KR100590826B1 - river water purification system - Google Patents

Abstract

The present invention relates to a river water purification treatment system is installed in the river to purify the river water flowing into the river, at least one wall formed in the river at a certain height so that the fresh water flowing through the river and the bottom surface of the river At least one block is installed in the river by having at least one block assembled therebetween and having a horizontal portion extending horizontally from the inclined portion to the wall from the inclined portion. A block structure having a tube insertion hole into which a tube can be inserted along a direction, a filler filled to have a gap in the block, and a tubular shape having a through hole on an outer circumferential surface thereof, and one end thereof is formed through the tube insertion hole of the block structure. It enters a certain length inside and the other end has a discharge pipe installed to extend through the wall. . According to such a stream water purification treatment system, it is simply installed in an underwater beam installed for the purpose of existing dimensions, and can clean the river water biologically introduced into the stream by microorganisms and aquatic plants, which is eco-friendly and simple in structure, while improving the purification efficiency. It provides an advantage that can be increased.

Description

River water purification system

1 is a cross-sectional view schematically showing a river water purification treatment system according to an embodiment of the present invention,

FIG. 2 is a perspective view illustrating a rectangular lattice block of FIG. 1;

3 is a perspective view illustrating a triangular lattice block of FIG. 1;

4 is a perspective view showing an assembled state of the block structure applied to FIG.

FIG. 5 is an exploded perspective view illustrating a partial extraction of a discharge pipe and an oxygen supply pipe installed to penetrate a wall at a lower portion of the block structure of FIG. 1;

6 is a view schematically showing a diffusion region of air selectively supplied through an oxygen supply pipe installed in the discharge pipe of FIG. 1,

7 is a cross-sectional view showing a river water purification treatment system according to a second embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

110, 410: wall 120: block structure

130: square grid block 140: triangular grid block

150: discharge pipe 160: oxygen supply pipe

180: Fill 190: Mat

230: Aquatic Plant

The present invention relates to a river water purification treatment system, and more particularly, to a river water purification treatment system installed in a fresh water stream and capable of purifying river water.

Pollutants generated by population development due to industrial development and urbanization are excessively introduced into rivers or rivers, causing rivers to lose their self-cleaning capacity, and contaminate rivers.

In general, livestock wastewater discharged from domestic sewage, factory wastewater, and corporate livestock farms is pretreated in large-scale sewage treatment plants or small-scale unit treatment facilities and discharged to rivers, but the pollution of discharged water discharged to rivers is high due to various factors. The reality is that river water is polluted.

As the source of pollution of the discharged water, the water quality standards for discharged water discharged to the river, for example, the biological oxygen demand, biochemical oxygen retention, total phosphorus, total nitrogen, and the amount of suspended solids are applied differently according to the region. Pollution degree of discharged discharged water is different.

In addition, since small-scale purification facilities perform only the primary treatment process in which nitrogen and phosphorus contained in domestic sewage are omitted, the stream water may be eutrophiced by nitrogen and phosphorus contained in the effluent discharged through the purification treatment. Can be.

In addition, rainwater is discharged to the rivers through rainwater pipelines, and sewage is installed in large-scale sewage treatment plants and small regional village-level sewage treatment plants. If discharged through storm pipes, they may be discharged to streams without undergoing purification.

In addition, when rainfall and rainwater are mixed with rainwater and domestic sewage, and the sewage containing a large amount of soil and contaminants is introduced into the sewage treatment plant with a large amount of soil and contaminants, the purification process is carried out in the sewage treatment plant. Omitted without permission is the situation.

Conventional river purification technology for the purification of river water contaminated by these problems is a method of purifying river water by introducing the river water into a secondary purification facility installed outside the river, and then discharging the river water back to the stream, and purifying the natural environment around the river. There is a method of cultivating plants to remove organic substances by purified plants. In case of secondary purification facilities, it is only possible to secure the land for installing the treatment plant around the river. Therefore, if the land is difficult to secure, the facility is difficult, and the treatment process to remove the large amount of soil and confinement is necessary. It is large in size and has a high maintenance cost due to the management of the contact material filled in the reactor and the sludge treatment.

On the other hand, when aquatic plants are cultivated in river waterways to remove contaminants, microorganisms attached to the surface of the plant can adsorb and decompose the contaminants and process nitrogen and phosphorus as soluble contaminants are absorbed by the roots. In addition, the contaminated river water flows to the area where the water purification plant is grown, and thus, there is an advantage of increasing the purification function of the river through physical precipitation. However, when planting aquatic plants such as reeds in rivers, the roots all go into the mud where no pores are formed, which limits the efficiency of purification.In winter, the growth required for natural purification depends on the types of aquatic plants. If the purification capacity is not reduced and the aquatic purification plants are grown on the side of the river, the river water can flow into the aquatic purification plants only when the precipitation is high, so that the hydraulic treatment efficiency is lowered.

The present invention has been made to improve the above problems, the object of the present invention is to provide a river water purification treatment system that is simple in structure and can increase the purification treatment of river water by water purification plants and microorganisms.

In order to achieve the above object, the river water purification treatment system according to the present invention is installed in a river in the river water purification treatment system to purify the river water introduced into the river, in the river to a certain height so that the fresh water flowing through the river At least one wall formed; At least one or more types of blocks are installed in the river and have at least one horizontal portion with the inclined portion inclined with respect to the bottom surface of the river and a horizontal portion extending horizontally from the inclined portion to the wall. The assembled block includes a block structure in which a tube insertion hole for inserting a tube along an extension direction of the horizontal portion is formed; A filler filled to have voids in the block; It is formed in a tubular shape having a through-hole on the outer circumferential surface one end is entered into the interior through the tube insertion hole of the block structure and the other end is discharge pipe is installed to extend through the wall.

Preferably, the block structure is assembled with square lattice blocks and triangular lattice blocks, wherein the square lattice block is parallel to the first square bottom surface having a plurality of holes and the first square bottom surface. First and second vertical sidewalls formed at a predetermined height vertically from both edges, the first and second vertical sidewalls each having the tube insertion hole facing each other, and the first and second vertical sides opposite the first rectangular bottom surface such that an upper portion has a rectangular frame shape. And a first and second horizontal support bars interconnecting edge portions of the end portions of the sidewalls, wherein the triangular lattice block includes a second square bottom surface having a plurality of holes and a selected portion of the second square bottom surface. A plurality of vertical bulkheads spaced apart from each other in parallel with one side and gradually increasing in height, and an upper end of the vertical bulkheads from the second rectangular bottom surface; It is a first and a second structure having a sloping Chiba interconnecting the seat portion.

In addition, the wall is provided to be spaced apart by a predetermined interval in the upstream direction with respect to the underwater beams installed along the direction orthogonal to the flow direction of the river water.

In addition, the wall is installed along the direction parallel to the flow of the river water is installed to receive the discharge water to be introduced into the stream from the outside of the stream through the discharge pipe.

More preferably, the nozzle is formed spaced apart from a predetermined interval, the oxygen supply pipe is installed to be inserted into the discharge pipe to supply oxygen from the outside; further includes.

In addition, the mat is formed in a mesh shape is installed to be supported on the lattice block of the horizontal portion to enable aquatic purification plants to be supported; is further provided.

More preferably, the sedimentation guide member is installed at a portion where the bottom surface of the river and the inclined portion contact with each other, and formed to be deeper to a certain depth than the bottom surface of the river;

Hereinafter, a river water purification treatment system according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view schematically showing a river water purification treatment system according to an embodiment of the present invention.

Referring to the drawings, the river water purification treatment system 100 includes a wall 110, a block structure 120, a discharge pipe 150, and an oxygen supply pipe 160. Reference numeral 170 is an underwater beam.

The wall 110 is formed in the river at a predetermined height along the direction intersecting with the flow direction of the river water so that the river water flowing through the river can be freshwater.

In the illustrated example, the wall 110 is provided at a position spaced apart by a predetermined distance in the upstream direction with respect to the underwater beam 170.

The wall 110 is preferably formed of concrete.

The water gate 113 is installed between the wall 110 and the underwater beam 170 so that the river water discharged through the discharge pipe 150 temporarily stays and can be selectively discharged through the underwater beam.

The precipitation guide member 115 is provided at a portion where the inclined portion 121 of the block structure 120 and the bottom surface 221 of the river are in contact with each other.

Precipitation guide member 115 is formed to be deeper to a certain depth than the bottom surface 221 of the river is preferably formed of concrete.

In addition, it is preferable to apply the extension length of the corresponding block structure 120 to the extension length in the direction crossing the river water running direction of the precipitation guide member 115.

More preferably, the inclined surface 115a adjacent to the block structure 120 of the precipitation guide member 115 is formed to have an inclination of 50 degrees or more with respect to the bottom surface 221 of the river, and is formed on the bottom surface 221 of the river. It is formed into a structure having a depth of 1.5 meters or more.

The sedimentation guide member 115 allows the sludge with a high specific gravity to be precipitated to increase the collection capacity of the sediment, and when the flow rate of the river decreases during the dry season, the valley of the sedimentation guide member 115 is lost. Allows easy collection of sediment concentrated in the vessel.

The block structure 120 includes a plurality of rectangular lattice blocks 130 and a triangular lattice block 140 assembled from each other to be inclined with respect to the bottom surface 221 of the stream from the inclined portion 121 and the inclined portion 121. It is installed in the river to have a horizontal portion 123 extending horizontally to a predetermined length toward the wall (110).

Blocks 130 and 140 are preferably formed of a material that is environmentally friendly and reproducible while having an appropriate strength, for example, is formed of polyethylene resin.

An example of a rectangular lattice block 130 applied to the block structure 120 is illustrated in FIG. 2.

Referring to FIG. 2, the rectangular lattice block 130 is formed in a structure having an internal space opened through upper and left and right sides thereof.

The rectangular grid block 130 is formed in a structure having a first rectangular bottom surface 131, first and second vertical sidewalls 132 and 134, and first and second horizontal support bars 135 and 136. It is.

The first quadrangular bottom surface 131 is formed in a quadrangular shape and a plurality of holes 131a are formed therethrough. The size of the hole 131a of the first rectangular bottom surface 131 is formed to an appropriate size so as not to penetrate the filler described later, and preferably about 15 mm.

The first and second vertical side walls 132 and 134 are formed at a predetermined height vertically from both side edges of the first rectangular bottom surface 131 which are parallel to each other.

In the central portion of the first and second vertical side walls 132 and 134, the pipe insertion holes 132a and 134a are formed at positions corresponding to the corresponding sizes.

The pipe insertion holes 132a and 134a are used for inserting the discharge pipe 150 or for supporting the mat for supporting the water purification plant.

The first and second horizontal support bars 134 and 135 are coupled to the ends of the first and second vertical sidewalls 132 and 134 so that the upper portion has a rectangular frame shape, and the first and second horizontal support bars 134 and 135 are disposed opposite the first rectangular bottom surface 131. The edges of the ends of the first and second vertical sidewalls 132 and 134 are interconnected.

Preferably, the rectangular grid block 130 is formed to a size within 1200mm in width, 1200mm in length, 1000mm in height.

In addition, the rectangular lattice block 130 may be formed in the region corresponding to the coupling groove (not shown) and the coupling protrusion (not shown) so as to be able to be combined in the horizontal and vertical direction on the matrix.

Alternatively, a plurality of coupling holes (not shown) or coupling grooves may be formed at appropriate positions to be coupled to each other using bolts and nuts made of separate fixing members, for example, plastic materials.

An example of a triangular lattice block 140 applied to the block structure 120 of FIG. 1 is shown in FIG. 3.

Referring to FIG. 3, the triangular lattice block 140 is formed in a structure in which both sides have an outline of a right triangular shape.

The triangular grid block 140 is integrally formed by the second square bottom surface 141, the plurality of vertical bulkheads 142, 143, 144, and the first and second inclined support bars 145, 146. have.

The second rectangular bottom surface 141 is formed in a quadrangular shape and a plurality of holes 141a are formed.

The size of the hole 131a of the first rectangular bottom surface 131 is formed to an appropriate size so as not to penetrate the filler described later, and preferably about 15 mm.

The second square bottom surface 141 is preferably formed to have the same size as the first square bottom surface 131.

The vertical bulkheads 142, 143, and 144 are spaced apart from each other in parallel with one side of the second square bottom surface 141, but are gradually increased in height.

The first and second inclined support bars 145 and 146 are formed to interconnect upper edge portions of the vertical partition walls 142 and 143 from both edge portions of the second rectangular bottom surface 141.

The triangular lattice block 140 may also be formed in a region where the coupling groove (not shown) and the coupling protrusion (not shown) are coupled to the square lattice block 130.

Alternatively, a plurality of coupling holes (not shown) or coupling grooves may be formed at appropriate positions to be coupled to each other using bolts and nuts made of separate fixing members, for example, plastic materials.

An example of assembly of the block structure using the rectangular lattice block 130 and the triangular lattice block 140 is shown in FIG. 4.

Referring to FIG. 4, the block structure 120 is formed in a structure in which one end of the rectangular lattice block 130 is stepwise assembled in a narrow step, and the triangular lattice block 140 is coupled to the stepped portion. The block structure 120 has a structure having the inclined portion 121 and the horizontal portion 123 described above.

The overall height of the block structure 120 is preferably formed to be within 5m.

The lattice blocks 130 and 140 are filled with an appropriate amount of the filler 180 filled with voids. The fill 180 is omitted in FIG. 1 to avoid complexity of the drawings and will be described with reference to FIG. 4.

Filler 180 may be applied to gravel, sand, plastic material. Preferably, the filling material 180 has a porosity of 70% and a specific surface area of 1.0 m 2 or more, and has a proper weight so that the flow rate is small, and the biofilm can be formed and detached continuously while having an appropriate weight. Apply. As an example of such a filler 180, a mixture of steel pebbles and spherical plastic materials that can be collected in nature at a ratio of 6: 4 is used. The outer diameter of the filling 180 is larger than the diameter of the holes 131a and 141a of the bottom surfaces 131 and 141 of the lattice blocks 130 and 140.

Preferably, the space velocity (SV) of filling 180 is maintained at 8 / hr, hydraulic load rate of 20 m 3 / m 2 · hr, backwash hydraulic load rate of 40 m 3 / m 2 · hr, and the inflow of streams is within 30,000m 3 per day. In this case, the amount of purified water is within 2.50㎥ / sec, and the total volume of the block structure 120 may be applied within 17,000㎥ and the aquatic purified plant cultivation area of 8,000㎡.

The mat 190 is coupled to the upper surface of the uppermost rectangular lattice block 130 of the block structure 120 using a coupling member as shown in FIG. 1, or the uppermost or suspended rectangular lattice as shown in FIG. 4. It may be inserted and installed to be supported through the tube insertion holes 132a and 134a of the mold block 130.

The mat 190 may be a mesh structure.

The mat 190 and the fill 180 allow the aquatic purified plant 230 to grow out of flow as shown in FIGS. 1 and 4.

Mat 190 is preferably filled with an appropriate amount of sand and porous filler so that the water portion of the water purification plant 230 can be stably supported.

In addition, the filling 180 filled to a certain height from the first rectangular bottom surface 141 of the rectangular lattice block 130 allows the roots of the aquatic purification plant 230 to breed. In this case, oxygen is delivered to the root of the water purification plant 230 to facilitate decomposition of organic matter and absorption of nutrients, and the internal space of the block 130 provides an ecological habitat of plants and animals.

Examples of the aquatic purifying plant 230 planted to be grown in the filling 180 and the square lattice block 130 of the triangular lattice block 140 of the block structure 120 include reeds, buds, high heat, and irises. Apply perennial plant that can grow even in winter, such as lying down and weeping willow.

The block 130 may increase the growth rate of the aquatic purified plant 230 by filling the plankton in the microorganisms and filling the nutrient-rich mud discharged.

The discharge pipe 150 has one end inserted into the block structure 120 through the pipe insertion holes 132a and 134a of the rectangular grid block 130, and the other end penetrates the wall 110 and the wall 110. It is installed to be exposed to the outside.

As the discharge pipe 150 is enlarged in FIG. 5, a plurality of through holes 151 are formed to allow the river water to flow into the outer circumferential surface thereof.

Discharge pipe 150 is preferably used to form a through-hole 151 within 15mm in the reinforced plastic or galvanized steel pipe to have a proper durability. The diameter of the discharge pipe 150 may be formed to correspond to the tube insertion holes 132a and 134a of the rectangular grid block 130, and the length may be determined in consideration of the length of the block structure.

The discharge pipe is preferably connected to at least one unit pipe having a diameter of 800 mm and a length of less than 10000 mm, the total length is about 300m.

The discharge pipe 150 may be appropriately applied in consideration of the drainage amount, and may be installed at an appropriate position such as the second layer from the bottom or bottom surface 221 of the block structure 120.

The oxygen supply pipe 160 is installed to supply oxygen or a gas containing oxygen, for example, air, above the square grid block 130 through the discharge pipe 150 from the outside.

That is, the oxygen supply pipe 160 is installed to extend from the outside into the discharge pipe 150, and the portion provided in the discharge pipe 150 includes a nozzle 161 installed upward at a predetermined interval.

The oxygen supply pipe 160 is connected to an oxygen supply or air pump (not shown) to forcibly supply air or oxygen to the block structure 120 from the outside.

As described above, when oxygen is supplied through the nozzle 161 of the oxygen supply pipe 160, oxygen supplied through the nozzle 161 is diffused to generate an oxygen supply region and an oxygen non-supply region where oxygen is not supplied.

That is, as shown in FIG. 6, the portion indicated by the dotted line with the upper portion opened around the nozzle 161 is the oxygen supply region 262, and the region between the oxygen supply regions 261 becomes the oxygen non-supply region 262. .

Therefore, the selective oxygen supply structure can provide a space in which aerobic microorganisms and anaerobic microorganisms can actively live.

Hereinafter, the river water purification process by the river water purification system 100 will be described.

When the river water flows in the direction of the underwater beam 170, most of the river water hits the inclined portion 121 of the block structure 120, the material with a high specific gravity is lowered along the inclined portion 121 to settle the guide member 115 Settling in bone). In addition, the stream water decreases the flow rate while colliding with the inclined portion 121 of the block structure 120 to increase the reaction time with the aquatic purification plant 230 and microorganisms described later.

In addition, the river water moved along the flow rate is moved upward along the inclined portion 121 of the block structure 120 and then the lower rectangular grid block from the rectangular grid block 130 on the upper portion of the horizontal portion 123 After passing through the pores and holes 131a of the filler 180 vertically to the 130, and flows into the discharge pipe 150 through the through-hole 151 of the discharge pipe 150, and then to the outside of the wall 110 Discharged. The river water discharged to the outside of the wall 110 moves downstream from the underwater beam 170 when the water level is higher than the underwater beam 170 in the state where the opening and closing port 113a of the water gate 113 is opened and closed.

In this process, the microbial group inhabiting the surface of the water purification plant 230 planted in the block structure 120 adsorbs and decomposes pollutants of the river water, and the roots of the aquatic purification plant 230 adsorb soluble substances to the river water. Nitrogen and phosphorus contained are absorbed to reduce the soluble material.

In addition, when oxygen is supplied through the nozzle 161 of the oxygen supply pipe 160, the oxygen supply region 261 and the oxygen ratio supply region 262 are formed as described above with reference to FIG. 6. Growth of aerobic microorganisms is promoted in the region 261 supplied, and growth of anaerobic microorganism groups is promoted in regions where oxygen is not supplied. Therefore, as the pollutants pass through the oxygen supply zone 261 mainly in which the aerobic microbial population lives, organic decomposition and phosphorus ingestion occur according to the vigorous growth of the aerobic microbial population, and the oxygen non-supply zone mainly inhabited by the anaerobic microbial population (262). ), Anaerobic microorganisms undergo active denitrification, remove nitrogen, release large amounts of phosphorus and decompose organic matter. In addition, while anaerobic and aerobic microorganisms repeat the formation and desorption of the biofilm through the ingrowth step, while maintaining a stable purification cycle even under rapid flow fluctuations, the contaminants are removed and the final treated water is discharged through the discharge pipe 150.

On the other hand, in the case of large rivers that can not install the above-described purification treatment system adjacent to the underwater beam 170, the block structure 120 described above may be installed on the side of the river.

As an example of such a structure, an example in which the block structure 120 of FIG. 1 is applied is illustrated in FIG. 7. Elements having the same function as in the above-described drawings are denoted by the same reference numerals.

Referring to FIG. 7, the river water purification treatment system 400 is provided with a wall 410 spaced apart from the side bank 470 of the river, and a block structure 120 is installed in the stream adjacent to the wall 410.

In order to avoid the complexity of the drawing, FIG. 9 does not show the filler filled in the block 120.

A collecting chamber 450 is formed between the wall 410 and the side bank 470 so that sewage and rainwater can be combined and collected.

In addition, a discharge passage 460 is formed between the collection chamber 450 and the discharge pipe 150 to allow the discharge water collected in the collection chapter 450 to flow into the discharge pipe 150.

According to such a stream water purification treatment system 400, the horizontal part 123 after the sewage and rainwater flows into the block structure 120 through the discharge pipe 150 as opposed to the discharge path of the river water described with reference to FIG. It is discharged to the upper part of the stream, and in this process is purified by contact with the microbial and aquatic purification plant 230, and then joins the main stream of the river.

According to the river water purification treatment system according to the present invention as described so far, it can be simply installed in the underwater beam installed for the purpose of existing dimensions to purify the river water biologically introduced into the river by microorganisms, water purification plants It is eco-friendly and its structure is simple, but it provides the advantage of increasing the purification efficiency.

Claims (7)

delete In the river water purification treatment system is installed in the river to purify the river water flowing into the river, At least one wall formed in the river at a predetermined height so as to receive fresh water flowing through the river; At least one or more types of blocks are installed in the river and have at least one horizontal portion with the inclined portion inclined with respect to the bottom surface of the river and a horizontal portion extending horizontally from the inclined portion to the wall. The assembled block includes a block structure in which a tube insertion hole for inserting a tube along an extension direction of the horizontal portion is formed; A filler filled to have voids in the block; And a discharge pipe formed in a tubular shape having a through hole on an outer circumferential surface thereof, and having one end penetrating into the inside through the pipe insertion hole of the block structure and the other end extending through the wall. The block structure Square lattice blocks, triangular lattice blocks, The rectangular lattice block may include a first rectangular bottom surface having a plurality of holes and a first height formed vertically from both side edges of the first rectangular bottom surface perpendicularly to each other, and having the tube insertion holes facing each other. A second vertical sidewall and first and second horizontal support bars interconnecting corner portions of the ends of the first and second vertical sidewalls opposite the first rectangular bottom surface such that an upper portion has a rectangular frame shape; , The triangular lattice block A second square bottom surface having a plurality of holes formed therein, a plurality of vertical bulkheads formed to be gradually spaced apart from each other in parallel with a selected one side of the second square bottom surface, and the vertical bulkhead from the second rectangular bottom surface; A stream water purification treatment system, characterized in that it has a structure having a first and second inclined support bar interconnecting the upper edge portion of the field. The river water purification treatment system according to claim 2, wherein the wall is installed at a predetermined interval spaced upstream from an underwater beam installed along a direction orthogonal to the flow direction of the river water. The river water purification treatment system according to claim 2, wherein the wall is installed along a direction parallel to the flow of the river water and is installed to receive the discharge water to be introduced into the stream from the outside of the river through the discharge pipe. . The stream water purification treatment system according to claim 2, further comprising an oxygen supply pipe which is formed at a predetermined interval and nozzles are inserted into the discharge pipe so as to supply oxygen from the outside. The river water purification treatment system according to claim 2, further comprising a mat formed in a mesh shape and installed to be supported by the lattice block in the horizontal portion to support aquatic purification plants. The river water purification according to claim 2, further comprising a sedimentation guide member installed at a portion where the bottom surface of the river and the inclined portion contact each other, and formed to be deeper at a predetermined depth than the bottom surface of the river. Processing system.

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