KR101127995B1 - Purifying apparatus of stagnant water bottom - Google Patents

Abstract

PURPOSE: A cleaning device for the bottom surface is provided to enhance the collection efficiency because algae and heavy metals are collected by spraying compressed air without using chemicals such as a coagulant, and to create a growth environment of creatures because an anaerobic environment is changed to an aerobic environment by simultaneously supplying oxygen with eliminating offensive odor gas generated by an eutrophication. CONSTITUTION: A cleaning device for the bottom surface comprises a floating member(100) and a collecting member. The floating member make contaminant sank to the bottom surface or attached to soil, a gravel, sand etc. to float by spraying compressed air while transferring the compressed air. The floating member comprises a barge(110), a compressed air spraying member(130), and a transferring member. The barge comprises a plurality of floats and decks. The compressed air spraying member is installed in the bottom surface of the barge, thereby spraying the compressed air. The transferring member transfers the barge along a working area of a stagnant steam channel. The collecting member is connected to the rear part of the floating member, thereby collecting suspended solids.

Description

Submerged Basin Purifier {PURIFYING APPARATUS OF STAGNANT WATER BOTTOM}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bottom water purification system for stagnant water, and more particularly, to purify compressed water by spraying compressed air on the bottom surface of stagnant water, collecting contaminants deposited by the atomized bubbles, and collecting and purifying them. Relates to a device.

Generally, sediments accumulate at the bottom of lakes, reservoirs, dams, ports, and rivers, which are formed by mixing and depositing aggregates, such as sand and gravel, which have flowed upstream or from the ground, and sediment that contaminates water quality. .

The sediment consumes dissolved oxygen, which contains various contaminants such as nitrogen and phosphorus, which cause eutrophication, deteriorating the water quality, and algae, etc., multiply by eutrophication, causing harmful gases to the living organisms, and causing lakes, reservoirs, dams, ports and Accelerate pollution by losing midnight ability of rivers, etc.

On the other hand, until now, as a means of removing the contaminants on the bottom, first, the contaminants on the lake bottom were removed by dredging the bottom using dredgers. Since the bottom of the lake is pumped out using a bucket installed to operate the furnace, the pollutants cannot be properly removed while floating the various contaminants in the sedimented state during dredging, resulting in muddy water or excessive floating and diffusion of contaminants. There were problems that worsened the water quality.

Second, a method of spraying pressurized water in which chemicals (flocculants) and compressed air are dissolved at high pressure in the treated water at the site of the contaminated water to remove the contaminants reacted with the flocculant onto the water surface by the generated microbubbles. However, while direct water purification is possible in contaminated water, there was a problem of secondary environmental pollution due to flocculant.

Third, install a fence on part or all of the surface of the water, and blow air containing water into the bottom of a lake or reservoir with a large air compressor on the ground adjacent to the polluted water to infuse pollutants with fine air particles. Although narrowing to one side collects and removes injured contaminants, blowing compressed air into the bottom of the water does not remove any thick sediment that has settled on the bottom of the lake or reservoir, and does not completely purify the water. Was still high and the work time was long.

The present invention has been made in order to solve the above problems, while moving the working line to directly inject the compressed air into the bottom sediment layer in the stagnant water to raise the contaminants deposited by the atomized bubbles, etc. collected in a submerged trap network By collecting pure metals as well as algae without spraying chemicals such as flocculants, the collection rate can be increased by removing the odorous gases generated by eutrophication and by supplying oxygen to the anaerobic environment. The purpose of the present invention is to provide an apparatus for purifying stagnant water bottoms that can create a growth environment for living organisms, purify deeply in the bottom or bottom layer, and shorten working time.

The stagnant water bottom purifying apparatus according to the present invention for achieving the above object is a floating means for injecting compressed air to the bottom of the stagnant water to float the contaminants on the bottom while transporting; And

A collecting means connected to the floating means in a rearward direction of the floating means and collecting water while passing the water;

The floating means has a plurality of floats connected vertically and horizontally, the work line to which the deck is coupled to the upper portion, the compressed air injection means for spraying compressed air is installed on the bottom surface of the lower work line through the installation hole formed in the work line and It is characterized in that it comprises a transport means for transporting the work line along the work area of the partitioned stagnation water.

According to the above-mentioned means for solving the problem, it is possible to collect not only algae but also heavy metals and increase the collection rate by simply spraying pure compressed air without using chemicals such as flocculant, and to remove odorous gas and supply oxygen to the anaerobic environment. Can be transformed into an aerobic environment to create a living environment for the organisms, and can reduce the working time required for bottom purification at low cost.

1 is a plan view showing a working line of the purification apparatus according to the embodiment of the present invention.
2 is a side view of FIG. 1.
3 is a plan view showing a submersible collecting network of the purification apparatus according to the embodiment of the present invention.
4 is a view showing an installation state of the air jet assembly shown in FIG.
5 is a view showing another embodiment of the air jet constituting the air jet assembly shown in FIG.
6A to 6D are graphs showing changes before and after a purification operation according to an embodiment of the present invention.

Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

1 is a plan view showing a working line of the purification apparatus according to an embodiment of the present invention, Figure 2 is a side view of Figure 1, Figure 3 is a plan view showing a submersible collecting network of the purification apparatus according to an embodiment of the present invention, 4 is a view showing an installation state of the air jet assembly shown in FIG.

As shown, the purifying device 10 according to the embodiment of the present invention is a floating means for floating the contaminants attached to the bottom of the stagnant water or attached to the soil, gravel, sand by spraying compressed air while transporting ) And a collecting means 200 connected to the conveying direction rear of the floating means 100 to collect the floating material.

The floating means 100 is configured to include a working line 110, compressed air injection means 130, transfer means 150.

The work line 110 connects a plurality of buoys 112 vertically and horizontally so that they can float on water using buoyancy, and are coupled to the upper part to mount the equipment and work in a state where a person rides on the upper part. The deck 114 is formed to be horizontally flat.

The deck 114 has an air compressor 170 for compressing air to a pressure above atmospheric pressure to create compressed air, an air tank 172 connected to the air compressor 170 and an air hose to store compressed air, and electricity A generator 174 to be generated, a hydraulic pump 176 to increase the hydraulic pressure of the generator 174 is mounted.

At this time, the pressure of the air compressor 170 is 1 ~ 7kgf / cm ² .

The work line 110 has an installation hole 116 formed to penetrate up and down in the middle, and the air jet assembly 140 is positioned on the bottom surface of the lower work line 110 through the installation hole 116.

To this end, hoist supports 132 protruding upward from the deck 114 at both sides of the installation hole 116 are connected to each other, and a plurality of hoists 134 are installed at the hoist supports 132 and the hoists 134. The air jet assembly 140 is connected to the rope 136 to be positioned on the bottom surface of the lower working line 110 through the installation hole 116.

The air jet assembly 140 is horizontally mounted on the support 142 is formed by a plurality of support 141 is coupled to the top and bottom and left and right, and the support 141 on the upper portion of the support 142 and the deck 114 The distribution pipe 144 communicates with the air tank 172 of the air hose and the air rod 145 mounted up and down on the support 142, the distribution pipe 144 is connected to the air hose and the air The end of the rod 145 is configured to include a plurality of air jet 147 coupled to the nozzle 146 for injecting compressed air inclined downward.

At this time, the nozzle 146 is preferably 38 to 48 degrees downward.

That is, the air compressor 170, the air tank 172 is mounted on the deck 114 to make and spray compressed air, and the hoist support 132 and the hoist support 132 to lift the air jet assembly 140 up and down according to the depth Hoist 134 is installed on deck 114 such that airjet assembly 140 is connected to hoist 134 by rope 136.

The conveying means 150 for transporting the work line 110 from one side of the partitioned work area to the other side includes a transport rope 152 arranged side by side between the start point and the end point of the partitioned work area, and the transport rope. Guides 154 installed on both sides of the deck 114 so that the 152 can be located therebetween, and installed on both sides of the deck 114 to transfer the transfer rope 152 of the working ship 110. It is configured to include a winch 156 to wind the winding direction in the opposite direction while the working line 110 is conveyed.

At this time, the feed rate of the working line 110 is preferably 0.3 ~ 0.7 knots in consideration of the collection rate and the working time of the purification work.

In other words, when 0.3 knot or less, the working time is long, and when 0.7 knot or more, the collection rate falls.

The roller brush 300, which is another means for cleaning the bottom of the stagnant water body, has a roller brush body 303 in which a shaft 301 is fitted in the center and a brush 302 is formed outward, and the rear of the deck 114. Restraint die 310 mounted on both sides, one side is coupled to the restraint die 310 and the other end is coupled to both sides of the roller brush body 303, the length is adjusted according to the water depth and the inclination angle of the roller brush body 303 A support bar 312 for adjusting the bearing, a bearing 314 coupled to both sides of the shaft 301 to support rotation, and one end of the shaft 301 outside the bearing 314 and the deck ( The hydraulic pump 176 and the hydraulic hose 316 connected to the hydraulic hose of 114 and the submersible hydraulic motor 316 and the fastener 318 to prevent the movement of the bearing 314 is configured to include.

On the other hand, when heavy gravel or the like is laid on the bottom of the stagnant water, the gravel does not float in the compressed air jet of the air jet 147, but only a part of the foreign matter buried in the gravel crevice falls to the gravel and purifies the stagnant water. Pebbles, etc. are not clear to see.

In this case, the roller brush 300 is installed as necessary, and the outer brush 302 is rotated to be in contact with the gap between the gravel or gravel surface and the gravel by rotation.

Preferably, the bearing 314 is a waterproof spherical bearing that is waterproof and secures free swing and rotational movements.

3 is a view showing a submersible trap network installed behind the work line, the collecting means 200 for collecting and collecting the polluted suspended by the compressed air injection, the working line 110 of the A plurality of rope bars 202 to be coupled to adjust the length to the outside, the rope 204 is connected to the rope bar 202 in order to form an arc to the rear of the working line 110, and the rope 204 ) Is inserted and connected to float on the surface of the water, and the front is open and narrowed toward the rear, the rear end is clogged form, the upper part of the front is connected to the rope 204 fitted to the ball 206 is connected to the water surface The submerged trapping network 210 which floats and is connected to the high strength locking bar 208 of steel and sinks to the bottom, and the submersible trapping network at the locking bar 208 so that the lower part of the submersible trapping network 210 sinks to the bottom. Back along 210 Sum and are connected to each other chain (212) comprises a chain belt 214 that is charged.

In addition, the submersible trapping net 210 for collecting the suspended substance consists of a mesh net 216 and the collecting cloth 218, the bottom mesh net 216a formed in a certain period behind the locking bar 208 is soil Slenderly slender so that the soil, etc. can pass through, the upper mesh net (216b) formed in the middle of the upper portion of the submersible trapping network 210 reduces the resistance of the water when moving the working line 110, submerged trapping network The remaining portion of 210 consists of a collecting cloth 218.

In addition, a separate outlet is provided at the end of the submersible trapping network (210).

The bottom mesh net 216a is formed more sparsely than the upper mesh net 216b, and the collecting spring 218 is a filter cloth used for sewage treatment plant or industrial water treatment, and blocks the diffusion of suspended matter. .

The locking bar 208 serves as a reference when the submersible trapping network 210 is installed, and prevents the leakage of turbid material when stopped, so that an antifouling film is unnecessary together with the submersible trapping network 210.

The chain 212 prevents buoyancy and allows the submersible trapping network 210 to maintain a constant shape.

Referring to the purification of the bottom surface of the stagnant water by the above configuration, first divide the work area into a predetermined size and float the work line 110 in the partitioned work area to connect the transport rope 152 to the starting point and end point of the work area. It is installed side by side to be located inside the guide 154 on both sides of the working line (110).

In addition, the submersible trapping net is wide open in a submerged state so that the front becomes open and narrows toward the rear to form a blockage.

Next, the equipment on the deck 114, for example, the air compressor 170, the generator 174, the hydraulic pump 176 is operated to create a hydraulic pressure of the compressed air and high pressure to the air jet 147 and the hydraulic motor 316 By supplying compressed air to the bottom surface, the roller brush body 303 is rotated.

At this time, the high-pressure compressed air generated in the air compressor 170 is injected downwardly inclined toward the bottom through the air jet 147 to generate powerful micro vibrations and micro bubbles while colliding with contaminants on the bottom. Bubbles inhale and exfoliate the contaminants in the liquid medium and float together with the air. During this process, the odorous gas is separated and the residual oxygen generated increases the dissolved oxygen where the odorous gas is ejected.

Compressed air is injected by the compressed air jet 147, and oxygen is delivered to the anaerobic layer while circulating water in the stagnant water, thereby improving the environment of the deep water layer.

The roller brush body 303 is rotated by the hydraulic motor 316 and the brush 302 wipes and washes gravel on the bottom.

On the other hand, the working line 110 is moved to 0.3 ~ 0.7 knots (knot) by the operation of the winch 156, the heavy soil or sand is the bottom mesh net 216a of the submersible trap network 210 The pollutants or algae are suspended and collected in the capture stream 218 of the submersible trap network 210.

This is carried out by moving from the point of view of the work area to the end point, the collected contaminants, or floats, are collected out of the water and then dehydrated naturally, and the remaining debris (sludge) is disposed of as waste.

Table 1 below shows sample measurement analysis data before and after the work of Ilsan Lake Park, which was commissioned by the Korea Research Institute for Chemical Convergence.

As can be seen from Table 1, the efficiency of chemical oxygen demand (COD) of FIG. 6A, algae (SS) of FIG. 6B, total nitrogen (TN) of FIG. 6C, and total phosphorus (TP) of FIG. 6D are improved. Can be.

5A and 5B illustrate another embodiment of the air jet constituting the air jet assembly shown in FIG. 3.

As shown, the air jet 190 has a nozzle 193 is formed to inject the compressed air inclined upwardly to the nozzle 192 coupled to the lower end of the air rod 191 (see Fig. 5a), or downward An injection hole 193 is formed to inject compressed air (see FIG. 5B).

In addition, the scarf 194 is extrapolated to the air rod 191, the scarf 194 has a shape that is extrapolated to the air rod 191 is narrow and spread toward the bottom.

The scarf 194 may be adjusted after moving to a desired position of the air rod 191 to be fixed to the nozzle 192 coupled to the bottom.

The freshly shaped scarf 194 increases the spraying effect of compressed air by interacting with the nozzle 192, and finely differentiates by blocking the hydraulic pressure and oxygen generated during the generation of compressed air while colliding with it. Fine air particles are dissolved in water and remain.

That is, while the nozzle 192 of FIG. 5A continues to inject compressed air to the top, the compressed air impinges upon the scarf 194 of the lampshade and the bubbles are refined and sprayed toward the bottom surface.

At this time, the nozzle 192 of FIG. 5A facing upward generates a vortex in a strong collision with the scarf 194, and the nozzle 192 of FIG. 5B facing downward strongly strikes and floats in the settling sludge in the scarf 194. It is possible to achieve the purpose of water purification by increasing the oxygen supply to the bottom sedimentation layer by increasing the purging range by colliding with the generated vortex and widening the purification range.

As described above, the aeration amount is increased in a deep aeration method to induce supersaturation of the dissolved gas, thereby inducing sludge rise by the microbubbles generated.

The air jet method through this principle makes it easy to remove and remove the dirt.

Among these features, the re-bubbling of nitrogen and saturates is a unique feature of deep aeration, which does not occur well in conventional aeration, and the tendency of sludge rise becomes apparent when the depth of a deep port or appeal exceeds 5 m.

As a result of the formation of vortices in the water, the sand or soil at the bottom rises from the bottom and moves along the vortices. At this time, contaminants are separated from the sand or soil by strong compressed air and floated upward with algae.

The air jets 147 and 190 shown in Figs. 3 and 5 may be composed of a plurality of air jet assemblies, or may be configured of a multi-air jet assembly of various types of air jet assemblies.

10: purifier 100: floating means
110: working ship 130: compressed air injection means
150: transfer means 200: collecting means
210: submersible trapping network 300: roller brush

Claims (10)

Floating means for injecting compressed air to the bottom surface of the stagnant water while transporting to float contaminants on the bottom surface; And
A collecting means connected to the floating means in a rearward direction of the floating means and collecting water while passing the water;
The floating means has a plurality of floats connected vertically and horizontally, the work line to which the deck is coupled to the upper portion, the compressed air injection means for spraying compressed air is installed on the bottom surface of the lower work line through the installation hole formed in the work line and And a conveying means for transporting the working line along the work area of the partitioned stagnant water body. The method of claim 1,
Located in the bottom surface between the working line and the collecting means is a roller brush for cleaning the scrubbing stones such as gravel while rotating by hydraulic pressure is further provided. The method of claim 2,
The roller brush has a roller brush body in which a shaft is fitted in the center and a brush is formed on the outside, a restraining die mounted on both sides of the rear end of the deck, and one side is coupled to the restraining die, and the other end is connected to both sides of the roller brush body. A support bar that is coupled to adjust the length to the bottom and the inclination angle of the roller brush body, a bearing that is coupled to both sides of the shaft to support rotation, and is coupled to one end of the shaft outside the bearing, and the hydraulic pump and hydraulic pressure of the deck A hydrostatic water surface bottom purification device comprising an underwater hydraulic motor connected to the hose to rotate the roller brush body by hydraulic pressure. The method of claim 3,
And a fixture for preventing the submerged hydraulic motor and the bearing from moving, wherein the bearing is a waterproof spherical bearing which ensures free swing and rotational movement while being waterproof. The method according to claim 1 or 2,
The compressed air injection means is a hoist support projecting upward from the deck on both sides of the installation hole is connected to each other, a hoist connected to the hoist support, and the rope is connected to the hoist on the bottom surface of the work line through the installation hole Including an airjet assembly;
The air jet assembly includes a support having a plurality of supports coupled up and down and left and right, a distribution pipe horizontally mounted on the support and communicating with the air tank of the deck and an air hose, and connected to the distribution pipe by an air hose. And a plurality of air jets coupled to nozzles for injecting compressed air downwardly at an end thereof. The method of claim 5,
Downward inclination angle of the nozzle is a stagnant water bottom purifier, characterized in that 38 ~ 48 °. The method according to claim 1 or 2,
The conveying means includes a conveying rope installed side by side between the starting point and the end point of the partitioned work area, guides provided on both sides of the deck so that the conveying rope can be located therebetween, and installed on both sides of the deck so as to convey the conveying rope. A stagnant water bottom purifier, comprising: a winch for winding a rope in a conveying direction and releasing it in a conveying opposite direction to convey a work line. The method of claim 7, wherein
The speed of the working line is 0.3 ~ 0.7 knots (knot) stagnant water bottom purifier, characterized in that. The method according to claim 1 or 2,
The collecting means includes a plurality of rope bars coupled to the length adjustable to the outside of the work line, a rope connected to the rope bar in order to form an arc to the rear of the work line, and a plurality of buckle to be fitted to the rope to float on the water surface And, the front is open and narrowed toward the rear, the rear end is clogged form, the upper part of the front is connected to the rope floating on the water and the lower part is connected to the locking bar to sink to the bottom, and the lower part of the submersible collecting network is the bottom The submerged body bottom purification device characterized in that it comprises a chain strap coupled to the rear along the submerged trapping net in the locking bar to sink in the chain is embedded. 10. The method of claim 9,
The sub-type trapping net is made of a mesh net and the collecting cloth, the bottom mesh net formed in a certain section behind the locking bar is formed sparsely so that soil, sand can pass through, the upper mesh net is formed in a certain section in the upper middle Bottom water purification device, characterized in that to reduce the resistance of the water when moving the work line.

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