KR20170028077A - Soil cover type apparatus and method for purifying feces and urine - Google Patents

Abstract

The present invention relates to a soil-covered type apparatus and method for purifying feces and urine, which in applying a soil purification method to treat highly concentrated organic wastewater, minimizes the number of unit processes required to treat highly concentrated organic wastewater, and simplifies the design of a reaction chamber to thereby improve the treatment efficiency of highly concentrated organic wastewater and promote the ease of installation. The soil-covered type apparatus for purifying feces and urine comprises a first composite reaction chamber and a second composite reaction chamber, wherein the first composite reaction chamber is configured to include a first precipitation chamber, a second precipitation chamber, and a sludge storage chamber, whereas the second composite reaction chamber is configured to include a first aeration chamber, a third precipitation chamber, a second aeration chamber, and a discharge filtration chamber. A wastewater guide pipe is vertically disposed on one side of each of the reaction chambers constituting the first composite reaction chamber (the first precipitation chamber, the second precipitation chamber, and the sludge storage chamber) and the second composite reaction chamber (the first aeration chamber, the third precipitation chamber, the second aeration chamber, and the discharge filtration chamber),, and a filtration layer and a porous soil layer are sequentially layered on the first composite reaction chamber and the second composite reaction chamber, excluding the areas in which the wastewater guide pipes are installed.

Description

[0001] The present invention relates to a soil-type manure purification apparatus and method,

The present invention relates to an apparatus and method for purifying soil-type manure, and more particularly, to a method and apparatus for purifying a soil-covered manure by minimizing the number of unit processes required for treatment of high concentration organic wastewater, The present invention relates to a soil-coated type manure purification apparatus and method which can simplify the design of the soil-type manure purification system, and improve the treatment efficiency of the high-concentration organic wastewater and simplify the installation.

Manure, livestock manure, etc. are high concentration organic wastewater. Because it contains a large amount of nutrient salts, when it is released into the water system in an untreated state, it will accelerate the eutrophication of rivers and lakes and destroy the aquatic ecosystem.

Biological treatment methods and physicochemical treatment methods are applied for treatment of high concentration organic wastewater. Conventional purification tank systems for treating high concentration organic wastewater generally consist of a flow rate tank, a reaction tank, a settling tank, and a discharge tank 1192378). Further, in the conventional purification system, the reaction tank is generally operated in the form of an aeration tank, and aerobic microorganisms are installed in the aeration tank to induce biodegradation of the pollutant (see Korean Patent No. 1025927).

Since the septic tank system is mainly installed in the residential area, the installation area is not large and the structure of the apparatus is relatively simple. Therefore, a processing efficiency higher than a certain level is required under a simple device configuration. In order to improve the treatment efficiency of the septic tank system, the solid-liquid separation characteristic must first be excellent. However, in the case of the conventional septic tank system, the sedimentation tank and the flow tank which perform the solid-liquid separation function are constituted by a single set in the longitudinal direction, which is disadvantageous in that the solid-liquid separation characteristic is poor. Further, when an aerobic microorganism is applied to the aeration tank, the microorganisms are lost to the water system, causing another contamination due to microorganisms and destruction of ecosystem.

On the other hand, there is a soil purification method among the methods of treating wastewater. The soil remediation method utilizes the organic degradation power of the soil ecosystem of the soil microorganism soil prototype protozoa and soil plant rhizome existing in the soil in the decomposition of pollutants of the wastewater, and the soil- And wastewater infiltration into the soil is known as a typical soil remediation method.

Specifically, the soil-covered contact oxidation method is completed by covering soil on top of a reaction tank such as a precipitation separation tank, a flow rate adjusting tank, and an activated sludge treatment tank, and forming a green zone on the soil. In addition to the artificial anaerobic and aerobic processes, Decomposition of organic matter by microorganisms, supply of nutrients required for green growth, and the like can be expected. The present applicant has filed a patent application for a natural wastewater treatment device of soil covering type through Korean Patent Publication No. 2004-65091. In the case of the soil-covered wastewater treatment device, it is necessary to consider that it is installed at the lower surface of the earth, so that the structure of the apparatus is complicated and installation work is difficult.

Korean Patent No. 1192378 Korea Patent No. 1025927 Korean Patent Publication No. 2004-65091

Disclosure of the Invention The present invention has been devised to solve the problems as described above, and it is an object of the present invention to minimize the number of unit processes required for treatment of high concentration organic wastewater by treating soil wastewater with high concentration organic wastewater, Thereby improving the treatment efficiency of the high concentration organic wastewater and simplifying the installation. The object of the present invention is to provide a soil-coated type manure purification apparatus and method.

In order to accomplish the above object, the soil-coated manure purification apparatus according to the present invention comprises a first complex reaction tank and a second complex reaction tank, wherein the first complex reaction tank includes a first settling tank, a second settling tank and a sludge storage tank Wherein the second complex reaction tank comprises a first aeration tank, a third settling tank, a second aeration tank and a discharge filtration tank, wherein each of the reaction tanks (the first settling tank, the second settling tank, A sludge storage tank) and a sludge guide pipe vertically arranged on one side of each of the reaction tanks (the first aeration tank, the third aeration tank, the second aeration tank, and the discharge filtration tank) constituting the second composite reaction tank, The first composite reaction tank and the second composite reaction tank are sequentially laminated with a filter material layer and a porous soil layer.

The first complex reaction tank has a cylindrical shape, and the first partition wall is disposed to cross the diameter of the first complex reaction tank on a plane basis to separate the regions of the first and second settling tanks. The second sidewall concentric with the periphery of the first complex reaction tank may be disposed in the sludge storage tank.

The second composite reaction tank has a cylindrical shape and three third partition walls are provided in the radial direction of the first composite reaction tank on a plane basis to provide a region of the first aeration tank, the second aeration tank, and the discharge filtration tank, A fourth partition wall concentric with the periphery of the second complex reaction tank may be disposed at the center of the sludge storage tank.

The wastewater guide pipe disposed in each of the reaction tanks constituting the second composite reaction tank is in the form of a pore having a perforated side. In addition, the depth of the filter material layer disposed in each reaction tank of the second composite reaction tank may correspond to the depth of the wastewater guide pipe.

The first settling tank, the second settling tank, the sludge storage tank, the third settling tank, and the discharge filtration tank are operated under anaerobic conditions, and the first aeration tank and the second aeration tank are operated under aerobic conditions.

Further, the anaerobic microorganisms adhere to and grow in the filter medium layer provided in the first settling tank, the second settling tank, the sludge storage tank, the third settling tank and the discharge filtration tank, and aerobic microorganisms adhere to the filter media of the first aeration tank and the second aeration tank , And grow.

The first aeration tank, the second aeration tank, the third settling tank, and the discharge filtration tank are further provided with a sludge conveying pipe for conveying the sludge to the sludge storage tank, and the aeration tank is further provided in the first aeration tank and the second aeration tank. At the same time, each reaction tank constituting the first complex reaction tank and each reaction tank constituting the second composite reaction tank are connected through a sewage pipe.

The first settling tank separates the organic wastewater and the sludge supernatant transferred from the sludge storage tank into a first solid-liquid separation, anaerobic digestion and decomposition and denitrification, and the second settling tank receives the supernatant of the first settling tank, And the supernatant is supplied to the first aeration tank through the solid-liquid separation, the organic material contained in the supernatant of the second settling tank is subjected to a nitrification process to induce nitrification of the ammonia nitrogen and filtered through the filter medium layer, The third settling tank performs solid-liquid separation of the filtered water of the first aeration tank and induces denitrification, and the second aeration tank extinguishes and filters the contaminants through the attached microorganisms of the filter medium layer by treating the supernatant of the third settling tank with a second- The outlet filtration tank induces the final denitrification under the anaerobic condition to filter the filtered water in the second aeration tank and discharge it.

The method of purifying soil-type manure according to the present invention comprises the steps of: denitrifying the organic wastewater and the sludge supernatant transferred from the sludge storage tank together with solid-liquid separation in the first settling tank; The supernatant of the first settling tank is supplied to the second settling tank to be solid-liquid separated, and the separated supernatant is transferred to the first aeration tank; The supernatant of the second settling tank is aerated by the first aeration tank and is filtered by the filter medium layer in the first aeration tank; Separating the filtered water of the first aeration tank into a denitrification with solid-liquid separation by a third settling tank; The supernatant of the third settling tank is aerated by the second aeration tank and is filtered by the filter medium layer in the second aeration tank; And the filtered water in the second aeration tank is finally filtered and discharged to the outside in the discharge filtration tank.

The apparatus and method for purifying soil-covered manure according to the present invention have the following effects.

The first complex reaction tank and the second complex reaction tank are combined to constitute the manure purifying apparatus and each complex reaction tank is divided into a plurality of regions and a unit process is performed in each region to simplify the structure of the apparatus, The efficiency can be improved. In addition, since the first complex reaction tank and the second complex reaction tank constitute the manure purifying apparatus, the installation work can be facilitated.

1 is a plan view of a soil-covered manure purification apparatus according to an embodiment of the present invention;
BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a soil-

The present invention proposes a technique for treating highly concentrated organic wastewater by progressing sequentially the precipitation, aeration and sludge filtration processes based on two complex reactors.

Each composite reaction tank is divided into a plurality of areas, and a unit process of precipitation, aeration, and sludge filtration is performed in each area. The upper part of each composite reaction tank is coated with soil, and a specific region of the composite reaction tank may be provided with a soil having soil microorganisms carried thereon. It is possible to filter the total solids (SS) and decompose the organic matter by soil microorganism through the culture soil bearing the soil microorganism.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an apparatus and method for purifying soil-coated manure according to an embodiment of the present invention will be described in detail with reference to the drawings.

Referring to FIGS. 1 and 2, a soil-coated manure purification apparatus according to an embodiment of the present invention includes a first complex reaction tank 100 and a second complex reaction tank 200. The precipitation, aeration, and sludge filtration processes for high-concentration organic wastewater are progressed in a time-series manner based on the combination of the first complex reaction tank 100 and the second composite reaction tank 200. Each of the first complex reaction tank 100 and the second complex reaction tank 200 is divided into a plurality of regions, and a unit process is performed in each region.

First, the first complex reaction tank 100 is divided into a first settling tank 110, a second settling tank 120, and a sludge storage tank 130. The area of the first settling tank 110, the area of the second settling tank 120, and the area of the sludge storage tank 130 are spatially separated by the partition walls. In the case where the first complex reaction tank 100 has a cylindrical shape, the first partition wall 1 is arranged to cross the diameter of the first complex reaction tank 100 on a plane basis to form a first settling tank 110, And a second partition wall 2 concentric with the periphery of the first complex reaction vessel 100 is disposed at the center of the first complex reaction vessel 100 so that the area of the sludge storage vessel 130 is divided .

The structure of the first settling tank 110, the second settling tank 120, and the sludge storage tank 130 will be described below.

A wastewater guide pipe 10 is arranged in the vertical direction within the first settling tank 110 on the basis of a side end face (or a front end face) of the first complex reaction tank 100. The wastewater guide pipe 10 serves to guide the sludge high-grade water conveyed from the organic wastewater supply pipe 111 and the sludge storage tank 130 into the lower space of the first settling tank 110, Is connected to one side of the waste water guide pipe (10). An optional detachable inspection plate 11 is provided at the upper end of the wastewater guide pipe 10 and an inspection plate 11 can be used as an inflow end. For reference, the inspection plate 11 is mounted on the upper end of all sewage guide pipes 10 to be described later.

In addition, the first settling tank 110 is provided with a collection tank 20 and a sewage pipe 30. Like the wastewater guide pipe 10, the collecting unit 20 is disposed in the first settling tank 110 in the vertical direction, and is a space where the supernatant separated by the solid-liquid separation is collected. The sewer piping 30 is connected to one side of the collecting unit 20 and transfers the supernatant collected in the collecting unit 20 to the second collecting unit 120.

The organic wastewater flowing downward into the first settling tank 110 through the wastewater guide pipe 10 (and the sludge high-grade water conveyed from the sludge storage tank 130) is separated into a supernatant and a precipitate by gravity sedimentation, When the level of the supernatant in the collecting tank 20 reaches the pond pipe 30, the supernatant is transferred to the second settling tank 120 through the pond pipe 30, .

A porous material layer 41 and a porous material layer 41 are sequentially stacked on the upper end of the first settling tank 110 except for the area where the waste water guide pipe 10 and the collecting cores 20 are provided. More specifically, a mesh network type filter medium layer support 41 is provided at the upper end of the first settling tank 110 except for the region where the sewage water guide pipe 10 and the water collecting corpuscle 20 are provided. And a porous soil layer 41 is provided on the top of the filter material layer 41. The porous soil layer 41 is formed on the base material layer 41, The porous soil layer 41 is provided between the filter material layer 41 and the porous soil layer 41 to prevent the soil of the porous soil layer 41 from flowing into the filter material layer 41. On the porous soil layer 41, Of plants are vegetated. In addition, the filter material layer 41 is made of granules rather than the porous soil layer 41, and may be formed of a crushed stone as an embodiment.

The filter material layer 41 functions to filter the solid matter suspended in the supernatant water and provides the space for attachment and growth of the anaerobic microorganisms, thereby enabling decomposition of the organic solid material by the anaerobic microorganisms. On the other hand, in the food chain structure of the anaerobic microorganisms, the anaerobic microorganisms are located at the bottom, and the earthworms are located at the top. The earthworms consuming the anaerobic microorganisms through the food chain migrate between the filter media layer 41 and the porous soil layer 41 The nutrients of the plant growing on the porous soil layer 41 are supplied to the porous soil layer 41 together with the excrement.

The structure of the second settling tank 120 is basically the same as that of the first settling tank 110. A sewage guide pipe 10 is provided in the second settling tank 120 in the same manner as the first settling tank 110. A sewage pipe 30 having one end connected to the first settling tank 110 is connected to one side of the sewage guide pipe 10, And a collecting unit 20 and a sewer piping 30 are provided on the other side of the second settling tank 120 in the same manner as the first settling tank 110. In addition, a filter medium layer 41 and a porous soil layer 41 are sequentially stacked on the upper part of the second settling tank 120 except for the area where the sewage guide pipe 10 and the collecting cores 20 are provided, The function of the filter medium layer 41 is the same as that of the filter medium layer 41 of the first settling tank 110. The depth of the material layer 41 of the second settling tank 120 is different from that of the material layer 41 of the first settling tank 110. The depth of the material layer 41 of the second settling tank 120 is designed to be deeper than that of the material layer 41 of the first settling tank 110. The reason that the filter material layer 41 of the second settling tank 120 is deeper than the filter material layer 41 of the first settling tank 110 is that the size of the organic solid floating in the supernatant of the second settling tank 120 is larger than that of the first settling tank 110. [ The depth of the filter material layer 41 of the second settling tank 120 is set to be smaller than the depth of the first settling tank 110 because the organic material of the first settling tank 110 is smaller than the organic solid material of the second settling tank 120, It can be designed deeper than the material layer 41.

When the supernatant of the first sedimentation tank 110 flows into the second sedimentation tank 120, it is separated into the sediment and the supernatant again in the second sedimentation tank 120. The separated supernatant is separated into the sediment 20 and the sewage line 30, And then transferred to the first aeration tank 210 of the second complex reaction tank 200.

Next, the sludge storage tank 130 separates the sludge conveyed from the second complex reaction tank 200 into concentrated sludge and sludge equalizing water, and transfers the separated sludge equalizing water to the first settling tank 110 do. The sludge storage tank 130 is provided with a sludge guide pipe 10 and a sludge conveyance pipe 30 which are the same as the sewage guide pipe 10 and the sewage pipe 30 of the first settling tank 110 and the second settling tank 120, . At the upper end of the sludge storage tank 130 except for the area where the sludge guide pipe 10 is provided, a filter medium layer 41 and a porous soil layer 41 are sequentially stacked.

Unlike the first settling tank 110 and the second settling tank 120, the sludge storage tank 130 is not provided with the collecting pool 20, and the sludge supernatant separated from the sludge storage tank 130 is separated into the filter layer 41, And then discharged through the sludge conveying pipe. The sludge supernatant discharged through the sludge transport pipe is returned to the first settling tank (110). The sludge storage tank 130 is operated under anaerobic conditions like the first and second settling tanks 110 and 120.

Both the first settling tank 110 and the second settling tank 120 basically separate the precipitate and the supernatant through solid-liquid separation. The first settling tank 110 and the second settling tank 120 function as follows. In addition, the first settling tank 110 and the second settling tank 120 decompose the organic solid matter through the anaerobic microorganisms suspended in the settling tank, and remove the nitrate nitrogen (NO ₃ -N) contained in the organic wastewater by denitrification . The reason why denitrification of nitrate nitrogen (NO ₃ -N) by the first settling tank 110 and the second settling tank 120 is possible is that the nitrified nitrate (NO ₃ -N) in the first aeration tank 210 and the second aeration tank 230 Nitrogen (NO ₃ -N) is transferred to the sludge storage tank 130 and the sludge supernatant of the sludge storage tank 130 is supplied to the first settling tank 110 and the second settling tank 120, (NO _{3 -} N) in the second sedimentation tank 110 and the second sedimentation tank 120 is extinguished as an energy source of the denitrifying microorganism.

The sludge containing nitrate nitrogen (NO ₃ -N) is transferred from the sludge storage tank 130 to the first settling tank 110 by being transferred to the sludge storage tank 130 from the second complex reaction tank 200 (including the aeration tank) And nitrate nitrogen (NO ₃ -N) is contained in the sludge supernatant.

The first complex reaction tank 100 has been described above, and the second complex reaction tank 200 has the following structure.

The second complex reaction tank 200 is divided into a first aeration tank 210, a third settling tank 220, a second aeration tank 230, and an outlet filtration tank 240. The areas of the first aeration tank 210, the third settling tank 220, the second aeration tank 230, and the outlet filtration tank 240 are spatially separated by the partition walls. In the case where the second complex reaction tank 200 has a cylindrical shape, three third partition walls 3 are provided in the radial direction of the first complex reaction tank 100 on a plane basis to form a first aeration tank 210, a second aeration tank 230 and an outlet filtration tank 240. A fourth partition wall 4 concentric with the periphery of the second complex reaction vessel 200 is disposed in the center of the second complex reaction vessel 200 to communicate with the sludge storage tank 130 ) Can be distinguished.

The structures of the first aeration tank 210, the third settling tank 220, the second aeration tank 230, and the outlet filtration tank 240 will be described below. The first aeration tank 210, the third settling tank 220, and the second aeration tank 230 are similar to each other on the side end face (or front end face) of the first complex reaction tank 100.

A wastewater guide pipe 10 of a type similar to the wastewater guide pipe 10 of the first settling tank 110 (or the second settling tank 120) is disposed in the first aeration tank 210, And a waste water pipe 30 extending from the second settling tank 120 is provided at one side of the waste water guide pipe 10. In addition, the first aeration tank 210 is provided with a collection tank 20 and a sewer piping 30. The water collection tank 20 is disposed in the first aeration tank 210 in a vertical direction and is a space in which the filtered water of the first aeration tank 210 that has passed through the filter material layer 41 is collected. The sewage pipe 30 is connected to one side of the water collecting unit 20 and transfers the filtered water of the first aeration tank 210 collected in the water collecting unit 20 to the third settling tank 220 .

The first aeration tank 210 except for the area where the waste water guide pipe 10 and the sewer pipe 30 are provided is provided with a filter layer 41 and a porous soil layer 41 sequentially stacked. Unlike the first settling tank 110 and the second settling tank 120, the filter material layer 41 of the first aeration tank 210 is provided to a depth of the sewage guide pipe 10 and is provided in the first aeration tank 210 The sewage guide pipe 10 has a shape of a pierced pipe whose surface is perforated. In addition, an air diffuser for supplying air into the first aeration tank 210 is provided in the lower space of the first aeration tank 210.

When the supernatant of the second settling tank 120 is supplied into the first aeration tank 210 and air is injected through the aeration tube, the ammonia nitrogen in the supernatant is nitrified to nitrate nitrogen. At this time, aeration of the aeration tube proceeds toward the lower portion of the first aeration tank 210, so that the upper water in the first aeration tank 210 flows upward toward the waste water guide pipe 10, Is moved to the filter material layer 41 through the perforations of the side of the waste water guide pipe 10. The supernatant which is moved to the filter medium layer 41 is filtered by the filter medium layer 41 and decomposed by the aerobic microorganisms attached to the filter medium layer 41 and growing. In this process, phosphorus (P) contained in the supernatant is ingested and removed by aerobic microorganisms. The filtered water of the first aeration tank 210 which has passed through the filter medium layer 41 is collected in the collecting filter 20 and supplied to the third settling tank 220 through the sewage pipe 30.

The structure of the third settling tank 220 is basically the same as that of the first aeration tank 210 except that the third settling tank 220 is not provided with the diffuser 20 and the accumulator 20.

When the filtered water in the first aeration tank 210 is supplied into the third settling tank 220, the third settling tank 220 is operated under an anoxic condition. The filtered water is separated into a supernatant liquid and a supernatant liquid under anaerobic conditions. 10 through the perforations formed on the sides of the base material layer 41. The anaerobic microorganisms adhere to and grow in the filter medium layer 41 in the same manner as the filter media 41 of the first settling tank 110 (or the second settling tank 120). The filter media 41 filters the wastewater Organic matter is decomposed by anaerobic microorganisms. The supernatant of the third settling tank 220 that has passed upward through the filter media layer 41 is moved to the second aeration tank 230 via the collecting filter 20 and the sewer piping 30.

The second aeration tank 230 receives the supernatant of the third sedimentation tank 220 and exhalates the same, and its configuration and operation are the same as those of the first aeration tank 210. As the two-stage aeration process proceeds through the first aeration tank 210 and the second aeration tank 230, the phosphorus ingestion and nitrification effects are doubled, and the filtered water in the second aeration tank 230 is returned to the outlet filtration tank 240 Lt; / RTI >

Lastly, the discharge filtration tank 240 functions to perform filtration of the filtered water in the second aeration tank 230 and perform solid-liquid separation under anoxic condition to finally discharge the supernatant. The structure of the discharge filtration tank 240 is basically the same as that of the above- 3 sedimentation tank 220. Unlike the third sedimentation tank 220, the sedimentation filtration tank 240 may further include a collecting filter 20.

A sludge return pipe is provided in each of the first aeration tank 210, the third settling tank 220, the second aeration tank 230, and the discharge filtration tank 240, and the sludge Is transferred to the sludge storage tank (130) of the first complex reaction tank (100). In the sludge conveyance using the sludge return pipe, pressurized air may be applied to the sludge return pipe to transfer the sludge in the reaction tank through the sludge return pipe.

The first composite reaction tank 100 and the second composite reaction tank 200 have been described above and the processing operations of organic wastewater under the bases of the first complex reaction tank 100 and the second composite reaction tank 200 are summarized Then,

When the organic wastewater (and the sludge supernatant transferred from the sludge storage tank 130) is supplied to the first settling tank 110 of the first complex reaction tank 100, the first settling tank 110 operated in an anoxic condition, Liquid separation, and the supernatant is transferred to the second settling tank 120. The second settling tank 120 is also operated under anaerobic conditions and solid-liquid separation by gravity settling proceeds again. At this time, as the first settling tank 110 and the second settling tank 120 are operated under anaerobic conditions, denitrification reaction of the organic wastewater proceeds and is included in the supernatant of the first settling tank 110 and the second settling tank 120 Organic solids are decomposed by the anaerobic microorganisms attached to the filter medium layer 41 and supplied to the nutrient source of the planted vegetation in the porous soil layer 41.

The supernatant of the second settling tank 120 is transferred to the first aeration tank 210 of the second complex reaction tank 200. The first aeration tank 210 is operated under exhalation conditions to nitrate the supernatant of the second settling tank 120 The aerobic microorganisms attached to the filter layer 41 are activated to remove and remove phosphorus through the aerobic microorganisms and the aerobic microorganism excrements are supplied to the vegetation of the planted plants in the porous soil layer 41.

The supernatant of the second settling tank 120 is transferred to the first aeration tank 210 of the second complex reaction tank 200. The first aeration tank 210 is operated under exhalation conditions to nitrate the supernatant of the second settling tank 120 Thereby activating the aerobic microorganisms attached to the filter material layer 41 to ingest and remove phosphorus through aerobic microorganisms. Aerobic microorganisms that are exaggerated by organic digestion are digested by the soil protozoan, ie, earthworm feed, and the protozoan of the soil protozoa is fed to the soil nutrient source of vegetated rhizosphere in the porous soil layer (41) It is a natural purification process by the structure of food pyramid by chain.

The filtered water that has passed through the filter medium layer 41 of the first aeration tank 210 is sent to the third settling tank 220 operated under the anaerobic condition and denitrified in the third settling tank 220, And the organic material decomposition by the anaerobic microorganisms of the filter material layer 41 proceeds. The supernatant of the third settling tank 220 is supplied to the second aeration tank 230 to perform the same mechanism as that of the first aeration tank 210. The filtered water of the second aeration tank 230 is supplied to the outlet filtration tank 240, And is discharged to the outside through final filtration by the filter medium layer 41 and denitrification.

In order to process the sludge accumulated in the second complex reaction tank 200 (the first aeration tank 210, the third settling tank 220, the second aeration tank 230, and the discharge filtration tank 240) The sludge of the second complex reaction tank 200 is transferred to the sludge storage tank 130 of the first complex reaction tank 100 at intervals and the supernatant water in the sludge storage tank 130 is supplied to the first sedimentation tank 110, The denitration process by the first settling tank 110 and the second settling tank 120 is applied.

As described above, the soil-covered manure purification apparatus according to the present invention comprises a combination of the first complex reaction tank 100 and the second complex reaction tank 200, and the first complex reaction tank 100 and the second composite reaction tank 200 are divided into a plurality of regions and each region performs a specific unit process so that the structure of the apparatus can be simplified and the organic wastewater can be supplied through the porous material layer 41 and the porous soil layer 41 disposed in each region The biological treatment efficiency can be doubled.

1: first barrier rib 2: second barrier rib
3: third partition 4: fourth partition
10: sewage guide pipe 11: check plate
20: Housekeeping 30: Osuissan
41: filter medium layer 42: porous soil layer
100: first complex reaction tank 110: first sedimentation tank
120: second settling tank 130: sludge storage tank
200: second complex reaction tank 210: first aeration tank
220: third settling tank 230: second aeration tank
240: discharge filtration tank

Claims (11)

A first complex reaction tank and a second complex reaction tank,
The first complex reaction tank may include a first settling tank, a second settling tank, and a sludge storage tank,
The second complex reaction tank includes a first aeration tank, a third settling tank, a second aeration tank, and a discharge filtration tank,
(First aeration tank, second aeration tank, sludge storage tank) constituting the first complex reaction tank and each of the reaction tanks (first aeration tank, third aeration tank, second aeration tank, and discharge filtration tank) constituting the second composite reaction tank A wastewater guide pipe is vertically disposed on one side,
Wherein a filter medium layer and a porous soil layer are sequentially laminated on the first composite reaction tank and the second composite reaction tank except the region where the waste water guide pipe is disposed.
The method of claim 1, wherein the first complex reaction tank has a cylindrical shape,
The first partition wall is disposed in a shape that crosses the diameter of the first complex reaction tank on a plane basis to divide the area of the first settling tank and the second settling tank and is divided into a region concentric with the periphery of the first complex reaction tank at the center of the first complex reaction tank, Wherein the sludge storage tank is divided into a first sidewall and a second sidewall.
The method of claim 1, wherein the second complex reaction tank has a cylindrical shape,
A second aeration tank, and an outlet filtration tank are provided in the radial direction of the first complex reaction tank on the basis of a plane, and a region of the first aeration tank, the second aeration tank, Wherein the sludge storage tank is divided into an area of the sludge storage tank and an area of the sludge storage tank.
The soil-covering type manure-purification apparatus according to claim 1, wherein the wastewater guide pipe disposed in each reaction tank constituting the second composite reaction tank is in the form of a pipe having perforated sides.
The soil-covering type manure-purification apparatus according to claim 1, wherein the depth of the filter material layer disposed in each reaction tank of the second composite reaction tank corresponds to the depth of the sewage guide pipe.
The method of claim 1, wherein the first settling tank, the second settling tank, the sludge storage tank, the third settling tank, and the discharge filtration tank are operated under anaerobic conditions and the first aeration tank and the second aeration tank are operated under aerobic conditions. Closed manure purifier.
The method according to claim 1, wherein the anaerobic microorganisms adhere to and grow on the filter medium layer of the first settling tank, the second settling tank, the sludge storage tank, the third settling tank and the discharge filtration tank, Wherein an aerobic microorganism adheres and grows.
The sludge treatment system according to claim 1, further comprising a sludge conveyance pipe for conveying sludge to the sludge storage tank in the first aeration tank, the second aeration tank, the third sedimentation tank,
Wherein the first aeration tank and the second aeration tank are further provided with an acid pipe.
The method according to claim 1, wherein the first settling tank is formed by denaturing the organic wastewater and the sludge supernatant transferred from the sludge storage tank,
The second settling tank receives the supernatant of the first settling tank, performs solid-liquid separation to supply supernatant to the first aeration tank,
The first aeration tank exhales the supernatant of the second settling tank and filters through the filter medium layer,
The third settling tank separates the filtered water of the first aeration tank and denitrifies it,
The second aeration tank exhales the supernatant of the third settling tank and filters through the filter medium layer,
Wherein the effluent filtration tank finally filtrates and discharges filtered water from the second aeration tank.
The soil-covering type manure-purification apparatus according to claim 1, wherein each reaction tank constituting the first complex reaction tank and each reaction tank constituting the second composite reaction tank are connected through a sewage pipe.
A method for purifying manure using a soil-coated manure purification apparatus,
The soil-covered type manure purification apparatus comprises:
A first complex reaction tank and a second complex reaction tank,
The first complex reaction tank may include a first settling tank, a second settling tank, and a sludge storage tank. The second combined reaction tank may include a first aeration tank, a third settling tank, a second aeration tank, and a discharge filtration tank,
Each of the reaction vessels (the first aeration tank, the second aeration tank, the sludge tank) constituting the first complex reaction tank and the reaction tanks (the first aeration tank, the third aeration tank, the second aeration tank and the discharge filtration tank) constituting the second composite reaction tank It is connected through a sewage pipe,
A filter medium and a porous soil layer are sequentially stacked on the first and second composite reaction tanks except for the area where the waste water guide tube is disposed,
The organic wastewater and the sludge supernatant transferred from the sludge storage tank are subjected to solid-liquid separation and denitrification in the first settling tank;
The supernatant of the first settling tank is supplied to the second settling tank to be solid-liquid separated, and the separated supernatant is transferred to the first aeration tank;
The supernatant of the second settling tank is aerated by the first aeration tank and is filtered by the filter medium layer in the first aeration tank;
Separating the filtered water of the first aeration tank into a denitrification with solid-liquid separation by a third settling tank;
The supernatant of the third settling tank is aerated by the second aeration tank and is filtered by the filter medium layer in the second aeration tank; And
Wherein the filtered water in the second aeration tank is finally filtered and discharged to the outside in the discharge filtration tank.

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