JP2006314991A - Apparatus and method for treating high-concentration nitrogen-containing dirty waste water such as waste water from livestock farmer and excreta - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus and a method for treating high-concentration nitrogen-containing dirty waste water such as waste water from a livestock farmer and excreta by which denitrification and dephosphorization are performed effectively. <P>SOLUTION: The apparatus for treating high-concentration nitrogen-containing dirty waste water such as waste water from the livestock farmer and excreta is composed of a screen tank 10, a flow rate adjustment tank 20, an aeration tank 70, a tank for concentrating generated sludge and an anaerobic treatment tank 50. The anaerobic treatment tank 50 is formed in the aeration tank 70 by arranging a partition wall 52 in the upper side part of the aeration tank 70 and allowing the lower part of the anaerobic treatment tank to communicate with the aeration tank 70. An agitator 80 which is rotated at a high or low speed and has multistage impellers 81 is arranged in the anaerobic treatment tank 50. An air jetting spout 110 is arranged in the lower part of the aeration tank 70. An oval pellet vessel 120 filled with an active microbe derivative is arranged above the air jetting spout. The inside of the aeration tank is kept in such an aerobic state that proper oxygen partial pressure is kept to oxidize and decompose a contaminant. Organic matter, nitrogen and phosphorus are removed in an anaerobic state. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention integrally forms an anaerobic tank in which a sludge layer is formed in an aeration tank to oxidize and decompose pollutants in an aerobic state, and then in facultative anaerobic and anaerobic conditions. Removal of organic substances and nitrogen, and removal of sludge with excessive intake of phosphorus simultaneously removes phosphorus, depending on the properties of wastewater containing high concentrations of nitrogen such as livestock wastewater and manure, and the quality of treated water required. By repeating the above process in one step or multiple steps, the processing efficiency is improved, and in particular, the mesh of a stirrer installed in the anaerobic tank or the bar-shaped impeller is slowly driven to rotate at an anaerobic tank. Oval pellets filled with microbial activity inducers on the upper side of the air jets installed in order to supply oxygen necessary for treatment of the lower / waste water to the lower side of the aeration tank. pellet) container A wire mesh is formed on the lower and upper peripheral surfaces of the bottom, and the lower / waste water smoothly flows into and out of the pellet container to perform an agitation action, thereby causing an overall reaction inside the anaerobic tank and aeration tank. Treatment equipment for wastewater containing high concentrations of nitrogen, such as livestock wastewater and manure, which can easily manage anaerobic sludge while treating pollutants and discharging nitrogen gas easily It relates to a processing method.

In general, in various known sewage and wastewater treatments, organics contained in sewage / wastewater are used to prevent the induction of green algae and red tides by nutrients such as nitrogen and phosphorus. Along with the removal of materials, the removal of nutrients such as nitrogen and phosphorus is also required.

Accordingly, the sewage and wastewater treatment purifies and discharges the sewage and wastewater through a predetermined sewage and wastewater treatment device. At this time, the generated sludge passes through an anaerobic digestion process or a concentration process. After dehydration through a predetermined dehydration method, landfill or incinerate.

For the conventional sewage / waste water treatment apparatus and method related to the above-mentioned technology, the present applicant has been patent-registered in Korean Patent No. 10-0369924.

That is, as shown in FIG. 1 and FIG. 2, the technical configuration thereof is a screen tank 10 in which a raw water inlet 12 is formed on one side and a screen 11 is installed in the path, and a rear of the screen tank 10. A flow control tank 20 installed at the end to homogenize the water quality concentration of the sewage and adjust the outflow amount of the sewage, an aeration tank 70 that flows in the sewage and maintains an appropriate oxygen partial pressure, and the aeration tank 70 A concentration tank 90 for concentrating the generated sludge and a dehydrator 100 for dewatering the concentrated sludge to form a sludge cake are installed.

At this time, the partition wall 52 defining the anaerobic tank 50 is integrally formed on one side of the aeration tank 70 so that the upward vertical end thereof is positioned higher than the water surface of the lower / waste water. The partition wall 52 is inclined so as to be wider than the lower part, and the lower part of the partition wall 52 is separated from the wall of the aeration tank so that the lower part of the anaerobic tank 50 communicates with the aeration tank 70. The process water outlet 53 is formed in the upper part of the anaerobic tank 50 formed by 52.

Accordingly, the waste / waste water that has flowed into the screen tank 10 through the raw water inlet 12 is removed into the aeration tank 70 by the flow control tank 20 after the relatively bulky impurities and floating substances are removed by the screen. The

At this time, the flow rate control tank 20 flows a certain amount of the lower / waste water homogenized so that the lower / waste water is appropriately treated inside the aeration tank 70 into the aeration tank 70.

Then, the waste / waste water that flows into the aeration tank 70 flows into the lower part of the anaerobic tank 50 through the inside of the aeration tank 70, and the sludge having a weight is permeable anaerobic and formed in the anaerobic tank 50. It is filtered by the anaerobic sludge layer and circulated to the bottom of the aeration tank 70. A liquid layer is formed on the upper part of the anaerobic tank 50 and is continuously discharged to the next stage through the treated water outlet. At this time, the aeration tank 70 repeats the aeration time and the rest time. During the aeration time, the lower / waste water inside the aeration tank 70 is aerated by mixing with activated sludge, and during the rest time, the aeration tank 70 Sludge settles at the bottom of the slag, and during the next aeration time, the sludge also mixes with the incoming sewage / waste water.

As described above, the reaction tank composed of the aeration tank 70 and the anaerobic tank 50 for performing the aeration, precipitation, and mixing processes is installed in multiple stages, so that it is optimal depending on the concentration of the bottom / waste water flowing into each aeration tank 70. Since sludge with a high degree of activity is the mainstream, wastewater / wastewater treatment efficiency is promoted. As described above, sludge discharged from the aeration tank 70 is concentrated in the concentration tank 90 and then dehydrated by the dehydrator 100. And discharged with sludge cake.

However, if the sludge having a weight in the anaerobic tank is slowly filtered by the facultative anaerobic and anaerobic sludge layers and is circulated to the bottom of the aeration tank 70, a partial reaction may occur inside the anaerobic tank. Therefore, the nitrification reaction rate by microorganisms is progressing slowly, nitrogen gas cannot be released properly, and anaerobic sludge floats up, making it impossible to manage the sludge properly There is.

An object of the present invention created to solve the above problems is to oxidize and decompose pollutants in an aerobic state by integrally forming an anaerobic tank in which a sludge layer is formed in an aeration tank. After removing organic substances and nitrogen under facultative anaerobic and anaerobic conditions, and removing sludge from excessive intake of phosphorus, it also removes phosphorus at the same time, such as livestock wastewater and manure Depending on the nature of the wastewater containing high concentration of nitrogen and the required quality of the treated water, the process can be repeated in one or more stages to improve the treatment efficiency, and in particular, the agitator installed in the anaerobic tank. A large number of air is installed to supply the oxygen necessary for the treatment of the lower / waste water to the lower side of the aeration tank by slowly rotating the mesh or bar-shaped impeller to gently stir the inside of the anaerobic tank. Upper side of spout A wire mesh is formed on the lower and upper peripheral surfaces of an elliptical pellet container filled with a microbial activity inducer, and the lower / waste water smoothly flows into and out of the pellet container. Aerobic and anaerobic sludge that performs the action to induce an overall reaction inside the anaerobic and aerated tanks, removing the oxidation and decomposition of pollutants due to aerobic conditions and removing organic substances and nitrogen and phosphorus due to anaerobic conditions The present invention provides a treatment apparatus and a treatment method for wastewater containing high-concentration nitrogen such as livestock wastewater and manure that can be easily managed.

In order to achieve such an object, according to the apparatus for treating wastewater containing high concentrations of nitrogen, such as livestock wastewater and manure of the present invention, a screen tank provided with a raw water inlet and a screen, and the screen From the aeration tank, installed at the rear end of the tank to homogenize the quality of sewage water and adjust the outflow of sewage, the aeration tank to flow in the sewage and maintain an appropriate oxygen partial pressure, and the aeration tank An anaerobic tank is formed on one side of the aeration tank in a sewage / wastewater treatment device comprising a concentration tank for concentrating the generated sludge and a dehydrator for dewatering the concentrated sludge to form a sludge cake. The partition wall is integrally formed so that the upward vertical end is positioned higher than the water surface of the lower / waste water, but the partition wall is inclined so that the upper part of the anaerobic tank is wider than the lower part. Forming the treated water outlet The lower part of the partition wall is separated from the wall surface of the aeration tank so that the lower part of the anaerobic tank communicates with the aeration tank, and the inside of the anaerobic tank is driven to rotate slowly for the whole reaction. A stirrer in which a large number of impellers are formed, and an elliptical shape filled with a microbial activity inducer on the upper side of the air spout located below the aeration tank for the flow of the lower / waste water The pellet container is installed through a support, and at this time, wire meshes are respectively formed on the lower and upper peripheral surfaces of the pellet container so that the lower / waste water flows into the pellet container and the wire It is characterized by performing a stirring action that flows out to the outside by a mesh.

At this time, the impeller which is driven to rotate slowly for the overall reaction is formed in a mesh or bar shape inside the anaerobic tank, and one or many pellet containers are installed inside the aeration tank. It is characterized by that.

In addition, according to the method for treating wastewater containing high concentrations of nitrogen such as livestock wastewater and manure of the present invention, bulky contaminants and floating substances from sewage flowing into the screen tank through the raw water inlet are removed. The step of removing with a screen, the sewage that has passed through the screen flows into the flow control tank and flows out at an appropriate flow rate, the stage of mixing and mixing the sewage underflow and mixing in the flow control tank to homogenize the quality of the sewage, and Homogenized sewage flows into the aeration tank, maintaining an appropriate oxygen partial pressure, oxidizing and decomposing contaminants in an aerobic state, and the liquid layer generated from the aeration process is treated water outlet In the lower / waste water treatment method, the sludge is drained and concentrated and dehydrated. In the aeration step, a partition defining an anaerobic tank is formed on one side of the aeration tank. Is the aeration tank The upper part of the anaerobic tank forms a treated water outlet, and a stirrer in which a number of impellers that are driven to rotate slowly for the entire reaction is formed inside the anaerobic tank. Then, an anaerobic sludge layer is formed and stirred inside the anaerobic tank, and the inside of the aerated tank is maintained in an aerobic state by an appropriate oxygen partial pressure. Agitating and performing an agitating action by the inflow and outside outflow action of the lower / waste water through the wire mesh inside the elliptical pellet (Pellet) container installed on the upper side of the air outlet below the aeration tank, By filling the inside of the pellet container with a microbial activity inducer for inducing microbial activation, the facultative anaerobic and anaerobic states are maintained by the facultative anaerobic sludge layer and the anaerobic sludge layer. Pollutant oxidation by condition Fine decomposition and, characterized by performing the organic matter and nitrogen and phosphorus removal by anaerobic conditions.

At this time, an impeller formed in a mesh shape or a bar shape for the overall reaction inside the anaerobic tank is rotationally driven at 0.1 to 30 m / min.

Further, the microbial activity inducing agent filled in the pellet container, organics 33% by weight remaining in the soil or the like, SiO ₂ 53.4 wt%, Al ₂ O ₃ 7.8 wt%, Fe ₂ O ₃ 4.0 wt%, Na ₂ It is characterized by being composed of 0.5% by weight of O, 0.3% by weight of K ₂ O, 0.5% by weight of CaO, and 0.5% by weight of MgO.

The above objects, other features and advantages of the present invention will become apparent from the following description of the preferred embodiments of the present invention referred to below.

As described above, according to the present invention, the anaerobic tank in which the sludge layer is formed in the aeration tank is integrally formed to oxidize and decompose the pollutants in an aerobic state, and then the facultative anaerobic ( Organic substances and nitrogen under anaerobic conditions) and wastewater containing high concentrations of nitrogen, such as livestock wastewater and feces and urine, as well as removal of phosphorus by removing sludge with excessive intake of phosphorus The process efficiency is improved by repeating the process in one or more stages depending on the properties of the water and the required quality of the treated water. In particular, a mesh of a stirrer installed in an anaerobic tank or a bar-shaped impeller is installed. Microbial activity inducer above a large number of air spouts installed to rotate slowly and stir the inside of the anaerobic tank thoroughly and supply oxygen necessary for the treatment of the lower / waste water below the aeration tank Is filled A wire mesh is formed on the lower and upper peripheral surfaces of an elliptical pellet container, and the inside of the pellet container performs a stirring action in which the lower / waste water smoothly flows into and out of the pellet container. The microorganisms in the sewage / waste water are activated by contact with the microbial activity inducer filled in the aeration tank, so that the aerobic microorganisms oxidize and decompose the pollutants in the aeration tank. There is an effect that aerobic sludge and anaerobic sludge can be easily managed while inducing a reaction to remove organic substances and nitrogen and phosphorus by facultative anaerobic and anaerobic microorganisms and discharging nitrogen gas easily. .

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

FIG. 3 is a drawing showing an aeration tank and an anaerobic tank of a treatment apparatus for wastewater containing high concentrations of nitrogen such as livestock wastewater and manure according to the present invention, and FIG. 4 is installed inside the anaerobic tank of the present invention. FIG. 5 is a schematic installation structure diagram of an agitator impeller, and FIG. 5 is a schematic installation structure diagram of a pellet container installed on the lower side inside the aeration tank of the present invention. The present invention will be described with reference to FIGS.

That is, the lower part of the anaerobic tank 50 in which the treated water outlet 53 is formed at the upper part is connected to the middle and lower part of the aeration tank 70 so that the screen tank 10 removes relatively large dust and suspended matters. Accordingly, the livestock wastewater and the wastewater containing high concentration nitrogen such as manure discharged into the flow rate control tank 20 are homogenized and a predetermined amount flows into the aeration tank 70 continuously.

The wastewater such as livestock wastewater and manure discharged into the aeration tank 70 flows into the lower part of the anaerobic tank 50 through the inside of the aeration tank 70, and the activated sludge in the mixed solution is sludge floor formed in the anaerobic tank 50 A filtered and separated liquid layer is formed on the upper portion of the anaerobic tank 50 and is continuously discharged to the next stage through the treated water outlet 53.

On the other hand, as shown in FIG. 4, the anaerobic tank 50 includes a large number of impellers 81 formed in a mesh or bar shape that is driven to rotate slowly for the entire reaction. A stirrer 80 is formed and stirred inside the anaerobic tank at a speed of 0.1 to 30 m / min, preferably 0.1 to 2 m / min. The anaerobic sludge is easily managed while inducing an overall reaction inside the anaerobic tank and easily discharging nitrogen gas.

The impeller 81 that is driven to rotate slowly for the overall reaction inside the anaerobic tank 50 is formed in a mesh shape so that anaerobic sludge can be easily filtered, or the impeller 81 Is formed in a bar shape to pulverize anaerobic sludge having a relatively large size.

At this time, the pollutant removal reaction and principle, which are established in an aerobic state, an anaerobic state, and an anaerobic state, are as follows.

Nitrogen in wastewater such as livestock wastewater and manure is organic nitrogen (Org-N), ammoniacal nitrogen (NH ₃ -N), nitrite nitrogen (NO ₂ -N) and nitrate nitrogen (NO ₃ -N), the main forms of untreated livestock wastewater and wastewater such as manure are organic nitrogen and ammoniacal nitrogen. Nitrification, which exists mainly in ammonia nitrogen in the early stage of pollution and recovers from the pollution, is oxidized from nitrates to nitrate nitrogen.

Biological nitrification in livestock wastewater and sewage wastewater treatment processes, such as manure, consists of Nitrosomonas that oxidizes ammonia nitrogen to nitrite nitrogen and Nitrobacter that oxidizes nitrite nitrogen to nitrate nitrogen. These microorganisms are autotrophic organisms that obtain energy from inorganic compounds while heterotrophic organisms obtain energy while oxidizing organic compounds.

Nitrification of ammoniacal nitrogen consists of two stages. The first stage is where Nitrosomonas converts ammonia nitrogen to nitrite nitrogen, and the second stage is Nitrobacter where nitrite nitrogen is converted to nitrate nitrogen. In terms of chemical formula,
^{_{NH 4 + + 1.50 2 ->}} NO 2 - + H 2 O + 2H +
^{_{NO 2 - + 0.5O 2 ->}} NO 3 -

In the above reaction formula, oxygen is an electron carrier for biochemical oxidation of ammoniacal nitrogen and nitrite nitrogen. Oxygen is the only electron carrier available to Nitrosomonas and Nitrobacter. Therefore, in order for the nitrification process to proceed, aerobic conditions are indispensable, and it is denitrifying to remove the nitrate ions (Nitrate ions) thus reduced to NO, N ₂ O, and N _2. It is a process.

The microorganisms involved in the denitrification include Achromobacter, Bacillus, Brevibacterium, Enterobacter, Lactobacillus, Micrococcus, Paracalobactrum, Pseudomonas, Spirillum and the like. These microorganisms are heterotrophic organisms. These are diverse as aerobic, facultative anaerobic, anaerobic, etc., but more than 80% in nature are known as facultative anaerobic, and these microorganisms oxidize organic compounds, Oxygen is used as an electron carrier. If oxygen is absent or deficient, it performs anoxic breathing. At this time, oxygen (NO ₃ ⁻ , SO ₄ ^2−, etc.) in a chemically bonded form is used as the final electron solute. The case where there is no dissolved oxygen (molecular oxygen) and only chemically bonded oxygen is present is referred to as an anaerobic condition (Anoxic condition) as distinguished from an anaerobic condition. In the absence of oxygen, the presence of oxygen now controls the oxygen action in breathing of facultative anaerobes, which is much more when using dissolved oxygen than chemically bound oxygen as the final electron solute. Because energy is generated, facultative anaerobic (anoxic) microorganisms prefer dissolved oxygen. Therefore, there must be no dissolved oxygen (molecular oxygen) for denitrification.

All processes for biological phosphorus removal maintain a periodic anaerobic / aerobic state of the reactor. That is, phosphorus is removed by using phosphorus release (Phosphorus release) and excessive uptake (Luxury uptake).

Phosphorus-removing microorganisms (PAOs) take the organic acid such as acetic acid (Acetic acid) using the energy generated when decomposing inorganic phosphorus (Poly-P) in cells under anaerobic conditions. At this time, the released normal phosphoric acid (Ortho-P) is released in the solution, which is called phosphorus release (Phosphorus release). If the anaerobic condition is changed to the aerobic condition, the phosphorus-removing microorganism decomposes the stored PHA to synthesize ATP (Adenosine Tri-Phosphate), which is used to remove normal phosphoric acid from the solution to make inorganic. Synthesize with phosphorus and store in cells.

Also, important facts as well as the excessive intake of phosphorus occurs under aerobic conditions, other electron yield solution oxygen outside (Electron acceptor) That, NO ₃ ^- If there substance such as, there is no oxygen Even in the state, the release of phosphorus is disturbed. Phosphorus release at anaerobic tank in order to efficiently NO ₃ ^- must be removed.

The apparatus for treating wastewater such as livestock wastewater and manure according to the present invention performs aeration by performing aeration for a set time depending on the properties of livestock wastewater and manure wastewater flowing into the aeration tank 70. During the time, ammonia nitrogen contained in the inflow water is oxidized to nitrate nitrogen by oxygen and nitrate bacteria, and it flows into the lower part of the anaerobic tank 50 and is formed inside the anaerobic tank 50. The anaerobic and anaerobic sludge layers are stirred by rotating the mesh-like or bar-like impeller 81 of the stirrer 80 at a slow speed of 0.1 to 30 m / min to induce a reaction in the entire anaerobic tank 50. Nitrogen gas is easily discharged, while anaerobic sludge is easily managed, and nitrate nitrogen NO ₃ -N oxidized in the aeration tank 70 is reduced and removed by nitrogen gas (N2) be able to.

Phosphorus is also more than the amount of phosphorus released during anaerobic time after poly-P microorganisms released phosphorus using short-chain fatty acids in anaerobic condition and then consumed excessive phosphorus during the aeration period. By removing an excess amount of phosphorus and removing the incoming water phosphorus, the removal of phosphorus throughout the system consists of discarding excess sludge.

In order to remove nitrogen in the main-stream process such as the A2 / O process, the sludge mixed solution in the aeration tank 70 containing nitrate nitrogen is internally returned to the oxygen-free tank (internal recycle). The sludge that has undergone high-liquid separation from the final sedimentation tank 80 supplements the amount of microorganisms in each reaction tank, or returns sludge to the entire stage of the process for returning sludge to the anaerobic tank 50 (return activated). sludge: RAS) is required, and in the present invention, the aeration tank 70 can be operated while maintaining a high sludge concentration (high concentration microorganisms) by being filtered by the sludge layer formed in the anaerobic tank 50. When constructing wastewater treatment facilities such as livestock wastewater and manure, the site is saved, construction costs are low, and high concentrations of nitrogen, phosphorus and organic matter are included as well as sewage with low organic matter concentration and C / N ratio. Effective treatment of domestic wastewater and wastewater such as manure be able to. Thus, the sewer / waste water treatment apparatus according to the present invention is the same as the conventional apparatus from the sewer / waste water inlet 12 to the flow rate control tank 20, but the partition wall 52 defining the anaerobic tank 50 is provided on one side of the aeration tank 70. It is formed integrally so that the upward vertical edge is positioned higher than the surface of wastewater such as livestock wastewater and manure, and at this time, it flows into the lower part of the anaerobic tank 50 and is formed inside the anaerobic tank 50 The anaerobic and anaerobic sludge layers are agitated by rotating the mesh or bar impeller 81 of the stirrer 80 at a slow speed of 0.1 to 30 m / min.

In addition to this, an elliptical pellet 120 (Pellet) container interposes a triangular support base 121 above the air outlet 110 that is installed for the flow of lower / waste water below the aeration tank 70. At this time, wire meshes 122 and 123 (Mesh) are formed on the lower and upper peripheral surfaces of the pellet container 120, respectively, and the lower / waste water is discharged by the air ejection from the air ejection port 110. After flowing into the inside of the pellet container 120 through the lower wire mesh 122, it is discharged to the outside by the wire mesh 123 formed on the upper peripheral surface of the pellet container 120 to perform a stirring action.

On the other hand, inside the pellet container 120, a microbial activity inducer for inducing the activation of microorganisms for treating pollutants of livestock waste water and manure waste water, and the upper lid of the wire mesh 123 of the pellet container 120 are covered. open is filled therein, this time, the microbial activity inducer organics 33% by weight remaining in the soil or the like, SiO ₂ 53.4 wt%, Al ₂ O ₃ 7.8 wt%, Fe ₂ O ₃ 4.0 wt%, Na ₂ It is composed of 0.5% by weight of O, 0.3% by weight of K ₂ O, 0.5% by weight of CaO, and 0.5% by weight of MgO.

Therefore, the microbial activity induction filled in the pellet container 120 of the aeration tank 70 while stirring the facultative anaerobic and anaerobic sludge layers formed inside the anaerobic tank 50 as described above with the stirrer 80. Oxidation and decomposition of the pollutants by the activated aerobic microorganisms occur in the aeration tank 70 when the agent and the microorganisms in the sewage / waste water are activated, and in the anaerobic tank 50 the facultative anaerobic and It is possible to easily manage aerobic sludge and anaerobic sludge while easily discharging nitrogen gas by inducing a reaction to remove organic substances and nitrogen and phosphorus by anaerobic microorganisms.

Although the present invention has been described above with reference to certain preferred embodiments, the present invention is not limited to such embodiments and has ordinary knowledge in the technical field to which the invention belongs. All modifications of various forms that can be implemented without departing from the technical idea of the present invention as claimed in the claims are included.

It is a drawing showing a conventional sewage / waste water treatment apparatus and process. It is drawing which represents the aeration tank and anaerobic tank of the conventional sewage / waste water treatment apparatus. It is drawing which shows the aeration tank and the anaerobic tank of the processing apparatus of the waste water containing high concentration nitrogen, such as livestock waste water and manure by this invention. It is a schematic installation structure figure of the stirrer impeller installed in the anaerobic tank of this invention. It is a general | schematic installation structure figure of the pellet container installed in the inside lower side of the aeration tank of invention.

Explanation of symbols

10 screen tank
11 screens
12 Raw water inlet
20 Flow control tank
50 anaerobic tank
52 Bulkhead
53 Treated water outlet
70 aeration tank
80 Stirrer
81 Impeller
90 Concentration tank
100 dehydrator

Claims (7)

A screen tank with a raw water inlet and screen installed, a flow control tank installed at the rear end of the screen tank to adjust the sewage outflow amount by homogenizing the sewage water concentration, A waste / waste water comprising an aeration tank for maintaining a partial pressure of oxygen, a concentration tank for concentrating sludge generated from the aeration tank, and a dehydrator for dewatering the concentrated sludge to form a sludge cake In the processing device,
A partition that forms an anaerobic tank on one side of the aeration tank is integrally formed so that the upward vertical end thereof is positioned higher than the lower / waste water surface, but the upper part of the anaerobic tank is wider than the lower part. The partition wall is inclined and formed, a treated water outlet is formed in the upper part, and the lower part of the partition wall is separated from the wall surface of the aeration tank so that the lower part of the anaerobic tank communicates with the aeration tank, Inside the anaerobic tank, a stirrer with many impellers that are driven to rotate slowly for the overall reaction is installed, and many are installed for the flow of lower / waste water below the aeration tank. An elliptical pellet container filled with a microbial activity inducer is installed on the upper side of the air spout, and a wire mesh is placed on the lower and upper peripheral surfaces of the pellet container. Each of the above-mentioned bottom / waste water flows into the inside of the pellet container and the above-mentioned Wastewater treatment apparatus including a high concentration of nitrogen such as livestock wastewater and excreta, characterized in that performing the stirring action that is discharged to the outside by ear mesh. 2. The livestock wastewater and feces and urine according to claim 1, wherein the anaerobic tank is formed in a mesh shape with an impeller that is driven to rotate slowly for an overall reaction. Wastewater treatment equipment containing nitrogen at a concentration. 2. The livestock waste water and manure as claimed in claim 1, wherein the anaerobic tank is formed in a bar shape with an impeller that is driven to rotate slowly for an overall reaction. Wastewater treatment equipment containing nitrogen at a concentration. 2. The apparatus for treating wastewater containing high-concentration nitrogen such as livestock wastewater and manure according to claim 1, wherein one or a plurality of the pellet containers are installed inside and below the aeration tank. . The screen removes bulky impurities and suspended solids from the sewage flowing into the screen tank through the raw water inlet, and the sewage passed through the screen flows into the flow control tank and flows out at an appropriate flow rate. The step of mixing and mixing the sewage in the flow rate control tank to homogenize the quality of the sewage, and flowing the homogenized sewage into the aeration tank, maintaining an appropriate oxygen partial pressure in an aerobic state In an aeration process for oxidizing and decomposing pollutants, a liquid layer generated from the aeration process is drained to a treated water outlet, and sludge is concentrated and dehydrated.
In the aeration stage, a partition defining an anaerobic tank is formed on one side of the aeration tank. The aerobic sludge layer is formed inside the anaerobic tank by installing a stirrer in which a large number of impellers that are driven to rotate slowly for the overall reaction are formed. And the inside of the aeration tank is maintained in an aerobic state by an appropriate oxygen partial pressure, and the entire inside of the anaerobic tank is stirred through a stirrer, and the upper side of the air jet port below the aeration tank. In order to induce the activation of microorganisms in the inside of the pellet container and the inside of the pellet container, the stirring action by the inflow and the outflow action of the waste / wastewater through the wire mesh inside the elliptical pellet container (Pellet) Faint anaerobic by filling with microbial activity inducer Maintains the facultative anaerobic and anaerobic conditions of the sludge layer and anaerobic sludge layer, and performs the oxidation and decomposition of pollutants due to the aerobic condition and the removal of organic substances and nitrogen and phosphorus due to the anaerobic condition A method for treating wastewater containing high concentrations of nitrogen, such as livestock wastewater and manure. The high concentration nitrogen such as livestock waste water and manure according to claim 5, wherein an impeller is rotationally driven at 0.1 to 30 m / min for an overall reaction inside the anaerobic tank. Including wastewater treatment methods. The microbial activity inducing agent filled in the pellet container, organics 33% by weight remaining in the soil or the like, SiO ₂ 53.4 wt%, Al ₂ O ₃ 7.8 wt%, Fe ₂ O ₃ 4.0 wt%, Na ₂ O 0.5 Wastewater containing high-concentration nitrogen such as livestock wastewater and manure according to claim 5, wherein the wastewater is composed of 0.5% by weight, 0.3% by weight of K ₂ O, 0.5% by weight of CaO, and 0.5% by weight of MgO. Processing method.