KR102043235B1 - Septic tank system - Google Patents

Abstract

The present invention provides a septic tank system. The inner space is sealed, the aeration tank equipped with an aeration device in the inner space, and installed separately from the aeration tank, the sedimentation tank into which the sewage treated in the aeration tank flows and disposed between the aeration tank and the sedimentation tank, the stored absorption fluid A absorption tank for absorbing the first gas or foreign substances generated in the aeration tank and discharged to the settling tank.

Description

Septic tank system

The present invention relates to an apparatus and, more particularly, to a septic tank system for treating sewage.

A septic tank is a facility that cleans and processes only manure, a liquid and solid pollutant generated in a flush toilet. The main mechanism of wastewater treatment in these septic tanks is the 'methane fermentation method' of organic substances by microorganisms, and the digestive methods include aerobic digestion and anaerobic digestion.

In addition, the composition of household septic tank is largely composed of a decay tank, an oxidation tank, a disinfection tank. In the decay tank, organic matter decay and fermentation proceed, and in the oxidization tank, the oxidation of aerobic bacteria occurs due to the inflow of air while staying 16 to 24 hours. In case of sterilization tank, sterilize sewage with various disinfectant while staying 15 minutes.

The types of septic tanks are largely divided into independent septic tanks and merged septic tanks. The sole septic tanks can be classified into a decay tank, a cipher tank, a sprinkling decay tank, a sprinkling water, aeration method, and contact aeration. In addition to these treatment methods, the septic tank can be selected by determining the capacity of the facility according to the number of users.

Civil complaints and disputes are increasing due to the odor generated during the sewage treatment and storage process. Since living odor is a problem directly related to quality of life, in order to solve this problem, install an air supply device or inject a chemical. However, these methods also have limitations in completely removing odors.

In addition, pests may be generated during the purification or storage of sewage. To solve this problem, there are ways to add ginkgo biloba or loach, install insect screens, or add chemical pesticides. Insects such as mosquitoes and flies are difficult to extinguish because of their high fertility and fit with the environment of the septic tank, and the use of reckless insecticides causes new environmental problems.

The present invention provides a septic tank system capable of removing odors or pests in an environmentally friendly manner without odors or pests generated during the purification process. However, these problems are exemplary, and the scope of the present invention is not limited thereby.

According to an aspect of the present invention, the inner space is sealed, the aeration tank equipped with an aeration device in the inner space, and installed separately from the aeration tank, the sedimentation tank into which the sewage treated in the aeration tank and the aeration tank and the sedimentation tank It is disposed in, and the storage fluid provides a septic tank system comprising an absorption tank for absorbing the first gas or foreign substances generated in the aeration tank and discharged to the settling tank.

In addition, the aeration tank may have a discharge pipe having one end extending from one side wall and the other end of the aeration tank submerged in the absorption fluid of the absorption tank.

In addition, when the pressure of the first gas stored in the upper portion of the aeration tank rises, the first gas or the foreign matter may be moved along the discharge pipe and collected in the absorbing fluid.

The sewage tank may further include a connection pipe connecting the aeration tank and the sedimentation tank so that the sewage water moves from the aeration tank to the sedimentation tank and installed lower than the absorption tank.

In addition, the absorption tank is an inlet pipe for introducing the absorption fluid into the inner space, a discharge pipe installed in the upper portion of the absorption fluid, the discharge pipe for discharging the second gas separated from the absorption fluid to the outside and the settling tank It may be provided with a discharge tube for discharging.

In addition, the absorption tank may include at least one baffle unit installed in the interior space of the absorption tank so as to be immersed in the absorption fluid.

In addition, the baffle units may be spaced apart from each other in the height direction, and at least some of them may be disposed to overlap each other.

In addition, the baffle unit may be installed to be inclined with respect to the bottom surface of the absorption tank.

In addition, the absorption fluid stored in the absorption tank may be acidic.

In addition, the absorption fluid stored in the absorption tank may be dissolved in at least one of hydrochloric acid (HCl), sulfuric acid (H2SO4), sodium hypochlorite (NaClO), chlorine dioxide (ClO2) and potassium permanganate (KMnO4) in water (H2O). have.

The aeration tank may further include a pressure sensor that measures the pressure of the first gas and a branch pipe that opens when the pressure of the first gas is equal to or greater than a preset pressure and discharges the first gas to the outside.

According to one embodiment of the present invention made as described above, the septic tank system can improve the sanitary environment by preventing the odor or foreign substances generated during the purification process to be discharged to the outside.

Septic systems can separate and treat sewage and odors from each other to improve the efficiency and cleanliness of the purification process. In particular, it is possible to improve the efficiency and cleanliness of the purification process by removing the odor by the neutralization reaction in the absorption tank.

The septic tank system can easily remove the odor because the odor stays in the absorption tank for a considerable time by the baffle unit. Of course, the scope of the present invention is not limited by these effects.

1 is a plan view conceptually showing a septic tank system according to an embodiment of the present invention.
FIG. 2 is a side view illustrating some components of FIG. 1. FIG.
3 is a side view illustrating the side surface of the absorption tank of FIG. 2.
4 is a side view illustrating a modification of the absorption tank of FIG. 2.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various forms, and the following embodiments are intended to complete the disclosure of the present invention, the scope of the invention to those skilled in the art It is provided to inform you completely. In addition, the components may be exaggerated or reduced in size in the drawings for convenience of description. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, and thus the present invention is not necessarily limited to the illustrated.

On the other hand, when various components, such as layers, films, regions, and plates, are "on" other components, this is not only when other components are "right on" but also when other components are interposed therebetween. Include.

1 is a plan view conceptually showing a septic tank system 100 according to an embodiment of the present invention.

Referring to FIG. 1, the septic tank system 100 may include a decay tank 10, a flow rate adjusting tank 20, an aeration tank 110, a precipitation tank 120, and a treatment tank 50.

The decay tank 10 is a place for sedimentation of suspended matter in sewage. The flow rate in the decayed tank 10 should be slow and the sewage should stay the longest. The decay tank 10 is formed relatively large in order to slow down the flow rate of sewage and lengthen the commutation time.

The flow rate adjusting tank 20 is installed between the decaying tank 10 and the aeration tank 30. The flow rate adjustment tank 20 can control the flow rate of the sewage to move to the aeration tank 30. Since the flow rate adjustment tank 20 can adjust the flow rate of the sewage, the sewage is suddenly introduced into the aeration tank 30 can be stably treated sewage.

The aeration tank 30 may pass the sewage into the filter medium (not shown) to purify the sewage. An aeration device is installed in the aeration tank 30, and oxygen generated in the aeration device may react with the sewage to purify the sewage. Typically, sewage is rectified in the aeration tank 30 for about 16 hours to 24 hours, so pests such as mosquitoes may be generated.

The settling tank 40 is connected to the aeration tank 30, can remove the foreign matter in the sewage. The treatment tank 50 is connected to the settling tank 40, it is possible to disinfect the sewage flowed into the settling tank 40 using an oxidant.

FIG. 2 is a side view illustrating some components of FIG. 1, and FIG. 3 is a side view illustrating a side surface of the absorption tank 130 of FIG. 2.

The aeration tank 110, the precipitation tank 120, and the absorption tank 130 may be described in detail with reference to FIGS. 2 and 3 as follows.

The aeration tank 110 may include an aeration device 111, a discharge pipe 112, a pressure sensor 113, a branch pipe 114, and a first valve 115. The aeration tank 110 is provided with an aeration device 111 in the inner space, it can provide air to the sewage (W) to be stored. The aeration tank 110 may be installed to seal the internal space. The aeration tank 110 may be installed so that the front surface is blocked by the outer wall. Therefore, foreign substances such as odors or pests generated in the aeration tank 110 are not directly leaked to the outside.

The aeration tank 110 may be provided with a discharge pipe 112 for transmitting the first gas, such as odor generated during aeration to the absorption tank 130. One end of the discharge pipe 112 extends from one side wall of the aeration tank 110 and the other end is installed to be immersed in the absorption fluid M stored in the internal space of the absorption tank 130. A bubble generating device 112a is installed at an end of the discharge pipe 112 so that the first gas G1 may be effectively discharged from the discharge pipe 112.

The pressure sensor 113 may measure the pressure of the first gas G1 stored in the inner space of the aeration tank 110. Under the aeration tank 110, the sewage (W) is aerated by the aeration device 111, the first gas (G1) such as odor generated at this time passes through the sewage (W) to the upper side of the aeration tank (110). Stored. The pressure sensor 113 may determine whether the first valve 115 is opened by sensing the internal pressure of the aeration tank 110.

The branch pipe 114 is branched from one side of the aeration tank 110, and when the internal pressure of the aeration tank 110 is high, the first gas G1 may be discharged to the outside to lower the internal pressure. The branch pipe 114 may open the first valve 115 and discharge the first gas G1 to the outside when the pressure of the first gas G1 is greater than or equal to a preset pressure.

The connection pipe 116 is installed to connect the aeration tank 110 and the settling tank 120. Sewage (W) through the connection pipe 116 may move from the aeration tank 110 to the settling tank (120). The connection pipe 116 is installed at a lower position than the absorption tank 130 and may directly connect the aeration tank 110 and the settling tank 120.

Conventionally, the upper part of the aeration tank is installed to open. In order to eliminate the positive pressure generated by the aeration apparatus and to eliminate the possibility of explosion of the aeration tank, the aeration tank is installed with the top open. However, the stored odor of sewage is leaked to the outside, and the sanitary environment is deteriorated by the pest generated in the aeration tank.

Aeration tank 110 is because the inner space is sealed, odor, foreign matter, pests may not leak to the outside. When the aeration device 111 is driven, the first gas G1 such as odor is separated from the sewage W and stored in the upper portion of the aeration tank 110. That is, since a positive pressure is generated in the aeration tank 110, the first gas G1 may move to the absorption tank 130 having a low pressure along the discharge pipe 112. Since the aeration tank 110 is clogged in the front, the generated first gas G1 is not directly discharged to the outside but is discharged only through the discharge pipe 112.

In the aeration tank 110, since the sewage W stays for a considerable time, pests such as mosquitoes may occur, or foreign substances separated from the sewage during the aeration process may move along the first gas G1. Since the aeration tank 110 is clogged in the front, pests or foreign substances are not directly discharged to the outside, and are only discharged through the discharge pipe 112 according to the movement of the first gas G1.

The sedimentation tank 120 is installed separately from the aeration tank 110, the sewage (W) treated in the aeration tank 110 is introduced. Sewage (W) may be introduced into the settling tank 120 through the connection pipe 116. In addition, the precipitation tank 120 may be the absorption fluid (M) stored in the absorption tank 130 is introduced. Sewage (W) is introduced directly from the aeration tank 110, the first gas (G1) is dissolved in the absorption fluid (M) may be introduced from the absorption tank (130).

Absorption tank 130 is disposed between the aeration tank 110 and the settling tank 120, the absorption fluid (M) may be stored or flow therein. Absorption fluid (M) may absorb foreign substances such as the first gas (G1) or pests generated in the aeration tank 110, may move to the settling tank 120 to discharge the first gas (G1) or pests. have.

The absorbing fluid M is a fluid capable of absorbing foreign substances such as the first gas G1 or pests, and is not limited to a specific substance. For example, it may be fluid, groundwater or tap water stored in an external storage tank.

In addition, the absorption fluid (M) may be an acidic fluid. The first gas G1 generated in the aeration tank 110 may be a basic ammonia gas. The absorption fluid M may be neutrally reacted with the first gas G1 to safely remove the first gas G1. For example, the absorption fluid (M) is a fluid in which at least one of hydrochloric acid (HCl), sulfuric acid (H2SO4), sodium hypochlorite (NaClO), chlorine dioxide (ClO2), and potassium permanganate (KMnO4) is dissolved in water (H2O). Can be.

division Measurement 1 Measurement 2 Absorber pH 2.28 3.76 Aeration Tank Ammonia Concentration 65 ppm 70 ppm Absorber Ammonia Concentration 10 ppm 15 ppm Temperature 21.7 ℃ 20.2 ℃

The absorbing fluid is an acid solution in which sulfuric acid is dissolved, and the first gas is ammonia gas. Referring to Table 1, when the pH of the absorber was 2.28, about 85% of the ammonia gas was removed. In addition, when the pH of the absorption tank was 3.76, about 80% of the ammonia gas was removed.

That is, the absorption fluid (M) generates a neutralization reaction with the first gas, thereby effectively removing the first gas. In addition, since the absorption fluid (M) discharged to the settling tank 120 is neutral, the first gas (G1) can be removed in an environmentally friendly manner.

The absorption tank 130 may include an inlet pipe 131, a second valve 132, an outlet pipe 133, a discharge pipe 134, a third valve 135, and a baffle unit 136.

The inlet pipe 131 may introduce the absorption fluid (M) into the interior space of the absorption tank 130. A second valve 132 is installed in the inlet pipe 131 to control the flow rate of the absorption fluid (M). Absorption fluid (M) is stored in the absorption tank 130 for a period of time, and then discharged to the settling tank (120). When the absorbing fluid M is discharged, the second valve 132 may be charged again.

The outlet pipe 133 may extend from the upper wall of the absorption tank 130 and discharge the second gas G2 stored in the absorption tank 130 to the outside. When the second gas G2 such as malodor is disadvantageous in the absorption fluid M, it is collected at the upper portion of the absorption tank 130. The outlet pipe 133 may discharge the second gas G2 stored in the upper portion of the absorption tank 130 to maintain the stability of the absorption tank 130.

The discharge pipe 134 may extend from the lower wall of the absorption tank 130, and discharge the absorption fluid M to the settling tank 120. One side of the discharge tube 134 is provided with a third valve 135, it is possible to adjust the flow rate of the absorption fluid (M) discharged. Absorption fluid (M) stored in the absorption tank 130 for a predetermined period of time is discharged to the settling tank 120 through the discharge pipe 134 when the third valve 135 is opened.

Referring to FIG. 3, the baffle unit 136 may be disposed in plural in the inner space of the settling tank 120. The baffle unit 136 may interfere with the movement of the first gas G1 introduced through the discharge pipe 112 to allow the first gas G1 to be absorbed by the absorption fluid M.

The baffle unit 136 is installed inside the absorption tank 130 to be immersed in the absorption fluid (M). The baffle unit 136 may be spaced apart from each other in the height direction, and may hinder the fluidity of the first gas G1 moving upward.

The baffle unit 136 may be fixed to the side wall of the absorber 130. The baffle unit 136 may be installed so that some regions overlap. The first baffle 136a and the second baffle 136b may be installed to overlap each other by a distance d. The first gas G1 is not directly discharged to the outside by the overlapped region, and may stay in the absorption tank 130 for a considerable time.

division Measurement 1 Measurement 2 Measurement 3 Average Dwell time without Baffle 0.29 seconds 0.25 sec 0.26 seconds 0.267 seconds Time spent in Baffle 0.97 sec 0.98 sec 0.94 sec 0.963 seconds

Referring to Table 1 above, in the absorption tank without baffles, the average time for which the first gas, which is ammonia, dwells in the form of air bubbles, is 0.267 seconds on average, but when the baffles are formed, the residence time of the first gas is increased to 0.963 seconds. When the residence time of the first gas in the absorption tank is increased, the contact time and area with the absorption fluid may be increased to effectively remove the first gas.

Purification tank system 100 according to an embodiment of the present invention can prevent the odor or foreign substances generated during the purification process to be discharged to the outside, thereby improving the sanitary environment. The aeration tank 110 is blocked in the front, the gas generated through the discharge pipe is discharged, it is not directly discharged to the outside.

The septic tank system 100 may improve the efficiency and cleanliness of the purification process by separating and treating sewage and odors from each other. Sewage (W) purified in the aeration tank 110 is moved directly to the settling tank 120, the odor or foreign substances generated during the purification process is moved to the settling tank 120 through the absorption tank 130. In particular, the absorption tank 130 can remove the odor by the neutralization reaction. Odor or foreign matter is moved to the settling tank 120 after being stored in the absorption fluid (M), it is possible to improve the efficiency and cleanliness of the purification process.

The septic tank system 100 can easily remove the odor because the odor stays in the absorption tank 130 for a considerable time. The baffle unit 136 prevents the movement of the gas, so that the gas can be dissolved in the absorbing fluid M effectively.

4 is a side view illustrating a modification of the absorber 130 ′ of FIG. 2.

Referring to FIG. 4, the absorption tank 130 ′ of the modified example is characterized by the shape and arrangement of the baffle unit 136 ′, and will be described in detail.

The baffle unit 136 'may be installed to be inclined with respect to the bottom surface of the absorption tank 130'. Since the baffle unit 136 ′ is formed to be inclined downward, the first gas G1 may stay in the absorption tank 130 ′ for a long time.

Since the first baffle 136 ′ a and the second baffle 136 ′ b are formed to be inclined downward, the first gas G1 discharged from the discharge pipe 112 may form the bottom surface of the first baffle 136 ′ a. Move along. Thereafter, since the first baffles 136 ′ a and the sidewalls are gathered in contact with each other, the remaining time of the first gas G1 may be increased.

When the first gas G1 rises through the first baffle 136'a, the first gas G1 moves along the bottom surface of the second baffle 136'b. Thereafter, since the second baffles 136'b and the sidewalls are gathered in contact with each other, the remaining time of the first gas G1 may be increased.

In addition, since the first baffle 136 ′ a and the second baffle 136 ′ b disposed to be inclined have regions overlapping each other, the first gas G1 may remain in the absorption tank 130 ′ for a long time. have.

The absorption tank 130 ′ may guide the movement of the baffle unit 136 ′ to the first gas G1 so that the first gas G1 remains in the internal space of the absorption tank 130 ′ for a long time. Since the first gas G1 may be easily dissolved in the absorption fluid M, the first gas G1 may be effectively removed.

If the steps constituting the method according to the invention are not explicitly stated or contrary to the steps, the steps may be performed in a suitable order. The present invention is not necessarily limited to the order of description of the above steps. The use of all examples or exemplary terms (eg, etc.) in the present invention is merely for describing the present invention in detail, and the scope of the present invention is limited by the examples or exemplary terms unless the scope of the claims is defined. It is not limited. Also, one of ordinary skill in the art appreciates that various modifications, combinations and changes can be made in accordance with design conditions and factors within the scope of the appended claims or equivalents thereof.

Therefore, the spirit of the present invention should not be limited to the above-described embodiments, and all the scope equivalent to or equivalent to the scope of the claims, as well as the claims to be described later, are defined by the spirit of the invention. It belongs to the category.

100: septic tank system
110: aeration tank
112: discharge pipe
120: sedimentation tank
130: absorber
136: baffle unit

Claims (11)

An aeration tank in which an inner space is sealed and an aeration device is mounted in the inner space;
A sedimentation tank installed separately from the aeration tank and into which sewage treated in the aeration tank is introduced; And
And an absorption tank disposed between the aeration tank and the settling tank, wherein the stored absorption fluid absorbs the first gas or foreign matter generated in the aeration tank and discharges the first gas or foreign matter to the settling tank.
The aeration tank is
And a discharge pipe having one end extending from one side wall and the other end installed to be immersed in the absorption fluid of the absorption tank.
The first gas is
Is separated from the sewage stored in the aeration tank is stored on top of the aeration tank,
When positive pressure is generated in the closed aeration tank, it is automatically moved to the absorption tank along the discharge pipe and collected in the absorption fluid without additional device.
The absorption tank
And at least one baffle unit installed in the inner space of the absorption tank so as to be immersed in the absorption fluid, and extending at an inclined direction downward from the inner wall of the absorption tank. delete delete According to claim 1,
And a connecting pipe connecting the aeration tank and the sedimentation tank so that the sewage flows from the aeration tank to the sedimentation tank and installed lower than the absorption tank. According to claim 1,
The absorption tank
An inlet pipe for introducing the absorbing fluid into an inner space;
A drawing pipe installed at an upper portion of the absorption fluid and discharging the second gas separated from the absorption fluid to the outside; And
And a discharge tube for discharging the absorption fluid to the settling tank. delete According to claim 1,
The baffle unit is installed to be spaced apart from each other in the height direction, at least a portion of the septic tank system is arranged to overlap. delete According to claim 1,
The absorption fluid stored in the absorption tank is acid, the septic tank system. According to claim 1,
The absorption fluid stored in the absorption tank is at least one of hydrochloric acid (HCl), sulfuric acid (H2SO4), sodium hypochlorite (NaClO), chlorine dioxide (ClO2) and potassium permanganate (KMnO4) dissolved in water (H2O). . According to claim 1,
The aeration tank is
A pressure sensor measuring a pressure of the first gas; And
And a branch pipe which opens when the pressure of the first gas is equal to or greater than a predetermined pressure and discharges the first gas to the outside.

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