CN216427021U - Micro-nano ozone AOP processing system of industrial waste water - Google Patents
Micro-nano ozone AOP processing system of industrial waste water Download PDFInfo
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- CN216427021U CN216427021U CN202123066387.5U CN202123066387U CN216427021U CN 216427021 U CN216427021 U CN 216427021U CN 202123066387 U CN202123066387 U CN 202123066387U CN 216427021 U CN216427021 U CN 216427021U
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Abstract
The utility model discloses a micro-nano ozone AOP processing system of industrial waste water, including former water pitcher, ozone generator, gas-liquid mixture pump, pressure boost oxidation tank, BAF retort and BAC retort. Raw water in the raw water tank and ozonized gas generated by the ozone generator are communicated at the inlet of the gas-liquid mixing pump, and the gas-liquid is mixed by the gas-liquid mixing pump, and the gas-liquid mixing pump, the pressure boost oxidation tank, the BAF reaction tank and the BAC reaction tank are sequentially connected. The utility model discloses a make the micro-nano bubble of two-stage ozone, improve the solubility of ozone, improve the reaction rate and the utilization efficiency of ozone. Meanwhile, the gas-water ratio of the whole system and the absolute number of ozone micro-nano bubbles are improved through effluent backflow, so that organic matters difficult to degrade in inlet water are subjected to 'AOP modification + biochemical degradation' treatment repeatedly, and the ozone consumption is reduced.
Description
Technical Field
The utility model belongs to the technical field of industrial waste water treatment technique and specifically relates to a micro-nano ozone AOP processing system of industrial waste water is related to.
Background
Because the industrial wastewater relates to wide industries and various production processes, raw materials and products, the components in the wastewater are obviously different, the water quality difference is obvious, and meanwhile, most of organic matters in the industrial wastewater have complex structures, so that the B/C in the wastewater is lower, the wastewater is not easily biodegraded, and part of the organic matters have strong biotoxicity. At present, industrial wastewater is mainly treated by adopting a process of pretreatment, biochemical treatment and advanced treatment, a traditional biological method is difficult to directly treat high-concentration organic wastewater, pretreatment is needed before biochemical treatment, part of organic matters which are difficult to degrade are oxidized and decomposed in advance, the biodegradability of the wastewater is improved, and the subsequent treatment pressure is reduced; on the other hand, the effluent of the biochemical unit often hardly reaches the discharge standard, and the refractory substances remained in the wastewater must be decomposed and mineralized for further advanced treatment.
In order to further improve the treatment effect of industrial wastewater and simplify the wastewater treatment process, the advanced oxidation technology has been widely applied to various pretreatment and advanced treatment links of refractory wastewater due to the advantages of strong oxidation capability, rapid reaction, wide application range, no secondary pollution, small selectivity, capability of effectively improving the biodegradability of wastewater, reduction of biotoxicity and the like. In various advanced oxidation technologies, the use amount of the oxidizing agent such as fenton reagent, O3 and H2O2 is too high compared with the theoretical addition amount, and the ozone oxidation method becomes a better choice due to the conditions of a large amount of solid wastes generated in the treatment process of other advanced oxidation methods such as the fenton oxidation method, high investment cost of the electron beam method and the like, so that how to improve the ozone oxidation efficiency becomes a key point.
Disclosure of Invention
An object of the utility model is to overcome prior art's defect, provide a micro-nano ozone AOP processing system of industrial waste water, promote ozone oxidation's reaction efficiency and reaction rate, improve industrial waste water treatment effect.
The utility model relates to an industrial wastewater micro-nano ozone AOP treatment system, which comprises a raw water tank, an ozone generator, a gas-liquid mixing pump, a pressure boost oxidation tank, a BAF reaction tank and a BAC reaction tank; the raw water tank is connected with the inlet end of the gas-liquid mixing pump through a water outlet pipe, the ozone generator is connected with the inlet end of the gas-liquid mixing pump through an ozone inlet pipe, the gas-liquid mixing pump is used for generating primary micro-nano bubble water, and the gas-water ratio reaches 15% -20%; the gas-liquid mixing pump, the pressure boost oxidation tank, the BAF reaction tank and the BAC reaction tank are connected in sequence.
Further, the outlet end of the gas-liquid mixing pump is connected with a pressurization oxidation tank through a pipeline, the top of the tank body of the pressurization oxidation tank is provided with an exhaust pipeline, and the exhaust pipeline is provided with a pressure regulating valve for controlling the pressure of the tank body.
Furthermore, an exhaust pipeline of the pressurization oxidation tank is connected with an ozone inlet pipe, and micro-nano bubbles are generated repeatedly in a circulating mode.
Furthermore, a central cylinder is arranged in a tank body of the pressurization oxidation tank, the central cylinder is positioned on a central axis of the tank body, the upper end of the central cylinder is opened, and micro-nano bubble water generated by the gas-liquid mixing pump enters from the bottom of the central cylinder and overflows into the pressurization oxidation tank body.
Further, the utility model discloses a micro-nano ozone AOP processing system of industrial waste water still includes and dissolves gas releaser, and the pressure boost oxidation jar is connected with the BAF retort after dissolving gas releaser, dissolves gas releaser setting in the bottom of BAF retort.
Furthermore, the BAF reaction tank is filled with light filler or ozone catalyst for biological oxidation or further improving ozone oxidation efficiency.
Further, the BAC reactor was filled with crushed carbon.
Further, the utility model discloses a micro-nano ozone AOP processing system of industrial waste water still includes a water pitcher and back flow, and a water pitcher is gone into to partly product water up to standard emission of BAC retort, and another part is produced water and is flowed back to the gas-liquid mixture pump entry through the back flow. The return pipe is provided with a pipeline mixer for adding hydrogen peroxide.
Has the advantages that: the utility model discloses a make the micro-nano bubble of two-stage ozone, improve the solubility of ozone, improve the reaction rate and the utilization efficiency of ozone. Meanwhile, the gas-water ratio of the whole system and the absolute number of ozone micro-nano bubbles are improved through effluent backflow, so that organic matters difficult to degrade in inlet water are subjected to 'AOP modification + biochemical degradation' treatment repeatedly, and the ozone consumption is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
1. An ozone generator; 2. a raw water tank; 3. a gas-liquid mixing pump; 4. a pressure boost oxidation tank; 41. a central cylinder; 42. an exhaust line; 43. a pressure regulating valve; 6, a BAF reaction tank; 7. a dissolved air releaser; a BAC reaction tank; 9. discharging the water tank; 5. a return pipe.
Detailed Description
The technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.
The utility model discloses a micro-nano ozone AOP processing system of industrial waste water, including former water pitcher 2, ozone generator 1, gas-liquid mixture pump 3, pressure boost oxidation tank 4, BAF retort 6, dissolved gas releaser 7 and BAC retort 8.
The water outlet pipe of the raw water tank 2 is uniformly connected with the inlet end of the gas-liquid mixing pump 3 through the ozone inlet pipe of the ozone generator 1, the raw water of the raw water tank 2 and ozonized gas generated by the ozone generator 1 are subjected to pressurization gas-liquid mixing in the gas-liquid mixing pump 3 to generate primary micro-nano bubble water, the gas-liquid ratio reaches 15% -20%, the outlet end of the gas-liquid mixing pump 3 is connected with the pressurization oxidation tank 4, a central cylinder 41 is arranged in the tank body of the pressurization oxidation tank 4, the central cylinder 41 is positioned on the central axis of the tank body, the upper end of the central cylinder is opened, the micro-nano bubble water generated by the gas-liquid mixing pump 3 enters from the bottom of the central cylinder 41 and overflows into the tank body of the pressurization oxidation tank 4, the reaction time of ozone under the pressure condition can be prolonged in the tank body of the pressurization oxidation tank 4, the ozonized gas is completely dissolved, and the reaction efficiency is improved.
An exhaust pipeline 42 is arranged at the top of the tank body of the pressurization oxidation tank 4, the exhaust pipeline 42 is connected with an ozone inlet pipe, a pressure regulating valve 43 is arranged on the exhaust pipeline 42 and used for controlling the pressure of the tank body, ozone reacts with raw water in the tank body of the pressurization oxidation tank 4 to generate oxygen, oxygen which is not dissolved in the tank body of the pressurization oxidation tank 4 returns to the front end of the gas-liquid mixing pump 3 by regulating the pressure regulating valve 43, and micro-nano bubbles are generated repeatedly by mixing and circulating with the ozone and inlet water of the gas-liquid mixing pump 3.
The pressurizing oxidation tank 4 is connected with the BAF reaction tank 6 after passing through the dissolved gas releaser 7, the dissolved gas releaser 7 is arranged at the bottom of the BAF reaction tank 6, the water discharged from the pressurizing oxidation tank 4 containing the residual dissolved oxygen passes through the dissolved gas releaser 7 to generate secondary micro-nano bubbles, and then enters the BAF reaction tank 6 from the bottom of the BAF reaction tank 6, and the biochemical effect is enhanced by improving the content of the dissolved oxygen and the utilization rate of the oxygen in the BAF reaction tank 6; the BAF reaction tank 6 is filled with a light filler or an ozone catalyst.
The BAF reaction tank 6 is connected with a BAC reaction tank 8, the effluent of the BAF reaction tank 6 overflows into the BAC reaction tank 8, broken carbon is filled in the BAC reaction tank 8, and pollutants are further removed in the BAC reaction tank 8 under the action of activated carbon;
one part of produced water of the BAC reaction tank 8 is discharged into the water outlet tank 9 after reaching the standard, the other part of produced water flows back to the inlet of the gas-liquid mixing pump 3 through the return pipe, the gas-water ratio of the whole system and the absolute quantity of micro-nano bubbles are improved, the 'AOP modification and biochemical degradation' process of difficultly degraded organic matters in the inlet water can be repeated for multiple times, the biochemical degradation effect is fully exerted, the ozone consumption is reduced, and the treatment efficiency is improved. The return pipe 10 is also provided with a pipeline mixer for adding hydrogen peroxide.
Claims (9)
1. The micro-nano ozone AOP treatment system for industrial wastewater is characterized by comprising a raw water tank (2), an ozone generator (1), a gas-liquid mixing pump (3), a pressurization oxidation tank (4), a BAF reaction tank (6) and a BAC reaction tank (8);
the raw water tank (2) is connected with the inlet end of the gas-liquid mixing pump (3) through a water outlet pipe, the ozone generator (1) is connected with the inlet end of the gas-liquid mixing pump (3) through an ozone inlet pipe, and the gas-liquid mixing pump (3) is used for generating primary micro-nano bubble water; a gas-liquid mixing pump (3), a pressure-increasing oxidation tank (4), a BAF reaction tank (6) and a BAC reaction tank (8) are connected in sequence.
2. The micro-nano ozone AOP treatment system for industrial wastewater according to claim 1, wherein the outlet end of the gas-liquid mixing pump (3) is connected with the pressure boost oxidation tank (4) through a pipeline, the top of the pressure boost oxidation tank (4) is provided with an exhaust pipeline (42), and the exhaust pipeline (42) is provided with a pressure regulating valve (43) for controlling the pressure of the tank.
3. The micro-nano ozone AOP treatment system for industrial wastewater according to claim 2, wherein an exhaust pipeline (42) of the pressurization oxidation tank (4) is connected with an ozone inlet pipe.
4. The industrial wastewater micro-nano ozone AOP treatment system according to claim 1, wherein a central cylinder (41) is arranged in a tank body of the pressurized oxidation tank (4), the upper end of the central cylinder is open, and micro-nano bubble water generated by the gas-liquid mixing pump (3) enters from the bottom of the central cylinder (41) and overflows into the tank body of the pressurized oxidation tank (4).
5. The micro-nano ozone AOP treatment system for industrial wastewater according to claim 1, further comprising a dissolved air releaser (7), wherein the pressurized oxidation tank (4) is connected with the BAF reaction tank (6) after passing through the dissolved air releaser (7), and the dissolved air releaser (7) is arranged at the bottom of the BAF reaction tank (6).
6. The industrial wastewater micro-nano ozone AOP treatment system according to claim 1, wherein a BAF reaction tank (6) is filled with a light filler or an ozone catalyst.
7. The micro-nano ozone AOP treatment system for industrial wastewater according to claim 1, wherein broken carbon is filled in the BAC reaction tank (8).
8. The industrial wastewater micro-nano ozone AOP treatment system according to claim 1, further comprising a water outlet tank (9) and a return pipe (5), wherein one part of produced water of the BAC reaction tank (8) is discharged into the water outlet tank (9) after reaching the standard, and the other part of produced water is returned to the inlet of the gas-liquid mixing pump (3) through the return pipe (5).
9. The micro-nano ozone AOP treatment system for industrial wastewater according to claim 1, wherein a pipeline mixer is arranged on the return pipe (5) and is used for adding hydrogen peroxide.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123066387.5U CN216427021U (en) | 2021-12-08 | 2021-12-08 | Micro-nano ozone AOP processing system of industrial waste water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123066387.5U CN216427021U (en) | 2021-12-08 | 2021-12-08 | Micro-nano ozone AOP processing system of industrial waste water |
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| CN216427021U true CN216427021U (en) | 2022-05-03 |
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| CN202123066387.5U Active CN216427021U (en) | 2021-12-08 | 2021-12-08 | Micro-nano ozone AOP processing system of industrial waste water |
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