KR101825361B1 - natural purification type personal wastewater treatment facilities - Google Patents

Abstract

The present invention relates to a personal natural purification type wastewater treatment apparatus which is eco-friendly and enables semi-permanent reuse while being in a compact structure and buried. According to the present invention, the personal natural purification type wastewater treatment apparatus includes: an anaerobic tank which has an inlet, draws the drainage and wastewater in, and discharges the phosphorus while removing inorganic substances; an anoxic tank which draws the drainage and wastewater in from the anaerobic tank and initiates a denitrification reaction while removing inorganic substances; an aeration tank which draws the drainage and wastewater in after the drainage and wastewater passes through the anoxic tank and provides aerobic microorganisms for removing phosphorus from organic matter while having a carrier to form a bio-film with the microorganisms attached thereto; a sedimentation tank which settles all microorganisms after receiving the wastewater from the aeration tank and discharges purified water through an outlet; a mesh member which is installed to cover the upper surfaces of the anaerobic tank, anoxic tank, aeration tank, and settlement tank; a crushing layer which is arranged on the upper part of the mesh layer to form layers; a soil layer provided on the upper part of the crushing layer; and a plant layer which is planted on the upper part of the soil layer to have the roots extended to the lower part of the mesh member.

Description

Natural purification type personal wastewater treatment facilities

The present invention relates to an environmentally friendly natural purification type personal sewage treatment apparatus which is compactly buried underground and can be used semi-permanently.

In recent years, as the national income level has improved and the quality of life has increased, there has been a surge in the demand for clean housing and enjoyable houses.

As a result, the number of small-scale housing complex projects such as Donghae complexes is increasing around the valleys and rivers near the city center, and the environmental pollution due to indiscriminate exploitation of the valleys is deepening and water pollution is becoming serious for clear rivers.

As the indiscriminate development of power residential complexes is increasing, interest in eco-house construction, which is environment-friendly and energy-friendly, is increasing. In particular, as the water pollution caused by the wastewater and wastewater has increased, the complaints of the local residents have gradually increased, and each local government has shown great interest in the treatment equipment that can purify water and drainage. It is necessary to develop an ozone / wastewater treatment device that is environmentally friendly and requires little management.

The government has also encouraged eco-friendly housing management by minimizing environmental destruction and preventing unreasonable discharge of water through green building certification and environmental certification system. However, until now, there is no proper regulatory plan and it is necessary to strengthen legal regulations It is scheduled.

At present, however, there is no environmentally friendly water treatment apparatus for home use, and there is a problem that it is difficult to apply the wastewater treatment apparatus used in factories or local governments to the home, in terms of costs and operation after installation.

Registration Utility Model No. 20-0256337

An object of the present invention is to solve such a problem, and it is an object of the present invention to solve the problem that a housing complex is concentrated in a scenic area close to a valley so as to minimize contamination of clear valleys and rivers in a protected area, And to provide a purification type personal sewage treatment apparatus.

It is a further object of the present invention to provide a natural purification type sewage treatment apparatus which can be flexibly increased or decreased according to the size and processing capacity, unlike a mechanical large-capacity sewage treatment apparatus,

As a specific means for achieving the above object, the present invention provides an anaerobic tank in which an inlet is provided to receive sewage, and organic matter is removed while releasing phosphorus; An anoxic tank in which wastewater flows into the anaerobic tank, a denitrification reaction occurs, and organic matter is removed; An aeration tank filled with a carrier to allow the wastewater that has passed through the anoxic tank to flow, provide an aerobic microorganism for removing organic matter, and attach the aerobic microorganism to form a biofilm; A sedimentation tank in which all the microorganisms after sediment is introduced from the aeration tank and the purified purified water is discharged through an outlet; A mesh member installed to cover the upper surface of the anaerobic tank, the anoxic tank, the aeration tank, and the sedimentation tank; A crushed layer provided on the mesh member to form a layer thereon; A soil layer provided on the crushed stone layer; And a plant layer planted on the soil layer, the roots of which extend to the lower portion of the mesh member.

Preferably, the anaerobic tank, the anoxic tank, the aeration tank, and the settling tank are partitioned by a plurality of partition walls in one tank.

Preferably, the nonwoven fabric may be inserted into the lower surface of the mesh member to prevent a crumb or a part of the soil from falling down.

Preferably, a grid-like support plate may be installed on the lower portion of the nonwoven fabric so as to reinforce the supporting force of the load.

Preferably, the carrier may be at least one selected from the group consisting of crushed stone, particulate ceramic, wood chips, foamed polyurethane, foamed polyvinyl alcohol, and suspending microorganism carriers with microorganisms attached thereto.

Preferably, the plant layer may be at least one selected from the group consisting of four seasons grass, parsley, leek, pods, pods, reeds, ropes,

Preferably, the soil layer may be made of a clayey soil.

Preferably, a return line for returning part of the purified water discharged to the outflow port to the anoxic tank may be provided.

The present invention as described above has the following effects.

(1) The present invention is provided with a small-scale purification facility, so that it can be used semi-permanently without consuming many energy sources.

(2) The present invention is advantageous in that lawns planted on the topsoil constitute a beautiful green space, so that they can blend in with the surrounding landscape and can be used as a resting place for residents.

FIG. 1 is a schematic diagram illustrating the construction and operation of a natural purification type personal sewage treatment apparatus according to the present invention.
2 is a cross-sectional view of a natural purification type personal sewage treatment apparatus according to a first embodiment of the present invention.
3 is a partial cross-sectional view of the natural purification type individual sewage treatment apparatus according to the first embodiment of the present invention.
4 is a perspective view of a tank, which is a component of a natural purification type personal sewage treatment apparatus according to a first embodiment of the present invention.
FIG. 5 is an exploded perspective view of elements constituting a plant layer provided on a tank, which is a component of a natural purification sewage treatment apparatus according to a first embodiment of the present invention.
6 is an exploded perspective view of the elements constituting the vegetation layer provided on the tank, which is a component of the natural purification sewage treatment apparatus according to the second embodiment of the present invention.
7 is a partial cross-sectional view of a natural purification type sewage treatment apparatus according to a second embodiment of the present invention.
FIG. 8 is a partial cross-sectional view of a natural purification type personal sewage treatment apparatus according to a third embodiment of the present invention.
9 is a perspective view of a storage frame, which is a component of a natural purification type personal sewage treatment apparatus according to a third embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, where a section such as a layer, a film, an area, a plate, or the like is referred to as being "on" another section, it includes not only the case where it is "directly on" another part but also the case where there is another part in between. On the contrary, where a section such as a layer, a film, an area, a plate, etc. is referred to as being "under" another section, this includes not only the case where the section is "directly underneath"

For reference, natural carriers rich in voids in the sewage treatment sector provide the best environment for microorganisms to survive, eliminating E. coli and BOD by molds and protozoans inhabited there. In addition, the grass on the surface of the ground can reduce the nitrogen and phosphorus removal ability of the inflow water by a long time, and the soil microbes can be supplied to the treatment device to remove BOD and other harmful substances .

In addition, the natural purification type individual sewage treatment apparatus to be developed in the present invention is as shown in the figure as an advanced treatment apparatus capable of discharging clear treatment water by removing contaminants in wastewater and wastewater using purification activities of soil microorganisms and plants.

The pollutants that are the most problematic in the domestic sewage and drainage can be regarded as organic matter that can be a growth source of nutrients and toxic microorganisms such as nitrogen and phosphorus. The A2O process, which is most frequently used for the removal of materials, is a bio-contact oxidation process using a carrier.

The A2O process consisted of an anaerobic tank, anoxic tank, and aerobic tank, and the size was adjusted to 1: 1: 3 in consideration of the pollutant treatment efficiency of living microorganisms in each tank. In the anaerobic tank, phosphorus is released outside the microorganism during the intake of the organic matter by the phosphorus removal microorganism, and half of the organic matter is removed in the course of passing through the anaerobic tank and the anoxic tank. Also, by placing the anoxic tank at the rear of the anaerobic tank, it is possible to prevent the phosphoric acid release of phosphorus-removing microorganisms from being obstructed by the nitrate nitrogen coming from the carrier.

In the anoxic tank, nitrate removal (denitrification) is performed by converting denitrifying microorganisms into N ₂ (gas) using nitrate nitrogen returned from the settling tank as an electron acceptor. Organic matter is used as an energy source for denitrification, which can lead to effective removal of organic matter. In the subsequent aeration tank, the remaining organic matter is removed by aerobic microorganisms, and all the microorganisms are removed from the sedimentation tank together with phosphorus-removing microorganisms that consume excess phosphorus. Further, by providing the second and third aeration tanks, higher nitrification can be maintained.

In the aeration tank, the carrier is filled to prevent the desorption of microorganisms and to maintain environmental conditions strong against environmental factors. In the biofilm process using a carrier, the microorganisms adhere to the carrier to form a biofilm, which is more resistant to rapid environmental changes due to an increase in growth rate, an increase in metabolism activity and an increase in resistance to toxic effects, compared with a microorganism in a dispersed state. The first and second aeration tanks are filled with pore-rich carriers and the third aeration tank is filled with other types of carriers such as oyster shells which are effective for phosphorus removal.

The top of the treatment tank is coated with high quality soil and then lawns are planted. Soil microorganisms and soil animals, which are particularly effective in removing nutrients from the coated soil, are continuously supplied to the treatment tank to improve the treatment efficiency and stabilize the treatment have. The roots planted in the topsoil will go down to the lower part of the septic tank, grow between the supports, and improve the removal efficiency of nutrients such as nitrogen and phosphorus by more than 20%.

The lawn planted on the topsoil can be used as a relaxing space for the residents.

Until now, private sewage treatment plants (less than 10㎥ / day) specialized in small-scale housing complexes have not been commercialized, and compared with relatively large-scale sewage treatment plants (more than 50㎥ / day) .

The municipal sewage treatment facility is mainly installed in urban areas, rural areas, and mountainous areas where it is difficult to install sewage pipes in place of existing wide-area sewage treatment plants or sewage treatment plants of a certain size or more. As the application method, contact oxidation is the most commonly used method, about 45% for contact oxidation, about 25% for activated sludge, 16% for soil trench, about 10% for anaerobic technique and about 4% for other method.

The bio-catalytic oxidation method using a carrier is a basic method to be used in the individual sewage treatment apparatus of the present invention, and it is possible to maximize the treatment efficiency in a small space by keeping the microorganism community of high concentration in the treatment tank by preventing desorption of microorganisms. In addition, since microorganisms adhere to the carrier to form a biofilm, resistance to inflow of toxic substances increases, which is strong against a sudden change in environment, and thus is the most preferred method for small- and medium-sized sewage treatment devices.

The differences between the natural purification type personal sewage treatment apparatus to be developed in the present invention and the existing bio-contact apparatus are as follows.

The soil layer is coated on the top of the treatment tank and the soil microorganisms are continuously supplied to the treatment tank, thereby improving the treatment efficiency and stabilizing the treatment. In the existing bio-contact devices, wastewater microorganisms are mainly used. However, the soil microorganisms have a higher growth rate than the wastewater microorganisms and have a strong resistance to toxic substances. In addition, the soil coating removes odors and eliminates pathogens and pests The efficiency is excellent.

In addition, it is an advanced treatment device that can efficiently remove contaminants in sewage water and purify clear water by using the purification effect of roots and evapotranspiration of planted plants.

The lawn planted on the topsoil can be used as a green space and can be used as a relaxing space for residents.

Conventional large-capacity wastewater treatment devices are not easy to manage due to the complexity of the equipment, and the treatment efficiency is not high. However, the personal sewage treatment apparatus according to the present invention is a device specialized in a small-sized housing complex, which requires almost no management and is an advanced treatment device capable of discharging clean treatment water in a short residence time due to high treatment efficiency. Is a possible packaged processing device.

Hereinafter, a natural purification sewage treatment apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 to 5, the natural purification sewage treatment apparatus according to the first embodiment of the present invention includes an anaerobic tank 110, an anoxic tank 120, aeration tanks 130, 140 and 150, a settling tank 160, a mesh member 230, A crushed stone layer 240, a soil layer 250, and a plant layer 260.

The anaerobic tank 110, the anoxic tank 120, the aeration tanks 130, 140 and 150 and the settling tank 160 are partitioned by a plurality of partition walls 104 in one tank 100, Respectively. Referring to Figure 4, the tank 100 is shown. Since the tanks 110 to 160 are formed in one tank 100 through the partition 104 and then buried in the basement at one time and the soil layer 250 is raised at the top, .

Referring to FIGS. 1, 2 and 4, the anaerobic tank 110 is provided with an inlet 101 to collect sewage, and organic matter is removed while releasing phosphorus.

In the anoxic tank 120, wastewater flows into the anaerobic tank 110, a denitrification reaction occurs, and organic matter is removed.

In the aeration tanks 130, 140 and 150, the wastewater that has passed through the anoxic tank 120 flows, the aerobic microorganisms for removing organic matter are provided, and the carriers are filled to form a biofilm by attaching the aerobic microorganisms. Air supply pipes 131, 141 and 151 for aeration are connected to the air pump at the lower end.

The number of the anaerobic tank 110, the anoxic tank 120, and the aeration tank 130-150 is set to 1: 1: 3, assuming that the volumes constituting one tank are approximately the same.

After the wastewater is introduced from the aeration tanks 130 and 150, the microorganisms are precipitated in the settling tank 160, and the purified water is discharged through the outlet 102.

Here, all the methods such as the method of using the siphon 105 or the overflow can be applied to the movement of the wastewater between the respective sets 110 - 160.

The mesh member 230 is installed to cover the upper surface of the anaerobic tank 110, the anoxic tank 120, the aeration tank 130-150, and the sedimentation tank 160. As the mesh member 230, a wire mesh is used here.

The crushing layer 240 is provided on the mesh member 230 as a layer. The crushed stone constituting the crushed stone layer 240 is not dropped to the bottom by the mesh member 230 but is in the position.

The soil layer 250 is provided on the crushed stone layer 240, and the soil layer 250 may be coated with a clay soil.

The plant layer 260 is planted on the soil layer 250 so that its roots pass through the mesh member 230 and extend down to the sewage of the rods 110-160.

At this time, the nonwoven fabric 220 may be inserted into the lower surface of the mesh member 230 to prevent a crumb stone or a part of the soil from falling down. Since the mesh member 230 applies a member such as a wire net, it falls down due to an external influence such as an external force in the case of soil, and enters the tank 100. However, the nonwoven fabric 220 prevents the falling do.

Further, a storage frame 270 and a grid-shaped support plate 210 are installed on the lower portion of the nonwoven fabric 220 so as to reinforce the supporting force of the load. It is not sufficient to withstand the loads of the crushing layer 240 and the soil layer 250 provided on the nonwoven fabric 220 and the mesh member 110 alone For example.

At this time, the carrier may be one or more of crushed stone, granular ceramic, wooden piece, foamed polyurethane, foamed polyvinyl alcohol, suspending microorganism carrier attached with microorganism, and oyster shell.

For example, in the three aeration tanks 130 to 150, a pore-rich crushed stone carrier is used for the aeration tanks 1 and 2, which are the two aeration tanks 130 and 140, and an oyster shell for the phosphorus removal is used in the last aeration tank 150 It can be filled. Needless to say, natural carriers rich in pores other than crushed rocks and oyster shells can be applied. The natural carrier provides the best environment for the microorganism to survive, eliminating E. coli and BOD by the fungi and protozoans living there. In addition, the grass on the surface of the ground can reduce the nitrogen and phosphorus removal ability of the inflow water by a long time, and the soil microbes can be supplied to the treatment device to remove BOD and other harmful substances .

In addition, the plant layer 260 can be planted by selecting one or more kinds of four seasons grass, buttercups, leeks, pods, pines, reeds, ropes, Since the present invention is applied to homes or is applied to each residential complex, it is likely that the most preferable grass is planted.

1, a return line for returning a portion of the purified water discharged to the outlet 102 to the anoxic tank may be provided.

6 and 7, a natural purification sewage treatment apparatus according to a second embodiment of the present invention is shown.

The difference from the first embodiment of the present invention lies in that a storage frame 360 is added. The storage frame 360 includes a grid-like support plate 310, a nonwoven fabric 320, a wire mesh 330, a crushed stone layer 340, a soil layer (not shown) 350 are housed and supported, and grass 260 is planted at the top.

At this time, the storage frame 360 is installed in the tank opening portion 103.

The lower frame 360a is formed in a shape that supports the rim of the grid-shaped support plate 310. The lower frame 360a supports the frame 360, But only a part of it is left open so that it can be opened.

At this time, a cross bar 360c is installed at a predetermined interval in the lower plate 360a of the receiving frame 360 to more stably support the stored components.

At this time, as described above, the grid-shaped support plate 310, the nonwoven fabric 320, the wire mesh 330, the crushed stone layer 340, and the soil layer 350 are sequentially stored in the storage frame 360, A grass 260 is planted in the soil layer 350.

At this time, referring to FIG. 6, the storage frame 360 is formed of a plurality of storage frames. Here, three of the storage frames 360 are provided in the tank opening portion 103.

Therefore, the storage frame 360 can be separated from the opening portion 103 of the tank one by one or assembled. The storage frame 360 is separated from the opening 103 and cleaned. When the storage frame 360 is returned to its original position, the storage frame 360 returns to its original state. Thus, cleaning, repairing, and carrier exchange can all be done very smoothly.

Referring to FIGS. 8 and 9, a natural purification type private sewage treatment treatment according to the third embodiment of the present invention is shown.

In the third embodiment, the accommodating frame of the second embodiment is partially modified, and an outer frame 470 is added to prevent the adjacent soil from collapsing.

8, when the storage frame 460 is detached from both sides of the storage frame 460, it is possible to prevent the neighboring soil from collapsing into the tank 100, 470). The outer frame 470 can be composed of one but not three, and its cross section is bent at 90 degrees.

Like the second embodiment, the accommodating frame includes a lower plate 460a and a side surface 460b, and may further include a cross bar 460c. An incision 460d is formed at an upper end of the side surface 460a of the accommodating frame 460 so that the lifting lever 461 can be received.

8, when the storage frame 460 is detached, neighboring soil on both sides of the storage frame 460 is supported by the outer frame 470, so that it is not collapsed.

Referring to FIG. 9, a lifting lever 461 is provided on the storage frame 460 so that the storage frame 460 can be easily lifted up and removed.

At this time, the lifting lever 461 is installed on each side face 460a so as to be opposed to each other. The lifting lever 461 is installed to be rotatable on the side face 460a of the housing frame 460, A through hole 461a for inserting a rod, a rod, a pipe, or the like for insertion.

Therefore, the lifting lever 461 is rotated vertically, then the rod is passed through the through hole 461a, and the opposite side is similarly worked. When the rod is lifted up, the entire storage frame 460 is separated .

Conversely, when inserting the receiving frame 460 in place, it can be easily inserted using the rod and the lifting lever 461. The housing frame 460 returns to its original position, and the lifting lever 461 is also returned to its original position.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: tank
101: inlet 102: outlet
104: partition 105: siphon
110: anaerobic tank 120: anoxic tank
13, 140, 150: aeration tank 160: settling tank
210: Grid-type support plate 220: Nonwoven fabric
230: mesh member 240: crushed layer
250: Soil layer 260: Plant layer

Claims (8)

An anaerobic tank in which an inlet is provided to receive sewage, and organic matter is removed while releasing phosphorus;
An anoxic tank in which wastewater flows into the anaerobic tank, a denitrification reaction occurs, and organic matter is removed;
An aeration tank filled with a carrier to allow the wastewater that has passed through the anoxic tank to flow, provide an aerobic microorganism for removing organic matter, and attach the aerobic microorganism to form a biofilm;
A sedimentation tank in which all the microorganisms after sediment is introduced from the aeration tank and the purified purified water is discharged through an outlet;
An anoxic tank, an anoxic tank, an aeration tank, and a sedimentation tank;
A crushed layer provided on the mesh member to form a layer thereon;
A soil layer provided on the crushed stone layer; And
A plant layer planted on the soil layer and having roots extending to the lower portion of the mesh member;
A grid-shaped support plate provided under the mesh member so as to reinforce a supporting force against a load;
The upper plate is opened so as to accommodate the grid-shaped support plate, the mesh member, the crushed stone layer, and the soil layer, and the lower plate is formed in a shape having side faces in all directions. A storage frame;
An outer frame provided on a side surface of the storage frame and bent in a 90-degree section so as to prevent collapse of adjacent soil when the storage frame is removed; And
A receiving frame which is accommodated in a cutout of a side upper end portion of the receiving frame and is provided so that one end thereof can rotate on the cutout portion so as to easily receive and separate the receiving frame, A lifting lever provided with a hole;
Wherein the natural sewage treatment system comprises: The method according to claim 1,
Wherein the anaerobic tank, the anoxic tank, the aeration tank, and the settling tank are partitioned by a plurality of partition walls in one tank. The method according to claim 1,
And a nonwoven fabric is inserted into the lower surface of the mesh member to prevent the crumbling or a part of the soil from falling down. delete The method according to claim 1,
Wherein the carrier is at least one selected from the group consisting of crushed stone, particulate ceramic, wood chips, foamed polyurethane, foamed polyvinyl alcohol, and suspending microorganism carriers with microorganisms attached thereto. The method according to claim 1,
Wherein the plant layer is at least one selected from the group consisting of four seasons grass, parsley, leek, pods, pods, reeds, ropes, gilt roots, and vermiculite. The method according to claim 1,
Wherein the soil layer is made of a clayey soil. The method according to claim 1,
And a return line for returning a part of the purified water discharged to the outflow port to the anoxic tank.

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