KR100727577B1 - Water recycling toilet sewage treatment system without water discharge - Google Patents

Abstract

A water recycling type flush toilet sewage treatment system without water discharge which substantially removes organic matters, nitrogen and phosphorous as causing materials of eutrophication, and color and odor contained in sewage by sequentially connecting concerned tanks as one system, and which is environmentally friendly by reusing used treated water without discharging to the outside is provided. A water recycling type flush toilet sewage treatment system(2) without water discharge comprises: a retention tank(8) for storing sewage containing excrements discharged from a water closet(4); an advanced treatment tank(20) connected to the retention tank to remove nitrogen, phosphorous and organic matter contained in sewage; an aerobic reactor(34) connected to the advanced treatment tank to remove organic matters contained in sewage; a bioreactor(48) connected to the aerobic reactor to finally remove residual organic matters contained in sewage; a flow equalization tank(72) which is connected to the bioreactor, in which a predetermined quantity of treated water is stored, and which controls a flow amount of the treated water; a discoloring tank(80) connected to the flow equalization tank to discolor the treated water; a treated water tank(90) which is connected to the discoloring tank and connected to the water closet through a water supply pipe(96), and in which treated water is stored; and a system stabilization tank(100) connected to the treated water tank to return the treated water to the treated water tank or discharge the treated water to the outside after storing a portion of the treated water.

Description

Water recycling toilet sewage treatment system without water discharge}

1 is a block diagram of a sewage treatment system according to the prior art.

2 is a block diagram of a sewage treatment system according to the present invention.

3 is a cross-sectional view of a reaction tower according to the present invention.

Figure 4a, 4b is a perspective view showing another embodiment of the box according to the present invention.

5 is a state diagram in which each component is connected to a control unit according to the present invention;

* Explanation of symbols for the main parts of the drawings

2: sewage treatment system 4: flush toilet

5: 1st water level sensor 6: Sewage discharge pipe

8: storage tank 10: screen

12: Storage room 14: Grinding room

16: cutter pump 18: sewage supply pipe

20: Advanced treatment tank 21, 42, 74: Return pipe

22: denitrification chamber 23: denitrification chamber

24,36: diffuser 26, 38: air pump

28: Indeon Media 30: Woodchip

32, 70, 88, 102: discharge pipe 34: aerobic reaction tank

40: filtration device 44,78: transfer pipe

46: suction pump 48: bioreactor

50: reaction column 52: column

54: Box 58: Frame

64: porous plate 66: wood chips

68: inorganic media 72: flow adjustment tank

76,108: Transfer pump 80: Decolorization tank

82: first case 84: second case

86: connector 90: treatment tank

92: second level sensor 94: third level sensor

96: water supply pipe 98: water supply pump

100: system stabilization tank 104: overflow pipe

106: supplement water pipe 110: control unit

The present invention relates to a non-discharge circulation flush toilet sewage treatment system, and more specifically, by configuring a system by sequentially connecting a storage tank, an advanced treatment tank, an aerobic reaction tank, a bioreactor, a flow rate adjustment tank, a decolorization tank, and a treatment tank. It is environmentally friendly by drastically eliminating the organic matter, nitrogen, phosphorus and color and odor that are included in sewage, and reusing the treated water without discharging it to the outside. The present invention relates to a non-discharge, circulating flush toilet sewage treatment system that can be operated stably by forming a structure in which air is naturally supplied to a box while preventing chips from being compacted and damaged by their own weight by standardizing the size.

In general, filthy water discharged from a flush toilet generates odor while containing a large amount of nitrogen and phosphorus, which are the causes of eutrophication, and nitrogen and phosphorus contained in the filthy water are used to synthesize proteins and nucleic acids for the activity and proliferation of microorganisms. It acts as an essential nutrient and surpluses are removed or discharged. Especially, when discharged to rivers or lakes, eutrophication occurs, causing water pollution.

Therefore, in the conventional sewage treatment method, a biological treatment process or a chemical treatment process is applied to remove nitrogen, phosphorus, and odor contained in the sewage, but in the case of a toilet, it is difficult to apply the chemical treatment process because there is no manager.

On the other hand, Utility Model Registration No. 321856 of the prior art, "an extinction type purifying device using an toilet" in Figure 1 as follows.

First, the storage tank 30 is connected to the toilet bowl 10, and the storage pipe 30 is coupled to the connection pipe 40 in which the cutter pump 50 is installed, and the aeration tank 60 is connected to the front end of the connection pipe 40. ) Is connected.

The aeration tank 60 is connected to the storage tank 30 by a connecting pipe 70, the aeration tank 60 is installed in the tank in which the exhaust hose (80) is installed.

Referring to the operation of the conventional technology configured as described above are as follows.

First, when the sewage flows out of the toilet bowl 10 to the storage tank 30, the sewage from the storage tank 30 is moved along the connecting pipe 40 again and crushed by the cutter pump 50 to the aeration tank 60. Will move.

Thereafter, the organic matter is removed by the aerobic microorganisms in the aeration tank 60, and at the same time, the colorless, odorless gas generated from the sewage is discharged to the atmosphere along the exhaust hose (80).

Subsequently, the purified sewage is returned to the storage tank 30 through the connecting pipe 70, and the sewage is then circulated in the same process as described above along the connecting pipe 40.

The prior art as described above has a problem that the means for purifying sewage is made only through the aeration tank 60, so that the purifying ability of the sewage is deteriorated while the removal of nitrogen, phosphorus, color and odor is made unstable.

Another problem is that the treated water is not reused through the toilet 10 and is not environmentally friendly.

Meanwhile, in the process of treating sewage as described above, a bioreactor for removing organic matter is used as a different type. Mostly, a cylindrical or square cylinder is a unitary structure, and the bioreactor is used to create an aerobic environment. An air pump for forcibly supplying air to the lower part of the reactor is used.

In the above manner, if a power failure occurs or the air pump breaks down, the air pump stops operating and does not supply air to the reaction tank. As a result, the inside of the reaction tank immediately becomes anaerobic and loses its function as a bioreactor. Done.

This conventional method maintains its function through the operation of the air pump, which has the drawback that power costs are required and system operation is unstable.

Another problem is that the structure of the reaction vessel is formed high so that a large amount of chips can be injected, and the introduced chips have a drawback that the efficiency is reduced because the chips are compacted and damaged by their own weight and are difficult to replenish and replace chips.

The present invention has been made in order to solve the above problems, the purpose is to connect the storage tank, advanced treatment tank, aerobic reaction tank, bioreactor, flow rate adjustment tank, decolorization tank, treatment tank, etc. in order to constitute a system The purpose is to provide a sewage treatment system that will drastically remove nitrogen, phosphorus, and color and odor, which are organic substances and eutrophication agents included in.

Another object is to provide an environmentally friendly sewage treatment system by allowing the used treated water to be reused without being discharged to the outside.

Another purpose is to standardize the size of the box of the bioreactor to prevent the chip from being compacted and damaged by its own weight, and to realize a structure in which air is naturally supplied to the box so that the sewage treatment system can be stably operated.

Technical configuration of the present invention for achieving the above object, the storage tank (8) for storing the sewage containing the manure discharged from the flush toilet (4); An advanced treatment tank 20 connected to the storage tank 8 to remove nitrogen, phosphorus, and organic matter contained in sewage; An aerobic reaction tank (34) connected to the advanced treatment tank (20) to remove organic matter contained in sewage; A bioreactor 48 connected to the aerobic reactor 34 to finally remove residual organic matter contained in the sewage; A flow regulating tank 72 connected to the bioreactor 48 for storing a predetermined amount of treated water and adjusting a flow rate; A decolorization tank 80 for decolorizing the treated water while being connected to the flow rate adjustment tank 72; A treatment tank 90 connected to the decolorization tank 80 to install a water supply pipe 96 to connect to the flush toilet 4 and store the treated water; The system stabilization tank 100 is connected to the treatment tank 90 and stores a portion of the treatment water and returns to the treatment tank 90 or discharges it.

2 to 5 of the present invention configured as described above, first, in the sewage treatment system 2 (see FIG. 2), a flush toilet 4 is formed while forming a water tank at the rear, and the flush toilet 4 The sewage discharge pipe 6 is installed at the lower part, and the storage tank 8 is connected to the sewage discharge pipe 6 while installing the first water level sensor 5 at a predetermined height on the inner upper wall.

In addition, the storage tank 8 is divided into a storage chamber 12 and a pulverization chamber 14 by a screen 10. The screen 10 is made of a filtering network of 20 to 50 mm so as to pass only a manure of a specific size. .

The cutter pump 16 for crushing the manure passed through the screen 10 in the grinding chamber 14 configured as described above is installed while coupling the sewage supply pipe 18, the sewage supply pipe 18 to the sewage An advanced treatment tank 20 for removing nitrogen, phosphorus, and organic matters included therein is connected to the storage tank 8 while a return pipe 21 is installed at the upper portion of the advanced treatment tank 20 to return the excess sewage. Connected.

The interior of the advanced treatment tank 20 configured as described above is interconnected while being divided into a denitrification chamber 22 to remove nitrogen and a dephosphorization chamber 23 to remove phosphorus.

The denitrification chamber 22 is provided with an diffuser 24 near the bottom, and the diffuser 24 is connected to an air pump 26 for periodically supplying air while operating intermittently.

The dephosphorization chamber 23 is formed by compression molding of oyster shell as a main component, dein medicated media 28 made of a cube of a specific size (10-30 mm) and a shape (circular, square, oval, cylindrical, etc.), and cedar or oak chips. The wood chip 30 is made of a cube of a specific size (3-10mm) and the shape (circular, square, oval, cylindrical, etc.) and sequentially stacked, wherein the de-in media 28 and the wood chip 30 The stacking order of is not limited.

Subsequently, in the dephosphorization chamber 23 installed in the advanced treatment tank 20, a discharge pipe 32 for guiding the treated sewage to be discharged is installed at a predetermined height, and the discharge pipe 32 is included in the wastewater. An aerobic reaction tank 34 for removing organic matter by aerobic microorganisms is connected.

Inside the aerobic reaction tank 34 configured as described above, the diffuser 36 is installed in close proximity to the floor, the diffuser 36 is connected to an air pump 38 for periodically supplying air, the aerobic reactor (34) One side is provided with a box-shaped filtration device 40.

The filtration device 40 is made of wood chips made by chipping cedar or oak as described above, and inorganic media made by compressing and molding ceramics, mica, plastics, etc., and activated carbon.

Unlike the above, it is possible to install a mixture of wood chips, inorganic media and activated carbon as a whole.

At this time, when constituting the filtration device 40, wood chips: inorganic media: activated carbon is made by mixing in a constant ratio as the volume ratio, but is not particularly limited.

In addition, unlike the above, the filtration device 40 may be installed by selecting an immersion type membrane made of a flat membrane or a hollow fiber membrane as a commonly used method.

The exhalation reaction tank 34 is connected to the storage tank 8 while being provided with a conveying pipe 42 for automatically returning the sewage that is processed and overflowed at a predetermined height.

In addition, the filtration device 40 is provided with a transfer pipe 44 for guiding the flow of the treated sewage while combining the suction pump 46, and the transfer pipe 44 finally removes residual organic matter contained in the sewage. Is connected to the bioreactor 48, in which the end of the transfer pipe 44 is located above the reaction tower 50 is installed in the bioreactor 48.

In the reaction tower 50 (see FIG. 3) installed as described above, a plurality of columns 52 are installed vertically, and the heights of the frames 58 are arranged in the transverse direction between the columns 52. A layer layer is installed, and a box 54 containing a wood chip 66 or an inorganic material 68 is installed on the frame 58 of each layer.

At this time, a space portion is formed between the column 52 and the frame 58 so that air flow can be made smoothly.

In addition, the lower plate of each box 54 is provided with a perforated plate 64 provided to allow the wood chip 66 or the inorganic material 68 to be contained while allowing the supplied sewage to pass smoothly.

The box 54 installed as described above may be formed into a square (see FIG. 4A) or a circle (see FIG. 4B) according to the installation state of the frame 58, and the height of the column 52 (see FIG. 3). The number of boxes and boxes 54 can be changed in proportion to the amount of wastewater treated.

The height of the box 54 (see Fig. 3) is usually 40-60 cm in order to prevent the contents contained therein from being pressed and damaged by its own weight, the distance between the box 54 and the box 54 is Maintain a distance of 10-20 cm to facilitate natural ventilation.

Each box 54 configured as described above may contain the wood chip 66 and the inorganic material 68 individually contained or mixed.

The wood chip 66 is made by chipping oak or cedar, as described above, and the inorganic material 68 is made by compression molding by chipping ceramic, mica and plastic.

Subsequently, a discharge pipe 70 for discharging wastewater is installed in the bioreactor 48 (see FIG. 2), and the discharge pipe 70 is connected with a flow regulating tank 72 for adjusting the flow rate while storing the discharged treated water. do.

The flow rate adjusting tank 72 is connected to the storage tank 8 while the conveying pipe 74 for returning the processed water is installed at a predetermined height, and a transfer pump 76 is installed at the bottom of the flow rate adjusting tank 72. While connecting the transfer pipe 78, the transfer pipe 78 is connected to the decolorization tank 80 for decolorizing the treated water.

Decolorization tank 80 is configured as described above is composed of first and second cases (82, 84) filled with activated carbon therein, the upper end of the first case 82 is coupled to the end of the transfer pipe 78, A connection pipe 86 for guiding the flow of the treated water is coupled between the lower ends of the first and second cases 82 and 84, and the discharge pipe through which the treated water is discharged to the upper end of the second case 84. 88 are combined.

The discharge pipe 88 is connected to the treatment tank 90 for storing the treated water, and the second and third water level sensors 92 and 94 are installed on the inner wall of the treatment tank 90 at different heights, and the treatment tank Water supply pipe 96 is installed to the water supply pump 98, the water supply pipe 96 is connected to the water tank of the flush toilet (4).

The other side of the treatment tank (90) configured as described above is connected to the system stabilization tank 100 for storing the processed water is discharged to the pipe 102, and the excess sewage at a specific height above the system stabilization tank (100). An overflow pipe 104 for discharging is installed, and a supplemental water pipe 106 for supplying insufficient water to the treatment water tank 90 is installed while coupling the transfer pump 108 to the system stabilization tank 100.

The cutter pump 16 (refer FIG. 5), the air pump 26, 38, the transfer pump 76, 108, the suction pump 46, and the feed water pump 98 which comprise the sewage treatment system 2 as mentioned above. And, the first, second, third level sensors (5,92.94) is connected to the control unit 110 for transmitting an operation command based on the information transmitted.

On the other hand, the storage tank 8 (refer to FIG. 2), the advanced processing tank 20, the aerobic reaction tank 34, the biological reaction tank 48, the flow control tank 72, the decolorization tank 80 comprised as mentioned above, and the processing tank ( The arrangement sequence of 90) can be changed by deleting and replacing according to the environment of the installation place.

Referring to the operation of the present invention configured as described above are as follows.

First, when filthy water containing manure is moved from the flushing toilet 4 (see FIG. 2) to the storage chamber 12 of the storage tank 8 through the sewage discharge pipe 6, the small manure contained in the filthy water is screened ( It moves to the grinding chamber 14 while passing through 10).

Thereafter, the cutter pump 16 (see FIG. 2) is operated by a command transmitted from the control unit 110 (see FIG. 5), and the manure is crushed into small pieces of manure and treated with wastewater through the sewage supply pipe 18. The waste water is sent to the denitrification chamber 22 of the tank 20. At this time, if the waste water is sent to the advanced processing tank 20 side more than a predetermined level, the waste water returns to the storage tank 8 side through the conveying pipe 21. Done.

Therefore, the water treatment tank 20 maintains a constant water level.

The cutter pump 16 operating as described above stops the operation of the cutter pump 16 by checking the sensor not shown when the sewage level of the storage tank 8 reaches a predetermined level. The cutter pump 16 is operated to move the sewage to the advanced treatment tank 20.

Subsequently, in the advanced processing tank 20, the air pump 26 (see FIG. 2) intermittently operates by a command transmitted from the control unit 110 (see FIG. 5) and supplies air to the diffuser 24. At this time, if the air is supplied through the diffuser 24, the advanced processing tank 20 is aerobic, and if the air supply is stopped through the diffuser 24 of the advanced processing tank 20 The denitrification chamber 22 is in an oxygen free state.

If aerobic conditions as described above, the ammonium nitrogen (NH ₄ ⁺ -N) the nitrite contained in the waste water ^- is switched to (NO ₂ -N), nitrite nitrogen (NO ₂ ^- -N) again be Nitrification proceeds with conversion to acidic nitrogen (NO ₃ ^-- N).

When nitrification proceeds as described above, nitrifying bacteria nitrosomonas or nitrobacter are involved.

The nitrification process in the aerobic state is as follows.

                       (Nitrosomonas)

^{_{(1) NH 4 + + 3/2}} O 2 ---------- → NO 2 - + H 2 O + 2H +

                        (Nitrobacter)

^{_{(2) NO 2 - + 1/2}} O 2 - ---------- → NO 3 -

In addition, when the aerobic state as described above, the microorganism oxidizes the substrate stored in the cell to obtain energy for the biological reaction, and by using the re-absorbed phosphate phosphorus is stored in the form of polyphosphoric acid.

Unlike the above, when the supply of air through the diffuser 24 is stopped, the denitrification chamber inside the advanced treatment tank 20 becomes anoxic, and in this state, the denitrification microorganism proceeds with denitrification to release N ₂ . do.

The denitrification process is as follows.

_{^{NO 3 - → NO 2 - →}} NO → N 2 O → N 2

In addition, when the dephosphorization chamber 23 of the advanced treatment tank 20 is in the anaerobic state, the microorganism hydrolyzes the polyphosphoric acid in the cell and releases it into the phosphorous acid.

Phosphorus released as described above is a microorganism excessive intake of phosphorus in the aerobic process, these microorganisms are subsequently removed by the biological dephosphorization reaction, and at the same time the phosphorus contained in the sewage dephosphorization media (23) 28) may be adsorbed and removed.

In addition, in the wood chip 30 installed in the dephosphorization chamber 23, the aerobic microorganisms are parasitic on the surface, and the anaerobic microorganisms are parasitic on the inner surface. Denitrification proceeds to NO ₃ ⁻ , which releases N ₂ and removes organics.

Subsequently, the wastewater in which denitrification, dephosphorization, and organic matters are removed in the advanced treatment tank 20 is moved to the aerobic reaction tank 34 along the discharge pipe 32 through the dephosphorization chamber 23.

The sewage that reaches the aerobic reaction tank 34 is diffused by the air pump 38 (see FIG. 2) continuously by the command transmitted from the control unit 110 (see FIG. 5) as described above. Air is supplied through.

Therefore, the aerobic reaction tank 34 is continuously made aerobic state, the filter device 40 is composed of any one of wood chips, inorganic media, activated carbon, immersion membrane in the above state, or wood chips, inorganic media In the case where the filtration device 40 is composed of activated carbon, the reaction process will be described as an example.

First, the inside of the aerobic reaction tank 34 is aerobic and the sewage by the aerobic microorganism is promoted the nitrification process and the intake process of phosphorus is released, and the wood chip of the filtration device 40 performs a physical filtration and at the same time the wood chip. Organic substances are removed by aerobic microorganisms parasitic on the surface and anaerobic microorganisms parasitic inside the wood chip.

In addition, the inorganic medium is subjected to the same process as described above, the physical filtration, and at the same time to remove the organic matter.

In addition, the activated carbon performs the same process as described above, and acts as a bioactive carbon, thereby physically filtering and removing organic substances.

In addition, the immersion membrane physically filters the organic matter and manure contained in the sewage.

Subsequently, when the suction pump 46 installed in the transfer pipe 44 (see Fig. 2) is operated by a command transmitted from the control unit 110 (see Fig. 5), the sewage in the aerobic reaction tank 34 is filtered. After passing through the device 40 through a physical filtration process it is moved to the bioreactor 48 along the transfer pipe (44).

The sewage treated as above is sprinkled onto the upper part of the reaction tower 50 (see FIG. 3) installed in the bioreactor 48, and falls to the box 54, where the sewage is filled with wood chips ( 66) and the bottom of the bioreactor 48 (see FIG. 2), passing sequentially through the porous plate 64 mounted on the bottom, and the inorganic media 68 filled in the next box 54 and the porous plate 64 mounted on the bottom. Will exit.

At the same time, the outside air is introduced into the reaction tower 50 (see FIG. 3) through the space formed between the columns 52 (see FIG. 3) and the bottom of the bioreactor 48 (see FIG. 2). Inflow in the order of the porous plate 64 and the inorganic medium (68) of the), at the same time the air flows in the order of the porous plate 64 and the wood chip (66) of the other box 54 located in the upper reaction tower (50) It will exit to the upper side.

As described above, when the sewage passes through the wood chip 66, the nitrification process is promoted by the aerobic microorganisms parasitic on the surface of the wood chip 66, and the process of intake of phosphorus released is carried out. Substantially denitrification is carried out by anaerobic microorganisms parasitic inside the chip 66 to release N ₂ , and at the same time organic matter is removed by the microorganisms.

Subsequently, the sewage is passed through the inorganic filter material 68 filled in the other box 54 located below the reaction tower 50, wherein the sewage by the aerobic and anaerobic microorganisms parasitic in the inorganic material filter 68 The organics are removed again.

The sewage from which the organic matter is finally removed as described above is moved to the flow rate adjusting tank 72 through the discharge pipe 70 installed in the bioreactor 48 (see FIG. 2), and thereafter, when the treated water is over, the return pipe ( Part 74 is returned to the storage tank 8 through 74, and at the same time a part of the treated water is moved by the transfer pump 76 to the decolorization tank 80 along the transfer pipe 78.

Since the treated water is decolorized while the organic matter is removed by the activated carbon filled therein while moving from the upper portion to the lower portion of the first case 82, the treated water is installed at the lower end of the first case 82 The organic matter is removed again while moving upward from the lower end of the second case 84 through the connecting pipe 86, and at the same time, the treated water is discolored.

The treated water that has undergone the above process is made of treated water that has been purified to the level of the initially used wash water and stored in the treated water tank 90.

If the treated water is filled in the treated water tank 90 as described above, the overflowed sewage is moved to the system stabilization tank 100 through the discharge pipe 102, unlike the treatment process filled in the treated water tank 90 When the water is sent to the flush toilet 4 side and used a lot, the water level of the treatment tank 90 is lowered to approach the bottom, where the third water level sensor 94 is the control unit 110 (FIG. 5). Information).

At this time, the control unit 110 transmits an operation command to the transfer pump 108 to supply the treated water filled in the system stabilization tank 100 (see FIG. 2) to the treatment tank 90 through the supplemental water pipe 106. .

When the treated water supplied as described above reaches a predetermined level while being filled in the treated water tank 90, the second water level sensor 92 checks this and delivers it to the controller 110 (see FIG. 5). 110 transmits a stop command to the transfer pump 108 so that no more treated water is supplied.

Therefore, the treatment tank 90 (see FIG. 2) always maintains a constant water level.

As described above, the system stabilization tank 100 is treated water and rainwater is collected through the discharge pipe 102 in the process of being used, the water level is gradually increased, the overflow tube when the water level of the system stabilization tank 100 is over The water level of the system stabilization tank 100 is kept constant while exiting the system stabilization tank 100 through the 104.

On the other hand, in the case of the treated water filled in the treatment tank (90) is supplied to the water tank of the flush toilet (4) through the water supply pipe (96), at which time the water filled in the tank as the flush toilet (4) is used. When the water level is lowered to the water), the water is automatically supplied to the flushing toilet 4 by the feed water pump 98.

When the sewage containing the manure coming out of the flushing toilet (4) as described above is continuously introduced into the storage tank (8), the water level of the storage tank (8) reaches a dangerous water level, wherein the installed in the storage tank (8) The first water level sensor 5 transmits the information on the dangerous water level to the control unit 110 (see FIG. 5).

As described above, when the storage tank 8 becomes the dangerous water level, the advanced processing tank 20, the aerobic reaction tank 34, the flow rate adjusting tank 72, and the like also reach the dangerous water level.

Accordingly, the control unit 110 transmits an operation command to the transfer pump 76 (see FIG. 2) installed in the flow adjusting tank 72, so that the treated water passes through the decolorizing tank 80 from the flow adjusting tank 72. 90) side.

Subsequently, when the treated water moves to the system stabilization tank 100 through the treatment water tank 90, the water level of the storage tank 8 is lowered. At this time, the signal from the first water level sensor 5 controls the controller 110. If it does not reach, the control unit 110 determines that the storage tank 8 has returned to the normal water level, and transmits an operation stop command to the transfer pump 76.

As described above, a part of the treated water is evaporated during the aeration process in the process of operating the sewage treatment system 2, and the amount of water is reduced, while the amount of water increases due to the inflow of manure.

Therefore, if the amount of evaporation is greater than the increase, the total amount is insufficient.

In case the total quantity is insufficient as described above, the rainwater can be replenished by connecting the system stabilization tank 100 to the system stabilization tank 100 in a separate line.

Then, the treated water supplied to the water tank of the flush toilet 4 is discharged through the sewage discharge pipe 6 and moves to the same process as described above to reach the treated water tank 90, and then back to the flush toilet 4. The cyclic process of moving is repeated, which causes the sewage treatment system 2 of the present invention to be discharged.

In order for the treatment of sewage treated as described above to be advanced, it is necessary that the sewage residence time in the sewage treatment system 2 is sufficient. 42, 72) is satisfied to improve the overall treatment efficiency of sewage.

As described above, the present invention uses the storage tank 8, the advanced treatment tank 20, the aerobic reaction tank 34, the biological reaction tank 48, the flow rate adjusting tank 72, the decolorizing tank 80, the treated water tank 90 and the like. Since the sewage treatment system (2) is sequentially connected, organic matter, nitrogen, phosphorus and color and odor, which are the causes of eutrophication, are drastically removed, and the treated water reaches the level of the first used water. As will be the effect of greatly improving the purification capacity of the sewage treatment system (2).

Another effect is that the treated water used in the sewage treatment system 2 is environmentally friendly because it is reused while circulating inside without being discharged to the outside.

Another effect is that the size of the box 54 of the bioreactor 48 is standardized so that chips are not compacted and damaged by their own weight, and the outside air is naturally supplied into the box 54. Operation of the sewage treatment system 2 is greatly improved in terms of stability.

Claims (10)

A storage tank 8 for storing sewage containing manure discharged from the flush toilet 4; An advanced treatment tank 20 connected to the storage tank 8 to remove nitrogen, phosphorus, and organic matter contained in sewage; An aerobic reaction tank (34) connected to the advanced treatment tank (20) to remove organic matter contained in sewage; A bioreactor 48 connected to the aerobic reactor 34 to finally remove residual organic matter contained in the sewage; A flow regulating tank 72 connected to the bioreactor 48 for storing a predetermined amount of treated water and adjusting a flow rate; A decolorization tank 80 for decolorizing the treated water while being connected to the flow rate adjustment tank 72; A treatment tank 90 connected to the decolorization tank 80 to install a water supply pipe 96 to connect to the flush toilet 4 and store the treated water; Non-discharge circulation flush toilet sewage treatment system characterized in that the system stabilization tank (100) is connected to the treatment tank (90) to store a portion of the treated water and return to the treatment tank (90) or discharged again. The method of claim 1, Inside the advanced processing tank 20 An diffuser 24 connected with an intermittent actuating air pump 26, Dein media (28) made by compression molding oyster shell as a main component, Discharge-free toilet flushing sewage treatment system, characterized in that the wood chip (30) made by chipping cedar or oak is installed. The method of claim 2, Inside the advanced processing tank 20, the denitrification chamber 22 in which the diffuser 24 is located, Discharge media (28) and wood chip 30 is a non-discharge circulation flush toilet sewage treatment system characterized in that they are interconnected while being divided into a dephosphorization room (23) is installed by stacking. The method of claim 1, In the aerobic reaction tank 34, The diffuser 36 is connected to the continuously operating air pump 38, One side of the diffuser 36 is a wood chip made by chipping cedar or oak, Inorganic media made by compression molding of ceramics, mica and plastics, With activated carbon, Configured by any one of the immersion membrane to make and install the filtration device 40, Non-discharge circulation type flushing sewage treatment system, characterized in that the wood chip, the inorganic medium and the activated carbon to make the filter 40 in the state of mixing and installed. The method of claim 1, Inside the bioreactor 48 Wood chips 66 made by chipping cedar or oak, Non-discharge circulation flush toilet sewage treatment system characterized in that the inorganic media made by compression molding the ceramic, mica, plastic chip (68) is installed. The method of claim 5, In the bioreactor 48, a reaction tower 50 for receiving and draining sewage from the aerobic reaction tank 34 is configured while installing a box 54 therein, and the box 54 is a porous plate so that the sewage passes. Non-discharge circulation flush toilet sewage treatment system, characterized in that the wood chip (66) and the inorganic medium (68) is contained while installing the lower 64. The method of claim 6, The reaction tower 50, A plurality of columns 52 are installed vertically, Frame 58 is installed in the column 52 in the transverse direction, Discharge-free circulation flush toilet sewage treatment system, characterized in that the box (54) is installed above the frame (58). The method of claim 1, The bleaching tank 80 It consists of first and second cases (82,84) filled with activated carbon therein, The upper portion of the first case 82 is coupled to the flow rate adjustment tank 72 by combining the transfer pipe 78 into which the treated water flows. The lower end portion between the first and second cases 82 and 84 is connected to a connecting pipe 86 for guiding the flow of the treated water. The second case (84), the upper end portion of the discharge-free toilet flushing sewage treatment system, characterized in that coupled to the treatment water tank (90) by combining the discharge pipe 88 through which the treated water flows out. The method of claim 1, The discharge water tank 102 and the supplementary water pipe 106 are connected to the treatment tank 90 and the system stabilization tank 100, respectively. Second and third level sensors 92 and 94 having different heights are installed in the treatment tank 90, respectively. The control unit 110 is connected to the second and third water level sensors 92 and 94, The control unit 110 is installed in the system stabilization tank 100 while the transfer pump 108 is connected, The transfer pump 108 is a non-discharge circulation flush toilet sewage treatment system, characterized in that connected to the supplemental water pipe (106). The method of claim 1, Return pipes 42 and 74 are respectively installed in the exhalation reaction tank 34 and the flow rate adjustment tank 72, and the return pipes 42 and 74 are connected to the storage tank 8. Processing system.

Images