KR101345790B1 - Purifying and reusing system of wastewater using microbial permanent cultivation structure and surplus wastes - Google Patents

Abstract

The present invention relates to an apparatus for purifying and reusing wastewater, using waste filtering material and permanent cultivation structure of microorganism. The successive purification system comprises: an anaerobic tank, a polymer aeration tank, an anaerobic media tank, an aerobic media tank, a settling tank, and a discharging tank. The anaerobic tank comprises successive four steps. The first fourth anaerobic tanks have the same volume, and the volume of the second and third anaerobic tanks are 40-60 % of the first and fourth tanks. The polymer aeration tank comprises first and second polymer aeration tanks. The wastewater is successively purified through the first anaerobic media tank, the first aerobic media tank, the second anaerobic media tank, the second aerobic media tank, the settling tank, and the discharge tank. The first and second polymer aeration tanks and first and second aerobic media tanks are aerated by the air supplied by a blower. Supernatant water is induced by a discharge pipe from the fourth anaerobic tank to the first polymer aeration tank, and from the first anaerobic media tank to the discharge tank. The settling tank is connected to the first polymer aeration tank by a passage. The height of the anaerobic tank is 120-170 % of the heights of the polymer aeration tank, anaerobic and aerobic media tanks, settling tanks and discharge tank. Therefore, it is possible to manufacture the apparatus in a tiny size even with the short staying time and high purification ability, to use various raw materials for the manufacture, and to install the apparatus immediately as a movable type for hard-to-develop area, environment protection area, and mountain area etc. [Reference numerals] (AA) Upper transit;(BB) Lower transit

Description

Purifying and reusing system of wastewater using microbial permanent cultivation structure and surplus wastes}

The present invention relates to a permanent culture structure of microorganisms, and more particularly, it is possible to remove the denitrification and dephosphorization, thereby protecting and restoring the environment. The present invention relates to a permanent culture structure of microorganisms that can use and a wastewater purification and reuse device using waste media.

In particular, the present invention relates to a device that can be installed immediately in a non-development area, environmental protection zone, island mountainous region, such as to be immediately removable to block the pollutants and to permanently recycle water resources.

In addition, the present invention is to improve the efficiency of anaerobic digestion fixation, and relates to a device that allows the anaerobic strains to be stably propagated by maximally utilizing the water pressure and density by constantly rowing the longitudinal specifications of the anaerobic tank.

Republic of Korea Patent No. 537143 (Registration Date: 2005.12.09., Name of the invention: high rate microbial reaction stirrer for waste water and high concentration organic waste water purification) Referring to Figure 1 and 2, microbial reaction for purifying waste water and high concentration organic waste water In the stirrer, a plurality of reaction tanks including a denitrification reaction tank 12, an activation tank 14, and a nitrification reaction tank 16 are connected in a horizontal direction to contact contaminants with microorganisms; Raw water inlet pipe 20 for supplying waste water to the upper portion of the denitrification tank 12; An internal conveying pipe (30) for returning the waste water inside the nitrification reaction tank (16) to the denitrification reaction tank (12); An air inlet pipe (50, 50a, 50b) for supplying air into the microorganism reaction stirrer (10), respectively; A gas discharge pipe 60 for discharging the gas to the top of the plurality of reaction tanks 12, 14, and 16, respectively; A treatment liquid discharge pipe 70 connected to one side of the gas discharge pipe 60 and the nitrification tank 16 to discharge the purified wastewater treatment liquid; A high-rate microbial reaction stirrer for purifying wastewater and high concentration organic wastewater has been proposed, including an underwater air pump (121, 141, 161) installed under each of the plurality of reaction tanks (12, 14, 16).

This conventional technology is said that the microbial reaction agitator for wastewater and high concentration organic wastewater purification is smoothly denitrified compared to the conventional vertical microbial reaction agitator, and the sludge is easily discharged to the sludge outlet, and the energy can be greatly reduced when the reaction agitator is operated. It has been argued, however, that it cannot remove phosphorus from waste water and has a complicated structure.

Republic of Korea Patent No. 876615 (Registration Date: 2008.12.23., Name of the invention: wastewater purification apparatus using a microbial media), referring to Figure 3, a septic tank system for treating wastewater introduced from the outside by anaerobic and aerobic microorganisms In the waste water, the waste water introduced to the bottom so that the scum does not occur through the first microbial media layer 130 containing the anaerobic microorganisms provided on the upper side is adsorbed, decomposed and discharged, methane generated during the decomposition process Deodorizing tank 100 for discharging and ammonia to the outside; An aerobic tank 210 in which aerobic microorganisms are accommodated, a merged tank 220 in which aerobic and anaerobic microorganisms coexist, an activated carbon tank 240 in which an anaerobic microorganism is accommodated, and an activated carbon tank 240 in which an activated carbon filter medium 242 is accommodated are sequentially provided. A main turbidity improvement tank 200 which sequentially discharges the wastewater introduced from the deodorization tank 100 into the respective tanks to improve turbidity and discharge the waste water into domestic water; Supplying air to the exhalation tank 210 and the merger tank 220, and discharges nitrogen generated in the exhalation tank 210, the merger tank 220, anaerobic tank 230 and the activated carbon tank 240 to the outside, the Sewage water purification apparatus using a microbial media has been proposed, comprising a; piping unit 300 for discharging the living water filtered in the main tank tank improvement tank (200).

This conventional technology does not generate scum on the surface of water because waste water (oil, etc.) is adsorbed and decomposed while the waste water passes through the first microbial media layer, and thus, methane or ammonia generated by microbial decomposition is well discharged to the outside. While it claims that the overall purification performance is guaranteed without overwhelming the machine, large-scale construction work is required and there is no specific configuration that can smoothly remove the phosphorus and nitrogen of the waste water. There is no problem.

Republic of Korea Patent No. 1237262 (Registration date: 2013.2.22., Name of the invention: microbial agent having a wastewater treatment ability, its manufacturing method and wastewater purification method) is S1) anaerobic reactor and the organic sludge layer formed on the bottom and Filling the waste water of the site to be purified in the reaction tank consisting of aerobic reactor with an inlet formed by concentrically inserted three pipes having different diameters; S2) a process of connecting the innermost pipe of the inlet formed by inserting three pipes of the reaction tank of S1) into an air pump and a microorganism inlet, and administering air, microbial feed, and mixed microorganisms; And S3) injecting air into the aerobic reaction tank of S1) intermittently to incubate the microorganisms in the anaerobic and aerobic reaction tanks to adapt to the wastewater; Thereafter, a method for purifying wastewater, characterized in that the second spraying of the microbial agent under the same conditions after 7 days of the first spraying, has been proposed.

This prior art claims that the biological healing of wastewater such as reservoirs, rivers, swamps, waterways, etc. can be effectively achieved, but inconvenient use and additional costs incurred due to the limited use of only microbial agents suitable for this method. There is a problem.

Republic of Korea Patent No. 1052543 (Registration Date: 2011.6.13., Name of the invention: Wastewater purification device using microorganisms) is a drum screen and SS suspended solids (Suspended Solid) (10) A drum screen tank (10-1) for removal with -1a); A second flow rate adjustment tank 20-1 for maintaining the sewage carried through the drum screen tank 10-1 at a predetermined level; A third reactor (30-1) for firstly purifying sewage through the flow control tank (20-1) with aerobic bacteria and anaerobic bacteria through wood chips having increased porous number by treating coniferous chips or conifers with far infrared rays; A fourth reactor (40-1) filled with activated carbon for secondary purification by receiving water in the third reactor (30-1); Sterilization tank (50-1) for storing and sterilizing the water supplied from the fourth reaction tank (40-1); consisting of, the third reaction tank (30-1) is formed on the lower surface is inclined to one side, sewage A diffuser 31-1 for distributing and supplying air to the air, a sewage transport pipe 32-1 into which sewage flows, a discharge pipe 33-1 provided at the end of the sewage transport pipe 32-1, and a lower surface Discharge is installed in the space formed to discharge the water flowing into the space between the porous plate 34-1 and the lower surface of the porous plate 34-1 and the third reactor (30-1) spaced apart from the predetermined interval from the outside A wastewater purification apparatus utilizing microorganisms comprising a pump 35-1 has been proposed.

This conventional technology is a wastewater purification device utilizing microorganisms can continuously purify the wastewater discharged from the flush toilet in the first reaction tank filled with wood chips that can easily parasitic aerobic bacteria and anaerobic bacteria and purify the wastewater While claiming that it is possible to recycle circulating wastewater of unpaid water-free undischarged water that can be reused without discharging the clean water, it is impossible to manufacture a mobile type that is suitable for application in undeveloped areas, environmental protection areas, and mountainous areas.

The object of the present invention created to solve the above problems, the removal effect of denitrification, dephosphorization is high, it is possible to protect and restore the environment, as well as a high purification ability even in a short residence time, it is possible to manufacture a very small and various raw materials It is an object of the present invention to provide a permanent culture structure of microorganisms that can be used and a wastewater purification and reuse device using waste media.

The purpose of the present invention, in the sequential wastewater purification system consisting of anaerobic tank, polymer aeration tank, anaerobic media tank, aerobic media tank, sedimentation tank and discharge tank, the anaerobic tank is composed of four sequential stages of the first anaerobic tank and the fourth anaerobic tank It has the same volume, the second and third anaerobic tank is 40 to 60% of the volume of the first and second anaerobic tank, the polymer aeration tank is composed of the first and second polymer aeration tank, the first anaerobic media tank, The first and second polymer aeration tanks, the primary and the first and second polymer aeration media tank, the second anaerobic media tank, the second aerobic media tank, the sedimentation tank and the discharge tank are sequentially purified and supplied by a blower. The second exhalation media tank is aerated, and the supernatant flows into the first anaerobic tank from the fourth anaerobic tank and the drainage pipe from the first anaerobic media tank to the discharge tank. The settling tank is connected to the first polymer aeration tank by a flow path, and the height of the anaerobic tank is 130 to 170% of the height of the polymer aeration tank, the anaerobic and aerobic media tank, the settling tank and the discharge tank. It can be achieved by the wastewater purification and reuse apparatus using a permanent culture structure of the microorganism, characterized in that it has a height and waste media.

Preferably, the drain pipe installed in the first anaerobic media tank of the present invention is configured to rapidly oxidize activated sludge in an anaerobic process from the second polymer aeration tank to the first anaerobic media tank. It extends to the bottom adjacent to the jaw.

Preferably, the height of the drain pipe or the pipe from the second polymer aeration tank to the discharge tank is lowered step by step so as to implement the transfer of the supernatant water by the natural retention structure of the present invention to generate a high quality discharge water. It is characterized by.

Preferably, the first and second polymer aeration tank, the first aerobic media tank, the second anaerobic media tank and the second aerobic media tank of the present invention is filled with a non-corrosive recycling medium of less than 50mm in diameter. The non-corrosive recycling medium is characterized in that at least one or more selected arbitrarily high porosity materials, such as toothbrush, brush, pulley and yogurt bottle.

As described above, the composition of the present invention has a high purification ability even in a short residence time, so that it can be manufactured in a very small size, can be manufactured using various raw materials, and can be installed immediately in a non-developed area, an environmental protection area, a mountainous area, and the like. have.

In addition, the configuration of the present invention can be reused by purifying the material useful to nature using waste water, and because the microorganisms are permanently persisted through the anaerobic treatment process, it is possible to quickly implement the aerobic, anaerobic, anaerobic, sedimentation process after the process. Therefore, there is an effect that can reduce the residence time of the waste water to realize the miniaturization of the device.

1 and 2 is a block diagram showing a high rate microbial reaction stirrer for wastewater and high concentration organic wastewater purification according to an embodiment of the prior art.
3 is a block diagram showing a wastewater purification apparatus using a microbial media according to another embodiment of the prior art.
Figure 4 is a plan view showing a wastewater purification and reuse apparatus using a permanent culture structure and waste media of the present invention according to the present invention.
FIG. 5 is a configuration diagram showing the arrangement of FIG. 4.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

4 and 5, the wastewater purification and reuse apparatus using a permanent culture structure and waste media of the present invention according to the present invention is to treat and purify the influent sequentially and purified, four-stage anaerobic tank (1) (2) (3) (4), two-stage polymer aeration tank (5) (6), primary anaerobic media tank (7), primary aerobic media tank (8), secondary anaerobic media tank (9), secondary It consists of an exhalation media tank 10, a precipitation tank 11, and a discharge tank 12.

The wastewater purification and reuse device using the permanent culture structure of microorganisms and waste media according to the present invention has a high purification ability even in a short residence time, so that it can be manufactured in a very small size and has a feature that can be manufactured using various raw materials. .

The anaerobic tank (1) (2) (3) (4) of this invention has a four-stage structure.

Here, each of the anaerobic tanks (1), (2), (3) and (4) has a temperature sensor Tc built therein, and a temperature indicator Tm for receiving and displaying temperature information of the temperature sensor Tc is externally provided. It is installed.

Anaerobic tank (1) (2) (3) (4) according to the present invention is configured to implement a smooth process even in winter by maximizing the heat generation of wastewater influent using density and water pressure to maintain the middle temperature of 25 ℃ or more. In addition, the anaerobic tanks (1) (2) (3) (4) maintained at a moderate temperature were able to maintain a stable culture and high concentration of nitrifying bacteria with slow growth rate even under the influence of low temperature external environment such as winter season.

Here, in order to maintain such a medium temperature, the anaerobic tank (1) (2) (3) (4) of the present invention is another polymer aeration tank (5) (6), anaerobic media tank (7) (9), and aerobic media tank (8). 10), the sedimentation tank 11 and the discharge tank 12 is composed of a height of about 130 to 170%.

The first anaerobic tank 1 and the fourth anaerobic tank 4 according to the present invention have the same volume, and the second and third anaerobic tanks 2 and 3 are the first and second anaerobic tanks 1 and 4, respectively. 40 to 60% of the total.

The wastewater inflow flowing into the first anaerobic tank 1 flows into the second anaerobic tank 2 through the lower pipes of the first anaerobic tank 1 and the second anaerobic tank 2, and then continues to the second anaerobic tank 2 and the second anaerobic tank 2. 3 is introduced into the third anaerobic tank 3 through the upper conduit of the anaerobic tank 3, and is introduced into the fourth anaerobic tank 4 through the lower conduits of the third anaerobic tank 3 and the fourth anaerobic tank 4.

At this time, methane gas (CH ₄ ) is exhausted to the outside air through the discharge port of each anaerobic tank (1) (2) (3) (4).

The wastewater inflow water introduced into the fourth anaerobic tank 4 flows into the first polymer aeration tank 5 through a drain pipe.

The supernatant introduced into the first polymer aeration tank 5 is introduced into the second polymer aeration tank 6 through the upper conduits of the first polymer aeration tank 5 and the second polymer aeration tank 6.

Here, the first and second polymer aeration tanks 5 and 6 are formed at the bottom surface of the aeration tanks 5 and 6 by the air supplied by the first and second blowers B1 and B2. From aeration. Reference numerals V5 and V6 are attached to respective flow paths of the primary polymer aeration tank 5 and the secondary polymer aeration tank 6 to control the amount of air supplied from the first and second blowers B1 and B2. Valves, and VT1 and VT2 are the control valves of the respective blowers B1 and B2.

The supernatant of the second polymer aeration tank 6 flows into the first anaerobic media tank 7 through a drain pipe. Here, the drain pipe provided in the first anaerobic media tank 7 is the first anaerobic media to rapidly oxidize activated sludge in the anaerobic process from the second polymer aeration tank 6 to the first anaerobic media tank 7. It extends to the bottom adjacent part of the tank 7.

In addition, the drain pipe (YT pipe) as described above is provided to maximize the anaerobic efficiency by blocking the oxygen transfer to the fourth anaerobic tank 4 while overflowing (overflow) by the hydraulic pressure difference.

The supernatant water of the first anaerobic media tank 7 flows into the first exhalation media tank through the drain pipe, and the supernatant water of the first anaerobic media bath 8 continues to the second anaerobic media bath 9 through the drain pipe. Then, the supernatant of the second anaerobic media tank 9 flows into the second exhalation media tank 10.

Here, the first and second exhalation media tanks 8 and 10 are bottom surfaces of the media baths 8 and 10 by the air supplied by the first and second blowers B1 and B2. Aerated from

The first and second polymer aeration tanks 5 and 6, the first aerobic media tank 8, the second anaerobic media tank 9, and the second aerobic media tank 10 have a diameter of less than 50 mm. It is filled with non-corrosive recycling media. Here, the non-corrosive recycling medium is a material having high porosity, such as toothbrush, brush, pulley and yogurt bottle, it is equipped with a complex microbial carrier in the middle layer of each treatment tank to increase the growth of microorganisms and facilitate the flow of fluid. .

In addition, this structure has a feature that can be used as a filtration membrane of the active micromass by generating microbubbles during aeration from the bottom and removing excess microbial layer to block the formation of excess microbial membrane.

Moreover, this structure can improve the purification function by shortening the hydraulic retention time (HRT) due to the increase of dissolved oxygen (DO) due to microbubbles.

The supernatant of the second exhalation media tank 10 is introduced into the settling tank 11 through the upper conduit of the second exhalation media tank 10 and the settling tank 11, and soil, sand, and various residues introduced together with the supernatant water. Etc. are precipitated in the settling tank 11. Here, the sedimentation tank (11) is formed in the sedimentation basin structure of the opposite point flowing from the upper pipe to fall to prevent the excess sludge to flow into the final discharge tank (12).

In addition, excess sludge is recovered to the primary polymer aeration tank (5) through a conduit.

Reference numerals V8 and V10 denote respective flow paths of the first exhalation media bath 8 and the second exhalation media bath 10 so as to control the amount of air supplied from the first and second blowers B1 and B2. Valves mounted on the

The supernatant of the sedimentation tank 11 is introduced into the discharge tank 12 through the upper pipe of the sedimentation tank 11 and the discharge tank 12, and the purified effluent water below the final purified reference value is installed at the bottom of the discharge tank 12. It is discharged to the sea or the river through the discharge valve 30.

Here, the anaerobes or aerobic bacteria discharged from the final discharge tank 12 may be self-oxidized with the environment of a certain organic matter or less to generate bio-water below the reference value.

In addition, the second polymer aeration tank (6) to the discharge tank (12) is installed so that the height of the drain pipe or pipe lowers step by step to implement the transfer of the supernatant water by the natural retention structure to generate a high quality discharge water There is this.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

1, 2, 3, 4: anaerobic tank
5, 6: polymer aeration tank
7, 9: anaerobic media
8, 10: Exhalation Media Group
11: settling tank
12: discharge tank

Claims (4)

In the sequential wastewater purification system composed of anaerobic tank, polymer aeration tank, anaerobic media tank, aerobic media tank, sedimentation tank and discharge tank,
The anaerobic tank consists of four sequential stages, but the first and fourth anaerobic tanks have the same volume, and the second and third anaerobic tanks are 40 to 60% of the first and second anaerobic tank volumes.
The polymer aeration tank is composed of the first and second polymer aeration tank,
The first anaerobic media tank, the first aerobic media tank, the second anaerobic media tank and the second aerobic media tank, sedimentation tank and discharge tank,
The first and second polymer aeration tanks and the first and second exhalation media tanks are aerated by air supplied by a blower,
The supernatant water flows from the fourth anaerobic tank to the first polymer aeration tank and the first anaerobic media tank to the discharge tank by a drain pipe.
The settling tank is connected to the first polymer aeration tank by a flow path,
The height of the anaerobic tank has a height of 130 to 170% with respect to the height of the polymer aeration tank, the anaerobic and aerobic media tank, sedimentation tank and discharge tank,
The drain pipe installed in the first anaerobic media tank extends to the bottom adjacent to the first anaerobic media bath to rapidly oxidize activated sludge in an anoxic process from the second polymer aeration tank to the first anaerobic media bath. ,
The first and second polymer aeration tanks, the first aerobic media tank, the second anaerobic media tank and the second aerobic media tank is filled with a non-corrosive recycling media of less than 50mm in diameter, the non-corrosive recycling media Oh, waste water purification and reuse device using a permanent culture structure and waste media, characterized in that at least one or more selected randomly among the high porosity of the toothbrush, brush, pulley scrubber and yogurt bottle.
delete The method of claim 1,
Permanent culture structure of the microorganism, characterized in that the height of the drain pipe from the second polymer aeration tank to the discharge tank to be lowered step by step so as to implement the transfer of the supernatant water by the natural retention structure to produce a high quality discharge water Wastewater purification and reuse apparatus using waste media and waste media. delete

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