Continuous flow ozone oxidation method water treatment test device

Abstract

The utility model relates to a water treatment test device adopting a continuous flow ozone oxidation method. The water treatment test device comprises an ozone generation module, an ozone monitoring module, a water sample pH monitoring and adjusting module, a water inlet module, a gas-water mixed contact reaction module and a tail gas treatment module, the ozone generation module comprises a gas source gas storage bottle and an ozone generator, the ozone monitoring module comprises an ozone concentration meter and a flow meter, the water sample pH monitoring and adjusting module comprises an acid-base storage tank, an electromagnetic valve, a pH meter and a sewage tank, and the water inlet module comprises a peristaltic pump; and the gas-water mixing contact reaction module comprises a contact reaction column. The device can meet the requirements of ozone oxidation tests under different conditions; the contact reaction column is formed by splicing a plurality of sections of short columns and is convenient to disassemble, transport, fill and clean an ozone oxidation reaction catalyst and the like; sewage and ozone are mixed through the titanium alloy aeration head and enter the contact reaction column, the gas-water mixing condition is good, and titanium alloy can resist ozone corrosion; the water sample pH monitoring and adjusting module can facilitate the automation of pH adjustment and improve the efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment test devices, in particular to a continuous flow ozone oxidation method water treatment test device. Background Art

[0002] Advanced oxidation technology for water treatment is an advanced sewage treatment technology, and its application status is constantly expanding. This technology uses strong oxidants (such as ozone, hydrogen peroxide, etc.) to produce hydroxyl radicals (·OH) with strong oxidizing ability, thereby quickly and efficiently decomposing organic and inorganic substances. This technology has a wide range of applications and is suitable for various types of sewage treatment, including industrial wastewater, domestic sewage, medical wastewater, etc. At the same time, advanced oxidation technology has the advantages of fast reaction speed, high treatment efficiency, and no secondary pollution, so it has been widely used in the field of modern water treatment.

[0003] Industrial wastewater has the characteristics of a wide variety, complex composition, and large differences in pollutant content. Therefore, different treatment technologies are needed for different types of industrial wastewater. As an advanced oxidation technology, ozone oxidation technology has the advantages of high efficiency and low secondary pollution in the treatment of industrial wastewater. However, ozone oxidation technology also has some limitations: high energy consumption, the production of ozone requires high voltage electricity, so the treatment cost is high, and it is not suitable for low-concentration, high-flow industrial wastewater treatment; large equipment investment; ozone oxidation equipment is relatively complex and requires a high equipment investment; the treatment effect is limited, and ozone oxidation technology usually cannot completely oxidize organic pollutants in wastewater, and the removal rate is limited.

[0004] In order to overcome the limitations of ozone oxidation technology and improve treatment efficiency, relevant experimental research is needed. Through experiments, we can explore the laws of ozone oxidation reactions under different conditions, optimize reaction conditions, and improve treatment efficiency; at the same time, we can research and develop new ozone oxidation catalysts to reduce treatment costs; we can also study suitable treatment processes and technologies for specific types of industrial wastewater to improve wastewater treatment effects. At present, ozone oxidation tests are often carried out using sequencing batch devices, whose hydraulic conditions are different from those of actual projects and have little guiding significance for actual projects. Therefore, designing a continuous flow ozone oxidation water treatment test device similar to actual projects is of great significance to promoting the development and application of ozone oxidation technology. Utility Model Content

[0005] The utility model aims at the technical problems existing in the prior art and provides a continuous flow ozone oxidation method water treatment test device.

[0006] The utility model solves the above technical problems with the following technical solutions: A continuous flow ozone oxidation water treatment test device, comprising an ozone generation module, an ozone monitoring module, a water sample pH monitoring and adjustment module, a water inlet module, a gas-water mixed contact reaction module, and an exhaust gas treatment module;

[0007] The ozone generating module comprises a gas source gas storage cylinder and an ozone generator, and the gas source gas storage cylinder is connected to the ozone generator;

[0008] The ozone monitoring module includes an ozone concentration meter and a flow meter. The exhaust port of the ozone generator is respectively connected to a first branch pipe and a second branch pipe. The first branch pipe is connected in series with the ozone concentration meter and the flow meter, and the second branch pipe is connected with the flow meter.

[0009] The water sample pH monitoring and adjustment module includes an acid-base storage tank, a solenoid valve, a pH meter, and a sewage tank. The water sample pH monitoring and adjustment module is used to adjust the pH value of the sewage in the sewage tank so that the pH value is maintained between 6 and 8;

[0010] The water inlet module includes a peristaltic pump;

[0011] The gas-water mixed contact reaction module includes a contact reaction column. Both ends of the peristaltic pump are connected to delivery pipes, through which the sewage in the sewage tank is delivered to the inlet end of the contact reaction column. The end of the second branch pipe is connected to the inlet end of the contact reaction column.

[0012] Preferably, in the above-mentioned continuous flow ozone oxidation water treatment test device, the acid and alkali storage tanks include an acid storage tank and an alkali storage tank isolated from each other, the bottoms of the acid storage tank and the alkali storage tank are connected to an electromagnetic valve, the output end of the electromagnetic valve is connected to a sewage tank, and a pH meter is connected between the sewage tank and the electromagnetic valve; when the pH value of the sewage in the sewage tank is higher than 8, the electromagnetic valve on the lower side of the acid storage tank is controlled to open, and an acid solution is added to the sewage tank; when the pH value of the sewage in the sewage tank is lower than 6, the electromagnetic valve on the lower side of the alkali storage tank is controlled to open, and an alkali solution is added to the sewage tank.

[0013] Preferably, in the above-mentioned continuous flow ozone oxidation water treatment test device, the tail gas treatment module includes an ozone tail gas converter, and the ozone tail gas converter is respectively connected to the outlet end of the contact reaction column and the end of the first branch pipe.

[0014] Preferably, in the above-mentioned continuous flow ozone oxidation water treatment test device, the contact reaction column is formed by splicing multiple short column monomers, each of the short column monomers is fixedly connected with flanges at both ends, and two adjacent flanges are fixedly connected by bolts.

[0015] Preferably, in the above-mentioned continuous flow ozone oxidation water treatment test device, a sealing ring is provided between two adjacent flanges.

[0016] Preferably, in the above-mentioned continuous flow ozone oxidation water treatment test device, a sampling port is provided on the side of each of the short column monomers, and a sealing plug is detachably installed at the sampling port.

[0017] Preferably, in the above-mentioned continuous flow ozone oxidation water treatment test device, the inlet end of the contact reaction column is arranged at the lower end, the outlet end of the contact reaction column is arranged at the upper end, and the inlet end of the contact reaction column is installed with a titanium alloy aeration head.

[0018] Preferably, in the above-mentioned continuous flow ozone oxidation water treatment test device, a drain valve is installed at the front end of the inlet end of the contact reaction column.

[0019] Preferably, in the above-mentioned continuous flow ozone oxidation water treatment test device, a base is installed at the bottom of the contact reaction column.

[0020] The beneficial effects of the utility model are:

[0021] 1. This device can meet the needs of ozone oxidation tests under different conditions such as batch type and continuous flow type;

[0022] 2. The contact reaction column is composed of multiple short columns, which is convenient for disassembly, transportation, filling and cleaning of ozone oxidation reaction catalyst;

[0023] 3. Sewage and ozone are mixed into the contact reaction column through the titanium alloy aeration head. The gas-water mixing conditions are good, the water inlet flow is stable, the titanium alloy can resist the corrosion of ozone, and the reaction device has a long service life;

[0024] 4. The water sample pH monitoring and adjustment module can easily realize the automation of pH adjustment and reduce time cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the principle structure of the utility model;

[0026] Figure 2 For this utility model Figure 1 A partial enlarged view of the middle A;

[0027] Figure 3 It is a schematic diagram of the short column monomer structure of the contact reaction column;

[0028] Figure 4 Schematic diagram of the short column monomer structure at the top of the contact reaction column.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1. Gas source storage cylinder, 2. Ozone generator, 3. Ozone concentration meter, 4. Flow meter, 5. Acid and alkali storage tank, 6. Solenoid valve, 7. pH meter, 8. Peristaltic pump, 9. Drain valve, 10. Titanium alloy aeration head, 11. Contact reaction column, 12. Ozone tail gas converter, 13. Sewage tank, 14. Base, 15. Sampling port, 16. Flange, 17. Triangle plate. DETAILED DESCRIPTION

[0031] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a continuous flow ozone oxidation water treatment test device includes an ozone generation module, an ozone monitoring module, a water sample pH monitoring and adjustment module, a water inlet module, a gas-water mixing contact reaction module, and an exhaust gas treatment module.

[0033] The ozone generating module comprises an air source gas cylinder 1 and an ozone generator 2, wherein the air source gas cylinder 1 is connected to the ozone generator 2. The air source of the ozone generating module is an air source or an oxygen source. If it is an air source, the air source gas cylinder 1 is an oxygen generator, and if it is an oxygen source, the air source gas cylinder 1 is an oxygen cylinder.

[0034] The ozone monitoring module comprises an ozone concentration meter 3 and a flow meter 4. The exhaust port of the ozone generator 2 is respectively connected to a first branch pipe and a second branch pipe. The ozone concentration meter 3 and the flow meter 4 are connected in series to the first branch pipe, and the flow meter 4 is connected to the second branch pipe.

[0035] The water sample pH monitoring and adjustment module includes an acid-base storage tank 5, a solenoid valve 6, a pH meter 7, and a sewage tank 13. The acid-base storage tank 5 includes an acid storage tank and an alkali storage tank that are isolated from each other. The acid storage tank can store sulfuric acid solution, and the alkali storage tank can store sodium hydroxide solution. The bottom of the acid storage tank and the alkali storage tank are both connected to a solenoid valve 6, and the output end of the solenoid valve 6 is connected to the sewage tank 13. A pH meter 7 is connected between the sewage tank 13 and the solenoid valve 6; when the pH value of the sewage in the sewage tank 13 is higher than 8, the solenoid valve 6 on the lower side of the acid storage tank is controlled to open, and an acid solution is added to the sewage tank 13; when the pH value of the sewage in the sewage tank 13 is lower than 6, the solenoid valve 6 on the lower side of the alkali storage tank is controlled to open, and an alkali solution is added to the sewage tank 13. The water sample pH monitoring and adjustment module is used to monitor and adjust the pH value of the sewage in the sewage tank 13, so that its pH value is maintained between 6 and 8.

[0036] The gas-water mixed contact reaction module includes a contact reaction column 11, which is formed by splicing multiple short column monomers. Except for the short column monomer at the top, each short column monomer is fixedly connected with a flange 16 at both ends, and the two adjacent flanges 16 are fixedly connected by bolts, which is convenient for disassembly, transportation, filling and cleaning of the ozone oxidation reaction catalyst. A silicone sealing ring is arranged between two adjacent flanges 16 to prevent leakage. A base 14 is installed at the bottom of the contact reaction column 11. A triangular plate 17 is fixedly connected between the flange 16 and the pipe column to enhance its structural strength. A sampling port 15 is arranged on the side of each short column monomer, and a sealing plug is detachably installed at the sampling port 15. When sampling is required, the sealing plug can be removed and sampling can be performed through the sampling port 15. The inlet end of the contact reaction column 11 is arranged at the lower end, and the outlet end of the contact reaction column 11 is arranged at the upper end. A titanium alloy aeration head 10 is installed at the inlet end of the contact reaction column 11. The titanium alloy can resist the corrosion of ozone and extend its service life. A drain valve 9 is installed at the front end of the inlet end of the contact reaction column 11 so as to discharge all water samples in the contact reaction column 11 .

[0037] The water inlet module includes a peristaltic pump 8, and both ends of the peristaltic pump 8 are connected to a delivery pipe, one end of the delivery pipe is connected to the sewage tank 13, and the other end is connected to the titanium alloy aeration head 10 at the inlet end of the contact reaction column 11. The sewage in the sewage tank 13 is transported to the inlet end of the contact reaction column 11 through the delivery pipe, and the end of the second branch pipe is connected to the titanium alloy aeration head 10 at the inlet end of the contact reaction column 11, so that the sewage and ozone are transported to the contact reaction column 11 for oxidation reaction. After the ozone carrier gas passes through the flow meter 4, the second branch pipe needs to go around to the titanium alloy aeration head 10 from a position higher than the contact reaction column 11 to avoid back suction after the gas source is turned off.

[0038] The tail gas treatment module includes an ozone tail gas converter 12, which is filled with tungsten oxide and can convert ozone into oxygen. The ozone tail gas converter 12 is connected to the outlet end of the contact reaction column 11 and the end of the first branch pipe respectively.

[0039] Working principle: Ozone is generated by the ozone generator 2, and then passes through the flowmeter 4 on the first branch pipe, the ozone concentration meter 3 and the flowmeter 4 on the second branch pipe respectively. The ozone enters the contact reaction column 11 through the second branch pipe from the titanium alloy aeration head 10 at the inlet end of the contact reaction column 11, and the peristaltic pump 8 transports the sewage in the sewage tank 13 to the contact reaction column 11, so that the sewage reacts with the ozone. The ozone after the reaction in the contact reaction column 11 is discharged from the outlet end at the top thereof into the ozone tail gas converter 12, and the ozone in the first branch pipe is also discharged into the ozone tail gas converter 12, and is converted into oxygen by the ozone tail gas converter 12.

[0040] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A continuous flow ozone oxidation water treatment test device, characterized by: It includes ozone generation module, ozone monitoring module, water sample pH monitoring and adjustment module, water inlet module, gas-water mixing contact reaction module, and tail gas treatment module; The ozone generating module comprises a gas source storage cylinder (1) and an ozone generator (2), wherein the gas source storage cylinder (1) is connected to the ozone generator (2); The ozone monitoring module comprises an ozone concentration meter (3) and a flow meter (4); the exhaust port of the ozone generator (2) is connected to a first branch pipe and a second branch pipe respectively; the ozone concentration meter (3) and the flow meter (4) are connected in series to the first branch pipe; and the flow meter (4) is connected to the second branch pipe; The water sample pH monitoring and adjustment module comprises an acid and alkali storage tank (5), a solenoid valve (6), a pH meter (7), and a sewage tank (13). The water sample pH monitoring and adjustment module is used to adjust the pH value of sewage in the sewage tank (13) so that the pH value is maintained between 6 and 8. The water inlet module includes a peristaltic pump (8); The gas-water mixed contact reaction module comprises a contact reaction column (11), both ends of the peristaltic pump (8) are connected to a delivery pipe, and the sewage in the sewage tank (13) is delivered to the inlet end of the contact reaction column (11) through the delivery pipe, and the end of the second branch pipe is connected to the inlet end of the contact reaction column (11).

2. The continuous flow ozone oxidation water treatment test device according to claim 1, characterized in that: The acid-base storage tank (5) comprises an acid storage tank and an alkali storage tank which are isolated from each other. The bottoms of the acid storage tank and the alkali storage tank are both connected to a solenoid valve (6). The output end of the solenoid valve (6) is connected to a sewage tank (13). A pH meter (7) is connected between the sewage tank (13) and the solenoid valve (6). When the pH value of the sewage in the sewage tank (13) is higher than 8, the solenoid valve (6) on the lower side of the acid storage tank is controlled to open, and an acid solution is added to the sewage tank (13). When the pH value of the sewage in the sewage tank (13) is lower than 6, the solenoid valve (6) on the lower side of the alkali storage tank is controlled to open, and an alkali solution is added to the sewage tank (13).

3. The continuous flow ozone oxidation water treatment test device according to claim 1, characterized in that: The tail gas treatment module comprises an ozone tail gas converter (12), and the ozone tail gas converter (12) is respectively connected to the outlet end of the contact reaction column (11) and the end of the first branch pipe.

4. The continuous flow ozone oxidation water treatment test device according to claim 1, characterized in that: The contact reaction column (11) is formed by splicing together multiple short column monomers. Both ends of each short column monomer are fixedly connected with flanges (16), and two adjacent flanges (16) are fixedly connected by bolts.

5. The continuous flow ozone oxidation water treatment test device according to claim 4, characterized in that: A sealing ring is provided between two adjacent flanges (16).

6. The continuous flow ozone oxidation water treatment test device according to claim 4, characterized in that: A sampling port (15) is provided on the side of each short column monomer, and a sealing plug is detachably installed at the sampling port (15).

7. The continuous flow ozone oxidation water treatment test device according to claim 3, characterized in that: The inlet end of the contact reaction column (11) is arranged at the lower end, the outlet end of the contact reaction column (11) is arranged at the upper end, and a titanium alloy aeration head (10) is installed at the inlet end of the contact reaction column (11).

8. The continuous flow ozone oxidation water treatment test device according to claim 7, characterized in that: A drain valve (9) is installed at the front end of the inlet end of the contact reaction column (11).

9. The continuous flow ozone oxidation water treatment test device according to claim 4, characterized in that: A base (14) is installed at the bottom of the contact reaction column (11).

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