KR101635784B1

KR101635784B1 - System for treating a riverbank filtration on situ

Info

Publication number: KR101635784B1
Application number: KR1020150071544A
Authority: KR
Inventors: 이명재; 천정용
Original assignee: 주식회사 지오그린21
Priority date: 2015-05-22
Filing date: 2015-05-22
Publication date: 2016-07-04

Abstract

Disclosed is a system for treating riverbank filtration water on site to reduce an iron or a manganese concentration in acquired underground water. The system for treating riverbank filtration water on site comprises a vertical water collection well, a vertical water collection pipe, and a horizontal injection pipe. The vertical water collection well is installed vertically with respect to the ground surface. A vertical injection pipe is arranged vertically with respect to the ground surface in the vicinity of the vertical water collection well, and injects oxygenated water supplied from the outside. The horizontal injection pipe is vertically connected to the vertical injection pipe with respect to the ground surface, and provides the oxygenated water injected through the vertical injection pipe into the ground. Accordingly, the vertical injection pipe and the U-shaped horizontal injection pipe connected to the vertical injection pipe are arranged in the vicinity of the vertical water collection well to inject the oxygenated water at high injection efficiency to widely form an oxidized zone without increasing a number of injection wells installed to inject the oxygenated water to reduce an iron or a manganese concentration in underground water acquired by a river water collection system.

Description

{SYSTEM FOR TREATING A RIVERBANK FILTRATION ON SITU}

Field of the Invention The present invention relates to a river filtration water field treatment system, and more particularly, to a river water filtration water field treatment system for reducing iron or manganese concentration in groundwater collected.

Generally, tap water is mainly used as a raw water in rivers, rivers, lakes, dams, etc., after physical and chemical treatment in a water purification plant. However, as environmental pollution progresses, water quality of raw water also tends to deteriorate, and there is a lot of investment such as advanced treatment, but people still have low confidence in tap water. In addition, there are places where it is difficult to secure the number of water sources because there are no large reservoirs or rivers that can secure the number of water sources in some local cities because of the increase in tap water consumption due to industrial development and improvement of living standards. And the river filtration water purification plant is on the increase.

The positive number of general riverside filtration water is obtained by providing a pumping water perpendicularly or horizontally to the surface of the ground at a distance from the riverside. The riverside filtered water filtered through the permeable layer existing in the lower part of the riverside (for example, Nakdong river) flows through the pumping water pipe and is collected in the pumping water.

The riverside filtrate collected in this way has a constant water temperature as compared with surface water, nitrification due to microbial action leads to less ammonia nitrogen, less fluctuation of water quality, and even in case of river pollution, The water quality of the raw water is good.

On the other hand, in raw water, iron or manganese is generally contained in a large amount and may be present at a high concentration. Removal of iron or manganese is usually effective by oxidation by chlorine or oxidation by manganese dioxide, and the reaction rate is also fast. However, oxidation by chlorine is likely to produce carcinogenic trihalomethanes or precursors, and oxidation by manganese dioxide may have psychological resistance in terms of increased processing costs and the use of artificial chemicals.

In view of this, Applicants have proposed an aquifer environment surrounding the aquifer itself by using riverside filtration water to prevent or reduce deterioration of the effluent and pump performance by precipitating iron / manganese before the groundwater is introduced into the aquifer, Filed application filed as Patent Application No. 2010-0067457, and a system for treating a riverside filtrate on-site which can reduce the processing cost and processing time required for the treatment of iron / manganese after the filtration water is pumped.

In the case of such a riverside filtration site treatment system, the groundwater introduced through the screen of the amphibious water pipe arranged in the pumice is pumped and oxygen water is released to the ground through the screen of the injection pipe arranged in the pumper disposed around the pumice.

However, since the injection wells are disposed perpendicularly to the surface of the ground, oxygen water is limitedly injected into specific sites in injecting oxygen water, so that it is troublesome to dispose a large number of injection wells in order to increase the injection efficiency of oxygen water.

Korean Registered Patent No. 10-1313136 (Name: On-site treatment system for riverside filtrate and its method) (Registered on September 24, 2013) Korean Patent Laid-Open Publication No. 2014-0112315 entitled " Oxygen Water Injection Device and On-Site Treatment System for Riverbed Filtration Water Including It "

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a method and apparatus for reducing the concentration of iron or manganese in groundwater collected in a riverbed collecting system And to provide a river-side filtered water on-site treatment system for injecting oxygen water.

In order to realize the object of the present invention, a river filtration water field treatment system according to an embodiment includes a vertical collecting pipe, a vertical collecting pipe, a horizontal injection pipe, and at least one horizontal collecting pipe. The vertical collecting is formed perpendicular to the surface of the river near the river, and extends vertically to the inside of the aquifer in the vicinity of the river. The vertical injection piping is disposed in the vicinity of an area spaced apart from the vertical collecting column perpendicularly to the ground surface, and injects oxygen water supplied from the outside. The horizontal injection piping is connected to the vertical injection piping horizontally with respect to the ground surface, and provides oxygen water injected through the vertical injection piping to the ground. The horizontal catchment pipe is disposed radially in the vertical catch, horizontally with respect to the ground surface. Here, the horizontal injection pipe is disposed at a higher position than the horizontal water collection pipe and is bent to inject oxygen water toward the screen of the horizontal water collection pipe. Also, when observing the vertical collection at the surface, the horizontal injection piping has a shape that surrounds the vertical collection.

In one embodiment, the vertical injection piping has an I-shape, and the horizontal injection piping can have a U-shape.

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In one embodiment, the vertical injection piping can be disposed near the end of the horizontal catchment pipe perpendicular to the ground surface.

In one embodiment, the horizontal injection piping and the vertical injection piping may be arranged one-to-one.

In one embodiment, the horizontal injection piping and the vertical injection piping can be arranged one-to-many.

In one embodiment, a plurality of screens may be formed in the lower portion of the vertical collecting to receive groundwater, and the horizontal injection piping may be disposed at a position higher than the positions of the screens.

According to this river filtration water treatment system, a vertical injection pipe and a U-shaped horizontal injection pipe connected to the vertical injection pipe are disposed near the vertical injection pipe to inject oxygen water with high injection efficiency, It is possible to reduce the concentration of iron or manganese in the groundwater collected in the irrigation water collecting system by forming an oxidation zone in a wide range without increasing the number of installed injections.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view schematically illustrating a river filtration water field treatment system according to an embodiment of the present invention; FIG.
FIG. 2 is a cross-sectional view schematically illustrating the river filtration water field treatment system shown in FIG. 1. FIG.
3 is a plan view for schematically explaining a river filtration water field treatment system according to another embodiment of the present invention.
FIG. 4 is a cross-sectional view schematically illustrating the river filtration water field treatment system shown in FIG. 3. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in more detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention in order to clarify the present invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Also, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view schematically illustrating a river filtration water field treatment system according to an embodiment of the present invention; FIG. FIG. 2 is a plan view for schematically explaining a river filtration water field treatment system shown in FIG. 1. FIG.

1 and 2, a system for processing riverside filtrate water according to an embodiment of the present invention includes a vertical collection tower 110, at least one horizontal collection pipe 120, a discharge pipe 130, a vertical injection pipe 140 And a horizontal injection piping 150.

The vertical windshield 110 is installed perpendicular to the ground surface. The vertical windshield 110 may extend vertically into an aquifer in an area adjacent to the stream. Here, an aquifer is a layer in which water is stored in the underground, and reserves sufficient groundwater as the pore develops and permeability becomes better. The vertical collection 110 may be disposed near the stream to collect the riverside filtered water. An intermediate slab having various holes is disposed in an upper region of the vertical dust collector 110. A pump, a sensor, or the like may be disposed in the intermediate slab. Pipes (not shown) may be inserted through holes formed in the intermediate slab.

The horizontal catchment pipe 120 is radially disposed about the periphery of the vertical windshield 110 horizontally with respect to the ground surface or disposed toward the river direction. The groundwater or surface water may be introduced into the vertical collecting unit 110 through the horizontal collecting pipe 120. In this embodiment, four horizontal catchment pipes 120 are disposed.

The discharge pipe 130 is connected to the horizontal collecting pipe 120 disposed in the vertical collecting unit 110 and extending inward through a hole formed in the vertical collecting unit 110. The discharge pipe 130 controls whether to discharge the groundwater flowing through the horizontal catchment pipe 120 to the vertical collecting pipe 110 under the control of a control valve disposed in the intermediate slab. For example, the control valve may control the groundwater to be discharged to the vertical collecting unit 110 through the discharge pipe 130, and the groundwater may flow through the discharging pipe 130 to the vertical collecting unit 110, As shown in Fig.

The vertical injection pipe 140 is disposed near the end of the horizontal water collection pipe 120 perpendicular to the surface of the ground, and injects oxygen water supplied from the outside. The above-mentioned oxygen water can be produced by generating oxygen in the oxygen generator and dissolving the produced oxygen in the ground water through the oxygen dissolver. In this embodiment, two vertical injection piping 142, 144 are disposed for one horizontal injection piping 150.

The horizontal injection piping 150 is connected to the vertical injection piping 140 horizontally with respect to the ground surface and provides oxygen water injected through the vertical injection piping 140 to the ground.

The horizontal injection piping 150 may be bent to inject oxygen water toward the screen of the horizontal catchment pipe 120 when viewed in a plan view. For example, the vertical injection pipe 140 may have an I-shape and the horizontal injection pipe 150 may have a U-shape. The horizontal injection piping 150 is disposed at a position higher than the height of the horizontal injection piping 150. That is, the depth of the horizontal injection pipe 150 for injecting the oxygen water is positioned above the installation depth of the horizontal collection pipe 120 of the radial vertical collecting unit 110.

The vertical injection pipe 140 and the U-shaped horizontal injection pipe 150 connected to the vertical injection pipe 140 are disposed in the vicinity of the vertical injection hole 110 to inject oxygen into the vertical injection pipe 110 at a high injection efficiency. , It is possible to reduce the concentration of iron or manganese in the groundwater taken from the irrigation water collecting system by forming an oxidation zone in a wide range.

In the above, two vertical injection pipes are arranged in the central region of the horizontal injection pipe. That is, the horizontal injection pipe and the vertical injection pipe may be disposed one on top of the other. For example, if two vertical injection piping are arranged, the vertical injection piping can be arranged in each of the three regions of the horizontal injection piping.

On the other hand, one or more vertical injection piping may be arranged in the regions of the horizontal injection piping.

In general, alluvial deposits formed by river sediments have a large infiltration (low permeability due to clay layer or silt layer) of medium (stratum) layer.

However, as disclosed in the present invention, since the vertical injection pipe and the horizontal injection pipe for injecting oxygen water are installed after installing the trench using the construction equipment, the state of the ground layer, for example, whether it is the sand gravel layer as the main aquifer It is easy to install, the injection effect is high, and the excavation cost is low, which is economical.

3 is a plan view for schematically explaining a river filtration water field treatment system according to another embodiment of the present invention. FIG. 4 is a cross-sectional view schematically illustrating the river filtration water field treatment system shown in FIG. 3. FIG.

Referring to FIGS. 3 and 4, a river filtration water field treatment system according to another embodiment of the present invention includes a vertical collecting pipe 210, a vertical injection pipe 240, and a horizontal injection pipe 250.

The vertical collection 210 is installed perpendicular to the ground surface. The vertical collection 210 may extend vertically into the aquifer in the area adjacent to the stream. A plurality of screens are formed in a lower region of the vertical collecting unit 210 to allow groundwater to flow through the screens.

The vertical injection pipe 240 is disposed in the vicinity of the vertical collecting column 210 perpendicularly to the ground surface, and injects oxygen water supplied from the outside.

The horizontal injection piping 250 is connected to the vertical injection piping 240 horizontally with respect to the ground surface and provides oxygen water injected through the vertical injection piping 240 to the ground. And may be bent to inject oxygen water toward the screen of the horizontal catchment pipe 220 when viewed in a plan view. For example, the vertical injection pipe 240 may have an I-shape and the horizontal injection pipe 250 may have a U-shape. The horizontal injection pipe 250 is disposed at a position higher than the height of the screens formed in the vertical collecting unit 210. That is, the depth of the horizontal injection pipe 250 for injecting the oxygenated water is positioned above the depth of the screen formed in the vertical collecting unit 210.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims. You will understand.

110, 210: Vertical collecting 120: Horizontal collecting pipe
130: discharge pipe 140, 240: vertical injection pipe
150, 250: Horizontal injection piping

Claims

Vertical windshields installed perpendicularly to the surface of the river near the river, vertically extending to the inside of the aquifer in the vicinity of the river;
A vertical injection pipe disposed in the vicinity of an area having an I-shape and perpendicular to the ground surface and spaced apart from the vertical collecting part, for injecting oxygen water supplied from the outside;
A horizontal injection piping having a U-shape and connected to the vertical injection piping horizontally with respect to the surface of the ground, for supplying oxygen water injected through the vertical injection piping to the ground; And
But on the surface including said vertical water collection of a plurality of horizontal water collecting pipe arranged radially at the horizontal,
Wherein the vertical injection piping is disposed near the end of the horizontal catchment pipe perpendicularly to the ground surface,
The horizontal injection pipe is disposed at a higher position than the horizontal water collection pipe and bent to inject oxygen water toward the screen of the horizontal water collection pipe,
Wherein the horizontal injection pipe and the vertical injection pipe are arranged one to one,
The horizontal injection pipe and the horizontal water collecting pipe are arranged one to one,
When observing the vertical water collection at the surface, said horizontal inlet pipe has a shape surrounding the vertical water collection,
When observing the horizontal injection piping perpendicularly to the ground surface, the horizontal injection piping is arranged to face the screen of the horizontal catchment piping,
The horizontal injection pipe is arranged so as to surround the screen of the horizontal water collection pipe in an arc shape when the horizontal injection pipe is observed on the ground surface,
Wherein a plurality of screens are formed in a lower portion of the vertical collecting unit to receive groundwater, and the horizontal injection pipe is disposed at a position higher than a position of the screens .

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