KR100762171B1 - Simplicity clean water treatment apparatus by fabrication method - Google Patents

Abstract

A prefabricated simple water purifying apparatus which enables a low load operation to be performed by purifying raw water in a small purification facility through a simple water purification process, and maximizes the treatment efficiency and performs water purification more stably by eliminating general bacteria, Escherichia coli, virus and other pathogenic microorganisms contained in raw water is provided. A prefabricated simple water purifying apparatus comprises: a filtration tank(10) which is formed in the form of a cylindrical body, of which an outer circumference is formed in such a shape that an upper portion of the outer circumference is wide while a lower portion thereof is narrow, of which upper and lower portions are opened and sealed respectively, and which has a sealing ring(11) inserted onto an upper portion thereof, an inner cylindrical pipe(12) formed in the center thereof, a plurality of anchor bolts formed on the bottom thereof, and mesh supporting rings(14-16) formed on an inner circumference thereof; an aeration tank including a transparent acryl cover(21) placed on the top of the filtration tank, a raw water inflow pipe horizontally penetrated into one side of the transparent acryl cover, an operation grooved part(23) which is formed in the center of the transparent acryl cover, in which a disinfectant tank(24) and an air feeder(25) are separately formed, and which is covered by a cover(23a), and a spiral aerating pipe(27) formed on the air feeder; a coagulation tank for advanced treatment including a fixed plate(31) closely adhered to the bottom of the filtration tank, an isolating pipe(32) isolated from the aeration tank and projected to a lower side of the inner cylindrical pipe from a lower end of the inner cylindrical pipe, a stepped height formed on a line extending from the bottom of the inner cylindrical pipe, a supporting plate(34) horizontally formed on a lower part of the fixed plate, a disinfection pipe(36) which is fixed to the supporting plate, and of which a lower end is connected to a circular injection port(37), a crucible catching ring(38) formed on an upper portion of the disinfection pipe, and a plurality of adsorption meshes(39) formed on an inner circumference of the isolating pipe; and a disinfection tank(40) having a mechanical pressure and water level sensor(50) vertically installed in an inner center thereof as a cylindrical body formed below the supporting plate of the coagulation tank for advanced treatment.

Description

Simplicity clean water treatment apparatus by fabrication method

1 is a perspective view showing a state of a prefabricated simple water treatment apparatus according to an embodiment of the present invention;

Figure 2 is an exploded perspective view showing a fastening of the prefabricated simple water treatment apparatus according to an embodiment of the present invention,

Figure 3 is a side cross-sectional view showing the operation of the prefabricated simple water purification apparatus according to an embodiment of the present invention,

Figure 4 is an enlarged side cross-sectional view showing a mechanical pressure level sensor of the prefabricated simple water treatment apparatus according to the present invention,

5 is an operation connection diagram of the controller of the prefabricated simple water treatment apparatus according to the embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10: filtration tank 11: sealing ring

12: internal clearance 13: anchor bolt

14,15,16: Network support ring 14a, 15a, 16a: Mass small Mars adsorption network

17 pump 18 supply pipe

20: aeration tank 21: transparent acrylic cover

22: raw water inlet pipe 23: operation required

23a: cover 24: disinfectant bath

25: air supply 26: valve 1

27: spiral aeration pipe 28: aeration hole

30: coagulation tank 31: fixed plate

31a: Anchor Ball 31b: Nut

32: containment tube 33: step

34: support plate 34a: overflow hole

35: valve 3 35a: valve 2

36: disinfection tube 36a: cruciform support

36b: Nut 37: circular nozzle

38: hook ring 39: adsorption network

40: disinfection tank 41: water discharge pipe

42: valve 4 50: mechanical pressure level sensor

51: circular cylinder 52: through hole

53: pressed ball 53a: spring

54,54a: Electric terminal 55: Operating groove

56: elevating bar 57: float ball

58: elevating electricity 60: controller

The present invention relates to a prefabricated simple water purification apparatus, and more particularly, through a plurality of multi-stage active adsorption network through filtration treatment means and natural light sterilization treatment means and aeration treatment means and adsorption treatment means and inner treatment means By simply treating the inflow of raw water into a small facility through a simple water treatment process, it is operated on a small scale with low budget, preventing overload operation of the whole device, enabling low load operation, and general bacteria and coliforms in various effluents contained in the treated water. The present invention relates to a prefabricated simple water treatment device capable of maximizing treatment efficiency and allowing more stable water treatment by removing and killing viruses and other pathogenic microorganisms.

It is well known that there is a lack of awareness of environmental conservation in the course of rapid economic development. Due to this lack of awareness of environmental conservation, the level of pollution as well as air quality has reached a very serious level. In particular, domestic sewage, agricultural and livestock waste, and industrial wastewater cause pollution of public waters such as appeals, inner bays and inland seas, and urban small and medium rivers.

Therefore, the achievement rate of Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD), which are related to total nitrogen (N) and total phosphorus (P) such as appeal due to water pollution, internal bay and inland sea, are very low. . Moreover, since rivers, lakes and dams are often drinking water sources, mold odors, filter disturbances, and abnormal growth of toxic algae have become a major environmental problem as well as lack of water resources.

On the other hand, before industrial development is high, contaminants in household sewage, agricultural and livestock wastewater, and industrial wastewater are mainly organic matter that can be decomposed by certain microorganisms, whereas in recent years, rapid industrial development, population growth, and urban population Due to the concentration of water, the proportion of inorganic and organic components in the wastewater is gradually increasing.In the case of industrial wastewater, COD (Chemical Oxygen Demand), BOD (Biochemical Oxygen Demand), It contains high concentrations of organic matter such as SS (suspension), nitrogen, and phosphorus, and if it flows directly into rivers, lakes and dams, it leads to pollution of water resources such as eutrophication and destruction of ecosystem due to toxicity. Adversely affects the environment. Therefore, the industrial wastewater is set to a certain standard and purged and discharged below a predetermined standard value.

In particular, many countries in the world have been devising ways to install disinfection facilities in sewage treatment plants in connection with virus detection of tap water.In our case, since January 2003, E. coli bacteria have been established in the water quality standards of sewage treatment plants. It is inevitable that it is time to do it.

Summarizing the main goals of the establishment of E. coli bacteria according to the water quality standards of the sewage treatment plant described above, the sewage treatment plant in the area affecting the water quality of the drinking water source should be disinfected when the number of coliform bacteria in the treated water (effluent) is more than 1,000 / ml. It must be mandatory to clean the area pursuant to Annex 5 of the Enforcement Regulations of the Water Quality Preservation Act, the water supply protection area pursuant to Article 5 of the Water Act, and the area within 10 km upstream from its boundary, and the Water Act Article 3-15. It is an area within 15km of upstream from the water intake facility according to the regulations. In addition, sewage treatment plants in other regions, where the impact on the water quality of water sources is relatively low, are also required to install disinfection facilities when the coliform count is more than 3,000 / ml. Therefore, it can be said that the microbial disinfection facilities of the discharged water according to the treatment of sewage, sewage and wastewater.

On the other hand, in the case of the industry, the process water introduced when using the process water acts as a cause of lowering the quality of the process product due to the growth of microorganisms. For this reason, conventionally, a method for disinfecting process water is used to remove pathogenic microorganisms through chlorine disinfection and ultraviolet disinfection.

As described above, in the case of chlorine disinfection currently used, disinfection facilities tend to be discontinued due to the risk of disinfection by-product THM (trihalomethane), impact on aquatic plants, and the like. In practice, chlorine treated sewage has been shown to have acute or chronic toxicity to aquatic plants and to reduce species and numbers of fish. In Korea, difficulties arise in the method of selecting disinfection due to lack of installation area and operating technology accumulation for disinfection methods other than chlorine disinfection. Chlorine disinfection equipment has a problem that the initial investment cost is about twice that of ultraviolet disinfection. have.

In addition, in recent years, ultraviolet disinfection apparatus has been developed and is actually installed and used in various water treatment plants. In the case of chlorine disinfection, environmental problems such as closed waters and aquatic organisms are urgently needed in developed countries.

The area is gradually changing to ultraviolet (UV) disinfection. However, in the case of such ultraviolet disinfection, there is a problem that the initial investment cost is expensive, and in terms of maintenance, it is necessary to replace the expensive ultraviolet lamp periodically.

In addition, UV disinfection as described above is inactivation of the microorganisms by the photo-oxidation effect on the DNA and when the light is received, the DNA of the microorganisms damaged by the light recovery effect is activated to recover the UV disinfection. Tend to be reluctant. Damaged DNA can be repaired by fluorescence or sunlight. In addition, ultraviolet irradiation dose should be maintained in the same condition as the initial state, but the performance is gradually degraded with the use of the lamp has the disadvantage that the disinfection ability decreases with the passage of time. If the initial performance of the lamp is reduced, the 254nm wavelength emission function of the lamp is reduced, the sterilization effect is reduced.

On the other hand, in order to meet the water quality regulation by applying a single treatment method in a situation where the inflow of inflow water is not constant, there is a problem that excessive treatment costs are required. Recently, various treatment methods are complementary to each other rather than a single treatment method. Is being used. In other words, recently, physical methods, chemical methods, and biological methods have been fused and applied in a complementary manner.

The present invention is to solve the above problems, a simple water treatment through a plurality of multi-stage active adsorption network filtration treatment means and natural light sterilization treatment means and aeration treatment means and adsorption treatment means and a rapid treatment means Through the process, the influent water is purified to a small facility, so it is easily operated at a small budget to prevent overload operation of the entire device, to enable low load operation, and to general bacteria, E. coli, virus, and various effluents in the treated water. It is an object of the present invention to provide a prefabricated simple water treatment device that can maximize the treatment efficiency by allowing the killing and removal of other pathogenic microorganisms can be more stable water treatment.

In order to achieve the above object, the present invention is a cylindrical body whose outer periphery is open to the upper and lower openings and the lower part is sealed, the sealing ring is fitted at the upper end of the body, and the inner periphery is vertically erected upward at the center of the body. It has an inner tube through which it is formed, and a plurality of anchor bolts erected upright are formed on the bottom, and the upper and lower portions of the inner circumference are each V-shaped in cross section, and the inner side is lower than the outer side. A mesh support ring, which is a ring chain on which an active adsorption network of each is seated, is formed to filter contaminants or impurities of the introduced raw water in multiple stages, and then the filtered raw water is guided to the upper portion of the inner tube through a supply pipe through a pump at the bottom. A filtration tank;

The side surface seated on the upper end of the filtration tank is formed an arc-shaped transparent acrylic cover to enable natural light, but to enable sterilization of raw water using ultraviolet rays, one side of the transparent acrylic cover supplies the raw water to the inner circumference of the upper end of the filtration tank Raw water inlet pipe is formed to penetrate horizontally, protruding downward in the center of the transparent acrylic cover is formed so that the disinfection solution tank and the air supply are isolated from each other, the operating recess is formed by the top is sealed by the cover. The air supply of the aeration tank extending from the inner center of the inner tube through the valve 1 to the lower portion is wound in the snail shape of the upper and lower light and has a plurality of aeration holes in the body to form a spiral aeration pipe for aeration to oxidize the raw water;

An anchor hole corresponding to the anchor bolt is formed and fixed by a nut to form a fixing plate which is fixed to the lower end of the filtration tank, and protrudes from the lower end of the inner tube inside the fixing plate to the lower portion of the inner tube, the spiral width pipe and the spiral An isolation pipe is formed to be in close contact with the aeration tank so as to be in close contact with the aeration tank, and a step is formed on the lower extension line of the inner tube, and is horizontally positioned below the fixing plate so that the side end is fixed in close contact with the bottom surface of the fixing plate. A backing plate is formed in which a plurality of overflow holes are formed. The support plate is formed through the sanitizing solution tank and the valve 3, and the upper part of the spiral tube is connected to the upper part by the valve 2 and vertically extended downward through the center side of the separator tube. It is penetrated by being sealed by the nut through the cross support on the support plate. The end is formed in a circular shape is formed with a disinfection tube which is connected to the circular injection port for spraying disinfectant solution is formed in the upper end of the disinfection tube is formed with a hook ring is fixed to the upper end of the isolation tube, the inner disinfection tube of the center An agglomeration tank for advanced processing in which a plurality of adsorption nets for adsorbing oxides of aerated raw water are fixed in multiple stages to form a close contact therewith;

The circular cylinder is located at the bottom of the support plate of the coagulation tank for the advanced processing, the upper end is fixed in close contact with the bottom of the side end of the support plate, and the mechanical pressure level sensor is vertically installed at the inner center of the outlet pipe which is opened and closed by valve 4 at one lower end. The opening and closing degree is characterized in that it is provided with a disinfection tank to control the water discharge in multiple stages.

The mechanical pressure level sensor of the disinfection tank comprises a circular cylinder having a plurality of through holes formed at left and right sides; The elevating current is fixed to the center of the circular cylinder perpendicular to the lifting ball one side is elastically protruded to the outside by a spring, but the inner end of the center of the upper and lower ends are provided with a plurality of operating grooves are provided with a pair of conducting terminals energized by the pressing ball Bar; Inserted into the elevating conduction bar and ascends to buoyancy by the water level inside the disinfection tank and presses the plurality of pressing balls installed at regular intervals according to the water level into the operation groove to energize the conduction terminal to the detected level according to the set value set in the controller. Thereby, it characterized in that it is provided with a float ball having a lifting through hole which guides the opening and closing degree of the valve 4.

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

1 is a perspective view showing the appearance of the prefabricated simple water treatment apparatus according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing a fastening of the prefabricated simple water treatment apparatus according to the embodiment of the present invention, Figure 3 is a prefabricated simple integer according to an embodiment of the present invention. 4 is an enlarged side cross-sectional view illustrating a mechanical pressure level sensor of a prefabricated simple water treatment device according to an embodiment of the present invention, and FIG. 5 is a controller of the prefabricated simple water treatment device according to an embodiment of the present invention. The working connection diagram of.

For reference, in describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof is omitted.

In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator.

Therefore, the definition should be made based on the contents throughout the specification.

The prefabricated simple water treatment apparatus of the present invention, the filtration tank 10 for filtering the raw water introduced into the raw water inlet pipe 22 in multiple stages by natural falling, and the aeration tank for aeration to oxidize the filtered raw water and disinfection by natural light ( 20), an agglomeration tank 30 for adsorbing the oxidized raw water, and a disinfection tank 40 for disinfecting and releasing the adsorbed raw water.

The filtration tank 10 is an outer periphery for filtering the raw water introduced into the raw water inlet pipe 22 in multiple stages by natural falling into the upper and lower straits, and the lower part of the cylindrical body, the upper end of the sealing ring 11. It is fitted, the body has a vertical tube is vertically erected upwards and the inner circumference penetrates up and down 12, the bottom surface is formed with a plurality of anchor bolts 13 upright fixed to the bottom, the upper and lower inner circumference In each section, the cross section is V-shaped and the inner surface is lower than the outer surface, and in the center is a ring body mesh support ring (14, 15, 16), in which large, medium and small active adsorption networks (14a, 15a, 16a) are respectively seated. ) Is formed to filter the contaminants or impurities of the introduced raw water in multiple stages, and then the filtered raw water is guided and supplied to the inner tube 12 through the supply pipe 18 through the lower pump 17.

The aeration tank 20 is a place where the process of aeration and oxidation of the filtered raw water and disinfection by natural light is formed, forming a transparent acrylic cover 21 having an arc-shaped side cross section seated on the top of the filtration tank 10. Natural light is possible, but raw water can be sterilized using ultraviolet rays, and a raw water inlet pipe 22 for supplying raw water to the inner circumference of the upper end of the filtration tank 10 is formed on one side of the transparent acrylic cover 21. And, the center of the transparent acrylic cover 21 is formed to protrude to the lower portion is formed in the disinfecting solution tank 24 and the air supply 25 is isolated therein, respectively, the upper end of the operation recess 23 is fixed by the cover (23a) ) Is formed, the air supply 25 of the operation recess 23 extends downwardly from the inner center of the inner tube 12 through the valve 1 (26) is wound in a snail shape of the upper and lower light beams and a plurality of aeration holes in the body Have 28 The width of the spiral pipe (27) for oxidizing the raw water by aeration are formed.

The advanced processing coagulation tank 30 is a process of adsorbing the oxide of the oxidized raw water, the anchor hole (31a) corresponding to the anchor bolt 13 is formed and fixed by the nut (31b) the filter tank ( 10) is fixed to the bottom fixed plate 31 is formed, protrudes from the inner tube 12 to the lower end of the inner tube (12) inside the fixing plate 31 is formed in close contact with the spiral width pipe (27) in a spiral An isolation pipe 32 is formed to be separated by the upper and lower light so as to be isolated from the aeration tank 20, and a step 33 is formed on the lower extension line of the inner tube 12, and horizontally below the fixing plate 31. Is positioned and the side end is fixed in close contact with the bottom surface of the fixed plate 31 side end plate 34 is formed with a plurality of overflow holes (34a) at the upper end, through the sanitizing solution 24 and the valve 3 (35) It is piped and piped by the upper part of the spiral width pipe 27 and the valve 2 (35a) Vertically extended downwardly through the center side of the isolation tube 32, the lower portion of the support plate 34 through the cross-shaped support (36a) is fixed by the nut (36b) and penetrated to be sealed and the bottom is formed in a circular disinfectant solution A disinfection tube 36 is formed in which a circular injection hole 37 for disinfecting the bath 24 is formed, and a cross-shaped locking ring is fixed to the upper end of the isolation tube 32 by the upper end of the disinfection tube 36. 38) is formed, and a plurality of adsorption nets 39 are formed in close contact with the inner circumference of the isolation tube 32 to adsorb the oxide of the aerated raw water by being multi-stage fixed to the central disinfection tube 36.

The disinfection tank 40 is a process of discharging the raw water treated by the adsorption is made, the circular cylinder which is located under the support plate 34 of the coagulation tank 30 for the advanced processing, the upper support plate 34 Closely fixed to the bottom of the side end, the mechanical pressure water level sensor 50 is vertically installed at the inner center to open and close the opening and closing degree of the outlet pipe 41, which is opened and closed by the valve 4 (42) at one lower end in multiple stages according to the internal water level. Adjust water output.

The mechanical pressure level sensor 50 of the disinfection tank 40 is a circular cylinder 51 formed with a plurality of through holes 52 on the left and right sides, and is vertically fixed to the center of the circular cylinder 51 while being pressed by a ball 53. One side is elastically protruded to the outside by the spring (53a), but a plurality of operating grooves (55, 54a) are formed in the upper and lower inner end of the pair of energizing terminals (54, 54a) are energized by the pressing ball (53) The elevating conduction bar 56 is inserted into the elevating conduction bar 56 and is operated by the plurality of pressing balls 53 installed at a predetermined interval depending on the water level while being elevated by buoyancy by the water level in the disinfection tank 40. An elevating energizing hole 58 in which the opening and closing degree of the valve 4 42 is induced by the level detected by the set value set in the controller 60 by energizing the energizing terminals 54 and 54a by pressing into the groove 55. It is composed of a float ball 57 having.

The present invention, through the raw water inlet pipe 22 through the mesh support ring 14 having a large active adsorption network 14a of the upper portion of the filter tank 10, and again the small and medium active adsorption network (15a) After the foreign matter or impurities of the raw water are caught while passing through the mesh support rings 15 and 16 having the 16a step, respectively, the inner tube is introduced through the supply pipe 18 by the pump 17 under the filtration tank 10. 12) When raw water is supplied to the inside, oxygen is introduced by the spiral width pipe 27 in the aeration tank 20 above the isolation pipe 222 to oxidize small foreign substances or impurities included in the raw water, and thus the raw water oxidized. Is introduced into the high-density coagulation tank 30 inside the isolation tube 32 through the top of the isolation tube 32, the oxide contained in the raw water is sequentially adsorbed, filtered through a plurality of adsorption network 39 Through the support plate 34 and the overflow hole 34a in the lower portion of the coagulation tank 30 for advanced processing, The disinfectant solution of the disinfectant solution 24 is injected through the circular spraying unit 37 by flowing into the disinfectant tank 40 to kill general bacteria, E. coli, viruses, and other pathogenic microorganisms contained in the raw water.

In this state, when the water level of the raw water in the disinfection tank 40 rises, the buccal ball 57 inside the mechanical pressure level sensor 50 moves upward by buoyancy on the elevating conduction bar 56 inside the elevating conduction hole 58. While the natural rising, pushing the ball 53 of the operating groove 55 installed at a predetermined interval of the elevating conduction bar 36 pushes inward while overcoming the elasticity of the spring 53a to energize the conducting terminals 54 and 54a therein. When the final water level is sent while sending the water level to the controller 60, the controller 60 detects this and adjusts the opening and closing amount of the valve 4 42 of the water outlet pipe 41 to adjust the amount of raw water in the disinfection tank 40. The sterilized raw water is discharged to the outside within a constant range.

As described above, the present invention provides a small-scale inflow of raw water through a simple water treatment process using a plurality of multi-stage active adsorption networks, filtration means by natural light, sterilization means by natural light, and aeration treatment means, adsorption treatment means, and rapid treatment means. The water treatment facility can be operated on a small scale with low budget to prevent overload operation of the whole device, to enable low load operation, and to kill and eliminate common bacteria, E. coli, virus and other pathogenic microorganisms in the various effluents contained in the treated water. By making it possible to maximize the treatment efficiency and there is an effect that can be more stable water treatment.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (2)

The outer circumference is a cylindrical body whose upper part is opened by the upper and lower straits, and the lower part is sealed, and the sealing ring is fitted at the upper part of the body, and the inner center is vertically erected upwards at the center of the body and has an inner tube penetrating up and down. A plurality of anchor bolts, which are fixed upright, are formed in the upper and lower portions of the inner circumference, each having a V-shaped cross section and a lower inner surface than the outer surface, and having a large, medium and small active adsorption network in the center. A support ring is formed to filter contaminants or impurities of the introduced raw water in multiple stages, and then the filtered raw water guides the filtered raw water to the upper portion of the inner tube through a supply pipe through a lower pump; The side surface seated on the upper end of the filtration tank is formed an arc-shaped transparent acrylic cover to enable natural light, but to enable sterilization of raw water using ultraviolet rays, one side of the transparent acrylic cover supplies the raw water to the inner circumference of the upper end of the filtration tank Raw water inlet pipe is formed to penetrate horizontally, protruding downward in the center of the transparent acrylic cover is formed so that the disinfection solution tank and the air supply are isolated from each other, the operating recess is formed by the top is sealed by the cover. The air supply of the aeration tank extending from the inner center of the inner tube through the valve 1 to the lower portion is wound in the snail shape of the upper and lower light and has a plurality of aeration holes in the body to form a spiral aeration pipe for aeration to oxidize the raw water; As the anchor hole corresponding to the anchor bolt is formed and fixed by a nut, a fixing plate is formed to be tightly fixed to the lower end of the filtration tank, and is formed to protrude from the lower end of the inner tube inside the fixing plate to the lower portion of the inner tube. An isolation pipe is formed to be in close contact with the aeration tank so as to be in close contact with the aeration tank, and a stepped portion is formed on the lower extension line of the inner tube, and is horizontally positioned below the fixing plate so that the side end is fixed to the bottom of the fixing plate side end, A supporting plate is formed in which a plurality of overflow holes are formed in the support plate. The support plate is formed through the sanitizing solution tank and the valve 3, and is connected by the upper part of the spiral width pipe and the valve 2 and vertically extended downward through the center side of the separator pipe. A cross-shaped support is interposed on the support plate to be penetrated to be sealed while being fixed by a nut. The lower end is formed in a circular shape is formed with a disinfection tube which is connected to the circular injection port for spraying disinfectant solution, the upper end of the disinfection tube is formed with a hook to be fixed to the upper end of the isolation tube, the inner disinfection tube of the center An agglomeration tank for advanced processing in which a plurality of adsorption nets for adsorbing oxides of aerated raw water are fixed in multiple stages to form a close contact therewith; The circular cylinder is located at the bottom of the support plate of the coagulation tank for the advanced processing, the upper end is fixed in close contact with the bottom of the side end of the support plate, and the mechanical pressure level sensor is vertically installed at the inner center of the outlet pipe which is opened and closed by valve 4 at one lower end. Prefabricated simple water treatment device comprising a disinfection tank to control the opening and closing degree in multiple stages according to the internal water level. The method of claim 1; The mechanical pressure level sensor of the disinfection tank comprises a circular cylinder having a plurality of through holes formed at left and right sides; The elevating current is fixed to the center of the circular cylinder perpendicular to the lifting ball one side is elastically protruded to the outside by a spring, but the inner end of the center of the upper and lower ends are provided with a plurality of operating grooves are provided with a pair of conducting terminals energized by the pressing ball Bar; Inserted into the elevating conduction bar and ascends to buoyancy by the water level inside the disinfection tank and presses the plurality of pressing balls installed at regular intervals according to the water level into the operation groove to energize the conduction terminal to the detected level according to the set value set in the controller. Prefabricated water purification apparatus having a sub-ball having a lifting and lowering hole is guided by the opening and closing degree of the valve 4.

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