KR100448409B1 - Using non-toxicological medias in microbiologies, wastewater disposal plant for wastewater, domestic animals and night soil - Google Patents

Abstract

The present invention is mainly used to purify, process, and liquidize wastewater, high concentration livestock wastewater, and manure by microorganisms, and aquatic reaction zones are formed inside the reactor by various media and air circulation apparatuses attached and symbiotic with natural microorganisms. The sediment at the bottom of the sedimentation tank and the suspended matter at the top of the sedimentation tank are returned to the reactor to promote microbial decomposition and to produce a liquid ratio suitable for concentration in the middle of the wastewater treatment connected in series and parallel, and suitable for effluent at the final stage. The present invention relates to a wastewater, a livestock wastewater and a manure treatment device using non-toxic media capable of being purified so as to maintain a constant temperature by means of thermal insulation, and having a wastewater inflow pipe 21 and a discharge pipe 22. ), And the adherent microorganism media 30 inclined in the water inside the reactor 20 and the adherent microorganism media 30 at the lower side. The microbubble generating device 32 for generating microbubbles upward toward the adherent microorganism media 30 and the flow of wastewater from the side of the adherent microorganism media 30 to form an upward flow of the wastewater. It is composed of an air circulation device 40 to circulate in the reaction tank along the periphery of (30).

Description

Using non-toxicological media in microbiologies, wastewater disposal plant for wastewater, domestic animals and night soil}

The present invention mainly relates to wastewater and livestock wastewater and manure treatment apparatus using non-toxic media used to purify wastewater and high concentration livestock wastewater by microorganisms, and more specifically, inside the reactor by the attached microorganism media and air circulation system. Aqueous reaction zones are formed, and precipitates and suspended solids are returned to the reactor to promote microbial decomposition and to produce liquid ratios suitable for concentrations in the middle of the wastewater treatment system connected in series and parallel. The present invention relates to a wastewater, livestock wastewater and manure treatment device using non-toxic media capable of purification.

In general, livestock manure has a biological oxygen demand (BOD) of more than tens of thousands of ppm (e.g., 20000 ppm). Conventional vibrating screen method, pressure flotation method, flocculant treatment method, activated sludge method, rotation Although there are many wastewater treatment methods that use physical, chemical, and microbiological methods such as cylinder method (RBC method) and contact treatment method (HBC method), waste water with high BOD, such as livestock manure, is difficult to treat, and thus it is less than discharged water quality. It is being discharged to rivers, which has led to very serious water and environmental pollution.

That is, in the conventional wastewater treatment method, the vibrating screen method is to drop the wastewater and waste onto the inclined vibrating screen so that foreign matters contained in the wastewater are filtered out on the vibrating screen, and only the wastewater falls under the vibrating screen to be separated. Electric power was wasted to move the wastewater, and it was not enough to purify the wastewater to meet the effluent standard, only to remove relatively large foreign substances.

In addition, the pressure flotation method generates bubbles under the reaction tank to apply a floating force to the foreign matter remaining in the water so that the foreign matter floats on the surface, and then removes the foreign matter by sweeping the water surface. It is effective only in the removal of organic matter dissolved in the water or the removal of foreign matter in the form of very small particles is not effective, and consumes a lot of power because it has to give mechanical movement when sweeping the foreign matter on the water surface Had.

In addition, the coagulant treatment method is a method of coagulation treatment by adding a large amount of chemicals such as a coagulant, and thus, expensive coagulant has to be used, and thus, the treatment cost is very expensive. It must be treated non-toxic after the post-treatment process, but at this time also had the problem that the toxicity is not completely removed.

In addition, activated sludge method is called "aeration method", and it is designed to promote the organic decomposition of aerobic microorganisms by increasing the concentration of dissolved oxygen by generating bubbles in the water and supplying a large amount of oxygen in the water. Subsequently, since the purification efficiency is low and suitable for low concentration wastewater purification, it is not effective for the purification of high concentration wastewater like livestock wastewater.

In addition, the rotary cylinder method is dissolved horizontally by installing the horizontally on the surface of the reaction tank so that the lower part of the drum formed with a plurality of holes to be submerged in water, the upper part is located in the air and then rotate the drum to increase the air contact time and area of the waste water. It is intended to increase the concentration of oxygen, but it is effective for low concentration wastewater purification, but high concentration livestock wastewater causes frequent breakdown during operation because manure and food wastes in the wastewater get stuck in drums or fill holes. Purification was difficult to use.

In addition, the contact treatment method is to break down the organic matter by microorganisms by submerging several strands of microorganism-attached fibers under the surface of the water and then leaving them under water. Also, during high concentration wastewater purification, such as livestock wastewater, manure or food waste It is not suitable for high concentration wastewater purification because foreign substances such as these adhere to the microorganism-attached fibers and kill the microorganisms native to the microorganism-attached fibers.

In addition, although livestock manure contains many organic matters and effective ingredients as fertilizers such as nitrogen, phosphorus and suspended solids, the existing treatment system is a purification device for the sole purpose of separating solids and liquids and lowering BOD. Have been made, the recycling rate of resources had a significant drop.

On the other hand, agricultural land in our country is acidified by excessive use of chemical fertilizers, resulting in less agricultural productivity, and the use of natural fertilizers is recommended due to poor quality of crops. Since it was only composted to produce natural fuel furnaces, there was a limit to the production volume, and the high price prevented the supply.

The present invention has been made to solve the above problems, the object of which is to purify the livestock wastewater of high concentration according to the effluent standard, and the wastewater using non-toxic media that can produce a liquid concentration of the appropriate concentration in the middle of the purification process and Livestock wastewater and manure treatment device.

In order to achieve the object of the present invention, by maintaining a constant temperature by the insulating means, a reaction tank having a waste water inlet pipe and an outlet pipe, and the attached microorganism media inclined in the water inside the reactor, and the lower side of the attached microorganism media Microbubble generating device for generating fine bubbles upward toward the adherent microorganism media, and an air circulation device that forms a flow upward from the side of the adherent microorganism media so that the waste water can circulate along the periphery of the adherent microorganism media It is composed of wastewater, livestock wastewater and manure treatment device using non-toxic media.

1 is a view schematically showing the configuration of wastewater and livestock wastewater and manure treatment apparatus using non-toxic media according to the present invention

Figure 2a is a cross-sectional view showing another example of the sedimentation tank inlet in the present invention

Figure 2b is a cross-sectional view showing another example of the sedimentation tank inlet in the present invention

3 is a view showing a configuration example for producing a liquid ratio by connecting the wastewater and livestock wastewater and the manure treatment device using a non-toxic media according to the present invention in series and parallel

* Explanation of Signs of Major Parts of Drawings *

20: reactor 21: waste water inlet pipe

22: discharge pipe 23: heat insulation pipe

24: heat insulating material 25a: the reactor outer wall

25b: inner wall of the reactor 30: adherent microorganism media

32: microbubble generating device 34: underwater reaction zone

40: air circulation device 50: sedimentation tank

60: sedimentation tank separation wall 61: sediment return passage

62: float rise portion 63: sedimentation tank inlet

64: water flow forming plate 65: sediment inclined sliding plate

66: float guide plate 70: reactor bulkhead

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

As shown in FIG. 1, the temperature is maintained by the heat insulating means, and the reaction tank 20 having the wastewater inflow pipe 21 and the discharge pipe 22 is inclined in the water inside the reaction tank 20. Attached microorganism media (30), microscopic bubble generator 32 for generating fine bubbles from the lower side of the attached microorganism media (30) toward the attached microorganism media (30), and the attached microorganism media (30) It is composed of an air circulation device 40 to form a flow upward from the side of the) so that the waste water circulates along the periphery of the adherent microorganism media (30).

Here, the sedimentation tank 50 is formed at one side by vertically partitioning between the attachment microorganism media 30 and the discharge pipe 22 in the reaction tank 20, and a bottom of the sediment return passage forming a gap with the bottom surface of the reaction tank 20. (61) and a sedimentation tank dividing wall (60) having a float rise part (62) forming a gap with the wall of the reaction tank (20) at the top, and a sedimentation tank inlet (63) in the center.

In addition, the wastewater inflow pipe 21 is interposed between the inner wall surface of the reaction tank 20 and the adherent microorganism 30 so that the influent water and the underwater reaction zone 34 above the adherent microorganism media 30. Reactor partition wall (70) for dividing) was installed.

Insulating means for maintaining a constant temperature of the reaction tank 20 may be composed of a heat insulating pipe 23 passing through the reaction tank 20 in the water.

In addition, the reactor 20 is filled with a heat insulating material 24, the inside of the reaction tank outer wall 25a and the reaction tank inner wall 25b to protect the outside of the heat insulating material 24 and maintain the shape of the reaction tank 20. The reactor outer wall (25a) and the reactor inner wall (25b) is preferably made of stainless steel to suppress the occurrence of rust, but not necessarily limited to this, cement or synthetic resin (e.g. PVC), etc. It may be configured alone or in combination.

The sedimentation tank inlet 63 located in the middle of the sedimentation tank dividing wall 60 may be formed in a zigzag form as shown in FIGS. 1 and 2A or in the form of a corrugated pipe as shown in FIG. 2B. When the wastewater flows into the settling tank 50, by adding resistance, it was configured to block some of the kinetic energy inside the reactor 20 from being transferred into the settling tank 50.

In addition, the settling tank inlet 63 is formed in a form inclined downward from the reaction tank 20 toward the settling tank 50 so as to have a structure that is hardly affected by the air circulation device 40.

On the top of the settling tank separation wall 60 was installed a water flow forming plate 64 for guiding the flow from the air circulation device 40 to the upper float rise portion 62 of the settling tank 50, the float The riser 62 was configured to be able to return to the reaction tank 20 the float floating on the settling tank 50 by installing a floating guide plate 66 bent toward the reaction tank 20 and extending from the water to the water surface.

In addition, a precipitate inclined sliding plate 65 for returning the precipitate, which sank downward in the corner portion of the settling tank 50, to the reactor 20 through the sediment return passage 61 was installed.

Here, the deposit inclined sliding plate 65 may be formed in a curved shape.

The adherent microorganism media (30) is installed inclined in the range of 15 ~ 75 °, the inside contains a large amount of non-toxic materials, such as PVC containers, yogurt bottles, gravel, pumice, porous particles attached to the surface, the outside of the It can be formed to wrap with wire or plastic net to maintain its shape.

On the other hand, as shown in Figure 3 attached to the reactor 20 in series or in parallel from the waste water supply tank 90, in the middle of the opening and closing valve (V1, V2, V3, V4, V5, V6, V7) and liquid storage tanks (80, 81) were placed so that the liquid concentration of the proper concentration can be extracted and used in the middle of the purification process.

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

As shown in FIG. 1, when the wastewater of high concentration (BOD 10000 or more), such as livestock wastewater and manure, flows into the reaction tank 20 through the wastewater inflow pipe 21, the wall of the reaction tank 20 is shown. And flows to the bottom of the reactor 20 while descending through the underwater passage between the reactor wall 70.

At this time, since the flow of water is formed from the lower side to the upper side by the relatively large air bubbles formed by the air circulation device 40 located at the bottom of the reaction vessel 20, part of the waste water introduced into the reaction vessel 20 is partially At the bottom of the reaction vessel 20, the microbubble generator 32 passes downward and flows toward the water surface, and the remaining part is mixed with oxygen supplied by the microbubble generator 32 in a stable state to adhere to the microorganism media 30. It will flow slowly toward the bottom of the.

In this process, the waste water supplied to the adherent microorganism media 30 by the microbubble generating device 32 is decomposed by the adherent microorganisms while passing through the adherent microorganism media 30 to supply oxygen to the aerobic microorganisms. Since the microorganism media 30 are inclined, the microbubbles and the waste water move evenly along the bottom of the adherent microorganism media 30 to increase the residence time, and at the same time, the microbial purification action is evenly applied to the entire surface of the microorganism media 30. It will act to distribute.

At this time, a circular flow is formed around the adherent microorganism media 30, but the decomposition of organic matter by the microorganism is promoted while the underwater reaction zone 34 is formed inside thereof.

That is, since the waste water circulates around the underwater reaction zone 34 formed in the reaction tank 20 by the air circulation device 40, the residence time in the underwater reaction zone 34 is increased, thereby purifying the purification operation. At the same time, the purification efficiency is increased by even contact and movement between the waste water circulated by the air circulation device 40 and the microorganisms located in the underwater reaction zone 34.

On the other hand, the waste water, which is primarily decomposed in the sedimentation tank 50, is partially introduced into the sedimentation tank 50 through the sedimentation tank inlet 63 formed in the middle of the sedimentation tank dividing wall 60, and the reaction tank ( 20) Among organics that cannot be decomposed inside, heavy organics sink to the bottom to form sediment, and light organics float on the water to form floats.

At this time, when the sedimentation tank inlet 63 is formed in a zigzag form as shown in FIG. 2A or a corrugated pipe form as shown in FIG. 2B, the sedimentation tank inlet 63 adds resistance to the flow of the wastewater, and thus has the wastewater contained in the reactor 20. As some of the kinetic energy is dissipated is introduced into the settling tank 50 in a stable state.

Furthermore, since the settling tank inlet 63 is inclined downward from the reaction tank 20 toward the settling tank 50, the settling tank 50 is hardly affected by the air circulation device 40, so that the settling tank 50 remains static. do.

Since the sediment in the first purified waste water introduced into the sedimentation tank 50 is not accumulated on the bottom by the sediment slope sliding plate 65 installed at the corner of the sedimentation tank 50, the sedimentation tank separation wall 60 and the bottom surface This is returned to the reaction tank 20 through the sediment return passage (61) to circulate again inside the reaction tank 20 by the air circulation device 40 installed inside the reaction tank 20, and undergoes a microbial decomposition process, sedimentation tank (50) The float floated on the water surface through the float riser 62 of the upper portion returns the flow and the flow of water partially guided by the water flow forming plate 64 installed on the sedimentation vessel separation wall 60 to the reactor 20. Float on the water while being returned to the water surface of the reaction vessel 20 by the float guide plate 66, and then led to the downward water stream formed inside the reaction vessel 20 by the wastewater inflow pipe 21 to the bottom of the reaction vessel 20. Ash while sitting It is subjected to the process.

In addition, the thermal insulation pipe 23 positioned in the water of the reaction vessel 20 serves to maintain an appropriate temperature to promote microbial decomposition in the reaction vessel 20, and further, the thermal insulation material 24 filled in the reaction vessel 20. ) Blocks the outside air from being transferred to the inside of the reactor and at the same time serves to block the heat of the reactor 20 from being released to the outside.

In addition, the discharge pipe 22 located in the middle of the settling tank 50 can discharge the secondary purified wastewater in the water separated from the sediment and the suspended matter to the outside.

On the other hand, as shown in Figure 3, when the liquid ratio of different concentrations produced in one production facility valves (V1) (V2) (V3) (V4) (V5) (V6) installed in the middle of the wastewater treatment process Using the V7 to extract the wastewater to the next stage and stored in the liquid storage tank (80, 82) can be utilized as a liquid fertilizer production facilities of various concentrations.

As described above, the present invention has a structure that circulates the waste water by circulating the water reaction zone formed in the reaction tank by the air circulation device, so that the residence time is increased and the purifying action is promoted. Purification efficiency is increased by even contact between microorganisms, and because it is configured to extract liquid fertilizers with an appropriate level of BOD in the middle stage of the livestock wastewater purification process, it has the effect of recycling waste resources and high concentration. It is also effective to treat various sewage and wastewater such as domestic wastewater, factory wastewater, and manure as well as animal wastewater which is organic wastewater.

Claims (14)

A reaction tank 20 which maintains a constant temperature by the insulating means and has a waste water inlet pipe 21 and a discharge pipe 22; Attached microorganism media 30 inclined in the water in the reaction tank 20; A microbubble generating device (32) for generating fine bubbles upward from the lower side of the adherent microorganism media (30) toward the adherent microorganism media (30); Wastewater using non-toxic media, characterized by consisting of an air circulation device 40 to form a flow upward from the side of the adherent microorganism media (30) to circulate along the periphery of the adherent microorganism media (30) Livestock wastewater and manure treatment equipment. According to claim 1, wherein the microbial medium 30 and the discharge pipe 22 inside the reactor 20 vertically partitioned to form a settling tank 50 on one side, the bottom surface of the reaction tank 20 and It is further provided with a sedimentation tank separation wall 60 having a sediment return passage 61 forming a gap, a float rising part 62 forming a gap with a wall of the reaction tank 20 at the top, and a sedimentation tank inlet 63 in the center. Wastewater and livestock wastewater and manure treatment device using non-toxic media characterized in that. According to claim 1, wherein the waste water inlet pipe 21 is interposed between the inner wall surface of the reaction tank 20 and the attached microorganism media 30, the inflow water and the water reaction between the attached microorganism media (30) Wastewater and livestock wastewater and manure treatment apparatus using a non-toxic media, characterized in that the reaction tank partition wall (70) for further separating the region (34). According to claim 1, wherein the thermal insulation means for maintaining a constant temperature of the reaction tank 20 is a thermal pipe (23) passing through the water of the reaction tank 20, characterized in that the wastewater and livestock wastewater using non-toxic media and Manure treatment device. The heat insulating material 24 is installed in the inside of the said reaction tank 20, The outside of this heat insulating heat insulating material 24 is carried out in the reaction tank outer wall 25a and the inside of the reaction tank (5). 25b) wastewater and livestock wastewater and manure treatment apparatus using non-toxic media, characterized in that it is configured to wrap. The method of claim 2, wherein the sedimentation tank inlet 63 located in the middle of the sedimentation tank separation wall 60 is formed in a zigzag form to resist the inflow of the waste water into the sedimentation tank 50, thereby allowing the inside of the reaction tank 20. Wastewater and livestock wastewater and manure treatment device using a non-toxic media, characterized in that configured to block some of the kinetic energy is transferred into the settling tank (50). The method of claim 2, wherein the sedimentation tank inlet 63 located in the middle of the sedimentation tank separation wall 60 is formed in the form of a corrugated pipe to add resistance to the inflow of sewage and sewage tank 50 into the reaction tank 20. Wastewater and livestock wastewater and manure treatment device using a non-toxic media, characterized in that configured to block some of the kinetic energy is transferred into the settling tank (50). 3. The water flow forming plate (64) according to claim 2, wherein the flow from the air circulation device (40) at the upper end of the settling tank dividing wall (60) is directed to the upper float rise portion (62) of the settling tank (50). Wastewater and livestock wastewater and manure treatment device using non-toxic media, characterized in that further provided. According to claim 2, wherein the sediment inclined sliding plate 65 is further provided for returning the precipitate settled down to the corner portion inside the sedimentation tank 50 to the reaction vessel 20 through the sediment return passage 61. Wastewater and livestock wastewater and manure treatment device using a non-toxic media characterized in that. The non-toxic media according to claim 2 or 8, further comprising a float guide plate (66) which is bent toward the reaction vessel (20) and extends from the water to the surface of the float rise portion (62). Wastewater and livestock wastewater and manure treatment device using. The method of claim 1, wherein the inclination angle of the adherent microorganism media (30) is a wastewater, livestock wastewater and manure treatment apparatus using non-toxic media, characterized in that determined in the range of 15 ~ 75 °. The wastewater and livestock wastewater and manure treatment apparatus using non-toxic media according to claim 1, wherein the reactor 20 is connected in plural, and the liquid ratios of different concentrations are drawn from the middle. The non-toxic medium according to claim 6 or 7, wherein the settling tank inlet 63 formed in the middle of the settling tank dividing wall 60 is inclined downward from the reaction tank 20 toward the settling tank 50. Wastewater and livestock wastewater and manure treatment device using. delete