KR101565593B1 - Non-point source contaminant treatment device - Google Patents

Abstract

The present invention relates to a non-point pollution treatment device and, more specifically, to a non-point pollution treatment device to separate and purify initial rainwater containing a large amount of non-point pollutants in a rainfall. The non-point pollution treatment device comprises: a settling tank in which a wastewater inflow pipe is installed; and a filtering tank separated from the settling tank by a barrier wall and communicated with the settling tank through a penetration part formed in the lower part of the barrier wall. A settling tank pump to discharge internal sludge and wastewater of the settling tank is installed in the settling tank. The filtering tank comprises: a partition wall formed in one side to set a limit to a storage space; a filter support plate installed between the partition wall and the barrier wall to have a distribution space positioned in the lower part to be communicated with the penetration part and a filter space positioned in the upper part to arrange a filter part; a treated water outflow pipe arranged in the upper part of the storage space; a treated water pump installed in the storage space to supply treated water; a backwash water supply pipe connected to the treated water pump to wash the filter part in the upper part; and a washing water supply unit to supply the treated water in the storage space to the distribution space.

Description

[0001] The present invention relates to a non-point source contaminant treatment device,

The present invention relates to a non-point pollution control apparatus, and more particularly, to a non-point pollution control apparatus for separating and purifying an initial pollutant containing a large amount of nonpoint pollutants during rainfall.

Water pollution sources are divided into point pollution sources and non-point pollution sources. Point pollution sources are mainly used for monitoring the occurrence area and generation amount such as domestic sewage generated in general households or business areas, industrial wastewater discharged from factories, animal wastewater generated in large- This is a relatively easy subject and is the main object of sewage disposal.

On the other hand, non - point pollution source refers to drainage from agricultural drainage, mine waste water, livestock wastewater from small scale livestock facilities, living sewage or forest in rural areas without sewerage, and these pollutants are relatively dependent on natural treatment due to less contribution of pollution.

More specifically, nonpoint sources are also referred to as non-specific sources, surface sources, mobile sources, or other sources of water quality. Unlike point sources having specific discharge routes, nonpoint sources are urban drainage, , Or a place or area that generates non-point pollutants through an unspecified discharge path,

Aquaculture facilities, transportation facilities, maintenance or disposal facilities, simplified processing facilities for enriched fisheries products, photo processing facilities, etc., which have been changed from 'specific facility' to 'other water pollution source' , Product yard, land change area, and other facilities.

Non-point pollutants are pollutants that come out along with surface runoffs when they are exposed to rain. These include fertilizers, pesticides, soil sprinkling plants, housing spills, traffic pollutants, dust and garbage in urban areas, Water, and air pollutants that have fallen on the surface of the earth.

Therefore, rainwater containing all pollutants is actually the main source of nonpoint pollution. Since non-point pollutants usually flow out with a lot of rainfall, there is a large difference between daily and seasonal emissions, and it is difficult to forecast and quantify, and it is affected by weather conditions, geology, and topography which are difficult to manure.

Until now, the central government-level management and support for pollutant treatment has been concentrated on workplaces, sewage treatment plants, wastewater treatment facilities, animal wastewater treatment facilities, and manure treatment facilities with clear source of pollution. However, with the recent comprehensive management of the four major rivers and the management of the total amount of water pollutants, it is difficult to confirm the exact runoff path, and management of non-point pollutants such as roads and parking lots in which inflow of pollutants is intermittently interrupted is strengthened. .

However, the above-mentioned apparatus has a short life span of filter media and facilities due to the treatment of excellent whole volume, can not recycle the effluent filtered through the treatment tank as backwash water, and can not observe the state of discoloration of the filter layer, Is not smooth.

Korean Patent No. 10-1244122

An object of the present invention which has been devised to solve the above-mentioned problems is to provide a non-point pollution treatment apparatus which can be automatically backwashed by using treated water and is easy to install and repair by an operator entering and exiting through a manhole, There is.

In order to achieve the above object, the present invention provides a sedimentation tank, And a filtration tank which is separated from the sedimentation tank by a partition and is connected to a penetration portion formed in a lower portion of the partition, wherein a settling tank pump for discharging sludge and wastewater in the settling tank is installed in the settling tank, A partition wall formed to define a storage space at one side thereof and a partition space communicating with the perforation section at a lower portion thereof and a filter medium support plate installed between the partition wall and the partition wall such that an upper portion of the partition wall is provided with a filter medium space, A treatment water pump provided in the storage space for supplying treatment water, a reverse water supply pipe connected to the treatment water pump and backwashing from the upper side of the filter unit, And washing water supply means for supplying treated water in the storage space to the distribution space.

And a manhole is provided in the settling tank and the filtration tank.

The bottom of the settling tank is provided with an inclined portion for collecting sludge and sewage to one side.

In the sedimentation tank, a float prevention plate is provided below the penetrating portion to prevent inflow of the contaminant into the penetrating portion.

Further, the penetrating portion can be opened and closed.

In addition, the filter support plate is supported by the support legs.

In addition, the cross-sectional shape of the support leg is circular, elliptical, or polygonal.

Further, the support leg is provided with a vortex generating means for generating vortex.

The vortex generating means is a protrusion formed on a side surface of the support leg.

The vortex generating means is a concave portion formed on a side surface of the support leg.

Further, a plurality of support legs are provided, a mixing rope is provided between the support legs, and a length of the mixing rope is longer than a distance between adjacent support legs.

The washing water supply means is a washing water supply valve installed at a lower portion of the separation wall to intermittently supply the treatment water in the storage space.

The washing water supply means is a washing water supply nozzle connected to the process water pump and installed in a process water supply pipe arranged in the distribution space.

The washing water supply means is connected to the treated water pump and is provided in the upper and lower corner portions of the dispensing space in a direction from the separating wall toward the perforating portion, and a plurality of dispensing space washing nozzles are provided, And is a dispensing space washer having dispense space washer nozzles for uniformly injecting and supplying treated water.

In addition, the distribution space washing nozzle is arranged to be inclined toward the penetration portion.

In addition, a penetrating portion cleaning nozzle connected to the treatment water supply pipe communicating with the treatment water pump is disposed at one or more of the side of the settling space and the side of the distribution space of the penetrating portion.

Further, the filter unit is characterized in that a plurality of filter units are stacked.

Further, the filter unit is characterized by being a filter material bag filled with the filter material.

In addition, the filter unit is characterized in that the filter unit is mounted on a filter unit arranged horizontally.

Further, the filter unit is composed of a plurality of layers, and the filter material of each layer is different in particle size.

According to the present invention, stable wastewater can be filtered by a bottom-up filtration system, and automatic backwashing is possible using filtered wastewater. Further, the structure is simple and easy to install, and all the facilities of the non-point pollution control apparatus can be installed or managed while the operator enters and exits through the manhole.

Particularly, it is also possible to wash not only the filter medium portion in the backwash but also the distribution space in which the wastewater is uniformly supplied to the filter medium portion. Therefore, it is possible to prevent the clogged material from accumulating in the distribution space and to block the contaminants that have been desorbed by the backwash of the filter material portion.

1 is a schematic view of a non-point pollution control apparatus according to a first embodiment of the present invention.
2 is a perspective view of a support beam used in the apparatus for treating non-point pollution of Fig.
3 is a plan sectional view of the dispensing space of the apparatus for treating non-point pollution of Fig.
Figure 4 is a variation of the support beam of Figure 2;
5 is a schematic view of a non-point pollution control apparatus according to a second embodiment of the present invention.
6 is a schematic view of a non-point pollution control apparatus according to a third embodiment of the present invention.
7 is a schematic view of a non-point pollution control apparatus according to a fourth embodiment of the present invention.
8 is a perspective view of a dispensing space having a flushing tube used in the apparatus for treating non-point pollution of Fig.
Figure 9 is a side cross-sectional view of the dispensing space of Figure 8;
10 is a schematic view of a non-point pollution control apparatus according to a fifth embodiment of the present invention.
11 is a schematic view of a non-point pollution control apparatus according to a sixth embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components, and the same reference numerals will be used to designate the same or similar components. Detailed descriptions of known functions and configurations are omitted.

First, a non-point pollution control apparatus 100 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG. The apparatus for treating non-point pollution (100) comprises a sedimentation tank (102) and a filtration tank (104). The settling tank 102 and the filtration tank 104 are separated from each other by a partition wall 120. Manholes 108 and 144 are installed in each of the settling tank 102 and the filtration tank 104 for installation and maintenance. The manholes 108 and 144 are respectively provided with manhole covers 106 and 146 to prevent foreign matter from entering.

The sedimentation tank 102 is provided with a fresh water inlet pipe 108 through which rainwater or the like is introduced. The wastewater inlet pipe 108 is provided with a wastewater inlet valve 110. In the sedimentation tank 102, a sedimentation tank pump 114 for collecting and discharging sewage water and settled sludge is installed. The settling tank pump 114 is connected to the outside through a drain pipe 116. The drain pipe 116 may be connected to a wastewater or wastewater transport vehicle.

An inclined portion 112 is provided on the bottom of the sedimentation tank 102. The inclined portion 112 moves the contaminants or sludge to one side to facilitate the discharge by the settling tank pump 114. The inclined portion 112 may be integrally formed on the bottom of the sedimentation tank 102 or may be provided with a separate inclined plate.

A through hole 122 is formed in a lower portion of the partition 120. The penetration portion 122 may be formed of a net such as a screen, or may be installed to be opened or closed. Therefore, the settling space 148 in the settling tank 102 is communicated with the dispensing space 152 of the filtration tank 124 by the penetration portion 122.

In the sedimentation tank 102, a float prevention plate 118 may be installed below the penetration portion 122. The float prevention plate 118 may be formed of a net or the like, and one end may be fixed to the lower side of the penetration portion 122 and the other end may be inclined upward.

The filtration tank 124 has a distribution space 152 below the filter material portion 126, a filtration space 150 above the filter material portion 126, a distribution space 152 below the filter material portion 126, And a storage space 154 separated by the separation wall 136 in the filtration space 150. The filtration space 150 and the storage space 154 communicate with the upper side of the separation wall 136. Therefore, the treated water in the filtration space 150 is moved and stored in the storage space 154, beyond the separation wall 136.

A treatment and feeding outflow tube 140 is disposed above the storage space 154 to discharge the treated water. The treated milk feeding outflow pipe 140 is connected to another water treatment facility or the like. In addition, a treated water outflow valve 142 is provided in the treated water feeding outflow pipe 140 to control the discharge of treated water.

A wash water supply valve 132 is provided below the separating wall 136. The wash water supply valve 132 serves to supply or shut off the treated water stored in the storage space 154 to the distribution space 152. Therefore, not only the backwash but also the distribution space 152 can be intermittently cleaned, and the wastewater can be uniformly distributed through the distribution space 152 by removing the contaminants.

The filter unit 126 is disposed above the filter support plate 128 and the filter support plate 128 is supported by the support leg 130.

The filter unit 126 is made of a filter material, and the filter material can be selected and operated by using a particulate filter material, having adsorbability to porosity, and having a strong removability with respect to a specific pollutant material depending on conditions of use. As a filter material used in the present invention, a known filter material can be used, and known filter materials commonly used include anthracite for removing turbidity, sand used as a filter material of a filter, Activated carbon to remove color and odor, and zeolite for phosphate removal. These materials can be selectively constituted by the filter media depending on the pollution characteristics of the influent water.

Preferably, the plurality of divided plate members can be arranged and assembled so that the filter support plate 128 can be inserted into the manhole 146. The material support plate 128 may be made of metal or plastic, and may be formed of a porous plate to support the filter material of the filter unit 126. However, it is also possible to increase the size of the through holes of the perforated plate and to arrange a screen-type net that is permeable to the upper side of the filter material supporting plate 128 for the convenience of production.

A plurality of support legs 130 for supporting the filter medium support plate 128 may be provided, and the cross-sectional shape of the support legs 130 may be variously shaped, circular, elliptical, or the like. 2, a protrusion 156 may be formed to form a vortex to move the contaminants in the distribution space 152 toward the through-hole 122 side.

In Embodiment 1, a supporting leg 130 having a rectangular cross section is used, and the projection portion 156 has a first slope 158, a second slope 160, and a third slope 162. The first inclined surface 158 faces the washing water supply valve 132 and allows the supplied process water to be diverted and moved in the width direction of the support leg 130. The second inclined surface 160 is continuously formed on the first inclined surface 158 to assist the first inclined surface 158 to further increase the movement of the process water in the width direction of the support leg 130. The third inclined surface 162 may be inclined to the opposite side from the rear end of the second inclined surface 160 so that a vortex may be abruptly formed at the rear end of the third inclined surface 162. That is, the first to third inclined surfaces 158, 160 and 162 have a substantially trapezoidal shape. Also, the first to third inclined surfaces 158, 160, 162 may be curved.

3, by the support leg 130, a vortex is formed as the process water moves in the width direction of the support leg 130. As shown in Fig. Between the support legs 130, a mixing rope 164 is provided. The mixing rope 164 is a rope having a longer length than the width between the support legs 130 and is installed at the bottom of the distribution space 152. As a result, when a vortex is generated by the support leg 130, the mixing rope 164 is subjected to the wave motion by the force of the vortex, and as a result, The same impurities can be dispersed and mixed in the process water. Therefore, the cleaning effect of the distribution space 152 can be further improved.

The support legs 130 may be variously modified. In particular, the support legs 168 may be provided with the recesses 170 as shown in FIG.

A treatment water pump 134 is installed in the storage space 154. The treatment water pump 134 may pump the treated water to the storage space 154 and supply the treated water to the reverse water supply pipe 138. The reverse water supply pipe 138 is located on the upper side of the filter unit 126 and discharges treated water downward. To this end, the backwash water supply pipe 138 is provided with a backwash nozzle.

The non-point pollution control apparatus 100 according to the first embodiment of the present invention is basically configured as described above. Hereinafter, an operation process of the non-point pollution control apparatus 100 will be described. When the wastewater is introduced through the wastewater inlet pipe 108, the wastewater is supplied to the distribution space 152 through the penetration part 122 while being precipitated in the precipitation tank 102.

When the wastewater is continuously supplied, the wastewater flows through the filter unit 126 while being filtered. The filtered process water is accumulated in the filtration space 150 and stored in the storage space 154 beyond the separation wall 136. Then, it is discharged to the outside through the process feeding / drinking outflow pipe 140.

At the time of backwashing, the settling tank pump 114 is first operated to remove the wastewater stored in the settling tank 102, and the treated water pump 134 is operated to backwash. The contaminants adsorbed on the filter media fall into the distribution space 152 and flow into the deposition space 148 via the penetration part 122. [ Then, it is discharged to the outside by the settling tank pump 114. It is also possible to open the penetration portion 122 at the time of back washing.

The dispensing space 152 can be cleaned by supplying the treated water to the dispensing space 152 by opening the wash water supply valve 132 separately from the backwashing or the backwash. At this time, a vortex is generated by the support legs 130, and contaminants or the like accumulated in the distribution space 152 are dispersed to facilitate discharge through the penetration part 122. Particularly, the mixing rope 164 can disperse more actively.

Next, a non-point pollution control apparatus 101 according to a second embodiment of the present invention will be described with reference to FIG. The same components as those of the non-point pollution control apparatus 100 of the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

The non-point pollution control device 101 has a function of directly cleaning the penetration part 122. A treatment water supply pipe 180 is connected to the treatment water pump 134 and the treatment water supply pipe 180 is connected to the penetration part cleaning nozzles 182 and 184 provided around the penetration part 122 . The penetrating portion cleaning nozzle 182 is sprayed toward the deposition space 148 on the side of the distribution space 152 to clean the contaminants attached to the penetration portion 122. The penetrating portion cleaning nozzle 184 is located in the vicinity of the perforation 122 in the settling space 148, particularly in the direction parallel to the perforation 122 (the direction of movement of the wastewater through the perforation 122) So that contaminants attached to the penetration portion 122 can be removed. Particularly, by supplying the treated water continuously or intermittently to the penetration portion cleaning nozzles 182 and 184, it is possible to prevent freezing of the peripheries around the penetration portion 122 in winter.

Next, a non-point pollution control apparatus 103 according to the third embodiment of the present invention will be described with reference to FIG. The same components as those of the non-point pollution control device 100 of the first embodiment among the components constituting the non-point pollution control device 103 are denoted by the same reference numerals and the description thereof will be omitted.

The non-point pollution control device 103 is provided with a treatment water supply pipe 186 connected to the treatment water pump 134 in place of the wash water supply valve 132, 188 are provided so that the treated water can be forcibly injected and supplied toward the distribution space 152. As a result, as compared with the non-point pollution control apparatus 100 of the first embodiment, stronger treated water can be injected and the cleaning effect can be improved.

Next, a non-point pollution control apparatus 105 according to a fourth embodiment of the present invention will be described with reference to Figs. 7 to 9. Fig. The same components as those of the non-point pollution control device 100 of the first embodiment among the components constituting the non-point pollution control device 105 are denoted by the same reference numerals and the description thereof is omitted.

The non-point pollution control device 105 is connected to the treatment water pump 134 in place of the wash water supply valve 132 so that the distribution space wash pipes 190 and 192 are connected to the treatment water pump 134, The cleaning nozzles 194, 196, 198 and 199 are provided so that the treatment water can be uniformly injected and supplied in the entire space of the distribution space 152. The distribution space cleaning pipes 190 and 192 are installed in the upper and lower corners of the distribution space 152 and the distribution space cleaning nozzles 194, 196, 198 and 199 are arranged in a horizontal or vertical direction. In particular, the dispense space wash nozzles 194, 196, 198, 199 are disposed obliquely toward the perforations 122 as shown in FIG. As a result, as compared with the non-point pollution control apparatus 100 of the first embodiment, stronger treated water can be injected and the cleaning effect can be improved.

Next, a non-point pollution control apparatus 107 according to the fifth embodiment of the present invention will be described with reference to FIG. The same components as those of the non-point pollution control device 100 of the first embodiment among the components constituting the non-point pollution control device 107 are denoted by the same reference numerals and the description thereof is omitted.

The non-point pollution control device 107 uses block or bag type filter media units 200, 206, 208 for facilitating the installation of the filter media. Therefore, the operator can complete the filter unit by holding the filter unit 200, 206, 208 with the manhole 144 and arranging the filter unit on the filter unit support plate 128. On the contrary, it is easy to separate and discharge the filter units 200, 206 and 208 for maintenance. The filter units 200, 206, and 208 may be formed, for example, in the form of a filter bag 204 loaded with the filter material 202. The filter media loaded into the filter media units 200, 206 and 208 may be loaded with filter media of different sizes or properties. As a result, it is possible to arrange them so as to have different layered media having a plurality of layer structures.

Next, a non-point pollution control apparatus 109 according to the sixth embodiment of the present invention will be described with reference to FIG. The same components as those of the non-point pollution control apparatus 100 of the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

The non-point pollution control device 109 can use the re-installation bins 210, 214, and 218 to facilitate the installation of the filter unit. That is, the filter material 210 is installed on the filter material support plate 128, the filter material 212 is supplied to the filter material 212, the filter material 214 is installed again, the filter material 216 is supplied, do. In addition, it is possible to install the reinstalling foil 216 and the filter media 218. As a result, it is not only easy to install the filter member, but also it is possible to separate and discharge the filter member by the operator. The filter media 212, 216, and 220 positioned above the filter media units 210, 214, and 218 may be loaded with media having different sizes or properties. As a result, it is possible to arrange them so as to have different layered media having a plurality of layer structures.

By the non-point pollution control apparatuses 100, 101, 103, 105, 107, and 109 of Embodiments 1 to 6 as described above, it is possible to effectively treat non-point pollution. The non-point pollution control apparatuses 100, 101, 103, 105, 107, and 109 according to the first to sixth embodiments can select the features and simultaneously install them in one apparatus.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill 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. It can be understood that

100, 101, 103, 105, 107, 109:
102: settling tank 104,144: manhole
106, 146: Manhole cover 108:
110: Wastewater inlet valve 112:
114: settling tank pump 116: drain pipe
118: Flotation prevention plate 120:
122: penetrating part 124: filtration tank
126: Filter material part 128: Filter material support plate
130, 168: support leg 132: wash water supply valve
134: treated water pump 136: separating wall
138: stationary water supply pipe 140: treated feeding and discharging pipe
142: treated water outlet valve 148: settling space
150: Filtration space 152: Distribution space
154: Storage space 156:
158: first slope 160: second slope
162: Third slope 164: Mixing rope
170: concave portion 180, 186: treated water supply pipe
182, 184: penetrating part cleaning nozzle 188: cleaning water supply nozzle
190,192: Dispensing space wash tubing 194,196,198,199: Dispensing space wash nozzle
200, 206, 208: filter unit 202, 214, 218, 220:
204: Filter pockets 210, 214, 218:

Claims (20)

A sedimentation tank installed with a fresh water inlet; And
And a filtration tank separated by the sedimentation tank and the partition wall and communicated by a penetration formed in a lower portion of the partition wall,
The settling tank is provided with a settling tank pump for discharging sludge and sewage in the settling tank,
The filtration tank,
A separating wall formed on one side so as to define a storage space,
And a partition wall disposed between the partition wall and the partition wall so that a partition space communicating with the penetration portion is located at a lower portion of the partition wall,
Characterized in that a protruding portion or a concave portion for supporting the filter material supporting plate and generating a vortex on a side surface thereof is formed,
And the length of the mixing rope is longer than the distance of the adjacent support legs.
A processing-and-milking outflow disposed on the upper side of the storage space,
A process water pump installed in the storage space for supplying treated water,
A reverse water supply pipe connected to the treatment water pump and backwashing from the upper side of the filter unit,
And a plurality of distribution space washing nozzles are disposed obliquely toward the penetration portion to guide the treated water to the distribution space, and the treatment water pump is connected to the treatment water pump and is provided in the upper and lower corner portions of the distribution space in a direction from the separation wall toward the penetration portion, And a washing water supply means for uniformly injecting and supplying water.
The apparatus according to claim 1, wherein a manhole is provided in the settling tank and the filtration tank.
The apparatus for treating non-point pollution according to claim 1, wherein an inclined portion is disposed on a bottom portion of the settling tank so as to collect sludge and sewage.
The non-point pollution control apparatus according to claim 1, wherein a float prevention plate is provided in the sedimentation tank at a lower side of the penetration section to prevent the inflow of the contaminants into the penetration section.
The non-point pollution control apparatus according to claim 1, wherein the penetration portion is openable and closable.
delete delete delete delete delete delete delete delete delete delete The non-point pollution control apparatus according to claim 1, characterized in that a penetration portion cleaning nozzle connected to a process water supply pipe communicating with the process water pump is disposed at one or more of the deposition space side and the distribution space side of the penetration portion .
The non-point pollution control apparatus according to claim 1, wherein the filter unit is configured by loading a plurality of filter units.
18. The non-point pollution control apparatus according to claim 17, wherein the filter unit is a filter material bag filled with filter material.
2. The non-point pollution control apparatus according to claim 1, wherein the filter unit is constructed by loading a filter medium on a horizontally disposed filter reed tool.
The non-point pollution control apparatus according to claim 17 or claim 19, wherein the filter unit is composed of a plurality of layers, and the filter material of each layer is different in particle size.

Images