KR101035942B1 - Method and system for treating domestic animal excretion - Google Patents

Abstract

PURPOSE: A livestock excretion treatment system and a treatment method thereof are provided to effectively remove water pollutants inside high concentration raw water of livestock excretion. CONSTITUTION: A livestock excretion treatment system comprises the following: a raw water storage tank(10); a solid-liquid separator(20) flocculating high concentration raw water of livestock excretion, and performing a solid-liquid separation process; a flow controlling tank(30) controlling the flowing amount of solid-liquid separated water; an anoxic tank(40) removing organic materials from the solid-liquid separated water, and denitrifying; a first post-denitrification tank(50); a first aeration tank(60); a first settling tank(70) precipitating sludge, and transferring surface water to a second post-denitrification tank(80); a second aeration tank(90); and a membrane separation tank(100) removing microorganisms from the treated water.

Description

Livestock manure treatment system and treatment method {METHOD AND SYSTEM FOR TREATING DOMESTIC ANIMAL EXCRETION}

The present invention relates to a treatment system and treatment method for complete discharge treatment of livestock manure, and more particularly, to a livestock manure treatment system to enhance the purification treatment efficiency of livestock manure to allow the final treated water to be completely discharged into the water system. And to a treatment method.

Livestock manure has a large amount of daily generation is being processed through land and sea, there are a lot of difficulties in the treatment of livestock manure, causing problems such as environmental pollution.

Livestock manure contains high concentrations of solids, water and organic pollutants such as nitrogen and sometimes heavy metals and toxic substances.

Accordingly, many treatment apparatuses for the treatment of livestock manure are used, and conventionally, many treatments are performed in such a manner as to discharge the water after purifying through the treatment apparatus for livestock manure.

However, in the related art, not only the livestock manure treatment is not efficiently performed, but also the problem of discharge treatment even in a state in which purification is inadequate, thereby causing a problem of environmental pollution that pollutes not only the surrounding environment but also a river or soil.

The present invention has been made in view of the above-described problems, such as to improve the purification treatment efficiency of livestock manure to allow the final treated water to be completely discharged to the water system, and to prevent environmental pollution such as soil or rivers The purpose is to provide a treatment system and treatment method of the manure.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention by those skilled in the art.

Livestock manure treatment system of the present invention for achieving the above object, the raw water storage tank is stored high concentration raw water of livestock manure, the first raw water transfer pump is installed for transfer processing of raw water; It is installed to remove the sludge contained in the high concentration raw water and the solid-liquid separation after the coagulation treatment according to the chemical input by receiving the high concentration raw water from the raw water storage tank, the solid-liquid separation water transfer pump is connected to the solid-liquid separation water transfer pump Separator; The solid-liquid separator separated through the solid-liquid separator flows in, and the flow rate of the solid-liquid separator is adjusted through a second raw water transfer pump, and a transverse type agitator is installed to serve as an oxygen-free tank for removing nitrogen components. One flow adjustment tank; Oxygen-free tank which flow-adjusted solid-liquid separation water flows through the said flow adjustment tank, and is provided for denitrification and organic matter removal, and installed the transverse direction underwater stirrer; A first post-denitrification tank provided for denitrification and organic matter removal from the solid-liquid separation water in a continuous process following the anoxic tank, and installed with a transverse stirrer; The first aeration treatment using microorganisms and air with respect to the treated water passing through the first after denitrification tank is provided to remove organic matter, a microbial incubator and a membrane diffuser for supplying microorganisms and air are installed, and the first aeration treatment water. A primary aeration tank equipped with an internal return pump for returning to an anoxic tank for use in denitrification; The sludge is received by receiving the treated water passing through the primary aeration tank, and only the solid-liquid separation supernatant is provided to the second after-denitrification tank, which will be described below. A primary sedimentation tank equipped with a first sludge discharge pump; A secondary after-denitrification tank receiving solid-liquid separation supernatant from the primary sedimentation tank, and having a transverse hydrotherapy stirrer for secondary denitrification; A secondary aeration tank provided for removing organic matter through a secondary aeration treatment with respect to the treated water passing through the second after denitrification tank, and having a membrane diffuser installed therein; Stable suction and transfer of the separation membrane and membrane separated treatment water to filter out the remaining microorganisms that have not yet been removed by receiving the solid-liquid separated supernatant water passed through the primary sedimentation tank or the secondary aeration treated water passed through the secondary aeration tank. A membrane separation tank having a suction pump for treatment; And a sludge containing water pollutant contained in the treated water passing through the membrane separation tank, and a second rotary scraper for sedimentation and discharge of sludge and a second sludge discharge pump for transfer treatment. Secondary settling tank; An activated carbon tank for adsorbing and removing a small amount of water pollutant remaining in the treated water passing through the secondary precipitation tank using activated carbon; Characterized in that it comprises a.

In the method for treating livestock manure of the present invention for achieving the above object, the first step of separating solid-liquid with high concentration raw water of livestock manure using a fluidized plate screw-type solid-liquid separator, while coagulation reaction through chemical input ; A second step of sending the solid-liquid separation water passed through the first step to a flow adjusting tank so as to adjust the processing flow rate, and performing a role as a first anoxic tank by stirring through a first cross-sectional underwater stirrer; The denitrification treatment and organic matter are removed by anoxic stirring through a second transverse agitator to the solid-liquid separation tank adjusted by the flow rate through the second step, and the first aeration treatment water biologically treated by the microorganism is returned and received. A third step of increasing the denitrification treatment efficiency using the contained nitrate nitrogen; A fourth step of removing the denitrification and organic matter by stirring the solid-liquid separated water which has passed through the third step in a continuous process through a third transverse agitator; The first aeration treatment water to remove organic matter by biological treatment using the microorganisms introduced through the microorganism culturer and the first aeration treatment by air supply for the treated water after the fourth step, and to increase the denitrification efficiency by the active microorganisms. A fifth step of carrying back to the third step; A sixth step of sedimenting and separating the sludge by the deceleration treatment by the first rotary scraper to the first aeration treated water that has passed through the fifth step and sending only the solid-liquid separation supernatant of the upper part to the next seventh step; A seventh step of denitrifying the solid-liquid separated supernatant after the sixth step by a stirring treatment using a fourth transverse agitator; An eighth step of removing organic matter by secondary aeration by air supply to the solid-liquid separated supernatant subjected to secondary denitrification through the seventh step; A ninth step of removing the remaining microorganisms and water contaminants that have not yet been removed by physical filtration using a separation membrane for the solid-liquid separated supernatant water passed through the sixth step or the secondary aeration treated water passed through the eighth step; The sedimentation is separated by deceleration by the second rotary scraper on the membrane-separated solid-liquid separated supernatant that passed through the ninth stage, and only the solid-liquid separated supernatant is sent to the next eleventh stage. A tenth step of controlling the pH of the reaction treatment and water quality; And an eleventh step of finally treating a small amount of water pollutant that may remain in the solid-liquid separated supernatant that has passed through the tenth step into a water quality that can be completely discharged by adsorption treatment using activated carbon. Characterized in that comprises a.

According to the present invention, through efficient batch design and multi-stage purification treatment of the purification treatment devices, it is possible to effectively remove water pollutants such as solids and organic matter contained in high concentration raw water of livestock manure. In addition, it is possible to purify the final treated water of livestock manure below the water discharge standard, so that it can be completely discharged into the water system, and even the discharge treatment can achieve usefulness to prevent environmental pollution such as soil or river.

1 is a system diagram showing a treatment system of livestock manure according to a preferred embodiment of the present invention,
Figure 2 is a schematic diagram showing a treatment system of livestock manure according to another embodiment of the present invention,
3 is a block flow diagram illustrating a method for treating livestock wastes according to the present invention.

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

1 is a schematic diagram showing a livestock waste treatment system according to a preferred embodiment of the present invention, Figure 2 is a schematic diagram showing a livestock waste treatment system according to another embodiment of the present invention.

Livestock manure treatment system 100 according to the present invention, as shown in Figure 1, raw water storage tank 10 is installed with a high concentration raw water of livestock manure and the first raw water transfer pump 11 for the transfer of raw water And, after receiving a high concentration of raw water from the raw water storage tank 10 and after the flocculation treatment according to the chemical input is installed to remove the sludge, including the solid content of insoluble suspended solids (SS) contained in the high concentration raw water and solid-liquid separation The solid-liquid separator 20 having the solid-liquid separation water transfer pump 21 for the transfer treatment of the solid-liquid separator and the solid-liquid separation water separated through the solid-liquid separator 20 flows in and transfers the flow rate of the solid-liquid separation water to the second raw water feed pump ( 31) and the flow control tank 30 and the flow control tank 30 to provide a first lateral type underwater stirrer 32 and to act as an oxygen-free tank for the removal of nitrogen components, The flow rate-adjusted solid-liquid separator flows through) and is provided for denitrification and organic matter removal, and the denitrification from the solid-liquid separator in a continuous process following the anoxic tank 40 provided with a second transverse agitator 41 and the anoxic tank 40 is performed. And a first post denitrification tank 50 provided with a third cross-sectional underwater stirrer 51 for removing organic matters, and 1 using microorganisms and air for the treated water passing through the first post denitrification tank 50. It is provided to remove organic matter by the secondary aeration treatment, and a microorganism incubator 61 and a membrane diffuser 62 for supplying microorganisms and air are installed, and the primary aeration treatment water is returned to the anoxic tank 40 to be used for denitrification. The primary aeration tank 60 with the inner conveying pump 63 and the treated water passing through the primary aeration tank settle the sludge and send only the solid-liquid separation supernatant to the secondary after-denitrification tank 80 described below. Is equipped for A first settling tank (70) equipped with a first sludge discharge pump (72) for installing and transporting the first rotary scraper (71) for sedimentation and discharge of the sludge, and solid-liquid separation from the first settling tank (70) A second after denitrification tank 80 having a fourth lateral type water stirrer 81 for secondary denitrification treatment and receiving the supernatant water, and the treated water passing through the second after denitrification tank 80 (solid-liquid separation supernatant) Secondary aeration tank 90 is provided for removing organic matter through the secondary aeration treatment, and the membrane diffuser 91 is installed to reduce BOD (biological oxygen demand), and the solid-liquid separation supernatant through the first precipitation tank or Installation of a separation membrane 101 for filtering and removing residual microorganisms that have not yet been removed by receiving the secondary aeration treatment water that has passed through the secondary aeration tank, and a suction pump for stably inhaling the treated water separated from the membrane and transporting it ( 102 is provided with a membrane separation tank 100, It is provided to treat sludge containing water pollutants (eg, BOD, SS, TN, TP, etc.) contained in the treated water (supernatant) that has passed through the membrane separation tank 100. The second rotary scraper 111 for the second settling tank 110 is provided with a second sludge discharge pump 112 for installation and transport treatment, and remaining in the treated water passed through the secondary settling tank 110. It comprises an activated carbon tank 120 for adsorbing and removing a small amount of water pollutants that can be activated using activated carbon.

The solid-liquid separator 20 is preferably configured to increase the separation efficiency of the solid sludge and the liquid water by installing a fluidized plate screw-type solid-liquid separator.

The fluidized plate screw type solid-liquid separator separates sludge as a solid from the livestock manure of high concentration introduced through the fluidized plate and screw disposed at the top, and separates the solid-liquid separated water into the solid-liquid separation tank disposed at the bottom. to be.

The solid-liquid separator 20 is preferably connected to the chemical injector (not shown) for the automatic injection of the medicine.

The primary aeration tank 60 and the secondary aeration tank 90 is preferably provided to enable a multi-stage aeration process.

The first settling tank (70) is located in the upper settling tank and the first upper scraper (73) rotated in the same manner as the first rotary scraper (71), and the sludge suspended by the rotation of the first upper scraper (73) And an upper scum collecting trough 74 for collecting a scum that is suspended, and an upper scum collecting pump 75 for collecting and removing scum collected by the upper scum collecting trough 74. By installing a recovery means for removing the upper scum can be configured to further increase the sludge removal efficiency.

The membrane separation tank 100 may be partially disposed of or disposed of in a manner such that the treated water introduced into the membrane separation tank does not affect the membrane separation of high concentration, or is transported to a high concentration treatment process or transported to the liquid storage tank 130 described later. In conjunction with the conveying pump 103 and the second raw water feed pump 31 of the flow rate adjusting tank 30 at the high water level in the membrane separation tank to prevent overflow due to the high water level for the process after the flow rate adjusting tank and suction at the low level of the membrane separation tank. Two water level sensors 104 installed in conjunction with the pump 102 to prevent membrane damage, a blower 105 for use in cleaning the membrane surface of the separation membrane 101, and stable for cleaning the membrane surface of the separation membrane 101 It further comprises a membrane separation air line header 106 for supplying air to the membrane, and a membrane separation suction header 107 for stably suctioning the treated water separated from the membrane 101.

At this time, the blower 105 is interlocked to stop the operation of the suction pump when stopping the operation of the brower so as to prevent membrane damage that may occur due to the operation of the suction pump when stopping the brower for cleaning. do.

Separation membrane 101 is installed in the membrane separation tank 100 is preferably using a hollow fiber membrane for physical filtration efficiency.

The second settling tank 110, as in the first settling tank, the second upper scraper 113 and the second upper scraper 113 that is rotated in the same manner as the second rotary scraper 111, the second upper scraper 113, Upper scum collecting trough 114 for collecting the scum (scum) that is suspended by the rotation of the upper and upper scum collection for collecting and removing the scum collected by the upper scum collecting trough 114 By installing a recovery means for removing the upper scum including the pump 115 can be configured to increase the sludge removal efficiency.

Here, the primary settling tank 70 and the secondary settling tank 110 is preferably configured to observe the entire inside of the settling tank by installing a side glass, respectively.

The secondary sedimentation tank 110 is preferably configured to adjust the coagulation treatment and pH control according to the chemical input so that the sludge can be precipitated more efficiently, the chemical injector (not shown) for automatic injection of the chemical It is preferred to be connected.

The first to fourth lateral agitators (32, 41, 51, 81) used in the present invention are agitators for mixing the entire agitator tank while increasing the flow volume by using a powerful jet swirl flow. In addition, by anoxic agitation, by exhibiting the characteristics of preventing the destruction and sedimentation of the suspended solids, it is possible to increase the treatment efficiency in each application.

The transverse underwater stirrer provided in the anoxic tank 41 and the primary and secondary post-denitrification tanks 50 and 80 is operated due to the dirt attached to the impeller side by operating an electric switch to perform forward rotation and reverse rotation. It is configured to prevent it from being stopped and the hassle of leaving out.

The first and second sludge discharge pumps provided in the primary and secondary sedimentation tanks 70 and 110 and the conveying pump 103 provided in the membrane separation tank 100 time the operation time through an electric device. It is configured to be adjusted and operated.

On the other hand, the livestock waste treatment system 100 according to the present invention is the first settling tank 70, membrane separation tank 100, secondary in the technical configuration described with reference to FIG. The sludge generated in the sedimentation tank 110 may be configured to further include a liquid storage tank 130 to be sprayed with a liquid liquefaction treatment and liquid rain by aeration treatment.

It is preferable to install a membrane diffuser 131 and an agitator (not shown) in the liquid storage tank 130, and livestock receives the treated water that can be finally discharged to the outside passing through the activated carbon tank 120 It is desirable to configure the manure sludge to be utilized for liquid fertilization.

On the other hand, the membrane diffuser 62, 91, 131 is installed in the primary aeration tank 60, the secondary aeration tank 90 and the liquid storage tank 130 for aeration treatment bottom to increase the aeration efficiency It is preferred to install 30 cm apart.

When explaining the operation of the livestock waste treatment system according to the present invention made of the above-described configuration and the treatment method with reference to Figures 1 to 3 as follows.

The high concentration raw water is sent from the raw water storage tank 10 in which the high concentration raw water of the livestock manure is stored to the solid-liquid separator 20 to perform solid-liquid separation to separate the solids (sludge) and the liquid (S1).

The high concentration of livestock manure stored in the raw water storage tank 10 has a water quality of about 25000 ppm of biological oxygen demand (BOD), 45000 ppm of insoluble suspended solids (SS), 4000 ppm of total nitrogen (TN), and 80 ppm of total phosphorus (TP). Becomes

At this time, the solid-liquid separator 20 receives a high concentration of raw water from the raw water storage tank 10 by using a fluidized plate screw-type solid-liquid separator and separates sludge which is a solid from the livestock manure raw water of high concentration through the flow plate and screw disposed at the top. To do this, the solid-liquid separation water of the liquid is treated by dropping into the solid-liquid separation tank disposed at the bottom, the separated sludge is generated in about 70% of the water and fermented in the composting plant to be used as compost.

Here, in the solid-liquid separator 20, when the raw water is transferred to a high concentration, chemicals are added to the flocculation reaction to increase the removal efficiency of sludge including solids of insoluble suspended solids (SS) contained in the high concentration of raw water.

For example, aluminum sulfate and emulsion flocculant may be used as chemicals, and some of the water contaminants (BOD, SS, TN, TP, etc.) may be removed from high concentration raw water through sludge removal by solid-liquid separation. Insoluble suspended solids (SS) can be removed to about 12000 ~ 13000ppm or less.

Subsequently, the solid-liquid separation water is sent to the flow rate adjusting tank 30 by the solid-liquid separation water transfer pump 21, and the flow rate adjusting tank 30 adjusts the processing flow rate appropriately through the second raw water transfer pump 31 to transfer to the next step. In addition, by removing the excess nitrogen component in the livestock manure by acting as a primary anaerobic tank by stirring through the first transverse agitator (32) (S2).

The flow-adjusted solid-liquid separation water sent to the anoxic tank 40 via the flow regulating tank 30 is anoxic-agitated by the stirring process using the powerful jet swirl flow of the second cross-flow underwater stirrer 41 in the anoxic tank 40. Denitrification to remove nitrogen and remove organic matter by preventing the destruction and precipitation of suspended matter (S3).

At this time, in the present invention, the primary aeration treatment water subjected to the first aeration treatment through the primary aeration tank 60 to the oxygen-free tank 40 side by carrying out the treatment, there is no dissolved oxygen at this time, but oxygen that can be used chemically Nitric acid (NO ₂ ) to further improve the denitrification process.

In addition, the treated water passing through the oxygen-free tank 40 is introduced into the primary after-denitrification tank 50, and is treated in a continuous process through a third transverse aquatic stirrer 51 which also performs agitation using powerful jet swirl flow. Denitrification and organics are removed from the water (solid-liquid separation water) (S4).

The treated water passing through the primary after-denitrification tank 50 flows into the primary aeration tank 60, and in the primary aeration tank 60, biological treatment and membrane diffuser 62 using microorganisms introduced through the microorganism incubator 61. The first step of aeration of the air supply through the air to remove organic matter (S5).

At this time, the microbial incubator 61 by installing a timer and setting the installation time to incubate once a day in accordance with the set time after 24 hours incubation can increase the biological treatment efficiency.

In this way, according to the microbial incubator 61, not only can the microorganisms be accurately and automatically supplied according to the set time, but also can be stably supplied in the primary aeration tank 60, as the emergent microorganisms for biological treatment, Lars, Bacillus bacteria can be utilized.

That is, the microorganism oxidizes and decomposes organic substances present in the treated water (solid-liquid separation water), and contributes to the denitrification effect of reducing nitric acid (NO ₃ ) to nitrous acid (NO ₂ ) from nitrous acid to nitrogen gas (N ₂ ).

In addition, in the primary aeration process, the primary aeration treatment water is returned to the anaerobic tank 40 through the internal transfer pump 63. In the anaerobic tank 40, the active microorganisms contained in the primary aeration treatment water transported are treated. It is possible to increase the denitrification efficiency by the action of, in the primary aeration tank (60) is to carry out the treatment of the active microorganisms to the oxygen-free tank 40, it is possible to stably manage and maintain the microorganisms in the primary aeration tank (60).

The treated water passing through the primary aeration tank 60 flows into the primary sedimentation tank 70, and in the primary sedimentation tank 70, sludge in the treated water is precipitated by the deceleration treatment of the treated water flow, and the upper portion in the sedimentation tank 70 is disposed. Only the solid-liquid separated supernatant is sent to the secondary after-denitrification tank 80 (S6).

At this time, the heavy sludge contained in the treated water by the deceleration treatment by the first rotary scraper 71 is precipitated to the lower portion of the primary settling tank 70, thereby enabling easy discharge of the sludge, the first upper portion Recovers and removes the upper scum collected by the upper scum collecting trough 74 through the upper scum collecting means including the scraper 73, the upper scum collecting trough 74 and the upper scum collecting pump 75. do.

Here, the sludge precipitated in the lower portion of the primary sedimentation tank 70 and the scum removed from the upper portion is sent to the sludge storage tank through the first sludge discharge pump 72 and the upper scum recovery pump 75 for treatment or liquid storage tank. Send to 130 to be used for liquid fertilization.

The solid-liquid separation supernatant separated through the primary settling tank (70) flows into the secondary after-denitrification tank (80), and in the secondary after-denitrification tank (80) of the solid-liquid separation supernatant through the fourth transverse type water stirrer (81). The secondary denitrification is performed by stirring (S7).

The solid-liquid separation supernatant passing through the secondary after-denitrification tank 80 flows into the secondary aeration tank 90, and in the secondary aeration tank 90, organic matter is removed by the secondary aeration treatment of the air supply through the membrane diffuser 91. In addition to removing the BOD (biological oxygen demand) acts to lower (S8).

At this time, the aeration intermittently progresses.

The solid-liquid separation supernatant passed through the primary settling tank 70 or the secondary aeration treated water passed through the secondary aeration tank 90 flows into the membrane separation tank 100, and in the membrane separation tank 100, physical filtration through the separation membrane 101. It removes and removes water pollutants by filtering out the remaining microorganisms that are not yet removed (S9).

At this time, through the separation membrane 101, in particular the hollow fiber membrane can effectively remove the microorganisms that may be contained in the solid-liquid separation supernatant water can not only prevent the water quality is degraded by the microorganisms, but also the raw water quality of the initial livestock manure In comparison, the biological oxygen demand (BOD) and insoluble suspended matter (SS) have a removal efficiency of approximately 100%, and total nitrogen (TN) and total phosphorus (TP) also have a removal efficiency of 60% to 80% or more.

Here, through the conveying pump 103 provided in the membrane separation tank 100, the treated water flowed into the membrane separation tank is disposed of in some way so as not to affect the membrane separation of high concentration, or to the initial high concentration treatment process (the anaerobic tank side). It can be transported or conveyed to the liquid storage tank 130 side, it is operated in conjunction with the suction pump 102 through the water level sensor 104 can prevent the membrane damage when the membrane separator is low water level, blower 105 Membrane surface cleaning of the separation membrane 101 can be carried out through the membrane separation air line header 106 to stably supply air for cleaning the membrane surface of the separation membrane 101, and through the membrane separation suction header 107 The treated water separated from the membrane 101 can be stably sucked.

Then, the treated water (solid-liquid separation supernatant) that passed through the membrane separation tank 100 is introduced into the secondary sedimentation tank 110, in the secondary sedimentation tank 110, water contaminants contained in the solid-liquid separation supernatant (for example, Sludge containing BOD, SS, TN, TP, etc.) is treated and further purified solid-liquid separated supernatant (S10).

At this time, in the secondary sedimentation tank 110, the chemicals are put into the flocculation reaction to increase the removal efficiency of the sludge while maximizing the pH of the water quality.

For example, the sludge removal efficiency can be increased by adding aluminum sulfate and an emulsion flocculant, and the pH of the water can be adjusted by adding caustic soda.

Here too, the heavy sludge contained in the treated water by the deceleration treatment by the second rotary scraper 111 is precipitated to the lower portion of the secondary settling tank 110, thereby enabling easy discharge of the sludge, the first upper portion Recovers and removes the upper scum collected by the upper scum collecting gutter 114 through the upper scum collecting means including the scraper 113, the upper scum collecting gutter 114 and the upper scum collecting pump 115. can do.

Also, the sludge precipitated at the lower part of the secondary settling tank 110 and the scum removed from the upper portion are sent to the sludge storage tank through the first sludge discharge pump 112 and the upper scum recovery pump 115 to be treated or the liquid storage tank. Send to 130 to be used for liquid fertilization.

Finally, the treated water passing through the secondary sedimentation tank 110 is introduced into the activated carbon tank 120, and the activated carbon tank 120 removes a small amount of water pollutants that may be remaining by adsorption treatment using activated carbon. It is finally treated in the water quality state that can be completely discharged through the final outlet (S11).

At this time, the adsorption function of activated carbon removes not only a small amount of water pollutants but also turbidity and color of water.

Therefore, in the present invention, it is possible to greatly increase the purification treatment efficiency of high concentration raw water of livestock manure, and to make the livestock manure fully dischargeable, and to treat water in a water quality state below the discharge standard of the aqueous treatment, such as soil or river. Environmental pollution can be prevented.

It will be appreciated by those skilled in the art that changes may be made to the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

10: raw water storage tank 11: the first raw water feed pump
20: solid-liquid separation tank 21: solid-liquid separation water transfer pump
30: flow rate adjusting tank 31: second raw water feed pump
32: first cross-sectional underwater stirrer 40: anoxic tank
41: second cross-sectional underwater stirrer 50: first post-denitrification tank
51: 3rd directional underwater stirrer 60: 1st aeration tank
61: microbial incubator 62: membrane diffuser
63: internal return pump 70: primary sedimentation tank
71: first rotary scraper 72: first sludge discharge pump
80: second post-denitrification tank 81: fourth cross-sectional underwater stirrer
90: secondary aeration tank 91: membrane diffuser
100 membrane separation tank 101 separation membrane
102: suction pump 110: secondary sedimentation tank
111: second rotary scraper 112: second sludge discharge pump
120: activated carbon 130: liquid storage tank

Claims (7)

Raw water storage tank for storing high concentration raw water of livestock manure, the first raw water transfer pump is installed for the transfer of raw water;
It is installed to remove the sludge contained in the high concentration raw water and the solid-liquid separation after the coagulation treatment according to the chemical input by receiving the high concentration raw water from the raw water storage tank, the solid-liquid separation water transfer pump is connected to the solid-liquid separation water transfer pump Separator;
The solid-liquid separator separated through the solid-liquid separator flows in, and the flow rate of the solid-liquid separator is adjusted through a second raw water transfer pump, and a transverse type agitator is installed to serve as an oxygen-free tank for removing nitrogen components. One flow adjustment tank;
Oxygen-free tank which flow-adjusted solid-liquid separation water flows through the said flow adjustment tank, and is provided for denitrification and organic matter removal, and installed the transverse direction underwater stirrer;
A first post-denitrification tank provided for denitrification and organic matter removal from the solid-liquid separation water in a continuous process following the anoxic tank, and installed with a transverse stirrer;
The first aeration treatment using microorganisms and air with respect to the treated water passing through the first after denitrification tank is provided to remove organic matter, a microbial incubator and a membrane diffuser for supplying microorganisms and air are installed, and the first aeration treatment water. A primary aeration tank equipped with an internal return pump for returning to an anoxic tank for use in denitrification;
The sludge is received by receiving the treated water passing through the primary aeration tank, and only the solid-liquid separation supernatant is provided to the second after-denitrification tank, which will be described below. A primary sedimentation tank equipped with a first sludge discharge pump;
A secondary after-denitrification tank receiving solid-liquid separation supernatant from the primary sedimentation tank, and having a transverse hydrotherapy stirrer for secondary denitrification;
A secondary aeration tank provided for removing organic matter through a secondary aeration treatment with respect to the treated water passing through the second after denitrification tank, and having a membrane diffuser installed therein;
Stable suction and transfer of the separation membrane and membrane separated treatment water to filter out the remaining microorganisms that have not yet been removed by receiving the solid-liquid separated supernatant water passed through the primary sedimentation tank or the secondary aeration treated water passed through the secondary aeration tank. A membrane separation tank having a suction pump for treatment;
It is provided to treat the sludge containing water pollutants contained in the treated water passed through the membrane separation tank, the second rotary scraper for the sedimentation and discharge of the sludge and the second sludge discharge pump for the transfer treatment is provided Secondary settling tank; And
An activated carbon tank for adsorbing and removing a small amount of water pollutant remaining in the treated water passing through the secondary precipitation tank using activated carbon; Livestock manure treatment system comprising a.
The method of claim 1,
The membrane separation tank may include a conveying pump for partially disposing of the treated water introduced on the membrane separation tank or effecting the conveyance or transport to the liquid storage tank side in a high concentration treatment process so as not to affect the membrane separation of high concentration;
It is interlocked with the second feed water pump of the flow adjustment tank at the high water level in the membrane separation tank to prevent overflow due to the high water level in the process after the flow adjustment tank, and two are installed to interlock with the suction pump at the low water level of the membrane separation tank. Water level sensor;
A blower for use in cleaning the membrane surface of the separator;
A membrane separation air line header for stably supplying air for cleaning the membrane surface of the separation membrane; And
A membrane separation suction header for stably suctioning the treated water separated from the membrane; Livestock manure treatment system, characterized in that is further provided.
The method of claim 1,
A liquid storage tank for receiving a sludge generated in the primary sedimentation tank, a membrane separation tank, and a secondary sedimentation tank to perform aeration treatment for liquefaction and liquid spraying; Including more;
Livestock manure treatment system, characterized in that configured to treat the livestock manure sludge by receiving the final treated water passed through the activated carbon.
The method of claim 1,
The first settling tank and the second settling tank is located in the upper settling tank, respectively, the upper scraper to be rotated in the same manner as the rotary scraper, and the upper scum collecting gutter for collecting the scum floating sludge suspended by the rotation of the upper scraper; Livestock manure, characterized in that configured to increase the sludge removal efficiency by further installing an upper scum removal means including an upper scum recovery pump for recovering and removing the scum collected by the upper scum collection gutter Processing system.
A first step of separating solid-liquid raw water from livestock manure using a fluidized plate screw-type solid-liquid separator, while solid-liquid separation is carried out by coagulation reaction through chemical input;
A second step of sending the solid-liquid separation water passed through the first step to a flow adjusting tank so as to adjust the processing flow rate, and performing a role as a first anoxic tank by stirring through a first cross-sectional underwater stirrer;
The denitrification treatment and organic matter are removed by anoxic stirring through a second transverse agitator to the solid-liquid separation tank adjusted by the flow rate through the second step, and the first aeration treatment water biologically treated by the microorganism is returned and received. A third step of increasing the denitrification treatment efficiency using the contained nitrate nitrogen;
A fourth step of removing the denitrification and organic matter by stirring the solid-liquid separated water which has passed through the third step in a continuous process through a third transverse agitator;
The first aeration treatment water to remove organic matter by biological treatment using the microorganisms introduced through the microorganism culturer and the first aeration treatment by air supply for the treated water after the fourth step, and to increase the denitrification efficiency by the active microorganisms. A fifth step of carrying back to the third step;
A sixth step of sedimenting and separating the sludge by the deceleration treatment through the first rotary scraper to the first aeration treated water that has passed through the fifth step, and sending only the solid-liquid separation supernatant of the upper part to the next seventh step;
A seventh step of denitrifying the solid-liquid separated supernatant after the sixth step by a stirring treatment using a fourth transverse agitator;
An eighth step of removing organic matter by secondary aeration by air supply to the solid-liquid separated supernatant subjected to secondary denitrification through the seventh step;
A ninth step of removing the remaining microorganisms and water contaminants that have not yet been removed by physical filtration using a separation membrane for the solid-liquid separated supernatant water passed through the sixth step or the secondary aeration treated water passed through the eighth step;
The sedimentation of sludge is separated by deceleration through the first rotary scraper to the membrane-separated solid-liquid separated supernatant after the ninth step, and only the solid-liquid separated supernatant is sent to the next eleventh step, but coagulated through chemical input. A tenth step of controlling the pH of the reaction treatment and water quality; And
An eleventh step of finally treating a small amount of water pollutant remaining in the solid-liquid separated supernatant having passed through the tenth step into an aqueous state that can be completely discharged by adsorption using activated carbon; Livestock manure treatment method comprising a.
The method of claim 5, wherein
In the sixth step and the tenth step, respectively, the upper scum removal recovery means is installed so that the scum contained in the solid-liquid separated supernatant can be recovered and removed. Livestock manure, characterized in that the treatment method.
The method of claim 5, wherein
In the ninth step, when the solid-liquid separated supernatant water passed through the sixth step or the secondary aeration treatment water passed through the eighth step flows into a high concentration, it is transferred to the third step or the liquid storage tank to the third step so as not to affect the membrane separation. Livestock manure treatment method characterized in that the treatment.

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