An integrated device for processing PAM and TP

Abstract

The utility model discloses a kind of integrated equipment of processing PAM and TP. The equipment includes A2O biochemical treatment module unit, electrochemical sedimentation unit and operating room;Wherein, A2O biochemical treatment module unit, electrochemical sedimentation unit are sequentially arranged.The utility model uses integrated equipment, for rain season overflow, rural sewage or non-point source pollution can be emergently handled;Anode uses Ti / Ru-Ir (ruthenium iridium electrode), with titanium plate as base, coats metal oxide active layer, and corrosion resistance is good, decomposition, high sedimentation efficiency.Utilize electrochemical sedimentation, total phosphorus in tail water is solidified in the form of CaxPO4 sediment (bird dropping-like), realizes the recycling of resources.

Description

Technical Field

[0001] This utility model relates to an integrated device for processing PAM and TP. Background Technology

[0002] Electrocatalytic oxidation technology, due to its high efficiency in degrading organic matter and simultaneously removing heavy metals, has been applied in industries such as steel, petroleum, and electroplating to achieve the goals of wastewater recycling and zero discharge.

[0003] Polyacrylamide (PAM) possesses high water solubility and chemical activity, making it suitable as a flocculant, thickener, and drag reducer in water treatment, oil extraction, and the mining and metallurgical industries. In water treatment, injecting PAM solution can significantly improve total phosphorus (TP) removal rates. However, excessive PAM can increase the viscosity of effluent, enhancing its ability to carry suspended solids and leading to excessive levels of suspended solids. Furthermore, PAM promotes the growth of sulfate-reducing bacteria in water and has a strong corrosive effect on water treatment facilities. Although PAM itself is not toxic, under natural conditions, it degrades over time to form toxic acrylamide, which can damage the nervous system and vital internal organs. Therefore, effectively degrading PAM in water has become a key focus in the environmental field. Utility Model Content

[0004] To overcome the above-mentioned defects, the purpose of this utility model is to provide an integrated device for treating PAM and TP, and to attempt to use electrocatalytic oxidation technology to deeply treat the integrated effluent, simultaneously removing nitrate nitrogen and orthophosphate, and achieving high-value recovery and utilization of phosphorus.

[0005] To achieve the above objectives, this utility model provides an integrated device for processing PAM and TP, comprising an A2O biochemical treatment module unit, an electrochemical sedimentation unit, and an operating room; wherein the A2O biochemical treatment module unit and the electrochemical sedimentation unit are arranged sequentially.

[0006] Furthermore, the A2O biochemical treatment unit comprises three parts: an anaerobic tank, an anoxic tank, and an aerobic tank; the water flows through these three parts in sequence before entering the electrochemical sedimentation unit.

[0007] Furthermore, a submersible mixer is installed in the anaerobic tank to assist in propulsion and prevent water from settling inside the device.

[0008] Furthermore, a funnel-shaped opening is installed above the anaerobic tank to prevent overflow.

[0009] Furthermore, an intercepting net is installed at the connection point between the anaerobic tank and the anoxic tank.

[0010] Furthermore, submersible mixers and check valves are installed in the anoxic tank to prevent settling and backflow; sponge balls are also installed in the anoxic tank to facilitate sludge reaction.

[0011] Furthermore, aeration discs are installed in the aerobic tank; sponge balls are also installed in the aerobic tank to facilitate sludge reaction, and the aeration discs adopt a ring layout to facilitate uniform aeration.

[0012] Furthermore, the electrochemical sedimentation unit includes: a transformer; an anode metal plate and a cathode metal plate connected to the output terminal of the transformer; and a reciprocating sludge scraper on the anode plate.

[0013] Furthermore, the cathode metal plate must be made of pure titanium or TiO2, and the anode metal plate must be made of Ti / Ru-Ir (ruthenium-iridium electrode) plate, both with dimensions of 1500X1500mm and a thickness of 5mm.

[0014] Furthermore, the transformer is set with a voltage of 30V and a current density of 30mA / cm2; the metal plate spacing is 1000mm.

[0015] Compared with the prior art, this utility model has the following characteristics:

[0016] 1. Unlike the traditional A2O treatment process which is not easy to move, this integrated equipment can provide emergency treatment for rainy season overflows, rural sewage or non-point source pollution.

[0017] 2. Unlike integrated equipment, it adopts A2O composite electrochemical sedimentation to further improve the treatment effect on effluent and excess PAM in the process; unlike electrochemical sedimentation process, the anode adopts Ti / Ru-Ir (ruthenium-iridium electrode), with titanium plate as substrate and coated with metal oxide active layer, which has good corrosion resistance and high decomposition and sedimentation efficiency.

[0018] 3. Unlike traditional processes, electrochemical sedimentation can be used to solidify total phosphorus in the effluent as CaxPO4 sediment (similar to struvite), thereby achieving resource recycling. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the top pipeline layout of an embodiment of the integrated equipment for processing PAM and TP according to this utility model;

[0020] Figure 2 for Figure 1 Side view of the pipeline layout.

[0021] Figure 3 for Figure 1 5-5 sectional view.

[0022] Figure 4 for Figure 1 A schematic diagram of the bottom layout of an embodiment of an integrated device for processing PAM and TP.

[0023] Figure 5for Figure 1 Schematic diagram of section 1-1.

[0024] Figure 6 for Figure 1 3-3 sectional view.

[0025] Figure 7 for Figure 1 Schematic diagram of sectional view 4-4.

[0026] Figure 8 for Figure 1 Schematic diagram of section 2-2.

[0027] 1. Anaerobic tank; 2. Anoxic tank; 3. Aerobic tank; 4. Electrochemical sedimentation unit; 5. Permeate pump (self-priming pump); 6. Cleaning pump; 7. Cleaning tank; 8. Control system (control cabinet); 9. Submersible mixer; 10. Blower; 11. Aeration disc; 12. Packing material (sponge balls); 13. Sludge pump; 14. Cathode metal plate; 15. Anode metal plate; 16. Reciprocating sludge scraper with lifting guide rail. Detailed Implementation

[0028] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] like Figures 1 to 8 As shown, this utility model discloses an integrated device for treating PAM and TP, comprising an A2O biochemical treatment module unit, an electrochemical sedimentation unit, and an operating room, all integrated into a single unit. The A2O biochemical treatment module unit and the electrochemical sedimentation unit are connected sequentially via pipelines. The A2O biochemical treatment unit comprises three parts: an anaerobic tank 1, an anoxic tank 2, and an aerobic tank 3. Water flows through these three parts sequentially before entering the electrochemical sedimentation unit 4. The electrochemical sedimentation unit receives water from the biochemical treatment unit and mainly consists of a transformer, a cathode metal plate 14, an anode metal plate 15, and a reciprocating sludge scraper 16. The cathode plate must be made of pure titanium or TiO2, and the anode must be made of Ti / Ru-Ir (ruthenium-iridium electrode), both measuring 1500 x 1500 mm with a thickness of 5 mm. The transformer is set to a voltage of 30V and a current density of 30 mA / cm². The metal plates are spaced 1000 mm apart. A reciprocating sludge scraper is provided for the corresponding anode metal plate 15, which works in conjunction with the lifting guide rail to perform sludge scraping operation on the anode metal plate 15 in a reciprocating manner.

[0033] A submersible mixer 9 is installed inside the anaerobic tank 1 to assist in water flow and prevent water from settling inside the device. An overflow pipe is installed above the anaerobic tank, with its inlet designed as an overflow funnel. The anaerobic tank area adopts a high-inlet, low-outlet design, meaning the inlet pipe is located at the upper section of the anaerobic tank, and outlets are located at the bottom of both the anaerobic and anoxic tanks, with intercepting nets installed at the outlets.

[0034] A submersible mixer (9) is installed in the anoxic tank to prevent settling. Sponge balls are also provided to facilitate sludge reaction. A connecting pipe is installed inside the anoxic tank, with its upper opening located at the top and its lower opening connecting to the aerobic tank. An intercepting net is installed at the connection point between the anoxic tank and the anaerobic tank at the top, and a water collection funnel is installed at the top of the connecting pipe. An air-to-liquid extraction pipe is fixedly installed at the bottom of the anoxic tank, with its outlet located above the anaerobic tank.

[0035] Aeration discs are installed in the aerobic zone. Sponge balls are also included to facilitate sludge reaction, and the aeration discs are arranged in a ring for uniform aeration. The inlet position within the zone is low inlet and high outlet.

[0036] A gas extraction pipe is fixedly installed at the bottom of the electrochemical sedimentation tank, and the outlet of the gas extraction pipe is located above the anoxic tank.

[0037] Similar to other A2O devices, the equipment room is equipped with a self-priming pump 5, a cleaning pump 6, a cleaning tank 7, a PAM tank, a control cabinet 8, a blower 10, and a sludge pump 13. The blower 10 is connected to the aeration disc 11 through a pipe to complete the aeration operation; the self-priming pump 1 is connected to the PAM tank to complete the PAM dosing operation; the cleaning pump is connected to the cleaning tank to complete the cleaning operation; and the sludge pump 13 is connected to the A2O biochemical treatment module unit and the electrochemical sedimentation unit through a pipe to complete the sludge discharge operation.

[0038] In summary, this invention employs A2O composite electrochemical sedimentation to further improve the treatment effect on effluent and excess PAM during the process. Unlike traditional electrochemical sedimentation processes, the anode uses a Ti / Ru-Ir (ruthenium-iridium electrode) with a titanium plate as the substrate and a metal oxide active layer, resulting in good corrosion resistance and high decomposition and sedimentation efficiency. Electrochemical sedimentation solidifies total phosphorus in the effluent as CaxPO4 sediment (similar to struvite), achieving resource recovery and utilization.

[0039] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An integrated device for processing PAM and TP, characterized in that, The entire equipment is integrated, including the A2O biochemical treatment module, the electrochemical sedimentation unit, and the operating room. The A2O biochemical treatment module unit and the electrochemical sedimentation unit are connected in sequence via pipelines. The A2O biochemical treatment module unit includes three parts: an anaerobic tank, an anoxic tank, and an aerobic tank. Water flows through the three parts in sequence before entering the electrochemical sedimentation unit. The electrochemical sedimentation unit receives water from the biochemical treatment unit and consists of a transformer, a cathode metal plate, an anode metal plate, and a reciprocating sludge scraper. The cathode plate must be made of pure titanium or TiO2, and the anode must be made of Ti / Ru-Ir. The dimensions of both are 1500X1500mm and the thickness is 5mm. The transformer is set to a voltage of 30V and a current density of 30mA / cm2; the metal plates are spaced 1000mm apart. A reciprocating sludge scraper is provided for the corresponding anode metal plate, which works in conjunction with the lifting guide rail to perform sludge scraping operation on the anode metal plate in a reciprocating up and down motion. A submersible mixer is installed in the anaerobic tank to assist in the flow and prevent the water inside the device from settling. An overflow pipe is installed above the anaerobic tank, and the inlet of the overflow pipe is set as an overflow bell mouth. The anaerobic tank area adopts a high inlet and low outlet, that is, the inlet pipe is located in the upper section of the anaerobic tank, and the outlet is set at the bottom of the anaerobic tank and the anoxic tank. An interception net is installed at the outlet. Submersible mixers are installed in the anoxic tank to prevent sedimentation; at the same time, sponge balls are installed to facilitate sludge reaction. A connecting pipe is installed inside the anoxic tank. The upper opening of the connecting pipe is located in the upper part of the anoxic tank, and the lower opening of the connecting pipe is connected to the aerobic tank. An intercepting net is installed at the connection point between the upper part of the anoxic tank and the anaerobic tank. A water collection funnel is installed at the upper part of the connecting pipe. A gas extraction liquid pipe is fixedly installed at the bottom of the anoxic tank, and the outlet of the gas extraction liquid pipe is located above the anaerobic tank. Setting up aeration discs and sponge balls in the aerobic zone is beneficial for sludge reaction. The aeration discs adopt a ring layout to facilitate uniform aeration. A gas extraction pipe is fixedly installed at the bottom of the electrochemical sedimentation tank, and the outlet of the gas extraction pipe is located above the anoxic tank. The equipment room is equipped with a self-priming pump, a cleaning pump, a cleaning tank, a PAM tank, a control cabinet, a blower, and a sludge pump. The blower is connected to the aeration discs via pipes to perform aeration operations. The self-priming pump is connected to the PAM tank to perform PAM dosing operations. The cleaning pump is connected to the cleaning tank to perform cleaning operations. The sludge discharge pump is connected to the A2O biochemical treatment module unit and the electrochemical sedimentation unit via pipes to perform sludge discharge operations.

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