KR101886648B1

KR101886648B1 - Movable Ship for Removing Algae Using the Microbubbles Haveing Positive charge

Info

Publication number: KR101886648B1
Application number: KR1020160101844A
Authority: KR
Inventors: 김종국
Original assignee: 주식회사 에네트
Priority date: 2016-08-10
Filing date: 2016-08-10
Publication date: 2018-08-10
Also published as: KR20180017662A; WO2018030621A1

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a portable algae removing device using positive microbubbles, and more particularly, to an apparatus for removing microbubbles by using an ultra-miniature microbubble generator, The size of the vessel is smaller than that of a conventional algae removing vessel which requires a large-capacity pressurizing tank and a compressor, and the weight is reduced to improve mobility. In addition, in forming fine bubbles, In this way, positive positive bubbles can be formed at low pressure by using a high-speed collision method of water and air with positively-formed positively charged electrons so that the contact efficiency and the levitation force And effectively treats the pollutants in a short time, and concentrates the suspended matter floating on the fine bubbles to a high concentration Thereby reducing the amount of sludge generated.

Description

[0001] The present invention relates to a mobile algae removal line using positive microbubbles,

The present invention relates to a portable algae removing device using positive microbubbles, and more particularly, to a portable algae removing device using positive microbubbles, and more particularly, The present invention relates to a portable algae removing apparatus using bubbles.

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.

On the other hand, according to the collision theory of particles in water, it is known that the most important factor for removing particles by injecting microbubbles is the electrostatic property and size of the two factors, and the electrostatic characteristic is more important.

Most of the particles in water are negatively charged, and the microbubbles injected in the conventional water treatment method also have a negative charge. Therefore, conventionally, there has been a problem that the particles must be collided with negatively charged bubbles and negatively charged particles, and thus the efficiency must be reduced or the pretreatment must be made excessive.

In addition, it has been known that, in the floatation method, fine bubbles having a positive charge are artificially formed by using a surface adsorbent, which is a chemical, to increase the efficiency of water treatment. However, the use of a chemical such as surface adsorbent in drinking water or natural water, And not only the safety is deteriorated but also the processing cost is high.

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 positive microbubbles.

In order to achieve the above object, an embodiment of the present invention provides a hull comprising: a hull traveling along a lake; A fine bubble generator disposed at a front end of the hull to generate fine bubbles having a positive charge to float the particulate sludge to the upper part of the lake; A scraper unit for collecting the particulate sludge floated by the fine bubbles having positive charge generated in the fine bubble generating unit while moving it; 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 controller for controlling the micro-bubble generator and the scraper unit, wherein the micro-bubble generator includes a water supply unit having a circulation pump for supplying water and a circulation pipe; An electrolytic unit formed on the discharge side of the water supply unit and provided with an anode electrode plate and a cathode electrode plate in an inner space to electrolyze water supplied from the water supply unit to generate positive charged water; An injector unit formed on a discharge side of the electrolytic unit for sucking outside air into a circulation pipe extending from the electrolytic unit; 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; The injector unit is supplied with a mixed liquid of air and positive water discharged from the injector unit, and the mixed liquid is collided with an impingement plate or an inner wall of the injector unit to form a positive bubble. A chamber unit for forming the chamber; And a bubble jetting unit that blows the minute bubbles bearing positive charge formed from the chamber unit into the lake.

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 having a positive charge 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; A collision plate disposed adjacent to the distal end of the guide member to form a fine bubble having a positive charge by collision of the mixed liquid having passed through the mixture liquid guide member; And a discharge port connected to one side of the upper portion of the main body for discharging water including minute bubbles having a positive charge formed by the impingement plate.

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 provides an amount of fine bubbles required for the floatation treatment by utilizing the ultra-miniature micro-bubble generator instead of the conventional air compressor driving type. Therefore, The ship is smaller in size than the algae-removing vessel of the present invention, and the weight is reduced to improve the mobility.

Further, in the present invention, in generating minute bubbles, a positive charge is formed in water by using electrolysis so as to increase the adhering force with a foreign substance having a negative charge, and a positive charge water and air are formed by using a high- It is possible to make ultra fine grained bubbles having an average diameter of less than 100 占 퐉 even at a low pressure. Through this, it is possible to effectively treat contaminants in a short time by increasing contact efficiency and lifting force between microbubbles and pollutants without using an adsorbent, It is possible to reduce the amount of sludge generated by concentrating the floated matter floated on the float.

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.
8 is a side schematic view of a portable 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 fine bubble generator disposed at a front end of the hull to generate fine bubbles having a positive charge to float the particulate sludge to the upper part of the lake; A scraper unit for collecting the particulate sludge floated by the fine bubbles having positive charge generated in the fine bubble generating unit while moving it; 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 controller for controlling the micro-bubble generator and the scraper unit, wherein the micro-bubble generator includes a water supply unit having a circulation pump for supplying water and a circulation pipe; An electrolytic unit formed on the discharge side of the water supply unit and provided with an anode electrode plate and a cathode electrode plate in an inner space to electrolyze water supplied from the water supply unit to generate positive charged water; An injector unit formed on a discharge side of the electrolytic unit for sucking outside air into a circulation pipe extending from the electrolytic unit; 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; The injector unit is supplied with a mixed liquid of air and positive water discharged from the injector unit, and the mixed liquid is collided with an impingement plate or an inner wall of the injector unit to form a positive bubble. A chamber unit for forming the chamber; And a bubble jetting unit for jetting the minute bubbles bearing positive charge formed from the chamber unit into the lake.

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 FIG. 8 is a side schematic view of a portable algaecide device according to another embodiment of the present invention. FIG.

The movable algae removing apparatus according to an embodiment of the present invention includes a hull 110, a fine bubble generating unit 130, a scraper unit 210, a sludge hopper unit 230, a pair of lifting units 250, (260) and a control unit (270).

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 fine bubble generator 130 may be disposed at the front end of the hull 110, and the direction key 300 may be disposed at the rear end thereof.

The microbubble generator 130 is disposed at the front end of the ship 110 to flocculate the particulate sludge S flowing into the microbubble generator region together with the microbubbles that are positively charged, Help.

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 because it generates minute bubbles having a positive charge, 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 anode electrode plate 125a and a cathode electrode plate 125b are provided in the internal space of the water supply unit discharge side to electrolyze the water supplied from the water supply unit 133 to generate positive charged water An electrolytic unit (125); An injector unit 134 formed on the discharge side of the electrolytic unit for sucking 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; The injector unit 134 is connected to one side of the injector unit 134 and receives the air discharged from the injector unit and the positive charged water. The supplied air content impinges on the collision plate 137 or the inner wall of the injector unit 134, A chamber unit 138 forming fine bubbles; And a bubble ejection unit 139 for ejecting positive charged microbubbles 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 electrolytic unit 125 includes a plurality of positive electrode plates 125a and a plurality of negative electrode plates 125b in an inner space to which a predetermined amount of water is supplied to supply water to the water by electrolyzing the water supplied from the water supply unit . In this electrolytic unit, a circulation pipe of a water supply unit is connected to one side, and a circulation pipe connected to an injector unit, which will be described later, is connected to the other side.

The positive electrode plate and the negative electrode plate are composed of a plurality of metal plates which are spaced apart from each other at a predetermined interval in parallel to the supply direction of the treatment water and are supplied with voltage from the outside.

In such a cathode electrode plate, a negative electrode is applied from the outside, and the positive electrode is applied to the positive electrode plate from the outside, so that a positive charge is eluted, thereby making fine bubbles with a positive charge. Accordingly, the electrode plates may be made of any one of iron, aluminum, and stainless steel.

That is, when a positive voltage is applied to the positive electrode plate and a negative electrode is applied to the negative electrode plate by applying a voltage from the outside to the positive electrode plate and the negative electrode plate spaced apart from each other by a predetermined distance, So that a positive charge is given to the water.

Accordingly, when the anode plate is formed of a steel material, an electrolytic chemical reaction occurs in the anode plate according to the following reaction formula (1).

[Reaction Scheme 1]

Fe - > Fe < ² ⁺ & ^gt ^; + 2e ^-

Fe ² ⁺ ^- > Fe ³ ⁺ + e ^-

Further, when the anode plate is formed of aluminum, an electrolytic chemical reaction occurs according to the following reaction formula 2 around the anode plate.

[Reaction Scheme 2]

Al ^- &^gt; ³ ⁺ + 3e ^-

When a voltage is applied to the anode electrode plate, metal ions (iron ion and aluminum ion) having positive electric potential are eluted from the electrode plate, and insoluble metal hydroxides (iron hydroxide, aluminum hydroxide, etc.) are produced.

Although the electrolytic unit is illustrated as being installed between the water supply unit and the injector unit, the electrolytic unit is not limited thereto and may be installed between the injector unit and the chamber unit described later.

The injector unit 134 is connected to a circulation pipe 132 extending from the electrolytic unit, and sucks outside air (indicated by a dotted arrow) into the circulation pipe. The injector unit 134 includes a low-power air suction pump, Air may be injected into the inside of the circulation pipe 132. However, in the present invention, the natural suction type is preferably used, and the pressure inside the circulation pipe is lowered 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 positive charged water supplied without power.

The chamber unit 138 crushes the air particles by causing the mixed liquid in which the air sucked through the injector unit 134 and the water to which the positive charge is added to collide with the inner wall W or the impingement plate 137 at high speed (Positive microbubbles) that generate positive charge through turbulence while generating minute bubbles.

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 for introducing a mixed liquid in which air and positive charged water are mixed into the main body; 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 to collide with the mixed liquid which has passed through the mixed liquid guiding member to form fine bubbles having a positive charge; And a discharge port 143 connected to one side of the upper portion of the main body and discharging the liquid including fine bubbles having a positive charge 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 mixed liquid in which air flowing from the circulation pipe and water having positive charge are mixed is connected to the circulation pipe 132 on the side of the circulation pipe 134.

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.

The impingement plate 137 of the chamber unit is disposed adjacent to the mixed liquid guiding member 142 so that the mixed liquid discharged from the end of the mixed liquid guiding member collides with each other to form positive 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. Here, in order to facilitate contact between the air and the water bearing positive charge, 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 into the positive charged water. Then, the water in which the microbubbles bearing the positive charge are dispersed is connected to the upper side of the main body And is dispersed into the capsule through the installed outlet 143.

In the chamber unit, the water having the positive charged fine bubbles discharged at a low pressure of the level of 1.8 kgf / cm ² is pressurized to the atmospheric pressure in the lake water, and the gas over- Promotes the production of minute bubbles.

As shown in FIGS. 7 and 8, the movable algae removing apparatus according to the present invention may further include a flocculant input unit 120 at the front end of the microbubble generator 130 to inject the flocculant 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 must 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 (+).

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 a flocculation line 122 ), 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, So that the flocculated particulate sludge is effectively floated to the upper part of the lake.

In the present invention, the scraper unit 210 is configured to collect and accumulate the particulate sludge that is adhered by fine bubbles having a positive charge generated in the fine bubble generator and floated, so that the height of the scrapers 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. Accordingly, a flow path through which water can pass can be formed inside the movable alga-removing device, whereby the water and the sludge passing through the micro-bubble generating part 130 installed at the front end part float, and the scraper unit 210 and collected in the sludge hopper part 230. [

7 and 8, when the sludge hopper 230 is far from the scraper unit, the sludge hopper 230 may further include a conveying conveyor 231 for conveying the sludge collected by the scraper unit . The sludge collected by the scraper unit may be transferred to the sludge hopper unit while being conveyed while the drainage holes are formed in the upper and lower portions of the sludge conveyor 231 so that the sludge can be conveyed. .

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. .

In addition, a plurality of movable algae removing apparatuses according to the present invention may be provided with a fastening unit (not shown) so that they can be fastened to the other floating parts on the outer side surfaces of the pair of floating parts so as to be arranged in parallel. Accordingly, even when a large-capacity algaecide removal operation is required, a plurality of mobile algae removing devices can be arranged in parallel and effectively utilized. The number of the arrangement can be adjusted according to the algae formation range and the size of the device, ~ 5.

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 being supplied with power from the outside, and electrically controlling the device. In particular, the control unit 270 includes on / off control of the fine bubble generator, scraper unit, And controls the operation of the apparatus. Further, in order to control the addition ratio of the flocculant to the flocculant input unit, the control unit may include an interface unit to receive the input rate of the chemical from the controller, and, in response to the programmed amount of the flocculant, It is preferable to be configured to be able to control the coagulant feed pump 123 of the feeding portion.

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 mobile algae removing device travels and disperses the minute bubbles having positive charge generated in the minute bubbler 130 in the lake, the sludge (foreign matter) having a negative charge in the lake is attached to the minute bubbles And it floats above the lake.

At this time, when the flocculant is selectively injected into the lake from the flocculant input unit 120, the flocculant is grown into an ion carrier having a negative charge while being combined with sludge such as nitrogen, phosphorus, or other floating material SS in the lake, The ion carrier can be attached to the fine bubbles having positive charge to float the sludge more effectively, so that the input amount of the coagulant to be injected can be remarkably reduced.

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 algae removing apparatus of the present invention can remove the algae generated in the lake and improve the separation of the coarse waste and the quality of water, 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 transfer pump 125: electrolytic unit
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 ejection unit
140: main body 141: inlet
142: guide member 143: outlet
210: scraper unit 211: motor
212: drive shaft 213:
214: chain 215: moving piece
216: scraper 217: ascending / descending rail
218: roller 219: bracket
220: fixing member 230: sludge hopper part
231: conveying conveyor 250: a pair of floating portions
260: power generating unit 270:
280: Dewatering section 290: Sludge storage tank
300: Direction key

Claims

A hull traveling along an appeal; A fine bubble generator provided at a front end of the hull to generate fine bubbles having a positive charge and inject the 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 fine bubbles having positive charge generated in the fine bubble generating unit while moving it; 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 controller for controlling the micro 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 electrolytic unit formed on the discharge side of the water supply unit and provided with an anode electrode plate and a cathode electrode plate in an inner space to electrolyze water supplied from the water supply unit to generate positive charged water; An injector unit formed on a discharge side of the electrolytic unit for sucking outside air into a circulation pipe extending from the electrolytic unit; 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 solution in which air discharged from the injector unit and water having a positive charge are mixed to increase the flow rate of the supplied mixed solution and provide a moving path, A chamber unit disposed adjacent to the end of the member and having a collision plate formed therein, the collision plate passing through the mixture liquid guiding member colliding with the collision plate to form micro bubbles having a positive charge; And a bubble jetting unit for jetting the minute bubbles bearing positive charge formed from the chamber unit into the lake.

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 having a positive charge 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; A collision plate disposed adjacent to the distal end of the guide member to form a fine bubble having a positive charge by collision of the mixed liquid having passed through the mixture liquid guide member; And a discharge port through which water containing fine bubbles having a positive charge connected to one side of an upper portion of the main body and formed by the impingement plate is discharged.

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.

The method according to claim 1,
Wherein the cathode electrode plate and the anode electrode plate of the electrolytic unit are selected from the group consisting of iron, aluminum, stainless steel and alloys thereof.

A mobile algae removing line using the mobile algaecide device of any one of claims 1 to 7.