CN115477447A - Method and device for enhancing detoxification and efficiency improvement of azo dye wastewater through hydrolytic acidification coupling - Google Patents
Method and device for enhancing detoxification and efficiency improvement of azo dye wastewater through hydrolytic acidification coupling Download PDFInfo
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- CN115477447A CN115477447A CN202211235987.6A CN202211235987A CN115477447A CN 115477447 A CN115477447 A CN 115477447A CN 202211235987 A CN202211235987 A CN 202211235987A CN 115477447 A CN115477447 A CN 115477447A
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- 230000020477 pH reduction Effects 0.000 title claims abstract description 93
- 239000000987 azo dye Substances 0.000 title claims abstract description 91
- 239000002351 wastewater Substances 0.000 title claims abstract description 86
- 230000003301 hydrolyzing effect Effects 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000001784 detoxification Methods 0.000 title claims abstract description 34
- 230000008878 coupling Effects 0.000 title claims abstract description 21
- 238000010168 coupling process Methods 0.000 title claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 21
- 230000002708 enhancing effect Effects 0.000 title claims description 15
- 230000006872 improvement Effects 0.000 title description 2
- 230000007062 hydrolysis Effects 0.000 claims abstract description 38
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 38
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
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- 238000005728 strengthening Methods 0.000 claims abstract description 6
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- 230000007246 mechanism Effects 0.000 claims description 18
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention provides a method and a device for strengthening the detoxification and synergism of azo dye wastewater by hydrolytic acidification coupling, wherein the detoxification and synergism method comprises the following steps: arranging hydrolytic acidification bacteria in the hydrolytic acidification reactor; enabling the azo dye wastewater to flow into a hydrolysis acidification reactor, and starting hydrolysis acidification reaction; and meanwhile, starting an electrolysis device to electrolyze the azo dye wastewater in the hydrolysis acidification reactor. According to the method, toxic substances or inhibitory substances in the azo dye wastewater are removed through a hydrolytic acidification process, meanwhile, the azo dye wastewater in the hydrolytic acidification reactor is electrolyzed by using an electrolysis device, electrolysis and hydrolytic acidification are simultaneously carried out, the microbial reduction effect is promoted, the quick ring opening of the azo dye is realized, the detoxification effect on the azo dye wastewater is enhanced, and after a refractory organic matter structure is converted into an easily degradable structure in the hydrolytic acidification process, the electrolysis time can be effectively shortened, the detoxification efficiency is improved, and the purpose of saving the cost is achieved.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a method and a device for strengthening the detoxification and synergism of azo dye wastewater by hydrolytic acidification coupling.
Background
Azo dye wastewater is common printing and dyeing wastewater, and seriously harms the natural environment due to the characteristics of high organic matter concentration, complex components, more difficultly-degradable substances, large chromaticity, toxicity and the like.
In order to treat the azo dye wastewater, the invention with the authorization notice number of CN107082485B discloses a method for removing azo dye mixed polluted wastewater by using a bioelectrochemical reactor system, which comprises the following steps: 1. building a bioelectrochemical reactor system; 2. culturing and domesticating sludge of the bioelectrochemical reactor system; 3. operation of the bioelectrochemical reactor system. The removal rates of COD, inorganic nitrogen and azo dyes in the effluent of the reactor can respectively reach 89%, 75% and 92%, mixed polluted wastewater containing the azo dyes can be effectively removed, and the method can be used in sewage treatment engineering. However, the method has long electrolysis time, needs to consume a large amount of energy, has high cost, and has low treatment efficiency of the azo dye wastewater because the hydrolysis acidification process and the electrolysis process of the azo dye wastewater are independently carried out.
Disclosure of Invention
The invention provides a method and a device for strengthening the detoxification and synergism of azo dye wastewater by hydrolytic acidification coupling, which are used for solving the technical problems that the conventional azo dye wastewater treatment process is long in electrolysis time, needs to consume a large amount of energy, is high in cost, and is low in azo dye wastewater treatment efficiency because the hydrolytic acidification process and the electrolysis process of the azo dye wastewater are carried out independently.
In order to solve the technical problem, the invention discloses a method and a device for strengthening the detoxification and synergism of azo dye wastewater by hydrolytic acidification coupling, which comprises the following steps:
step 1: arranging hydrolytic acidification bacteria in a hydrolytic acidification reactor;
step 2: enabling the azo dye wastewater to flow into a hydrolysis acidification reactor, and starting hydrolysis acidification reaction;
and step 3: and meanwhile, starting an electrolysis device to electrolyze the azo dye wastewater in the hydrolysis acidification reactor.
Preferably, in the step 2, the temperature of the azo dye wastewater in the hydrolysis acidification reactor is 25-35 ℃.
Preferably, in the step 3, after electrolyzing for a preset time period, the ultraviolet generator is started, the azo dye wastewater in the hydrolysis acidification reactor is irradiated by the ultraviolet lamp, and sodium sulfite is added into the hydrolysis acidification reactor.
The utility model provides an azo dye waste water detoxification increase device is reinforceed in hydrolytic acidification coupling, adopts foretell azo dye waste water detoxification increase method to carry out azo dye waste water detoxification, including hydrolytic acidification reactor, hydrolytic acidification reactor includes the casing, casing left side wall sets up feed inlet and water inlet respectively, casing right side wall sets up the outlet, the casing bottom sets up the supporting leg, casing bottom outer wall central point puts and sets up agitator motor, the agitator motor upper end with casing diapire fixed connection, the agitator motor output sets up the (mixing) shaft, run through the (mixing) shaft upper end the casing diapire extends to inside the casing, the (mixing) shaft with casing diapire sealed rotation is connected, the (mixing) shaft outer wall sets up a plurality of stirring vane, the fixed screw rod that sets up in (mixing) shaft upper end.
Preferably, the upper end of the shell is provided with a cover plate, the cover plate is detachably connected with the upper end of the shell, the lower surface of the cover plate is provided with a plurality of ultraviolet lamps, the upper surface of the cover plate is provided with an ultraviolet generator, and the ultraviolet lamps are electrically connected with the ultraviolet generator.
Preferably, the outer wall of the shell is provided with an electrolysis device, an anode and a cathode are arranged in the shell, and the anode and the cathode are respectively electrically connected with the electrolysis device.
Preferably, set up the fixed plate in the casing, both ends respectively with casing left and right sides inner wall fixed connection about the fixed plate, the fixed plate top sets up first motor, first motor rear end with casing rear side inner wall fixed connection, first motor output sets up first pivot, the fixed rolling disc that sets up in first pivot front end, rolling disc the place ahead sets up the rectangle frame, rectangle frame lower extreme sets up the slip post, the slip post lower extreme runs through the fixed plate and with fixed plate sliding connection, slide in the rectangle frame and set up the dwang, the dwang rear end rotates with the rolling disc off-centre position to be connected, the fixed horizontal pole that sets up of both ends symmetry about the rectangle frame, the horizontal pole lower extreme is fixed to set up the connecting rod, the connecting rod lower extreme run through the fixed plate and with fixed plate run through position sliding connection, left connecting rod lower extreme and positive pole upper end fixed connection, the connecting rod lower extreme and the negative pole upper end fixed connection on right side.
Preferably, the rotating rod slides left and right along the inner wall of the rectangular frame.
Preferably, a rotary drum is sleeved outside the connecting rod, the upper end of the rotary drum is rotatably connected with the lower surface of the fixing plate, and a plurality of bristles are arranged on the inner wall of the rotary drum.
Preferably, a rotating mechanism is disposed in the housing, the rotating mechanism is used for controlling the rotation of the drum, and the rotating mechanism includes:
the gear column is fixedly sleeved on the outer wall of the rotary drum;
the spline housing is fixedly arranged at the upper end of the screw rod, a spline shaft is arranged in the spline housing in a sliding mode, the spline shaft slides up and down along the inner wall of the spline housing, and the upper end of the spline shaft is rotationally connected with the lower end of the sliding column;
the first gear, the fixed cover of first gear is established at the integral key shaft outer wall, first gear is located between two gear posts, first gear and gear post meshing.
The technical scheme of the invention has the following advantages: the invention provides a method and a device for strengthening the detoxification and synergism of azo dye wastewater by hydrolytic acidification coupling, wherein the detoxification and synergism method comprises the following steps: arranging hydrolytic acidification bacteria in a hydrolytic acidification reactor; enabling the azo dye wastewater to flow into a hydrolysis acidification reactor, and starting hydrolysis acidification reaction; and meanwhile, starting an electrolysis device to electrolyze the azo dye wastewater in the hydrolysis acidification reactor. According to the method, toxic substances or inhibitory substances in the azo dye wastewater are removed through a hydrolytic acidification process, meanwhile, the azo dye wastewater in the hydrolytic acidification reactor is electrolyzed by using an electrolysis device, electrolysis and hydrolytic acidification are simultaneously carried out, the microbial reduction effect is promoted, the quick ring opening of the azo dye is realized, the detoxification effect on the azo dye wastewater is enhanced, and after a refractory organic matter structure is converted into an easily degradable structure in the hydrolytic acidification process, the electrolysis time can be effectively shortened, the detoxification efficiency is improved, and the purpose of saving the cost is achieved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the apparatus particularly pointed out in the written description and drawings hereof.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of steps of a method for enhancing the detoxification and synergism of azo dye wastewater by coupling hydrolytic acidification;
FIG. 2 is a schematic diagram of the overall structure of a device for enhancing the detoxification and efficiency enhancement of azo dye wastewater by hydrolytic acidification coupling according to the present invention;
FIG. 3 is an enlarged view taken at A of FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of the invention at B of FIG. 2;
FIG. 5 is an enlarged view of FIG. 2 at C;
fig. 6 is a partial cross-sectional view taken at D-D of fig. 5 in accordance with the present invention.
In the figure: 1. a housing; 2. a feed inlet; 3. a water inlet; 4. a water outlet; 5. supporting legs; 6. a stirring motor; 7. a stirring shaft; 8. a screw; 9. a cover plate; 10. an ultraviolet lamp; 11. an ultraviolet ray generator; 12. an electrolysis device; 13. an anode; 14. a cathode; 15. a fixing plate; 16. a first motor; 17. a first rotating shaft; 18. rotating the disc; 19. a rectangular frame; 20. a sliding post; 21. rotating the rod; 22. a cross bar; 23. a connecting rod; 24. a rotating drum; 25. brushing; 26. a gear post; 27. a spline housing; 28. a spline shaft; 29. a first gear; 30. a sleeve; 31. a sliding plate; 32. a triangular groove; 33. a mounting cavity; 34. a first push rod; 35. a triangular block; 36. a compression plate; 37. a first spring; 38. a squeegee; 39. an L-shaped plate; 40. a limiting plate; 41. a baffle plate; 42. a second spring; 43. a second push rod; 44. and (4) a roller.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
Example 1:
the embodiment of the invention provides a method for enhancing the detoxification and synergism of azo dye wastewater by coupling hydrolysis and acidification, which comprises the following steps as shown in figures 1-6:
step 1: arranging hydrolytic acidification bacteria in the hydrolytic acidification reactor;
and 2, step: enabling the azo dye wastewater to flow into a hydrolysis acidification reactor, and starting hydrolysis acidification reaction;
and 3, step 3: meanwhile, the electrolysis device 12 is started to electrolyze the azo dye wastewater in the hydrolysis acidification reactor.
The working principle and the beneficial effects of the technical scheme are as follows: firstly arranging hydrolytic acidification bacteria in a hydrolytic acidification reactor, and adding efficient decolorizing microorganisms for decolorizing azo dye wastewater, then enabling the azo dye wastewater to flow into the hydrolytic acidification reactor to start hydrolytic acidification reaction, and simultaneously starting an electrolysis device 12 to electrolyze the azo dye wastewater in the hydrolytic acidification reactor, the scheme removes toxic substances or inhibitory substances in the azo dye wastewater through a hydrolytic acidification process, and simultaneously, electrolyzing the azo dye wastewater in the hydrolytic acidification reactor by using the electrolysis device 12, and simultaneously performing electrolysis and hydrolytic acidification to promote a microbial reduction effect, thereby realizing rapid ring opening of azo dyes, enhancing the effect on azo dye wastewater, effectively shortening the detoxification electrolysis time after converting a non-degradable organic structure into an easily degradable structure in the hydrolytic acidification process, improving the detoxification efficiency, having high organic removal rate in the hydrolytic acidification process, further enhancing the organic removal effect under the promotion of the electrolysis device 12, having the advantage of low cost, and achieving the purpose of saving cost.
Example 2
On the basis of the above example 1, in the step 2, the temperature of the azo dye wastewater in the hydrolysis acidification reactor is 25 ℃ to 35 ℃.
The working principle and the beneficial effects of the technical scheme are as follows: the temperature of the azo dye wastewater is controlled to be 25-35 ℃, and a proper treatment environment is provided for microorganisms in the hydrolysis acidification reactor, so that the hydrolysis acidification efficiency is improved, and the detoxification effect is enhanced.
Example 3
On the basis of example 1 or 2, in the step 3, after electrolysis is carried out for a preset time, the ultraviolet ray generator 11 is started, the azo dye wastewater in the hydrolysis acidification reactor is irradiated by the ultraviolet ray lamp 10, and sodium sulfite is added into the hydrolysis acidification reactor.
The working principle and the beneficial effects of the technical scheme are as follows: the electrolysis device 12 is used for electrolyzing for 3 hours in preset time, sodium sulfite is added into the hydrolysis acidification reactor after the electrolysis is carried out for the preset time, the ultraviolet generator 11 is started simultaneously, and the ultraviolet lamp 10 is used for irradiating the azo dye wastewater, so that the azo dye wastewater after hydrolysis acidification and electrolysis is degraded, organic matters which are not eliminated after hydrolysis acidification reaction and electrolysis are removed, the sodium sulfite is used as a reducing agent, the degradation rate is improved, and the detoxification effect is further enhanced.
Example 4
On the basis of any one of embodiments 1 to 3, as shown in fig. 2 to 6, the invention further provides a hydrolysis acidification coupling enhanced azo dye wastewater detoxification synergistic device, which performs azo dye wastewater detoxification by using the hydrolysis acidification coupling enhanced azo dye wastewater detoxification synergistic method, and comprises a hydrolysis acidification reactor, wherein the hydrolysis acidification reactor comprises a shell 1, the left side wall of the shell 1 is respectively provided with a feed inlet 2 and a water inlet 3, the right side wall of the shell 1 is provided with a drain outlet 4, the bottom of the shell 1 is provided with a support leg 5, the center of the bottom outer wall of the shell 1 is provided with a stirring motor 6, the upper end of the stirring motor 6 is fixedly connected with the bottom wall of the shell 1, the output end of the stirring motor 6 is provided with a stirring shaft 7, the upper end of the stirring shaft 7 penetrates through the bottom wall of the shell 1 and extends into the shell 1, the stirring shaft 7 is in sealed and rotary connection with the bottom wall of the shell 1, the outer wall of the stirring shaft 7 is provided with a plurality of stirring blades, and the upper end of the stirring shaft 7 is fixedly provided with a screw 8.
The working principle and the beneficial effects of the technical scheme are as follows: hydrolytic acidification reactor includes casing 1, 1 lateral wall of casing sets up feed inlet 2 respectively, water inlet 3 and outlet 4, can add azo dyes waste water in to casing 1 through water inlet 3, then add hydrolytic acidification fungus and other azo dyes waste water for the treatment microorganism in to casing 1 through feed inlet 2, then, start agitator motor 6, 6 work drive (mixing) shaft 7 and screw rod 8 of agitator motor rotate, stirring shaft 7 drives stirring vane at 1 internal rotation of casing, thereby stir the azo dyes waste water in the casing 1, azo dyes waste water and hydrolytic acidification fungus fully contact reaction, make azo dyes molecule open loop with higher speed, the hydrolytic acidification efficiency of azo dyes waste water has been improved, the reinforcing detoxification effect.
Example 5
On the basis of embodiment 4, as shown in fig. 2, a cover plate 9 is arranged at the upper end of the shell 1, the cover plate 9 is detachably connected with the upper end of the shell 1, a plurality of ultraviolet lamps 10 are arranged on the lower surface of the cover plate 9, an ultraviolet generator 11 is arranged on the upper surface of the cover plate 9, and the ultraviolet lamps 10 are electrically connected with the ultraviolet generator 11.
The working principle and the beneficial effects of the technical scheme are as follows: set up ultraviolet generator 11 on the apron 9, ultraviolet generator 11 control ultraviolet lamp 10 opens to shine to the azo-dye waste water in the casing 1, eliminate the organic matter in the azo-dye waste water.
Example 6
In example 4, as shown in fig. 2, an electrolyzer 12 is disposed on the outer wall of the housing 1, an anode 13 and a cathode 14 are disposed in the housing 1, and the anode 13 and the cathode 14 are electrically connected to the electrolyzer 12, respectively.
The working principle and the beneficial effects of the technical scheme are as follows: the electrolysis device 12 electrolyzes the azo dye wastewater in the housing 1 through the anode 13 and the cathode 14, thereby promoting hydrolytic acidification efficiency and improving removal rate of azo dye molecules.
Example 7
On the basis of embodiment 6, as shown in fig. 2 and 3, a fixing plate 15 is arranged in the housing 1, the left and right ends of the fixing plate 15 are fixedly connected with the inner walls of the left and right sides of the housing 1 respectively, a first motor 16 is arranged above the fixing plate 15, the rear end of the first motor 16 is fixedly connected with the inner wall of the rear side of the housing 1, the output end of the first motor 16 is provided with a first rotating shaft 17, the front end of the first rotating shaft 17 is fixedly provided with a rotating disc 18, a rectangular frame 19 is arranged in front of the rotating disc 18, the lower end of the rectangular frame 19 is provided with a sliding column 20, the lower end of the sliding column 20 penetrates through the fixing plate 15 and is slidably connected with the fixing plate 15, a rotating rod 21 is slidably arranged in the rectangular frame 19, the rear end of the rotating rod 21 is rotatably connected with the rotating disc 18 at an eccentric position, the left and right ends of the rectangular frame 19 are symmetrically and fixedly provided with cross rods 22, the lower ends of the cross rods 22 are fixedly provided with connecting rods 23, the lower ends of the cross rods 23, the connecting rods 23 penetrate through the fixing plate 15 and are slidably connected with the fixing plate 15, the lower end of the connecting rod 23 on the left side is fixedly connected with the upper end of the anode 13, and the lower end of the cathode 14;
the rotating rod 21 slides left and right along the inner wall of the rectangular frame 19.
The working principle and the beneficial effects of the technical scheme are as follows: when the azo dye wastewater is electrolyzed, the electrolysis device 12 is started, the anode 13 and the cathode 14 respectively start to work, meanwhile, the first motor 16 is started, the first motor 16 rotates to drive the first rotating shaft 17 to rotate, the first rotating shaft 17 rotates to drive the rotating disc 18 to rotate, the rotating disc 18 rotates to drive the rotating rod 21 to rotate by taking the first rotating shaft 17 as a circle center, the rotating rod 21 is perpendicular to the rotating disc 18, the rotating rod 21 slides left and right along the inner wall of the rectangular frame 19 when moving, so that the rectangular frame 19 is driven to reciprocate up and down above the fixed plate 15, the sliding column 20 slides up and down in the fixed plate 15, meanwhile, the rectangular frame 19 drives the transverse rod 22 to reciprocate up and down, the transverse rod 22 drives the connecting rods 23 to slide up and down in the fixed plate 15, the two connecting rods 23 respectively drive the anode 13 and the cathode 14 to reciprocate up and down in the azo dye wastewater, compared with the traditional fixed arrangement of the anode 13 and the cathode 14, the vertical reciprocating movement of the anode 13 and the cathode 14 can enlarge the contact range of the azo dye wastewater close to the fixed plate 15, the azo dye wastewater can be electrolyzed, the electrolysis wastewater can be further shortened, and the electrolysis cost is further reduced.
Example 8
On the basis of the embodiment 7, as shown in fig. 2-4, a rotating cylinder 24 is sleeved outside the connecting rod 23, the upper end of the rotating cylinder 24 is rotatably connected with the lower surface of the fixing plate 15, and a plurality of bristles 25 are arranged on the inner wall of the rotating cylinder 24.
The working principle and the beneficial effects of the technical scheme are as follows: when the connecting rod 23 reciprocates up and down, the anode 13 and the cathode 14 reciprocate up and down in the rotary drum 24 respectively, the bristles 25 can be in contact with the outer walls of the anode 13 and the cathode 14 in the rotary drum 24, so that the outer walls of the anode 13 and the cathode 14 are cleaned, attachments attached to the outer walls of the anode 13 and the cathode 14 in the electrolysis process are eliminated, the anode 13 and the cathode 14 are ensured to be in full contact with azo dye wastewater, the reaction rate of the anode 13 and the cathode 14 cannot be reduced, the outer walls of the anode 13 and the cathode 14 are automatically cleaned, and the service lives of the anode 13 and the cathode 14 are prolonged.
Example 9
On the basis of embodiment 8, as shown in fig. 2 to 4, a rotating mechanism is provided in the housing 1, and the rotating mechanism is used for controlling the rotation of the drum 24, and the rotating mechanism includes:
the gear column 26 is fixedly sleeved on the outer wall of the rotary drum 24;
the spline housing 27 is fixedly arranged at the upper end of the screw 8, a spline shaft 28 is arranged in the spline housing 27 in a sliding manner, the spline shaft 28 slides up and down along the inner wall of the spline housing 27, and the upper end of the spline shaft 28 is rotationally connected with the lower end of the sliding column 20;
a first gear 29, wherein the first gear 29 is fixedly sleeved on the outer wall of the spline shaft 28, the first gear 29 is positioned between the two gear columns 26, and the first gear 29 is meshed with the gear columns 26.
The working principle and the beneficial effects of the technical scheme are as follows: when the stirring shaft 7 stirs, the stirring shaft 7 drives the screw rod 8 to rotate, the screw rod 8 drives the spline sleeve 27 to rotate, the inner wall of the spline sleeve 27 is matched with the outer wall of the spline shaft 28, the spline shaft 28 can rotate along with the spline sleeve 27 while reciprocating up and down along with the sliding column 20, the spline shaft 28 rotates to drive the first gear 29 to rotate, the first gear 29 rotates to drive the gear columns 26 on two sides to rotate, the gear columns 26 rotate to drive the rotary drum 24 to rotate, the rotary drum 24 rotates to drive the bristles 25 on the inner wall of the rotary drum 24 to rotate, the bristles 25 can clean the outer walls of the anode 13 and the cathode 14 when rotating, the rotating bristles 25 are used for cleaning up and down in a single sliding mode, the cleaning effect can be improved, attachments on the outer walls of the anode 13 and the cathode 14 are reduced as much as possible, the attachments on the outer walls of the anode 13 and the cathode 14 are reduced, the reaction rate of the anode 13 and the cathode 14 is fully ensured, the electrolysis effect is enhanced, the outer walls of the anode 13 and the cathode 14 are not needed to be cleaned up manually, the labor intensity of workers is reduced, and the automation degree of the device is improved.
Example 10
On the basis of any one of embodiments 4 to 9, as shown in fig. 2 and 5, a stirring mechanism is further disposed in the housing 1, and the stirring mechanism includes:
the sleeve 30 is sleeved outside the screw 8, the upper end of the sleeve 30 is in threaded transmission connection with the screw 8, the lower end of the sleeve 30 is communicated with the inside of the shell 1, through holes are symmetrically formed in the left side and the right side of the sleeve 30, sliding plates 31 are arranged in the through holes in a sliding mode, and triangular grooves 32 are formed in the upper surfaces of the sliding plates 31 at the positions of the through holes;
the mounting cavity 33 is arranged on the side wall of the sleeve 30, the lower end of the mounting cavity 33 is communicated with the upper end of the through hole, a first push rod 34 is arranged in the mounting cavity 33, a triangular block 35 is arranged at the lower end of the first push rod 34, and the triangular block 35 is matched with the triangular groove 32;
the extrusion plate 36 is fixedly arranged at one end, close to the screw 8, of the sliding plate 31, one side, close to the screw 8, of the extrusion plate 36 is matched with the side wall of the screw 8, and the extrusion plate 36 is made of an anti-skid material;
the first spring 37 is fixedly arranged on one side of the extrusion plate 36 far away from the screw 8, and one end of the first spring 37 far away from the extrusion plate 36 is fixedly connected with the inner wall of the sleeve 30;
and the scraper 38 is arranged at one end, far away from the screw 8, of the sliding plate 31, scrapers are arranged at the upper end and the lower end of the scraper 38, and one side, close to the inner wall of the shell 1, of the scraper 38 is matched with the inner wall of the shell 1.
The working principle and the beneficial effects of the technical scheme are as follows: the first push rod 34 is any one of an electric push rod or a hydraulic push rod, the first motor 16 is a forward and reverse rotation motor, when the stirring mechanism is in an initial state, the triangular block 35 is positioned in the triangular groove 32, the extrusion plate 36 is tightly attached to the outer wall of the screw rod 8, the first spring 37 is in a stretching state, the scraper 38 is separated from the inner wall of the shell 1, at the moment, the screw rod 8 is combined with the sleeve 30, the screw rod 8 rotates to drive the sliding plate 31 to rotate, the sleeve 30 cannot move axially along the screw rod 8, the sliding plate 31 can secondarily stir the azo dye wastewater in the shell 1 when rotating, the stirring range is enlarged by being matched with the stirring blades, the attachment on the inner wall of the shell 1 is increased along with the increase of the reaction time length in the shell 1, in order to replace manual cleaning, the hydrolysis acidification reactor is prevented from being stopped, at the moment, the first push rod 34 is controlled to retract by an external controller, the triangular block 35 is gradually separated from the triangular groove 32, under the action of the first spring 37, the sliding plate 31 slides in a direction away from the screw 8, the extrusion plate 36 is separated from the outer wall of the screw 8, the scraper 38 abuts against the inner wall of the housing 1, at this time, the screw 8 rotates to drive the sleeve 30 to move axially along the screw 8, the sleeve 30 drives the sliding plate 31 to move axially along the screw 8, so that the scraper 38 slides along the inner wall of the housing 1, the scraper 38 can scrape off the attachments on the inner wall of the housing 1 through the scraper, after scraping, the sliding plate 31 stays at different heights, the external controller controls the first push rod 34 to push out, so that the stirring mechanism returns to the initial state, the sliding plate 31 rotates in the housing 1 again and performs stirring work, because the sliding plate 31 is located at different heights, the sliding plate 31 can stir azo dye wastewater at different heights, so that a worker can set the height of the sliding plate 31 according to the height of the azo dye wastewater, fully stir azo-dye waste water, improve the adaptability of stirring mechanism, be favorable to the hydrolytic acidification reaction of azo-dye waste water, strengthened the detoxification effect of azo-dye waste water.
Example 11
On the basis of embodiment 10, as shown in fig. 2, 5 and 6, a position limiting mechanism is arranged in the sleeve 30, and the position limiting mechanism is used for limiting the position of the sliding plate 31, and the position limiting mechanism comprises:
the L-shaped plates 39 are fixedly arranged at one ends, close to the screw rods 8, of the sliding plates 31, the two L-shaped plates 39 are arranged in a central symmetry mode about the axis of the screw rods 8, the L-shaped plates 39 are located in the sleeve 30, limiting plates 40 are arranged at one ends, far away from the screw rods 8, of the L-shaped plates 39, the limiting plates 40 are connected with the L-shaped plates 39 in a sliding mode, one ends, far away from the sliding plates 31, of the limiting plates 40 are arranged to be inclined planes, a baffle plate 41 is arranged at one ends, far away from the screw rods 8, of the limiting plates 40, second springs 42 are sleeved on the limiting plates 40, one ends of the second springs 42 are fixedly connected with the side walls of the baffle plate 41, and the other ends of the second springs 42 are fixedly connected with the side walls of the L-shaped plates 39;
and a second push rod 43, wherein the second push rod 43 is arranged at one end of the L-shaped rod close to the sliding plate 31, and a roller 44 is arranged at one end of the second push rod 43 close to the screw rod 8.
The working principle and the beneficial effects of the technical scheme are as follows: the second push rod 43 is any one of an electric push rod or a hydraulic push rod, the second push rod 43 is electrically connected with an external controller, when the sliding plate 31 moves towards the direction close to the screw 8, the sliding plate 31 drives the extrusion plate 36 to approach the outer wall of the screw 8 and simultaneously drives the L-shaped plate 39 to move, the limiting plate 40 is firstly abutted against the outer wall of the screw 8, because the outer wall of the limiting plate 40 is arranged to be an inclined plane, under the guiding action of the inclined plane, the limiting plate 40 slides in the L-shaped plate 39, the second spring 42 is stretched, after the extrusion plate 36 is tightly attached to the outer wall of the screw 8, the non-inclined plane side of the limiting plate 40 is abutted against the outer wall of the screw 8, at the moment, the limiting plate 40 tightly clamps the screw 8, the sliding problem of the sliding plate 31 in the stirring process is prevented, if the first push rod 34 is retracted when in failure, under the effect of limiting plate 40, sliding plate 31 can not take place to slide, sliding plate 31 still carries out stirring work, sleeve pipe 30 can not follow screw rod 8 axial motion yet, only with first push rod 34 withdrawal, second push rod 43 releases, second push rod 43 passes through gyro wheel 44 and rolls along the inclined plane, and drive limiting plate 40 to keeping away from screw rod 8 direction motion, limiting plate 40 and screw rod 8's separation has been realized, stripper plate 36 just can separate with the screw rod 8 outer wall this moment, sleeve pipe 30 can follow screw rod 8 axial motion, then with second push rod 43 withdrawal, so that use next time, through setting up stop gear, it is further spacing to sliding plate 31, the stability that sleeve pipe 30 and screw rod 8 are connected has been improved, avoid staff's maloperation and change stirring mechanism's normal work.
Example 12
On the basis of the embodiment 10, the method further comprises the following steps;
a speed sensor provided outside the sliding plate 31 for detecting a speed of the sliding plate 31 moving up and down;
a timer provided outside the slide plate 31 for recording the total length of time that the squeegee 38 is slid up and down;
a thickness detector arranged on the inner wall of the shell 1 and used for detecting the thickness of the attachment on the inner wall of the shell 1 when the scraper 38 slides;
the alarm is arranged on the outer wall of the shell 1;
the controller is arranged on the outer wall of the shell 1 and is electrically connected with the speed sensor, the timer, the thickness detector and the alarm respectively;
the controller controls the alarm to work based on the detection values of the speed sensor, the timer and the thickness detector, and comprises the following steps:
step 401: based on the detected values of the speed sensor, the timer, and the thickness detector, the actual service life of the blade 38 is calculated by the following formula:
wherein, T M Mu is the actual service life of the scraper 38 0 Is a sliding friction coefficient, V, of the scraper 38 with the inner wall of the housing 1 i Is the average value of the detection of the speed sensor when the scraper 38 slides along the inner wall of the shell 1 for the ith time, X is the total number of times that the scraper 38 slides along the inner wall of the shell 1, V Y Is a preset sliding speed H at which the scraper 38 slides along the inner wall of the casing 1 i The value detected by the thickness detector at the i-th sliding of the squeegee 38 is H Y Is a predetermined thickness, T, of the attachment on the inner wall of the housing 1 1 The total length of time that the squeegee 38 slides up and down is recorded for the timer;
step 402: based on the calculation result of the step 401, the controller compares the actual service life of the scraper 38 with the preset service life of the scraper 38, and when the actual service life of the scraper 38 is longer than the preset service life, the controller controls the alarm to give an alarm prompt.
The working principle and the beneficial effects of the technical scheme are as follows: because the thickness of the attachments on the inner wall of the shell 1 is different every time the scraper 38 is started, and the sliding speed of the scraper 38 along the inner wall of the shell 1 is different, the scraper 38 can cause abrasion of different degrees when scraping the attachments on the inner wall of the shell 1, in order to timely replace the scraper 38 with serious abrasion, according to the detection values of the speed sensor, the timer and the thickness detector, the actual service life of the scraper 38 can be accurately calculated through the formula, wherein the preset thickness of the attachments on the inner wall of the shell 1 is 1cm, the preset sliding speed of the scraper 38 sliding along the inner wall of the shell 1 is 1m/min, the controller can compare the actual service life of the scraper 38 with the preset service life, when the actual service life is longer than the preset service life, the controller controls the alarm to send an alarm prompt a worker to timely replace the scraper 38, the scraping effect of the scraper 38 on the attachments on the inner wall of the shell 1 is ensured, the scraping efficiency is improved, the automatic monitoring of the actual service life of the scraper 38 is realized according to the difference of the sliding speed and the thicknesses of the attachments, manual spot inspection is not needed, the labor intensity is reduced, and the safety of the azo detoxification wastewater is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such 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 such modifications and variations.
Claims (10)
1. A method for enhancing the detoxification and synergism of azo dye wastewater by hydrolytic acidification coupling is characterized by comprising the following steps:
step 1: arranging hydrolytic acidification bacteria in the hydrolytic acidification reactor;
step 2: enabling the azo dye wastewater to flow into a hydrolysis acidification reactor, and starting hydrolysis acidification reaction;
and 3, step 3: and meanwhile, starting an electrolysis device to electrolyze the azo dye wastewater in the hydrolysis acidification reactor.
2. The method for enhancing the detoxification and efficiency of the azo dye wastewater through hydrolytic acidification coupling as claimed in claim 1, wherein in the step 2, the temperature of the azo dye wastewater in the hydrolytic acidification reactor is 25 ℃ to 35 ℃.
3. The method for detoxifying and enhancing azo dye wastewater through hydrolytic acidification coupling enhancement according to claim 1, wherein in step 3, after electrolysis for a preset time, the ultraviolet generator is started, the azo dye wastewater in the hydrolytic acidification reactor is irradiated by the ultraviolet lamp, and sodium sulfite is added into the hydrolytic acidification reactor.
4. The device for detoxifying and enhancing the azo dye wastewater by adopting the method for detoxifying and enhancing the azo dye wastewater by coupling hydrolysis acidification according to any one of claims 1 to 3 comprises a hydrolysis acidification reactor, wherein the hydrolysis acidification reactor comprises a shell, the left side wall of the shell is provided with a feed inlet and a water inlet respectively, the right side wall of the shell is provided with a water outlet, the bottom of the shell is provided with a supporting leg, the center of the outer wall of the bottom of the shell is provided with a stirring motor, the upper end of the stirring motor is fixedly connected with the bottom wall of the shell, the output end of the stirring motor is provided with a stirring shaft, the upper end of the stirring shaft penetrates through the bottom wall of the shell and extends into the shell, the stirring shaft is connected with the bottom wall of the shell in a sealing and rotating manner, the outer wall of the stirring shaft is provided with a plurality of stirring blades, and the upper end of the stirring shaft is fixedly provided with a screw rod.
5. The hydrolysis acidification coupling reinforced azo dye wastewater detoxification and synergism device according to claim 4, wherein a cover plate is arranged at the upper end of the housing, the cover plate is detachably connected with the upper end of the housing, a plurality of ultraviolet lamps are arranged on the lower surface of the cover plate, an ultraviolet generator is arranged on the upper surface of the cover plate, and the ultraviolet lamps are electrically connected with the ultraviolet generator.
6. The device for detoxifying and enhancing azo dye wastewater according to claim 4, wherein an electrolysis device is disposed on the outer wall of the housing, an anode and a cathode are disposed in the housing, and the anode and the cathode are electrically connected to the electrolysis device respectively.
7. The device according to claim 6, wherein a fixed plate is arranged in the housing, the left and right ends of the fixed plate are fixedly connected with the inner walls of the left and right sides of the housing respectively, a first motor is arranged above the fixed plate, the rear end of the first motor is fixedly connected with the inner wall of the rear side of the housing, the output end of the first motor is provided with a first rotating shaft, a rotating disc is fixedly arranged at the front end of the first rotating shaft, a rectangular frame is arranged in front of the rotating disc, a sliding column is arranged at the lower end of the rectangular frame, the lower end of the sliding column penetrates through the fixed plate and is slidably connected with the fixed plate, a rotating rod is slidably arranged in the rectangular frame, the rear end of the rotating rod is rotatably connected with the eccentric position of the rotating disc, a cross rod is symmetrically and fixedly arranged at the left end and the right end of the rectangular frame, a connecting rod is fixedly arranged at the lower end of the cross rod, the lower end of the connecting rod penetrates through the fixed plate and is slidably connected with the fixed plate, the lower end of the left connecting rod is fixedly connected with the upper end of the anode, and the lower end of the right rod is fixedly connected with the upper end of the cathode.
8. The device for enhancing the detoxification and synergism of azo dye wastewater by hydrolytic acidification coupling according to claim 7, wherein the rotating rod slides left and right along the inner wall of the rectangular frame.
9. The device for detoxifying and enhancing azo dye wastewater by coupling hydrolysis and acidification as claimed in claim 7, wherein a rotary drum is sleeved outside the connecting rod, the upper end of the rotary drum is rotatably connected with the lower surface of the fixing plate, and a plurality of bristles are arranged on the inner wall of the rotary drum.
10. The detoxification and efficiency-improving device for azo dye wastewater through hydrolytic acidification coupling strengthening as claimed in claim 9, wherein a rotating mechanism is arranged in the housing, the rotating mechanism is used for controlling the rotation of the rotating drum, and the rotating mechanism comprises:
the gear column is fixedly sleeved on the outer wall of the rotary drum;
the spline housing is fixedly arranged at the upper end of the screw rod, a spline shaft is arranged in the spline housing in a sliding mode, the spline shaft slides up and down along the inner wall of the spline housing, and the upper end of the spline shaft is rotationally connected with the lower end of the sliding column;
the first gear, the fixed cover of first gear is established at the integral key shaft outer wall, first gear is located between two gear posts, first gear and gear post meshing.
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