KR101702345B1 - Apparatus and Method for Removing Algae - Google Patents

Abstract

More particularly, the present invention relates to a device for primarily removing solids from algae-containing influent water, a fine bubble generating device, a fine bubble mixing device, and a processing module, And a method of removing algae using the same.
According to the present invention, algae can be flocculated and floated at a higher speed than existing algae removing devices, so that algae can be quickly removed and the treatment time can be saved, which is effective in removing large-volume algae.

Description

Technical Field [0001] The present invention relates to an apparatus and method for removing high-

The present invention relates to a high-speed algae removing apparatus and method using fine bubbles and electrical cohesion, and more particularly, to a solids removing apparatus, a fine bubble generating apparatus, a fine bubble mixing apparatus, and a treatment apparatus for removing solids of algae- Speed algae removing device having a module and a method of removing algae using the same.

Water is an indispensable resource for all human economic, social and cultural activities. However, due to population increase, rapid increase of water consumption due to industrialization, and water pollution caused by environmental pollution, the water shortage situation is getting worse each year.

In the summer when the water temperature rises, reservoirs, lakes, fisheries, offshore waters or running water are also producing green tides or red tides. These algae or red tides will kill not only the fish in the lake or sea farm but also the aquatic plants, which can cause ecological destruction as well as bad smell.

In general, algae phenomenon is caused by eutrophicated lakes or floodplains (phytoplankton) in a slow stream, which are accumulated on the surface of water and change the color of the water remarkably to green. It is known that the cause of the algae phenomenon is adversely affecting aquatic plants by the toxic cyanobacteria. For example, it causes serious problems such as the effects of toxins on human body and livestock, ecological problems caused by ecosystem destruction, fish deficiency due to oxygen deficiency and various kinds of aquatic organisms.

In addition, the red tide phenomenon refers to the phenomenon that the color of the seawater changes in red color due to the proliferation of a large amount of phytoplankton. When the creature causing red tide is caused by the ciliate or diatoms classified as euglena or protozoa The red tide phenomenon has recently been shown widely in the southern coast of Korea, the west sea, and the southern coast of the East Sea, and the red tide creatures are moving from the center of the diatoms to the center of the flagellated tide, Due to this trend, red tide damage is increasing every year.

In recent years, such rust and red tide phenomenon has occurred as a characteristic of wide area, toxicity, and prolongation, and development of technology for solving this is urgently required.

Conventional techniques for solving such phenomenon include a method of adsorbing a green or red tide with electrostatic adsorption power by using a chemical sterilizing method using a chlorine agent or ozone, A filtration method in which a green and a red tide are separated and removed from water, a method of removing algae using microorganisms, an ultrasonic wave, and a tidal line are generally used.

Chemical sterilization methods using chlorine drugs or ozone are considered harmful to humans when used in drinking water sources and agricultural water, and are difficult to use because they are harmful to crops, and recreational activities such as swimming pools are also affected. In addition, chemical agents may adversely affect the natural ecological environment and cause water quality to deteriorate further.

The coagulation sedimentation method using loess is a method in which algae or red algae are removed by adsorbing and aggregating suspended substances (nutrients, fine plankton, etc.) in the water through colloid particles of yellow clay (KR10-1355178). However, when this method is used, some green algae and red algae are removed by mass spraying, but more dissolved oxygen is needed to decompose the rusty red algae that have flocculated under the water due to the yellowing, As the flow of oxygen through the water causes oxygen shortage, eutrophication is accelerated, and ultimately, aquatic plants or microorganisms that require oxygen may cause a dead lake or sea that no longer lives.

The filtration method of the green algae and the red algae using the filter is a physical method of separating the water, the green algae and the red algae by passing the water contaminated by the green algae through the filtration device including the filter and consuming excessive energy It is difficult to use it in a general manner.

In addition, the method of removing algae using microorganisms has the possibility that the introduced microorganism species may destroy or contaminate another ecological environment in order to remove the algae or red tide problem to be removed. In addition, A chemical treatment process for removing residual microorganisms is necessary, and the scale and operation cost are expected to increase.

The ultrasound method has the advantage of removing green algae in an environmentally friendly manner by destroying the air bag of the algae while sinking the algae below the water. On the other hand, it is difficult to use the algae in a large area, It is.

The green tide removing line method has a drawback in that it has a merit of removing the green tide, but it requires a high maintenance cost because the green tide suction and the filtration and collection device are installed and operated on the ship.

Recently, microbubble technology is emerging as a new alternative technology in the field of algae removal. The related patents use microbubbles to keep the water temperature at a low temperature and to supply oxygen to the lower layer of the water while reducing greenhouse (KR10-1196945). This patent is of but reduce the algae prevention and water purification using with the ground and microbubbles, in the micro-bubble generation method has a problem in durability of the size and occurrence of bubbles, merely the use of microbubbles of oxygen (O ₂₎ (DO) is increased through the supply of water. However, there is no solution for the problem of nozzle clogging due to suspended or suspended substances in contaminated water, and in particular, It is difficult to perform the function of purifying the water in the lower part of the water discharged from the upstream side nozzle.

In order to compensate for the disadvantages described above, the purification treatment unit of the water curing treatment type which increases the dissolved oxygen (DO) while maintaining the water surface temperature of the water within a certain water level by using the heat exchange of the geothermal heat and the nano bubble KR10-1361104). However, since the nano bubble supplying unit and the equipment are buried in the ground, the above-mentioned patent has a high initial facility construction cost and is not easy to move after installation of the equipment.

In addition, a new technique for removing green algae is the algae removing device using the potential difference method (KR10-0993009). When an inorganic salt that provides a positive charge and a magnetic powder modified with a polymer are injected into a wastewater or wastewater and shaken, the greenhouse and the suspended material that are negatively charged are magnetized by a potential difference method, Phosphate adsorbed on the surface of the powder and present in an ionic state in the water reacts with the inorganic salt to form an insoluble phosphate which is a suspended substance and is supplied with magnetic force through a permanent magnet or an electromagnet, It is a method to remove substances and phosphates at high speed. However, this method has to supply continuous magnetic powder, and there is a possibility of contamination of water due to the magnetic powder which may exist after the treatment, and there is a troublesome operation in the water to be treated in the reactor.

Accordingly, the present inventors have made intensive efforts to develop an apparatus and method capable of removing algae at a high speed within a certain water level in which algae are generated, and as a result, they have developed a device using microbubbles and electrical coagulation, It was confirmed that the algae could be removed at a very high speed, and the present invention was completed.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a high-speed algae removing device using fine bubbles and electric cohesion.

It is another object of the present invention to provide a method for removing algae using the high-speed algaecide.

In order to accomplish the above object, the present invention provides a solid-substance removing apparatus comprising: (a) a solids remover (71) for primarily removing solids of algae-containing influent water; (b) a fine bubble generator (72) for generating fine bubbles in the algae-containing influent treated in the solids remover; (c) a fine bubble mixing device (73) for mixing the flocculant with the inflow water in which the fine bubbles have been generated; And a processing module (76) for electrically treating the treated water treated in the fine bubble mixing device (73) to cause flocculation and floating, and to separate the fine bubble-containing floating matter and the treated water from each other In the algaecide device, the treatment module (76) comprises: (i) an upper reaction tank (11) in which the substance of the introduced fluid floats and separates; (ii) an inflow path (4) connected to an intermediate portion of the upper reaction tank (11) and through which the fluid flows; (iii) an upper cap 10 coupled with an upper end portion of the upper reaction tank 11; (iv) a first discharge path (1) connected through the lower end surface of the upper cap (10); (v) an inner tube (2) installed inside the upper reaction tank (11); (vi) a first catalyst module (3) installed inside the inner tube (2); (vii) a cyclone (5) mounted at the bottom of the first catalyst module (3); (viii) a lower reactor 12 connected to the lower end of the upper reactor 11; (ix) a second catalyst module (8) installed in the lower reactor (12); (x) a second discharge path (7) coupled through an intermediate surface of the lower reaction tank (12); And (xi) a lower cap (13) coupled to a lower end of the lower reaction tank (12); (A) an upper reaction tank 15 in which substances of the inflow fluid are suspended and separated; (B) an inflow passage (16) connected to an intermediate portion of the upper reaction tank (15) and through which the fluid flows; (C) an upper cap (21) coupled with an upper portion of the upper reaction tank (15); (D) a discharge passage (14) connected through the lower end surface of the upper cap (21); (E) a lower reactor 22 connected to a lower end of the upper reactor 15; (B) an upper catalyst module (18) and a lower catalyst module (19) installed inside the lower reactor (22); And a lower cap (23) coupled to a lower end of the lower reaction tank (22); (i ') an upper reaction tank 100 in which substances of the introduced fluid are suspended and separated; (ii ') an inflow path 93 connected to an intermediate portion of the upper reaction tank 100 and through which the fluid flows; (iii ') an upper cap 98 coupled with an upper portion of the upper reaction vessel 100; (iv ') a first discharge path 91 connected through the lower end surface of the upper cap 98; (v ') an inner tube (92) installed inside the upper reaction tank (100); (vi ') a second discharge path (99) connected to one side of the inner tube (92); (vii ') a conical micro bubble guide 95 installed at the lower end of the inner tube 92; (viii ') a lower reactor 101 connected to the lower end of the upper reactor 100; (ix ') a catalyst module 96 installed inside the lower reaction tank 101; And (x ') a lower cap (102) coupled to a lower end of the lower reaction tank (101); (A) an upper reaction tank 110 in which substances of the inflow fluid are suspended and separated; (B ') an inflow path (105) connected to an intermediate portion of the upper reaction tank (110) and through which the fluid flows; (C ') an upper cap (103) coupled with an upper portion of the upper reaction tank (110); (D ') a first discharge path (104) connected through the lower end surface of the upper cap (103); (ㅁ ') a lower reaction tank 111 connected to a lower end portion of the upper reaction tank 110; (F ') a catalyst module (108) installed inside the lower reactor (111); (G ') a second discharge path 107 coupled through an intermediate surface of the lower reaction tank 111; And a lower cap (112) coupled to a lower end of the lower reaction tank (111). And (A) an upper reaction tank 119 in which substances of the introduced fluid float and are separated; (B) an inflow path (115) connected to an intermediate portion of the upper reaction tank (119) and through which fluid flows; (C) an upper cap (113) coupled with an upper end portion of the upper reaction tank (119); (D) a first discharge passage (114) penetrating through the lower end surface of the upper cap (113); (E) a lower reactor 120 connected to a lower end portion of the upper reactor 119; (F) a second discharge path (117) coupled through an intermediate surface of the lower reaction tank (120); And (G) a separation module having a lower cap (121) coupled to a lower end of the lower reaction tank (120).

The present invention also provides a method of removing algae-containing influent, comprising: (a) removing solids from the algae-containing influent water through an apparatus for primarily removing solids of the algae-containing influent; (b) generating fine bubbles in the algae-containing influent water through the fine bubble generator 72; (c) mixing the fine bubble-containing influent and the flocculant in the fine bubble mixing device 74; And (d) electrically treating the influent mixed with the flocculant in the treatment module (76) to cause flocculation and flocculation, and separating the microbubble-containing float and the treatment water. And a method of removing algae using the removal device.

According to the present invention, algae can be flocculated and floated at a higher speed than existing algae removing devices, so that algae can be quickly removed and the treatment time can be saved, which is effective in removing large-volume algae.

1 is a schematic view showing a configuration of a high-speed algaecide removing device.
2 is a view showing a configuration of a fine bubble generator.
3 is a view showing a configuration of a fine bubble mixing device.
4 is a diagram showing a configuration of a processing module.
5 is a view showing a configuration of a catalyst module.
6 is a diagram showing the process of the first embodiment. Here, A represents the raw water in the algae-containing state before the treatment, B represents the example of the structure of the ultra-high speed algaecide device, and C represents the treated water from which algae have been removed after the treatment.

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.

In one aspect, the present invention relates to a system for removing solids, comprising: (a) a solids remover (71) for primarily removing solids from algae-containing influent water; (b) a fine bubble generator (72) for generating fine bubbles in the algae-containing influent treated in the solids remover; (c) a fine bubble mixing device (73) for mixing the flocculant with the inflow water in which the fine bubbles have been generated; And a processing module (76) for electrically treating the treated water treated in the fine bubble mixing device (73) to cause flocculation and floating, and to separate the fine bubble-containing floating matter and the treated water from each other In the algaecide device, the treatment module (76) comprises: (i) an upper reaction tank (11) in which the substance of the introduced fluid floats and separates; (ii) an inflow path (4) connected to an intermediate portion of the upper reaction tank (11) and through which the fluid flows; (iii) an upper cap 10 coupled with an upper end portion of the upper reaction tank 11; (iv) a first discharge path (1) connected through the lower end surface of the upper cap (10); (v) an inner tube (2) installed inside the upper reaction tank (11); (vi) a first catalyst module (3) installed inside the inner tube (2); (vii) a cyclone (5) mounted at the bottom of the first catalyst module (3); (viii) a lower reactor 12 connected to the lower end of the upper reactor 11; (ix) a second catalyst module (8) installed in the lower reactor (12); (x) a second discharge path (7) coupled through an intermediate surface of the lower reaction tank (12); And (xi) a lower cap (13) coupled to a lower end of the lower reaction tank (12); (A) an upper reaction tank 15 in which substances of the inflow fluid are suspended and separated; (B) an inflow passage (16) connected to an intermediate portion of the upper reaction tank (15) and through which the fluid flows; (C) an upper cap (21) coupled with an upper portion of the upper reaction tank (15); (D) a discharge passage (14) connected through the lower end surface of the upper cap (21); (E) a lower reactor 22 connected to a lower end of the upper reactor 15; (B) an upper catalyst module (18) and a lower catalyst module (19) installed inside the lower reactor (22); And a lower cap (23) coupled to a lower end of the lower reaction tank (22); (i ') an upper reaction tank 100 in which substances of the introduced fluid are suspended and separated; (ii ') an inflow path 93 connected to an intermediate portion of the upper reaction tank 100 and through which the fluid flows; (iii ') an upper cap 98 coupled with an upper portion of the upper reaction vessel 100; (iv ') a first discharge path 91 connected through the lower end surface of the upper cap 98; (v ') an inner tube (92) installed inside the upper reaction tank (100); (vi ') a second discharge path (99) connected to one side of the inner tube (92); (vii ') a conical micro bubble guide 95 installed at the lower end of the inner tube 92; (viii ') a lower reactor 101 connected to the lower end of the upper reactor 100; (ix ') a catalyst module 96 installed inside the lower reaction tank 101; And (x ') a lower cap (102) coupled to a lower end of the lower reaction tank (101); (A) an upper reaction tank 110 in which substances of the inflow fluid are suspended and separated; (B ') an inflow path (105) connected to an intermediate portion of the upper reaction tank (110) and through which the fluid flows; (C ') an upper cap (103) coupled with an upper portion of the upper reaction tank (110); (D ') a first discharge path (104) connected through the lower end surface of the upper cap (103); (ㅁ ') a lower reaction tank 111 connected to a lower end portion of the upper reaction tank 110; (F ') a catalyst module (108) installed inside the lower reactor (111); (G ') a second discharge path 107 coupled through an intermediate surface of the lower reaction tank 111; And a lower cap (112) coupled to a lower end of the lower reaction tank (111). And (A) an upper reaction tank 119 in which substances of the introduced fluid float and are separated; (B) an inflow path (115) connected to an intermediate portion of the upper reaction tank (119) and through which fluid flows; (C) an upper cap (113) coupled with an upper end portion of the upper reaction tank (119); (D) a first discharge passage (114) penetrating through the lower end surface of the upper cap (113); (E) a lower reactor 120 connected to a lower end portion of the upper reactor 119; (F) a second discharge path (117) coupled through an intermediate surface of the lower reaction tank (120); And (G) a separation module having a lower cap (121) coupled to the lower end of the lower reaction tank (120). [0002] The present invention relates to a high- 4 and 5).

In the present invention, the solids removal device 71 is characterized by comprising at least one device selected from a cyclone, a hydrocyclone, a multi-cyclone and a filter.

The cyclone (5) of the composite module feeds down the substances having a lower density in the process of controlling the flow rate of the flow introduced into the process module and the treated process water, and sends the substances having a higher density downward. Through this process, the inner tube 2 mounted in the processing module and the algae to be treated in the lower reaction tank 12 are distributed, resulting in electrical cohesion and floating in each part, and uniform density (Fig. 4A).

In the present invention, the fine bubble generator 72 includes (i) an inflow path 53 through which a fluid flows; (Ii) a pump body 51 connected to the other side of the inflow path 53; (Iii) a gas inlet (60) connected to an upper portion of the inflow passage (53); (Iv) a rotating shaft (61) installed to rotate through the center of the pump body (51); (V) an impeller (52) coupled to one side of the rotating shaft (61); (Vi) a motor (not shown) coupled to the other side of the rotating shaft 61; (B) a bubble jacket 54 coupled to a left upper end of the pump body 51; (Iii) an air damper (58) coupled to a lower inner surface of the bubble jacket (54); (Iii) a discharge pipe (55) connected through the center of the bubble jacket (54); And (x) an outlet 57 connected to one side of the bubble jacket 54 (FIG. 2).

The fine bubble generator 72 further includes a baffle 56 coupled to an upper inner surface of the bubble jacket 54 and an air vent 59 connected to the upper end of the bubble jacket 54 .

In the present invention, the fine bubble mixing device 73 includes (i) an inflow path 41 through which the fluid and the flocculant flow together; (Ii) a drug inflow port (32) into which the flocculant is introduced, which is combined with the upper end of the inflow channel (41); (Iii) a fluid inlet (31) through which the fluid flows, connected to one side of the inflow passage (41); (Iv) a mixing tank 34, which is connected to the inflow path 41 and the other side, in which the inflow fluid and the flocculant are mixed; And (v) mixing means (37) provided at the lower end of the mixing tank (34) (FIG. 3).

In the present invention, the fine bubble mixing device 82 may further include an electric reaction tank 39 including one to eight catalyst modules 40.

The micro bubble mixing device 73 includes a baffle 33 for assisting mixing of the microbubble-containing fluid and the flocculant, which are respectively connected to one side and the other side of the inner surface of the mixing tank 34, ; A rotating shaft (42) installed to rotate through the center of the lower end of the mixing tank (34); A motor 38 disposed outside the mixing chamber 34 and coupled to the other side of the rotation shaft 42; A cover 35 coupled to the upper side of the electric reaction tank 39; And an outlet 36 connected to the other side of the electric reaction tank 39 (FIG. 3).

The motor 38 may be operated at 300 rpm to 1200 rpm.

The ratio of the fluid flowing into the inflow channel 31 to the flocculant may range from 10: 1 to 5000: 1, and the flocculant may be selected from the group consisting of polyaluminum chloride (PAC), ferric sulfate, aluminum sulfate, And an inorganic salt of ferric chloride. The coagulant may be used at a mixing ratio of 5 ppm to 50 ppm based on the undiluted solution. Further, in order to increase the electric conductivity, the flocculant may be added to one or more salt compounds selected from the group consisting of potassium chloride, calcium chloride, sodium chloride, magnesium chloride and iron chloride so that the concentration of the salt compound relative to the flocculant is 0.1 wt% And 5.0 wt%, respectively.

In the present invention, the processing module 76 is connected to the lower part of the upper reaction tank 11, 15, 100, 110, 119 and the upper part of the lower reaction tank 12, 22, 101, 111, (9, 20, 97, 109, 118) connected to the lower end of the lower cap (13, 23, 102, 112, 121) The unions 6, 7 connected to the lower part of the upper reaction tank 11, 15, 100, 110, 119 and the upper part of the lower reaction tank 12, 22, 101, 111, 120, (9, 20, 97, 109, 118) connected to the lower end of the lower cap (13, 23, 102, 112, 121) As shown in FIG.

The inner sides of the upper reaction vessels 11, 15, 100 and 110 119 and the lower reaction vessels 12, 22, 101, 111 and 120 are connected to each other, 106, and 116, respectively.

In addition, the processing module 76 may use 1 to 100 in series or parallel connection in a high-speed algaecide device, but not limited thereto, and 100 or more may be used depending on the capacity of the treated water.

In the present invention, the catalyst modules 3, 8, 18, 19, 96, 108, and 40 include (i) a catalyst plate 71 to which electrons are supplied; (Ii) a separation guide (72) for fixing the catalyst plate (71) and supplying electricity; (Iii) a separating plate 74 for supplying power to the separating guide 72 and detachably attached thereto; (Iv) a first contact terminal 75 connected to the separation guide 72 to supply electricity to the catalyst plate 71; And (v) a second contact terminal 73 connected to the separation plate 74 to supply electricity to the separation guide 72 (FIG. 6).

The catalyst plate 71 is made of one or more metals selected from the group consisting of platinum (Pt), nickel (Ni), iron (Fe), chromium plated lead (Pb), and carbon (C). When the catalyst plate is used as an insoluble metal, there is no damage due to oxidation or reduction of the electrode, and aluminum ions can be supplied through the coagulant, so that the algae can be continuously removed without replacing the electrodes.

The thickness of the catalyst plate 71 may be 0.5 mm to 2 mm. If the thickness is less than 0.5 mm, the electrode may be damaged by a rapid flow of fluid or the like. If the thickness is more than 2 mm, the operation cost may be higher than the process efficiency. Depending on the process conditions, electrodes can be fabricated in the range of 0.5 mm to 2 mm thickness.

Also, the voltage supplied to the fluid through the catalyst modules 3, 8, 18, 19, 96, 108, and 40 is 2 V to 50 V, and the current may be 0.1 A to 10.0 A. When supplying voltage and current lower than this range, algae and coagulant may not coagulate well. If voltage and current higher than this range are supplied, algae and flocculant may get rid of around the electrode. A problem may arise.

In the present invention, the separation module 77 may further include a separation unit 77 for separating the liquid and the solid from the suspended matter separated from the treatment module 76, and the separation unit 77 may be a filter.

In the present invention, the fine bubble mixing device (73) may further comprise a feeding device (75) for feeding the coagulant. The feeding device (75) may be a conveying device using gravity or pressure, .

In another aspect of the present invention, there is provided a method of removing algae-containing influent, comprising: (a) removing solids of algae-containing influent water via a solids removal device 77; (b) generating fine bubbles in the algae-containing influent water through the fine bubble generator 72; (c) mixing the fine bubble-containing influent and the flocculant in the fine bubble mixing device 74; And (d) electrically treating the influent mixed with the flocculant in a treatment module (76) to cause flocculation and flocculation, and separating the microbubble-containing float and treatment water. And a method for removing algae.

In the present invention, the step (c) is characterized by further comprising a step of electrically treating.

The step (d) further comprises removing the algae from the floating water by floating in the treatment module (76), and filtering the suspended matter separated in the step (d) Further comprising the steps of:

The algae removal process using the algae removal method is as follows. The inflow water from which solids have been removed through the solids removal device 71 is introduced into the inflow path 53 by the motor of the fine bubble generator 72 and the impeller 52 mounted inside the device is rotated, Is rotated at a high speed in the pump body (51), mixed with the air supplied from the gas inlet (60), and micro bubbles are generated. The inflow water generated bubbles flows into the bubble jacket 54, and the internal pressure of air in the bubble jacket 54 is 1 kg / cm ² To 4 kg / cm ² Through the structure of the air damper 58 and the baffle 56, the microbubbles are mixed with the generated inflow water and air while rotating at a high speed, and fine bubbles are generated in the inflow water.

Through the above process, the treated water containing the fine bubbles flows into the fine bubble mixing device 73 through the fluid inlet 31 and is mixed with the mixing means 37 in the mixing tank 34 of the fine bubble mixing device 73. [ 0.0 > coagulant < / RTI > In addition, electricity can be supplied through the catalyst module 40 mounted inside the fine bubble mixing device 73, and electrical flocculation can occur in the inflow water mixed with the flocculant.

Through the above process, the treatment water mixed with the flocculant flows into the treatment module 76, so that electrical flocculation and flocculation occur in the treated water through the catalyst module 8 mounted inside the treatment module 76, The process module 76 floats to the upper layer and overflows to the subsequent process water inflow into the processing module 76 so that the contaminated water is collected in the upper cap 10 of the processing module 76, Is discharged through the second discharge path (7) provided in the lower reaction tank (12) of the treatment module (76).

The stored polluted water is discharged through the first discharge passage 1 and then transferred to the separating means 77. [ The transferred polluted water is separated into pollutants containing algae and water through the separating means (77).

In one embodiment of the present invention, an algae elimination experiment using the ultra-high velocity algae removing apparatus of the present invention was carried out in a pond in Korea Research Institute for Agriculture and Fisheries (Ansan City, Gyeonggi Province) where algae contamination is progressing. In this experiment, four treatment modules (50L) were connected in parallel to promote electrical flocculation and floatation. In this example, the value of SS (suspended solids) was influent water of 247.5 mg / L, And the value of SS (suspended solids) in effluent treated through the method was found to be removed to 0.2 mg / L. In this experiment, the residence time (RT) in the treatment module of the influent water is about 22 seconds, which is faster than the time required for sedimentation (179 ~ 1800 sec) for removal of algae from the existing study (KR10-0993009 ).

Hereinafter, the present invention will be described in more detail with reference to Examples. It will be apparent to those skilled in the art that these embodiments are merely illustrative of the present invention and that the scope of the present invention is not limited to these embodiments.

Example  1: Bird removal experiment using high speed algae removing device

This experiment was carried out in a pond in the Research Institute for Rural Areas of Korea (Ansan, Gyeonggido) (Fig. 6). In this experiment, e-PAC was used as coagulant and diluted to 25 ppm. In the fine bubble mixing device 30L, the coagulant and the raw water were stirred at 800 rpm. The supplied voltage and current were 30 V and 5 A, respectively, and the residence time of the raw water was about 5 seconds. Experiments were also conducted using four treatment modules (50 L × 2, 12.5 L × 2). Voltage and current were supplied to each processing module at 30V, 5A (50L), 8V, 5A (12.5L), and the residence time of the raw water was about 22 seconds. Prior to the experiment, a pond sample was taken and a high - speed algae removal device for algae removal was operated. A sample of the treated water was sampled and analyzed. The results of these experiments are shown in Table 1 below.

As a result of this experiment, the removal rate of chlorophyll-a (Chl-a, Chlorophyll-a) was 99%, the removal rate of SS (suspended matter) was 91%, the removal rates of TN and TP were about 40% and 97 %. 7 (A) (algae-containing raw water) and B (treated water) were visually compared, it was confirmed that algae were removed. In addition, as the time passed, the concentration of chlorophyll and SS (suspended solids) in the inflow water were lowered, thereby confirming the algae elimination effect of the ultra high speed algaecide device.

Experimental results of bird algae removal using high speed algae removing device
No.
division
Concentration (mg / L)
Chl-a SS TN TP
One
Influent 301 18.5 13.47 1.448 Treated water 2.80 1.7 7.87 0.043 Removal rate 99% 91% 42% 97%
2
Influent 216 14.1 14.84 1.643 Treated water 1.44 1.2 9.12 0.058 Removal rate 99% 91% 39% 96%
3
Influent 186 12.0 9.48 1.215 Treated water 1.46 1.0 5.71 0.037 Removal rate 99% 92% 40% 97%

While the present invention has been particularly shown and described with reference to specific embodiments thereof, those skilled in the art will readily appreciate that many modifications are possible in the exemplary embodiments without materially departing from the novel teachings and advantages of this invention. something to do. It is therefore intended that the scope of the invention be defined by the claims appended hereto and their equivalents.

1: First discharge passage 2: Internal pipe
3: first catalyst module 4:
5: Cyclone 6: Union
7: second exhaust passage 8: second catalyst module
9: drain 10: upper cap
11: upper side reaction tank 12: lower side reaction tank
13: Lower cap 14:
15: upper reaction tank 16:
17: Union 18: Upper catalytic module
19: lower catalyst module 20: drain
21: upper cap 22: lower tank
23: Lower cap 31: Fluid inlet
32: drug inlet 33: baffle
34: mixing tank 35: cover
36: discharge path 37: mixing means
38: motor 39: electric reaction tank
40: catalyst module 41:
42: rotating shaft 51: pump body
52: impeller 53: inflow path
54: bubble jacket 55: discharge pipe
56: baffle 57: outlet
58: Air damper 59: Air vents
60: gas inlet 61: rotary shaft
71: solids removal device 72: fine bubble generator
73: fine bubble mixing device 74: chemical tank
75: supply means 76: processing module
77: separating means 91: first discharge passage
92: Internal tube 93: Inflow path
94: Union 95: Fine bubble guide
96: catalyst module 97: drain
98: upper cap 99: second exhaust passage
100: upper tank 101: lower tank
102: lower cap 103: upper cap
104: first discharge path 105: inflow path
106: Union 107: Second exhaust passage
108: catalyst module 109: drain
110: upper side reaction tank 111: lower side reaction tank
112: lower cap 113: upper cap
114: first discharge path 115: inflow path
116: Union 117: Second exhaust passage
118: drain 119: upper tank
120: lower reaction tank 121: bottom cap
131: catalyst plate 132: separation guide
133: second contact terminal 134: separating plate
135: first contact terminal

Claims (21)

(a) a solids remover (71) for primarily removing solids from the algae-containing influent;
(b) a fine bubble generator (72) for generating fine bubbles in the algae-containing influent treated in the solids remover;
(c) a fine bubble mixing device (73) for mixing the flocculant with the inflow water in which the fine bubbles have been generated; And
(d) a processing module (76) for electrically treating the treated water treated in the fine bubble mixing device (73) to induce flocculation and floating, and to separate the suspended bubble-containing suspended matter and the treated water; In the removal device,
The processing module (76)
(i) an upper reaction tank (11) in which substances of the inflow fluid are suspended and separated;
(ii) an inflow path (4) connected to an intermediate portion of the upper reaction tank (11) and through which the fluid flows;
(iii) an upper cap 10 coupled with an upper end portion of the upper reaction tank 11;
(iv) a first discharge path (1) connected through the lower end surface of the upper cap (10);
(v) an inner tube (2) installed inside the upper reaction tank (11);
(vi) a first catalyst module (3) installed inside the inner tube (2);
(vii) a cyclone (5) mounted at the bottom of the first catalyst module (3);
(viii) a lower reactor 12 connected to the lower end of the upper reactor 11;
(ix) a second catalyst module (8) installed in the lower reactor (12);
(x) a second discharge path (7) coupled through an intermediate surface of the lower reaction tank (12); And
(xi) a composite module including a lower cap (13) coupled to a lower end of the lower reaction tank (12);
(A) an upper reaction tank 15 in which substances of the inflow fluid are suspended and separated;
(B) an inflow passage (16) connected to an intermediate portion of the upper reaction tank (15) and through which the fluid flows;
(C) an upper cap (21) coupled with an upper portion of the upper reaction tank (15);
(D) a discharge passage (14) connected through the lower end surface of the upper cap (21);
(E) a lower reactor 22 connected to a lower end of the upper reactor 15;
(B) an upper catalyst module (18) and a lower catalyst module (19) installed inside the lower reactor (22); And
(D) a high concentration module having a lower cap (23) coupled to a lower end of the lower reaction tank (22);
(i ') an upper reaction tank 100 in which substances of the introduced fluid are suspended and separated;
(ii ') an inflow path 93 connected to an intermediate portion of the upper reaction tank 100 and through which the fluid flows;
(iii ') an upper cap 98 coupled with an upper portion of the upper reaction vessel 100;
(iv ') a first discharge path 91 connected through the lower end surface of the upper cap 98;
(v ') an inner tube (92) installed inside the upper reaction tank (100);
(vi ') a second discharge path (99) connected to one side of the inner tube (92);
(vii ') a conical micro bubble guide 95 installed at the lower end of the inner tube 92;
(viii ') a lower reactor 101 connected to the lower end of the upper reactor 100;
(ix ') a catalyst module 96 installed inside the lower reaction tank 101; And
(x ') a lower tub 102 coupled to a lower end of the lower reaction tank 101;
(A) an upper reaction tank 110 in which substances of the inflow fluid are suspended and separated;
(B ') an inflow path (105) connected to an intermediate portion of the upper reaction tank (110) and through which the fluid flows;
(C ') an upper cap (103) coupled with an upper portion of the upper reaction tank (110);
(D ') a first discharge path (104) connected through the lower end surface of the upper cap (103);
(ㅁ ') a lower reaction tank 111 connected to a lower end portion of the upper reaction tank 110;
(F ') a catalyst module (108) installed inside the lower reactor (111);
(G ') a second discharge path 107 coupled through an intermediate surface of the lower reaction tank 111; And
(O ') a lower concentration module having a lower cap (112) coupled to a lower end of the lower reaction tank (111); And
(A) an upper reaction tank (119) in which substances of the inflow fluid are suspended and separated;
(B) an inflow path (115) connected to an intermediate portion of the upper reaction tank (119) and through which fluid flows;
(C) an upper cap (113) coupled with an upper end portion of the upper reaction tank (119);
(D) a first discharge passage (114) penetrating through the lower end surface of the upper cap (113);
(E) a lower reactor 120 connected to a lower end portion of the upper reactor 119;
(F) a second discharge path (117) coupled through an intermediate surface of the lower reaction tank (120); And
(G) a lower cap (121) coupled to the lower end of the lower reaction tank (120), and a separation module
The fine bubble generator 72 includes:
(I) an inflow path (53) through which fluid flows;
(Ii) a pump body 51 connected to the other side of the inflow path 53;
(Iii) a gas inlet (60) connected to an upper portion of the inflow passage (53);
(Iv) a rotating shaft (61) installed to rotate through the center of the pump body (51);
(V) an impeller (52) coupled to one side of the rotating shaft (61);
(Vi) a motor (not shown) coupled to the other side of the rotating shaft 61;
(B) a bubble jacket 54 coupled to a left upper end of the pump body 51;
(Iii) an air damper (58) coupled to a lower inner surface of the bubble jacket (54);
(Iii) a discharge pipe (55) connected through the center of the bubble jacket (54); And
(X) a discharge port (57) connected to one side of the bubble jacket (54)
Wherein the high-speed alga-
The apparatus of claim 1, wherein the solids removal device (71) comprises at least one selected from a cyclone, a hydrocyclone, a multi-cyclone, and a filter.
delete The micro bubble generator (72) according to claim 1, wherein the fine bubble generator (72) comprises a baffle (56) coupled to an upper inner surface of the bubble jacket (54), and an air vent (59) connected to the upper end of the bubble jacket Wherein the high-speed alga-
The fine bubble mixing device (73) according to claim 1, wherein: the fine bubble mixing device (73)
(I) an inflow path (41) through which the fluid and the flocculant flow together;
(Ii) a drug inflow port (32) into which the flocculant is introduced, which is combined with the upper end of the inflow channel (41);
(Iii) a fluid inlet (31) through which the fluid flows, connected to one side of the inflow passage (41);
(Iv) a mixing tank 34, which is connected to the inflow path 41 and the other side, in which the inflow fluid and the flocculant are mixed; And
(V) mixing means (37) provided at the lower end of the mixing tank (34)
The fine bubble mixing device 73 further includes an electric reaction tank 39 including one to eight catalyst modules 40,
The micro bubble mixing device 73 includes a baffle 33 for assisting mixing of the microbubble-containing fluid and the flocculant, which are respectively connected to one side and the other side of the inner surface of the mixing tank 34, ; A rotating shaft (42) installed to rotate through the center of the lower end of the mixing tank (34); A motor 38 disposed outside the mixing chamber 34 and coupled to the other side of the rotation shaft 42; A cover 35 coupled to the upper side of the electric reaction tank 39; And an outlet (36) coupled to the other side of the electric reaction tank (39).
delete delete The process of claim 1, wherein the processing module (76) comprises a union coupled to a lower portion of the upper reaction tank (11, 15, 100, 110, 119) and an upper portion of the lower reaction tank (12, 22, 101, 111, 120) (9, 20, 97, 109, 118) for internal cleaning, which are connected through the bottom surfaces of the lower caps (6, 17, 94, 106, Speed alga-current eliminator.
9. The method according to claim 8, wherein the inside of the upper reaction tank (11, 15, 100, 110 119) and the lower reaction tank (12, 22, 101, 111, 120) 17, 94, 106, and 116, respectively.
The high-speed algae removing device according to claim 1, wherein the catalyst modules (3, 8, 18, 19, 96, 108, 40)
(I) a catalytic plate 131 to which electrons are supplied;
(Ii) a separation guide 132 for fixing the catalyst plate 131 and supplying electricity;
(Iii) a separation plate 134 for supplying power to the separation guide 132 and detachably attached thereto;
(Iv) a first contact terminal 135 connected to the separation guide 132 to supply electricity to the catalytic plate 131; And
(V) a second contact terminal 133 connected to the separation plate 134 to supply electricity to the separation guide 132.
The catalyst plate according to claim 10, wherein the catalytic plate (131) is made of one selected from an insoluble metal group consisting of platinum (Pt), nickel (Ni), iron (Fe), chromium plated lead (Pb) Or more of the metal.
11. The apparatus of claim 10, wherein the catalyst plate (131) has a thickness of 0.5 mm to 2 mm.
The method of claim 1, wherein the voltage supplied to the fluid through the catalyst modules (3, 8, 18, 19, 96, 108, 40) is between 2 V and 50 V and the current is between 0.1 A and 10.0 A. High speed algae removal device.
The apparatus of claim 1, further comprising separating means (77) for separating liquid and solids from the suspended solids separated by the treatment module (76).
15. The apparatus of claim 14, wherein the separating means (77) is a filter.
The apparatus according to claim 1, further comprising a feeding means (75) for feeding the coagulant to the fine bubble mixing device (73).
17. The apparatus according to claim 16, wherein the supplying means (75) is a conveying means or a pump using gravity or pressure.
An algae elimination method using the high-speed algaecide device according to any one of claims 1 to 4, comprising the following steps:
(a) removing the solids of the algae-containing influent water through the solids remover 71;
(b) generating fine bubbles in the algae-containing influent water through the fine bubble generator 72;
(c) mixing the fine bubble-containing influent with the flocculant in the fine bubble mixing device (73); And
(d) electrically treating the influent mixed with the flocculant in the treatment module (76) to induce flocculation and flocculation, and separating the microbubble-containing suspended matter and treated water.
19. The method of claim 18, wherein step (c) further comprises electrically treating.
19. The method of claim 18, wherein step (d) further comprises removing algae from the influent through a suspended solids flocculation in the treatment module (76).
19. The method of claim 18, further comprising filtering the suspended matter separated in step (d).

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