KR100778377B1 - Algae remove method and it's system which are using a electrolysis cell in the stagnant water area - Google Patents

Abstract

A method and a system for removing algae are provided to remove the algae without spoiling the beauty of a stagnant water area, by operating the system while all components of the system except a rectifier is immersed in water of the stagnant water area. An electrolytic cell(3) is immersed in water of a treatment water area, wherein the electrolytic cell is formed in a pipe type. A rectifier(6) is used to supply electric power to the electrolytic cell. A floating type scum pump(1) sucks and pumps algae floating on a surface of water and is installed at 1 to 1.5 mm height from water surface. An input unit(2) is connected to an input portion of the electrolytic cell and the scum pump, wherein the input unit transfers the pumped algae to the electrolytic cell.

Description

      Algae remove method and it's system which are using a electrolysis cell in the stagnant water area}

      1 is a schematic diagram showing an application embodiment of the present invention processing system.

      Figure 2 is a plan view showing the rough internal structure of the electrolysis cell applied to the present invention.

      Figure 3 is an elevational view showing the approximate internal structure of the electrolysis cell applied in the present invention.

      4 is a cross-sectional view of an electrode mounted inside an electrolytic cell.

      5 is a configuration diagram of the connection bar.

      6 is a front view showing the structure of the electrode.

      7 is a side view showing the structure of the electrode.

<Explanation of symbols for the main parts of the drawings>

       1: scum pump 2: inlet pipe

       3: electrolytic cell 4: discharge tube

       5: fixing means 6: rectifier

      10: electrolytic cell 11: inlet

      12: outlet 13: Hurenji

      14: opening and closing cover 20: electrode

      21: fixing frame 31, 32: busbar

     The present invention relates to a method and system for removing algae using OH radicals and hypochlorite ions generated by electrolysis by fixing an electrolysis cell in water, and in particular, an artificial river such as Cheonggyecheon or a pond of a golf course ( The present invention relates to a method and system for removing algae that can be suitably used in identity waters that cannot be treated externally.

     At present, algae growing in the waters of this identity breed largely when the vertical movement of water is active in spring and autumn turn-overs, and it causes a lot of aesthetic problems when there are many viewing or using populations, especially in golf courses. Since fertilizer is mainly used to nourish the grass, nutrients in the fertilizer are introduced into the pond to maximize the growth of algae.

     Therefore, currently used methods for removing algae include physical treatment using a pressure-induced flotation method (DAF) and chemical treatment using chemicals injecting ozone or chlorine.

     Among them, the physical treatment method is to install a treatment tank for pressurized flotation outside the artificial river or pond, which is treated water, to remove or kill algae, and to circulate it again. The exposure to the outside has a problem of adversely affecting the visitor or users, and the chemical method using the chemicals has an excellent effect on removing algae, but at the same time kills other harmless organisms, thereby adversely affecting the environmental ecosystem. There is a problem.

      On the other hand, there is a method such as dredging in order to block the supply of nutrients necessary for the growth of algae, but it is not feasible as a fundamental inhibition method of algae growing even at 0.2㎍ / L.

      In addition, the most primitive method or the ocher spreading method, which is a typical method for removing algae, is not only a temporary effect in spite of the high cost of chemicals required to apply the loess, but also the accumulated loess spread in the pond It has two drawbacks that require dredging work periodically.

     Therefore, the present invention is not economical because it does not require a special drug without the input of a special drug without impairing the aesthetics, and does not require a secondary treatment according to the input of the drug, economical, can suppress the reproduction of algae as well as prevent the production of algae itself. It is to provide a method and system that can solve all the problems of the prior art.

     To this end, the present invention is the electrolysis by inhaling the algae growing on the surface of the water while the electrolysis cell consisting of the pipe-type to support a predetermined depth in the water of the treated water to pass through the supported electrolysis cell continuously Direct treatment with secondary oxides (OH Radicals) generated in the inner shell of the cell and indirect treatment through diffusion to the entire surface of the treated area is enabled.

     Hereinafter, the configuration of the present invention will be described in more detail with reference to the accompanying drawings.

     As shown in FIG. 1, the algae removal method of the present invention supports an electrolysis cell to a predetermined depth in the water of the treated water, and removes the algae floating on the water surface of the treated water in the water and continuously into the electrolysis cell. By passing through the pumping can be processed directly or indirectly by chemical substances (OH Radical and hypochlorite ions) generated instantaneously during the electrolysis reaction in the electrolysis cell.

     At this time, the treated water from which the algae is removed while passing through the electrolysis cell is uniformly discharged to the water surface of the treated water so that the secondary oxide OH radical and hypochlorite ions contained in the discharged water are diffused to the whole surface of the treated water. By doing so, it is possible to obtain an indirect algae removal effect in the treated water.

     Therefore, the present invention treatment system required for algae removal in the above-described method

An electrolysis cell 3 supported in the water of the treated water, a rectifier 6 for supplying DC power to induce an electrolysis reaction in the developed cracking cell 3, and floating on the water surface of the treated water Floating scum pump (1) for sucking and pumping the algae, and connected between the inlet of the electrolysis cell (3) and the scum pump (1) to transfer the pumped algae to the electrolysis cell (3) It consists of an inlet pipe (2) to be introduced.

At this time, the rectifier 6, which is the power supply device, is provided outside of the treatment water. Since the rectifier applied to the treatment system of the present invention uses a very small capacity of 20 A / 35 V, the rectifier 6 is very small. It will cost a lot of land.

     That is, it can be provided in a building in a golf course or artificial river, and if there is no building, even if installed in the basement outside, a large aesthetic problem does not occur.

     In addition, the scum pump (1) in the case of the algae generated in the water mainly propagates on the water surface through which sunlight is transmitted, so that the installation of the algae in the range of the transmission of sunlight, that is, the depth of the water surface 1 ~ 1.5m Effective pumping is possible, and the scum pump 1 may be a conventional one commonly provided on the market.

     In addition, the outlet of the electrolysis cell (3) is connected to the discharge pipe 4 for discharging the discharge water from which the algae has been removed into the treatment water, wherein the discharge pipe 4 is uniformly discharged to the upper side of the treatment water A plurality of discharge water discharge holes 4a are formed at regular intervals, and secondary oxides (OH radicals and hypochlorite ions) generated during electrolysis by being disposed across the treatment water at a depth of 1 to 1.5 m from the treatment water. It is to be able to spread uniformly throughout the treated water.

      At this time, the electrolysis cell (3), scum pump (1), discharge pipe (4) is to be installed so that the flow is not possible at a specific depth of the water treatment area using a variety of fixing means (5).

      That is, in the case of the electrolysis cell 3, the fixing means 5 can be formed in such a manner as to form the foundation ground by simple groundwork at the lower end of the treated water, and the scum pump 1, the discharge pipe ( In the case of 4), it is sufficient to form the fixing means 5 in such a way that the anchor or the weight is hung and anchored to the lower end of the treated water.

      2-7 will be described in more detail with respect to the electrolysis cell 3, which is one of the components of the system of the present invention.

     First, as shown in FIGS. 2 to 4, the electrolysis cell 3 has an inlet portion 11 and an outlet portion 12 formed at portions corresponding to each other in front and rear to have a flow direction of the fluid. In the interior of the electrolytic cell 10 made of a conduit type, a plurality of electrodes 20 having a mesh form are arranged in the same horizontal line at a predetermined distance from the front to the rear of the electrolytic cell 10. It is mounted so that the fluid is continuously passed in the order in which the electrodes are arranged.

    At this time, the electrolytic cell 10 has a flange 13 is coupled to the inlet 11 and the outlet 12 to be installed by connecting to the pipe of the existing facility using the flange 13, such a flange The formation of (13) can be connected in series with another electrolytic cell so that various installations can be made according to the conditions of the installation space.

    In addition, the electrolytic cell 10 is provided with a removable opening and closing cover 14 is removable to facilitate the replacement of the electrode 20.

    On the other hand, the electrode 20 used in the present invention to increase the reactivity by using an insoluble electrode coated with a metal oxide coating layer of titanium, such as iridium, ruthenium, platinum, and the mesh range of the electrode 20 is (3 * 6 ) To (6 * 12) to ensure efficient movement, dispersion and diffusion of the fluid.

    That is, if the mesh range of the electrode is less than (3 * 6), the fluid has a large frictional resistance with the electrode, so that the fluid flowing through the electrode does not flow properly, and the residence time in the electrolytic cell becomes too long. In the mesh range of (6 * 12) or more, the flow of the fluid is so fast that it is difficult to disperse and diffuse to the electrode, thereby preventing the effective electrode reaction.

    On the other hand, the electrode 20 is fixed to any one of the two bus bars 31, 32 integrally formed so as to extend from the front to the rear of the electrolytic cell 10 is applied to the bus bars 31, 32 Depending on the type of electrode, it is to have a polarity of the cathode or the anode, respectively.

    That is, when the positive electrode flows to one side of the busbar 31, the electrodes 20 fixed thereto are all positively polarized, and all of the fixed busbars 32 are negatively polarized.

    Therefore, it is not necessary to connect a wire for each electrode 20 to have a polarity.

    To this end, the bus bars 31 and 32 are formed with a plurality of electrode fixing means 31a and 32a for coupling and fixing the electrodes 20 at predetermined intervals, as shown in FIG. It can be easily arranged in the same horizontal plane, the wire fixing means (31b, 32b) for supply of electricity to one side is formed so that the wire is connected, the connected wire (not shown) is a power source Only two terminals (not shown) for supply are to be drawn out of the electrolytic cell.

     In this case, the positions of the electrode fixing means 31a and 32a respectively formed on the two busbars 31 and 32 are formed so as to cross one by one without overlapping each other so that the cathode and the anode can be arranged to cross once. It is to be able to induce a uniform electrode reaction by the negative electrode and the positive electrode in the electrolytic cell 10 with respect to the continuous flow of.

     In addition, the electrode connecting means 31a, 32a and the wire fixing means 31b, 32b can be formed in a variety of known forms, but in the present invention, in consideration of ease of manufacture and ease of installation work, It is formed in the form so that the electrode 20 can be fixed by a bolt tightening method, for this purpose the lower side of the busbar 31, 32 to the electrode 20, as shown in Figs. It is to form a fixing frame 21 having a bent surface 21a so as to be in contact with each other, and a hole 21b for inserting the bolt 16 may be formed in the bending surface 21a of the fixing frame 21.

    On the other hand, the bus bar is made of a conductor to enable the flow of electricity, in particular, it is preferable to be protected from various corrosion by applying it as an insoluble catalyst as possible titanium support, not a general copper metal.

    In addition, the electrode 20 is inserted and inserted into the electrolytic cell 10. As shown in FIG. 3, both side ends of the electrode 20 are protruded surfaces formed on both sides of the inner surface of the electrolytic cell 10. By being in close contact with (15), it is possible to prevent the flow of the electrode to the flow of the fluid.

    Therefore, in the algae treatment method using the system of the present invention configured as described above, the algae breeding in the water surface layer of the treated water is sucked by the floating scum pump 1 to be collected and then the algae collected are electrolyzed into cells ( 3) the algae can be directly treated in such a way that the algae is killed by the oxidizing power of organic matter by the OH Radical and the sterilizing power of hypochlorite ions generated inside the electrolysis cell (3). The OH Radical and hypochlorite ions remaining after the reaction are included in the treated water discharged to the outside of the electrolysis cell (3) and diffused throughout the treated water so that the algae growth is suppressed. It becomes possible.

      Hereinafter, the effects of algae removal through the treatment system and method of the present invention will be confirmed through examples.

<Example 1>

      In this experiment, two tanks of 15L were prepared with water taken from a pond of a nearby golf course and divided into a test tank and a control tank. The test tank was equipped with an electrolysis cell to supply electric power at an applied current / voltage of 2A / 10V. Did a comparative analysis without installation.

At this time, the electrode was calcined after adding a certain amount of iridium and tin chloride to 1.5mm titanium and applying it to the electrolytic cell, and using 50 sheets of anode and cathode 10cm ² at intervals of 2cm, respectively, 50ml volume of electrolysis was used. The cells were simulated.

     The analytical method was measured by Chl.a (chlorophyll a) to observe the growth inhibitory effect of algae.

      (Unit: chl.a, ppb)

 Hours     2     4     6     8    10    15    30    40    50    60   Experimental tank     5   4.2    6.4   8.8    5.1    3.2    4.4    6.1    7.9    4.8   Control     5   8.9   13.2   15.0   19.6    21.5   40.6   60.2   65.3   69.0

     As a result of the experiment for 60 days, the concentration of chl.a in the experimental group did not increase, but the control group was found to increase to a considerably high level.

     As a result, the algal inhibitory effect of the electrolysis cell was observed.

  <Example 2>

     In this experiment, in order to observe the control effect when the algae has already grown and eutrophication has been worsened, an electrolysis cell was installed in the control group of Example 1 to observe the killing effect of the algae.

   (Unit: chl.a, ppb)

 Hours     2     4     6     8    10    15     30    40    50    60   Experimental tank   72.5   70.1    59.8    42.5   30.5   4.3    5.3    7.0    4.8    3.1

    As a result of the above experiment, even if the algae breeding was actively progressed after about 10 days can see the killing effect of the birds, and after the killing of algae was confirmed the inhibitory effect of algae production.

    Therefore, the treatment method of the present invention can be treated outside the aesthetic appearance, such as artificial rivers, such as Cheonggyecheon stream or pond of the golf course by operating the constituents of all systems except the rectifier in the state to support the algae. It is a method that can be used appropriately in the absence of identity waters.

   Therefore, it is possible to remove algae in the identity zone without any aesthetic harm.

Claims (6)

delete delete An electrolysis cell 3 consisting of a pipeline type so as to be supported in the water of the treated water, a rectifier 6 for supplying electric power to the developed cracked cell 3, and algae suspended in the water surface of the treated water. Floating scum pump (1) for sucking and pumping, and is connected between the inlet of the electrolysis cell (3) and the scum pump (1) to transfer the pumped algae to the electrolysis cell (3) to be introduced Algae removal system using an electrolysis cell in an identity body consisting of an inlet pipe (2) for      The algae removal system using an electrolysis cell according to claim 3, wherein the scum pump is installed at a depth of 1 to 1.5 m from the water surface.       4. A discharge pipe (4) having a plurality of discharge water discharge holes (4a) is connected to an outlet of the electrolysis cell (3) at predetermined intervals, and the discharge pipe (4) is a water surface of the treated water body. Algae removal system using electrolysis cell in identity water, characterized in that it is installed across the treatment water at a depth of 1 ~ 1.5m from.       The electrolysis cell (3) according to any one of claims 3 to 5, wherein a plurality of electrodes (20) in a mesh form are arranged in a line at predetermined intervals in the pipe-type reactor (10). An algae removal system using an electrolysis cell in an identity body characterized by using the electrode 20 configured to continuously pass through a cross section.

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