Special ozone disinfection device for epidemic prevention

Abstract

The invention discloses a special ozone disinfection device for epidemic prevention, which comprises an ozone generating unit, a gas inlet pipeline and a gas conveying pipeline, the water inlet unit comprises a water inlet pipeline and a water conveying pipeline; the wastewater treatment unit comprises a plurality of ozone reactors which are sequentially arranged from left to right, and the adjacent ozone reactors are connected in series through a water conveying pipeline and a gas conveying pipeline; the water inlet pipeline is connected with the bottom of the ozone reactor at the water inlet end; the ozone generating device is connected with the top of the ozone reactor at the water inlet end through a gas inlet pipeline, and the gas inlet pipeline extends downwards to the bottom of the ozone reactor along the ozone reactor. The ozone oxidation treatment efficiency is greatly improved, and the ozone oxidation treatment requirements of various types of sewage can be met.

Description

Technical Field

[0001] The invention relates to the technical field of ozone disinfection equipment, and in particular to a VTBR type ozone reactor used for disinfection of ship epidemic prevention sewage. Background Art

[0002] Ship quarantine sewage mainly refers to domestic sewage generated during the operation of ships, including black water and gray water. Black water includes discharges from toilets, urinals, infirmaries, etc., while gray water mainly comes from discharges from kitchens, bathing and laundry. The treatment of these sewage is crucial to preventing marine environmental pollution.

[0003] Domestic sewage treatment on ships usually adopts biochemical method, ozone oxidation tower, electrolysis method, etc. Among them, the general ozone oxidation tower occupies a large area and has high operating costs. Conventional reactors are mostly operated at normal pressure. The solubility of ozone in water is limited. The insufficient ozone supply for high-concentration wastewater affects the treatment effect, making it difficult to apply in the ship pollution prevention industry. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects existing in the prior art and provide an ozone disinfection device specially used for epidemic prevention. The device has a simple structural design. It is combined with ordinary chemical oxidation water treatment technology, coagulation filtration sedimentation technology, membrane bioreactor and other water treatment technologies to perform process combination treatment or deep treatment on the sewage generated in the ship's epidemic prevention functional area, thereby realizing water reuse. The treated ship wastewater can be returned to the ship's fresh water system process for use as recycled water or discharged in compliance with standards.

[0005] To achieve the above purpose, the technical solution of the present invention is to design an ozone disinfection device for epidemic prevention, which includes An ozone generating unit, including an ozone generating device, an air inlet pipeline and a gas transmission pipeline; A water inlet unit, including a water inlet pipeline and a water delivery pipeline; A wastewater treatment unit, comprising an ozone reactor, wherein a plurality of the ozone reactors are arranged in sequence from left to right, and adjacent ozone reactors are connected in series through a water pipeline and a gas pipeline; The water inlet pipe is connected to the bottom of the ozone reactor at the water inlet end through a sewage pump; the ozone generator is connected to the top of the ozone reactor at the water inlet end through an air inlet pipe, and the air inlet pipe extends downward along the ozone reactor to the bottom of the ozone reactor.

[0006] Furthermore, the wastewater treatment unit comprises a mounting seat, and a plurality of the ozone reactors are mounted on the mounting seat. A plurality of drain channels are provided on the mounting seat, and each of the drain channels is located between two ozone reactors.

[0007] Furthermore, the ozone reactor is provided with four groups, namely a first-stage ozone reactor, a second-stage ozone reactor, a third-stage ozone reactor, and a fourth-stage ozone reactor.

[0008] Furthermore, the water pipeline includes a primary water pipeline, a secondary water pipeline, a tertiary water pipeline, a quaternary water pipeline, a primary branch pipeline, a secondary branch pipeline and a tertiary branch pipeline, one end of the primary water pipeline extends from the bottom of the first-stage ozone reactor to the top thereof, the other end of the primary water pipeline is connected to the bottom of the second-stage ozone reactor through a sewage pump, and the primary water pipeline is connected to the drain waterway through a primary branch pipeline; One end of the secondary water pipeline extends from the bottom of the second-stage ozone reactor to the top thereof, the other end of the secondary water pipeline is connected to the bottom of the third-stage ozone reactor via a sewage pump, and the secondary water pipeline is connected to the drain waterway via a secondary branch pipeline; One end of the three-stage water pipeline extends from the bottom of the third-stage ozone reactor to the top thereof, the other end of the three-stage water pipeline is connected to the bottom of the fourth-stage ozone reactor through a sewage pump, and the three-stage water pipeline is connected to the emptying waterway through a three-stage branch pipeline; One end of the four-stage water delivery pipeline extends from the bottom of the fourth-stage ozone reactor to the top thereof, and the other end of the four-stage water delivery pipeline penetrates the bottom of the fourth-stage ozone reactor.

[0009] Furthermore, the gas pipeline includes a primary gas pipeline, a secondary gas pipeline, and a tertiary gas pipeline; The air inlet end of the first-stage gas pipeline is arranged at the top of the first-stage ozone reactor, and the outlet end of the first-stage gas pipeline enters the second-stage ozone reactor and extends to the bottom; The air inlet end of the secondary air pipeline is arranged at the top of the second-stage ozone reactor, and the outlet end of the secondary air pipeline enters the third-stage ozone reactor and extends to the bottom; The air inlet end of the three-stage gas pipeline is arranged at the top of the third-stage ozone reactor, and the outlet end of the three-stage gas pipeline enters the fourth-stage ozone reactor and extends to the bottom. Furthermore, it also includes a recovery pipeline, the air inlet end of the recovery pipeline is arranged at the top of the fourth-stage ozone reactor, and the outlet end of the recovery pipeline is connected to the ozone generating unit.

[0010] Furthermore, the ozone generating unit further comprises an aeration head, and the outlet ends of the air inlet pipeline, the primary gas pipeline, the secondary gas pipeline, and the tertiary gas pipeline are all connected to the aeration head.

[0011] Furthermore, the water inlet unit also includes a water storage tank, and the water storage tank is connected to the water inlet pipe.

[0012] Furthermore, the pressure in the four groups of ozone reactors is 0-0.4 Mpa; the sewage treatment temperature is 15-45°C, and the treatment time is 9-60 hours.

[0013] Furthermore, the ozone reactor adopts a VTBR reactor, and the monomer diameter of the VTBR reactor is 1-3 meters.

[0014] The advantages and beneficial effects of the present invention are: (1) The device can be used in conjunction with other sewage treatment devices to achieve the purpose of deep treatment and reuse of sewage. In the future, it can be widely used in the domestic sewage treatment industry in the epidemic prevention functional area of ​​the ship industry, and has broad application prospects.

[0015] (2) The device has a simple structural design. It is combined with other water treatment technologies such as ordinary chemical oxidation water treatment technology, coagulation filtration sedimentation technology and membrane bioreactor to carry out process combination treatment or deep treatment of sewage generated in the ship's epidemic prevention functional area, which can achieve water reuse. The treated ship wastewater can be returned to the ship's fresh water system process for use as recycled water or discharged in compliance with standards.

[0016] (3) The ozone advanced oxidation treatment is carried out through a four-stage ozone oxidation vertical baffled reactor. The pressure in the entire treatment system is 0-0.4MPa, the temperature is 15-45°C, and the treatment time is 9-60 hours. Viruses and microorganisms can be killed and the discharge water standard of infectious disease hospitals GB / T18466-2005 can be achieved. The present invention greatly improves the treatment efficiency of ozone oxidation and can meet the needs of ozone oxidation treatment of various types of sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an ozone disinfection device for epidemic prevention according to the present invention; Figure 2 yes Figure 1 A partial enlarged view of middle A; In the figure: ozone generator 1, air inlet pipe 2, water inlet pipe 3, mounting base 4, drain water channel 5, first-stage ozone reactor 6, second-stage ozone reactor 7, third-stage ozone reactor 8, fourth-stage ozone reactor 9, first-stage water pipeline 10, second-stage water pipeline 11, third-stage water pipeline 12, fourth-stage water pipeline 13, first-stage branch pipeline 14, second-stage branch pipeline 15, third-stage branch pipeline 16, first-stage gas pipeline 17, second-stage gas pipeline 18, third-stage gas pipeline 19, recovery pipeline 20, aeration head 21, water storage tank 22. DETAILED DESCRIPTION

[0018] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0019] according to Figure 1 and 2 As shown, the present invention is an ozone disinfection device for epidemic prevention, which includes The ozone generating unit comprises an ozone generating device 1, an air inlet pipeline 2 and a gas transmission pipeline; A water inlet unit, comprising a water inlet pipe 3 and a water delivery pipe; A wastewater treatment unit, comprising an ozone reactor, wherein a plurality of the ozone reactors are arranged in sequence from left to right, and adjacent ozone reactors are connected in series through a water pipeline and a gas pipeline; The water inlet pipe 3 is connected to the bottom of the ozone reactor at the water inlet end through a sewage pump; the ozone generating device is connected to the top of the ozone reactor at the water inlet end through an air inlet pipe 2, and the air inlet pipe 2 extends downward along the ozone reactor to the bottom of the ozone reactor.

[0020] As a preferred embodiment of the above technical solution, the wastewater treatment unit includes a mounting base 4, and a plurality of ozone reactors are mounted on the mounting base 4. A plurality of drain channels 5 are provided on the mounting base 4, and each of the drain channels 5 is located between two ozone reactors.

[0021] As a preferred embodiment of the above technical solution, the ozone reactor is provided with four groups, namely a first-stage ozone reactor 6, a second-stage ozone reactor 7, a third-stage ozone reactor 8, and a fourth-stage ozone reactor 9.

[0022] As a preferred embodiment of the above technical solution, the water pipeline includes a primary water pipeline 10, a secondary water pipeline 11, a tertiary water pipeline 12, a quaternary water pipeline 13, a primary branch pipeline 14, a secondary branch pipeline 15 and a tertiary branch pipeline 16, one end of the primary water pipeline 10 extends from the bottom of the first-stage ozone reactor 6 to the top thereof, the other end of the primary water pipeline 10 is connected to the bottom of the second-stage ozone reactor 7 through a sewage pump, and the primary water pipeline 10 is connected to the drain 5 through a primary branch pipeline 14; One end of the secondary water pipeline 11 extends from the bottom of the second-stage ozone reactor 7 to the top thereof, and the other end of the secondary water pipeline 11 is connected to the bottom of the third-stage ozone reactor 8 via a sewage pump. The secondary water pipeline 11 is connected to the drain channel 5 via a secondary branch pipeline 15; One end of the tertiary water pipeline 12 extends from the bottom of the third-stage ozone reactor 8 to the top thereof, and the other end of the tertiary water pipeline 12 is connected to the bottom of the fourth-stage ozone reactor 9 through a sewage pump, and the tertiary water pipeline 12 is connected to the drain waterway 5 through a tertiary branch pipeline 16; One end of the fourth-stage water delivery pipeline 13 extends from the bottom of the fourth-stage ozone reactor 9 to the top thereof, and the other end of the fourth-stage water delivery pipeline 13 penetrates the bottom of the fourth-stage ozone reactor 9 and is arranged.

[0023] As a preferred embodiment of the above technical solution, the gas pipeline includes a primary gas pipeline 17, a secondary gas pipeline 18, and a tertiary gas pipeline 19; The air inlet end of the first-stage air pipeline 17 is arranged at the top of the first-stage ozone reactor 6, and the outlet end of the first-stage air pipeline 17 enters the second-stage ozone reactor 7 and extends to the bottom; The air inlet end of the secondary air pipeline 18 is arranged at the top of the second-stage ozone reactor 7, and the outlet end of the secondary air pipeline 18 enters the third-stage ozone reactor 8 and extends to the bottom; The air inlet end of the tertiary air pipeline 19 is arranged at the top of the third-stage ozone reactor 8, and the outlet end of the tertiary air pipeline 19 enters the fourth-stage ozone reactor 9 and extends to the bottom.

[0024] As a preferred embodiment of the above technical solution, it also includes a recovery pipeline, wherein the air inlet end of the recovery pipeline 20 is arranged at the top of the fourth-stage ozone reactor 9, and the outlet end of the recovery pipeline 20 is connected to the ozone generating unit.

[0025] As a preferred embodiment of the above technical solution, the ozone generating unit further includes an aeration head 21 , and the outlet ends of the air inlet pipe 2 , the primary air pipeline 17 , the secondary air pipeline 18 , and the tertiary air pipeline 19 are all connected to the aeration head 21 .

[0026] As a preferred embodiment of the above technical solution, the water inlet unit further includes a water storage tank 22 , and the water storage tank 22 is connected to the water inlet pipe 3 .

[0027] As a preferred embodiment of the above technical solution, the pressure in the four groups of ozone reactors is 0-0.4 Mpa; the sewage treatment temperature is 15-45°C, and the treatment time is 9-60 hours.

[0028] As a preferred embodiment of the above technical solution, the four groups of ozone reactors all adopt VTBR reactors, and the monomer diameter of the VTBR reactors is 1-3 meters.

[0029] The sewage ozone oxidation treatment process is to send the sewage that has been deeply treated by the biofilm method to the bottom of the first-stage ozone VTBR reactor through the sewage pump according to the actual treatment volume required. The ozonated gas sent by the ozone generator through the air inlet pipe is mixed with the sewage through the aeration head. The sewage after the primary treatment enters the primary water pipeline or overflows from the top and enters the emptying waterway. Then, the sewage is discharged into the bottom of the second-stage ozone VTBR ozone reactor through the primary water pipeline and the primary branch pipeline, and then enters the final third and fourth stages in turn. The treated sewage is finally discharged through the fourth-stage water pipeline. Example 1

[0030] First, in this embodiment, the sewage treated by the membrane method is sent to the first-stage ozone reactor by a sewage pump and mixed with the ozonated gas generated by the ozone generator. The gas-liquid mixture then enters the subsequent second, third, and fourth-stage VTBR reactors in sequence to carry out efficient ozone advanced oxidation reactions. After gas-liquid separation in the fourth-stage ozone reactor, the gas is discharged from the exhaust port and repeatedly circulated back to the ozone generator to regenerate ozonated gas and be recycled in the reaction system, while the treated water is discharged from the fourth-stage water pipeline.

[0031] The membrane treatment water treatment capacity is 100t / d, the organic matter concentration in the sewage (expressed as COD) is 100mg / L, TSS is 100 mg / L, Escherichia coli and other harmful microorganisms are 500MPN / L, and the reaction process of the ozone oxidation tower is as follows: Figure 1 As shown, the operating pressure is 0-0.4MPa, the temperature is 15-45℃, and the complete treatment time is 9.6h. When the sewage treatment facility produces water with COD≤25mg / L, TSS≤35 mg / L, Escherichia coli and other harmful microorganisms≤100MPN / L, a 4-stage tower process is adopted, with each tower having a height of 2.5m and a monomer diameter of 1m.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A special ozone disinfection device for epidemic prevention, characterized in that: It includes An ozone generating unit comprises an ozone generating device (1), an air intake pipeline (2) and a gas transmission pipeline; A water inlet unit, comprising a water inlet pipe (3) and a water delivery pipe; A wastewater treatment unit, comprising an ozone reactor, wherein a plurality of the ozone reactors are arranged in sequence from left to right, and adjacent ozone reactors are connected in series through a water pipeline and a gas pipeline; The water inlet pipe (3) is connected to the bottom of the ozone reactor at the water inlet end; the ozone generating device is connected to the top of the ozone reactor at the water inlet end via an air inlet pipe (2), and the air inlet pipe (2) extends downward along the ozone reactor to the bottom of the ozone reactor.

2. The ozone disinfection device for epidemic prevention according to claim 1 is characterized in that: The wastewater treatment unit comprises a mounting seat (4), a plurality of ozone reactors are mounted on the mounting seat (4), a plurality of drain channels (5) are provided on the mounting seat (4), and each drain channel (5) is located between two ozone reactors.

3. The ozone disinfection device for epidemic prevention according to claim 2 is characterized in that: The ozone reactor is provided with four groups, namely a first-stage ozone reactor (6), a second-stage ozone reactor (7), a third-stage ozone reactor (8), and a fourth-stage ozone reactor (9).

4. The ozone disinfection device for epidemic prevention according to claim 3 is characterized in that: The water pipeline comprises a primary water pipeline (10), a secondary water pipeline (11), a tertiary water pipeline (12), a quaternary water pipeline (13), a primary branch pipeline (14), a secondary branch pipeline (15) and a tertiary branch pipeline (16); one end of the primary water pipeline (10) extends from the bottom of the first-stage ozone reactor (6) to the top thereof; the other end of the primary water pipeline (10) is connected to the bottom of the second-stage ozone reactor (7) via a sewage pump; and the primary water pipeline (10) is connected to the drain waterway (5) via a primary branch pipeline (14); One end of the secondary water pipeline (11) extends from the bottom of the second-stage ozone reactor (7) to the top thereof, the other end of the secondary water pipeline (11) is connected to the bottom of the third-stage ozone reactor (8) via a sewage pump, and the secondary water pipeline (11) is connected to the drain channel (5) via a secondary branch pipeline (15); One end of the tertiary water delivery pipeline (12) extends from the bottom of the third-stage ozone reactor (8) to the top thereof, the other end of the tertiary water delivery pipeline (12) is connected to the bottom of the fourth-stage ozone reactor (9) via a sewage pump, and the tertiary water delivery pipeline (12) is connected to the drain channel (5) via a tertiary branch pipeline (16); One end of the fourth-stage water delivery pipeline (13) extends from the bottom of the fourth-stage ozone reactor (9) to the top thereof, and the other end of the fourth-stage water delivery pipeline (13) is arranged to penetrate the bottom of the fourth-stage ozone reactor (9).

5. The ozone disinfection device for epidemic prevention according to claim 4 is characterized in that: The gas pipeline comprises a primary gas pipeline (17), a secondary gas pipeline (18), and a tertiary gas pipeline (19); The air inlet end of the first-stage air pipeline (17) is arranged at the top of the first-stage ozone reactor (6), and the outlet end of the first-stage air pipeline (17) enters the second-stage ozone reactor (7) and extends toward the bottom; The air inlet end of the secondary air pipeline (18) is arranged at the top of the second-stage ozone reactor (7), and the outlet end of the secondary air pipeline (18) enters the third-stage ozone reactor (8) and extends toward the bottom; The air inlet end of the third-stage air pipeline (19) is arranged at the top of the third-stage ozone reactor (8), and the outlet end of the third-stage air pipeline (19) enters the fourth-stage ozone reactor (9) and extends toward the bottom.

6. The ozone disinfection device for epidemic prevention according to claim 5, characterized in that: It also includes a recovery pipeline, wherein the air inlet end of the recovery pipeline (20) is arranged at the top of the fourth-stage ozone reactor (9), and the outlet end of the recovery pipeline (20) is connected to the ozone generating unit.

7. The ozone disinfection device for epidemic prevention according to claim 5, characterized in that: The ozone generating unit further comprises an aeration head (21), and the outlet ends of the air inlet pipeline (2), the primary air delivery pipeline (17), the secondary air delivery pipeline (18), and the tertiary air delivery pipeline (19) are all connected to the aeration head (21).

8. The ozone disinfection device for epidemic prevention according to claim 1, characterized in that: The water inlet unit further comprises a water storage tank (22), and the water storage tank (22) is connected to the water inlet pipeline (3).

9. The ozone disinfection device for epidemic prevention according to claim 3, characterized in that: The pressure in the four groups of ozone reactors is 0-0.4 Mpa; the sewage treatment temperature is 15-45°C, and the treatment time is 9-60 hours.

10. The ozone disinfection device for epidemic prevention according to claim 3, characterized in that: The four groups of ozone reactors all adopt VTBR reactors, and the monomer diameter of the VTBR reactors is 1-3 meters.

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