CN115477447B - Hydrolysis acidification coupling strengthening azo dye wastewater detoxification synergistic method and device - Google Patents
Hydrolysis acidification coupling strengthening azo dye wastewater detoxification synergistic method and device Download PDFInfo
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- CN115477447B CN115477447B CN202211235987.6A CN202211235987A CN115477447B CN 115477447 B CN115477447 B CN 115477447B CN 202211235987 A CN202211235987 A CN 202211235987A CN 115477447 B CN115477447 B CN 115477447B
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- 230000020477 pH reduction Effects 0.000 title claims abstract description 87
- 239000000987 azo dye Substances 0.000 title claims abstract description 85
- 239000002351 wastewater Substances 0.000 title claims abstract description 79
- 230000007062 hydrolysis Effects 0.000 title claims abstract description 55
- 238000006460 hydrolysis reaction Methods 0.000 title claims abstract description 55
- 238000001784 detoxification Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000008878 coupling Effects 0.000 title claims abstract description 19
- 238000010168 coupling process Methods 0.000 title claims abstract description 19
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 19
- 230000002195 synergetic effect Effects 0.000 title claims abstract description 19
- 238000005728 strengthening Methods 0.000 title claims abstract description 15
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 32
- 230000003301 hydrolyzing effect Effects 0.000 claims abstract description 32
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 241000894006 Bacteria Species 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 50
- 238000007790 scraping Methods 0.000 claims description 23
- 230000007246 mechanism Effects 0.000 claims description 19
- 238000001125 extrusion Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 6
- 235000010265 sodium sulphite Nutrition 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 230000002708 enhancing effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 11
- 239000000126 substance Substances 0.000 abstract description 3
- 230000002401 inhibitory effect Effects 0.000 abstract description 2
- 230000000813 microbial effect Effects 0.000 abstract description 2
- 239000005416 organic matter Substances 0.000 abstract description 2
- 231100000614 poison Toxicity 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000007142 ring opening reaction Methods 0.000 abstract description 2
- 239000003440 toxic substance Substances 0.000 abstract description 2
- 230000000670 limiting effect Effects 0.000 description 17
- 230000009286 beneficial effect Effects 0.000 description 12
- 238000001514 detection method Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention provides a hydrolysis acidification coupling strengthening azo dye wastewater detoxification synergistic method and a device, wherein the detoxification synergistic method comprises the following steps: arranging hydrolytic acidification bacteria in the hydrolytic acidification reactor; flowing azo dye wastewater into a hydrolysis acidification reactor to start hydrolysis acidification reaction; and simultaneously 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 azo dye wastewater are removed through a hydrolysis acidification process, meanwhile, the azo dye wastewater in the hydrolysis acidification reactor is electrolyzed by an electrolysis device, electrolysis and hydrolysis acidification are carried out simultaneously, so that a microbial reduction effect is promoted, quick ring opening of azo dyes is realized, a detoxification effect on the azo dye wastewater is enhanced, and after a hardly degradable organic matter structure is converted into an easily degradable structure through the hydrolysis acidification process, the electrolysis duration can be effectively shortened, the detoxification efficiency is improved, and the aim of saving cost is fulfilled.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a hydrolysis acidification coupling strengthening azo dye wastewater detoxification synergistic method and device.
Background
Azo dye wastewater is common printing and dyeing wastewater, and seriously damages the natural environment due to the characteristics of high concentration of organic matters, complex components, more refractory substances, large chromaticity, toxicity and the like.
For the treatment of azo dye wastewater, the invention of grant publication No. CN107082485B discloses a method for removing azo dye mixed polluted wastewater by utilizing a bioelectrochemical reactor system, which comprises the following steps: 1. building a bioelectrochemical reactor system; 2. sludge culture and acclimation of the bioelectrochemical reactor system; 3. operation of the bioelectrochemical reactor system. The removal rates of the effluent COD, inorganic nitrogen and azo dye of the reactor can reach 89%, 75% and 92%, respectively, and the mixed polluted wastewater containing azo dye can be effectively removed, so that the method can be used in sewage treatment engineering. However, the method has long electrolysis time, high cost and low azo dye wastewater treatment efficiency, and needs a large amount of energy sources to be consumed, and the hydrolysis and acidification processes and the electrolysis processes of the azo dye wastewater are independently carried out.
Disclosure of Invention
The invention provides a hydrolysis acidification coupling strengthening azo dye wastewater detoxification synergistic method and device, which are used for solving the technical problems that the existing azo dye wastewater treatment process has long electrolysis time, needs to consume a large amount of energy, has higher cost, and has low azo dye wastewater treatment efficiency because the hydrolysis acidification process and the electrolysis process of the azo dye wastewater are carried out independently.
In order to solve the technical problems, the invention discloses a hydrolysis acidification coupling strengthening azo dye wastewater detoxification synergistic method and a device, comprising the following steps:
step 1: arranging hydrolytic acidification bacteria in the hydrolytic acidification reactor;
step 2: flowing azo dye wastewater into a hydrolysis acidification reactor to start hydrolysis acidification reaction;
step 3: and simultaneously 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 hydrolytic acidification reactor is 25 ℃ to 35 ℃.
Preferably, in the step 3, after the electrolysis is performed for a predetermined period of time, an ultraviolet generator is started, azo dye wastewater in the hydrolysis acidification reactor is irradiated by an ultraviolet lamp, and sodium sulfite is added into the hydrolysis acidification reactor.
The hydrolysis acidification coupling strengthening azo dye wastewater detoxification synergistic device adopts the hydrolysis acidification coupling strengthening azo dye wastewater detoxification synergistic method to carry out azo dye wastewater detoxification, and the device comprises a hydrolysis acidification reactor, wherein the hydrolysis acidification reactor comprises a shell, a feed inlet and a water inlet are respectively arranged on the left side wall of the shell, a water outlet is arranged on the right side wall of the shell, a supporting leg is arranged at the bottom of the shell, a stirring motor is arranged at the center position of the outer wall of the bottom of the shell, the upper end of the stirring motor is fixedly connected with the bottom wall of the shell, a stirring shaft is arranged at the output end of the stirring motor, the upper end of the stirring shaft penetrates through the bottom wall of the shell and extends into the shell, the stirring shaft is in sealing rotation connection with the bottom wall of the shell, a plurality of stirring blades are arranged on the outer wall of the stirring shaft, and a screw is fixedly arranged at the upper end of the stirring shaft.
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, and an anode and a cathode are arranged in the shell and are respectively and electrically connected with the electrolysis device.
Preferably, the fixed plate is arranged in the shell, the left end and the right end of the fixed plate are respectively fixedly connected with the inner walls of the left side and the right side of the shell, 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 shell, the output end of the first motor is provided with a first rotating shaft, the front end of the first rotating shaft is fixedly provided with a rotating disc, the front of the rotating disc is provided with a rectangular frame, the lower end of the rectangular frame is provided with a sliding column, the lower end of the sliding column penetrates through the fixed plate and is in sliding connection with the fixed plate, a rotating rod is arranged in the rectangular frame in a sliding manner, the rear end of the rotating rod is in rotating connection with the eccentric position of the rotating disc, a transverse rod is symmetrically and fixedly arranged at the left end and the right end of the rectangular frame, the lower end of the connecting rod penetrates through the fixed plate and is in sliding connection with the upper end of the fixed plate, and the lower end of the connecting rod on the left side is fixedly connected with the upper end of the anode.
Preferably, the rotating rod slides left and right along the inner wall of the rectangular frame.
Preferably, the rotary drum is sleeved outside the connecting rod, the upper end of the rotary drum is rotationally 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 a sliding mode in the spline housing, 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 is fixedly sleeved on the outer wall of the spline shaft, the first gear is positioned between the two gear columns, and the first gear is meshed with the gear columns.
The technical scheme of the invention has the following advantages: the invention provides a hydrolysis acidification coupling strengthening azo dye wastewater detoxification synergistic method and a device, wherein the detoxification synergistic method comprises the following steps: arranging hydrolytic acidification bacteria in the hydrolytic acidification reactor; flowing azo dye wastewater into a hydrolysis acidification reactor to start hydrolysis acidification reaction; and simultaneously 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 azo dye wastewater are removed through a hydrolysis acidification process, meanwhile, the azo dye wastewater in the hydrolysis acidification reactor is electrolyzed by an electrolysis device, electrolysis and hydrolysis acidification are carried out simultaneously, so that a microbial reduction effect is promoted, quick ring opening of azo dyes is realized, a detoxification effect on the azo dye wastewater is enhanced, and after a hardly degradable organic matter structure is converted into an easily degradable structure through the hydrolysis acidification process, the electrolysis duration can be effectively shortened, the detoxification efficiency is improved, and the aim of saving cost is fulfilled.
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 objects and other advantages of the invention may be realized and attained by means of the instrumentalities particularly pointed out in the written description and the appended drawings.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of the steps of a hydrolysis acidification coupling enhancement azo dye wastewater detoxification synergistic method of the invention;
FIG. 2 is a schematic diagram of the overall structure of a hydrolysis acidification coupling enhancement azo dye wastewater detoxification synergistic device of the invention;
FIG. 3 is an enlarged view of the invention at A in FIG. 2;
FIG. 4 is an enlarged view of the invention at B in FIG. 2;
FIG. 5 is an enlarged view of FIG. 2 at C in accordance with the present invention;
fig. 6 is a partial cross-sectional view of the invention at D-D in fig. 5.
In the figure: 1. a housing; 2. a feed inlet; 3. a water inlet; 4. a water outlet; 5. support legs; 6. a stirring motor; 7. a stirring shaft; 8. a screw; 9. a cover plate; 10. an ultraviolet lamp; 11. an ultraviolet 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. a rotating disc; 19. a rectangular frame; 20. a sliding column; 21. a rotating lever; 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. triangular grooves; 33. a mounting cavity; 34. a first push rod; 35. triangular blocks; 36. an extrusion plate; 37. a first spring; 38. a scraper; 39. an L-shaped plate; 40. a limiting plate; 41. a baffle; 42. a second spring; 43. a second push rod; 44. and a roller.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the invention solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between the embodiments may be combined with each other, but it is necessary to base that a person skilled in the art can implement the combination of technical solutions, when the combination of technical solutions contradicts or cannot be implemented, should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present invention.
Example 1:
the embodiment of the invention provides a hydrolysis acidification coupling strengthening azo dye wastewater detoxification synergistic method, which is shown in figures 1-6 and comprises the following steps:
step 1: arranging hydrolytic acidification bacteria in the hydrolytic acidification reactor;
step 2: flowing azo dye wastewater into a hydrolysis acidification reactor to start hydrolysis acidification reaction;
step 3: simultaneously, the electrolysis device 12 is started to electrolyze the azo dye wastewater in the hydrolytic acidification reactor.
The working principle and the beneficial effects of the technical scheme are as follows: the method comprises the steps of arranging hydrolytic acidification bacteria in a hydrolytic acidification reactor, adding high-efficiency decoloring microorganisms for decoloring azo dye wastewater, enabling the azo dye wastewater to flow into the hydrolytic acidification reactor to start hydrolytic acidification reaction, starting an electrolysis device 12 at the same time, and electrolyzing the azo dye wastewater in the hydrolytic acidification reactor.
Example 2
Based on the above example 1, in the step 2, the temperature of the azo dye wastewater in the hydrolytic 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 at 25-35 ℃, and a proper treatment environment is provided for microorganisms in the hydrolytic acidification reactor, so that the hydrolytic acidification efficiency is improved, and the detoxification effect is enhanced.
Example 3
On the basis of example 1 or 2, after electrolysis for a predetermined period of time in said step 3, the ultraviolet generator 11 is started, azo dye wastewater in the hydrolytic acidification reactor is irradiated by the ultraviolet lamp 10, and sodium sulfite is added into the hydrolytic 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 a preset time, sodium sulfite is added into the hydrolysis acidification reactor after the preset time, meanwhile, the ultraviolet generator 11 is started, 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, 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 the embodiments 1-3, as shown in fig. 2-6, the invention further provides a hydrolysis acidification coupling strengthening azo dye wastewater detoxification synergistic device, the hydrolysis acidification coupling strengthening azo dye wastewater detoxification synergistic method is adopted to carry out azo dye wastewater detoxification, the hydrolysis acidification reactor comprises a hydrolysis acidification reactor, the hydrolysis acidification reactor comprises a shell 1, a feed inlet 2 and a water inlet 3 are respectively arranged on the left side wall of the shell 1, a water outlet 4 is arranged on the right side wall of the shell 1, a supporting leg 5 is arranged at the bottom of the shell 1, a stirring motor 6 is arranged at the center of the outer wall of the bottom of the shell 1, the upper end of the stirring motor 6 is fixedly connected with the bottom wall of the shell 1, a stirring shaft 7 is arranged at the output end of the stirring motor 6, 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 rotary connection with the bottom wall of the shell 1, a plurality of stirring blades are arranged on the outer wall of the stirring shaft 7, and a screw 8 is fixedly arranged at the upper end of the stirring shaft 7.
The working principle and the beneficial effects of the technical scheme are as follows: the hydrolytic acidification reactor comprises a shell 1, wherein a feed inlet 2, a water inlet 3 and a water outlet 4 are respectively arranged on the side wall of the shell 1, azo dye wastewater can be added into the shell 1 through the water inlet 3, hydrolytic acidification bacteria and other microorganisms for treating azo dye wastewater are added into the shell 1 through the feed inlet 2, then a stirring motor 6 is started, the stirring motor 6 works to drive a stirring shaft 7 and a screw rod 8 to rotate, the stirring shaft 7 drives a stirring blade to rotate in the shell 1, so that the azo dye wastewater in the shell 1 is stirred, the azo dye wastewater and the hydrolytic acidification bacteria are fully contacted and reacted, so that azo dye molecules are accelerated to open the loops, the hydrolytic acidification efficiency of the azo dye wastewater is improved, and the detoxification effect is enhanced.
Example 5
On the basis of embodiment 4, as shown in fig. 2, a cover plate 9 is disposed at the upper end of the housing 1, the cover plate 9 is detachably connected with the upper end of the housing 1, a plurality of ultraviolet lamps 10 are disposed on the lower surface of the cover plate 9, an ultraviolet generator 11 is disposed 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: the cover plate 9 is provided with an ultraviolet generator 11, and the ultraviolet generator 11 controls the ultraviolet lamp 10 to be turned on, so that azo dye wastewater in the shell 1 is irradiated, and organic matters in the azo dye wastewater are eliminated.
Example 6
On the basis of example 4, as shown in fig. 2, an electrolysis device 12 is disposed on the outer wall of the casing 1, an anode 13 and a cathode 14 are disposed in the casing 1, and the anode 13 and the cathode 14 are respectively electrically connected with the electrolysis device 12.
The working principle and the beneficial effects of the technical scheme are as follows: the electrolysis device 12 is used for electrolyzing the azo dye wastewater in the shell 1 through the anode 13 and the cathode 14, so that the hydrolytic acidification efficiency is promoted on one hand, and the removal rate of azo dye molecules is improved on the other hand.
Example 7
On the basis of embodiment 6, as shown in fig. 2 and 3, a fixed plate 15 is disposed in the casing 1, the left and right ends of the fixed plate 15 are respectively and fixedly connected with the inner walls of the left and right sides of the casing 1, a first motor 16 is disposed above the fixed plate 15, the rear end of the first motor 16 is fixedly connected with the inner wall of the rear side of the casing 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, the front of the rotating disc 18 is provided with a rectangular frame 19, 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 fixed plate 15 and is in sliding connection with the fixed plate 15, a rotating rod 21 is slidably disposed in the rectangular frame 19, the rear end of the rotating rod 21 is in eccentric position with the rotating disc 18, the left and right ends of the rectangular frame 19 are symmetrically and fixedly provided with a cross rod 22, the lower end of the cross rod 22 is fixedly disposed with a connecting rod 23, the lower end of the connecting rod 23 penetrates through the fixed plate 15 and is in sliding connection with the penetrating position of the fixed plate 15, the lower end of the connecting rod 23 is fixedly connected with the upper end of the anode 13, and the lower end of the connecting rod 13 is fixedly connected with the upper 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 start to work respectively, 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 the 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, thereby driving the rectangular frame 19 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 cross rod 22 to reciprocate up and down, the cross rod 22 drives the connecting rod 23 to slide up and down in the fixed plate 15, and 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 arrangement that the anode 13 and the cathode 14 are fixedly arranged, the contact range of the anode 13 and the cathode 14 can be increased, the azo dye wastewater near the fixed plate 15 can be electrolyzed, the azo dye wastewater can be further electrolyzed, the azo dye wastewater in a deeper position can be further electrolyzed, the azo dye wastewater can be further electrolyzed, the waste dye toxicity-removing efficiency is further improved, the waste water is further shortened, and the waste water is further electrolyzed time cost is saved.
Example 8
On the basis of embodiment 7, as shown in fig. 2-4, a rotary drum 24 is sleeved outside the connecting rod 23, the upper end of the rotary drum 24 is rotatably connected with the lower surface of the fixed plate 15, and a plurality of bristles 25 are arranged on the inner wall of the rotary drum 24.
The working principle and the beneficial effects of the technical scheme are as follows: while 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 brush hair 25 can be contacted 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 fully contacted with azo dye wastewater, the reaction rate of the anode 13 and the cathode 14 is not 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 rotation mechanism for controlling rotation of the drum 24 is provided in the housing 1, the rotation mechanism comprising:
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 rod 8, the spline housing 27 is slidably provided with a spline shaft 28, 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;
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: at the stirring of the stirring shaft 7, the stirring shaft 7 drives the screw rod 8 to rotate, the screw rod 8 drives the spline housing 27 to rotate, the inner wall of the spline housing 27 is matched with the outer wall of the spline shaft 28, the spline shaft 28 can rotate along with the spline housing 27 while vertically reciprocate 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 outer walls of the anode 13 and the cathode 14 can be cleaned when the bristles 25 rotate, the cleaning effect can be improved by utilizing the rotating bristles 25 to clean the single up-down sliding cleaning, the attachments on the outer walls of the anode 13 and the cathode 14 can be reduced as much as possible, the reaction rate of the anode 13 and the cathode 14 can be fully ensured, the electrolytic detoxification effect can be enhanced, the labor intensity of workers can be reduced, and the automation degree of the device can be 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 positions of the sliding plates 31 located in the through holes;
the installation cavity 33 is arranged on the side wall of the sleeve 30, the lower end of the installation cavity 33 is communicated with the upper end of the through hole, a first push rod 34 is arranged in the installation 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 rod 8, of the sliding plate 31, one side, close to the screw rod 8, of the extrusion plate 36 is matched with the side wall of the screw rod 8, and the extrusion plate 36 is made of an anti-slip material;
the first spring 37 is fixedly arranged on one side, far away from the screw rod 8, of the extrusion plate 36, and one end, far away from the extrusion plate 36, of the first spring 37 is fixedly connected with the inner wall of the sleeve 30;
the scraper blade 38, the scraper blade 38 sets up in the one end that the slip board 31 kept away from the screw rod 8, scraper blade 38 upper and lower both ends all set up the scraper blade, scraper blade 38 is close to casing 1 inner wall one side and casing 1 inner wall looks adaptation.
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 and a hydraulic push rod, the first motor 16 is a forward and reverse rotation motor, the triangular block 35 is positioned in the triangular groove 32 when the stirring mechanism is in an initial state, 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 scraping plate 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 can not axially move along the screw rod 8, the sliding plate 31 can stir azo dye wastewater in the shell 1 for the second time when rotating, the stirring range is enlarged by matching with stirring blades, the attachments on the inner wall of the shell 1 are increased along with the increase of the reaction time in the shell 1, in order to replace manual cleaning, the hydrolysis acidification reactor is avoided, 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 far away from the screw rod 8, the extruding plate 36 is separated from the outer wall of the screw rod 8, the scraping plate 38 is abutted against the inner wall of the shell 1, at this time, the screw rod 8 rotates to drive the sleeve 30 to axially move along the screw rod 8, the sleeve 30 drives the sliding plate 31 to axially move along the screw rod 8, the scraping plate 38 slides along the inner wall of the shell 1, the scraping plate 38 can scrape attachments on the inner wall of the shell 1 through the scraping plate, after scraping, the sliding plate 31 stays at different heights, the external controller controls the first pushing rod 34 to push out, so that the stirring mechanism is restored to the initial state, the sliding plate 31 rotates in the shell 1 again and performs stirring work, and as the sliding plate 31 is located at different heights, the sliding plate 31 can stir azo dye waste water at different heights, so that workers can set the heights of the sliding plate 31 according to the heights of the azo dye waste water, the azo dye wastewater is fully stirred, the adaptability of the stirring mechanism is improved, the hydrolysis and acidification reaction of the azo dye wastewater are facilitated, and the detoxification effect of the azo dye wastewater is enhanced.
Example 11
On the basis of embodiment 10, as shown in fig. 2, 5 and 6, a limiting mechanism is disposed in the sleeve 30, and the limiting mechanism is used for limiting the position of the sliding plate 31, and the limiting mechanism includes:
the L-shaped plates 39 are fixedly arranged at one end, close to the screw rod 8, of the sliding plate 31, two L-shaped plates 39 are arranged in a central symmetry mode with respect to the axis of the screw rod 8, the L-shaped plates 39 are positioned in the sleeve 30, one end, far away from the sliding plate 31, of each L-shaped plate 39 is provided with a limiting plate 40, each limiting plate 40 is in sliding connection with the corresponding L-shaped plate 39, one end, far away from the sliding plate 31, of each limiting plate 40 is provided with a baffle 41, one end, far away from the screw rod 8, of each limiting plate 40 is provided with a second spring 42 in a sleeved mode, one end of each second spring 42 is fixedly connected with the side wall of each baffle 41, and the other end of each second spring 42 is fixedly connected with the side wall of each L-shaped plate 39;
the second push rod 43, the second push rod 43 is arranged at one end of the L-shaped rod close to the sliding plate 31, and the second push rod 43 is arranged at one end close to the screw rod 8 and is provided with a roller 44.
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 approaching to the screw rod 8, the sliding plate 31 drives the extrusion plate 36 to approach to the outer wall of the screw rod 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 rod 8, under the guiding effect of the inclined plane due to the inclined plane arranged on the outer wall of the limiting plate 40, the limiting plate 40 slides in the L-shaped plate 39, the second spring 42 stretches, after the extrusion plate 36 is abutted against the outer wall of the screw rod 8, the non-inclined plane side of the limiting plate 40 is abutted against the outer wall of the screw rod 8, at the moment, the limiting plate 40 clamps the screw rod 8 to prevent the sliding of the sliding plate 31 in the stirring process, if the first push rod 34 fails, under the effect of limiting plate 40, sliding plate 31 can not take place to slide, sliding plate 31 still stirs the work, sleeve pipe 30 can not follow screw rod 8 axial motion yet, only withdraw first push rod 34, second push rod 43 release, second push rod 43 rolls along the inclined plane through gyro wheel 44, and drive limiting plate 40 to keeping away from screw rod 8 direction motion, the separation of limiting plate 40 and screw rod 8 has been realized, the extrusion plate 36 just can be separated with screw rod 8 outer wall this moment, sleeve pipe 30 can follow screw rod 8 axial motion, then withdraw second push rod 43, so that the next use, through setting up stop gear, further spacing to sliding plate 31, the stability of sleeve pipe 30 and screw rod 8 connection has been improved, avoid the staff maloperation and change stirring mechanism's normal work.
Example 12
On the basis of the embodiment 10, the method further comprises the following steps of;
a speed sensor provided outside the slide plate 31 for detecting the speed of up-and-down movement of the slide plate 31;
a timer provided outside the slide plate 31 for recording a total length of time for which the squeegee 38 slides up and down;
a thickness detector provided on the inner wall of the housing 1 for detecting the thickness of the attached matter on the inner wall of the housing 1 when the squeegee 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 detection values of the speed sensor, the timer and the thickness detector, and the controller comprises the following steps:
step 401: based on the detection values of the speed sensor, the timer, the thickness detector, the actual service life of the squeegee blade 38 is calculated by the following formula:
wherein T is M For the actual service life of the blade 38 mu 0 V is the sliding friction coefficient of the scraping plate 38 and the inner wall of the shell 1 i For the detection average value of the speed sensor when the scraper 38 slides along the inner wall of the housing 1 for the ith time, X is the total number of times the scraper 38 slides along the inner wall of the housing 1, V Y For a predetermined sliding speed H of the scraper 38 sliding along the inner wall of the housing 1 i H, which is the detection value of the thickness detector at the ith sliding of the squeegee 38 Y Is the preset thickness T of the attachment on the inner wall of the shell 1 1 The total length of time the squeegee 38 is slid up and down, recorded for the timer;
step 402: based on the calculation result of 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 send out 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 when the scraping plate 38 is started each time, and the sliding speed of the scraping plate 38 along the inner wall of the shell 1 is different, the scraping plate 38 can cause different degrees of abrasion when scraping the attachments on the inner wall of the shell 1, in order to replace the severely worn scraping plate 38 in time, according to the detection values of the speed sensor, the timer and the thickness detector, the actual service life of the scraping plate 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 scraping plate 38 sliding along the inner wall of the shell 1 is 1m/min, the actual service life of the scraping plate 38 can be compared with the preset service life by the controller, and when the actual service life is longer than the preset service life, the controller controls the alarm to give an alarm prompt, thereby reminding a worker to replace the scraping plate 38 in time, the scraping effect of the attachments on the inner wall of the shell 1 is guaranteed, the scraping efficiency is improved, the automatic monitoring of the actual service life of the scraping plate 38 is realized according to the difference of the sliding speed and the thickness of the attachments, the manual point detection is not needed, the labor intensity is reduced, and the safety of azo dye detoxification is improved.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (4)
1. The hydrolysis acidification coupling strengthening azo dye wastewater detoxification synergistic device is characterized by comprising a hydrolysis acidification reactor, wherein the hydrolysis acidification reactor comprises a shell, a feed inlet and a water inlet are respectively arranged on the left side wall of the shell, a water outlet is arranged on the right side wall of the shell, supporting legs are arranged at the bottom of the shell, a stirring motor is arranged at the center of the outer wall of the bottom of the shell, the upper end of the stirring motor is fixedly connected with the bottom wall of the shell, a stirring shaft is arranged at the output end of the stirring motor, the upper end of the stirring shaft penetrates through the bottom wall of the shell and extends into the shell, the stirring shaft is in sealing rotation connection with the bottom wall of the shell, a plurality of stirring blades are arranged on the outer wall of the stirring shaft, and a screw is fixedly arranged at the upper end of the stirring shaft;
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 and electrically connected with the electrolysis device;
the device comprises a shell, a fixed plate is arranged in the shell, the left end and the right end of the fixed plate are respectively and fixedly connected with the inner walls of the left side and the right side of the shell, 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 shell, a first rotating shaft is arranged at the output end of the first motor, 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 in sliding connection with the fixed plate, a rotating rod is arranged in the rectangular frame in a sliding manner, the rear end of the rotating rod is in rotating connection with the eccentric position of the rotating disc, transverse rods are 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 transverse rod, penetrates through the fixed plate and is in sliding connection with the penetrating position of the fixed plate, the lower end of the connecting rod on the left side is fixedly connected with the upper end of the anode, and the lower end of the connecting rod on the right side is fixedly connected with the upper end of the cathode;
the rotating rod slides left and right along the inner wall of the rectangular frame;
the connecting rod is sleeved with a rotary drum, the upper end of the rotary drum is rotationally connected with the lower surface of the fixed plate, and the inner wall of the rotary drum is provided with a plurality of bristles;
set up slewing mechanism in the casing, slewing mechanism is used for controlling the rotary drum rotation, slewing 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 a sliding mode in the spline housing, 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 is fixedly sleeved on the outer wall of the spline shaft, is positioned between the two gear columns and is meshed with the gear columns;
still set up rabbling mechanism in the casing, rabbling mechanism includes:
the sleeve is sleeved outside the screw, the upper end of the sleeve is in threaded transmission connection with the screw, the lower end of the sleeve is communicated with the inside of the shell, through holes are symmetrically formed in the left side and the right side of the sleeve, sliding plates are arranged in the through holes in a sliding mode, and triangular grooves are formed in the upper surfaces of the positions of the sliding plates located in the through holes;
the installation cavity is arranged on the side wall of the sleeve, the lower end of the installation cavity is communicated with the upper end of the through hole, a first push rod is arranged in the installation cavity, a triangular block is arranged at the lower end of the first push rod, and the triangular block is matched with the triangular groove;
the extrusion plate is fixedly arranged at one end, close to the screw, of the sliding plate, one side, close to the screw, of the extrusion plate is matched with the side wall of the screw, and the extrusion plate is made of an anti-skid material;
the first spring is fixedly arranged on one side, far away from the screw rod, of the extrusion plate, and one end, far away from the extrusion plate, of the first spring is fixedly connected with the inner wall of the sleeve;
the scraping plate is arranged at one end, far away from the screw rod, of the sliding plate, scraping plates are arranged at the upper end and the lower end of the scraping plate, and one side, close to the inner wall of the shell, of the scraping plate is matched with the inner wall of the shell;
the method for enhancing the detoxification and synergy of the azo dye wastewater by hydrolysis and acidification coupling further comprises the following steps of:
step 1: arranging hydrolytic acidification bacteria in the hydrolytic acidification reactor;
step 2: flowing azo dye wastewater into a hydrolysis acidification reactor to start hydrolysis acidification reaction;
step 3: and simultaneously starting an electrolysis device to electrolyze the azo dye wastewater in the hydrolysis acidification reactor.
2. The hydrolytic acidification coupling enhanced azo dye wastewater detoxification synergistic device according to 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 device for detoxification and synergy of hydrolytic acidification coupling strengthening azo dye wastewater according to claim 1, wherein in the step 3, after electrolysis is performed for a preset period of time, an ultraviolet generator is started, the azo dye wastewater in the hydrolytic acidification reactor is irradiated by an ultraviolet lamp, and sodium sulfite is added into the hydrolytic acidification reactor.
4. The hydrolysis acidification coupling strengthening azo dye wastewater detoxification synergistic device according to claim 1, wherein a cover plate is arranged at the upper end of the shell, the cover plate is detachably connected with the upper end of the shell, 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.
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