Integrated car washing sewage treatment and recycling device

Abstract

According to the integrated car washing sewage treatment and recycling device, a water inlet pipe is sequentially connected with a flocculation tank, a steady flow tank and a photocatalysis treatment tank through a pump body, and the end, connected with the water inlet pipe, of the pump body is further connected with a flocculant filling pipe; a flocculate collecting device is arranged at the upper part of the flocculation basin and comprises a flared funnel, the bottom of the funnel is connected with a blow-off pipe through a valve, two water level sensors are arranged on the funnel, the sensing point of one water level sensor is not higher than the upper edge of the funnel, and the sensing point of the other water level sensor is 2-5cm higher than the funnel; the steady flow tank is connected with the photocatalytic treatment tank through an overflow weir, the overflow weir comprises an inclined plate, and a filter layer is arranged on the inclined plate. The integrated car washing sewage treatment and recycling device is efficient in sewage treatment, portable, compact in structure, reasonable in configuration, small in occupied area, low in cost, suitable for being configured in car washing shops of various scales and high in recycling efficiency.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, in particular to an integrated device and method for treating car wash sewage. Background Art

[0002] In the process of production and life, sewage is inevitably generated. If the sewage problem is not properly solved, it will be a major event that affects people's lives and health. Sewage discharge is the main source of environmental pollution. In urbanization construction, sewage discharge is also the focus of remediation. Sewage is treated centrally and harmlessly before being discharged. Whoever discharges it will manage it. Therefore, for sewage-discharging enterprises, pollution control is also a major operating cost. However, as far as the sewage from car washes is concerned, it is currently difficult to achieve centralized collection and treatment through pipelines. Car washes usually handle it by themselves, which requires the construction of sewage pools. Sewage treatment equipment includes sedimentation tanks, etc., which need to be stationary for a period of time after the action of flocculants. This device and treatment method not only takes up space, but also takes a long time to treat sewage, and is not efficient, which is not conducive to promotion and application. Utility Model Content

[0003] In order to overcome the above disadvantages, the utility model provides an integrated car wash wastewater treatment and reuse device which occupies less space, has fast treatment speed and high efficiency.

[0004] This integrated car wash wastewater treatment and reuse device includes a water inlet pipe connected in sequence to a flocculation tank, a flow stabilization tank, and a photocatalytic treatment tank through a pump body, wherein:

[0005] The pump body is connected to the water inlet pipe end and the flocculant filling pipe;

[0006] A flocculant collecting device is provided on the upper part of the flocculation tank. The flocculant collecting device includes a bell-shaped funnel. The bottom of the funnel is connected to the sewage pipe through a valve. Two water level sensors are provided on the funnel. The sensing point of one water level sensor is not higher than the upper edge of the funnel, and the sensing point of the other water level sensor is 2-5cm higher than the funnel.

[0007] The stabilizing pool is connected to the photocatalytic treatment pool through an overflow weir. The overflow weir comprises an inclined plate on which a filtering layer is arranged.

[0008] Preferably, the water inlet nozzle is aligned with the middle area of ​​the funnel.

[0009] Preferably, an air filling regulating device is provided on the flocculant filling pipe.

[0010] Preferably, it also includes a coagulant filling pipe, which is arranged at one end of the water inlet pipe close to the funnel.

[0011] Preferably, a flow regulating valve is provided on the water inlet pipe, and the flow regulating valve is arranged before the coagulant aid filling pipe.

[0012] Preferably, the flocculant is polyaluminium chloride and the coagulant aid is polyacrylamide.

[0013] More preferably, the treatment device is a cabinet, including two side-by-side L-shaped flocculation tanks and stabilization tanks, which are connected in the middle of the bottom, the height of the overflow weir of the stabilization tank is consistent with the height of the funnel, and the photocatalytic treatment tank is arranged in the notch of the L-shaped flocculation tank and the stabilization tank. The photocatalytic tank is divided into several chambers connected at the bottom or top, and each chamber is provided with an ultraviolet light tube and a nano-photocatalyst mesh carrier.

[0014] The above-mentioned integrated car wash wastewater treatment and reuse device has efficient and portable wastewater treatment, compact structure, reasonable configuration, small footprint, low cost, and is suitable for car wash shops of various sizes with high recycling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the sewage treatment device of Example 1.

[0016] Figure 2 It is a schematic diagram of the integrated car wash wastewater treatment and reuse device of Example 2.

[0017] Figure 3 It is an exploded view of the integrated car wash wastewater treatment and reuse device of Example 2.

[0018] Figure 4 It is a side view of the integrated car wash wastewater treatment and reuse device of Example 2.

[0019] Figure 5 It is a schematic diagram of the integrated car wash wastewater treatment and reuse device of Example 2. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings using embodiments. Example 1

[0021] like Figure 1As shown, the sewage treatment device includes a water inlet pipe 10 connected to a flocculation tank 30, a flow stabilization tank 40, and a photocatalytic treatment tank 50 in sequence through a pump body 20, and the pump body 20 is connected to the water inlet pipe end and also connected to a flocculant filling pipe 11; a flocculant collecting device is provided on the upper part of the flocculation tank 30, and the flocculant collecting device includes a funnel 60 with a bell mouth, and the bottom of the funnel 60 is discharged through a valve 61 through a sewage outlet 62, and two water level sensors 70 are provided on the funnel 60, wherein the sensing point of one water level sensor is not higher than the upper edge of the funnel 60, and the sensing point of the other water level sensor is 2-5 cm higher than the funnel; the flow stabilization tank 40 is connected to the photocatalytic treatment tank 50 through an overflow weir 41, and the overflow weir 41 includes an inclined plate 42, and a filter layer 43 is provided on the inclined plate 42. Furthermore, the water inlet pipe port is aligned with the middle area of ​​the funnel 60. In order to achieve a better flocculation effect, an air filling adjustment device is provided on the flocculant filling pipe 11. At the same time, it also includes a coagulant filling pipe 13. The coagulant filling pipe 13 is arranged at one end of the water inlet pipe 10 close to the funnel 60. At the same time, a flow regulating valve 14 is provided on the water inlet pipe 10. The flow regulating valve 14 is arranged before the coagulant filling pipe 13. In this embodiment, the flocculant is polyaluminum chloride and the coagulant is polyacrylamide. When treating sewage, the pump body 20 is turned on to pump the sewage into the funnel 60 of the flocculation tank. At this time, the flocculant mixed with air at the water pump end is injected into the sewage. The sewage is fully stirred and mixed by the pump impeller and then sent to the funnel 60 of the flocculation tank. The flow regulating valve 14 is adjusted so that the coagulant is injected when the water enters the water inlet pipe. The sewage is flocculated and mixed under the action of the flocculant and the coagulant to form floccules and floating floc foam in the water. The floccules and foams are in the funnel 60. The floccules roll in the middle area of ​​the funnel under the pressure of the water entering the water inlet pipe. When foam is generated, the foam floats on the water surface, and the overflowed water contains very little floccules. When the foam is higher than the upper edge of the funnel 60 and contacts the water level sensor 70, the funnel valve 61 is opened to discharge Flocculated dirt, at the same time, the water inlet pipe is shut off through the water inlet pipe valve 15. After the flocculated dirt is emptied, the funnel valve 61 is closed, and the water inlet pipe valve 15 is opened to continue supplying water. The treated water with most of the flocculants removed flows through the flocculation tank 30 and the steady flow tank 40, and flows out from the overflow weir 41 on the upper part of the steady flow tank. A small amount of flocculated dirt is filtered in the filter layer 43 of the overflow weir 41. After filtration, the clean water enters the photocatalytic treatment tank 50. After ultraviolet light sterilization treatment in the photocatalytic treatment tank 50, the clean water basically meets the discharge standard. However, as time goes on, there will still be a small amount of flocculants. At this time, another layer of filtration treatment can be added, such as the filter plate 80 in the figure. The clean water filtered by this filter plate 80 can fully meet the requirements of recycling. In this embodiment, the air filling adjustment device provided on the flocculant filling pipe 11 can be achieved by piercing holes in the flocculant filling pipe 11. The gas-liquid mixing ratio is preferably 9:1. In addition, if the coagulant is also mixed with gas, the cleaning effect will be enhanced. An enhancer can be placed in the coagulant to enhance the flow of the liquid and the full mixing of the air.

[0022] This sewage treatment device newly adopts a funnel to collect sewage, which is more efficient and effective. The coordinated use of several pools also makes its structure more compact, which can save site utilization. Example 2

[0023] This embodiment adopts a highly integrated car wash wastewater treatment and reuse device, such as Figures 2 to 5 As shown, the integrated car wash wastewater treatment and reuse device includes a flocculation tank 30 and a stabilization tank 40 arranged side by side in an L shape, with a partition provided in the middle and connected in the middle of the bottom, see the through port 17, the water inlet of the flocculation tank 30 is set at a high position, the stabilization tank 40 is on the other side, and the high position is an overflow weir 41, the wastewater to be treated and the flocculant are mixed in proportion and fully mixed by the pump body 20 under pumping and stirring, and then put into the funnel 60, wherein the flocculants roll in the funnel 60, and a lot of foam is produced at the same time, when the foam is gradually raised When the water level rises and touches the upper water level sensor 70, the water inlet pipe valve 15 is closed to stop the water inlet, and the funnel valve 61 is opened to discharge the flocculated waste through the sewage outlet 62. When the waste is discharged, the funnel valve 61 is closed again, and the water inlet pipe valve 15 is opened to continue the water supply. The water that continuously overflows from the funnel 60 contains a small amount of flocculated matter. The overflowing water passes through the L flocculation tank 30 and the steady flow tank 40, and the water level slowly rises to the overflow weir 41. An inclined plate 42 is provided at the overflow weir, and a filter layer 43 is provided on the inclined plate. By treating the filter layer 43, most of the flocculants in the water are removed. At this time, the treated water is sterilized by ultraviolet light and nano-photocatalyst mesh carriers in the photocatalytic treatment tank 50. The water after this step can be recycled, but sometimes there is a small amount of material in the water after photocatalytic treatment that needs to be filtered. At this time, as shown in the figure, it is filtered again. As shown in the figure, the water in the photocatalytic treatment tank 50 is lifted to the filter tank 90 through the connecting pipe 44. A filter plate 80 is provided in the filter tank 90. ​​The water treated by this procedure can fully meet the national requirements and is discharged through the water outlet 91 for subsequent recycling. After working for a long time, the concentration of flocculants in the water in the photocatalytic treatment tank 50 also needs to be increased. At this time, it can be connected to the water inlet pipe 10 through the discharge port 45 and the discharge valve 92 for flocculation circulation. The light source plug-in board 51 and the cover plate 52 on the top of the photocatalytic treatment tank 50 are both prior art, which are partially omitted in the figure of this application and will not be described in detail. In addition, the control technologies of the water level sensor 70, the funnel valve 61, and the water inlet pipe valve 15 involved in the processing method of the present application are all existing mature technologies, and will not be described in detail in the present application.

[0024] The utility model has a simple structure, a smooth sewage treatment process, high efficiency, and saves land. Although the utility model has been shown and described with reference to the above embodiments, it will be understood by those skilled in the art that various changes in form and details can be made without departing from the spirit and scope of the utility model as defined by the claims and their equivalents, and all belong to the scope of protection of the utility model.

Claims

1. An integrated car wash wastewater treatment and reuse device, characterized in that: The water inlet pipe is connected to the flocculation tank, the steady flow tank, and the photocatalytic treatment tank in sequence through the pump body. The pump body is connected to the water inlet pipe end and the flocculant filling pipe; A flocculant collecting device is provided on the upper part of the flocculation tank, and the flocculant collecting device includes a bell-shaped funnel, the bottom of the funnel is connected to the sewage pipe through a valve, and two water level sensors are provided on the funnel, one of which has a sensing point not higher than the upper edge of the funnel, and the other has a sensing point 2-5 cm higher than the funnel; The stabilizing pool is connected to the photocatalytic treatment pool via an overflow weir, and the overflow weir comprises an inclined plate on which a filtering layer is arranged.

2. The integrated car wash wastewater treatment and reuse device according to claim 1 is characterized in that: The water inlet pipe opening is aligned with the middle area of ​​the funnel.

3. The integrated car wash wastewater treatment and reuse device according to claim 1 is characterized in that: An air filling regulating device is provided on the flocculant filling pipe.

4. The integrated car wash wastewater treatment and reuse device according to claim 3 is characterized in that: It also includes a coagulant filling pipe, which is arranged at one end of the water inlet pipe close to the funnel.

5. The integrated car wash wastewater treatment and reuse device according to claim 4 is characterized in that: The water inlet pipe is provided with a flow regulating valve, which is arranged before the coagulant aid filling pipe.

6. The integrated car wash wastewater treatment and reuse device according to claim 4 is characterized in that: The flocculant is polyaluminium chloride, and the coagulant aid is polyacrylamide.

7. The integrated car wash wastewater treatment and reuse device according to any one of claims 1 to 6, characterized in that: The treatment device is a cabinet, including two side-by-side L-shaped flocculation tanks and stabilization tanks, which are connected in the middle of the bottom. The height of the overflow weir of the stabilization tank is consistent with the height of the funnel. The photocatalytic treatment tank is arranged in the notch of the L-shaped flocculation tank and the stabilization tank. The photocatalytic tank is divided into several chambers connected at the bottom or top, and each chamber is provided with an ultraviolet light tube and a nano-photocatalyst mesh carrier.

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