Sewage ozone pretreatment gas dissolving pump and releaser combined process device
By combining a dissolved air pump with a release device, the problem of aeration disc blockage was solved, the utilization rate and treatment efficiency of ozone were improved, the operating cost was reduced, and the effective treatment of oily wastewater was achieved.
Patent Information
- Application Number
- CN202423320929.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In existing technologies, aeration discs are prone to clogging, resulting in low ozone transfer efficiency, abnormally high system pressure, and increased energy consumption. Furthermore, rubber aeration discs have insufficient corrosion resistance, and titanium alloy aeration discs are difficult to clean, leading to high operating costs.
The process device employs a combination of dissolved air pump and release device, including first and second ozone pre-oxidation tanks connected to a dissolved air pump and a release pipe. It uses stainless steel corrugated pipes and control valves to achieve microbubble aeration, improve ozone utilization, and simplify cleaning operations.
It improves ozone utilization, reduces the risk of clogging, lowers operating costs, and achieves effective treatment of oily wastewater.
Smart Images
Figure CN223766184U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of sewage treatment, in particular to a sewage ozone pretreatment dissolved gas pump and release device combined process device. BACKGROUND
[0002] In the field of ship oily wastewater treatment, ozone oxidation pretreatment unit plays a crucial role. It removes organic matter, color and part of refractory substances in wastewater through efficient oxidation, laying a solid foundation for subsequent advanced treatment. However, the widely used aeration disc aeration method in this key process link faces a significant and thorny problem - aeration disc clogging, which directly affects the treatment efficiency and operation stability of the whole system.
[0003] As the key component of ozone transfer to water body, the original intention of aeration disc is to promote the full mixing of ozone and sewage and accelerate the oxidation reaction process. However, in actual application, especially when dealing with ship sewage with complex composition and high oil content, aeration disc is prone to clogging due to the accumulation of oil, suspended solids and biofilm. This not only reduces the transfer efficiency of ozone, but also may cause abnormal increase of system pressure and increase of energy consumption, and even force the whole treatment process to be interrupted in severe cases.
[0004] In recent years, a new type of air aeration disc has appeared in the market, which is characterized by using a rubber aeration head. This design cleverly uses the self-shrinkage property of rubber. When aeration is stopped, the aeration holes can be automatically closed under the action of rubber elasticity, thereby preventing sewage backflow and the entry of solid particles to some extent and delaying the occurrence of clogging. However, this solution is not perfect. First of all, the durability and anti-aging performance of rubber material are tested when it is immersed in sewage containing corrosive chemicals for a long time. Secondly, even if the rubber can temporarily close the aeration holes, in deep water (such as 5-6 meters), the continuous water pressure may still cause a small amount of sewage to penetrate, which will form scale over time and affect the aeration effect. In addition, rubber aeration disc is not suitable for all situations, especially for ozone oxidation process, rubber material may not be able to withstand high concentration of ozone corrosion, limiting its application in certain scenarios.
[0005] In view of the limitations of rubber aeration disc, more titanium alloy aeration discs are used in the market. Titanium alloy has excellent corrosion resistance, high strength and good biocompatibility, and has become the first choice material in many industrial fields. However, although titanium alloy aeration disc is hard, its extremely fine airway structure is almost impossible to clean effectively once it is severely scaled, and often can only be replaced, which undoubtedly increases the operation cost and maintenance difficulty.
[0006] The ship oil sewage is particularly prone to scaling due to its unique composition. Taking the backwater pump filter of the air flotation tank as an example, the filter configured at the factory often needs to be cleaned every 2-3 days when facing such sewage, otherwise the treatment flow will be seriously affected due to blockage, highlighting the shortcomings of the existing pretreatment technology in dealing with high-oil-content sewage. Practical new type content
[0007] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a sewage ozone pretreatment dissolved gas pump plus releaser combined process device for effectively treating oil sewage.
[0008] The sewage ozone pretreatment dissolved gas pump plus releaser combined process device provided by the embodiments of the present application comprises: a first ozone pre-oxidation tank and a second ozone pre-oxidation tank; wherein: the first ozone pre-oxidation tank and the second ozone pre-oxidation tank are connected with at least a first dissolved gas pump and a second dissolved gas pump; the first dissolved gas pump is connected with an external water inlet pipeline through a first water inlet pipeline; the second dissolved gas pump is connected in communication with the first water inlet pipeline of the first dissolved gas pump through a second water inlet pipeline; the first water inlet pipeline of the first dissolved gas pump is also connected in communication with the first ozone pre-oxidation tank and the second ozone pre-oxidation tank respectively; the first dissolved gas pump and the second dissolved gas pump are connected with a first dissolved gas liquid release pipe between the first dissolved gas pump and the first ozone pre-oxidation tank; a first release head is arranged at the connection between the first dissolved gas liquid release pipe and the first ozone pre-oxidation tank; the first dissolved gas pump and the second dissolved gas pump are connected with a second dissolved gas liquid release pipe between the first dissolved gas pump and the second ozone pre-oxidation tank, and a second release head is arranged at the connection between the second dissolved gas liquid release pipe and the second ozone pre-oxidation tank.
[0009] In a possible implementation, the first water inlet pipeline is connected with the first dissolved gas pump through a first articulated stainless steel bellows; the second water inlet pipeline is connected with the second dissolved gas pump through a second articulated stainless steel bellows; at least one first filter, a first inlet negative pressure gauge, a first control valve for controlling communication with the first ozone pre-oxidation tank, a second control valve for controlling communication with the second ozone pre-oxidation tank, and an electric regulating valve for automatically controlling water inlet are arranged on the first water inlet pipeline.
[0010] In a possible implementation, a bypass valve connected at both ends of the electric regulating valve is further arranged on the first water inlet pipeline.
[0011] In a possible implementation, the first control valve and the second control valve are connected through a third articulated stainless steel bellows.
[0012] In a possible implementation, the first ozone pre-oxidation tank and the second ozone pre-oxidation tank are further connected with a third dissolved air pump; the third dissolved air pump is connected with the first water inlet pipeline and the second water inlet pipeline through a third water inlet pipeline.
[0013] In a possible implementation, the third water inlet pipeline is connected with the third dissolved air pump through a fourth articulated stainless steel bellows; at least one second filter and a second inlet negative pressure gauge are arranged on the third water inlet pipeline; the third water inlet pipeline is further connected with the first control valve.
[0014] In a possible implementation, the first dissolved air liquid release pipeline comprises a first dissolved air liquid release main pipeline and a first dissolved air liquid release auxiliary pipeline connected with the first dissolved air liquid release main pipeline; the first release head comprises a first main pipeline release head arranged on the first dissolved air liquid release main pipeline and a first auxiliary pipeline release head arranged on the first dissolved air liquid release auxiliary pipeline; a first outlet positive pressure gauge is arranged on the first dissolved air liquid release pipeline.
[0015] In a possible implementation, the second dissolved air liquid release pipeline comprises a second dissolved air liquid release main pipeline and a second dissolved air liquid release auxiliary pipeline connected with the second dissolved air liquid release main pipeline; the second release head comprises a second main pipeline release head arranged on the second dissolved air liquid release main pipeline and a second auxiliary pipeline release head arranged on the second dissolved air liquid release auxiliary pipeline; a second outlet positive pressure gauge is arranged on the second dissolved air liquid release pipeline.
[0016] In a possible implementation, the first ozone pre-oxidation tank and the second ozone pre-oxidation tank are further connected with a third dissolved air pump; the third dissolved air pump is connected with the first water inlet pipeline and the second water inlet pipeline through a third water inlet pipeline.
[0017] In a possible implementation, the first ozone pre-oxidation tank and the second ozone pre-oxidation tank are further connected with a third dissolved air pump; the third dissolved air pump is connected with the first water inlet pipeline and the second water inlet pipeline through a third water inlet pipeline.
[0018] As described above, the odor mixing process of the dissolved air pump plus releaser adopted in the present application controls and processes the sewage in the ozone pre-oxidation tank; the micro-bubbles of the dissolved air pump plus releaser can reach 20-30 μm, which can improve the utilization rate of ozone, and at the same time, plays the same role as the air flotation tank, and can also remove part of the scum, so as to realize the effective treatment of the oily sewage. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those of ordinary skill in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0020] Figure 1 A top view of a simplified schematic diagram of a sewage ozone pretreatment dissolved air pump plus releaser combined process device according to an embodiment of the present application is shown.
[0021] Figure 2 A bottom view of a simplified schematic diagram of a sewage ozone pretreatment dissolved air pump plus releaser combined process device according to an embodiment of the present application is shown.
[0022] Element number explanation
[0023] 11 first ozone pre-oxidation tank
[0024] 101 first liquid outlet
[0025] 12 second ozone pre-oxidation tank
[0026] 102 second liquid outlet
[0027] 13 first dissolved air pump
[0028] 14 second dissolved air pump
[0029] 15 third dissolved air pump
[0030] 16 first water inlet pipeline
[0031] 161 first articulated stainless steel corrugated pipe
[0032] 162 third control valve
[0033] 163 first filter
[0034] 164 first inlet negative pressure gauge
[0035] 165 electric regulating valve
[0036] 166 bypass valve
[0037] 17 second water inlet pipeline
[0038] 171 second articulated stainless steel corrugated pipe
[0039] 181 first control valve
[0040] 182 second control valve
[0041] 183 third flexible stainless steel bellows
[0042] 19 third water inlet pipe
[0043] 191 fourth flexible stainless steel bellows
[0044] 192 fourth control valve
[0045] 193 second filter
[0046] 194 second inlet negative pressure gauge
[0047] 111 first dissolved air liquid releasing main pipe
[0048] 112 first main pipe releasing head
[0049] 113 first dissolved air liquid releasing auxiliary pipe
[0050] 114 first auxiliary pipe releasing head
[0051] 115 second dissolved air liquid releasing main pipe
[0052] 116 second main pipe releasing head
[0053] 117 second dissolved air liquid releasing auxiliary pipe
[0054] 118 second auxiliary pipe releasing head
[0055] 119 first outlet positive pressure gauge
[0056] 1110 second outlet positive pressure gauge
[0057] 20 external water inlet pipe
[0058] 21 external water inlet device DETAILED DESCRIPTION
[0059] The advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure of the present application. The present application can also be implemented or applied in different specific embodiments or modules, and the details in the present application can be modified or changed according to different viewpoints and application modules without departing from the spirit of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.
[0060] The embodiments of the present application will be described in detail below with reference to the specific examples, and those skilled in the art can easily understand the advantages and effects of the present application from the disclosure of the present application. The present application can be embodied in various different forms, and is not limited to the embodiments described herein. Figure 1 and Figure 2 The embodiments of the present application will be described in detail below with reference to the specific examples, and those skilled in the art can easily understand the advantages and effects of the present application from the disclosure of the present application. The present application can be embodied in various different forms, and is not limited to the embodiments described herein.
[0061] In the present description, the expressions "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that the particular feature, structure, material, or characteristic following the phrase is included in at least one embodiment or example of the present application. Also, the phrase, in an appropriate context, means that the particular feature, structure, material, or characteristic can be included in any one or more embodiments or examples of the present application. Moreover, the phrase "at least one", when employed as a prefix to a feature, structure, material, or characteristic in the present description means that at least one of the feature, structure, material, or characteristic is present in, or is employed in, the relevant embodiment or example, whether important or not. Also, the phrase "at least one" when employed as a prefix to a group of features, structures, materials, or characteristics means that at least one of the group is present in, or is employed in, the relevant embodiment or example, whether important or not. The phrase "one or more" when employed as a prefix to a group of features, structures, materials, or characteristics means that one, two, three, or an arbitrary number (including zero) of the group is present in, or is employed in, the relevant embodiment or example, whether important or not.
[0062] In addition, the terms "first", "second", etc. are used herein only to describe various features, and do not imply a relative importance or a specific order of the features. Thus, features defined with "first", "second", etc. can include at least one of the features. In the present description, the term "a group" means two or more, unless specifically stated otherwise.
[0063] Although the terms first, second, etc. can be used herein to describe various features, these features should not be limited by these terms. These terms are used only to distinguish one feature from another. Also, as used in the present description, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and / or "including" means that the described features, structures, materials, etc. are included, but not excluding the presence or addition of one or more other features, structures, materials, etc. The term "or" and "and / or" as used herein is to be interpreted as inclusive, i.e., as meaning one or any combination of any one of the listed features. Thus, "A, B or C" or "A, B and / or C" means any of the following: A; B; C; A and B; A and C; B and C; A, B and C. An exception to this definition will occur only when a combination of features is not possible under any circumstances.
[0064] In order to clearly illustrate the present application, structures irrelevant to the description are omitted, and the same reference numerals are assigned to the same or similar constituent structures throughout the description.
[0065] In the description of the specific embodiments, when it is said that a certain structure is "connected" to another structure, this includes not only the case of "direct connection" but also the case of "indirect connection" in which other structural elements are interposed therebetween. In addition, when it is said that a certain structure "includes" a certain constituent element, this does not exclude other constituent elements unless specifically stated otherwise, but means that other constituent elements can also be included.
[0066] The technical terms used herein are for reference only to specific embodiments and are not intended to limit the scope of this application. The singular form used herein also includes the plural form unless the statement explicitly indicates otherwise. The word "comprising" as used in the specification means to specify a particular characteristic or structural element, and does not exclude the existence or addition of other characteristics or structural elements.
[0067] Although not explicitly defined, all terms, including technical and scientific terms used herein, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Terms defined in commonly used dictionaries shall be further interpreted as having a meaning consistent with the relevant technical literature and the message of the present invention, and shall not be over-interpreted as having an ideal or overly formulaic meaning unless otherwise defined.
[0068] This embodiment provides a combined process device for wastewater ozone pretreatment with dissolved air pump and release device, which realizes the single output of the card through vibrator, and is used to effectively treat oily wastewater.
[0069] The following will combine Figure 1 and Figure 2 This embodiment details the principle and implementation of a combined process device for wastewater ozone pretreatment with dissolved air pump and release device, enabling those skilled in the art to understand this embodiment without creative effort.
[0070] like Figure 1 As shown in the figure, this application provides a combined process device for wastewater ozone pretreatment with dissolved air pump and release device. The combined process device includes: a first ozone pre-oxidation tank 11 and a second ozone pre-oxidation tank 12; wherein: the first ozone pre-oxidation tank 11 and the second ozone pre-oxidation tank 12 are at least connected to a first dissolved air pump 13 and a second dissolved air pump 14; a first dissolved air release pipe is connected between the first dissolved air pump 13 and the second dissolved air pump 14 and the first ozone pre-oxidation tank 11; a first release head is installed at the connection between the first dissolved air release pipe and the first ozone pre-oxidation tank 11; a second dissolved air release pipe is connected between the first dissolved air pump 13 and the second dissolved air pump 14 and the second ozone pre-oxidation tank 12, and a second release head is installed at the connection between the second dissolved air release pipe and the second ozone pre-oxidation tank 12.
[0071] This embodiment uses a dissolved air pump and release device (release head) odor mixing process to control the treatment of wastewater in the ozone pre-oxidation tank. The dissolved air pump and release device can produce microbubbles of 20-30μm, which can improve the utilization rate of ozone and play the same role as the flotation tank, which can also remove some scum and achieve effective treatment of oily wastewater.
[0072] The first dissolved air pump 13 and the second dissolved air pump 14 are standby for each other, and the scale cleaning can be realized without stopping production.
[0073] Specifically, in the embodiment, the first dissolved air pump 13 is connected with an external water inlet pipeline 20 through a first water inlet pipeline 16, the external water inlet pipeline 20 is connected with an external water inlet device 21, the second dissolved air pump 14 is connected with the first water inlet pipeline 16 of the first dissolved air pump 13 through a second water inlet pipeline 17, and the first water inlet pipeline 16 of the first dissolved air pump 13 is also connected with the first ozone pre-oxidation tank 11 and the second ozone pre-oxidation tank 12 respectively.
[0074] The first dissolved air pump 13 and the second dissolved air pump 14 are supplied with water through the external water inlet pipeline 20, and the water flows into the first dissolved air pump 13 and the second dissolved air pump 14 through the first water inlet pipeline 16 of the first dissolved air pump 13 and the second water inlet pipeline 17 of the second dissolved air pump 14 respectively.
[0075] Since the dissolved air pump has a water requirement, for example, the dissolved air pump is 10 square, when the daily water inflow cannot be reached, the first dissolved air pump 13 and the second dissolved air pump 14 are supplemented with water through the first ozone pre-oxidation tank 11 and the second ozone pre-oxidation tank 12, so as to ensure that the water inflow of the first dissolved air pump 13 and the second dissolved air pump 14 is 10 square.
[0076] In a possible embodiment, the first water inlet pipeline 16 is connected with the first dissolved air pump 13 through a first articulated stainless steel bellows 161, the second water inlet pipeline 17 is connected with the second dissolved air pump 14 through a second articulated stainless steel bellows 171, at least one first filter 163 (stainless steel Y-shaped filter), a first inlet negative pressure gauge 164, a first control valve 181 for controlling communication with the first ozone pre-oxidation tank 11, a second control valve 182 for controlling communication with the second ozone pre-oxidation tank 12, and an electric regulating valve 165 for automatically controlling water inflow are arranged on the first water inlet pipeline 16.
[0077] In the embodiment, in addition to the articulated bellows at the inlet of the water inlet pipeline (DN50, L=300mm), the inlet pipeline of the dissolved air pump is preferably all DN65 pipes. The inlet of the water inlet pipeline is provided with an inlet negative pressure gauge, and the pressure gauge has a range of 1.0Mpa. The first control valve 181 and the second control valve 182 are three-way ball valves, preferably L-shaped.
[0078] In a specific embodiment of the embodiment, the first control valve 181 and the second control valve 182 are connected through a third articulated stainless steel bellows 183.
[0079] In the embodiment, a third control valve 162 is arranged between the first water inlet pipeline 16 and the second water inlet pipeline 17, and the third control valve 162 is preferably a T-shaped ball valve.
[0080] In the embodiment, the first control valve 181 and the second control valve 182 are used to control the communication between the first ozone pre-oxidation tank 11 and the second ozone pre-oxidation tank 12 and the first gas dissolving pump 13 and the second gas dissolving pump 14, and the electric regulating valve 165 is used to control the automatic water supply to the first gas dissolving pump 13 and the second gas dissolving pump 14.
[0081] In one specific embodiment of the embodiment, a bypass valve 166 is arranged on the first water inlet pipeline 16 and connected to both ends of the electric regulating valve 165. The bypass valve 166 has a valve, and when the electric regulating valve 165 fails, the valve is opened to supply water through the bypass valve 166.
[0082] In one specific embodiment of the embodiment, the first ozone pre-oxidation tank 11 and the second ozone pre-oxidation tank 12 are further connected with a third gas dissolving pump 15, and the third gas dissolving pump 15 is connected with the first water inlet pipeline 16 and the second water inlet pipeline 17 through a third water inlet pipeline 19. The third gas dissolving pump 15 can be used as a standby gas dissolving pump.
[0083] In one specific embodiment of the embodiment, the third water inlet pipeline 19 is connected with the third gas dissolving pump 15 through a fourth articulated stainless steel bellows 191, and at least one second filter 193 (a stainless steel Y-shaped filter) and a second inlet negative pressure gauge 194 are arranged on the third water inlet pipeline 19. The third water inlet pipeline 19 is further connected with the first control valve 181.
[0084] In the embodiment, a fourth control valve 192 is arranged between the third water inlet pipeline 19 and the second water inlet pipeline 17, and the fourth control valve 192 is preferably a T-shaped ball valve.
[0085] In one specific embodiment of the embodiment, the first gas dissolving liquid release preferably uses a Φ48 stainless steel pipe with a wall thickness of 4 mm. Figure 2 As shown in the figure, the first gas dissolving liquid release pipe includes a first gas dissolving liquid release main pipe 111 and a first gas dissolving liquid release auxiliary pipe 113 connected with the first gas dissolving liquid release main pipe 111. The first release head includes a first main pipe release head 112 arranged on the first gas dissolving liquid release main pipe 111 and a first auxiliary pipe release head 114 arranged on the first gas dissolving liquid release auxiliary pipe 113. The first gas dissolving liquid release pipe is provided with a first outlet positive pressure gauge 119.
[0086] In one specific embodiment of this invention, the second dissolved gas release preferably uses a Φ48 stainless steel pipe with a wall thickness of 4mm; such as Figure 2 As shown, the second dissolved gas liquid release pipe includes a second dissolved gas liquid release main pipe 115 and a second dissolved gas liquid release auxiliary pipe 117 connected to the second dissolved gas liquid release main pipe 115; the second release head includes a second main pipe release head 116 disposed on the second dissolved gas liquid release main pipe 115 and a second auxiliary pipe release head 118 disposed on the second dissolved gas liquid release auxiliary pipe 117; a second outlet positive pressure gauge 1110 is installed on the second dissolved gas liquid release pipe.
[0087] In one specific embodiment of this example, the height of the position in the first ozone pre-oxidation tank 11 and the second ozone pre-oxidation tank 12 connected to the first water inlet pipe 16 from the ground is 400±10mm.
[0088] In one specific embodiment of this example, the height of the position where the first ozone pre-oxidation tank 11 is connected to the first dissolved gas release pipe from the ground is 250±10mm; the height of the position where the second ozone pre-oxidation tank 12 is connected to the second dissolved gas release pipe from the ground is 250±10mm.
[0089] Furthermore, in this embodiment, the first dissolved gas pump 13, the second dissolved gas pump 14, and the third dissolved gas pump 15 are supported and fixed by a bracket, wherein the bracket is provided with a pipe fixing clamp. The bottom of the first ozone pre-oxidation tank 11 and the second ozone pre-oxidation tank 12 are respectively provided with a first liquid outlet 101 and a second liquid outlet 102.
[0090] In this embodiment, the wastewater ozone pretreatment dissolved air pump and release device combination process adopts a combination of dissolved air pump and release device, which simplifies the operation procedure. When the flow rate of the dissolved air pump is matched with the release volume of the release device, there is no need to adjust the outlet valve of the dissolved air pump. Starting the dissolved air pump immediately puts it into normal operation. The bubble diameter generated by the aeration head is 80-100μm, and the microbubbles generated by the dissolved air pump and release device can reach 20-30μm. Therefore, the wastewater ozone pretreatment dissolved air pump and release device combination process in this embodiment can improve the utilization rate of ozone and play the same role as the flotation tank, which can also remove some of the scum. In this embodiment, the wastewater ozone pretreatment dissolved air pump and release device combination process can ensure uniform mixing of gas and liquid. At the same time, the dissolved air pump and release device are located outside the tank, which greatly facilitates the scale removal operation. Moreover, the two dissolved air pumps can be used as backups for each other, so scale removal can be carried out without interrupting production.
[0091] In summary, the odor mixing process of the dissolved air pump plus the releaser adopted by the application controls and processes the sewage in the ozone pre-oxidation tank. The micro-bubbles of the dissolved air pump plus the releaser can reach 20-30 μm, which can improve the utilization rate of ozone, and at the same time, plays the same role as the air flotation tank, and can also remove part of the scum, so as to realize the effective treatment of the oily sewage.
[0092] The above embodiments only exemplarily illustrate the principles and effects of the application, and are not used to limit the application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the application should be covered by the claims of the application.
Claims
1. A sewage ozone pretreatment dissolved air pump and eductor combined process apparatus characterized by, The utility model relates to a kind of ozone pre-oxidation tank and ozone pre-oxidation tank for water treatment, including: First ozone pre-oxidation tank and second ozone pre-oxidation tank;Wherein: The first ozone pre-oxidation tank and the second ozone pre-oxidation tank are connected with at least first dissolved gas pump and second dissolved gas pump; The first dissolved gas pump is connected with external water inlet pipeline by first water inlet pipeline, and the second dissolved gas pump is communicated with the first water inlet pipeline of the first dissolved gas pump by second water inlet pipeline;The first water inlet pipeline of the first dissolved gas pump is also communicated with the first ozone pre-oxidation tank and the second ozone pre-oxidation tank respectively; The first dissolved gas pump and the second dissolved gas pump are connected with the first ozone pre-oxidation tank by first dissolved gas liquid release pipe;First release head is equipped at the connection of the first dissolved gas liquid release pipe and the first ozone pre-oxidation tank;The second dissolved gas liquid release pipe is connected between the second dissolved gas pump and the second ozone pre-oxidation tank, and second release head is equipped at the connection of the second dissolved gas liquid release pipe and the second ozone pre-oxidation tank.
2. The wastewater ozone pretreatment dissolved gas pump and eductor combination process apparatus of claim 1, wherein: The first water inlet pipeline is connected with the first dissolved gas pump by first articulated stainless steel bellows;The second water inlet pipeline is connected with the second dissolved gas pump by second articulated stainless steel bellows;At least one first filter, first inlet negative pressure gauge, first control valve for controlling communication with the first ozone pre-oxidation tank, second control valve for controlling communication with the second ozone pre-oxidation tank and electric regulating valve for automatically controlling water inlet are provided on the first water inlet pipeline.
3. The wastewater ozone pretreatment dissolved gas pump and eductor combination process apparatus of claim 2, wherein: The first water inlet pipeline is also provided with bypass valve connected to both ends of the electric regulating valve.
4. The wastewater ozone pretreatment dissolved gas pump and eductor combination process apparatus of claim 2, wherein: The first control valve and the second control valve are connected by third articulated stainless steel bellows.
5. The wastewater ozone pretreatment dissolved gas pump and eductor combination process apparatus of claim 2 wherein: The first ozone pre-oxidation tank and the second ozone pre-oxidation tank are also connected with third dissolved gas pump;The third dissolved gas pump is communicated with the first water inlet pipeline and the second water inlet pipeline by third water inlet pipeline.
6. The wastewater ozone pretreatment dissolved gas pump and eductor combination process apparatus of claim 5 wherein: The third water inlet pipeline is connected with the third dissolved gas pump by fourth articulated stainless steel bellows;At least one second filter, second inlet negative pressure gauge are provided on the third water inlet pipeline;The third water inlet pipeline is also connected with the first control valve.
7. The wastewater ozone pretreatment dissolved gas pump and eductor combination process apparatus of claim 1 wherein: The first dissolved gas liquid release pipe includes first dissolved gas liquid release main pipe and first dissolved gas liquid release auxiliary pipe communicated with the first dissolved gas liquid release main pipe;The first release head includes first main pipe release head provided on the first dissolved gas liquid release main pipe and first auxiliary pipe release head provided on the first dissolved gas liquid release auxiliary pipe;First outlet positive pressure gauge is equipped on the first dissolved gas liquid release pipe.
8. The wastewater ozone pretreatment dissolved air pump and eductor combined process apparatus of claim 1 or 7, wherein: The second dissolved gas liquid release pipe includes second dissolved gas liquid release main pipe and second dissolved gas liquid release auxiliary pipe communicated with the second dissolved gas liquid release main pipe;The second release head includes second main pipe release head provided on the second dissolved gas liquid release main pipe and second auxiliary pipe release head provided on the second dissolved gas liquid release auxiliary pipe;Second outlet positive pressure gauge is equipped on the second dissolved gas liquid release pipe.
9. The wastewater ozone pretreatment dissolved gas pump and eductor combination process apparatus of claim 1 wherein: The height of the position communicated with the first water inlet pipeline in the first ozone pre-oxidation tank and the second ozone pre-oxidation tank from the ground is 400 ± 10 mm.
10. The wastewater ozone pretreatment dissolved air pump and eductor combined process apparatus of claim 1 or 9, wherein: The first ozone pre-oxidation tank is communicated with the first dissolved gas liquid release pipe at a position with a height of 250±10 mm from the ground; and the second ozone pre-oxidation tank is communicated with the second dissolved gas liquid release pipe at a position with a height of 250±10 mm from the ground.