KR101270278B1 - An unmanned sewage disposal system of zero energy using constructed wetlands - Google Patents

Abstract

PURPOSE: A manless wetland sewage system with no energy is provided to install the sewage system in required places regardless of height difference for smooth sewage flow for picking up a wet land location. CONSTITUTION: A manless wetland sewage system with no energy comprises a waterspout (10); a feed pump part (13); an aerobic tank (20): an anaerobic tank (30); and a pond tub (40). The pond tub discharges sewage by inflowing sewage which is discharged from an anaerobic bath and increasing dissolved oxygen of sewage. Aquatic plant (21) is vegetated when gravel (P) and sand (S) are laminated inside the aerobic tank and anaerobic tank. A distribution device is installed in the aeration tank in order to flow the external air into the aerobic tank. The distribution system includes an exhaust tube and an air supply fan (25). The exhaust tube is built in the gravel and sand inside the aerobic tank so that an air inlet can be opened to the outside. An air supplying fan is installed in the air inlet of the exhaust tube side and flows the external air to inside the exhaust tube. A plurality of air supply holes, which supplies the external air to inside the aerobic tank, is formed on the exterior surface of the exhaust tube. [Reference numerals] (AA) "가" part; (BB) Detailed of the "가" part

Description

An Unmanned Sewage Disposal System of Zero energy using Constructed Wetlands

The present invention relates to an energy-free unmanned artificial wetland sewage treatment system, and more particularly, after storing the sewage to be treated in a sewage treatment system using an artificial wetland including an aerobic tank, an anaerobic tank and a pond tank in a separate water tank. By using a water supply pump, the stored sewage can be properly supplied to the artificial wetland according to the level of the artificial wetland. The present invention relates to an energy-free unmanned artificial wetland sewage treatment system that can effectively solve unstable sewage treatment efficiency problems caused by flooding.

Generally, in urban areas where a large amount of domestic sewage is generated, sewage treatment plants using mechanical sludge, etc. are installed, and the sewage is treated with water and then discharged to rivers or the sea.

However, in most rural and rural areas, sewage pipes are not properly installed or have a very low penetration rate. In addition, the above-mentioned mechanical methods do not require separate water treatment because they require specialized technical personnel and many installation and maintenance costs. There was a problem that the sewage is discharged into the river or the sea as it is.

Therefore, considering the special environment of the farming and fishing village as described above, the installation and maintenance cost is low, it can adapt well to the local environment, the treatment process is simple, and the sewage treatment method that can meet the target discharge water quality. Development is urgently needed.

To this end, recently, as part of a nature-friendly sewage treatment method, plants and biological sewage treatment systems using artificial wetlands have been developed. Details of the sewage treatment systems using artificial wetlands are described in the following [Document 1] and [Documents]. 2].

However, even in the sewage treatment system using the artificial wetlands disclosed in [Document 1] and [Document 2], the flow of sewage through artificial wetlands such as aerobic and anaerobic tanks is a natural flow type using the height difference of the artificial wetlands. In order to secure the smooth flow of sewage during the construction of artificial wetlands, artificial wetlands must be arranged in a position where the proper height difference is maintained. Therefore, when the sewage treatment system cannot be installed or installed in a necessary place, Even unnecessarily excessive area was required a problem.

In addition, the sewage treatment system using the artificial wetland according to the prior art, because the sewage flow rate flowing into the treatment tank (that is, aerobic tank and anaerobic tank) fluctuates greatly due to the characteristics of the farm and fishing villages due to unexpected flooding of the treatment tank, etc. There was a problem that it is difficult to secure a stable sewage treatment efficiency for the discharged water quality.

Furthermore, in the case of the sewage treatment system using the artificial wetland according to the prior art, since the wastewater through the anaerobic tank is generally configured to be finally discharged, due to the temporary lack of dissolved oxygen such as the stream at the time of discharge to the aquatic ecosystem such as fish or microorganisms. There is a problem that adversely affects, these problems are further aggravated when the green algae caused by summer eutrophication.

[Document 1] Korean Patent Publication No. 2004-0005099 (published Jan. 16, 2004)

[Document 2] Korean Patent Publication No. 2004-0005100 (published Jan. 16, 2004)

The present invention is to solve the above-mentioned problems of the prior art, the object of the present invention is to store the sewage generated in a separate collection tank instead of natural drainage and then to supply it to the artificial wetland by using a water supply pump sewage It is to provide an energy-free unmanned artificial wetland sewage treatment system that can solve the problems of the prior art requiring the location of artificial wetlands to ensure the smooth flow of.

In addition, another object of the present invention is to change the flow rate of the sewage supplied by the feed water pump according to the water level of the artificial wetland problem of the prior art that the sewage treatment efficiency for the target discharge water quality is unstable due to the unexpected flooding of the artificial wetland. To provide an energy-free unmanned artificial wetland sewage treatment system that can solve the problem.

In addition, another object of the present invention is to solve the problem of the prior art threatening the aquatic ecosystem due to the lack of dissolved oxygen in the final discharged sewage by configuring the artificial wetlands to increase the dissolved oxygen in the sewage via anaerobic tank. It is to provide a zero energy unmanned artificial wetland sewage treatment system.

In addition, another object of the present invention is to configure the use of fossil energy and the installation of facility management personnel by configuring the power supply for driving the sewage treatment system by a power generation device using renewable energy such as solar energy, wind power, or hydropower To provide a zero energy unmanned artificial wetland sewage treatment system that can be operated as a zero energy / unmanned system at all.

In order to achieve the object as described above, the zero energy unmanned artificial wetland sewage treatment system according to the present invention is a water collecting tank for storing sewage, a water supply pump for discharging the sewage stored in the water collecting tank, and the sewage discharged from the water supply pump. The aerobic tank to naturally purify in the aerobic state by introducing a, the anaerobic tank to infiltrate the sewage discharged from the aerobic tank to naturally purify in the anaerobic state, and the sewage discharged from the anaerobic tank was introduced to increase the dissolved oxygen of the sewage It includes a pond to discharge after, the pond is characterized in that the fountain is provided with a water fountain and a bubble generator for supplying oxygen to the sewage.

In addition, the aerobic tank and anaerobic tank is aquatic plants vegetation in a state in which the gravel and sand is stacked inside, respectively, the aerobic tank is further provided with an air supply unit for introducing external air into the aerobic tank, the air supply unit air A vent pipe embedded in the gravel and sand in the aerobic tank so as to open to the outside, and an air supply fan installed at an air inlet side of the vent pipe to flow outside air into the vent pipe, and the outer surface of the vent pipe includes: A plurality of air supply holes for supplying the outside air into the aerobic tank is formed.

In addition, a first drain pump for pumping the sewage discharged from the aerobic tank to enter the anaerobic tank, a second drain pump for pumping the sewage discharged from the anaerobic tank into the pond tank or sewage discharged from the pond It characterized in that it further comprises a drain pump having at least one of the third drain pump pumped to discharge to the outside.

In addition, at least one of the anaerobic tank and the pond tank is further provided with a water level sensor for detecting the water level of the introduced sewage, judging the output of the water level sensor unit at least one of the water level of the anaerobic tank and the pond tank is set in advance When the water level is higher than the control unit for stopping the water supply pump or reducing the flow rate of sewage discharged from the water supply pump.

The apparatus may further include a transceiver configured to communicate with an external management center located at a remote location, and the controller may be configured to transmit a fault code, which is information about a malfunctioning device, when at least one of the devices configuring the sewage treatment system fails. It transmits to the external management center and stops the operation of the remaining devices.

The apparatus may further include a power supply unit configured to generate electricity by using at least one of solar energy, wind power, or hydropower, and supply the electricity to a driving power of a device constituting the sewage treatment system.

As described above, since the zero energy unmanned artificial wetland sewage treatment system according to the present invention is configured to supply the sewage stored once in the sump tank to the artificial wetland instead of the conventional natural flow type, the location of the artificial wetland is selected. There is no need to consider the difference in height for the smooth flow of sewage, and this advantage has the advantage that the sewage treatment system can be installed in the required area.

In addition, the zero energy unmanned artificial wetland sewage treatment system according to the present invention is configured to control the flow rate of sewage discharged from the water supply pump according to the water level of the anaerobic tank and pond tank due to the excess capacity of the artificial wetland Unexpected flooding can be prevented in advance, and therefore, there is an advantage in that the sewage treatment efficiency for the target discharge water quality can be maintained stably.

In addition, the zero energy unmanned artificial wetland sewage treatment system according to the present invention is configured such that the sewage through the anaerobic tank passes through the pond tank equipped with the fountain device and the bubble generator, so that the amount of dissolved oxygen in the final discharged sewage is insufficient. Because it can prevent, the threat of aquatic ecosystem due to sewage discharge can be minimized.

In addition, the zero energy unmanned artificial wetland sewage treatment system according to the present invention has a merit that the external air can be smoothly supplied to the inside of the aerobic tank by using an air supply fan and a vent pipe, thereby greatly improving the treatment efficiency of sewage. have.

In addition, since the zero energy unmanned artificial wetland sewage treatment system according to the present invention is a method of supplying power required for driving the sewage treatment system using renewable energy such as solar energy, wind power, and hydropower, the use and management of fossil fuels There is an advantage that it is possible to maintain as an environment-friendly / low cost unmanned system because it is not necessary to deploy.

1 is a cross-sectional view for schematically explaining the overall configuration of the zero energy unmanned artificial wetland sewage treatment system according to an embodiment of the present invention;
2 is a plan view for explaining the internal configuration of the aerobic tank and anaerobic tank shown in FIG.
Figure 3 is a block diagram showing the operation configuration of the zero energy unmanned artificial wetland sewage treatment system according to an embodiment of the present invention, and
4 is a flowchart illustrating the operation of the zero energy unmanned artificial wetland sewage treatment system according to an embodiment of the present invention.

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

1 is a cross-sectional view for explaining the overall configuration of the zero energy unmanned artificial wetland sewage treatment system according to an embodiment of the present invention, Figure 2 is a plan view for explaining the internal configuration of the aerobic tank and anaerobic tank shown in FIG. to be.

In addition, Figure 3 is a block diagram showing the operation configuration of the zero energy unmanned artificial wetlands sewage treatment system according to an embodiment of the present invention, Figure 4 is an energy zero unmanned artificial wetlands sewage treatment system according to an embodiment of the present invention A flowchart for explaining the operation.

The zero energy unmanned artificial wetland sewage treatment system according to the present embodiment includes a water collecting tank 10 in which the generated sewage W is stored, and a water supply pump 13 pumping the sewage W stored in the water collecting tank 10 to the outside. Inflow of the sewage (W) discharged from the water supply pump 13, the natural aerobic tank 20 to purify in an aerobic state, inflow into the sewage (W) discharged from the aerobic tank 20 is natural in anaerobic state The anaerobic tank 30 to purify, and the pond (40) for increasing the dissolved oxygen of the sewage (W) by introducing the sewage (W) discharged from the anaerobic tank (30).

At this time, the sump tank 10, aerobic tank 20, anaerobic tank 30, and pond tank 40, respectively, to prevent the untreated sewage (W) to penetrate underground to contaminate soil and water quality It is preferable to provide (M).

In addition, the sump (10) is stored in the sewage (W) introduced through the sewage inlet pipe 11, the stored sewage is discharged to the outside by the water supply pump 13 through the sewage discharge pipe (12). .

In addition, the water supply pump 13 may be preferably configured by using a conventional pump, etc., may be configured as a pump that can adjust the pumping flow rate, if necessary.

In addition, in the description and the claims of the present invention, the "water pump 13" refers to controlling the operation of the pump and / or the pumping flow rate according to the control signal of the controller 100 to be described later as well as the pump. It is a concept including a pump driving unit, the pump driving unit is configured to feed back the operating state of the pump (for example, a failure state, etc.) to the control unit 100 as necessary.

In addition, such matters are used in the description and claims of the present invention, "transmitter and receiver", "first level sensor part", "second level sensor part", "fountain pump part", "air supply fan part", The same applies to the "bubble generating part", and descriptions overlapping in each case will be omitted.

On the other hand, the bottom of the aerobic tank 20 is filled with gravel (P) at a predetermined height and the top of the gravel (P) is filled with sand (S) at a predetermined height, the top of the sand (S) aquatic The plant 21 is planted.

In addition, the gravel (P) filling the bottom of the aerobic tank 20 is preferably used to select the particle size in the range of about 10 to 20mm, the height of the stacking of the gravel (P) is in the range of about 15 ~ 30cm It is preferable to set at.

In addition, the sand (S) filling on the gravel (P) of the aerobic tank 20 is preferably used to select the particle size in the range of about 2 to 5 mm, the stack height of the sand is in the range of about 60 to 100 cm It is preferable to set at.

In addition, the aquatic plant 21 vegetation on the sand (S) of the aerobic tank 20 is mainly applicable to the reed having a ventilation structure that can supply oxygen into the sand (S).

In addition, air supply units 22 and 25 are further installed inside the aerobic tank 20 to introduce external air into the aerobic tank 20. The air supply units 22 and 25 are air inlets. The air supply pipe part 25 installed at the air inlet side of the air pipe 22 and the air pipe 22 embedded in the gravel P and the sand S so that the air is opened to the outside. It is configured to include).

At this time, the vent pipe 22 is installed to be connected to the middle height portion of the aerobic tank 20 in a lattice shape as an example and introduced from the outside through the second vent pipe 22b and the connecting pipe 22c in a manner described below. The first vent pipe 22a for supplying air to the aerobic tank 20 and the bottom portion of the aerobic tank 20 (that is, the lower part of the first vent pipe) are arranged and arranged in a lattice shape, and the air inlet is externally installed. And a plurality of connecting pipes 22c for communicating the grid-shaped first tube 22a and the second tube 22b so as to be exposed to each other.

In this case, the air supply fan 25 is installed at the air inlet side of the second vent pipe 22b to force the outside air into the vent pipe 22 to allow air (specifically, oxygen) into the aerobic tank 20. Make it easier to supply.

In addition, in the present embodiment, as the air inlet of the second vent pipe 22b is exposed in the anaerobic tank 30, external air flows in through the upper part of the second vent pipe 22b and the second vent pipe ( 22b) through the lower portion of the aerobic tank 20 is configured to discharge the natural purified sewage (W) to the anaerobic tank 30, but is not limited to this, if necessary, the natural purified sewage (W) is It may be configured to be discharged to the anaerobic tank 30 through a pipe separately installed in the aerobic tank 20.

In addition, in the present embodiment, the second vent pipe 22b is illustrated as an example of one air inlet exposed to the outside, but may be configured to include a plurality of air inlets as necessary.

However, considering that the sewage treatment effect increases as the time for passing the sewage through the aerobic tank 20 increases, a problem may occur in the sewage treatment effect when the air inlet is excessively large, so that one of the sewage treatment tanks may be used. Or one or more suitable numbers.

In addition, although not shown in the drawing, it is preferable that a plurality of small air supply holes (not shown) are formed on the outer surface of the air supply pipe 22. The air (oxygen) inside the air supply pipe 22 is gravel (P) through the air supply hole. ) Is supplied into the sand (S), and the sewage (W) treated in the gravel (P) or sand (S) side is introduced into the vent pipe (22).

In this case, it is more preferable to provide a fine structure net in the vent pipe 22 to prevent the air supply from being blocked by sand or sludge.

In addition, it is preferable that the connecting pipe 22c is formed at a point where the first pipe 22a and the second pipe 22b overlap each other in a lattice shape, as shown in FIG. By arranging), the air in the first vent pipe 22a and the second vent pipe 22b can be evenly distributed so that air (specifically, oxygen) can be supplied evenly over the entire inside of the aerobic tank 20.

In addition, the sewage flowing into the first vent pipe 22a through the air supply hole is collected into the second vent pipe 22b through the connecting pipe 22c, so that the air inlet (specifically the lower part) of the second vent pipe 22b is collected. Through the anaerobic tank 30 is discharged.

As described above, the zero energy unmanned artificial wetland sewage treatment system according to the present invention is configured so that external air can be smoothly supplied into the aerobic tank 20 using the air supply fan 25 and the vent pipe 22. There is an advantage that can greatly improve the processing efficiency.

At this time, since the sewage flowing into the aerobic tank 20 of the present invention is supplied by the drive of the water supply pump 13, unlike the conventional natural flow type sewage system, the aerobic tank 20 dares to discharge the sewage ( Not shown) or because there is no need to be installed at a lower position than the sump (10) there is an advantage that the position selection for the installation of artificial wetlands is very free.

On the other hand, the bottom of the anaerobic tank 30 is filled with gravel (P) at a predetermined height and the top of the gravel (P) is filled with sand (S) at a predetermined height, the top of the sand (S) aquatic The plant 31 is planted.

In addition, the gravel (P) filling the bottom of the anaerobic tank 30 is preferably used to select the particle size in the range of about 10 to 20mm, the stack height of the gravel (P) is in the range of about 15 ~ 30cm It is preferable to set at.

In addition, the sand (S) filling on the gravel (P) of the anaerobic tank 30 is preferably used to select the particle size in the range of about 0.1 ~ 5mm, the stack height of the sand is in the range of about 100 ~ 150cm It is preferable to set at.

At this time, the sand (S) filled in the anaerobic tank 30 is more preferably used sea sand containing oyster shell, such as CaCO ₃ component contained in the oyster shell adsorbed phosphorus to extend the life of artificial wetlands. Because.

In addition, the aquatic plant (31) vegetation on the sand (S) of the anaerobic tank 30 is mainly applicable to the vegetation, underwater, buoy, etc. that can be vegetated in the water, the sand (S) is always filled with sewage It is preferably configured to maintain the anaerobic state by shutting off the oxygen supply.

In addition, a zigzag-shaped guide wall 32 may be further installed inside the anaerobic tank 30 to guide the flow of sewage, as shown in FIG. 2, which is high while the introduced sewage flows through the zigzag path. In order to be denitrified and dephosphorized in the anaerobic state.

In addition, the lower portion of the anaerobic tank 30 is formed with a discharge pipe 34 for discharging the natural purified sewage to the pond 40 to be described later, the first side for detecting the water level of the introduced sewage The water level sensor 37 is installed.

In addition, in this embodiment, the anaerobic tank 30 is configured to be positioned lower than the aerobic tank 20 so that the sewage via the aerobic tank 20 is supplied to the anaerobic tank 30 without any power. The present invention is not limited thereto, but if necessary, the sewage discharged through the second pipe 22b of the aerobic tank 20 using a separate drainage pump (not shown) as in the aerobic tank 20 described above. It is a matter of course that the installation position can be freely selected by configuring the supply of.

On the other hand, the pond 40 is not only to perform an environmental function to make the beauty of the sewage system beautiful, but also to increase the dissolved oxygen of the sewage via the anaerobic tank 30 to finally discharge to the river, etc. It comprises a bubble generator 41 for generating the bubble (B) and the fountain pump portion 43 for spraying the water through the fountain pipe 42.

In this case, the bubble generator 41 may generate the bubble B by using outside air, but may be configured to generate the bubble B by using oxygen supplied from the outside as necessary.

As described above, in the zero energy unmanned artificial wetland sewage treatment system according to the present invention, the sewage water passing through the anaerobic tank 30 has a fountain device (ie, a fountain pipe and a fountain pump part) and a bubble generator 41. It is advantageous to minimize the threat of aquatic ecosystems due to sewage discharge because it is possible to prevent the phenomenon that the dissolved oxygen amount of the final discharged sewage can be prevented by passing through (40).

In addition, gravel P may be stacked at a predetermined height at the bottom of the pond 40, and the sewage in which the dissolved oxygen amount is increased is finally discharged to a river through the discharge pipe 44.

In addition, in this embodiment, the discharge pipe 34 is configured in a substantially zigzag shape so that the sewage (W) discharged from the lower portion of the anaerobic tank 30 can be supplied to the upper portion of the pond 40 without a separate power, In this case, the outlet of the discharge pipe 34 (that is, the portion connected to the upper part of the pond) should be lower than the level of the anaerobic tank 30 so that the sewage discharge can be easily performed.

To this end, in the present embodiment, the outlet of the discharge pipe 34 is configured to have a fixed shape so that the height thereof is lower than the level of the anaerobic tank 30, but is not limited thereto, and the current level of the anaerobic tank 30 is not limited thereto. Accordingly, the height of the outlet of the discharge pipe 34 may be configured to be changed (ie, liftable).

In addition, as a modification of the present embodiment, the pond 40 is configured to be positioned lower than the aerobic tank 20 and the anaerobic tank 30 so as to sequentially pass through the aerobic tank 20 and the anaerobic tank 30. It may be configured to be supplied to the pond 40 without a separate power.

In addition, as another modified example of the present embodiment, if necessary, the discharge pipe 34 of the anaerobic tank 30 is separated using a separate drainage pump (not shown) similarly to the aerobic tank 20 and the anaerobic tank 30 described above. Of course, it may also be configured to supply the sewage discharged through.

In addition, a second water level sensor 47 may be installed at one upper side of the pond 40 to detect the water level of the sewage introduced.

On the other hand, the zero energy unmanned artificial wetland sewage treatment system according to the present invention for driving the water supply pump 13, the fountain pump 43, the air supply fan 25, the bubble generator 41, etc. as described above It requires a power source, the present invention may further include a power supply unit 50 using the renewable energy for this purpose.

The power supply unit 50 is a solar cell module 51 for generating power using solar light, the charging module 52 for charging the generated electricity, and the generated or charged electricity to each load of the sewage treatment system It is comprised including the power supply line 53 which supplies.

In this embodiment, the power generation is described using solar as an example, but is not limited thereto. If necessary, power generation is performed using at least one of renewable energy such as solar light, solar heat, wind power, or hydro power. In addition, in the case where the commercial power is supplied, the system loads may be configured to be driven using the commercial power.

According to the above configuration, the zero energy unmanned artificial wetland sewage treatment system according to the present invention is a method of supplying power required for driving the sewage treatment system using renewable energy such as solar energy, wind power, and hydropower. There is an advantage that it can be maintained as an environment-friendly / low cost unmanned system because it does not require the use and management personnel.

Further, an input unit for inputting driving conditions of the sewage treatment system to one side of the energy zero unmanned artificial wetland sewage treatment system (in this case, as an example, a power supply unit as an example), a controller for controlling the aforementioned various devices, and an external device The control panel (C) for accommodating therein and a communication unit for communicating therein may be further installed.

Next, the sewage treatment process of the zero energy unmanned artificial wetland sewage treatment system according to the present invention configured as described above will be described.

First, when the sewage stored in the water collecting tank 10 is introduced into the aerobic tank 20 by the operation of the water supply pump 13, the sewage is permeated into the sand (S) layer and flows downward, and the sand (S) Sludge contained in the sewage is filtered while sequentially passing through and the gravel (S) layer.

At this time, the filtered sludge begins to be decomposed by the microorganism propagating between the root of the aquatic plant 21 and sand (S), gravel (P), in this case the root of the aquatic plant (21) vegetated in the sand (S) Not only oxygen is supplied through, but also the outside air is forcedly supplied through the vent pipe 22 so that sufficient oxygen is always supplied to breed the microorganisms so that decomposition of the sludge may be actively performed.

The sludge filtered as described above is introduced into the vent pipe 22 through the air supply hole (not shown) as described above and is discharged to the anaerobic tank 30.

At this time, since the sewage passing through the sand (S) and gravel (P) proceeds slowly, the amount of sewage flowing into the vent pipe 22 is not large, and thus, the upper part of the second vent pipe 22b is always empty. Since it is maintained, the outside air introduced by the air supply fan 25 through this space can be easily supplied into the aerobic tank 20.

That is, in the case of the second vent pipe 22b, the sewage via the aerobic tank 20 is discharged to the anaerobic tank 30 (lower area of the second vent pipe) and the outside air is supplied by the air supply fan 25. Inflow (the upper region of the second pipe) is made to flow into the aerobic tank 20 through the air supply hole.

In this way, since the oxygen is sufficiently supplied evenly throughout the aerobic tank 20, microorganisms grow vigorously and decompose and treat almost all organic matter.

Some of the organic matter (sludge) not treated in the above-described process is primarily treated by sewage from the aerobic tank 20 by adsorption, filtration, sedimentation and absorption by the aquatic plant 21 by sand (S) and gravel (P). do.

At this time, dissolved oxygen (DO) is consumed by many organic substances and microorganisms in the sewage flowing into the aerobic tank 20 from the sump tank 10, but is almost never present when passing through the aerobic tank 20 as described above. It is oxidized by oxygen supply and the concentration of dissolved oxygen is rapidly increased. In case of NH ₄ -N, most of it is converted to NO ₃ -N by nitrification process of microorganism.

The sewage passing through the aerobic tank 20 is removed most of the contaminants, but in the case of nitrogen and phosphorus only a small portion is treated by microorganisms, aquatic plants 21, sand (S) and gravel (P).

When the sewage that has passed through the aerobic tank 20 as described above flows into the anaerobic tank 30 through the air inlet of the second tube 22b, the anaerobic tank 30 in the anaerobic tank 30 by the guide wall 32 Guided by this zigzag, the residence time is as long as possible.

At this time, inside the anaerobic tank 30, the nitrified primary treated water is sufficiently reduced in dissolved oxygen (DO) under anaerobic conditions, and denitrification / dephosphorization by microorganisms, adsorption by sand (S) and gravel (S), Filtration, sedimentation, and partial absorption of organic matter by the aquatic plant 31 are performed and the secondary treatment is performed to remove contaminants such as residual organic matter and inorganic matter.

In this way, the sewage through the anaerobic tank 30 is introduced into the pond 40 in a state where the dissolved oxygen amount is very low, and as described above in the process of passing through the pond 40, the fountain device (that is, The fountain pipe and the fountain pump unit) and the bubble generator 41 is converted into a state in which the dissolved oxygen amount is greatly increased and finally discharged to a river or the like.

Next, the operation configuration of the zero energy unmanned artificial wetland sewage treatment system according to the present invention will be described in detail with reference to FIG.

First, the input unit 110 is for a user or the like to input setting values of various devices related to the operation of the sewage treatment system (for example, an output of a pump unit, an RPM of an air supply fan unit, a threshold level of a water level sensor unit, etc.), and a keypad or the like. It may be preferably configured using a conventional input device such as a touch panel, and if necessary, a display device for displaying the input items or the operating state of the sewage treatment system to the outside may be further provided.

In addition, the transceiver 120 is to transmit various data to an external management center located in a remote place or to receive data transmitted by an external management center, preferably by using any one of a known wireless communication method or a wired communication method. Can be implemented.

In this case, the external management center located at the remote site may be a monitoring system or a computer server installed in the competent authority for maintaining / managing the sewage treatment system, and if necessary, the manager maintains / manages the sewage treatment system while moving. It may also be configured as a portable terminal capable of performing a task.

 In addition, the control unit 100 according to the set value input through the input unit 110, the first and second water level sensor unit 37, 47, feed water pump unit 13, fountain pump unit 43, air supply fan unit (24) and the operation variable of the bubble generator 41, and controls the operation of the devices in accordance with the output of the first and second water level sensors (37, 47).

In addition, the control unit 100 checks the operation state of the devices during the operation of the sewage treatment system, and if there is a malfunctioning device among them by transmitting a fault code associated with this to the external management center through the transmission and reception unit 120 Ensure rapid maintenance.

In this case, the failure code refers to information data that can be transmitted by wired / wireless communication so that the administrator can check various information about the failed device at a remote location such as the type of the device that failed, the failure state (cause), and the time of failure. it means.

In addition, the control unit 100 transmits and receives information for the administrator to set or change the setting values for each device of the sewage treatment system at a remote place through a transceiver (not shown) of an external control center instead of the input unit 110. When transmitting to the unit 120, it is also possible to perform the function of setting or changing the operating parameters of the corresponding devices according to the received information.

By the above configuration, even if the zero energy unmanned artificial wetland sewage treatment system according to the present invention is operated as a completely unmanned system, the manager can effectively respond to weather conditions, seasonal conditions, or various environmental variables generated in the region. Operation variables of various devices constituting the sewage treatment system can be set or changed, so there is an advantage that stable sewage treatment efficiency can always be maintained even in exceptional circumstances.

Finally, the operation control of the zero energy artificial wetland sewage treatment system according to the present invention configured as described above with reference to Figure 4 will be described in detail.

When the setting values for the various devices constituting the sewage treatment system are input through the input unit 110 or the transmitting and receiving unit 120, the control unit 100 sets the operation variables of the corresponding devices according to the input setting values. (S10), the entire sewage treatment system is driven (S20).

When the step S20 is completed, the control unit 100 uses the first water level sensor 37 and the second water level sensor 47 to level L1 and the pond 40 of the anaerobic tank 30. The water level of each is detected (S30).

In addition, the control unit 100 determines whether at least one of L1 and L2 is equal to or higher than each set water level as a result of the detection in step S30 (S40), and if the water level is lower than or equal to the set water level, the water supply pump unit 13 is driven. Maintaining so that the sewage of the sump tank 10 can continue to be supplied to the aerobic tank 20 (S50).

On the other hand, if at least one of the L1 and L2 of the determination result of step S40 is above the set water level or more, the control unit 100 stops the driving of the water supply pump 13 so that the sewage of the sump tank 10 is aerobic tank 20 So that it is no longer supplied to (S45).

At this time, the set water level means the maximum water level for preventing the unexpected flooding of the anaerobic tank 30 and the pond 40, respectively, by the configuration of the step S45 zero energy artificial unmanned artificial The wetland sewage treatment system stops the sewage supply from the sump tank 10 when at least one of the anaerobic tank 30 and the pond tank 40 is above the maximum water level, so that the sewage treatment efficiency becomes unstable due to the overflow of artificial wetlands. There is an advantage to avoid.

In addition, the present embodiment describes a case in which the water level sensor unit is installed in both the anaerobic tank 30 and the pond 40 as an example, but is not limited thereto, and may be installed in any one as necessary.

In this embodiment, the case where the water supply pump unit 13 is stopped in step S45 is described as an example, but is not limited thereto. If necessary, the flow rate of sewage discharged from the water supply pump unit 13 according to the current water level is required. It can also be configured to reduce.

In this case, the method for reducing the flow rate of the sewage is configured by the control unit 100 to control the output of the water supply pump 13 or an on-off valve separately installed in the middle of the sewage discharge pipe 12 (for example, Solenoid valves, etc.) (not shown).

On the other hand, when the step S45 or S50 is completed, the control unit 100 determines whether there is a faulty device among the devices constituting the sewage treatment system (S60), and if there is a faulty device, the transceiver unit 120 The fault code associated with this is transmitted to the external control center, the operation of the entire sewage treatment system is stopped, and the control ends (S70, S80).

On the other hand, if there is no faulty device as a result of the determination in step S60, the controller 100 determines whether a signal for stopping the operation of the sewage treatment system is input through the input unit 110 or the transceiver 120. (S65) If no input is performed, step S30 or below is performed, and if inputted, step S80 is performed.

10: sump tank 13: feed water pump
20: aerobic formation 22: air supply unit
25: supply fan section 30: anaerobic maturation
37: first water level sensor 40: pond
41: bubble generator 43: fountain pump unit
47: second level sensor 50: power supply

Claims (6)

A sump where sewage is stored;
A water supply pump unit pumping and discharging sewage stored in the sump;
An aerobic tank for introducing the sewage discharged from the feed water pump unit to naturally purify in an aerobic state;
Anaerobic tank for natural purification in the anaerobic state by introducing the sewage discharged from the aerobic tank; And
Including the pond to inject the sewage discharged from the anaerobic tank to increase the dissolved oxygen of the sewage and then discharged,
In the aerobic tank and anaerobic tank, aquatic plants are planted in a state in which gravel and sand are stacked inside, and the aerobic tank is further provided with an air supply unit for introducing external air into the aerobic tank.
The air supply unit is configured to include an air inlet pipe embedded in the gravel and sand in the aerobic tank so that the air inlet is opened to the outside and an air supply fan for installing the air inlet side of the vent pipe to flow the outside air into the inside of the vent pipe, Zero-energy artificial wetland sewage treatment system, characterized in that a plurality of air supply holes for supplying the outside air into the aerobic tank is formed on the outer surface of the vent pipe. The method of claim 1,
The pond is an energy-free unmanned artificial wetland sewage treatment system, characterized in that provided with a water fountain and bubble generation unit for supplying oxygen to the sewage. The method of claim 1,
By pumping the sewage discharged from the aerobic tank to the first anastomosis pump, the sewage discharged from the anaerobic tank pumping the sewage discharged into the pond or the sewage discharged from the pond by pumping Energy zero unmanned artificial wetland sewage treatment system further comprising a drain pump having at least one of the third drain pump for discharging to the outside. The method of claim 1,
At least one of the anaerobic tank and pond tank is further provided with a water level sensor for detecting the water level of the introduced sewage,
The controller may further include a controller configured to determine the output of the water level sensor and to stop the water supply pump or reduce the flow rate of sewage discharged from the water supply pump when at least one of the anaerobic tank and the pond is at a predetermined level or more. Energy zero unmanned artificial wetland sewage treatment system, characterized in that. The method according to any one of claims 1 to 4,
Further comprising a transceiver for communicating with an external management center located in a remote place,
When at least one of the devices constituting the sewage treatment system has a failure, the controller transmits a failure code, which is information about a failed device, to the external management center through the transceiver and stops the operation of the remaining devices. Energy zero unmanned artificial wetland sewage treatment system. The method according to any one of claims 1 to 4,
Energy zero unmanned artificial wetland sewage treatment further comprising a power supply for generating electricity using at least one of solar energy, wind power or hydropower, and supplying it to a driving power of a device constituting the sewage treatment system. system.

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