Biological membrane car washing sewage circulating filter with external vibrator

Abstract

The invention discloses a biological membrane car washing sewage circulating filter with an external vibrator. The biological membrane car washing sewage circulating filter with the external vibrator comprises a pretreatment system, a biological membrane reactor, a vibrator device, a filtering system, a disinfection system and a water circulation system, the vibrator device is externally arranged, so that the occupied space in the bio-membrane reactor can be reduced, and the distribution of a flow field and a bio-membrane in the bio-membrane reactor cannot be directly influenced. The vibrator device is arranged outside, so that the vibrator device is more convenient to overhaul, maintain and replace, and the internal structure of the bio-membrane reactor does not need to be disassembled. Working parameters, such as vibration frequency, amplitude and the like, of the vibration sub-device can be flexibly adjusted according to actual requirements, so that the optimal decontamination effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of filtration, and in particular to a biofilm car wash sewage circulation filter with an external vibrator. Background Art

[0002] In the recycling process of car wash sewage, PVDF biofilm can filter out 0.023 micron sewage suspended particles, and the filtering effect is relatively good. However, the filtered suspended dust particles will gather around the biofilm, greatly reducing the filtering effect of the biofilm. Therefore, it is necessary to propose a biofilm car wash sewage recycling filter with an external vibrator to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to address the deficiencies of the prior art and provide a biofilm car wash sewage circulation filter with an external vibrator to solve the problem that the suspended dust particles filtered out by the PVDF biofilm will gather around the biofilm, reducing the filtering effect of the biofilm.

[0004] The present invention provides a biofilm car wash sewage circulation filter with an external vibrator, comprising: a pretreatment system, a biofilm reactor, a vibrator device, a filtration system, a disinfection system and a water circulation system; the pretreatment system is connected to the biofilm reactor, the biofilm reactor is connected to the filtration system, the filtration system is connected to the disinfection system, and the disinfection system is connected to the water circulation system; the vibrator device is arranged outside the biofilm reactor, the biofilm reactor has a PVDF biological filtration membrane, the vibrator device includes a plurality of micro DC vibration motors, and the plurality of micro DC vibration motors are buried in the PVDF biological filtration membrane.

[0005] Furthermore, the pretreatment system includes a grid and a sedimentation tank; the grid is located at the front end of the pretreatment system, and the sedimentation tank is located at the rear end of the pretreatment system.

[0006] Furthermore, the biofilm reactor is a moving bed biofilm reactor or a fixed bed biofilm reactor.

[0007] Furthermore, the filtration system adopts sand filter, ultrafiltration or microfiltration membrane filtration.

[0008] Furthermore, the disinfection system adopts ultraviolet disinfection or ozone disinfection.

[0009] The present invention has the following beneficial effects: the present invention provides a biofilm car wash sewage circulation filter with an external vibrator, including: a pretreatment system, a biofilm reactor, a vibrator device, a filtration system, a disinfection system and a water circulation system; the external vibrator device can reduce the space occupied inside the biofilm reactor, and will not directly affect the flow field and the distribution of the biofilm inside the biofilm reactor. Since the vibrator device is external, the inspection, maintenance and replacement of the vibrator device will be simpler, and there is no need to disassemble the internal structure of the biofilm reactor. The working parameters of the vibrator device, such as vibration frequency, amplitude, etc., can be flexibly adjusted according to actual needs to achieve the best decontamination effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a schematic diagram of the structure of the biofilm car wash sewage circulation filter with an external vibrator of the present invention;

[0012] Figure 2 This is a schematic diagram of a micro DC vibration motor embedded in a PVDF biofiltration membrane.

[0013] Illustration: 100 - pretreatment system; 200 - biofilm reactor; 300 - vibrator device; 400 - filtration system; 500 - disinfection system; 600 - water circulation system; 201 - PVDF biofiltration membrane; 301 - micro DC vibration motor. DETAILED DESCRIPTION

[0014] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those generally understood by those of ordinary skill in the art to which the present application belongs.

[0015] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0016] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in a variety of different forms and should not be interpreted as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for clarity, the thickness of the layers and regions is enlarged, and the same reference numerals are used to represent the same devices, so their description will be omitted.

[0017] See also Figure 1 to Figure 2 The embodiment of the present invention provides a biofilm car wash wastewater circulation filter with an external vibrator, including: a pretreatment system 100, a biofilm reactor 200, a vibrator device 300, a filtration system 400, a disinfection system 500 and a water circulation system 600.

[0018] The pretreatment system 100 is connected to the biofilm reactor 200, the biofilm reactor 200 is connected to the filtration system 400, the filtration system 400 is connected to the disinfection system 500, and the disinfection system 500 is connected to the water circulation system 600; the vibrator device 300 is arranged outside the biofilm reactor 200, the biofilm reactor 200 has a PVDF biological filtration membrane 201, and multiple micro DC vibration motors 301 of the vibrator device 300 are buried in the PVDF biological filtration membrane 201.

[0019] The pretreatment system 100 includes a grid and a sedimentation tank; the grid is located at the front end of the pretreatment system 100 and is used to intercept large floating objects and solid particles in the sewage. The sedimentation tank is located at the rear end of the pretreatment system 100 and is used to remove suspended matter, organic matter and other impurities in the sewage, so that the sewage can be further purified. The grid and the sedimentation tank are connected by pipes or ditches. The sewage is first intercepted by the grid, and after removing large floating objects and solid particles, it flows into the sedimentation tank for further treatment.

[0020] The biofilm reactor 200 uses biofilm technology, such as a moving bed biofilm reactor or a fixed bed biofilm reactor, to degrade organic pollutants. A vibrator device 300 is installed outside the biofilm reactor 200 to vibrate regularly to prevent biofilm clogging and improve treatment efficiency. The filtration system 400 uses sand filtration, ultrafiltration or microfiltration membrane filtration to further purify the water quality. The disinfection system 500 uses ultraviolet disinfection or ozone disinfection to ensure that the discharged water quality meets environmental protection standards. The water circulation system 600 stores the treated water and uses it for car washing to achieve the recycling of water resources.

[0021] In this embodiment, the micro DC vibration motor 301 can be a micro DC 1.5V vibration motor with a shell and a built-in copper head, with a size of 55mm×17mm, a power of 0.7W, a current of 0.35A, and a weight of 23 grams. When the micro DC vibration motor 301 is working, the sludge deposited on the surface of the PVDF biological filtration membrane 201 is made to fall down by vibration, so as to prevent the sludge from clogging the capillary pores of the PVDF biological filtration membrane 201 due to the sludge deposition. The deposited sludge can be backwashed through the sewage valve at regular intervals, so that the sludge deposited outside the PVDF biological filtration membrane 201 can be returned to the sedimentation tank.

[0022] When the biofilm car wash wastewater circulation filter with an external vibrator of the present invention is used, it is necessary to ensure the activity of microorganisms in the biofilm reactor and regularly monitor and adjust environmental conditions. The frequency and amplitude of the micro DC vibration motor 301 need to be adjusted according to the actual operating conditions to prevent the biofilm from falling off. Clean and replace the filter material regularly to maintain the filtration efficiency. Considering that the car wash wastewater may contain grease and chemicals, these substances need to be specially treated. Through such a design scheme, the effective treatment and recycling of car wash wastewater can be achieved while reducing the impact on the environment.

[0023] It can be seen from the above embodiments that the present invention provides a biofilm car wash sewage circulation filter with an external vibrator. The external vibrator device can reduce the space occupied inside the biofilm reactor and will not directly affect the flow field and biofilm distribution inside the biofilm reactor. Since the vibrator device is external, the inspection, maintenance and replacement of the vibrator device will be simpler and there is no need to disassemble the internal structure of the biofilm reactor. The working parameters of the vibrator device, such as vibration frequency, amplitude, etc., can be flexibly adjusted according to actual needs to achieve the best decontamination effect.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A biofilm car wash wastewater circulation filter with an external vibrator, characterized in that: include: A pretreatment system (100), a biofilm reactor (200), a vibrator device (300), a filtration system (400), a disinfection system (500), and a water circulation system (600); The pretreatment system (100) is connected to the biofilm reactor (200), the biofilm reactor (200) is connected to the filtration system (400), the filtration system (400) is connected to the disinfection system (500), and the disinfection system (500) is connected to the water circulation system (600); the vibrator device (300) is arranged outside the biofilm reactor (200), the biofilm reactor (200) has a PVDF biological filtration membrane (201), and the vibrator device (300) includes a plurality of micro DC vibration motors (301), and the plurality of micro DC vibration motors (301) are embedded in the PVDF biological filtration membrane (201).

2. A biofilm car wash wastewater circulation filter with an external vibrator as claimed in claim 1, characterized in that: The pretreatment system (100) comprises a grid and a sedimentation tank; the grid is located at the front end of the pretreatment system (100), and the sedimentation tank is located at the rear end of the pretreatment system (100).

3. The biofilm car wash wastewater circulation filter with an external vibrator as claimed in claim 1, characterized in that: The biofilm reactor (200) is a moving bed biofilm reactor or a fixed bed biofilm reactor.

4. The biofilm car wash wastewater circulation filter with an external vibrator as claimed in claim 1, characterized in that: The filtration system (400) uses sand filtration, ultrafiltration or microfiltration membrane filtration.

5. The biofilm car wash wastewater circulation filter with an external vibrator as claimed in claim 1, characterized in that: The disinfection system (500) adopts ultraviolet disinfection or ozone disinfection.

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