KR101487522B1 - The surface layer algicidal device using ultraviolet - Google Patents

Abstract

The present invention relates to a surface layer algicidal device using UV, and more specifically, to an algicidal device which kills algae gathered in a surface layer of a lake which has abundant sunshine for growth and proliferation, the device comprising: a floating means floating on the surface of the lake and moving; an UV algicidal unit equipped on the side or the bottom of the floating means, submerged into the water of the lake, irradiating UV to algae gathered in the surface layer of the lake, and killing algae; an elevating and descending means equipped on a certain point of the floating means, connected with the UV algicidal unit, and controlling the submergence depth of the UV algicidal unit; and a power supply means supplying power to the UV algicidal unit and the elevating and descending means.

Description

[0001] The present invention relates to a surface layer algicidal device using ultraviolet light,

The present invention relates to a surface layer algicidal apparatus using ultraviolet rays, and is characterized in that algae spores in a dormant state are gathered in a surface layer of a lake where sunlight is well irradiated for growth and proliferation, It is possible to delay or eliminate the watery phenomenon such as a greenery or red tide phenomenon by lowering the density of algae in the water by algae crowding in the surface layer before the occurrence of a water bloom phenomenon such as a green tide or a red tide, The present invention relates to a surface tidal flushing apparatus using ultraviolet rays.

The eutrophication of Korean freshwater lakes has rapidly advanced in the late 1980s when the size of livestock and domestic aquaculture has increased, and many lakes have been turned into Puyolyang Lake.

As a result, even in the lake where no cyanobacteria have appeared in the past, in the summer, cyanobacteria emerged, and the lake is being flooded with green, causing damages such as increase of organic matter concentration, odor of tap water and proliferation of toxic cyanobacteria, It is becoming a cause.

Therefore, in order to prevent eutrophication of freshwater lakes, it is necessary to focus not only on sewage disposal but also on management of nonpoint pollution sources such as livestock manure and fertilizer.

The outflow of nutrients from nonpoint sources is concentrated at several times of annual rainfall and is rarely drained during the dry season.

The flow rate of the lake influent is very large at the time of the storm, so once the storm is released from the land, it is impossible to dispose of it.

Therefore, in order to prevent eutrophication, a large effect can not be expected by the construction of the sewage treatment plant. At the same time, comprehensive land management that suppresses the erosion and outflow of the watershed soil should be performed at the same time. There is a need to invest in environmentally friendly agricultural technology development, such as cultivating paddy tillage or making troughs contour lines.

Algae, on the other hand, can be divided into green tides and red tides.

Green algae is a term that refers to the phenomenon that a large number of floating algae (phytoplankton) multiply in the eutrophicated lakes or slow-flowing streams and accumulate on the surface of the water and significantly change their color to green. Red tide is a phenomenon in which plankton propagates in large quantities, And destroys the ecosystem.

The occurrence of such tidal currents can cause aesthetic, public sanitation, ecological and economic impacts, and can be very damaging to the water quality ecosystem.

Therefore, studies for controlling these harmful algae are being actively carried out, and the related reported techniques are classified into physical control, chemical control and biological control.

At this time, as a physical control method, a method of spraying loess and then precipitating into a bottom (bottom) is generally used. In addition, by filtering the algae generated in the water by a filtration device or attaching a fine air generating device to the bottom, There is a method to remove algae by air.

However, algae adsorbed on soils (bottoms) are composed of organic matter, and since the natural environment is not capable of self-purification, the microorganisms in the spoon are decomposed in the anaerobic atmosphere of the spoon, (chemical oxygen demand), which could lead to the possibility of secondary water pollution and destruction of water quality ecosystem.

In addition, when the filtration device is used, since the particle size of the algae is small, there is a problem that the filtration membrane is clogged and economic efficiency is lowered. In addition, when the micro air generation device is used, Therefore, the effect is not so great for algae generated in a wide range of waters.

So far, methods for removing algae have been highly likely to threaten water quality ecosystems or have been very limited.

On the other hand, in the case of chemical control, a method of treating peroxides such as copper sulfate, chlorine, alkali metals or earth metals and hydrogen peroxide is used.

In the case of chemical control, the chemical effect is rapid and the treatment effect is clear. However, in the case of copper sulfate, the biological accumulation by heavy metals can cause a serious problem on the food chain. In the case of overproduction of chlorine, alkali metal or soil metal and hydrogen peroxide, And even in the case of chemical control, the killed algae remain in the water, which is the same problem as the above-mentioned physical method.

In the case of biological control, most of them use natural enemies. This method has a very low control effect of birds, and is delayed and lacks host specificity.

In order to prevent deterioration of water quality and to remove it more efficiently during the process of removing algae, Korean Patent Laid-Open Publication No. 2004-0002370 discloses an ozone generator that efficiently generates ozone, The microbubbles of micro-bubbles are brought into contact with water and brought into contact with each other, thereby ensuring a highly efficient dissolution rate of ozone. By using the strong oxidizing action and the sterilizing action, COD and BOD are reduced by decomposing organic substances in water, In JP-A-2005-0003314, a buoyancy body provided with a nozzle for blowing micro-bubbles is connected to a barge line. In the case of a microbubble ozone, And the barge is placed at a place where the green tide occurs, so that the green tide can be efficiently and simply And proposes a removable algae removal apparatus to remove, in Korea Patent Publication No. 2004-0110350 call to take on a + charge on the surface of the magnetite powder (Fe ₃ O ₄₎ surface nitride dog, electromagnetic naejineun using the magnetic force of the permanent magnet The present invention relates to a greenhouse capable of removing algae in water at high speed, a method for controlling and removing red tide, and a system for removing algae from a surface of algae and magnetite by using a charge to adsorb algae and then attaching permanent magnets or electromagnets A control method and a control system for removing algae using a conveyor belt are proposed.

Korean Patent Laid-Open No. 2004-0002370 discloses an effect of purifying water by exhibiting an oxidizing effect and a germicidal effect by contact with organic matter, green algae, pathogenic bacteria, and the like suspended in water due to the strong oxidizing action and sterilization action of ozone, It has a disadvantage in that it has a limited effect in removing floating matter including a large amount of green algae generated in the water, and is limited in handling only a large amount of algae that are generated on the fresh water lake or sea surface while moving on the water surface.

Korean Patent Laid-Open Publication No. 2005-0003314 discloses a method for floating microbubbles in water to float out of the water surface and simultaneously flooding polluted algae in water, Although it may be effective in a stop system because it takes a long time for microbubbles ejected on the water surface to be raised on the water surface in an environmentally friendly manner, it has a disadvantage in that the efficiency of removing algae is low in a moving situation, , There is a problem that the harmful algae are likely to reproduce again depending on the surrounding environment such as the increase in the concentration of the eutrophication material, the increase in the sunlight and the temperature, and the like.

On the other hand, Korean Patent Publication No. 2004-0110350 discloses a method of surface modification of a magnetite (Fe ₃ O ₄ ) powder surface using an aluminum salt so as to form a positive charge, thereby removing algae by a potential difference method, In order to remove suspended substances or algae contained in water, the removal efficiency is high due to the condition of the pH of the water being neutral or weakly acidic. However, algae produced by the eutrophication are alkalized by the occurrence of ammonia nitrogen, Therefore, even if the algae generated in the water is removed in the same manner as in Korean Patent Laid-Open Publication No. 2005-0003314, the concentration of eutrophic substances contaminated in the water and the surrounding There is a high likelihood of re-emergence of algae due to environmental changes such as temperature and sunlight irradiation Has a problem.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for algae spores which are clustered in the surface layer of a lake- The present invention has as its object to provide a surface-layer algae-killing apparatus using ultraviolet rays capable of delaying or eliminating the phenomenon of water fl ow caused by water.

In addition, it is possible to prevent secondary contamination due to settling decay of algae by drowning algae spores in dormant state by using ultraviolet rays, and to provide an environmentally friendly surface layer algae algae device without using chemicals such as algae flocculants For other purposes.

In addition, it is possible to carry out efficient algae control by automatically moving the kerosene to the waters where the algae are massively crowded through the means of measuring the birds and the navigation, and applying the self power generation system including the photovoltaic power generation device to alleviate the long- Another object of the present invention is to provide a surface-layer algae-killing apparatus using ultraviolet rays that can reduce manufacturing cost, maintenance and repair costs.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to accomplish the above objects, the present invention provides a tidal device for tidal algae crowding on a surface layer of a lake with abundant sunshine for growth and proliferation, a floating means for floating and moving on the water surface of the lake, An ultraviolet ray irradiating unit provided at a lower portion of the ultraviolet ray irradiating unit and irradiating ultraviolet rays to the algae that are submerged in the water surface layer of the lake, Up and down means for adjusting the diving depth of the ultraviolet ray shielding portion and power supply means for supplying power to the ultraviolet ray shielding portion and the lifting means.

Preferably, the ultraviolet lamp module may include a module holder for fixing the ultraviolet lamp module to the inside of the housing. Preferably, the ultraviolet ray shielding part has a predetermined shape having an inlet port and an outlet port at both ends thereof, At least one ultraviolet lamp module including at least one ultraviolet lamp and a quartz tube enclosing the ultraviolet lamp, the ultraviolet lamp being provided inside the housing and irradiating ultraviolet rays to the surface layer water flowing through the inlet, An impeller or a water jet provided inside the outlet of the housing for sucking surface water into the inlet and discharging the water to the outlet, and a controller for controlling the ultraviolet lamp and the impeller or the water jet, Thrust generated by May be moved by the pressure can SAT output by the water jet.

Preferably, the inlet is provided with a device for generating bubbles or ozone (O ₃ ).

Preferably, the outer surface of the quartz tube is coated with a titanium dioxide photocatalyst in the form of a thin film to prevent foreign matter from adhering to the outer surface of the quartz tube. The titanium dioxide photocatalyst is coated on the outer surface of the quartz tube, Is not more than 15%.

Preferably, a cleaning means for removing foreign matter adhering to the outer surface of the quartz tube may be provided in the housing.

Preferably, the inflow port is provided with a blocking net or a cap-like inflow preventing cap for preventing inflow of floating matters present in the water surface or water of the lake.

Preferably, navigation means is provided on the upper part of the floating means to move the floating means to a water-gathering region where algae are clustered. The navigation is divided into a plurality of algae, The floating means can be moved.

The present invention has the following excellent effects.

First, dormant bird spores clustered in the surface layer of the lake with abundant sunshine for growth and proliferation are irradiated with ultraviolet rays to reduce the density of algae in the water, thereby delaying or eliminating the watery phenomenon caused by the green or red tide.

In addition, by using the ultraviolet rays to alleviate dormant algae spores, it is possible to prevent secondary contamination due to settling and decay of the algae, and environment-friendly by using no chemicals such as algae flocculants.

In addition, it is possible to carry out efficient algae control by automatically moving the kerosene to the waters where the algae are massively crowded through the means of measuring the birds and the navigation, and applying the self power generation system including the photovoltaic power generation device to alleviate the long- And it has an excellent effect of reducing manufacturing cost, maintenance and repair cost.

FIG. 1 is a perspective view showing the overall configuration of a surface layer alga resorption apparatus using ultraviolet rays according to an embodiment of the present invention. FIG.
FIG. 2 is a partially sectional perspective view showing the entire configuration of the ultraviolet ray shielding part shown in FIG. 1. FIG.
FIG. 3 is a perspective view showing the overall configuration of a surface layer alga resorption apparatus using ultraviolet rays according to another embodiment of the present invention. FIG.

The term used in the present invention is a general term that is widely used at present. However, in some cases, there is a term selected arbitrarily by the applicant. In this case, the term used in the present invention It is necessary to understand the meaning.

Hereinafter, the technical structure of the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

FIG. 1 is a perspective view showing the overall structure of a surface layer alga-tidal device using ultraviolet rays according to an embodiment of the present invention, and FIG. 2 is a partial cross-sectional perspective view showing the entire configuration of the ultraviolet ray- And FIG. 3 is a perspective view showing the entire configuration of a surface layer algae-killing apparatus using ultraviolet rays according to another embodiment of the present invention.

Referring to FIGS. 1 and 2, the ultraviolet ultrasound-based surface tidal flushing apparatus 100 includes a floating unit 110 that floats and moves on the surface of a lake.

In this case, the floating means 110 may be various means having buoyancy. However, in an embodiment of the present invention, as shown in FIG. 1, An upper plate 112 provided on the upper portion of the buoyant body 111 and a guardrail 113 provided on the upper portion of the upper plate 112.

At this time, the buoyant body 111 can be made of various kinds of buoyant body including polystyrene or a pipe having a certain length sealed at both ends.

Meanwhile, in the surface layer alga killing device 100 using ultraviolet rays according to an embodiment of the present invention, the ultraviolet ray shielding part 120 is provided on a side surface or a lower side of the floating means 110.

Hereinafter, the ultraviolet ray irradiating unit 120 is configured to irradiate ultraviolet rays to algae that are submerged in the lake water and are clustered in the surface layer of the lake, The jaw 120 will be described in detail.

The ultraviolet ray irradiating unit 120 includes a housing 123 having a tubular structure having an inlet 121 and an outlet 122 formed at both ends of the ultraviolet ray irradiating unit 120 so that surface water containing algae can pass therethrough.

At this time, the housing 123 may be made of reinforced plastic, aluminum or an aluminum alloy to improve corrosion resistance and durability, but it is not necessarily limited thereto, and various materials having corrosion resistance and durability can be used.

2, the housing 123 may have a variety of tube structures. However, in the embodiments of the present invention, the housing 123 may have a structure in which the surface water flowing through one inlet 121 has a constant length Through the circular pipe, and then discharged through one outlet 122 again.

The inflow port 121 is provided with a floating inflow preventing cap having a predetermined shape for preventing the float present in the water surface or the water of the lake from flowing into the inside of the housing 123 through the inflow opening 121 Is provided.

In this case, the cap may be formed in various shapes. In the present invention, in the form of a mesh provided between the blocking net 128 and the inlet 121 to be described later, Thereby preventing the flow of the surface water from flowing into the inside of the housing 123.

Also, the inlet 121, the air bubbles or ozone (O ₃₎ generator (not shown) there is this time, the reason for having the bubble generating device is the housing (123 a bubbling through the bubble generator comprising So that ultraviolet rays irradiated by the ultraviolet lamp module 124 to be described later are irregularly reflected to improve the killing efficiency of algae.

In addition, the reason for having the ozone (O ₃₎ generator is produced by the reaction of the ultraviolet light emitted by the ozone (O ₃₎ and the UV lamp module 124 generated by the ozone (O ₃₎ generator This is to effectively alleviate algae present in surface waters by OH radicals.

2, the ultraviolet ultraviolet-based surface layer alga resuscitation apparatus 100 according to an embodiment of the present invention may include an ultraviolet-absorbing surface layer alga resuscitation apparatus 100 for preventing ultraviolet rays from flowing into the inlet 121, A blocking network 128 is provided.

1 and 2, when the floating unit 110 is moved, the ultraviolet ray irradiating unit 120 may irradiate the ultraviolet ray irradiated from the ultraviolet ray irradiating unit 120, In order to minimize the resistance to the received water, the cone is formed in a conical shape, and the vertex of the cone is positioned parallel to the moving direction of the floating means 110.

In the interior of the housing 123, more specifically, each of the four circular pipes, an ultraviolet lamp for irradiating ultraviolet rays to the surface layer water flowing through the inlet 121 to cool the algae, And an ultraviolet lamp module 124 composed of a quartz tube enclosing the ultraviolet lamp module.

At this time, the ultraviolet lamp and the quartz tube can be various commercially available ultraviolet lamps and quartz tubes.

However, in an embodiment of the present invention, a titanium dioxide (TiO ₂ ) photocatalyst in the form of a thin film is coated on the outer surface of the quartz tube to prevent foreign matter from adhering to the outer surface of the quartz tube, (TiO ₂ ) photocatalyst can be coated within a wide range, but it is preferable that the coating is such that the shielding ratio of the ultraviolet ray irradiated from the ultraviolet lamp is 15% or less.

The ultraviolet lamp module 124 may be fixed to the inside of the housing 123 through various methods. However, in an embodiment of the present invention, the ultraviolet lamp module 124 may include a module holder The UV lamp module 124 is stably fixed to the inside of the housing 123 through the UV lamp module 124.

As shown in FIG. 2, the ultraviolet ray irradiating unit 120 includes a cleaning unit 127 for removing foreign matter adhering to the outer surface of the quartz tube.

At this time, the cleaning unit 127 is closely attached to the outer surface of the quartz tube, and horizontally reciprocates along the outer surface of the quartz tube to remove foreign substances adhering to the outer surface of the quartz tube.

Meanwhile, in the surface layer alga killing apparatus 100 using ultraviolet rays according to an embodiment of the present invention, an impeller 125 is provided inside the outlet 122 of the housing 123.

The impeller 125 sucks the surface water toward the inlet 121 and discharges the water to the outlet 122. The impeller 125 is driven by the thrust generated by the rotation of the impeller 125 And moves the floating unit 110.

In the embodiment of the present invention, the floating unit 110 can be moved by using the impeller 125 as shown in FIG. 2. However, the present invention is not limited thereto. In addition to the above-described impeller 125 method, a water jet method may also be used.

The surface layer alga killing device 100 using ultraviolet rays according to an embodiment of the present invention includes a controller 126 for controlling the ultraviolet lamp and the impeller 125 described above, The upper plate 112 and the upper plate 112, as shown in FIG.

The control unit 126 controls the operation state of the ultraviolet lamp and the impeller 125 and the controller 126 also controls the operation of the cleaning unit 127.

The surface layer alga killing device 100 using ultraviolet rays according to an embodiment of the present invention is provided in a certain portion of the floating means 110 and is connected to the ultraviolet ray irradiating part 120, Down means (130) for adjusting the diving depth of the water.

In this case, the lifting and lowering means 130 may use various means including a hydraulic cylinder or various stretching multi-stage members. In an embodiment of the present invention, more specifically, the lifting and lowering means 130 may include, A lifting bar 132 which is fixed to the upper portion of the housing 123 and has a plurality of fastening holes 131 and a lifting bar 132 for lifting the diving depth of the ultraviolet lifting part 120 Shaped fixing pin 133 which surrounds the guard rail 113 and passes through the fastening hole 131 in a state in which the guide rail 113 is adjusted.

At this time, a thread is formed at both ends of the fixing pin 1133. A nut 134 is coupled to both ends of the fixing pin 133 passing through the fastening hole 131, Thereby fixing the trough 120 to the guard rail 113.

The surface layer alga killing device 100 using ultraviolet rays according to an embodiment of the present invention effectively submerges the algae through the lifting and lowering means 130 by submerging the ultraviolet ray absorbing part 120 to a depth at which large amounts of algae are collected It can be tanned.

The surface layer alga killing device 100 using ultraviolet rays according to an embodiment of the present invention includes a power supply for supplying power to the ultraviolet ray shielding part 120, the lifting and lowering device 130 and the cleaning device 127 (140).

The power supply unit 140 may include a solar power module or an autogenerator installed on the upper plate 112. The power supply unit 140 may be connected to a power supply unit separately provided on the shore and connected to the ultraviolet ray irradiator 120 ), The lifting means 130 and the cleaning means 127, as shown in Fig.

In the surface layer alga killing apparatus 100 using ultraviolet rays according to an embodiment of the present invention, a navigation 150 is provided on the upper part of the floating unit 110, that is, the upper plate 112.

At this time, the navigation unit 150 automatically divides the lake into the area where the algae are crowded in a large amount according to the algae cluster status information transmitted from the algae measuring unit (not shown) installed.

1, the ultraviolet ultraviolet-based surface alga resuscitation apparatus 100 according to an embodiment of the present invention includes the ultraviolet ray shielding unit 120 fixed or removable to the floating unit 110 Birds that cluster in surface water can be killed.

In addition, as shown in FIG. 3, the surface-layer alga salvage apparatus 200 using ultraviolet rays according to another embodiment of the present invention includes a plurality of boats or barge lines including water- At least one trough 120 may be attached to algae that are clustered in surface waters.

As a result, the surface layer algae culturing apparatus using ultraviolet rays according to the embodiments of the present invention is capable of alleviating sunlight by irradiating ultraviolet rays to dormant algae sprouts clustered in the surface layer of the lake with abundant sunshine for growth and proliferation through the above- The density of algae in the water can be lowered to delay or eliminate the watery phenomenon caused by the green or red tide.

In addition, by using the ultraviolet rays to alleviate dormant algae spores, it is possible to prevent secondary contamination due to settling and decay of the algae, and environment-friendly by using no chemicals such as algae flocculants.

In addition, it is possible to carry out efficient algae control by automatically moving the kerosene to the waters where the algae are massively crowded through the means of measuring the birds and the navigation, and applying the self power generation system including the photovoltaic power generation device to alleviate the long- And it has an excellent effect of reducing manufacturing cost, maintenance and repair cost.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Various changes and modifications may be made by those skilled in the art.

100: Surface layer algae-removing device using ultraviolet rays according to an embodiment of the present invention
110: Floating means
111: Buoyant body
112: upper plate
113: Guard rail
120: ultraviolet ray
121: inlet
122: Outlet
123: housing
124: UV lamp module
125: Impeller
126:
127: cleaning means
128:
130: Up / down means
131: fastening hole
132: win / drop bar
133: Fixing pin
134: Nuts
140: Power supply means
150: Navigation
200: Surface layer algae-removing device using ultraviolet ray according to another embodiment of the present invention

Claims (8)

CLAIMS 1. A tidal device for killing algae crowding on the surface of a lake with abundant sunshine for growth and proliferation,
A floating means (110) floating on the surface of the lake;
An ultraviolet ray irradiating part 120 provided on a side surface or a lower part of the floating means 110 for submerging ultraviolet rays to algae that are submerged in the lake water and are clustered in the surface layer of the lake;
A lifting and lowering means 130 provided at a predetermined portion of the floating means 110 and connected to the ultraviolet ray irradiating unit 120 for adjusting a diving depth of the ultraviolet ray irradiating unit 120; And
And power supply means (140) for supplying power to the ultraviolet ray irradiator and the raising and lowering means,
The ultraviolet ray shielding part 120:
A housing 123 having a tubular structure of a predetermined shape and having an inlet 121 and an outlet 122 at both ends thereof to allow the surface water containing algae to pass therethrough;
At least one ultraviolet lamp module 124 (see FIG. 1), which is composed of a UV lamp for irradiating ultraviolet rays to the surface layer water flowing into the housing 123 through the inlet 121 and for quenching algae, and a quartz tube for enclosing the ultraviolet lamp, );
An impeller 125 or a water jet provided inside the outlet 122 of the housing 123 for discharging the surface water to the inlet 121 and discharging the surface water to the outlet 122; And a controller 126 for controlling the ultraviolet lamp and the impeller 125 or the water jet, and the floating means 110 may include a thrust generated by the impeller 125 or a pressurized water discharged from the water jet Wherein the ultraviolet light is transmitted by the ultraviolet light.
The method according to claim 1,
And a module holder for fixing the ultraviolet lamp module to the inside of the housing.
The method according to claim 1,
Wherein the inflow port is provided with a bubble or ozone (O ₃ ) generating device.
The method according to claim 1,
The outer surface of the quartz tube is coated with a titanium dioxide photocatalyst in the form of a thin film to prevent foreign matter from adhering to the outer surface of the quartz tube,
Wherein the titanium dioxide photocatalyst is coated so that the shielding rate of ultraviolet rays irradiated from the ultraviolet lamp is 15% or less.
The method according to claim 1,
Wherein the housing is provided with a cleaning means (127) for removing foreign matter adhering to the outer surface of the quartz tube.
The method according to claim 1,
Wherein the inflow port is provided with a blocking net (128) for preventing inflow of floating matters present in the water surface or water of the lake, or a floating inflow preventing cap having a predetermined shape.
The method according to claim 1,
A navigation device 150 is installed on the upper portion of the floating means to move the floating means to a water pool where algae are clustered. The navigation device 150 is configured to divide the lake into a plurality of algae, Wherein the floating means is moved in accordance with the ultraviolet light. delete

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