CN216662732U - Hexavalent chromium waste water high-efficiency processing equipment - Google Patents
Hexavalent chromium waste water high-efficiency processing equipment Download PDFInfo
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- CN216662732U CN216662732U CN202122632219.1U CN202122632219U CN216662732U CN 216662732 U CN216662732 U CN 216662732U CN 202122632219 U CN202122632219 U CN 202122632219U CN 216662732 U CN216662732 U CN 216662732U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The utility model belongs to the field of wastewater treatment, and particularly discloses hexavalent chromium wastewater high-efficiency treatment equipment which comprises a hexavalent chromium wastewater raw water storage tank, a physicochemical precipitation reaction tank, a feeding storage tank mechanism, a physicochemical precipitation water-outlet bag filter tank, a physicochemical precipitation water-outlet PH regulation tank, a physicochemical precipitation water-outlet transfer tank, an activated carbon filter tank, a hexavalent chromium resin water-inlet bag filter tank and a resin tank group, wherein the hexavalent chromium wastewater raw water storage tank is communicated with an external wastewater outlet and is used for storing wastewater; the middle part of the inner side of the physical and chemical precipitation reaction tank is provided with three layers of stirring impellers, the bottom of the physical and chemical precipitation reaction tank is a conical bottom, and the conical bottom wall of the physical and chemical precipitation reaction tank is provided with a perforated aeration pipeline. The equipment can stably treat hexavalent chromium to below 0.1ppm by resin adsorption treatment, and meets the requirement of environmental protection.
Description
Technical Field
The utility model relates to the field of wastewater treatment, in particular to a hexavalent chromium wastewater high-efficiency treatment device.
Background
The metallurgical, electroplating and tanning industries produce large volumes of chromium-containing wastewater. Chromium-containing wastewater discharged without reaching the standard causes great harm to the ecological environment and human health, and chromium element is listed as one of the most toxic pollutants by the United States Environmental Protection Agency (USEPA). In particular, hexavalent chromium in wastewater is a substance having high migration, high toxicity and high carcinogenicity, and the toxicity is 500 times that of trivalent chromium. The discharge limit of hexavalent chromium is 0.5mg/L according to the comprehensive wastewater discharge Standard (GB8978-2002) of China. Therefore, the effective treatment of the hexavalent chromium-containing wastewater is very important.
The current environmental protection has high requirement on hexavalent chromium, the emission standard requirement is less than 0.5ppm, and the traditional heavy metal trapping agent precipitation method can not stably reach the standard, so that a hexavalent chromium wastewater high-efficiency treatment device with high stability and treatment rate is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hexavalent chromium wastewater high-efficiency treatment device to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a hexavalent chromium waste water high-efficiency treatment device comprises a hexavalent chromium waste water raw water storage tank, a physical and chemical precipitation reaction tank, a feeding storage tank mechanism, a physical and chemical precipitation water outlet bag filter tank, a physical and chemical precipitation water outlet PH adjusting tank, a physical and chemical precipitation water outlet transfer tank, an activated carbon filter tank, a hexavalent chromium resin water inlet bag filter tank and a resin tank set, wherein the hexavalent chromium waste water raw water storage tank is communicated with an external waste water outlet and is used for storing waste water; the middle part of the inner side of the physical and chemical precipitation reaction tank is provided with three layers of stirring impellers, the bottom of the physical and chemical precipitation reaction tank is a conical bottom, the conical bottom wall of the physical and chemical precipitation reaction tank is provided with a perforated aeration pipeline, and a liquid level sensor capable of automatically controlling the liquid level in the storage tank is arranged in the physical and chemical precipitation reaction tank; a perforated aeration pipeline is connected to the bottom side of the physical and chemical precipitation reaction tank, the perforated aeration pipeline is communicated with a compressed air storage tank, the compressed air storage tank is connected with a screw air compressor, compressed air is generated by the screw air compressor, and an electromagnetic valve is arranged on a perforated aeration pipe; and a physicochemical precipitation reaction tank is also internally provided with a physicochemical reaction PH controller for detecting the PH value of the wastewater and controlling the physicochemical reaction PH of the wastewater in the physicochemical precipitation reaction tank, and a charging storage tank mechanism is connected to the physicochemical precipitation reaction tank.
Preferably, all be equipped with the liquid level inductor that is used for controlling its height liquid level in the reinforced storage tank mechanism, reinforced storage tank mechanism includes 25% hydrochloric acid storage tank, 30% sodium metabisulfite storage tank, 50% liquid caustic soda storage tank, 10% PAC storage tank and 0.2% PAM storage tank.
Preferably, the physical and chemical precipitation reaction tank is provided with a physical and chemical precipitation water outlet and a precipitation mud water outlet, the physical and chemical precipitation water outlet and the precipitation mud water outlet are respectively communicated with a physical and chemical precipitation water outlet bag filter tank and a mud water storage tank through pipelines, and a 1-micron filter bag for filtering suspended matters in the physical and chemical precipitation water outlet bag filter tank is arranged in the physical and chemical precipitation water outlet bag filter tank; the physicochemical precipitation effluent bag filter tank is communicated with a physicochemical precipitation effluent pH adjusting tank, a physicochemical precipitation effluent pH controller is arranged on the physicochemical precipitation effluent pH adjusting tank, and a trace amount of 25% hydrochloric acid or 50% liquid caustic soda is added into the physicochemical precipitation effluent pH adjusting tank and is used for adjusting and controlling the pH of the physicochemical precipitation effluent to 6-9.
Preferably, the physicochemical precipitation effluent PH adjusting tank is communicated with a physicochemical precipitation effluent transfer tank through a pipeline, the physicochemical precipitation effluent transfer tank is used for transferring physicochemical precipitation effluent, and a liquid level sensor for controlling the high and low liquid levels in the storage tank is arranged in the physicochemical precipitation effluent transfer tank; the activated carbon filter tank is communicated with the water transferring tank for the physicochemical precipitation effluent through a centrifugal pump and a pipeline, the activated carbon filter tank adopts activated carbon to filter transferred wastewater, and the activated carbon filter tank is communicated with a filtering tank for a hexavalent chromium resin water inlet bag; the hexavalent chromium resin water inlet bag filter tank is internally provided with a 0.5um filter bag for filtering the wastewater again and removing suspended matters in the wastewater.
Preferably, hexavalent chromium resin bag filter tank that intakes connects has the resin tank group, and the resin tank group includes hexavalent chromium adsorption resin jar A, hexavalent chromium adsorption resin jar B (19), hexavalent chromium adsorption resin jar C that from left to right in proper order the series connection leads to, and the waste water after the adsorption of resin tank group is through the drainage pipeline to hexavalent chromium adsorption resin jar transfer jar in going out water and is carried out the transfer and discharge, is equipped with the hexavalent chromium adsorption resin jar of going out water PH controller that is used for detecting the resin absorption back play water PH on the drainage pipeline.
Preferably, the mud water storage tank is communicated with a plate-and-frame filter press, the plate-and-frame filter press is used for carrying out filter pressing on mud water, carrying out solid-liquid separation, and discharging filter pressing effluent to press filtering water for transferring to a tank; the filter-pressing effluent transfer tank is used for transferring effluent of the filter press, and a liquid level sensor for automatically controlling the high and low liquid levels in the storage tank is arranged in the filter-pressing effluent transfer tank; the filter-pressing water-in rotary tank is communicated with a filter tank of a filter-pressing water bag, a 1um filter bag used for filtering suspended matters in the filter-pressing water bag is arranged in the filter tank of the filter-pressing water bag, and the filter-pressing water bag filter tank is communicated with a physicochemical precipitation water-out PH adjusting tank through a circulating pipeline.
Compared with the prior art, the utility model has the beneficial effects that:
1. the equipment can stably treat hexavalent chromium to be less than 0.1ppm through resin adsorption treatment, and the treated wastewater can reach the A-level standard discharge of GB/T31962-2015 Water quality Standard for wastewater discharge into towns and towns, thereby meeting the requirement of environmental protection.
2. The physicochemical precipitation reaction tank is provided with three layers of stirring impellers in the middle, the bottom is a conical bottom, and the wall of the conical bottom is provided with the perforated aeration pipeline, so that the wastewater can form a rolling state in a stirring and perforated aeration mode, hexavalent chromium in the wastewater can fully react with sodium metabisulfite in a short time, the hexavalent chromium is converted into trivalent chromium to be precipitated into sludge, and the aim of efficiently removing the hexavalent chromium is fulfilled.
3. The utility model has high automation degree, each waste water storage tank and each medicament storage tank are automatically controlled by a liquid level controller, the perforating aeration is automatically controlled by an electromagnetic valve, the medicament addition PH adjustment is controlled by a PH controller, the equipment can fully automatically operate after one-key starting, and the utility model has stable performance and simple operation and maintenance.
Drawings
FIG. 1 is a schematic process flow diagram of the apparatus of the present invention.
In the figure: 1. a hexavalent chromium waste water raw water storage tank; 2. a physical and chemical precipitation reaction tank; 3. a screw air compressor; 4. a compressed air storage tank; 5. an electromagnetic valve; 6. a physical and chemical reaction pH controller; 7. a 25% hydrochloric acid storage tank; 8. a 30% sodium metabisulfite storage tank; 9. a 50% liquid caustic soda storage tank; 10. 10% PAC storage tank; 11. a 0.2% PAM storage tank; 12. filtering the precipitate to obtain a water bag; 13. a pH controller for the physicochemical precipitation effluent; 14. the physicochemical precipitation effluent PH adjusting tank; 15. transferring the materialized precipitate out of water into a tank; 16. an activated carbon filter tank; 17. filtering the hexavalent chromium resin in a water bag; 18. a hexavalent chromium adsorption resin tank A; 19. a hexavalent chromium adsorption resin tank B; 20. a hexavalent chromium adsorption resin tank C; 21. a pH controller for effluent of the hexavalent chromium adsorption resin tank; 22. a muddy water storage tank; 23. a plate-and-frame filter press; 24. filtering out water by pressure and transferring to a tank; 25. pressing to obtain a water bag filtering can; 26. and (5) transferring the hexavalent chromium adsorption resin tank from the discharged water to a tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
Referring to fig. 1, the present invention provides a technical solution: a hexavalent chromium waste water high-efficiency treatment device comprises a hexavalent chromium waste water raw water storage tank 1, a physical and chemical precipitation reaction tank 2, a feeding storage tank mechanism, a physical and chemical precipitation water-outlet bag filter tank 12, a physical and chemical precipitation water-outlet PH adjusting tank 14, a physical and chemical precipitation water-outlet transfer tank 15, an activated carbon filter tank 16, a hexavalent chromium resin water-inlet bag filter tank 17 and a resin tank set, wherein the hexavalent chromium waste water raw water storage tank 1 is communicated with an external waste water outlet and used for storing waste water, a liquid level sensor for controlling the high and low liquid levels in the storage tank is arranged in the hexavalent chromium waste water raw water storage tank 1, and the hexavalent chromium waste water raw water storage tank 1 is communicated with the physical and chemical precipitation reaction tank 2 through a centrifugal pump and a water conveying pipeline; the middle part of the inner side of the physical and chemical precipitation reaction tank 2 is provided with three layers of stirring impellers, the bottom of the physical and chemical precipitation reaction tank 2 is a conical bottom, the conical bottom wall of the physical and chemical precipitation reaction tank is provided with a perforated aeration pipeline, and a liquid level sensor capable of automatically controlling the liquid level in the storage tank is arranged in the physical and chemical precipitation reaction tank 2; when the hexavalent chromium wastewater is subjected to physical and chemical precipitation reaction, stirring is started and perforation aeration is started, the stirring and perforation aeration mode can enable the wastewater to form a rolling state, and hexavalent chromium in the wastewater can fully react with sodium metabisulfite in a short time. Adding 25% hydrochloric acid or 50% liquid alkali to regulate pH3-6, adding sodium pyrosulfite, stirring for 30 min, and reducing hexavalent chromium to trivalent chromium. Adding liquid alkali to adjust and control the pH value of 10-11, adding a certain amount of 10% PAC, stirring for 5 minutes, adding a certain amount of 0.2% PAM, stirring for 3 minutes, and flocculating and precipitating to form large-particle alum floc precipitate. Then the stirring and the aeration are closed, and the mixture is kept stand and layered for 30 minutes. And then, discharging the muddy water from the cone bottom of the physical and chemical precipitation reaction tank to a muddy water storage tank, and then discharging the supernatant to a physical and chemical precipitation effluent pH adjusting tank through a physical and chemical precipitation effluent filter tank. Through physical and chemical precipitation, the hexavalent chromium in the wastewater can be reduced to below 1 mg/L.
In the embodiment, a perforated aeration pipeline is connected to the bottom side of the physical and chemical precipitation reaction tank 2, the perforated aeration pipeline is communicated with a compressed air storage tank 4, the compressed air storage tank 4 is connected with a screw air compressor 3, compressed air is generated by the screw air compressor 3, and an electromagnetic valve 5 is arranged on the perforated aeration pipe; the physical and chemical precipitation reaction tank 2 is also internally provided with a physical and chemical reaction PH controller 6 for detecting the PH value of the wastewater and controlling the PH value of the physical and chemical reaction of the wastewater in the physical and chemical precipitation reaction tank 2, and the physical and chemical precipitation reaction tank 2 is connected with a feeding storage tank mechanism.
In this embodiment, all be equipped with the liquid level inductor that is used for controlling its height liquid level in the reinforced storage tank mechanism, reinforced storage tank mechanism includes 25% hydrochloric acid storage tank 7, 30% sodium metabisulfite storage tank 8, 50% liquid caustic soda storage tank 9, 10% PAC storage tank 10 and 0.2% PAM storage tank 11.
In this embodiment, the physical precipitation reaction tank 2 has a physical precipitation water outlet and a precipitation mud water outlet, the physical precipitation water outlet and the precipitation mud water outlet are respectively communicated with the physical precipitation water-outlet bag filter tank 12 and the mud water storage tank 22 through pipelines, and the interior of the physical precipitation water-outlet bag filter tank 12 is provided with a 1um filter bag for filtering suspended matters in the physical precipitation water; the filtering tank 12 of the materialized precipitation water bag is communicated with a materialized precipitation water pH adjusting tank 14, a materialized precipitation water pH controller 13 is arranged on the materialized precipitation water pH adjusting tank 14, and a trace amount of 25% hydrochloric acid or 50% liquid alkali is added into the materialized precipitation water pH adjusting tank 14 and is used for adjusting and controlling the pH of the materialized precipitation water to 6-9.
In the embodiment, the physicochemical precipitation effluent PH regulation tank 14 is communicated with a physicochemical precipitation effluent rotary tank 15 through a pipeline, the physicochemical precipitation effluent rotary tank 15 is used for transferring physicochemical precipitation effluent, and a liquid level sensor for controlling the high and low liquid levels in the storage tank is arranged in the physicochemical precipitation effluent rotary tank 15; the activated carbon filter tank 16 is communicated with the materialized precipitation water outlet transfer tank 15 through a centrifugal pump and a pipeline, the activated carbon filter tank 16 filters transferred wastewater by using activated carbon, and the activated carbon filter tank 16 is communicated with a hexavalent chromium resin water inlet bag filter tank 17; the hexavalent chromium resin water inlet bag filtering tank 17 is internally provided with a filtering bag of 0.5um and is used for filtering the waste water again to remove suspended matters in the waste water.
In this embodiment, the hexavalent chromium resin water inlet bag canister 17 is connected with a resin tank group, the resin tank group includes a hexavalent chromium adsorption resin tank a18, a hexavalent chromium adsorption resin tank B19, and a hexavalent chromium adsorption resin tank C20 which are sequentially connected in series from left to right, the wastewater subjected to adsorption treatment by the resin tank group is transferred to the hexavalent chromium adsorption resin tank effluent PH control tank 26 through a discharge pipeline for transfer discharge, and the discharge pipeline is provided with a hexavalent chromium adsorption resin tank effluent PH controller 21 for detecting the effluent PH after resin adsorption. The resin tank group has large absorption capacity to hexavalent chromium, each liter of resin can absorb more than 50 grams of hexavalent chromium, and the hexavalent chromium in the wastewater can be stably absorbed and treated to be below 0.1mg/L, which can reach the index that the A-level standard hexavalent chromium of GB/T31962-2015 Water quality Standard for wastewater discharge to cities and towns is less than or equal to 0.5 mg/L. Whether the resin is saturated or not can be judged according to the PH of the resin effluent, and when the PH of the resin effluent is less than 6, the resin is basically saturated. After the resin is adsorbed and saturated, the resin can be regenerated by liquid caustic soda with a certain concentration, the regenerated wastewater returns to the hexavalent chromium wastewater raw water storage tank for retreatment, and the regenerated resin can be repeatedly used.
In the embodiment, the slurry storage tank 22 is communicated with a plate-and-frame filter press 23, the plate-and-frame filter press 23 is used for performing filter pressing and solid-liquid separation on slurry, and filter pressing effluent is discharged to a pressure filtration water recycling tank 24; the press filtration water in-water transfer tank 24 is used for transferring the water discharged from the press filter, and a liquid level sensor for automatically controlling the high and low liquid levels in the storage tank is arranged in the press filtration water in-water transfer tank 24; the pressure filtration water in-water rotary tank 24 is communicated with a pressure filtration water bag filter tank 25, a 1um filter bag for filtering suspended matters in the pressure filtration water is arranged in the pressure filtration water bag filter tank 25, and the pressure filtration water bag filter tank 25 is communicated with the physicochemical precipitation water outlet PH adjusting tank 14 through a circulating pipeline.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The hexavalent chromium waste water high-efficiency treatment equipment is characterized by comprising a hexavalent chromium waste water raw water storage tank (1), a physical and chemical precipitation reaction tank (2), a feeding storage tank mechanism, a physical and chemical precipitation water-outlet bag filter tank (12), a physical and chemical precipitation water-outlet PH adjusting tank (14), a physical and chemical precipitation water-outlet transfer tank (15), an activated carbon filter tank (16), a hexavalent chromium resin water-inlet bag filter tank (17) and a resin tank set, wherein the hexavalent chromium waste water raw water storage tank (1) is communicated with an external waste water outlet and used for storing waste water, a liquid level sensor for controlling the height liquid level in the storage tank is arranged in the hexavalent chromium waste water raw water storage tank (1), and the hexavalent chromium waste water raw water storage tank (1) is communicated with the physical and chemical precipitation reaction tank (2) through a centrifugal pump and a water conveying pipeline; the middle part of the inner side of the physical and chemical precipitation reaction tank (2) is provided with three layers of stirring impellers, the bottom of the physical and chemical precipitation reaction tank (2) is a conical bottom, the conical bottom wall of the physical and chemical precipitation reaction tank is provided with a perforated aeration pipeline, and a liquid level sensor capable of automatically controlling the liquid level in the storage tank is arranged in the physical and chemical precipitation reaction tank (2); a perforated aeration pipeline is connected to the bottom side of the materialization precipitation reaction tank (2), the perforated aeration pipeline is communicated with a compressed air storage tank (4), and an electromagnetic valve (5) is arranged on a perforated aeration pipe; the physical and chemical precipitation reaction tank (2) is also internally provided with a physical and chemical reaction PH controller (6) for detecting the PH value of the wastewater and controlling the PH of the physical and chemical reaction of the wastewater in the physical and chemical precipitation reaction tank (2), and the physical and chemical precipitation reaction tank (2) is connected with a charging storage tank mechanism.
2. The high-efficiency hexavalent chromium wastewater treatment equipment according to claim 1, wherein: all be equipped with the liquid level inductor who is used for controlling its height liquid level in the reinforced storage tank mechanism, reinforced storage tank mechanism includes 25% hydrochloric acid storage tank (7), 30% sodium metabisulfite storage tank (8), 50% liquid caustic soda storage tank (9), 10% PAC storage tank (10) and 0.2% PAM storage tank (11).
3. The high-efficiency hexavalent chromium wastewater treatment equipment according to claim 1, wherein: the physical and chemical precipitation reaction tank (2) is provided with a physical and chemical precipitation water outlet and a precipitation mud water outlet, the physical and chemical precipitation water outlet and the precipitation mud water outlet are respectively communicated with a physical and chemical precipitation water outlet bag filtering tank (12) and a mud water storage tank (22) through pipelines, and a 1um filtering bag for filtering suspended matters in the physical and chemical precipitation water outlet bag filtering tank (12) is arranged inside; the filtering tank (12) of the materialized precipitation water outlet bag is communicated with a materialized precipitation water outlet pH adjusting tank (14), the materialized precipitation water outlet pH adjusting tank (14) is provided with a materialized precipitation water outlet pH controller (13), and a trace amount of 25% hydrochloric acid or 50% liquid caustic soda is added into the materialized precipitation water outlet pH adjusting tank (14) and is used for adjusting and controlling the pH of the materialized precipitation water outlet to 6-9.
4. The high-efficiency hexavalent chromium wastewater treatment equipment according to claim 3, wherein: the physicochemical precipitation effluent PH adjusting tank (14) is communicated with a physicochemical precipitation effluent rotary tank (15) through a pipeline, the physicochemical precipitation effluent rotary tank (15) is used for transferring physicochemical precipitation effluent, and a liquid level sensor for controlling the high and low liquid levels in the storage tank is arranged in the physicochemical precipitation effluent rotary tank (15); the activated carbon filter tank (16) is communicated with the materialized precipitation water outlet rotary tank (15) through a centrifugal pump and a pipeline, the activated carbon filter tank (16) filters the transferred wastewater by adopting activated carbon, and the activated carbon filter tank (16) is communicated with a hexavalent chromium resin water inlet bag filter tank (17); the hexavalent chromium resin water-feeding bag filtering tank (17) is internally provided with a 0.5um filtering bag for filtering the wastewater again to remove suspended matters in the wastewater.
5. The hexavalent chromium wastewater high-efficiency treatment equipment according to claim 4, wherein: hexavalent chromium resin advances water bag straining jar (17) switch-on and has resin tank group, and resin tank group includes hexavalent chromium adsorption resin jar A (18), hexavalent chromium adsorption resin jar B (19), hexavalent chromium adsorption resin jar C (20) that from left to right in proper order the series connection leads to, and waste water after resin tank group adsorption treatment passes through the routing pipeline and goes out aquatic rotary tank (26) to carry out the transfer and discharge to hexavalent chromium adsorption resin jar, is equipped with hexavalent chromium adsorption resin jar that is used for detecting the resin and adsorbs back play water PH on the routing pipeline and goes out water PH controller (21).
6. The high-efficiency hexavalent chromium wastewater treatment equipment according to claim 3, wherein: the mud water storage tank (22) is communicated with a plate-and-frame filter press (23), the plate-and-frame filter press (23) is used for carrying out filter pressing on mud water, carrying out solid-liquid separation, discharging filter pressing effluent to a press filtering water recycling tank (24); the press filtration water in-water transfer tank (24) is used for transferring the water discharged by the press filter, and a liquid level sensor for automatically controlling the high and low liquid levels in the storage tank is arranged in the press filtration water in-water transfer tank (24); press and filter off aquatic rotary tank (24) and connect and press and filter off water bag filter flask (25), press and filter off that 1um filter bag that is used for filtering press and filters off the suspended solid in aquatic is equipped with in water bag filter flask (25), press and filter off water bag filter flask (25) and connect materialization through circulating line and deposit out water PH and adjust jar (14).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122632219.1U CN216662732U (en) | 2021-10-30 | 2021-10-30 | Hexavalent chromium waste water high-efficiency processing equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122632219.1U CN216662732U (en) | 2021-10-30 | 2021-10-30 | Hexavalent chromium waste water high-efficiency processing equipment |
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| CN216662732U true CN216662732U (en) | 2022-06-03 |
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| CN202122632219.1U Active CN216662732U (en) | 2021-10-30 | 2021-10-30 | Hexavalent chromium waste water high-efficiency processing equipment |
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