A comprehensive treatment pool and treatment method

Abstract

This invention relates to the field of emergency wastewater and initial rainwater treatment technology, specifically to a comprehensive treatment tank and method. It includes a front tank and a rear tank; the front tank is connected to an inlet pipe, and the rear tank is connected to an outlet pipe; an grease trap wall is provided between the front and rear tanks, with at least one connecting opening, allowing the front and rear tanks to communicate with each other; at least one layer of oil-absorbing gates is provided at the connecting opening, with the coverage area of ​​the oil-absorbing gates being larger than the area of ​​the connecting opening; a door groove is provided vertically on the grease trap wall, and the oil-absorbing gates are fitted into the door grooves; each oil-absorbing gate includes a frame filled with oil-absorbing material. This invention combines a traditional emergency tank and an initial rainwater tank, enabling the treatment of oily initial rainwater and the collection of oily emergency wastewater in case of an accident, reducing land occupation, simplifying operation, and reducing pollution risk. Furthermore, the oil-absorbing gates in this invention are easy to replace, allowing direct replacement of the oil-absorbing material, and the frame structure is reusable.

Description

Technical Field

[0001] This invention relates to the field of emergency wastewater and initial rainwater treatment technology, specifically to a comprehensive treatment pond and treatment method. Background Technology

[0002] Accident wastewater refers to wastewater discharged during accidents in production, storage, and transportation facilities, including fire-fighting wastewater, leaked materials, and rainwater during the accident. Initial rainwater is rainwater generated at the initial stage of rainfall in the contaminated area, ideally measured as the rainfall volume within the first 15-30 minutes of a rainfall event, or the initial rainfall depth of 20-30 mm. Currently, many industries require the establishment of accident pools and initial rainwater pools, especially those involving oil-based substances, such as chemical plants, oilfield operations, and highways or roads crossing rivers. However, the separate installation of accident pools and initial rainwater pools in these industries results in large footprints and the need for valve switching, which may lead to the risk of oil and other pollutants being released into the environment due to untimely operation. Summary of the Invention

[0003] To address the technical problems arising from the design flaws of traditional emergency tanks and initial rainwater tanks, this invention provides an integrated treatment tank and treatment method that combines traditional emergency tanks and initial rainwater tanks. This allows for the treatment of oily initial rainwater and the collection of oily emergency wastewater in the event of an accident, reducing land occupation, simplifying operation, and minimizing pollution risks.

[0004] To solve the above problems, the technical solution provided by the present invention is as follows:

[0005] A comprehensive treatment tank includes a front tank and a rear tank; the front tank is connected to an inlet pipe, and the rear tank is connected to an outlet pipe, the bottom elevation of the outlet pipe being lower than that of the inlet pipe; an grease trap wall is provided between the front tank and the rear tank, the grease trap wall having at least one connecting opening, the front tank and the rear tank being interconnected through the connecting opening; at least one layer of oil-absorbing gates is provided at the connecting opening, the coverage area of ​​the oil-absorbing gates being larger than the area of ​​the connecting opening; a door groove is provided vertically on the grease trap wall, the oil-absorbing gates being fitted into the door grooves; the oil-absorbing gates include a frame, the frame being filled with oil-absorbing material.

[0006] Optionally, it also includes a lifting part located above the oil suction door, the lifting part having a lifting stroke greater than or equal to the door groove height.

[0007] Optionally, the frame is provided with a lifting component for connecting to the lifting unit.

[0008] Optionally, the rear pool is connected to a drain pipe, and the connection port between the drain pipe and the rear pool is located at the lowest point of the bottom surface of the rear pool.

[0009] Optionally, the lowest edge profile of at least one of the connecting ports is located at the lowest point of the height of the forepool, and the elevation of the highest edge profile is lower than the bottom elevation of the outlet pipe of the rear pool.

[0010] Optionally, the oil-absorbing material is an oil-absorbing sponge or an oil-absorbing resin.

[0011] Optionally, a pump body is provided in the forebay.

[0012] Optionally, the skeleton is a steel reinforcement skeleton.

[0013] One treatment method utilizes the aforementioned integrated treatment tank. In the absence of an accident, initial rainwater is collected and enters the forebay through an inlet pipe. Water in the forebay flows through an oil suction gate into the rearbay, thus isolating some oily contaminants and suspended solids in the forebay, while the oily contaminants are absorbed by the oil suction gate. When the oil suction gate is full of oil, it is raised to the surface of the tank, the oil-absorbing material inside the gate is replaced, and then the replaced gate is reset. In the event of an accident, wastewater is collected and enters the forebay through an inlet pipe. Upper-layer oily contaminants are stored in the forebay, while lower-layer water flows through the oil suction gate into the rearbay, isolating the oily contaminants in the forebay and simultaneously suctioning out the oily contaminants in the forebay. When the oil suction gate is full of oil, it is raised to the surface of the tank, the oil-absorbing material inside the gate is replaced, and then the replaced gate is reset.

[0014] Optionally, the height of the inlet pipe from the bottom of the forepool is h1, the height of the outlet pipe from the bottom of the rear pool is h2, the length of the forepool is a, and the width of the forepool is b; in the absence of an accident, the effective volume for initial rainwater treatment in the forepool is V2, where V2 = h2 × a × b; in the event of an accident, the effective volume for temporary storage of oil pollutants in the forepool is V1, where V1 = (h1 - h2) × a × b.

[0015] Beneficial effects

[0016] Compared with the prior art, the technical solution provided by this invention has the following advantages:

[0017] To address the technical problems arising from the design flaws of traditional emergency pools and initial rainwater pools, this invention combines the traditional emergency pool and initial rainwater pool into one unit. This unit can treat oily initial rainwater and collect oily emergency wastewater in the event of an accident, reducing land occupation, simplifying operation, and reducing pollution risks. Furthermore, the oil suction door in this invention is easy to replace, the oil-absorbing material can be directly replaced, and the frame structure can be reused. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a comprehensive treatment pool proposed in an embodiment of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of a comprehensive treatment pool proposed in an embodiment of the present invention. Detailed Implementation

[0020] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings and embodiments.

[0021] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. The terms "first," "second," etc., used in this invention are for the convenience of describing the technical solutions of the invention and have no specific limiting effect; they are all general terms and do not constitute a limitation on the technical solutions of the invention. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, not to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contradict or conflict, all of which are within the scope of protection claimed by this invention.

[0022] Example 1

[0023] Combined with appendix Figure 1A comprehensive treatment tank includes a front tank 3 and a rear tank 8; the front tank 3 is connected to an inlet pipe 1, and the rear tank 8 is connected to an outlet pipe 9, the bottom elevation of the outlet pipe 9 being lower than the bottom elevation of the inlet pipe 1; an oil separator wall 4 is provided between the front tank 3 and the rear tank 8, and at least one connecting opening is provided on the oil separator wall 4, through which the front tank 3 and the rear tank 8 are interconnected; at least one layer of oil suction gate 6 is provided at the connecting opening, the coverage area of ​​the oil suction gate 6 being larger than the area of ​​the connecting opening; a door groove 5 is provided on the oil separator wall 4 along the vertical direction, and the oil suction gate 6 is configured to cooperate with the door groove 5; the oil suction gate 6 includes a frame, and the frame is filled with oil-absorbing material.

[0024] This embodiment of a comprehensive treatment tank combines a traditional emergency tank and an initial rainwater tank, which can treat oily initial rainwater and collect oily emergency wastewater in the event of an accident, reducing land occupation, simplifying operation, and reducing pollution risk.

[0025] In this embodiment, the integrated treatment tank consists of a front tank 3 and a rear tank 8, which are connected by a connecting port. A movable, liftable suction gate 6 is installed at the connecting port. Through the suction effect of the suction gate 6, the water flowing from the front tank 3 to the rear tank 8 is treated. Specifically, the suction gate 6 can intercept oil pollutants and suspended solids in the initial rainwater in the front tank 3, allowing only clean water to enter the rear tank 8; or it can intercept oil pollutants in emergency wastewater in the front tank 3. Thus, oil pollutants are intercepted in the front tank 3, achieving collection and facilitating timely removal to ensure that oil pollutants are not discharged into the environment.

[0026] Based on the background technology and the above description, it can be seen that the integrated treatment tank of this embodiment has at least the following two operating conditions: In the absence of an accident, the initial rainwater is collected and enters the front tank 3 through the inlet pipe 1. The water in the front tank 3 flows through the oil suction gate 6 into the rear tank 8, so that some oil pollutants and suspended solids are isolated in the front tank 3, and some oil pollutants are absorbed by the oil suction gate 6. When the oil suction gate 6 is full of oil, the oil suction gate 6 is raised to the surface of the tank, the oil-absorbing material in the oil suction gate 6 is replaced, and then the replaced oil suction gate 6 is reset.

[0027] In the event of an accident, the wastewater is collected and enters the forepool 3 through the inlet pipe 1. The upper layer of oily pollutants is stored in the forepool 3, while the lower layer of water flows through the oil suction gate 6 and enters the rear pool 8, so that the oily pollutants are isolated in the forepool 3. At the same time, the oily pollutants in the forepool 3 are sucked out. When the oil suction gate 6 is full of oil, the oil suction gate 6 is raised to the surface of the pool, the oil-absorbing material inside the oil suction gate 6 is replaced, and then the replaced oil suction gate 6 is reset.

[0028] The oil-absorbing material filling the frame of the oil-absorbing gate 6 can be an oil-absorbing sponge or oil-absorbing resin. The frame of the oil-absorbing gate 6 can be a steel frame to improve durability. This embodiment ensures the reusability of the oil-absorbing gate 6, and is both environmentally friendly and practical.

[0029] Furthermore, in this embodiment, multiple connecting ports can be provided, and each connecting port is equipped with an oil suction gate 6 to improve the adsorption processing efficiency.

[0030] Furthermore, the number of oil suction gates 6 at any connection port can be multiple, meaning multiple oil suction gates 6 can be installed at the same connection port to further enhance the adsorption and blocking effect of oil contaminants. Moreover, when multiple oil suction gates 6 are installed at any connection port, continuous operation can be achieved. When it is necessary to replace the oil-absorbing material inside the oil suction gate 6, only one oil suction gate 6 needs to be lifted to replace the oil-absorbing material filled in that oil suction gate 6, while the other oil suction gates 6 do not need to be removed, and the adsorption operation can continue.

[0031] In this embodiment, the door groove 5 is designed to limit the oil suction door 6 and also to keep the oil suction door 6 stable during the lifting and removal process.

[0032] Example 2

[0033] Combined with appendix Figure 1 Compared with the technical solution of Embodiment 1, the integrated treatment pool of this embodiment can be improved as follows: the lifting part 7 is located on the upper side of the oil suction door 6, and the lifting stroke of the lifting part 7 is greater than or equal to the height of the door groove 5.

[0034] In this embodiment, the lifting part 7 is a lifting device used to lift the oil suction valve 6 along the height direction to facilitate the replacement of the oil-absorbing material inside the oil suction valve 6, thereby improving practicality and convenience. In an optional embodiment, the oil suction valve 6 may be equipped with lifting rings, lifting lugs, and other lifting components to facilitate connection with the lifting structure of the lifting equipment for lifting purposes.

[0035] Example 3

[0036] Combined with appendix Figure 1 Compared with the technical solutions of embodiments 1 or 2, the integrated treatment tank of this embodiment can be improved as follows: the rear tank 8 is connected to a drain pipe 10, and the connection port of the drain pipe 10 and the rear tank 8 is located at the lowest point of the bottom surface of the rear tank 8. In this embodiment, the drain pipe 10 is used to drain the water in the rear tank 8, and the connection port of the drain pipe 10 and the rear tank 8 is located at the lowest point of the bottom surface of the rear tank 8 in order to ensure that the water in the rear tank 8 can be drained as much as possible.

[0037] Example 4

[0038] Combined with appendix Figure 1 Compared with any of the technical solutions in embodiments 1-3, the integrated treatment tank of this embodiment can be improved as follows: the lowest edge contour of at least one connecting port is located at the lowest point of the height of the front pool 3. The way the connecting port is set in this embodiment can ensure that the water flows towards the connecting port, thereby improving the adsorption effect.

[0039] Example 5

[0040] Combined with appendix Figure 1 Compared with any of the technical solutions in embodiments 1-4, the integrated treatment tank of this embodiment can be improved as follows: a pump body is provided in the forebay 3. In this embodiment, the pump body is provided to facilitate the extraction of oily contaminants blocked in the forebay 3.

[0041] Example 6

[0042] Combined with appendix Figure 1 This embodiment proposes a treatment method using a comprehensive treatment tank as described in any one of the technical solutions in embodiments 1-5, comprising: In the absence of an accident, initial rainwater is collected and enters the front pool 3 through the inlet pipe 1. Water in the front pool 3 flows through the oil suction gate 6 into the rear pool 8, so that some oil pollutants and suspended solids are isolated in the front pool 3, and some oil pollutants are absorbed by the oil suction gate 6; when the oil suction gate 6 is full of oil, it is raised to the surface of the pool, the oil-absorbing material inside the oil suction gate 6 is replaced, and then the replaced oil suction gate 6 is reset; In the event of an accident, accident wastewater is collected and enters the front pool 3 through the inlet pipe 1. Upper layer oil pollutants are stored in the front pool 3, and lower layer water flows through the oil suction gate 6 into the rear pool 8, so that oil pollutants are isolated in the front pool 3, and oil pollutants in the front pool 3 are simultaneously suctioned; when the oil suction gate 6 is full of oil, it is raised to the surface of the pool, the oil-absorbing material inside the oil suction gate 6 is replaced, and then the replaced oil suction gate 6 is reset.

[0043] Example 7

[0044] Combined with appendix Figure 1 The processing method of this embodiment can be improved as follows compared with the technical solution of embodiment 6: the height of the inlet pipe 1 from the bottom of the front pool 3 is h1, the height of the outlet pipe 9 from the bottom of the rear pool 8 is h2, the length of the front pool 3 is a, and the width of the front pool 3 is b; under normal circumstances, the effective volume of the initial rainwater treatment in the front pool 3 is V2, where V2 = h2 × a × b; under normal circumstances, the effective volume of the temporary storage of oil pollutants in the front pool 3 is V1, where V1 = (h1 - h2) × a × b.

[0045] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A processing method, characterized in that, The system includes a comprehensive treatment tank, comprising a front tank and a rear tank; the front tank is connected to an inlet pipe, and the rear tank is connected to an outlet pipe, wherein the bottom elevation of the outlet pipe is lower than the bottom elevation of the inlet pipe. An oil separator wall is provided between the front pool and the rear pool, and at least one communication port is provided on the oil separator wall, through which the front pool and the rear pool are connected to each other. At least one oil-absorbing door is provided at the connection opening, and the coverage area of ​​the oil-absorbing door is larger than the area of ​​the connection opening; a door groove is provided on the wall of the oil separator along the vertical direction, and the oil-absorbing door is configured to cooperate with the door groove; the oil-absorbing door includes a frame, and the frame is filled with oil-absorbing material; It also includes a lifting part, which is located above the oil suction door, and the lifting stroke of the lifting part is greater than or equal to the height of the door groove; The treatment method includes: in the absence of an accident, the initial rainwater is collected and enters the forebay through the inlet pipe; the water in the forebay flows through the oil suction gate into the rearbay, so that some oil pollutants and suspended solids are isolated in the forebay, and some oil pollutants are absorbed by the oil suction gate; when the oil suction gate is full of oil, the oil suction gate is raised to the surface of the pool, the oil-absorbing material inside the oil suction gate is replaced, and then the replaced oil suction gate is reset. In the event of an accident, the collected wastewater enters the forebay through the inlet pipe. The upper layer of oily contaminants is stored in the forebay, while the lower layer of water flows through the oil suction gate into the rearbay, thus isolating the oily contaminants in the forebay and simultaneously pumping out the oily contaminants in the forebay. When the oil suction gate is full of oil, it is raised to the surface of the pool, the oil-absorbing material inside the oil suction gate is replaced, and then the replaced oil suction gate is reset. The height of the inlet pipe from the bottom of the front pool is h1, the height of the outlet pipe from the bottom of the rear pool is h2, the length of the front pool is a, and the width of the front pool is b. In the absence of an accident, the effective volume for initial rainwater treatment in the forebay is V2, where V2 = h2 × a × b; In the event of an accident, the effective volume for temporary storage of oil pollutants in the forebay is V1, where V1 = (h1 - h2) × a × b.

2. The processing method according to claim 1, characterized in that, The frame is equipped with a lifting component, which is used to connect to the lifting unit.

3. The processing method according to claim 1, characterized in that, The rear pool is connected to a drain pipe, and the connection port between the drain pipe and the rear pool is located at the lowest point of the bottom surface of the rear pool.

4. The processing method according to claim 1, characterized in that, The lowest edge profile of at least one of the connecting ports is located at the lowest point of the height of the forepool, and the elevation of the highest edge profile is lower than the bottom elevation of the outlet pipe of the rear pool.

5. The processing method according to claim 1, characterized in that, The oil-absorbing material is an oil-absorbing sponge or oil-absorbing resin.

6. The processing method according to claim 1, characterized in that, A pump body is installed in the forebay.

7. The processing method according to claim 1, characterized in that, The skeleton is a steel reinforcement skeleton.

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