KR101228406B1 - Subsurface water purify manage eouipment - Google Patents

Abstract

The present invention relates to a groundwater treatment apparatus for removing harmful substances such as iron and manganese contained in the pumped groundwater.
In the groundwater treatment apparatus of the present invention, the groundwater to be supplied is passed through and the aberration installation space is not formed in the upper portion, and the groundwater is provided in the lower portion of the aberration installation space while passing through the groundwater to form a fixed amount of stagnant space. Process space forming body; Located in the aberration installation space, the aberration to be rotated while hitting the ground water supplied; A chemical supply means for supplying a chemical for removing harmful substances contained in groundwater into the treatment space forming body and supplying the chemical through an orifice so as to correspond to the amount of groundwater supplied; A stirring screw positioned in the stirring space and rotating to receive the rotational force of the aberration to stir the groundwater and the supplied chemical in the stirring space; A foreign substance separating body having a filter for removing foreign substances contained in the ground water and having a gradient plate needle battery composed of a plurality of inclined plates so that foreign substances filtered by the filter are settled to the lower portion through the ground water passing through the stirring space; It is configured to include.
Therefore, the effect of removing the harmful substances such as iron and manganese contained in the groundwater is excellent, there is a feature that can be used in the area difficult to supply power.

Description

Groundwater Treatment System {SUBSURFACE WATER PURIFY MANAGE EOUIPMENT}

The present invention relates to a groundwater treatment apparatus for removing components such as iron and manganese contained in pumped groundwater.

Households that use tap water as drinking water have been steadily increasing, but small villages in rural areas still use ground water as a drinking water source.

However, in rural and rural areas where water treatment facilities are not available due to the preferential supply of centralized water supply system, such as tap water supply system, large groundwater storage tanks are installed in large villages with large groundwater storage tanks installed. By storing them in storage tanks, groundwater can be supplied from each household in the village.

In addition, in order to disinfect and disinfect the groundwater, there is a groundwater disinfection device for injecting disinfectant such as hypochlorous acid water into the pumped groundwater.

However, in the conventional groundwater disinfection device, simply disinfect the groundwater by supplying the disinfectant solution to the pumped groundwater, so that the disinfectant solution is not evenly distributed in the groundwater. The phenomenon frequently occurred.

In addition, only the disinfectant solution was supplied, not oxygen.

On the other hand, the pumped groundwater often contains a considerable amount of iron, manganese, radon, etc., but also contains more than the allowable value.

Iron and manganese in the groundwater are precipitated as light brown and black hydroxides by contact oxidation with air over time.

Recently, as the share of heating costs among the total production costs is increasing in facility cultivation farms, large-scale water film cultivation complexes that use groundwater as heating water are increasing. It was the situation promoting the aging of the facility.

In addition, even when used as industrial water and drinking water, various problems are caused by iron manganese in groundwater, so the treatment of iron and manganese contained in groundwater is a very important problem.

Iron causes taste and smell in water and has a color. It is also known as a causative agent of tube closure and antagonism due to the incubation of iron bacteria in drainage networks.

Manganese has a dark brown color in water, has a bitter taste and is known as a causative agent of indwelling water by bacteria, and when reacted with chlorine, sodium permanganate is produced, causing 300 times the color of manganese.

Dissolved iron is not classified as a health hazard, but it affects the taste, color and turbidity of the water, as well as clogging deposits, degrading and corroding wells and pumps.

Oxidation of divalent iron also acidifies the soil and adversely affects the growth of crops.

In order to treat dissolved iron in groundwater, most groundwater is pumped and then precipitated through aeration and then filtered or adsorbed / filtered using sand.

Moreover, activated carbon, a chemical oxidation method, the method of using an ion exchange resin, etc. are utilized.

In Europe, a series of cycles of pumping oxygen-rich water into the aquifer and then pumping it back to reduce the dissolved concentration is used.

Moreover, the method of using ozone for oxidizing iron and manganese which coexists in a complex, colloidal form, or ammonia etc. is also devised.

However, the conventional methods for treating iron and manganese contained in the groundwater have not been effective, and there is a problem that cannot be used in an area where power supply is difficult.

Radon is a colorless, odorless and tasteless inert gas that is one of the natural decay products of uranium (U-238).

In addition, one of the radioisotopes having a half-life of about 3.8 days is known to be harmful to the human body that emits alpha particles during radioactive decay.

Radon is a carcinogen known to cause lung cancer when it enters the human body through the respiratory tract, and gastric cancer when it enters through the digestive organs.

Therefore, when radon-containing groundwater is used as drinking water, there is a problem that gas cancer is more likely to occur, and when used as living water, there is a problem that lung cancer is increased due to secondary pollution of indoor air.

In particular, the risk of radon to humans is known to be the largest cause of lung cancer caused by inhalation of gaseous radon, and according to U.S. EPA data, it is the most important cause of lung cancer after smoking.

The main national regulatory trends for radon are 4,000 pCi / L (guideline) in the United States, 8,100 pCi / L (in drinking water) in Finland and 13,500 pCi / L (guideline) in Norway.

Radon measurements of published groundwater in Korea show that about 10% exceed US guidelines, and groundwater in some areas contains levels of radon that are not suitable for use as drinking water.

In other words, Korea has been conducting a survey on the presence of natural radioactive materials in groundwater under the supervision of the Ministry of Environment since 1998. According to the 2009 survey results, groundwater, including 474 village waterworks, which are expected to have a high content of natural radioactive materials due to their geological characteristics, were investigated. As a result, Radon has confirmed that 106 sites exceed the US drinking water proposals, and plans to strengthen its management. (Press release on the Ministry of Environment, May 14, 2010)

In addition, the Ministry of Environment confirmed the effects of aeration and activated carbon and confirmed the possibility of abatement management as a result of pilot operation of radon abatement facilities for high radon-containing village waterworks (15,000 pCi / L or more). Based on Ministry of Environment press release)

For this reason, a radon reduction device such as Korean Patent Application No. 10-2009-0068476 has been devised by the inventor of the present application.

However, the above technique was not equipped with the means for disinfecting groundwater.

In addition, there is a problem that the reduction effect of radon contained in the groundwater does not meet the expectations, and there is a disadvantage that does not secure sufficient power to reduce the radon of groundwater.

The present invention is to solve the above problems, and more particularly, to provide a groundwater treatment device that is excellent in removing harmful substances such as iron and manganese contained in groundwater, and can be used even in areas where power supply is difficult. There is this.

In addition, there is a purpose to obtain sufficient power for groundwater treatment in obtaining power through the flow force of groundwater.

In addition, the ground water disinfection means is provided, but the disinfectant solution supplied is to be distributed evenly in the pumped ground water to achieve an excellent sterilization, disinfection effect.

In the present invention, the chemicals are supplied to the groundwater to be supplied, so that the appropriate amount is supplied by the orifice corresponding to the amount of groundwater to be supplied, and provided with the aberration rotated when the groundwater is hit, the stirring space by the power generated during the rotation of the aberration The ground water supplied by the stirring screw inside and the medicine are evenly mixed, and the ground water mixed with the chemical (iron, manganese oxidized precipitate formed during the treatment of manganese and manganese, ground water mixed with sediment) is passed through the filter, The filter is provided with an inclined plate needle battery at the bottom of the filter so that the filtered foreign material sinks smoothly to the bottom and separated.

Through this, the effect of removing harmful substances such as iron and manganese contained in the groundwater is excellent, and the groundwater treatment device can be used even in areas where power supply is difficult.

In addition, in implementing aberrations in which groundwater collides, left, right, front, and back are blocked, and the groundwater collecting space is formed in the form of a plurality of groundwater collection spaces formed on the outer circumferential surface so that the falling water is collected and poured repeatedly. Get power.

In addition, the chemicals for removal of harmful substances include a disinfectant solution so that the disinfectant solution supplied is evenly distributed in the pumped groundwater, thereby obtaining excellent sterilization and disinfection effects.

In the groundwater treatment apparatus of the present invention, the groundwater to be supplied before the groundwater is introduced into the groundwater storage tank, and forms an aberration installation space in which the groundwater is not filled in the upper portion, and the groundwater supplied in the lower portion of the aberration installation space is stored in the groundwater. It has a process space formation body which forms the stirring space which is hold | maintained by a certain amount while passing via a tank.

In addition, it is located in the aberration installation space, and has aberration that is rotated to hit the ground water supplied.

In addition, there is provided a chemical supply means for supplying a chemical for removing harmful substances contained in the groundwater to the interior of the treatment space forming body to be supplied in correspondence with the amount of groundwater supplied.

In addition, it is located in the stirring space and has a stirring screw that rotates by receiving the rotational force of the aberration to stir the groundwater and the supplied chemical in the stirring space.

In addition, the foreign matter separation having an inclined plate needle battery made of a plurality of inclined plate to pass through the ground water through the stirring space and has a filter for removing the foreign matter contained in the groundwater, the foreign matter filtered by the filter is settled to the bottom It is configured to include a body.

The groundwater treatment apparatus of the present invention supplies chemicals to the groundwater to be supplied, but is supplied by the orifice so as to be supplied in an appropriate amount corresponding to the amount supplied, and the groundwater supplied has an aberration that is rotated when it hits, and is generated when the aberration rotates. The stirring screw in the stirring space is driven by the power to mix the groundwater and the chemicals evenly supplied. The groundwater mixed with the chemicals is filtered through the filter, and the filtered foreign matters sinks smoothly to the lower part. An oblique plate needle battery is provided at the bottom of the filter.

Therefore, the effect of removing the harmful substances such as iron and manganese contained in the groundwater is excellent, there is a feature that can be used in the area difficult to supply power.

If a plurality of groundwater collection spaces are formed on the outer circumferential surface of the aberration, which is a component of the present invention, the left, right, front, and back are blocked so that the falling water is formed to repeat collecting and pouring groundwater through the flow force of groundwater. There is a characteristic that can obtain enough power for processing.

In addition, when the chemical supplied for the removal of harmful substances includes a disinfectant solution, the disinfectant solution supplied is evenly distributed in the pumped groundwater, which is characterized by obtaining excellent sterilization and disinfection effects.

In addition, groundwater is scattered when it hits aberrations, so if radon is included in groundwater, radon is also removed.

In addition, the chemical supply means has a chemical supply amount control valve installed to adjust the supply amount of disinfectant solution, and an appropriate amount when the aeration means for aeration of air in the groundwater of the stirring space has an air supply amount control valve installed to control the supply amount of air There is a feature that can automatically supply medicine and air.

In addition, an overflow pipe is connected to the part spaced from the bottom of the stirring space so that the ground water flows into the ground water storage tank when the amount of ground water is filled in the stirring space and flows into the ground water storage tank. When the inner diameter cross-sectional area of the drain pipe is smaller than the inner diameter cross-sectional area of the ground water supply pipe and the overflow pipe, the supplying chemicals and ground water are not only sufficiently mixed, but also the ground water can not be stagnated for a long time in the agitating space to be contaminated. It can prevent, and there is a feature that can prevent the freeze.

1 is a schematic view for explaining the groundwater treatment apparatus of the present invention
2 is a schematic diagram showing the form of aberration which is a component of the present invention;
A: perspective view of aberration with wings only
B: perspective view of aberration with groundwater collection space
C: cross section of aberration with groundwater collection space
Figure 3 is a schematic diagram for explaining that the groundwater flows along the set path by the stirring screw and the partition
Figure 4 is a schematic cross-sectional view for explaining the foreign matter separation body that is a component of the present invention
A: cross section
B: forward sectional view
Figure 5 is a schematic diagram for explaining the enclosure of the mesh network form that is a component of the filter

Hereinafter, the technical idea of the present invention will be described more specifically with reference to the accompanying drawings.

It is to be understood, however, that the appended drawings illustrate only typical embodiments of the present invention and are not to be considered as limiting the scope of the invention.

The present invention relates to a groundwater treatment apparatus capable of removing various harmful substances contained in groundwater, and more particularly, has an effect of removing harmful substances such as iron and manganese contained in groundwater, and is difficult to supply power. The aim is to provide groundwater treatment equipment that can also be used at.

In the present invention, in order to be a groundwater treatment apparatus that can be used even in a region where power supply is difficult, power is generated by the aberration 30 while the groundwater collides with the aberration 30 as in the prior application technology proposed by the inventor of the present application. This power can be used to treat groundwater.

Therefore, the groundwater treatment apparatus of the present invention has a treatment space forming body 10 which forms an aberration installation space 13 through which groundwater supplied through the groundwater supply pipe 2 and groundwater is not filled in the upper portion. .

In addition, it is located in the aberration installation space 13, and has aberration 30 that is rotated to hit and fall while the ground water supplied.

In addition, it has a chemical supply means 40 for supplying a chemical for removing harmful substances contained in the groundwater into the interior of the processing space forming body (10).

Since the processing space forming body 10 and the aberration 30 as described above are already known through the Korean Patent Application No. 10-2009-0068476, and the like, a detailed description of the general structure of this part is omitted.

With such a configuration alone, the effect of removing harmful substances such as iron and manganese contained in the groundwater cannot be significantly improved than in the prior art.

For this reason, in the present invention, the drug supply means 40 is supplied through the orifice 44 so as to correspond to the amount of ground water supplied in supplying the drug.

In addition, the treatment space forming body 10 is to form a stirring space 11 is fixed in the lower portion of the aberration installation space 13 while passing through the groundwater supplied into the groundwater storage tank (1).

In addition, it is located in the stirring space 11 and is rotated by receiving the rotational force of the aberration 30 to be provided with a stirring screw 20 to stir the groundwater and the supplied chemical in the stirring space (11).

In addition, the ground water via the stirring space (11) is to pass through and the foreign matter separation body 110 having a filter 111 for removing the foreign matter contained in the ground water.

The orifice technique in the above description is already well known.
That is, the drug supply means 40 is supplied to the orifice 44 for supplying a chemical for removing the harmful substances contained in the groundwater into the interior of the treatment space forming body 10, but then widen again after the cross-sectional area supplied with the groundwater is narrowed. The chemical is supplied by the flow force of the groundwater supplied by the supply, and the supply of the chemical increases when the supply of the groundwater increases, and the supply of the chemical decreases when the supply of the groundwater decreases.
However, not only the second liquid is supplied but also the supply amount of the first liquid is increased by the flow force of the first liquid which is supplied by supplying another second liquid to the orifice which makes the cross section of the first liquid supplied narrow and then widens again. When the supply amount of the second liquid is increased, and the supply amount of the first liquid to be supplied decreases, the technique of supplying the supply amount of the second liquid to be reduced is a known technique.
Therefore, more detailed description of this part is omitted.

According to the configuration as described above, the supplied chemical and ground water is mixed evenly in the stirring space 11 to generate an excellent treatment effect, the foreign matter contained in the ground water by the filter 111 is also removed, the treatment of harmful substances in ground water Has very excellent features.

In particular, the drug supply means 40 may allow the drug to be supplied to the groundwater before falling to the aberration 30. In this case, the first mixing of the drug and the groundwater is made while the groundwater and the chemical are scattered due to the aberration 10. And, since the second mixing process is mixed again in the stirring space 11, the effect is more excellent.

In addition, the inclined plate needle battery 112 made of a plurality of inclined plate (112a) can be provided in the foreign body separating body 110 so that the foreign matter filtered by the filter 111 is smoothly precipitated to the bottom, in this case the separation effect of the foreign matter Becomes even better.

As described above, the chemical supply means 40 is configured to supply chemicals to the groundwater before falling to the aberration, and the foreign substance separating body 110 has a structure having an oblique plate needle battery 112 to oxidize and precipitate iron or manganese. Very effective.

That is, when the chemical supplied through the chemical supply means is an oxidizing agent or a flocculant for oxidizing or precipitating iron or manganese, the chemical and groundwater collide with the aberration 30 and react with the primary mixture.

In addition, the secondary reaction of oxidation and aggregation is performed in the stirring space 11, and the foreign matters, which are oxidized and aggregated, are separated and removed by the filter 111.

At this time, the secondary reaction in the stirring space 11 is preferably maintained for about 5 minutes to ensure a sufficient reaction.

In the present invention, the aeration means 50 for aeration of air in the groundwater of the stirring space 11 is further provided with a more effective treatment of harmful substances in the groundwater.

That is, when the air is aerated in the stirring space 11, the oxidation reaction can be made more smoothly.

Moreover, when the chemical | medical agent supplied contains disinfecting liquids, such as hypochlorous acid water, the effect of further disinfecting is also acquired.

The aeration means 50 as described above may be implemented in various forms.

However, in consideration of the object of the present invention, it is preferable to implement the form so that external air is aerated in the groundwater of the stirring space 11 by the orifice 52 when the groundwater is supplied.

The structure for sucking and supplying air through the orifice is the same as for sucking and supplying a liquid such as a chemical through the orifice.

As another form, the external air may be aerated in the groundwater of the stirring space 11 by the power generated when the aberration 30 is rotated.

Specifically, electrical energy is produced when the aberration 30 is rotated, and the oxygen supply pump may be driven by the electrical energy (not shown).

In addition, during the rotation of the aberration, the fan is rotated and the air is sucked in accordance with the rotation of the fan may be implemented to be supplied to the ground water of the stirring space (11).

The filter 111, which is a component of the present invention, may be implemented in various forms.

However, by implementing the form having a thick sand layer (111a), a thin sand layer (111b), a carbon powder layer (111c) it can be economical and excellent separation and removal of foreign matter.

Specifically, the coarse sand layer 111a is a layer composed of sand having a relatively coarse grain than the grains of sand forming the fine sand layer 111b.

In addition, the thin sand layer 111b is a layer made of sand having a smaller particle size than the sand grains constituting the coarse sand layer 11a and the groundwater passing through the thick sand layer 111a.

The carbon powder layer 111c is made of carbon powder and is a layer through which groundwater via the thin sand layer 111b passes.

As described above, the structure having the coarse sand layer 111a, the thin sand layer 111b, and the carbon powder layer 111c is very suitable for a structure in which iron and manganese contained in groundwater are oxidized and aggregated to be treated.

The coarse sand layer 111a, the thin sand layer 111b, and the carbon powder layer 111c are preferably separated as shown in FIG. 4.

In addition, it is preferable that the above-described inclined plate needle battery 112 be located under each of the separated thick sand layer 111a, the thin sand layer 111b, and the carbon powder layer 111c, in consideration of the separation and removal of foreign substances. Do.

The coarse sand layer 111a, the fine sand layer 111b, and the carbon powder layer 111c as described above are filled with coarse sand, fine sand, and carbon powder, respectively, in the mesh 111-like enclosure. Coarse sand, fine sand, and carbon powder filled inside can be implemented to enable the replacement.

To this end, the enclosure 111d forms a content filling space 111e through a wall and a bottom surface of a mesh net shape, and selectively opens the content filling space 111e, while the cover 111f has a mesh shape. It is implemented in the form having

In the present invention, when a large amount of foreign matter is caught in the filter 111, when the function of the filter 111 is deteriorated, the back washing means 120 is provided so that the function of the filter 111 is restored. Can be.

The backwashing means 120 may be implemented in the form of washing the filter 111 by spraying the backwash water in a direction opposite to the direction through which the groundwater supplied is passed through the filter 111 to remove foreign substances. It is preferable when considering.

In the present invention, the radon contained in the groundwater can be separated when the groundwater hits the aberration 30, so that the separated radon is discharged to the outside in the treatment space forming body 10 in the ventilation fan 100 ) Can be implemented in a structure that is further provided.

The aberration 30, which is a component of the present invention, can be implemented in various forms as shown in FIG.

However, it is preferable to implement so as to obtain sufficient power (energy) for driving the stirring screw 20 and driving the ventilation fan 100 for reducing radon.

To this end, left, right, before and after is blocked, it is preferable to implement in the form as shown in B and C of Figure 2 formed in the outer circumferential surface a plurality of ground water collecting space 31 is repeated to collect and pour falling water. .

In other words, when the falling water is collected and the collected water is poured by the rotation of the aberration 30, it is to generate a force for strongly rotating the aberration 300.

The rear surface forming the groundwater collecting space 31 as described above is preferably formed inclined 32 so that the area of the groundwater collecting space 31 narrows toward the lower end of the groundwater collecting space 31.

This is to allow the smooth rotation of the aberration 20 by having the force to collect only the groundwater collected forward.

In the present invention, the rotational force of the water wheel 30 is transferred to the stirring screw 20 or the ventilation fan 100 by using various power transmission mechanisms such as a belt, a gear, and a chain.

In addition, even when the ventilation fan 100 receives the rotational force of the aberration 30 and the ventilation fan 100 is rotated, it can be implemented by using various power transmission mechanisms such as belts, gears, chains, and the like.

Drug supply means 40 of the present invention is preferably to be automatically supplied when the ground water supply.

To this end, it is preferable to install a chemical supply amount control valve 41 to adjust the supply amount of the chemical.

The chemical supply amount control valve 41 may be installed in the chemical supply pipe 42.

In the case of having the chemical supply control valve 41 as described above, the supply amount of the chemical to supply the appropriate amount of the medicine (chemical for treatment) in consideration of the amount of groundwater supplied and the amount of iron, manganese, bacteria, etc. contained in the groundwater Can be adjusted relatively accurately.

The aeration means 50, which is a component of the present invention, also allows the air to automatically flow into the groundwater supply pipe 2 by the orifice 52, and controls the air supply amount control valve 51 installed so that the air supply amount can be adjusted relatively accurately. It can be implemented in the form having.

That is, it can be implemented in the same manner as the drug supply means 40 of the above-described description having the orifice 44.

The orifice or the chemical supply amount control valve 41 and the air supply amount control valve 51 are already well known and applied to various industrial fields, and thus a detailed description thereof will be omitted.

The chemical supply amount control valve 41 or the air supply amount control valve 51 may be implemented to check the supply amount through the flow rate gauge.

In the present invention, it is preferable that the ground water introduced into the stirring space 11 is sufficiently stirred with the chemicals in the stirring space 11 and then supplied to the filter 111.

To this end, when the amount of groundwater set in the stirring space 11 is filled, there is a method to allow the groundwater to flow into the groundwater storage tank 1.

That is, by connecting the overflow pipe 60 to the stirring space 11 as shown in the accompanying drawings, but by connecting the overflow pipe 60 to the portion spaced from the bottom of the stirring space 11 to the overflow pipe 60 Due to the overflowing groundwater filled in the stirring space 11 is to flow into the groundwater storage tank (1).

By the way, if there is no separate means in this structure, the groundwater is stagnated in the lower portion of the overflow pipe 60 in the stirring space (11).

The phenomenon of groundwater stagnation in the stirring space 11 may lead to contamination of the groundwater and causes problems in freezing in winter.

Therefore, a means for preventing this is required.

For this reason, by connecting the drain pipe 70 to the bottom of the stirring space 11, the ground water that cannot be discharged to the overflow pipe 60 may be gradually discharged to the ground water storage tank 1 through the drain pipe 70.

That is, even if the supply of groundwater is stopped and groundwater is stagnated in the lower portion of the overflow pipe 60, the stagnant groundwater is gradually drained through the drainage pipe 70, resulting in groundwater that is stagnant for a long time in the stirring space 11. Do not do it.

However, when groundwater is supplied through the groundwater supply pipe (2), the groundwater should be overflowed while stagnating in the stirring space (11), so that the inner diameter cross-sectional area of the drain pipe (70) connected to the bottom of the stirring space (11) is The ground water supply pipe 2 and the overflow pipe 60 should be implemented to be smaller than the inner diameter cross-sectional area.

Of course, it may be implemented in the form having a drainage control valve 80 that can adjust the flow rate of the fluid through the drainage pipe (70).

That is, regardless of the diameter of the drain pipe 70 to adjust the amount of drainage through the drain pipe.

In addition, it is possible to prevent the drainage through the drain pipe 7 and to control the drainage so that drainage can be achieved.

When the partition 12 is installed in the stirring space 11 to be discharged from the stirring space 11 after the ground water flowing into the stirring space 11 of the present invention flows along the set path, the medicine and the ground water may be more sufficiently stirred. Can be.

That is, the groundwater introduced into the stirring space 11 is to be sufficiently agitated and discharged.

In this configuration, the stirring screw 20 is preferably implemented in a form that can push the groundwater in the flow direction of the groundwater so that the groundwater in the stirring space 11 can flow along the set path.

In the accompanying drawings, the groundwater introduced into the stirring space 11 flows to the right through the space formed at the bottom of the partition 12 and then flows out to the groundwater storage tank through the overflow pipe 60. 3)

In the present invention, when the groundwater via the filter 111 is structured to be filled in the groundwater storage tank (1), the groundwater supply through the groundwater supply pipe (2) according to the flow rate filled in the groundwater storage tank (1) This can be implemented in the form having a flow rate control device 90 to automatically turn on (on), off (off).

The flow control device 90 as described above can be implemented in a buoyancy method, such as used in the toilet of the toilet.

In the present invention, the drug can be made to contain a chlorine-based disinfectant such as hypochlorous acid water, in this case, the part in contact with the drug may be rapidly oxidized.

In order to prevent this, the components in contact with the chemicals of the components of the present invention may be embodied in a material having excellent corrosion resistance, such as Teflon, or coated with Teflon having excellent corrosion resistance.

Materials that are difficult to process with metal, such as orifices, are implemented with Teflon material, and if the whole is implemented with Teflon, it is desirable to implement a part that requires a high cost such as Teflon coated form.

Reference numeral 43 is a chemical storage tank.

1. Groundwater storage tank 2. Groundwater supply piping
10. Treatment space forming body 11. Stirring space
12. Partition 13. Aberration installation space
20. Stirring screw 30. Aberration
31. Groundwater collection space 32. Slope
40. Chemical supply means 41. Chemical supply control valve
42. Chemical supply piping 43. Chemical storage tank
44. Orifice 50. Aeration means
51. Air supply control valve 52. Orifice
60. Overflow pipe 70. Drain pipe
80. Discharge valve 90. Flow control device
100. Ventilation fan 110. Foreign body separation body
111. Filter 111a. Coarse sand
111b. Fine sand layer 111c. Carbon powder layer
111d. Enclosure 111e. Filling space
111f. Cover 112. Inclined Plate Needle Battery
112a. Inclined plate 120. Backwashing means

Claims (11)

In groundwater treatment apparatus,
The aberration installation space 13 is formed through the ground water to be supplied and the ground water is not filled in the upper portion, and a stirring space 11 is formed in the lower portion of the aberration installation space 13 through which the ground water supplied is stagnant. A processing space forming body 10;
Located in the aberration installation space 13, the aberration 30 is rotated by hitting the ground water to be supplied;
The flow force of groundwater supplied by supplying a chemical for removing harmful substances contained in groundwater to the interior of the processing space forming body 10, and then supplying to the orifice 44 which is widened again after the cross-sectional area of the groundwater is narrowed again. Drug supply means for supplying the drug is supplied to the supply of the drug is also increased if the supply amount of the ground water is increased and the supply of the ground water is reduced to reduce the supply of the drug to the supply;
A stirring screw 20 located in the stirring space 11 and rotating to receive the rotational force of the aberration 30 to stir the groundwater and the supplied chemical in the stirring space 11;
It is to pass through the ground water via the stirring space 11 and has a filter 111 for removing the foreign matter contained in the groundwater, a plurality of inclined plate so that the foreign matter filtered by the filter 111 is precipitated to the bottom ( And a foreign material separating body (110) having an oblique plate needle battery (112) formed of 112a).
The method of claim 1,
The drug is to include an oxidizing agent or flocculant to oxidize or precipitate iron or manganese contained in the groundwater,
The drug supply means 40 is characterized in that for supplying a chemical to the groundwater in the state before hitting the aberration 30, groundwater treatment apparatus.
The method of claim 2,
The aeration means 50 is further provided for aeration of air in the groundwater of the stirring space 11, the aeration means 50 is ground water in the stirring space 11 by the orifice 52 when supplying ground water Aeration system or groundwater treatment device, characterized in that the air is aerated in the groundwater of the stirring space (11) by the power generated during the rotation of the aberration (30).
The method of claim 1,
The filter 111 is a coarse sand layer 111a made of relatively coarse sand;
A fine sand layer (111b) made of relatively small sand and having ground water via the coarse sand layer (111a);
And a carbon powder layer (111c) made of carbon powder and passing through groundwater via the thin sand layer (111b).
5. The method of claim 4,
The coarse sand layer 111a, the fine sand layer 111b, and the carbon powder layer 111c are separated, and the inclined plate needle battery 112 is disposed below the coarse sand layer 111a, the fine sand layer 111b and the carbon powder layer 111c. Characterized in that each is located, groundwater treatment apparatus.
The method according to any one of claims 1 to 5,
And backwashing means (120) for washing the filter (111) by spraying backwash water in a direction opposite to the direction through which the groundwater supplied is passed through the filter (111).
The method according to claim 6,
The aberration is characterized in that the groundwater collecting space 31 is formed on the outer circumferential surface of the left, right, before, after the blocked water is repeated to collect and pour the falling water, groundwater treatment apparatus.
The method of claim 3,
The chemical supply means 40 has a chemical supply amount control valve 41 installed to adjust the supply amount of the disinfectant solution,
The aeration means (50) is characterized in that it has an air supply amount control valve (51) installed to adjust the supply amount of air, groundwater treatment apparatus.
The method according to any one of claims 1 to 5,
The overflow pipe 60 is connected to a portion spaced from the bottom of the stirring space 11,
Groundwater treatment device, characterized in that the ground pipe of the stirring space 11 is connected to the bottom of the stirring space 11 so that the ground water flows into the ground water storage tank (1).
The method of claim 9,
The inner diameter cross-sectional area of the drain pipe 70 is smaller than the inner diameter cross-sectional areas of the ground water supply pipe 2 and the overflow pipe 60 or is further provided with a drainage control valve 80 capable of adjusting the drainage through the drain pipe 70. Characterized in that the groundwater treatment device.
The method of claim 9,
Groundwater treatment device, characterized in that the partition 12 is installed in the stirring space 11 to be discharged from the stirring space (11) after the ground water flowing into the stirring space (11) flows along the set path.

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