KR101886649B1 - Movable Ship for Removing Algae Using the Microbubbles - Google Patents

Movable Ship for Removing Algae Using the Microbubbles Download PDF

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KR101886649B1
KR101886649B1 KR1020160101861A KR20160101861A KR101886649B1 KR 101886649 B1 KR101886649 B1 KR 101886649B1 KR 1020160101861 A KR1020160101861 A KR 1020160101861A KR 20160101861 A KR20160101861 A KR 20160101861A KR 101886649 B1 KR101886649 B1 KR 101886649B1
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South Korea
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unit
water
sludge
hull
lake
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KR1020160101861A
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Korean (ko)
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KR20180017673A (en
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김종국
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주식회사 에네트
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Priority to KR1020160101861A priority Critical patent/KR101886649B1/en
Priority to PCT/KR2017/005788 priority patent/WO2018030620A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/22—Arrangement of ship-based loading or unloading equipment for cargo or passengers of conveyers, e.g. of endless-belt or screw-type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/32—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for collecting pollution from open water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
    • B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
    • B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability
    • B63B43/06—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability using ballast tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/06—Steering by rudders
    • B63H25/38—Rudders
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2207/00—Buoyancy or ballast means
    • B63B2207/02—Variable ballast or buoyancy

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Public Health (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Removal Of Floating Material (AREA)
  • Physical Water Treatments (AREA)
  • Treatment Of Sludge (AREA)

Abstract

[0001] The present invention relates to a portable algae removing apparatus using ultra-high-strength foil, and more particularly, to a portable algae removing apparatus using ultra-high-strength foil, It is possible to reduce the size of the conventional algae removing vessel requiring a pressurizing tank and a compressor and to improve the mobility by reducing the weight, It is possible to make ultra-fine grained bubbles, thereby increasing the contact efficiency and lifting force of the pollutants, effectively treating the pollutants in a short time, and concentrating the floating matters floating on the fine bubbles to a high concentration, To an algae removing device.

Figure 112016077724873-pat00007

Description

Movable Ship for Removal Algae Using the Microbubbles

The present invention relates to a portable algae removing apparatus using ultra-fine grained vesicles, and more particularly, to a moving algae removing apparatus using ultra-fine grained vesicles, which is capable of rapidly and efficiently removing ebb The present invention relates to a portable algae removing apparatus using the same.

Due to deterioration of water quality caused by nutrients such as nitrogen and phosphorus contained in fertilizer, livestock wastewater, domestic wastewater, and industrial wastewater, green algae occur in rivers and lakes and red tides occur in the oceans, destroying ecosystems. Water eutrophied by the nutrients contained in wastewater causes the flourishing of birds.

If the algae thrive on the surface of water, it inhibits the penetration of rays to prevent smooth photosynthesis of aquatic organisms, and lowers the rate of dissolved oxygen in the water, thus losing its ability to function in the water. Green algae and red tide caused by eutrophication can shut off the oxygen supply in the water and kill the inhabitants that live in the water.

In addition, when red tide occurs on the raw paper, tidal problems caused by algae occur, so that highly purified water treatment is required, and excessive chlorine disinfection can form a toxic tricyl halomethane (THM). In the case of Korea, there are several hundred billion won damage every year due to the occurrence of green tide and red tide, which is an annual event of spring and fall, and thus, an effective treatment method of algae is required.

In order to remove algae such as green tide and red tide occurring in lakes, dams, rivers and seas, a method of removing algae using a ship equipped with a floating separation device using air is used.

As shown in FIG. 1, a ship disclosed in Korean Patent Publication No. 2002-0005181 includes a compressor 31 for supplying compressed air to a pressurizing tank, a compressor 31 for supplying compressed air to the compressor 31 And a pressurizing tank 32 for storing pressurized water containing dissolved air is disposed in the line 11.

The compressor 31 in the prior art has to use a large capacity pump having a high compression capacity in order to increase the solubility of air. In addition, the pressurized tank 32 in which compressed air and water are stored is also required to have a large capacity so that the air can be dissolved well in the water.

Therefore, due to the size and weight of the compressor 31 and the pressurizing tank 32, the volume and weight of the vessel for removing algae also increase, resulting in poor mobility and operation efficiency.

This problem is particularly serious when the capacity of a large capacity is required, the size and weight of the compressor and the pressure tank are further increased, and the mobility of the ship and the operation efficiency are drastically reduced. Particularly, in the case of the algae removal treatment work in a river having a high flow velocity or a large area, the mobility of the vessel and the deterioration of the working efficiency become more serious.

Korean Patent Laid-Open Publication No. 2002-0005181

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide an apparatus and a method for efficiently removing algae and improving water quality in a river or a wide area with a small weight, And a portable algae removing device using the ultra-fine grained cloth.

In order to achieve the above object, an embodiment of the present invention provides a hull comprising: a hull traveling along a lake; A coagulant input unit provided at a front end of the hull to inject a coagulant into the lake and form a dissolved material of lake water into particulate sludge; A fine bubble generator disposed at a rear end of the coagulant injecting unit to generate fine bubbles to float the particulate sludge to the upper part of the lake; A scraper unit for collecting the particulate sludge floated by the bubbles generated in the fine bubble generator while moving the bubble; A sludge hopper for storing the particulate sludge collected by the scraper unit; A pair of lifting portions disposed on both sides of the hull so as to extend along the longitudinal direction of the hull and float the hull to the water surface; And a control unit for controlling the coagulant injecting unit, the fine bubble generating unit, and the scraper unit, wherein the fine bubble generating unit includes a water supply unit having a circulation pump for supplying water and a circulation pipe; An injector unit formed at the discharge side of the water supply unit and sucking outside air into the circulation pipe; An air supply unit connected to the injector unit and having an intake valve for allowing outside air to be sucked by a pressure difference; A chamber unit connected to one side of the injector unit and supplied with a mixture of air and water mixed and discharged from an injector unit and colliding with a collision plate or an inner wall installed therein to form fine bubbles; And a bubble spraying unit for spraying fine bubbles formed from the chamber unit into the lake, wherein at least two movable algae removing units are arranged in parallel with each other.

In a preferred embodiment of the present invention, the chamber unit comprises: a body having a space formed therein; An inlet connected to a lower end of the main body to allow a mixture of air and water to flow into the main body; An induction member connected to the inlet port and providing a path of the mixed liquid introduced into the inlet port; An impingement plate installed adjacent to the distal end of the guide member to form a fine bubble by collision of the mixed liquid having passed through the mixed liquid guide member; And a discharge port connected to one side of the upper portion of the main body and discharging water including fine bubbles formed by the impingement plate.

According to a preferred embodiment of the present invention, the sludge hopper part is formed in a square shape along the inner edge of the pair of floating parts, and a flow passage through which the lake water flows is formed inside the sludge hopper part. And the sidewall is disposed higher than the water level so that the sludge floated through the flow path inside the sludge hopper part can be collected by the scraper unit into the sludge hopper part.

In a preferred embodiment of the present invention, the scraper unit comprises: a motor; A drive shaft connected to the motor; A slave axis spaced apart from and parallel to the drive shaft along a direction in which the hull is driven; A chain rotatably coupled to the drive shaft and the driven shaft in a closed loop manner; A plurality of moving pieces coupled to the chain and moved along the chain; A scraper coupled to the moving piece and moved together with the moving piece to move the sludge with a large surface area to collect the sludge by the sludge hopper part; A plurality of ascending / descending rails vertically installed on the inner side surfaces of the pair of lifting portions to adjust the height of the scraper unit; A bracket coupled to the plurality of raising and lowering rails and having a roller on one side of which the driving shaft moves along the raising and lowering rail, And a fixing member for fixing the bracket to the elevating and lowering rails.

In a preferred embodiment of the present invention, the movable algae removing device is characterized in that the water level of the hull is adjusted by filling the inside of the pair of floating parts with air or water.

In a preferred embodiment of the present invention, the power generating unit is provided at one side of the hull and generates power for driving the hull; And a direction key provided at a rear end of the hull to adjust a running direction of the hull.

In a preferred embodiment of the present invention, the pair of floating portions may be characterized in that a surface thereof is coated with a photocatalyst.

The movable alga-removing device according to the present invention is not a conventional air compressor driving type but uses an ultra-miniaturized micro-bubble generator to provide a super-strong bubble necessary for the flotation treatment. Therefore, The size of the ship is smaller than that of the bird-removing ship, and the weight is reduced, thereby improving the mobility.

In addition, the present invention can form micro-bubbles having an average diameter of less than 100 탆 at a low pressure by using a high-speed collision method of water and air in generating minute bubbles, thereby increasing contact efficiency and floatability of contaminants It is possible to effectively treat contaminants in a short period of time and to concentrate the suspended matter floated on the excess fine bubbles to a high concentration to reduce the amount of sludge generated.

1 is a schematic view of a conventional algae removing vessel.
2 is a schematic plan view of a mobile algae removal device according to one embodiment of the present invention.
3 is a cross-sectional schematic view of a mobile algaecide device in accordance with an embodiment of the present invention.
4 is a schematic view of a micro-bubble generator according to an embodiment of the present invention.
5 is a schematic view of a chamber unit according to another embodiment of the present invention.
6 is an image of a scraper unit according to an embodiment of the present invention.
7 is a schematic plan view of a mobile algaecide device according to another embodiment of the present invention.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In general, the nomenclature used herein is well known and commonly used in the art.

Throughout this specification, when an element is referred to as "including " an element, it is understood that the element may include other elements as well, without departing from the other elements unless specifically stated otherwise.

As used herein, the term "lake" refers collectively to an inland waterside hydrograph, which is subdivided into lakes, swamps, wetlands, and marshland. However, the term "lake" refers to rivers, agricultural reservoirs, And the like.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hull comprising: A coagulant input unit provided at a front end of the hull to inject a coagulant into the lake and form a dissolved material of lake water into particulate sludge; A fine bubble generator disposed at a rear end of the coagulant injecting unit to generate fine bubbles to float the particulate sludge to the upper part of the lake; A scraper unit for collecting the particulate sludge floated by the bubbles generated in the fine bubble generator while moving the bubble; A sludge hopper for storing the particulate sludge collected by the scraper unit; A pair of lifting portions disposed on both sides of the hull so as to extend along the longitudinal direction of the hull and float the hull to the water surface; And a control unit for controlling the coagulant injecting unit, the fine bubble generating unit, and the scraper unit, wherein the fine bubble generating unit includes a water supply unit having a circulation pump for supplying water and a circulation pipe; An injector unit formed at the discharge side of the water supply unit and sucking outside air into the circulation pipe; An air supply unit connected to the injector unit and having an intake valve for allowing outside air to be sucked by a pressure difference; A chamber unit connected to one side of the injector unit and supplied with a mixture of air and water mixed and discharged from an injector unit and colliding with a collision plate or an inner wall installed therein to form fine bubbles; And a bubble spray unit for spraying fine bubbles formed from the chamber unit into the lake, wherein the movable algae elimination units are arranged in parallel in two or more pieces.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 2 is a schematic plan view of a portable algaecide device according to an embodiment of the present invention, FIG. 3 is a schematic cross-sectional view of a portable algae removing device according to an embodiment of the present invention, FIG. FIG. 5 is a schematic view of a chamber unit according to another embodiment of the present invention, FIG. 6 is an image of a scraper unit according to an embodiment of the present invention, and FIG. 7 is a schematic view of another embodiment 1 is a schematic plan view of a portable algaecide device according to an example.

The movable algaecide device according to an embodiment of the present invention includes a hull 110, a coagulant input unit 120, a fine bubble generator 130, a scraper unit 210, a sludge hopper unit 230, A power generating unit 260, and a control unit 270. The control unit 270 controls the operation of the movable algae removing unit.

The hull 110 is preferably a streamlined structure in which a ship body is actuated to remove algae while algae are generated in a lake, and when the flow of water flows from left to right, The sludge S is collected in the sludge hopper unit 230, which will be described later.

The coagulant input unit 120 and the fine bubble generator 130 may be disposed at a front end of the hull 110 and a direction key 300 may be disposed at a rear end thereof.

The coagulant input unit 120 is provided at the front end of the hull, and injects the coagulant into the lake. The coagulant is a substance having the ability to neutralize the charge of the colloid and the cross-linking ability to bond the colloidal particles to flocculate the suspended material or algae. The former should be an ion having opposite charge to the coagulated colloid. The latter is a polymer material Be able to. Therefore, it is preferable to use those having both of these conditions as a coagulant.

Generally, positively chargeable substances which are widely used may be metal salts or synthetic polymers, natural polymers such as aluminum salts, iron salts, chitosan, polyacrylamides, etc., which are easily hydrolyzed to form hydroxide polymers of charge (+).

More specifically, it includes polyaluminum chloride (PAC), aluminum sulfate (Al 2 (SO 4 ) 3 8H 2 O), ferrous sulfate (FeSO 4 H 2 O) 2 iron (ferric Sulfate: Fe 2 (SO 4) 3), ferric chloride (ferric chloride: FeCl 3), calcium hydroxide (calcium hydroxide: Ca (OH) 2), calcium oxide (calcium oxide: CaO), aluminum acid At least one organic coagulant selected from sodium aluminate (Na 2 Al 2 O 2 ), chitosan, and polyacrylamide may be used.

Also, it is preferable that the coagulant is supplied so as to maintain the concentration of 0.5 to 25 ppm depending on the suspended solids of the lake or the concentration of the algae. If the concentration is less than 0.5 ppm, If the concentration exceeds 25 ppm, the inorganic coagulant of iron or aluminum is strongly acidic, and the acidity of the lake water becomes acidic after the treatment, There is a disadvantage that neutralization must be performed to protect the water quality ecosystem. In addition to this, aluminum or iron components that have been supplied excessively after the treatment can be eluted, which increases the possibility that the water quality deteriorates due to heavy metals such as aluminum or iron. Therefore, it is preferable to supply the coagulant at the above-mentioned concentration in order to purify the alga occurring in the lake.

In the present invention, an acrylamide-based polymer coagulant may be used as a coagulant or a coagulant may be additionally used so that a larger network can be formed to form a larger floc.

Inorganic coagulant or organic coagulant may be used in the present invention and organic coagulant may include agar, starch and gelatin, and inorganic coagulant may be one or more of clay and active silica Can be used.

The coagulant input unit 120 includes a chemical tank 121, a coagulant input line 122, and a coagulant feed pump 123.

The chemical tank 121 may contain a flocculant therein, an agitator (not shown) may be provided, and a plurality of chemical tanks may be separately provided for each flocculant. The flocculant contained in the chemical tank may be introduced into the lake ), And the input ratio of the coagulant can be adjusted by the coagulant feed pump (123) in accordance with the appropriate operation instructions according to the change of the concentration of the algae and the state of the lake. The control of the coagulant feed pump is constituted by a quantitative diaphragm pump that is driven and controlled through a control unit 270, which will be described later.

When the dissolved substance (algae) of the lake water is formed into granular sludge due to the coagulant injected into the lake at the coagulant input unit 120, the fine bubble generating unit 130 disposed at the rear end of the coagulant loading unit 120, And the flocculated particulate sludge is floated to the upper part of the lake.

The micro-bubble generator 130 is disposed at the rear end of the coagulant injecting unit 120 to help float the particulate sludge S flowing into the micro-bubble generator region, that is, the coagulated suspension, together with the micro- .

In the case of the related art, the micro-bubbles are generated by the compressed air through the air compressor, thereby consuming a large amount of electric power. In addition, although a high pressure is generated in the head, the air compressor is not used at all It is possible to form a relatively low-pressure condition since fine bubbles are generated, thereby increasing the floatation efficiency.

The micro-bubble generating unit 130 according to the present invention includes a water supply unit 133 having a circulation pump 131 for supplying water and a circulation pipe 132; An injector unit 134 formed at a discharge side of the water supply unit 133 to suck outside air into the water inside the circulation pipe 131; An air supply unit 136 connected to the injector unit 134 and having an intake valve 135 for allowing external air to be sucked by a pressure difference; A chamber unit connected to one side of the injector unit 134 to receive the air inclusion discharged from the injector unit and collide the supplied air inclusion with the collision plate 137 or the inner wall of the chamber to form micro bubbles 138); And a bubble jetting unit 139 for jetting the fine bubbles formed from the chamber unit 138 into the capsule.

The water supply unit 133 of the fine bubble generator has a circulation pump 131 and a circulation pipe 132 for supplying water (indicated by a solid line) to the injector unit 134. At this time, the water to be supplied for the formation of micro-bubbles can be water in lake water (lake water) or water stored in a water tank, and when lake water is used, a circulating pipe is provided with a known filtration member (not shown) Of water can be supplied.

The injector unit 134 is formed on the discharge side of the circulation pump 131 and sucked into the circulation pipe by external air (indicated by a dotted arrow). The injector unit 134 is equipped with a low-power air suction pump to inject air into the circulation pipe 131 However, in the present invention, it is preferable to use a natural suction method, and the pressure inside the circulation pipe is reduced through the injector unit so that the outside air can be sucked.

The injector unit 134 is connected to an air supply unit 136 having an intake valve 135 so that outside air can be sucked by a pressure difference in a predetermined interval, The outside air is naturally sucked into the circulation pipe 132 through the intake valve 135 of the air supply unit at the start or start of the circulation pump 131 of the supply unit. At this time, the amount of the air sucked through the intake valve can be adjusted. With this structure, air can be sucked into the water supplied without any additional power.

The chamber unit 138 collides the mixed liquid in which the air and the water sucked through the injector unit 134 are mixed with the inner wall W or the impingement plate 137 at a high speed to crush the air particles to generate fine bubbles To form fine bubbles through turbulent flow.

The chamber unit 138 according to the preferred embodiment of the present invention includes a body 140 having a space formed therein; An inlet 141 connected to one side of the lower end of the main body 140 to allow a mixture of air and water to flow into the main body 140; An induction member (142) connected to the inlet and providing a path of the mixed liquid introduced into the inlet; An impact plate (137) provided adjacent to the distal end of the guide member and colliding with the mixed liquid which has passed through the mixed liquid guide member to form minute bubbles; And a discharge port 143 connected to one side of the upper portion of the main body and discharging liquid containing fine bubbles formed by the impingement plate.

The main body 140 of the chamber unit may have a cylindrical shape extending in the longitudinal direction and having a space formed therein. The inlet 141 is connected to a lower end of the main body 140, And a circulation pipe 132 connected to the circulation pipe 134 to receive a mixture of air and water.

In addition, the guide member 142 of the chamber unit provides a path for the passage of the mixed liquid through the inlet. At this time, the mixed liquid guide member is provided inside the body to extend along the longitudinal direction of the body of the minute bubbles generating unit 130, specifically, the minute bubbles generating unit 130. In a specific aspect, the mixed liquid guiding member may be in the form of a venturi tube so as to move along the mixed liquid guiding member inside and increase the flow rate of the mixed liquid.

In addition, the impingement plate 137 of the chamber unit is disposed adjacent to the mixed liquid guide member 142 so that the mixed liquid discharged from the end of the mixed liquid guide member collides with and forms minute bubbles. At this time, the impingement plate may have a shape having an area larger than the end diameter of the mixed liquid guide member. In order to facilitate the contact between the air and the water, the impingement plate may be formed in a convexly protruding or concave curved shape.

The mixed liquid which collides with the impact plate collides with the microbubbles due to the collision, so that the air contained in the mixed liquid dissolves in the water. Then, the water in which the microbubbles are dispersed is discharged through the discharge port 143 connected to the upper side of the main body / RTI >

In the chamber unit, the water in which minute bubbles discharged at a low pressure of 1.8 kgf / cm 2 are dispersed, the pressure is converted to the atmospheric pressure in the lake water, and the superheated gas by this pressure difference promotes the generation of the ultra- .

On the other hand, the scraper unit 210 is configured to collect the particulate sludge floated by the bubbles generated in the minute bubble generating unit while moving it, and the height of the scraper unit 210 can be adjusted according to the water level.

The scraper unit 210 includes a motor 211; A drive shaft 212 connected to the motor; A driven shaft 213 spaced apart from and parallel to the drive shaft along the direction in which the hull is driven; A chain 214 coupled to the drive shaft and the driven shaft in a closed loop manner and rotated; A plurality of moving pieces 215 coupled to the chain and moved along the chain; A scraper 216 coupled to the moving piece to move together with the moving piece to move the sludge with a large surface area to collect the sludge by the sludge hopper part; A plurality of ascending / descending rails 217 vertically installed on the inner side surfaces of the pair of floating portions to adjust the height of the scraper unit; A bracket 219 coupled to the plurality of raising and lowering rails and having a roller 218 at one side thereof for moving the drive shaft along the raising and lowering rails, And a fixing member 220 for fixing the bracket to the elevating and lowering rails.

When the motor 211 is operated and the driving shaft 212 is rotated, the driven shaft 213 is also rotated by the chain 214 so that the scrapers 216 are moved along with the moving piece 215 along the chain 214 And moves the sludge floated as it moves to the sludge hopper unit 230. Accordingly, the sludge can be collected in the sludge hopper unit 230, and the collected sludge is dehydrated through the dewatering unit 280 to be disposed of.

At this time, the height of the scraper unit 210 is controlled by the roller 218 of the bracket coupled to the driving shaft 212 on one side of the ascending and descending rail 217 vertically installed on the inner side of the pair of lifting portions 250, And the elevation of the scraper unit is adjusted by moving the lifting rails along the elevating and lowering rails in accordance with the water level of the lake, the bracket 219 is fixed to the elevating and lowering rails 217 by using a fixing member. The fixing member 220 may be any conventional member that can prevent the movement of the bracket. For example, the fixing member 220 may be a fixing bolt or the like.

The sludge hopper part 230 is a place where the sludge collected by the scraper unit 210 is stored and is disposed along the inner edge of a pair of lifting parts 250 to be described later, And is disposed higher than the water level. Therefore, the flow path through which the water can pass can be formed inside the portable algaecide device. Accordingly, water flowing through the coagulant input part 120 and the fine bubble generating part 130 installed at the front end, The sludge is lifted and moved by the scraper unit 210 and collected into the sludge hopper unit 230.

The apparatus for removing algae according to the present invention includes a dewatering unit 280 for dewatering sludge collected by a sludge hopper unit 230 to produce a sludge cake, a sludge storage tank for storing sludge cake dewatered in the dewatering unit, (290). The dewatering unit 280 can be used without restriction of a known sludge dewatering unit for dewatering and concentrating the sludge collected in the sludge hopper unit.

On the other hand, the pair of lifting portions 250 are disposed on both sides of the hull along the longitudinal direction of the hull so as to float the hull to the water surface. The floating portion can be used without limitation as long as it is a floating body member capable of lifting the hull to the water surface. For example, air, water, gas, or the like may be filled in the floating portion for floating the hull on the water surface.

The movable algae removing device of the present invention can adjust the water level of the hull by filling or removing air or water in the pair of floating parts to adjust the water level of the hull. If the amount of sludge to be removed is high or the water level of the lake is high, air can be injected into the floating part or the water level can be removed to adjust the water level. If the water level of the lake is lowered, water is injected into the floating part Alternatively, the water level can be adjusted by removing the air.

Further, the pair of floating parts 250 are coated with a photocatalyst on the surface thereof, so that contaminants such as algae and lake faucets stick to the surface of the floating part to prevent the movement of the hull and prevent the floating part from being contaminated . In this case, the photocatalyst in the self-cleaning (self cleaning) available photocatalyst, if available, without limitation and, TiO 2, ZnO, SnO 2, ZrO 2 SrTiO 3, KTaO 3, ZnSCdSe, GaP, CdTe, MoSe 2, WSe 2 etc. .

Further, the movable alga-removing device according to the present invention may be constructed such that a plurality of movable algae removing units 400 can be arranged in parallel, so that the movable algae removing unit 400 can be fastened to the other floating parts of the movable alga- A unit 251 may be provided. Accordingly, even when a large-capacity algaecure removal operation is required, the movable algae removing devices can be arranged in parallel in two or more and effectively utilized, and the number of the arrangement can be adjusted in accordance with the algae formation range and the size of the device, Two to five movable algae removing units 400 according to the present invention may be disposed.

On the other hand, the power generating section 260 includes a traveling motor (not shown), a reduction gear (not shown) directly connected to the traveling motor, a traveling aberration (not shown) rotated by being connected to the reduction gear, And a safety cover (not shown) covering and covering the outside of the aberration. These power generating portions may be provided symmetrically on both sides of the ship.

The control unit 270 is a control panel for supplying electric power to the movable algae removing device of the present invention by receiving power from the outside and performing electrical control, and in particular, for controlling the on / off control of the coagulant input unit, the fine bubble generating unit and the scraper unit And controls the operation of the mobile algaecide device. In order to control the ratio of the coagulant introduced into the coagulant feeder, the control unit includes an interface unit for receiving the input rate of the chemical agent from the controller and correspondingly supplying the coagulant to the coagulant feed pump 123 It is preferable to be configured to be able to control.

The operation of the movable alga-removing device according to the present invention having such a configuration will be briefly described.

The moving algaecide device according to the present invention travels from right to left when the flow of water proceeds from left to right, and finally collects the floated sludge (S) on the basis of the flow of water to the sludge hopper part (230). That is, when the movable algae removing device is running and the coagulant is injected into the lake from the coagulant input unit 120, it grows into an ion carrier while being combined with sludge such as nitrogen, phosphorus, or other suspended substances (SS) And is floated up to the upper portion of the microscope trap generated by the bubble generator 130.

When the motor 211 of the scraper unit 210 is operated, the scrapers 216 move along the chain 214 together with the moving pieces 215 to move the sludge floated above the lake to the sludge hopper unit 230 And the sludge collected in the sludge hopper unit 230 is dehydrated and then pulverized.

According to the present embodiment having such a structure and operation, it is possible to quickly and efficiently remove ebb and flow generated in euphorized rivers or rivers, thereby securing high quality water resources and creating comfortable and pleasant water- .

In this case, algae and sediment sludge settled at the bottom of the lake are re-leached when the anaerobic environment re- leases phosphorus (P), and eutrophication Speed operation. Further, in order to improve the quality of the lake water, a method of circulating the lake water into the lake water treatment apparatus is applied to the treatment apparatus outside the lake, but the treatment time is long and the power demand for water circulation is large and the economical efficiency is low .

However, since the portable algaecide device of the present invention can alleviate the algae generated in the lake and improve the water quality, unlike the existing technology, the water quality improvement effect is also excellent.

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 invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

110: Hull 120: Coagulant input unit
121: chemical tank 122: flocculant line
123: coagulant feed pump 130: fine bubble generator
131: Circulation pump 132: Circulation piping
133: water supply unit 134: injector unit
135: intake valve 136: air supply unit
137: Collision plate 138: Chamber unit
139: bubble jet unit 140:
141: inlet 142: guide member
143: discharge port 210: scraper unit
211: motor 212: drive shaft
213: slave shaft 214: chain
215: moving piece 216: scraper
217: ascending / descending rail 218: roller
219: Bracket 220: Fixing member
230: sludge hopper part 250: a pair of floating parts
260: power generating unit 270:
280: Dewatering section 290: Sludge storage tank
300: direction key 400: movable algae removing unit

Claims (8)

A hull traveling along an appeal; A coagulant input unit provided at a front end of the hull to inject a coagulant into the lake and form a dissolved material of lake water into particulate sludge; A fine bubble generator disposed at a rear end of the coagulant injecting unit to generate fine bubbles to float the particulate sludge to the upper part of the lake; A scraper unit for collecting the particulate sludge floated by the bubbles generated in the fine bubble generator while moving the bubble; A sludge hopper for storing the particulate sludge collected by the scraper unit; A pair of lifting portions disposed on both sides of the hull so as to extend along the longitudinal direction of the hull and float the hull to the water surface; And a control unit for controlling the coagulant input unit, the fine bubble generator, and the scraper unit,
The micro bubble generator includes a water supply unit for supplying water through a circulation pump and a circulation pipe; An injector unit formed at the discharge side of the water supply unit and sucking outside air into the circulation pipe; An air supply unit connected to the injector unit and having an intake valve for allowing outside air to be sucked by a pressure difference; A venturi type induction member connected to one side of the injector unit and supplied with a mixed liquid in which air and water discharged from the injector unit are mixed and a flow path of the supplied mixed liquid is increased, A chamber unit provided adjacent to the impingement plate, the impingement plate being disposed inside the impingement plate, the impingement plate being disposed inside the impingement plate; And a bubble spraying unit for spraying fine bubbles formed from the chamber unit into the lake, wherein at least two movable algae removing units are arranged in parallel.
The method according to claim 1,
The chamber unit includes a body having a space formed therein; An inlet connected to a lower end of the main body to allow a mixture of air and water to flow into the main body; An induction member connected to the inlet port and providing a path of the mixed liquid introduced into the inlet port; An impingement plate installed adjacent to the distal end of the guide member to form a fine bubble by collision of the mixed liquid having passed through the mixed liquid guide member; And an outlet through which water containing microbubbles formed by the impingement plate is connected to one side of the upper portion of the main body.
The method according to claim 1,
Wherein the sludge hopper portion is formed in a rectangular shape along an inner edge of the pair of flotation portions, and a flow passage through which the lake water passes is formed inside the sludge hopper portion, the front and rear surfaces of the sludge hopper portion are lower than the water level, And the sludge floated by the flow path inside the sludge hopper is disposed in the sludge hopper part by the scraper unit.
The method according to claim 1,
The scraper unit includes a motor; A drive shaft connected to the motor; A slave axis spaced apart from and parallel to the drive shaft along a direction in which the hull is driven; A chain rotatably coupled to the drive shaft and the driven shaft in a closed loop manner; A plurality of moving pieces coupled to the chain and moved along the chain; A scraper coupled to the moving piece and moved together with the moving piece to move the sludge with a large surface area to collect the sludge by the sludge hopper part; A plurality of ascending / descending rails vertically installed on the inner side surfaces of the pair of lifting portions to adjust the height of the scraper unit; A bracket coupled to the plurality of raising and lowering rails and having a roller on one side of which the driving shaft moves along the raising and lowering rail, And a fixing member for fixing the bracket to the elevating and lowering rails.
The method according to claim 1,
Wherein the movable alga-removing device adjusts the water level of the hull by filling the inside of the pair of floating parts with air or water.
The method according to claim 1,
A power generating unit provided at one side of the hull to generate power for driving the hull; And a directional key provided at a rear end of the hull to adjust a running direction of the hull.
The method according to claim 1,
Wherein the pair of floating portions are coated with a photocatalyst on the surface thereof. A mobile algae removing line using the mobile algaecide device of any one of claims 1 to 7.

KR1020160101861A 2016-08-10 2016-08-10 Movable Ship for Removing Algae Using the Microbubbles KR101886649B1 (en)

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PCT/KR2017/005788 WO2018030620A1 (en) 2016-08-10 2017-06-02 Mobile algae removal apparatus using microbubbles

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