Wastewater recycling device

Abstract

The utility model relates to the technical field of self-service car washing, specifically a wastewater recycling device, comprising a wastewater collection tank, a sedimentation tank, a bag filter, a quartz sand filter, a microbial filter tank and a clean water tank connected in sequence; the wastewater collection tank is arranged below the car washing area, and is used to collect wastewater after car washing; the clean water tank is used to collect clean water filtered and treated by the sedimentation tank, the bag filter, the quartz sand filter, and the microbial filter tank, and use it as car washing water. Car washing wastewater is collected by the wastewater collection tank, and is continuously treated by the sedimentation tank, the bag filter, the quartz sand filter and the microbial filter tank, and finally the wastewater is converted into reusable clean water, which is stored in the clean water tank as car washing water. This recycling method effectively saves water resources and reduces water consumption during car washing.

Description

Technical Field

[0001] The utility model relates to the technical field of self-service car washing, in particular to a waste water recycling device. Background Art

[0002] With the improvement of environmental awareness and the increasing shortage of resources, the recycling and reuse of wastewater has become an indispensable part of modern industry and urban management. Especially in the car washing industry, since a large amount of wastewater containing detergents and other impurities is generated during the car washing process, direct discharge not only wastes water resources, but also may pollute the environment. Therefore, it is particularly important to develop a device that can efficiently recycle and reuse car washing wastewater.

[0003] Most of them have deficiencies in wastewater treatment effect and operational convenience. Especially in car wash wastewater treatment, since the wastewater contains a lot of detergent residues and solid impurities, it is difficult for general recycling devices to completely remove these pollutants, resulting in the recycled water quality failing to meet the standards for reuse. Utility Model Content

[0004] The utility model aims at the technical problems existing in the prior art and provides a wastewater recycling device to solve the problem that the residual wastewater after washing a car is difficult to be reused.

[0005] The utility model solves the above technical problems with the following technical solutions: a wastewater recycling device, comprising a wastewater collection tank, a sedimentation tank, a bag filter, a quartz sand filter, a microbial filtration tank and a clean water tank connected in sequence;

[0006] The wastewater collection tank is arranged below the car wash area and is used to collect wastewater after car wash;

[0007] The clean water tank is used to collect clean water filtered and treated by the sedimentation tank, bag filter, quartz sand filter, and microbial filtration tank and used as water for washing cars.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, a load-bearing grid for carrying vehicles is set above the wastewater collection tank.

[0010] Furthermore, a primary filter screen located below the load-bearing grid is laid at the notch of the wastewater collection tank.

[0011] Furthermore, the wastewater collection trough includes a plurality of groups of branch troughs arranged at equal intervals, and connecting troughs are reserved between adjacent straight troughs.

[0012] Furthermore, the sedimentation tank includes a primary sedimentation tank and a secondary sedimentation tank.

[0013] Furthermore, the quartz sand filter includes a quartz sand filter 1 and a quartz sand filter 2 which are connected in sequence.

[0014] Furthermore, a drain pipe is reserved at the bottom of the clean water tank, and a water supply pipe is connected to the top of the clean water tank.

[0015] Furthermore, the mesh size of the primary filter is between 4 mm and 6 mm.

[0016] Moreover, the wastewater recycling device provided by the utility model has at least the following beneficial effects compared with the prior art:

[0017] The car wash wastewater is collected in the wastewater collection tank and continuously treated in the sedimentation tank, bag filter, quartz sand filter and microbial filtration tank, and finally converted into reusable clean water, which is stored in the clean water tank for car washing. This recycling method effectively saves water resources and reduces water consumption in the car washing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the principle of the utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of the wastewater collection tank of the utility model;

[0020] Figure 3 It is a partial top view of the wastewater collection tank of the utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Wastewater collection tank; 1.1. Branch tank; 1.2. Connecting tank; 2. Sedimentation tank; 3. Bag filter; 4. Quartz sand filter; 5. Microbial filtration tank; 6. Clean water tank; 6.1. Drain pipe; 6.2. Water supply pipe; 7. Load-bearing grid; 8. Primary filter. DETAILED DESCRIPTION

[0023] 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.

[0024] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For ordinary technicians in this field, the specific meanings of such terms in this patent can be understood according to specific circumstances.

[0025] like Figure 1 and Figure 2As shown, the wastewater recycling and reuse device of the present utility model comprises a wastewater collection tank 1, a sedimentation tank 2, a bag filter 3, a quartz sand filter 4, a microbial filtration tank 5 and a clean water tank 6 which are connected in sequence.

[0026] The wastewater collecting tank 1 is arranged below the car washing area and is used to collect wastewater after car washing; wastewater enters the wastewater collecting tank 1 by natural flow.

[0027] The clean water tank 6 is used to collect clean water filtered and treated by the sedimentation tank 2, the bag filter 3, the quartz sand filter 4, and the microbial filtration tank 5 and used as water for washing the car.

[0028] In sedimentation tank 2, large suspended solids and solid impurities in the wastewater naturally settle to the bottom of the tank by gravity, achieving preliminary solid-liquid separation.

[0029] The precipitated wastewater enters the bag filter 3, and the bag filter 3 utilizes the pore structure of the filter bag to further remove small particle impurities and suspended matter in the wastewater.

[0030] The filtered wastewater then enters the quartz sand filter 4, which removes tiny particles and dissolved organic matter in the wastewater through the adsorption and filtering effects of quartz sand.

[0031] The wastewater treated by the quartz sand filter 4 flows into the microbial filtration pool 5, in which the organic matter in the wastewater is converted into inorganic matter through the degradation action of microorganisms, and nutrients such as nitrogen and phosphorus in the water are removed at the same time.

[0032] The clean water in the clean water tank 6 can be reused as water for washing the car. Through recycling, the device realizes the recycling and reuse of waste water, effectively saving water resources.

[0033] In addition, according to the needs of the device and the characteristics of the wastewater, the sedimentation tank can adopt different types such as horizontal flow sedimentation tank, vertical flow sedimentation tank, radial flow sedimentation tank, etc.

[0034] Bag filters can be selected according to different needs, such as single bag, multi-bag, side-in and side-out, top-in and bottom-out.

[0035] Quartz sand filters generally use quartz sand as the filter medium and can be divided into two types: conventional quartz sand filters and continuous sand filters and quicksand filters.

[0036] Microbial filtration tanks usually refer to anaerobic biofilters, which can be divided into upflow anaerobic filters and downflow anaerobic filters.

[0037] Anaerobic biofilter: The interior is filled with solid fillers, such as slag, porcelain rings, plastics, etc. Anaerobic microorganisms partially attach and grow on the fillers to form anaerobic biofilms to remove organic matter in the wastewater.

[0038] As an implementation mode, a load-bearing grid frame 7 for supporting vehicles is erected above the wastewater collection tank 1. The grid frame is designed to have sufficient strength and stability to bear the weight of the vehicle, ensuring that the vehicle is stably parked on the grid frame during the car washing process. The mesh design of the load-bearing grid frame 7 allows the car wash wastewater to pass smoothly and flow into the wastewater collection tank 1 below.

[0039] The size of the mesh is determined according to the size of the solid debris in the wastewater and the required filtering accuracy, ensuring that most of the wastewater can enter the collection tank while preventing large pieces of solid debris from entering.

[0040] Specifically, a primary filter screen 8 located below the load-bearing grid 7 is laid at the notch of the wastewater collection tank 1. The mesh size of the primary filter screen 8 is 4mm-6mm. This range can ensure that most of the solid debris in the car wash wastewater is effectively intercepted without excessively restricting the flow of the wastewater.

[0041] As an implementation method, Figure 3 As shown, the wastewater collecting tank 1 includes a plurality of groups of branch tanks 1.1 arranged at equal intervals, and connecting tanks 1.2 are reserved between adjacent straight tanks 1.1. The branch tanks 1.1 are the main components of the wastewater collecting tank 1. They are arranged at equal intervals so as to better disperse and collect the water flow from the car washing area. The wastewater can be evenly distributed in the entire wastewater collecting tank 1, avoiding overflow problems caused by excessive concentration of water flow, and at the same time ensuring sufficient bearing strength for the load-bearing grid 7.

[0042] The wastewater in the straight tank 1.1 can flow by gravity or be transported to the sedimentation tank 2 by a water pump for sedimentation.

[0043] As an implementation mode, the sedimentation tank 2 includes a primary sedimentation tank and a secondary sedimentation tank;

[0044] Wastewater flows from the wastewater collection tank 1 into the primary sedimentation tank. In the primary sedimentation tank, large suspended solids and solid impurities in the wastewater naturally settle to the bottom of the tank under the action of gravity. Through appropriate residence time and flow rate control, the primary sedimentation tank can remove most of the suspended solids in the wastewater and effectively reduce the solid concentration in the wastewater.

[0045] The quartz sand filter 4 includes a quartz sand filter 1 and a quartz sand filter 2 which are connected in sequence.

[0046] In the quartz sand filter, wastewater passes through a quartz sand layer of a certain thickness.

[0047] As a filter medium, quartz sand can intercept impurities such as suspended matter, organic matter, colloidal particles, and microorganisms in wastewater. Through the adsorption and filtration of quartz sand, impurities in wastewater are effectively removed and the water quality is initially purified.

[0048] The quartz sand layer in the quartz sand filter 2 is usually finer or thicker than that in the quartz sand filter 1 to further improve the filtering effect. In the quartz sand filter 2, the wastewater is filtered and adsorbed by the quartz sand layer again to remove the remaining tiny particles and dissolved substances.

[0049] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0050] Although the preferred embodiments of the utility model have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the utility model.

[0051] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A wastewater recycling device, characterized in that: It comprises a wastewater collection tank (1), a sedimentation tank (2), a bag filter (3), a quartz sand filter (4), a microbial filtration tank (5) and a clean water tank (6) which are connected in sequence; The wastewater collection tank (1) is arranged below the car washing area and is used to collect wastewater after car washing; The clean water tank (6) is used to collect clean water filtered and treated by the sedimentation tank (2), the bag filter (3), the quartz sand filter (4), and the microbial filtration tank (5) and used as water for washing the car.

2. The wastewater recycling device according to claim 1, characterized in that: A load-bearing grid frame (7) for supporting vehicles is arranged above the wastewater collection tank (1).

3. The wastewater recycling device according to claim 2, characterized in that: A primary filter screen (8) located below the load-bearing grid frame (7) is also laid at the notch of the wastewater collection tank (1).

4. The wastewater recycling device according to claim 2, characterized in that: The wastewater collection tank (1) comprises a plurality of groups of branch tanks (1.1) arranged at equal intervals, and connecting tanks (1.2) are reserved between adjacent branch tanks (1.1).

5. The wastewater recycling device according to claim 1, characterized in that: The sedimentation tank (2) comprises a primary sedimentation tank and a secondary sedimentation tank.

6. The wastewater recycling device according to claim 1, characterized in that: The quartz sand filter (4) comprises a quartz sand filter 1 and a quartz sand filter 2 which are connected in sequence.

7. The wastewater recycling device according to claim 1, characterized in that: The bottom of the clean water tank (6) is provided with a drain pipe (6.1) and the top is also connected with a water supply pipe (6.2).

8. The wastewater recycling device according to claim 3, characterized in that: The mesh size of the primary filter (8) is between 4 mm and 6 mm.

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