Biological membrane car washing sewage circulating filter with external vibrator

Abstract

The utility model 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.

Description

Technical Field

[0001] This utility model relates to the field of filtration technology, specifically to a biofilm car wash wastewater circulation filter with an external vibrator. Background Technology

[0002] In the recycling process of car wash wastewater, PVDF biofilms can filter out suspended particles as small as 0.023 microns, showing good filtration efficiency. However, the filtered suspended particles tend to accumulate around the biofilm, significantly reducing its filtration effectiveness. Therefore, it is necessary to propose a biofilm car wash wastewater recycling filter with an external vibrator to address the aforementioned issues. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a biofilm car wash wastewater circulation filter with an external vibrator, in order to solve the problem that suspended microparticles filtered by PVDF biofilms tend to accumulate around the biofilm, reducing the filtration efficiency of the biofilm.

[0004] This utility model provides a biofilm car wash wastewater 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 disposed outside the biofilm reactor, the biofilm reactor has a PVDF biofiltration membrane, and the vibrator device includes multiple micro DC vibration motors embedded in the PVDF biofiltration membrane.

[0005] Furthermore, the pretreatment system includes a bar screen and a sedimentation tank; the bar screen 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 employs sand filters, ultrafiltration, or microfiltration membrane filtration.

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

[0009] This invention offers the following advantages: The biofilm wastewater circulation filter for car washes provided by this invention includes: a pretreatment system, a biofilm reactor, a vibrator device, a filtration system, a disinfection system, and a water circulation system. The external placement of the vibrator device reduces the space occupied inside the biofilm reactor and does not directly affect the flow field and biofilm distribution within the reactor. Because the vibrator device is external, its inspection, maintenance, and replacement are much simpler, as it eliminates the need to disassemble the internal structure of the biofilm reactor. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of the biofilm car wash wastewater circulation filter with external vibrator of this utility model;

[0012] Figure 2 This is a schematic diagram of a miniature 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-Miniature DC vibration motor. Detailed Implementation

[0014] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be pointed out that the following detailed description is illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

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

[0016] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions has been enlarged, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0017] Please see Figures 1 to 2 This utility model 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 300 is located outside the biofilm reactor 200, which has a PVDF biofiltration membrane 201. Multiple micro DC vibration motors 301 of the vibrator 300 are embedded in the PVDF biofiltration membrane 201.

[0019] The pretreatment system 100 includes a bar screen and a sedimentation tank. The bar screen, located at the front end of the pretreatment system 100, intercepts large floating objects and solid particles in the wastewater. The sedimentation tank, located at the rear end of the pretreatment system 100, removes suspended solids, organic matter, and other impurities from the wastewater, further purifying it. The bar screen and sedimentation tank are connected by pipes or ditches. Wastewater first passes through the bar screen to remove large floating objects and solid particles before flowing into the sedimentation tank for further treatment.

[0020] The biofilm reactor 200 employs biofilm technology, such as a moving bed biofilm reactor or a fixed bed biofilm reactor, to degrade organic pollutants. A vibrating device 300 is installed externally to the biofilm reactor 200 to periodically vibrate and prevent biofilm clogging, thereby improving treatment efficiency. The filtration system 400 uses sand filters, ultrafiltration, or microfiltration membranes to further purify the water. The disinfection system 500 uses ultraviolet disinfection or ozone disinfection to ensure that the discharged water meets environmental standards. The water recycling system 600 stores the treated water and uses it for car washing, achieving water resource recycling.

[0021] In this embodiment, the miniature DC vibration motor 301 can be a miniature DC 1.5V vibration motor with a built-in copper head, measuring 55mm × 17mm, power 0.7W, current 0.35A, and weight 23 grams. When the miniature DC vibration motor 301 operates, it vibrates to dislodge the sludge deposited on the surface of the PVDF biofilter membrane 201, preventing sludge buildup from clogging the capillaries of the PVDF biofilter membrane 201. The deposited sludge can be backwashed periodically through a drain valve, allowing the sludge deposited outside the PVDF biofilter membrane 201 to flow back into the sedimentation tank.

[0022] As can be seen from the above embodiments, the biofilm car wash wastewater circulation filter with an external vibrator provided by this utility model reduces the space occupied inside the biofilm reactor by placing the vibrator externally, and does not directly affect the flow field and biofilm distribution inside the biofilm reactor. Because the vibrator is external, inspection, maintenance, and replacement of the vibrator are much simpler, without requiring disassembly of the internal structure of the biofilm reactor. The operating parameters of the vibrator, such as vibration frequency and amplitude, can be flexibly adjusted according to actual needs to achieve the best decontamination effect.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in sequences other than those illustrated or described herein.

[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A biofilm car wash wastewater circulation filter with an external vibrator, characterized in that, include: The system includes 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 vibrating sub-device (300) is disposed outside the biofilm reactor (200), the biofilm reactor (200) has a PVDF biofiltration membrane (201), and the vibrating sub-device (300) includes a plurality of micro DC vibration motors (301), which are embedded in the PVDF biofiltration membrane (201).

2. The biofilm car wash wastewater circulation filter with an external vibrator as described in claim 1, characterized in that, The pretreatment system (100) includes a bar screen and a sedimentation tank; the bar screen 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. A biofilm car wash wastewater circulation filter with an external vibrator as described in claim 1, characterized in that, The biofilm reactor (200) is a moving bed biofilm reactor or a fixed bed biofilm reactor.

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

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

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