate circulating tank; A third step of performing filtration under aerobic conditions by blowing air in the filtration tank while recirculating the filtration water in the filtration tank to the filtration tank in parallel with the second step; A fourth step of supplying the filtrate filtered in the third step to the filtrate circulating tank again and inducing aerobic treatment while aeration of the filtrate circulating tank; A fifth step of inducing aerobic decomposition while aeration of the filtrate treated in the fourth step in the filtrate aeration tank and discharging the final treated water to a subsequent process or farmland; wastewater and livestock manure filtration treatment method .