River Inflow Water Quality And Odor Improvement Device

Abstract

A river inflow water quality and odor improvement device comprises: a microfiltration unit for removing particulate matter from inflow water flowing in from a river; a primary oxidation unit that microbubbles ozone into the water microfiltered by the microfiltration unit and applies at least one of ultrasound and ultraviolet rays to the ozone-supplied inflow water to perform primary oxidation; an oxygen water production unit that dissolves oxygen into the treated water oxidized by the primary oxidation unit to generate oxygenated water; an oxygen water discharge unit that discharges the generated oxygenated water into the river; a sensor unit including an organic matter concentration sensor disposed downstream of the primary oxidation unit to detect the organic matter concentration of the oxidized treated water and a dissolved oxygen measurement sensor to measure the dissolved oxygen concentration of the oxygenated water generated by the oxygen water production unit; a device that stores the normal organic matter concentration range of the treated water oxidized by the primary oxidation unit and the normal dissolved oxygen concentration range of the oxygenated water generated by the oxygen water production unit, and if it is determined that the organic matter concentration detected by the organic matter concentration sensor exceeds the normal organic matter concentration range It includes a control unit that controls the operating intensity of the primary oxidation unit to increase, and controls the operating intensity of the oxygen water production unit to increase when it is determined that the dissolved oxygen concentration measured by the dissolved oxygen measurement sensor is below the normal dissolved oxygen concentration range.

Description

Technology Field

[0001] The present invention relates to a device for improving the water quality and odor of river inflow, and more specifically, to a device for improving the water quality and odor of river inflow that restores the river ecosystem by applying RADOX-R technology, which includes microfiltration, ozone microbubble reaction, ultrasonic treatment, and high-concentration oxygenated water supply steps. Background Technology

[0003] Rivers are exposed to various pollutants due to urban life and industrial activities, leading to serious problems of water quality degradation and foul odors. Polluted river water has an adverse effect on the surrounding environment and ecosystem, and is a factor that lowers the quality of life for citizens.

[0004] Various methods such as physical sedimentation, chemical coagulation, and biological treatment have been utilized as existing methods for improving river water quality; however, these methods have drawbacks, such as requiring large sites, having low treatment efficiency, and the potential for secondary pollution. Furthermore, in the case of odor problems, reliance on temporary methods such as spraying deodorizers without fundamental water quality improvement has been common, resulting in limited effectiveness or poor sustainability.

[0005] Therefore, new technology is required to efficiently improve the water quality of river inflow and effectively reduce odors even in confined spaces. Prior art literature

[0007] Republic of Korea Registered Patent No. 10-1210560 River Water Quality Improvement Device for Ecological Restoration (Registration Date: Dec. 04, 2012) The problem to be solved

[0008] Therefore, the objective of the present invention is to provide a device for improving the water quality and odor of river inflow water, capable of introducing river water to remove organic matter and dissolving oxygen in the treated water from which organic matter has been removed before discharging it. means of solving the problem

[0010] A river inflow water quality and odor improvement device according to the present invention for achieving the above objective comprises: a microfiltration unit for removing particulate matter in the inflow water flowing in from a river; a primary oxidation unit for supplying microbubbled ozone to the water microfiltered by the microfiltration unit and applying at least one of ultrasound and ultraviolet rays to the inflow water supplied with ozone to perform primary oxidation; an oxygen water production unit for producing oxygenated water by dissolving oxygen in the treated water oxidized by the primary oxidation unit; an oxygenated water discharge unit for discharging the produced oxygenated water into a river; and a sensor unit comprising an organic matter concentration sensor disposed downstream of the primary oxidation unit for detecting the organic matter concentration of the oxidized treated water and a dissolved oxygen measurement sensor for measuring the dissolved oxygen concentration of the oxygenated water produced by the oxygenated water production unit. It includes a control unit that stores the normal organic matter concentration range of the treated water oxidized by the primary oxidation unit and the normal dissolved oxygen concentration range of the oxygenated water produced by the oxygenated water production unit, controls the operating intensity of the primary oxidation unit to increase if it is determined that the organic matter concentration detected by the organic matter concentration sensor exceeds the normal organic matter concentration range, and controls the operating intensity of the oxygenated water production unit to increase if it is determined that the dissolved oxygen concentration measured by the dissolved oxygen measurement sensor falls below the normal dissolved oxygen concentration range. By introducing river water to remove particulate matter, oxidizing and removing organic matter, and sufficiently dissolving oxygen in the treated water from which organic matter has been removed, and then discharging it back into the river, the water quality of the river can be fundamentally improved and odors reduced.

[0011] Herein, an oxidation treatment pipe connecting the primary oxidation unit and the oxygen water production unit; an oxidation bypass pipe branching from a point on the oxidation treatment pipe and connecting to the oxygen water production unit; and an oxidation selection valve disposed at the branching point between the treatment pipe and the bypass pipe to selectively connect the treatment pipe and the bypass pipe; The apparatus further includes a secondary oxidation unit disposed between the primary oxidation unit and the oxygen water production unit, which supplies a plurality of oxidizing agents to generate high-concentration radicals for secondary oxidation, and the control unit stores the critical organic matter concentration of the treated water oxidized by the primary oxidation unit, and if it is determined that the organic matter concentration detected by the organic matter concentration sensor exceeds the critical organic matter concentration, the secondary oxidation unit is controlled to operate while the treated water oxidized by the primary oxidation unit is connected to the bypass pipe, so that if the organic matter inflowing from the river is high, the organic matter not treated by the primary oxidation unit is discharged, and thus it is desirable to further remove it to improve water quality.

[0012] The oxygen water discharge unit includes an oxygen water discharge pipe that provides a path for discharging the generated oxygen water into a river, and an oxygen water production circulation pipe that connects a point on the oxygen water discharge pipe to the front end of the oxygen water production unit; and further includes an oxygen water production selection valve disposed at a branching point between the oxygen water discharge pipe and the circulation pipe, which selectively connects the oxygen water discharge pipe and the circulation pipe. The control unit stores the critical dissolved oxygen concentration of the oxygen water generated by the oxygen water production unit, and if it is determined that the dissolved oxygen concentration measured by the dissolved oxygen measurement sensor is less than the critical dissolved oxygen concentration, the oxygen water production selection valve is controlled to connect the oxygen water generated by the oxygen water production unit to the front end of the oxygen water production unit, and the operating intensity of the oxygen water production unit is controlled to increase, thereby making the dissolved oxygen concentration of the oxygen water generated by the oxygen water production unit reach a set concentration, which is preferable.

[0013] Here, the oxygen water production unit is preferable because it can easily dissolve oxygen into the treated water from which organic matter has been removed by using a membrane contact method or a bubble diffusion method to dissolve oxygen into the water.

[0014] Furthermore, the sensor unit further includes a water level sensor for detecting the water level of a river, and further includes a river water inlet unit comprising an inlet pipe connected to the microfiltration unit while immersed in the river at one end, and an inlet pump disposed on the inlet pipe to drive the inflow of river water from the river; the control unit stores the minimum critical water level and the maximum critical water level of the river, and controls the inlet pump to stop the inflow of river water when it is determined that the river water level detected by the water level sensor has dropped to the minimum critical water level, and controls the inlet pump to increase the inflow of river water when it is determined that the river water level detected by the water level sensor has reached the maximum critical water level, thereby controlling the operating intensity of the oxygen water production unit to increase, so that the inflow can be stopped when the river water level is low, and the operating intensity for dissolving oxygen can be increased while increasing the inflow amount when the river water level is high. Effects of the invention

[0016] According to the present invention, river water is introduced to remove particulate matter, organic matter is removed by oxidation, and oxygen is sufficiently dissolved in the treated water from which organic matter has been removed before being discharged back into the river, thereby having the effect of fundamentally improving the water quality of the river and reducing odors.

[0017] In addition, if there is a large amount of organic matter in the river water flowing in from the river, organic matter that is not treated by the primary oxidation unit is discharged, so there is an effect of improving water quality by additionally removing it.

[0018] In addition, it has the effect of making the dissolved oxygen concentration of the oxygenated water generated by the oxygenated water production unit reach a set concentration.

[0019] In addition, it has the effect of easily dissolving oxygen into the treated water from which organic matter has been removed.

[0020] In addition, it has the effect of stopping the inflow when the river water level is low, and increasing the operating intensity for dissolving oxygen while increasing the inflow when the river water level is high. Brief explanation of the drawing

[0022] FIG. 1 is an example diagram of the overall configuration of a river inflow water quality and odor improvement device according to the present invention. Figure 2 is a detailed example of a secondary oxidation unit. Figure 3 is an example diagram of a microfiltration unit, a primary oxidation unit, and an oxygen water production unit. Figure 4 is an example of a crushing unit. Figure 5 is an example diagram of an ozone emission section. Figure 6 is a control block diagram of a river inflow water quality and odor improvement device. Specific details for implementing the invention

[0023] Hereinafter, a river inflow water quality and odor improvement device (1) according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0024] FIG. 1 is an example diagram of the overall configuration of a river inflow water quality and odor improvement device (1) according to the present invention, FIG. 2 is a detailed example diagram of a secondary oxidation unit (50), FIG. 3 is an example diagram of a microfiltration unit (20), a primary oxidation unit (40), and an oxygen water production unit (60), FIG. 4 is an example diagram of a crushing unit (30), FIG. 5 is an example diagram of an ozone discharge unit (49), and FIG. 6 is a control block diagram of a river inflow water quality and odor improvement device (1).

[0025] Referring to FIGS. 1 to 6, the configuration of the river inflow water quality and odor improvement device (1) is described.

[0026] The river inflow water quality and odor improvement device (1) includes a river water inflow section (10), a microfiltration section (20), a crushing unit (30), a primary oxidation unit (40), a secondary oxidation unit (50), an oxygen water production section (60), an oxygen water discharge section (70), a sensor section (80), and a control section (90).

[0027] The river water inflow section (10) includes an inflow pipe (11), an inflow valve (12), and an inflow pump (13).

[0028] The inlet pipe (11) can be connected to the microfiltration unit (20) while immersed in the river (2) at one end to provide a path for the river water to move.

[0029] The inflow valve (12) is positioned on the inflow pipe (11) to control the movement of the inflowing river water.

[0030] The inflow pump (13) is positioned on the inflow pipe (11) and can drive the inflow of river water from the river into the microfiltration unit (20).

[0031] The microfiltration unit (20) removes particulate matter from the inflow water flowing in from the river (2). The microfiltration unit (20) includes a centrifuge (21) and a screen (22).

[0032] The centrifuge (21) can separate the mixture through a fine difference in weight, and thereby can separate and remove non-degradable organic matter of a certain size or larger from the raw wastewater.

[0033] The screen (22) is positioned upstream of the centrifuge (21) to remove relatively large particles among the non-degradable organic matter in the raw wastewater. The screen (22) is configured to physically separate large particles.

[0034] The crushing unit (30) includes a crushing plate (31) and a plate rotation drive unit (32).

[0035] The crushing plate (31) can be formed by folding the cut pieces in multiple areas. The crushing plate (31) may have a rotation axis connected to the rotation axis center area, and multiple areas may be cut and the plate folded to form through holes, and as it rotates, organic matter containing non-degradable organic matter can be finely crushed by the cut pieces. The more of these multiple cut pieces there are, the finer the organic matter containing non-degradable organic matter can be crushed. Here, the crushing plate (31) may be made up of multiple pieces and may be arranged so that the rotating plate surfaces overlap.

[0036] The plate rotation drive unit (32) may consist of a rotating shaft and a motor coupled to the central region of the crushing plate (31), and may be rotated at a high speed according to the control of the control unit (90) described later when the concentration of organic matter is high, or the crushing plate (31) may be rotated by varying the rotation speed according to the concentration of organic matter.

[0037] The primary oxidation unit (40) microbubbles ozone into water microfiltered in the microfiltration unit (20) and supplies it to the incoming water supplied with ozone, and applies at least one of ultrasound and ultraviolet rays to the incoming water to perform primary oxidation. The primary oxidation unit (40) includes a primary ozone generator (41), a primary ozone microbubble reaction device (42), a primary oxidation reaction tank (43), a primary ultrasound generator (44), a primary ultraviolet generator (45), an oxidation treatment pipe (46), an oxidation bypass pipe (47), an oxidation selection valve (48), and an ozone discharge unit (49).

[0038] The primary ozone generator (41) can generate ozone using oxygen.

[0039] The primary ozone microbubble reaction device (42) can produce ozone microbubble water by mixing ozone generated from the ozone generator (41) with the treated water treated in the primary oxidation reaction tank (43).

[0040] The primary oxidation reaction tank (43) has an internal space formed for the oxidation reaction of river water mixed with ozone microbubbles. The primary oxidation reaction tank (43) may have guide partitions formed in multiple internal areas to increase the movement path of the river water mixed with ozone microbubbles.

[0041] The primary ultrasonic generator (44) is positioned in a plurality of movement path areas formed by a plurality of guide partitions and outputs ultrasonic waves.

[0042] The primary ultraviolet generating device (45) is positioned in a plurality of movement path areas formed by a plurality of guide partitions and can emit ultraviolet rays to wastewater and ozone moving in a zigzag pattern to generate radicals.

[0043] The oxidation treatment pipe (46) can connect the primary oxidation unit (40) and the oxygen water production unit (60) to provide a path for the treated water oxidized in the primary oxidation unit (40) to flow into the oxygen water production unit (60).

[0044] The oxidation bypass pipe (47) can be branched from one point on the oxidation treatment pipe (46) and connected to the oxygen water production unit (60).

[0045] An oxidation selection valve (48) is positioned at the branching point of the treatment pipe (46) and the bypass pipe (47) to selectively connect the treatment pipe (46) and the bypass pipe (47).

[0046] The ozone discharge section (49) includes an ozone discharge pipe (491), an ozone discharge valve (492), and a heater (493).

[0047] The ozone discharge pipe (491) is positioned above the primary oxidation reaction tank (43) to discharge ozone from the inside to the outside.

[0048] The ozone discharge valve (492) is positioned on the ozone discharge pipe (491) to control the movement of ozone.

[0049] A heater (493) is placed on the ozone discharge pipe (491) and can remove the discharged ozone by applying heat to it.

[0050] The secondary oxidation unit (50) is positioned between the primary oxidation unit (40) and the oxygen water production unit (60), and can generate high-concentration radicals by supplying multiple oxidizing agents to perform secondary oxidation. The secondary oxidation unit (50) includes an oxidizing agent storage unit (51), an oxidation reaction tank (52), an oxidizing agent transfer pipe (53), an oxidizing agent dispersion unit (54), and an oxidizing agent transfer pump (55).

[0051] The oxidizing agent storage unit (51) can store multiple oxidizing agents. The oxidizing agent storage unit (51) may be composed of multiple units, and one of the oxidizing agent storage units (51) may store at least one of the first oxidizing agents, iron persulfate and sodium persulfate. It is used in a liquid form in powder form, and the input amount may be 100 to 20,000 ppm. Another oxidizing agent storage unit (51) may store at least one of the second oxidizing agents, hydrogen peroxide, sodium hydroxide, and sodium percarbonate. The second oxidizing agent is used by dissolving it in water or by diluting it in water, and can be input in conjunction with a metering pump and a pH meter to achieve a pH of 1 to 14. Another oxidizing agent storage unit (51) may store a third oxidizing agent, which may be a catalyst, and the catalyst may store at least one of manganese dioxide, iron, and activated carbon.

[0052] The oxidation reaction tank (52) can mix multiple oxidizing agents and wastewater.

[0053] The oxidant transfer pipe (53) can transfer the oxidant by connecting the oxidant storage unit (51) and the oxidation reaction tank (52).

[0054] The oxidizing agent dispersion section (54) may be placed at the connection point with the oxidation reaction tank (52) at the end of the oxidizing agent transfer pipe (53) to disperse the oxidizing agent being transferred. The oxidizing agent dispersion section (54) may be made of a Venturi tube.

[0055] The oxidant transfer pump (55) is positioned on the oxidant transfer pipe (53) to transfer the oxidant.

[0056] The oxygen water production unit (60) produces oxygen water by dissolving oxygen in the treated water oxidized by the primary oxidation unit (40). The oxygen production unit (60) can dissolve oxygen in water using a membrane contact method or a bubble diffusion method. The oxygen production unit (60) includes an oxygen generator (61), an oxygen microbubble reaction device (62), an oxygen microbubble crushing plate (63), and an oxygen microbubble plate rotation drive unit (64).

[0057] The oxygen generator (61) can generate oxygen. The oxygen generator (61) is a concentrated oxygen generator using the PSA (Pressure Swing Adsorption) method or a similar method that generates oxygen with a concentration of 93% or higher.

[0058] The oxygen microbubble reaction device (62) can produce oxygen microbubble water by mixing oxygen generated from the oxygen generator (21) with groundwater stored in the storage tank (10).

[0059] The oxygen microbubble crushing plate (63) can be formed by folding a cut section in multiple areas. The oxygen microbubble crushing plate (63) may have a rotation axis coupled to the rotation axis center area, and a through hole may be formed by folding the plate in multiple areas and rotating it, allowing oxygen and groundwater to be mixed by the cut section and microbubbles to be formed. The more of these multiple cut sections there are, the more the oxygen and groundwater are mixed and microbubbles are formed. Here, the oxygen microbubble crushing plate (63) may be composed of multiple parts. The oxygen microbubble crushing plate (63) is equipped with more than 100 metal protrusions and diffuses oxygen into water in the form of microbubbles while rotating at 3,500 rpm or more. The oxygen microbubble crushing plate (63) can utilize centrifugal force and shear force to achieve oxygen micronization and maintain a particle diameter of less than 1 to 10 μm.

[0060] The oxygen microbubble plate rotation drive unit (64) may be composed of a rotation shaft and a motor coupled to the central region of the oxygen microbubble crushing plate (63), and may be rotated at a high speed according to the control of the control unit (90) to reduce the size of the oxygen microbubbles, and may be rotated at a different rotation speed according to the required dissolved oxygen concentration of the groundwater.

[0061] The oxygen water discharge unit (70) discharges the generated oxygen water into a river. The oxygen water discharge unit (70) includes an oxygen water discharge pipe (71), an oxygen water discharge pump (72), an oxygen water production circulation pipe (73), and an oxygen water production selection valve (74).

[0062] The oxygen water discharge pipe (71) and the oxygen water discharge section (70) can provide a path for discharging the generated oxygen water into a river.

[0063] The oxygen water discharge pump (72) is placed on the oxygen water discharge pipe (71).

[0064] The oxygen water production circulation pipe (73) can connect a point of the oxygen water discharge pipe (71) and the front end of the oxygen water production section (60).

[0065] The oxygen water production selection valve (74) is positioned at the branching point of the oxygen water discharge pipe (71) and the circulation pipe (73), and can selectively connect the oxygen water discharge pipe (71) and the circulation pipe (73).

[0066] The sensor unit (80) includes an organic matter concentration sensor (81), a water level detection sensor (82), a dissolved oxygen measurement sensor (83), a pathogen concentration sensor (84), a flow rate sensor (85), and a pressure sensor (86).

[0067] The organic matter concentration sensor (81) is positioned at the rear of the primary oxidation unit (40) to detect the organic matter concentration of the oxidized treated water.

[0068] The water level sensor (82) can detect the water level of the river (2).

[0069] The dissolved oxygen measuring sensor (83) measures the dissolved oxygen concentration of the oxygen water produced by the oxygen water production unit (60).

[0070] The pathogen concentration sensor (84) can detect the pathogen concentration of the river water flowing into the primary oxidation reaction tank (43).

[0071] The flow sensor (85) can detect the flow rate of groundwater moving into the primary oxidation reaction tank (43) and the flow rate of wastewater discharged from the primary oxidation reaction tank (43).

[0072] The pressure sensor (86) can detect the pressure inside the primary oxidation reaction tank (43).

[0073] The control unit (90) stores the normal organic matter concentration range of the treated water oxidized by the primary oxidation unit (40) and the normal dissolved oxygen concentration range of the oxygen water produced by the oxygen water production unit (60), and if it is determined that the organic matter concentration detected by the organic matter concentration sensor (81) exceeds the normal organic matter concentration range, it controls the operating intensity of the primary oxidation unit (40) to increase, and if it is determined that the dissolved oxygen concentration measured by the dissolved oxygen measurement sensor (83) falls short of the normal dissolved oxygen concentration range, it controls the operating intensity of the oxygen water production unit (60) to increase.

[0074] The control unit (90) stores the critical organic matter concentration of the treated water oxidized by the primary oxidation unit (40), and if it is determined that the organic matter concentration detected by the organic matter concentration sensor (81) exceeds the critical organic matter concentration, it can control the secondary oxidation unit (50) to operate in a state where the treated water oxidized by the primary oxidation unit (40) is connected to the bypass pipe (47).

[0075] The control unit (90) stores the critical dissolved oxygen concentration of the oxygen water produced by the oxygen water production unit (60), and if it is determined that the dissolved oxygen concentration measured by the dissolved oxygen measurement sensor (83) is less than the critical dissolved oxygen concentration, the oxygen water production selection valve (74) is controlled so that the oxygen water produced by the oxygen water production unit (60) is connected to the front end of the oxygen water production unit (60), and the operating intensity of the oxygen water production unit (60) can be increased.

[0076] The control unit (90) stores the minimum critical water level and the maximum critical water level of the river (2), and when it is determined that the water level of the river (2) detected by the water level detection sensor (82) has dropped to the minimum critical water level, it controls the inflow pump (13) to stop the inflow of river water, and when it is determined that the water level of the river (2) detected by the water level detection sensor (82) has reached the maximum critical water level, it controls the inflow pump (13) to increase the inflow of river water, and can control the operating intensity of the oxygen water production unit (60) to increase.

[0077] Figure 2 is a detailed example of a secondary oxidation unit (50).

[0078] Three Venturi tubes are arranged on the main pipe through which wastewater travels, and a plurality of oxidizer storage units (51) of the secondary oxidation unit (50) are connected to each of the three oxidizer dispersion units (54, Venturi tubes). Each of the three oxidizer dispersion units (54, Venturi tubes) is connected to three tees arranged at the static mixer at the rear end of the main pipe and a pipe that allows pressure to be transmitted.

[0079] The principle is that the chemical is drawn into the oxidizing agent dispersion section (54, Venturi tube) due to the pressure difference between the left and right sides, starting from the center valve. The pressure on the left side is 0.5 to 2 times higher. By utilizing this pressure difference, the oxidizing agent can be injected in a precise amount. By adjusting the size of the three oxidizing agent dispersion sections (54, Venturi tubes) considering the flow rate of wastewater, the amount of oxidizing agent injected due to the pressure difference between the left and right sides can be controlled.

[0080] Figure 4 is an example of a crushing unit (30).

[0081] Fig. 4 (a) is a mixing reactor of ozone and treated water of a crushing unit (30).

[0082] FIG. 4 (b) A crushing plate (31) of a crushing unit (30) may be built into the mixing reactor, and the crushing plate (31) may be rotated by a plate rotation drive unit (32) so that organic matter containing non-degradable organic matter can be finely crushed.

[0083] Figure 5 is an example of an ozone emission unit (49).

[0084] The ozone discharge pipe (491) may have an internal passage and a partition wall formed to allow the ozone to move in a zigzag pattern, and a heater (493) may be placed along the ozone path. When the ozone is exposed to the heat of the heater (493), it decomposes by thermal destruction and becomes harmless air, so it can be decomposed and discharged in this way.

[0085] Modifiable embodiments other than the above embodiments are described.

[0086] It may further include an odor reduction device installed along the riverbank by identifying areas where floating debris or fallen leaves accumulate in the river. The odor reduction device may include an odor concentration detection sensor and a communication unit. The control unit stores the operating rates for each of the multiple odor reduction devices for multiple odor concentrations, calculates the operating rate of the corresponding odor reduction device based on the odor concentration detected by the corresponding odor concentration detection sensor placed in the odor generation area, controls the corresponding odor reduction device to operate at the calculated operating rate, analyzes data transmitted in real time from the odor concentration sensor using an artificial intelligence model to generate a real-time odor map based on location-based sewer network data, predicts odor generation patterns by analyzing time-series data, generates vector-format derived variables based on the predicted odor generation patterns and real-time odor status data to determine the operating rate of each odor reduction device, controls each odor reduction device, accumulates odor reduction efficiency data of each odor reduction device, and performs periodic updates to the artificial intelligence model.

[0087] The control unit stores odor reduction intensities for multiple odor reduction devices for multiple odor concentrations, calculates the odor reduction intensity of the odor reduction device based on the odor concentration detected by the odor concentration detection sensor placed in the odor generation area, and can control the odor reduction device to operate at the calculated odor reduction intensity.

[0088] With the above-described river inflow water quality and odor improvement device (1), river water is introduced to remove particulate matter, organic matter is oxidized and removed, and oxygen is sufficiently dissolved in the treated water from which organic matter has been removed and discharged back into the river, thereby fundamentally improving the water quality of the river and reducing odor.

[0089] In addition, if there is a large amount of organic matter in the river water flowing in from the river, organic matter that is not treated by the primary oxidation unit is discharged, so it can be additionally removed to improve water quality.

[0090] In addition, the dissolved oxygen concentration of the oxygenated water generated by the oxygenated water production unit can be made to reach a set concentration.

[0091] In addition, oxygen can be easily dissolved in the treated water from which organic matter has been removed.

[0092] In addition, if the river water level is low, the inflow can be stopped, and if the river water level is high, the operating intensity for dissolving oxygen can be increased while increasing the inflow. Explanation of the symbols

[0094] 1: River Inflow Water Quality and Odor Improvement Device 2: River 10: Stream inflow section 11: Inlet pipe 12: Inlet valve 13: Inlet pump 20: Microfiltration section 21: Centrifuge 22: Screen 30: Crushing unit 31: Crushing plate 32; Plate rotation drive unit 40: Primary oxidation unit 41: Primary ozone generator 42: Primary ozone microbubble reactor 43: Primary oxidation reactor 44: Primary ultrasonic generator 45: Primary UV generator 46: Oxidation treatment piping 47: Oxidation bypass piping 48: Oxidation selector valve 49: Ozone discharge section 491: Ozone discharge pipe 492: Ozone release valve 493: Heater 50: Secondary oxidation unit 51: Oxidizing agent storage unit 52: Oxidation reaction tank 53: Oxidizer transfer piping 54: Oxidizer dispersion section 55: Oxidizer transfer pump 60: Oxygen Water Production Department 61: Oxygen generator 62: Oxygen microbubble reactor 63: Oxygen microbubble crushing plate 64: Oxygen microbubble plate rotation drive unit 70: Oxygen discharge unit 71: Oxygen discharge pipe 72: Oxygenated water discharge pump 73: Oxygen water production circulation piping 74: Oxygen sub-production selection valve 80: Sensor section 81: Organic matter concentration sensor 82: Water level sensor 83: Dissolved oxygen sensor 84: Pathogen concentration sensor 85: Flow sensor 86: Pressure sensor 90: Control unit

Claims

Claim 1 delete Claim 2 A device for improving the water quality and odor of river inflow water, comprising: a microfiltration unit for removing particulate matter in the inflow water flowing in from a river; a primary oxidation unit for supplying microbubbled ozone to the water microfiltered by the microfiltration unit and applying at least one of ultrasound and ultraviolet rays to the inflow water supplied with ozone to perform primary oxidation; an oxygen water production unit for producing oxygenated water by dissolving oxygen in the treated water oxidized by the primary oxidation unit; an oxygenated water discharge unit for discharging the produced oxygenated water into a river; and a sensor unit comprising an organic matter concentration sensor disposed downstream of the primary oxidation unit for detecting the organic matter concentration of the oxidized treated water and a dissolved oxygen measurement sensor for measuring the dissolved oxygen concentration of the oxygenated water produced by the oxygenated water production unit. and includes a control unit that stores the normal organic matter concentration range of the treated water oxidized by the primary oxidation unit and the normal dissolved oxygen concentration range of the oxygenated water generated by the oxygenated water production unit, controls the operating intensity of the primary oxidation unit to increase if it is determined that the organic matter concentration detected by the organic matter concentration sensor exceeds the normal organic matter concentration range, and controls the operating intensity of the oxygenated water production unit to increase if it is determined that the dissolved oxygen concentration measured by the dissolved oxygen measurement sensor falls below the normal dissolved oxygen concentration range; an oxidation treatment pipe connecting the primary oxidation unit and the oxygenated water production unit; an oxidation bypass pipe branching from a point on the oxidation treatment pipe and connecting to the oxygenated water production unit; and an oxidation selection valve disposed at the branching point between the treatment pipe and the bypass pipe to selectively connect the treatment pipe and the bypass pipe.A river inflow water quality and odor improvement device comprising: a secondary oxidation unit disposed between the primary oxidation unit and the oxygen water production unit, which supplies a plurality of oxidizing agents to generate high-concentration radicals for secondary oxidation; wherein the control unit stores the critical organic matter concentration of the treated water oxidized by the primary oxidation unit, and if it is determined that the organic matter concentration detected by the organic matter concentration sensor exceeds the critical organic matter concentration, the control unit controls the secondary oxidation unit to operate while the treated water oxidized by the primary oxidation unit is connected to the bypass pipe. Claim 3 A device for improving the water quality and odor of river inflow water, comprising: a microfiltration unit for removing particulate matter in the inflow water flowing in from a river; a primary oxidation unit for supplying microbubbled ozone to the water microfiltered by the microfiltration unit and applying at least one of ultrasound and ultraviolet rays to the inflow water supplied with ozone to perform primary oxidation; an oxygen water production unit for producing oxygenated water by dissolving oxygen in the treated water oxidized by the primary oxidation unit; an oxygenated water discharge unit for discharging the produced oxygenated water into a river; and a sensor unit comprising an organic matter concentration sensor disposed downstream of the primary oxidation unit for detecting the organic matter concentration of the oxidized treated water and a dissolved oxygen measurement sensor for measuring the dissolved oxygen concentration of the oxygenated water produced by the oxygenated water production unit. and includes a control unit that stores the normal organic matter concentration range of the treated water oxidized by the primary oxidation unit and the normal dissolved oxygen concentration range of the oxygenated water generated by the oxygenated water production unit, controls the operating intensity of the primary oxidation unit to increase if it is determined that the organic matter concentration detected by the organic matter concentration sensor exceeds the normal organic matter concentration range, and controls the operating intensity of the oxygenated water production unit to increase if it is determined that the dissolved oxygen concentration measured by the dissolved oxygen measurement sensor falls below the normal dissolved oxygen concentration range; the oxygenated water discharge unit includes an oxygenated water discharge pipe that provides a path for discharging the generated oxygenated water into a river, and an oxygenated water production circulation pipe connecting a point on the oxygenated water discharge pipe and the front end of the oxygenated water production unit;A river inflow water quality and odor improvement device further comprising an oxygen water production selection valve disposed at the branching point of the oxygen water discharge pipe and the circulation pipe and selectively connecting the oxygen water discharge pipe and the circulation pipe, wherein the control unit stores the critical dissolved oxygen concentration of the oxygen water generated by the oxygen water production unit, and when it is determined that the dissolved oxygen concentration measured by the dissolved oxygen measurement sensor is less than the critical dissolved oxygen concentration, the control unit controls the oxygen water production selection valve to be connected to the upstream end of the oxygen water production unit, and controls the operating intensity of the oxygen water production unit to increase. Claim 4 In claim 3, the oxygen water production unit is characterized by dissolving oxygen in water using a membrane contact method or a bubble diffusion method, in a river inflow water quality and odor improvement device. Claim 5 A river inflow water quality and odor improvement device according to claim 2 or 3, wherein the sensor unit further includes a water level sensor for detecting the water level of a river, and further includes a river water inflow unit comprising an inflow pipe connected to the microfiltration unit while immersed in the river at one end and an inflow pump disposed on the inflow pipe for driving river water from the river, and wherein the control unit stores the minimum critical water level and the maximum critical water level of the river, controls the inflow pump to stop the river water inflow when it is determined that the river water level detected by the water level sensor has dropped to the minimum critical water level, and controls the inflow pump to increase the operating intensity of the oxygen water production unit while controlling the river water inflow when it is determined that the river water level detected by the water level sensor has reached the maximum critical water level.

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