KR20100023551A - Non-point pollution source treatment apparatus - Google Patents

Abstract

PURPOSE: A device for processing non-point source pollution is provided to process various contaminants by filtering a large-sized contaminant and contacting suspended materials using a contact media, and to effectively purify contaminant by continuously performing a biological purification. CONSTITUTION: A device for processing non-point source pollution comprises: a contact precipitation tank consisting of first filter tub(110) and a settling tank(120); the second filter tub consisting of a filtering part(310) for processing the contaminant which flows in from the settling tank and a discharging pipe(320) for discharging first rain which passes through the filtering part. An inner part of the settling tank comprises: a holder in which a contact medium(200) is arranged on the upper side and penetration holes are installed; and a connection vessel for injecting the filtered and precipitated first rain into the second filter tub.

Description

NON-POINT POLLUTION SOURCE TREATMENT APPARATUS}

The present invention relates to an apparatus for treating contaminants in a nonpoint pollutant source installed at various points such as the ground, and more particularly, to a nonpoint source treatment apparatus for treating contaminants more efficiently.

Nonpoint pollutants are pollutants contained in the surface runoff of rainwater that have passed through agricultural lands, ranches, deforestation areas, mining areas, urban construction sites, parking lots, and roads during rain.

Nonpoint sources, unlike point sources, are difficult to pinpoint where the pollutants are released and are difficult to measure.

Another characteristic of nonpoint source is that it is heavily influenced by the weather. In other words, pesticides and fertilizers scattered on rice fields and fields, corrosive soils such as fallen leaves in forest areas, and oil from roadsides leaked from cars can cause heavy rain. It is swept away and polluting the river.

As a method of treating contaminants in such nonpoint sources, the reservoir type (reservoir tank, pond, artificial wetland, etc.), the infiltration type (penetration tank, permeate ditch, pore pavement, etc.), the vegetation type (vegetable filtration unit, vegetation channel, etc.) And device types (storm filter, sand filter, storm acceptor, storm gate, etc.).

In the case of the reservoir type, a relatively large amount of land is required, so it is difficult to install due to the rise of land prices in developed areas, and in the summer, pests are generated and health problems occur.

The infiltration type is difficult to maintain due to the continuous inflow of soil, suspended solids and contaminants, and the treatment efficiency decreases due to the clogging of voids.

Vegetation types require more than a certain amount of land and ideal environmental conditions to maintain vegetation. In the case of device types, the efficiency of treating various pollutants is less efficient. There is a problem that must be increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and it is a technical object of the present invention to provide a non-point source processing apparatus capable of efficiently treating contaminants in a non-point source having various forms and types.

In order to solve the above problems, the first filter tank is installed to communicate with the first filtration tank and the first filtration tank in which the inlet is introduced into the initial rainwater and the filter net for filtering the initial rainwater introduced therein is installed to communicate with the first filtration tank. A contact settling tank consisting of a settling tank for precipitating the initial rainwater filtered in; And a second filtration tank installed in communication with the settling tank and having a filtration unit for treating the contaminants introduced from the settling tank and a discharge pipe for discharging the initial rainwater passing through the filtration unit. Inside is installed spaced apart to have a certain height at the bottom portion, a through hole is formed and the upper surface is a cradle in which the contact material is disposed, and a communication tube for introducing the initial rainwater filtered and precipitated in the settling tank into the second filtration tank is formed. It is characterized by.

The non-point pollutant treatment apparatus of the present invention is characterized in that a partition wall network is provided at a communication port communicating the first filtration tank and the settling tank.

In the boiling point contaminant treatment apparatus of the present invention, the filter net is detachably installed in the first filtration tank.

The non-point source treatment apparatus of the present invention is characterized in that a hopper is formed at the bottom of the contact precipitation tank.

The non-point source treatment apparatus of the present invention is characterized in that the contact material is a fixed type fixed to the holder or a floating type floating on the water according to the increase of the initial rain.

The non-point source treatment apparatus of the present invention is characterized in that the contact member comprises a plurality of wing plates and a wing plate support projecting at a predetermined interval between the plurality of wing plates.

In the non-point pollutant source treatment apparatus of the present invention, the communication tube has a U-shape and is installed higher than the contact member, and a communication hole is formed at a side of the vertical lower portion of the communication tube, and a lower end thereof is closed, and an upper end portion of the vertical upper portion of the communication tube is closed. It is open, characterized in that the horizontal portion of the communication tube is formed so as to communicate with the vertical portion.

In the non-point pollution source treatment apparatus of the present invention, the filtration unit is composed of a filter medium and a housing for accommodating the filter medium, the through-hole is formed on the surface of the housing and the hollow portion communicating with one end of the discharge pipe inside the housing. By being formed, the contaminants introduced through the through-holes from the outside of the housing is filtered by the filter medium and then flows out to the hollow portion and is discharged to the discharge pipe.

In the non-point contaminant treatment device of the present invention, the filter medium is mixed with a microbial active material, the microbial active material is immersed in the inside of the nutrient to the porous carrier with the nutrient adsorbed to the culture tank together with the microorganisms necessary for the treatment of nutrients and contaminants It is characterized in that the nutrient and microorganism are cultured and slid to the porous carrier by the contact with the porous carrier to be formed.

The non-point source treatment apparatus of the present invention is characterized in that the microorganisms introduced during the production of the microorganism active material are microorganisms cultured to meet the site conditions by collecting contaminants in the region to be purified and mixed with the humus soil. do.

The non-point pollutant source processing apparatus of the present invention is characterized in that the discharge pipe inside the second filtration tank is formed with a flow pipe extending upward while communicating with the discharge pipe.

According to the present invention, contaminants having a large size in the nonpoint source can be filtered and the suspended solids can be contacted by contact materials to treat various types of contaminants.

Furthermore, the non-point source treated in this way is mixed with media such as sand and contacted with a porous carrier adsorbed by microorganisms and nutrients, so that even when a large amount of rainfall is introduced, the microorganisms are not swept away from the rainfall and accumulated in the filter medium. By carrying out the biological purification process through the decomposition of the material it is possible to more effectively clean the pollutants.

Therefore, in the nonpoint source processing apparatus of the present invention, it is possible to effectively treat contaminants in nonpoint source having various kinds and forms.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a plan view showing an entire system including a non-point source treatment apparatus of the present invention. 2 is a side sectional view showing a non-point source treatment apparatus of the present invention.

The non-point source treatment apparatus of the present invention comprises a contact settling tank (100) and a settling tank (120) comprising a first filtration tank (110) to which initial rainwater is introduced and filtered, and a precipitation tank (120) installed to communicate with the first filtration tank (110). It is installed to communicate with) and consists of a second filtration tank 300 to filter and then discharge the initial rainwater again.

The first filtration tank 110 has a container shape and the inlet 111 through which the initial rainwater flowing out from the drainage passage 10 passes through the initial excellent separation device 20 is formed on the upper portion thereof, and the filter net body 112 therein. ) Is detachably installed in the first filtration tank 110 and can be carried out to the outside.

The lower portion of the first filtration tank 110 is formed to communicate with the precipitation tank 120, the first communication port 113 for flowing the initial rainwater filtered through the filter net 112 to the precipitation tank 120, the communication port The partition wall net 114 having a mesh size smaller than that of the filter net body 112 is formed at 113.

On the other hand, the hopper 116 is installed in the lower portion of the first filtration tank 110 to discharge the sludge of the initial rainwater, and the cover 118 is provided at the upper portion.

The initial rainwater filtered in the first filtration tank 110 is introduced into the precipitation tank 120 through the communication port 113 formed in the lower portion of the precipitation tank 120.

The inside of the settling tank 120 is installed to have a predetermined height from the bottom, and a cradle 131 having a through hole 131 is installed, and a contact member 200 is installed on the top surface of the cradle 130. 3 is a three-dimensional perspective view of one embodiment of a contact member of the present invention.

The contact member 200 includes a plurality of spherical functional carriers 220 and carrier fastening means 230 for connecting the functional carriers 220 and the plurality of functional carriers 220 in a vertical form to each other. do.

3A is a plan view and a side cross-sectional view of one embodiment of a contact member of the present invention. 3B is a three-dimensional view of the functional member of the contact member of the present invention.

The functional carrier 220 includes an aerobic carrier portion 240 that facilitates water current contact and an anaerobic carrier portion 250 that is located at the center of the aerobic carrier portion 240 and has little water flow contact.

Aerobic carrier portion 240 is composed of a plurality of wing plates 241 and wing plate support 242 to prevent deformation of the wing plate 241 in the outer portion.

The anaerobic carrier portion 250 is a through-hole tube 251 located through the center of the aerobic carrier portion 240, and a water flow channel 252 provided at one end of the through-hole tube 251 and provided with a plurality of holes. And a plurality of flow control units 253 protruding along the inside of the through-hole 251.

In the present embodiment, the functional carrier 220 is formed in a spherical shape, but is not limited thereto. The functional carrier 220 may be formed in a cylindrical shape or other shape.

Figure 4a is a plan view showing a state in which the functional carrier and the fastening member is coupled to each other carrier fastening means in one embodiment of the contact member of the present invention, Figure 4b is a functional carrier and fastening member in an embodiment of the contact member of the present invention It is sectional drawing which shows the state which carrier fastening means couple | bonded with each other.

Carrier fastening means 230 is one end is connected to communicate with each other in the center and the other end is composed of a plurality of connecting pipes 231 extending in the radial direction.

In each connection pipe 231 of the carrier fastening means 230, the contact member 200 is formed by inserting and fixing the through-hole pipe 251 of the functional carrier 220.

In the present embodiment, the carrier fastening means 230 is formed in six radial shapes, but is not limited thereto, and may be formed of four radial shapes or two radial shapes.

In addition, in the present embodiment, the contact member 200 is configured such that the plurality of functional carriers 220 are connected by the carrier fastening means 230, but is not limited thereto. It is also possible to use only the functional carriers 220.

In the embodiment of the present invention, the contact member 200 may be made of a fixed type that is fixed to the cradle 130 or may not be fixed to the cradle 130 and may be made of a floating type that is floating in an initial rainwater according to the amount of rainwater.

On the other hand, the inside of the settling tank 120 is provided with a tubular communication tube 140.

The vertical lower portion 141 of the communication tube 140 is closed at the lower end and a through hole 141a is formed on the side, the vertical upper portion 142 is formed so that the upper end is opened to function as a overflow pipe.

The horizontal portion 143 is formed to communicate with the vertical upper portion 141 and the vertical lower portion 142 and is installed to communicate with the second filtration tank 300.

The communication tube 140 formed as described above is installed higher so that the lower end of the vertical lower portion 141 does not contact the contact member 200.

The bottom of the settling tank 120 is formed of an inclined portion 150 having the same or greater inclination than the hopper 116 of the first filtration tank 110, so that the sludge accumulated in the bottom of the settling tank 120 is the first filtration tank. It is formed to be moved to the hopper 116 of (110).

The upper surface of the settling tank 120 is provided with a cover 160 that can be opened and closed.

The second filtration tank 300 includes a filtration unit 310 for processing the initial rainwater introduced and a discharge pipe 320 installed to communicate with the filtration unit 310.

5 is an enlarged cross-sectional view showing a filtration part of an embodiment of the present invention.

The filtration unit 310 is composed of a housing 311 and a filter medium 312 accommodated in the housing 311.

The housing 311 has a rectangular box shape or a cylindrical shape, and all of the through holes 311a are formed on the surface thereof, and a hollow part 313 for inserting an end portion of the discharge pipe 320 is formed at the bottom thereof.

The filtration unit 310 formed as described above is supported by the support 315 fixed around the discharge pipe 320.

The filter medium 312 may be contained in the bag 314 and accommodated in the housing 311. As the filter medium 312, a known filter medium such as activated carbon or sand may be used.

In addition, the filter medium 312 may be formed by mixing the microbial activator produced by the following method.

First, the porous carrier is immersed in the interior of the nutrient to perform the process of adsorbing the nutrient to the carrier. The material of the porous carrier is not particularly limited, and porous ceramics or porous minerals containing silicon may be used, and may have a powdery, granular or bulky form.

Then, the microbial activator is prepared by culturing the microorganisms on the surface and the cavity of the porous carrier by filling the porous carrier with the nutrient adsorbed with the nutrient in the culture tank and adding microorganisms necessary for initial rainwater treatment to contact the carrier.

The microorganism active material thus prepared is adsorbed together with the microorganisms and the nutrients required for cultivation of the microorganisms on the surface and the cavity of the porous carrier, so that the microorganisms are not swept away even when the large initial rainwater is treated. By culturing in an adsorbed state, the microorganisms necessary for initial rainwater treatment are stably supplied, thereby facilitating rainwater treatment.

For example, in areas where a large amount of specific pollutants are discharged, such as a specific industrial plant area, the first rainwater to be polluted is mixed with humus soil to cultivate effective microorganisms, and then the specific microorganism is mixed with a nutrient adsorbed porous carrier. It is also possible to form an effective microbial active material suitable for the purification of a specific area by culturing in a culture tank together with.

On the other hand, the discharge pipe 320 is formed with one or a plurality of overflow pipe (330). The overflow pipe 330 is formed so that the lower portion is in communication with the discharge pipe 320 and is configured to have a pipe shape extending upward.

The height of the overflow pipe 330 is determined in consideration of the rainfall characteristics of the area where the non-point source treatment apparatus is installed.

An openable cover 340 is installed at an upper portion of the second filtration tank 300, and a hopper may be additionally installed at the lower portion thereof as necessary.

Next, the operation of the non-point source treatment apparatus thus formed will be described.

First, the initial rainwater passing through the initial excellent separation device 20 is introduced into the first filtration tank 110 and passes through the filter net 120 to basically filter the large pollutants. Sludge weighing out of the filtered pollutants is discharged to the outside through the hopper 160 installed in the lower portion of the first filtration tank (110).

The initial rainwater filtered in the first filtration tank 110 passes through the communication port 130 and is again filtered by the partition wall network 140 before being moved to the settling tank 120.

The initial rainwater flowing into the bottom of the settling tank 120 flows through the top and passes through the through hole 131 of the cradle 130 to collide with the contact member 200 to settle down to the bottom of the settling tank 120. The contact member 200 is formed to have a large surface area, and the contaminants included in the initial rainwater collide with the contact member 200 to facilitate precipitation.

The contact member 200 is placed on the upper surface of the cradle 130 installed to have a predetermined height at the bottom of the settling tank 120, even if the initial rain is reduced to the contact member 200 to the cradle 130 or less Does not move so that it is not buried in the sediment.

The precipitated precipitate is moved along the inclined portion 150 formed on the bottom of the settling tank 120 to be discharged to the outside through the hopper 160 of the first filtration tank 110.

Initial rainwater purified in the settling tank 120 is introduced into the vertical lower portion 141 of the communication tube 140, the vertical lower portion 141 is disposed higher than the contact member 200, the precipitate or suspended matter of the initial rainwater The communication tube 140 is introduced into the removed state.

In addition, even when the vertical rain portion 141 of the initial rainwater flows into the second filtration tank 300 through the through-hole 141a formed in the vertical lower portion 141, the large size of the pollution in the initial rainwater that has been treated It is to prevent the entry of substances.

On the other hand, if there are a lot of rainwater treated in the settling tank 120, it flows directly into the second filtration tank 300 through the vertical upper portion 142 of the communication tube 140.

The initial rainwater introduced from the settling tank 120 is filtered while passing through the filtration unit 310 and then discharged through the discharge pipe 320 installed to communicate with the filtration unit 310.

Meanwhile, the filtration unit 310 may perform physical filtration using sand or the like as the filter medium 312, or use a mixture of microbial activators formed by culturing and sliding microorganisms on the surface and the cavity of the porous carrier. In this case, the contaminants attached to the carrier are purified by decomposition by microorganisms.

On the other hand, when the overflow pipe 330 formed in the discharge pipe 320 is only part of the initial rainwater is supplied in the filter portion 310 is filtered to discharge the remaining rainwater through the discharge pipe 320 immediately do.

The initial rainwater discharged from the discharge pipe 320 may be directly discharged to the drain pipe 320 or may be discharged by being discharged to a penetration facility such as an infiltration trench (not shown).

In this manner, the initial rainwater having a low flow rate and high pollutant concentration is filtered through the filtering unit 310, and when the flow rate is increased, the concentration of the pollutant is relatively small. By discharging through the flow pipe 330 it is possible to treat a large flow rate of contaminants without excessively increasing the size of the device.

As described above, in the non-point source treatment apparatus of the present invention, contaminants in the non-point source are passed through two physical filtration processes, passed through the precipitation and removal of suspended solids, and filtered and adsorbed on the filter material to be processed while undergoing microbial decomposition. Various types and types of nonpoint source pollutants are effectively purged.

1 is a plan view showing an entire system including a non-point source treatment apparatus of the present invention.

2 is a side sectional view showing a non-point source treatment apparatus of the present invention.

3 is a three-dimensional perspective view of one embodiment of a contact member of the present invention.

4A is a plan view and a side cross-sectional view of one embodiment of a contact member of the present invention.

4B is a three-dimensional view of the functional member of the contact member of the present invention.

5A is a plan view illustrating a state in which a functional carrier and a fastening member are coupled to each other by a carrier fastening means in one embodiment of the contact member of the present invention.

5B is a cross-sectional view showing a state in which a functional carrier and a fastening member are coupled to each other by a carrier fastening means in one embodiment of the contact member of the present invention.

6 is an enlarged cross-sectional view showing a filtration unit of the non-point source treatment apparatus of the present invention.

Claims (11)

It is installed to communicate with the first filtration tank and the first filtration tank in which the inlet part into which the initial rainwater flows is installed and the filtering network for filtering the initial rainwater introduced therein, and is settled to settle the initial rainwater filtered in the first filtration tank. Contact sedimentation tank; And It is installed to communicate with the settling tank and has a second filtration tank therein is installed a filtration unit for processing the contaminants introduced from the settling tank and a discharge pipe for discharging the initial rainwater passing through the filtration unit, In the inside of the sedimentation tank is installed spaced apart to have a predetermined height at the bottom portion, the through-hole is formed and the cradle that the contact material is disposed on the upper surface, Non-point source treatment apparatus characterized in that the communication pipe for introducing the initial rainwater filtered and precipitated in the precipitation tank to the second filtration tank is formed. The method of claim 1, Non-point source treatment apparatus, characterized in that the partition wall network is installed in the communication port communicating the first filtration tank and the settling tank. The method according to claim 1 or 2, The filter network is a non-point source treatment apparatus, characterized in that detachably installed in the first filtration tank. The method according to claim 1 or 2, Non-point source processing apparatus, characterized in that the hopper is formed on the bottom portion of the contact precipitation tank. The method according to claim 1 or 2, The contact material is a non-point source processing apparatus, characterized in that the fixed type fixed to the cradle or floating type floating on the water according to the increase of the initial rain. The method of claim 5, The contact member is a non-point source treatment apparatus, characterized in that consisting of a plurality of wing plates and the wing plate support protruding at a predetermined interval between the plurality of wing plates. The method according to claim 1 or 2, The communicating tube has a ㅏ shape and is installed higher than the contact member, The communication hole is formed on the side of the vertical lower portion of the communication tube and the lower end is closed, The upper end of the vertical upper portion of the communication tube is opened, Non-point source processing apparatus, characterized in that the horizontal portion of the communication tube is formed so as to communicate with the vertical portion. The method according to claim 1 or 2, The filter portion is composed of a filter medium and a housing for accommodating the filter medium, Through-holes are formed on the surface of the housing, and a hollow portion communicating with one end of the discharge pipe is formed inside the housing. Non-point source treatment apparatus characterized in that the contaminants introduced through the through-hole from the outside of the housing is filtered by the filter medium and then flowed out to the hollow portion and discharged to the discharge pipe. The method of claim 8, The filter medium is mixed with a microorganism active material, The microorganism active material is immersed in the inside of the nutrient, the nutrient adsorbed porous carrier with the microorganisms and the microorganisms required for the treatment of contaminants and nutrients and microorganisms are cultured and adhered to the porous carrier by contacting the porous carrier. Non-point source treatment apparatus, characterized in that formed. The method of claim 9, The microorganism to be introduced during the production of the microorganism active material is a non-point source treatment apparatus, characterized in that the microorganisms are cultured to meet the site conditions by collecting contaminants in the area to be purified and mixed with the humus soil. The method according to claim 1 or 2, Non-point source treatment apparatus characterized in that the discharge pipe inside the second filtration tank is formed in communication with the discharge pipe extending upwardly.

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