CN116022935A - Zinc-nickel wastewater biological vein breaking treatment process - Google Patents
Zinc-nickel wastewater biological vein breaking treatment process Download PDFInfo
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- CN116022935A CN116022935A CN202310311095.8A CN202310311095A CN116022935A CN 116022935 A CN116022935 A CN 116022935A CN 202310311095 A CN202310311095 A CN 202310311095A CN 116022935 A CN116022935 A CN 116022935A
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention relates to the technical field of zinc-nickel wastewater treatment, in particular to a biological vein-breaking treatment process for zinc-nickel wastewater, which comprises the following operation steps: s1, homogenizing zinc-nickel wastewater; s2, adjusting the pH value of the zinc-nickel wastewater according to the actual acidity condition of the zinc-nickel wastewater. The biological reaction device provided by the invention can be used as a reaction container for zinc-nickel wastewater complex breaking treatment, meanwhile, a solution introducing mechanism is arranged to realize the multi-batch small-quantity mixing function of zinc-nickel wastewater and biological bacteria, and a substance adding component is used for respectively adding zinc-nickel wastewater and biological bacteria into a single solution mixing component according to the set ratio of the zinc-nickel wastewater to the biological bacteria, so that the mixing dosage of the zinc-nickel wastewater and the biological bacteria is reduced, the better mixing of the zinc-nickel wastewater and the biological bacteria can be promoted, and the biological bacteria content in each liter of zinc-nickel wastewater can be controlled within a required range value.
Description
Technical Field
The invention relates to the field of zinc-nickel wastewater treatment, in particular to a biological vein-breaking treatment process for zinc-nickel wastewater.
Background
Electroplating wastewater is wastewater generated in an electroplating process, and the sources are generally: the plating part cleaning water, waste electroplating solution and other waste water have complex water quality and difficult control of components, and contain heavy metal ions such as chromium, cadmium, nickel, copper, zinc, gold, silver and the like, cyanide and the like, and some substances belong to cancerogenic, teratogenic and mutation-causing virulent substances, so that the electroplating waste water can be discharged after being treated.
At present, the treatment method of the electroplating wastewater generally comprises a biological method, a physical method, a chemical method and the like, and the electroplating wastewater containing zinc and nickel is mostly treated by adopting the biological method, wherein the working principle is that microorganisms are utilized to decompose heavy metal substances in the electroplating wastewater, and in the specific operation process, the pH value of the electroplating wastewater is firstly adjusted, then the electroplating wastewater is introduced into a reaction tank main body, microorganism bacteria are added into the reaction tank main body, then the electroplating wastewater and the microorganisms are uniformly mixed by a stirring mechanism, and then the microorganisms react in the electroplating wastewater for a period of time.
However, in the related art, in order to maximize the decomposition effect of the microorganisms, it is necessary to precisely control the addition amount of the microorganisms so that the amount of the microorganisms contained in each liter of wastewater is maintained within a set range value, but since the conventional mixing manner of the electroplating wastewater and the microorganisms is to complete the one-time addition of both the electroplating wastewater and the microorganisms, and the amount of the electroplating wastewater is far greater than the addition amount of the microorganisms, after the microorganism bacteria are added, the microorganisms are difficult to uniformly distribute in the electroplating wastewater in a short time, not only long-time stirring is required, but also large deviation exists in the amount of the microorganisms contained in each liter of wastewater, which is unfavorable for the purification treatment of the electroplating wastewater by the microorganisms.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a biological vein breaking treatment process for zinc-nickel wastewater.
In order to achieve the above purpose, the invention adopts the following technical scheme: a biological vein-breaking treatment process for zinc-nickel wastewater comprises the following operation steps:
s1, homogenizing zinc-nickel wastewater;
s2, according to the actual acidity condition of the zinc-nickel wastewater, regulating the pH value of the zinc-nickel wastewater;
s3, conveying the zinc-nickel wastewater with the pH value adjusted to a biochemical reaction device, and simultaneously, accurately adding biological bacteria to the zinc-nickel wastewater in batches through the biochemical reaction device to perform biochemical reaction treatment on the zinc-nickel wastewater;
s4, conveying the zinc-nickel wastewater subjected to biochemical treatment to a decomplexing tower, regulating the pH value of the zinc-nickel wastewater again, and carrying out decomplexing treatment on the zinc-nickel wastewater;
s5, sequentially adding the zinc-nickel wastewater subjected to the complexation breaking treatment into an aeration tank, a coagulation tank and a sedimentation tank to perform impurity removal treatment and mud-water separation treatment respectively;
the biochemical reaction device used in the S3 comprises a reaction tank main body, wherein a waste water inlet is formed in the top of the reaction tank main body, and a solution introducing mechanism for adding zinc-nickel waste water and biological bacteria mixed solution to the reaction tank main body is arranged at the position, corresponding to the waste water inlet, of the top of the reaction tank main body;
The solution introducing mechanism comprises a protective shell fixedly arranged at the top of the reaction tank main body, a driving motor is fixedly arranged on the bottom wall of the protective shell, a rotating part which is arranged along the horizontal direction is fixedly connected to the output end of the driving motor, a plurality of solution mixing parts which are radially arranged along the rotating part and have stirring function are uniformly distributed on the rotating part, a substance adding part which is used for respectively and quantitatively adding zinc-nickel wastewater and biological bacteria into the solution mixing parts is arranged on the protective shell, after one of the solution mixing parts rotates to the output end position of the substance adding part, the substance adding part starts to respectively add quantitative zinc-nickel wastewater and biological bacteria into the solution mixing parts, and after the zinc-nickel wastewater and biological bacteria in the solution mixing parts reach the set quantity, the solution mixing parts can trigger the driving motor to rotate, so that the position of the solution mixing parts is adjusted.
Preferably, a pressing switch opposite to the output end of the material adding component is fixedly arranged on the bottom wall of the protective shell, the pressing switch is a starting switch of the driving motor, the solution mixing component comprises an outer cylinder body which is vertically and fixedly arranged on the rotating piece, a solution containing cylinder with a non-circular inner cavity is slidably arranged in the inner cavity of the outer cylinder body, a plurality of limit sliding blocks which are slidably connected with the inner side wall of the outer cylinder body are uniformly circumferentially distributed on the inner side wall of the solution containing cylinder, a supporting spring is fixedly arranged between the bottom of the limit sliding blocks and the inner side wall of the outer cylinder body, a discharge pipeline with an electromagnetic valve is communicated with the bottom of the solution containing cylinder, the output end of the discharge pipeline vertically and downwards passes through the outer cylinder body, the solution mixing component further comprises a plurality of supporting pieces, the supporting pieces are correspondingly and fixedly arranged at the bottoms of the outer cylinder body, and the bottoms of the supporting pieces are fixedly provided with light emitters;
When the solution quantity in one of the solution containing cylinders reaches a set quantity, the output end of the discharge pipeline is just enabled to trigger the pressing switch to start, a first light-sensitive switch for controlling the driving motor to be closed is fixedly arranged at the upper end of the inner wall side of the wastewater inlet, and when one of the solution mixing components rotates to a position right above the wastewater inlet, the solution mixing component is just enabled to trigger the first light-sensitive switch to start.
Preferably, the solution mixing component further comprises a stirring component for stirring and mixing the solution in the solution containing barrel, the stirring component comprises a plurality of gear pieces and a toothed ring horizontally and fixedly arranged on the bottom wall of the protective shell, the plurality of gear pieces are correspondingly and horizontally rotatably arranged at the bottoms of the plurality of outer barrels and are positioned above the supporting piece, the toothed ring is arranged right below the rotating piece in parallel and is positioned on the same central axis with the driving motor, and the plurality of gear pieces are meshed with the toothed ring;
the center of the gear piece is vertically and slidably provided with a first multi-edge rod, the top end of the first multi-edge rod upwards penetrates through the bottom of the outer cylinder in a sliding mode, the top end of the first multi-edge rod is fixedly provided with a driving connecting rod with a spiral groove, the driving connecting rod is positioned in the solution containing cylinder, the bottom end of the driving connecting rod is rotationally connected with the bottom wall of the solution containing cylinder, the driving connecting rod is internally and coaxially provided with a rotating rod in a sliding mode, the top end of the rotating rod penetrates through the top end of the driving connecting rod in a sliding mode, a plurality of stirring blades are evenly hinged to the upper end of the rotating rod in the circumferential direction, the upper end of the driving connecting rod is slidably sleeved with a lifting sliding sleeve, the inner side wall of the lifting sliding sleeve is fixedly provided with a sliding shaft which is slidably connected with the spiral groove, the outer side of the lifting sliding sleeve is sleeved with a connecting spring positioned at the bottom of the lifting sliding sleeve, the outer side of the lifting sliding sleeve is fixedly provided with a limiting scraping ring body which is slidably connected with the inner side wall of the solution containing cylinder, and the inner ring face of the limiting scraping ring body is coaxially rotationally provided with a connecting piece;
The upper end of connecting the commentaries on classics piece and the upper end fixed mounting of dwang, support piece's on the surface side by side rotate install first gear and second gear, just the second gear meshes with first gear and ring gear respectively, first gear is located the gear piece under, the bottom fixed mounting of dwang has the many arriss pole of second, the bottom of many arriss pole runs through the gear piece downwards after with the central point of first gear put slip through connection, support piece's bottom corresponds the many arriss pole bottom direction of second has been seted up and has been let down the mouth.
Preferably, the upper surface of stirring leaf is provided with a plurality of striking subassemblies side by side, striking subassembly includes fixed mounting at the dead lever of stirring leaf upper surface, the upper end slidable mounting of dead lever has the impact body that up and down terminal surface is the conical surface, the upper end of dead lever just is located the internal cover of impact and is equipped with compression spring.
Preferably, the material adding part comprises a waste water outlet pipe with an electromagnetic valve, a biological bacteria adding tank, a plurality of liquid level sensors and a second light-sensitive switch, wherein the water outlet end of the waste water outlet pipe is downwards opened towards the upper end of the solution containing tube, the waste water outlet pipe and the biological bacteria adding tank are fixedly installed on the inner side wall of the protective shell, the output end of the biological bacteria adding tank is downwards opened towards the upper end of the solution containing tube, the second light-sensitive switch is fixedly installed at the top of the pressing switch outer shell, the liquid level sensors are correspondingly and fixedly installed at the upper ends of the inner side wall of the solution containing tube, the electromagnetic valves on the biological bacteria adding tank and the waste water outlet pipe are controlled by the same controller, and the second light-sensitive switch is a trigger switch of the biological bacteria adding tank and the electromagnetic valve on the waste water outlet pipe.
Preferably, after the liquid level sensor detects that the liquid level of the solution in the solution containing barrel reaches a set position, the liquid level sensor sends a signal to the controller, so that the electromagnetic valve on the biological bacteria adding tank and the wastewater delivery pipe is closed, and when the solution mixing component moves to a position right above the second light-sensing switch, the second light-sensing switch can be triggered to start the electromagnetic valve on the wastewater delivery pipe.
Preferably, the inner cavity of the solution containing cylinder is of an octagonal cavity structure, and the lower end of the inner cavity of the solution containing cylinder is of a truncated cone-shaped structure.
Preferably, the first polygonal rod and the second polygonal rod are both in a regular hexagonal rod structure, and the radius of the gear piece is larger than that of the first gear.
Preferably, a rotating motor is fixedly arranged on one side of the reaction tank main body, and a mixing stirring piece horizontally arranged in the reaction tank main body is fixedly arranged at the output end of the rotating motor.
Preferably, the top of the reaction tank main body is detachably provided with a top cover, and one side of the reaction tank main body is communicated with a drainage pipeline.
Compared with the prior art, the invention has the following beneficial effects:
The biological reaction device provided by the invention can be used as a reaction container for zinc-nickel wastewater complexation treatment, meanwhile, a solution introducing mechanism is arranged to realize the multi-batch small-quantity mixing function of zinc-nickel wastewater and biological bacteria, and a substance adding component is used for respectively adding zinc-nickel wastewater and biological bacteria into a single solution mixing component according to a set ratio of zinc-nickel wastewater to biological bacteria, so that the mixing dosage of the zinc-nickel wastewater and biological bacteria is reduced, the zinc-nickel wastewater and the biological bacteria can be better mixed, the biological bacteria content in each liter of zinc-nickel wastewater can be favorably controlled within a required range value, the effect of the microorganism on the zinc-nickel wastewater purification treatment is obviously improved, and the biological complexation treatment requirement of the zinc-nickel wastewater is better met;
in addition, in the process of replacing the solution mixing component, the solution mixing component uniformly mixes the zinc-nickel wastewater and the biological bacteria, so that the traditional one-time mixing and adding mode is changed, and a small amount of the zinc-nickel wastewater and the biological bacteria are mixed in a plurality of batches, so that the mixing time of the zinc-nickel wastewater and the biological bacteria is shortened, the biological bacteria can be better diffused in a small amount of the zinc-nickel wastewater, and the mixing precision of the biological bacteria and the zinc-nickel wastewater is improved;
The solution introducing mechanism can be adjusted according to actual conditions in the process of adding the solution into the biological reaction tank, so that controllability of zinc-nickel wastewater and biological bacteria is improved, and the solution introducing mechanism is more beneficial to accurately controlling the biological bacteria in each liter of zinc-nickel wastewater within a required range.
Drawings
Fig. 1 is a flow chart of a biological vein-breaking treatment process of zinc-nickel wastewater.
FIG. 2 is a schematic structural diagram of a biochemical reaction apparatus according to the present invention.
FIG. 3 is a plan view of the biochemical reaction apparatus shown in FIG. 2.
Fig. 4 is a cross-sectional view of the A-A plane shown in fig. 3.
Fig. 5 is a partial enlarged view of the region a shown in fig. 4.
Fig. 6 is a schematic structural view of a solution introducing mechanism according to the present invention.
Fig. 7 is a schematic view showing a structure between a rotating member and a solution mixing section according to the present invention.
Fig. 8 is a sectional view of a solution mixing section provided by the present invention.
Fig. 9 is a schematic view of the structure between the solution holding cylinder and the stirring assembly provided by the invention.
Fig. 10 is a schematic view of the structure between the support and the stirring assembly provided by the invention.
FIG. 11 is a schematic view of the structure of the rotating shaft, the second polygonal shaft, the stirring blade, the connecting rotating member and the striking assembly according to the present invention.
Fig. 12 is a schematic structural view of the limiting scraping ring body, the driving connecting rod, the first polygonal rod and the gear member provided by the invention.
Fig. 13 is a schematic structural view between a driving connecting rod and a lifting sliding sleeve.
Fig. 14 is a cut-away view of a strike assembly provided by the present invention.
In the figure: 1. A reaction tank main body; 2. a waste water inlet; 3. a solution introduction mechanism; 31. a protective housing; 32. a driving motor; 33. a rotating member; 34. a solution mixing part; 341. an outer cylinder; 342. a solution holding cylinder; 343. a limit sliding block; 344. a support spring; 345. a discharge pipe; 346. a first light-sensitive switch; 347. a stirring assembly; 3472. a gear member; 3473. a toothed ring; 3474. a first polygonal rod; 3475. a drive connection rod; 3476. a rotating lever; 3477. stirring the leaves; 3478. lifting sliding sleeve; 3479. a sliding shaft; 34710. a connecting spring; 34711. limiting scraping ring body; 34712. a connecting rotating member; 34713. a first gear; 34714. a second gear; 34715. a second polygonal rod; 34716. a spiral groove; 348. an impact assembly; 3481. a fixed rod; 3482. a striker; 3483. a compression spring; 349. a support; 3410. a light emitter; 3411. a yielding port; 35. a substance adding part; 351. a waste water delivery pipe; 352. a biological bacteria adding tank; 353. a liquid level sensor; 354. a second light-sensitive switch; 36. pressing the switch; 4. a rotating motor; 5. a mixing stirring member; 6. a top cover; 7. and a drainage pipeline.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
Referring to fig. 1 in combination, the biological vein-breaking treatment process for zinc-nickel wastewater includes the following steps:
s1, homogenizing zinc-nickel wastewater;
s2, according to the actual acidity condition of the zinc-nickel wastewater, regulating the pH value of the zinc-nickel wastewater;
s3, conveying the zinc-nickel wastewater with the pH value adjusted to a biochemical reaction device, and simultaneously, accurately adding biological bacteria to the zinc-nickel wastewater in batches through the biochemical reaction device to perform biochemical reaction treatment on the zinc-nickel wastewater;
s4, conveying the zinc-nickel wastewater subjected to biochemical treatment to a decomplexing tower, regulating the pH value of the zinc-nickel wastewater again, and carrying out decomplexing treatment on the zinc-nickel wastewater;
s5, sequentially adding the zinc-nickel wastewater subjected to the complexation breaking treatment into an aeration tank, a coagulation tank and a sedimentation tank to perform impurity removal treatment and mud-water separation treatment respectively;
referring to fig. 2 to 14 in combination, the biochemical reaction apparatus used in S3 includes a reaction tank main body 1, a wastewater inlet 2 is formed at the top of the reaction tank main body 1, and a solution introducing mechanism 3 for adding a mixed solution of zinc-nickel wastewater and biological bacteria to the reaction tank main body 1 is disposed at a position corresponding to the wastewater inlet 2 at the top of the reaction tank main body 1;
The solution introducing mechanism 3 comprises a protective shell 31 fixedly arranged at the top of the reaction tank main body 1, a driving motor 32 is fixedly arranged on the bottom wall of the protective shell 31, a rotating piece 33 arranged along the horizontal direction is fixedly connected to the output end of the driving motor 32, a plurality of solution mixing parts 34 arranged along the radial direction of the rotating piece 33 are uniformly distributed on the circumference of the rotating piece 33, a substance adding part 35 for respectively and quantitatively adding zinc-nickel wastewater and biological bacteria to the solution mixing parts 34 is arranged on the protective shell 31, after one of the solution mixing parts 34 rotates to the position of the output end of the substance adding part 35, the substance adding part 35 starts to respectively add quantitative zinc-nickel wastewater and biological bacteria to the solution mixing parts 34, and after the zinc-nickel wastewater and biological bacteria in the solution mixing parts 34 reach the set quantity, the solution mixing parts 34 can trigger the driving motor 32 to rotate, so that the position of the solution mixing parts 34 is adjusted;
in order to solve the problem that when biological bacteria are added into electroplating wastewater, the biological bacteria content in the electroplating wastewater is uneven, the biochemical reaction device is arranged, when the biochemical reaction device is used, a zinc-nickel wastewater conveying pipeline is connected with a solution introducing mechanism 3, required biological bacteria is added into the solution introducing mechanism 3, then the solution introducing mechanism 3 is started, zinc-nickel wastewater and biological bacteria are quantitatively added into a solution mixing part 34 positioned below the output end according to the set ratio of zinc-nickel wastewater to biological bacteria, when the solution in the solution mixing part 34 reaches the set amount, a substance adding part 35 is automatically closed, the solution mixing part 34 can just trigger a driving motor 32 to rotate, a supporting part 349 is driven to rotate, the next solution mixing part 34 is driven to rotate to the output end position of the substance adding part 35, in the process, the zinc-nickel wastewater and the biological bacteria can be stirred and mixed by the solution mixing component 34 so as to be uniformly mixed, after the next solution mixing component 34 rotates to the output end position of the substance adding component 35, the substance adding component 35 is started again at the moment, and zinc-nickel wastewater and biological bacteria are respectively added to the solution mixing component 34, the operation is repeated until the first solution mixing component 34 filled with the mixed solution rotates to the position right above the wastewater inlet 2, the solution mixing component 34 automatically discharges the mixed solution downwards, so that the mixed solution enters the biological reaction tank main body 1 from the wastewater inlet 2, the repeated operation can be realized, the mixed solution of zinc-nickel wastewater and biological bacteria is continuously added to the biological reaction tank until the maximum storage capacity of the biological reaction tank main body 1 is reached, the substance adding part 35 and the solution mixing part 34 can be turned off;
The biological reaction device can be used as a reaction container for zinc-nickel wastewater complexation treatment, meanwhile, the solution introducing mechanism 3 is arranged, so that the multi-batch and small-quantity mixing function of zinc-nickel wastewater and biological bacteria can be realized, the substance adding component 35 respectively adds zinc-nickel wastewater and biological bacteria into the single solution mixing component 34 according to the set proportion of the zinc-nickel wastewater and the biological bacteria, in the process of replacing the solution mixing component 34, the solution mixing component 34 uniformly mixes the zinc-nickel wastewater and the biological bacteria, the traditional one-time mixing adding mode is changed, the mixing mode of the zinc-nickel wastewater and the biological bacteria in a small quantity and multiple batches is adopted, the mixing time of the zinc-nickel wastewater and the biological bacteria is shortened, the effective and sufficient mixing of the zinc-nickel wastewater and the biological bacteria is promoted, the controllability of the zinc-nickel wastewater and the biological bacteria is increased according to the actual situation in the adding process of the biological reaction tank, the biological bacteria content of each liter of the zinc-nickel wastewater is more favorably and accurately controlled within a required range value, the effect of purifying the zinc-nickel wastewater treatment of microorganisms is further remarkably improved, and the biological wastewater treatment requirements on zinc-nickel wastewater biological complexation treatment are better met.
As an embodiment of the present invention, a pressing switch 36 opposite to an output end of a material adding part 35 is fixedly installed on a bottom wall of a protective housing 31, the pressing switch 36 is a start switch of a driving motor 32, a solution mixing part 34 includes an outer cylinder 341 vertically and fixedly installed on a rotating part 33, a solution containing cylinder 342 with a non-circular inner cavity is slidably installed in an inner cavity of the outer cylinder 341, a plurality of limit blocks 343 slidingly connected with the inner side wall of the outer cylinder 341 are uniformly circumferentially distributed on an inner side wall of the solution containing cylinder 342, a supporting spring 344 is fixedly installed between a bottom of the limit blocks 343 and the inner side wall of the outer cylinder 341, a discharge pipeline 345 with an electromagnetic valve is communicated with a bottom of the solution containing cylinder 342, an output end of the discharge pipeline 345 is vertically downward arranged after movably penetrating through the outer cylinder 341, the solution mixing part 34 further includes a plurality of supporting pieces 349, the supporting pieces 349 are correspondingly and fixedly installed at the bottom of the plurality of outer cylinders 341, and light emitters 3410 are fixedly installed at the bottoms of the supporting pieces 349;
When the solution amount in one of the solution containing barrels 342 reaches a set amount, the solution containing barrel 342 moves downwards under the action of gravity, so that the output end of the discharge pipeline 345 presses the trigger push switch 36 to start the driving motor 32, the upper end of the inner wall side of the wastewater inlet 2 is fixedly provided with a first light sensation switch 346 for controlling the driving motor 32 to be closed, and when one of the adjacent solution mixing components 34 rotates to a position right above the wastewater inlet 2, the solution mixing component 34 just triggers the first light sensation switch 346 to start;
in the process of adding zinc-nickel wastewater and biological bacteria to the solution mixing component 34, as the solution in the solution containing barrel 342 is continuously increased, the solution containing barrel 342 can be gradually moved downwards, the limit sliding block 343 synchronously compresses the supporting spring 344, the discharge pipeline 345 also moves downwards along with the solution containing barrel 342 and gradually approaches to the pressing switch 36, after the solution in the solution containing barrel 342 reaches a set amount, the bottom end of the discharge pipeline 345 is just contacted with the pressing switch 36, the pressing switch 36 is triggered to start, the next solution mixing component 34 is started to continuously add zinc-nickel wastewater and biological bacteria mixture, when the solution mixing component 34 is replaced, the driving motor 32 rotates, the rotating piece 33 can drive the solution mixing components 34 on the solution mixing component 34 to rotate together until the next solution mixing component 34 rotates to the position below the material adding component 35, at this time, since the position of the first light sensing switch 346 senses the light emitted by the light emitter 3410 above the first light sensing component 34, the rotation of the solution mixing component 34 is determined, the driving motor is triggered to start to rotate, the rotation of the solution mixing component 34 is stopped, and then the solution mixing component 34 is stopped to continuously rotate, the solution mixing component 34 is continuously rotated, and the biological bacteria can be added by the rotation of the material adding component 35 is continuously rotated, and the next solution mixing component 34 is continuously rotated, and the rotation component is continuously added by the material through the rotation of the rotation component is continuously;
Through evenly setting up a plurality of solution mixing parts 34 on rotating member 33 circumference, all be used for splendid attire equivalent zinc nickel waste water and biological fungus mixed solution, use with material adding part 35 cooperation, can realize that the equal zinc nickel waste water of multiclot and biological fungus add the operation, regard as the splendid attire container with little volume solution splendid attire section of thick bamboo 342, the volume that zinc nickel waste water and biological fungus once mix, be favorable to biological fungus abundant and zinc nickel waste water to mix, simultaneously, set up solution splendid attire section of thick bamboo 342 and outer barrel 341 into sliding connection, and cooperate to set up spacing slider 343, supporting spring 344, the output pipeline, push switch 36 and first light sense switch 346, can be after the solution in solution splendid attire section of thick bamboo 342 reaches the splendid attire volume of settlement, synchronous trigger driving motor 32 rotates and closes, in order to realize automatic change solution mixing part 34 function, unnecessary too much artificial interference, zinc nickel waste water and biological fungus add the precision.
As an embodiment of the present invention, the solution mixing part 34 further includes a stirring assembly 347 for stirring and mixing the solution inside the solution containing cylinder 342, the stirring assembly 347 includes a plurality of gear members 3472 and a toothed ring 3473 horizontally and fixedly installed at the bottom wall of the protective housing 31, the plurality of gear members 3472 are correspondingly and horizontally rotatably installed at the bottoms of the plurality of outer cylinders 341 and above the supporting member 349, the toothed ring 3473 is disposed in parallel under the rotating member 33 and on the same central axis as the driving motor 32, and the plurality of gear members 3472 are engaged with the toothed ring 3473;
The center of the gear member 3472 is vertically and slidably provided with a first polygonal rod 3474, the top end of the first polygonal rod 3474 is slidably and upwardly penetrating through the bottom of the outer cylinder 341, the top end of the first polygonal rod 3474 is coaxially and fixedly provided with a driving connecting rod 3475 with a spiral groove 34716 positioned in the solution containing cylinder 342, the spiral groove 34716 comprises a circle of spiral groove and an inclined groove, the inclined groove connects the upper end and the lower end of the spiral groove together, the spiral groove 34716 forms a closed groove structure, the bottom end of the driving connecting rod 3475 is rotatably connected with the bottom wall of the solution containing cylinder 342, the inner center of the driving connecting rod 3475 is slidably provided with a rotating rod 3476, the top end of the rotating rod 3476 is slidably and rotatably penetrating through the top end of the driving connecting rod 3475, the upper end of the driving connecting rod 3475 is circumferentially and uniformly hinged with a stirring blade 3477, the upper end of the driving connecting rod 3475 is slidably sleeved with a lifting sliding sleeve 3478, the inner side wall of the lifting sliding sleeve 3478 is fixedly provided with a sliding shaft 3479 which is in sliding connection with the spiral groove 34716, one end of the sliding shaft 3479, which is in contact with the spiral groove 34716, is arc-shaped, so that contact friction between the sliding shaft and the sliding shaft is reduced, resistance in the lifting process of the lifting sliding sleeve 3478 is reduced, the outer side of the lifting sliding sleeve 3478 is sleeved with a connecting spring 34710 positioned at the bottom of the lifting sliding sleeve 3478, the outer side of the lifting sliding sleeve 3478 is fixedly provided with a limiting scraping ring body 34711 which is in sliding connection with the inner side wall of the solution containing barrel 342, the outer ring surface of the limiting scraping ring body can be provided with a rubber layer, abrasion of the limiting scraping ring body to the inner side wall of the solution containing barrel 342 is reduced, the inner ring surface of the limiting scraping ring body 34711 is coaxially and rotatably provided with a connecting rotating member 34712, and the upper end of the connecting rotating member 34712 is fixedly arranged with the upper end of the rotating rod 3476;
The connecting rotating member 34712 is used for establishing connection between the lifting sliding sleeve 3478 and the rotating rod 3476, when the rotating rod 3476 can lift along with the lifting sliding sleeve 3478, the bottom wall of the supporting member 349 is provided with a first gear 34713 and a second gear 34714 in a parallel rotating manner, the second gear 34714 is respectively meshed with the first gear 34713 and the toothed ring 3473, the first gear 34713 is positioned right below the gear member 3472, the bottom end of the rotating rod 3476 is fixedly provided with a second multi-edge rod 34715, the bottom end of the second multi-edge rod 34715 penetrates through the gear member 3472 downwards and then is connected with the central position of the first gear 34713 in a sliding penetrating manner, the rotating rod 3476 can rotate along with the first gear 34713 by adopting the multi-edge rod, and can vertically slide on the first gear 34713, and the bottom of the supporting member 349 is provided with a position outlet 3411 corresponding to the bottom end direction of the second multi-edge rod 34715;
after the zinc-nickel wastewater and biological bacteria are added to the solution mixing part 34 below the stirring component 347 through the substance adding part 35, in order to enable the zinc-nickel wastewater and the biological bacteria to be uniformly mixed and reduce the subsequent mixing time, the stirring component 347 is arranged to stir and mix the zinc-nickel wastewater and the biological bacteria in the solution containing cylinder 342, and when the stirring component 347 is used, the solution mixing part 34 is replaced by the operation of the driving motor 32 at the moment, the plurality of solution mixing parts 34 can be synchronously driven to rotate around the toothed ring 3473, so that the second gear 34714 can drive the first gear 34713 to rotate, and the gear piece 3472 also rotates along the outer side of the toothed ring 3473, at the moment, the first gear 34713 can drive the driving connecting rod 3475, the rotating rod 3476 and the stirring blade 3477 to rotate together, and the zinc-nickel wastewater and the biological bacteria in the solution containing cylinder 342 can be stirred and mixed by the rotation action of the stirring blade 3477;
Meanwhile, the first polygonal rod 3474 and the driving connecting rod 3475 can be driven to rotate together through the rotation action of the gear piece 3472, the limiting scraping ring body 34711 is in sliding connection with the inner cavity of the solution containing barrel 342, so that the limiting sliding sleeve can not rotate along with the driving connecting rod 3475, and under the sliding connection action of the sliding shaft 3479 and the spiral groove 34716, the lifting sliding sleeve 3478 can slide downwards along the surface of the driving connecting rod 3475 at the same time, the bottom of the lifting sliding sleeve 3478 compresses the connecting spring 34710 to shrink until the sliding shaft 3479 moves to the lower end of the spiral groove 34716, at the moment, the sliding shaft 3479 is not blocked by the spiral groove 34716 any more, and can drive the lifting sliding to move upwards to reset under the elastic action of the connecting spring 34710, and in the lifting sliding sleeve 3478, the lifting sliding rod 3476, the stirring blade 3477 and the limiting scraping ring body 34711 can be driven to synchronously lift, so that the zinc-nickel waste water and biological bacteria in the solution containing barrel 342 can be mixed;
through setting up this stirring subassembly 347, can realize stirring leaf 3477 at the inside lift of solution splendid attire section of thick bamboo 342 and accompany the rotation function when the position is changed to driving motor 32 solution mixing element 34, can carry out the homogeneous mixing to solution splendid attire section of thick bamboo 342 zinc nickel waste water and biological fungus, and lift pivoted stirring leaf 3477 can stir zinc nickel waste water and the different degree of depth positions of biological fungus, be favorable to promoting stirring effect of stirring leaf 3477, simultaneously, set up upper and lower direction articulated stirring leaf 3477, follow the lift sliding sleeve 3478 in-process at stirring leaf 3477, through stirring leaf 3477 articulated on the top of dwang 3476, the effect of articulated mode concrete realization is the effect at the effect of external force, can make stirring leaf 3477 upper and lower direction free swing, the stirring effect to surrounding solution when having strengthened stirring leaf 3477 and being in same high position, can reduce the follow-up stirring time in reaction tank main part 1 main part, in addition through setting up spacing scraping ring body 34711 and solution splendid attire section of thick bamboo 342 cooperation slip, not only to lifting sliding sleeve 3478, scrape 34711 and the manual clearance has been removed to follow-up the manual clearance of the effect of carrying out the sliding barrel 342.
As an embodiment of the invention, a plurality of striking assemblies 348 are arranged on the upper surface of the stirring blade 3477 side by side, the striking assemblies 348 comprise fixed rods 3481 fixedly arranged on the upper surface of the stirring blade 3477, striking bodies 3482 with conical upper and lower end surfaces are slidably arranged at the upper ends of the fixed rods 3481, and compression springs 3483 are sleeved in the striking bodies 3482 at the upper ends of the fixed rods 3481;
after biological bacteria are added to zinc-nickel wastewater, in order to increase the activity of the biological bacteria, an impact assembly 348 is arranged on a stirring blade 3477 to impact the liquid level of the solution, so that the contact area of the impact body 3482 with the external environment is increased, the dissolution amount of oxygen can be increased, the activity of the biological bacteria is promoted, the impact assembly 348 can drive a fixed rod 3481 and the impact body 3482 to synchronously move up and down along with the up-down movement of the stirring blade 3477 along with the up-down sliding sleeve 3478 when the stirring blade 3477 is in the initial position of the upper end of a driving connecting rod 3475, and the height of the impact body 3482 is higher than the liquid level of the maximum holding capacity of the solution holding cylinder 342, so that the impact body 3482 can impact the liquid level downwards from above the liquid level of the solution when the up-down sliding sleeve 3478 is moved, the water bloom can be generated on the liquid level, the resistance generated by the solution can be reduced when the impact body 3482 is moved downwards to the impact the surface of the solution, the contact area with the solution is increased, and the contact area with the solution is increased, so that the contact area with the oxygen can be increased with the external air;
In the process of up-and-down swinging of the stirring blade 3477, the impacting body 3482 can move upwards along the surface of the fixed rod 3481 and extrude the compression spring 3483, when the impacting body 3482 impacts the liquid level again, the impacting body 3482 can be accelerated to a certain extent under the elastic action of the compression spring 3483, so that the impact effect on the liquid level of the solution is increased, the water spray generated by impact is further increased, the dissolved oxygen of the solution is increased, the activity of biological bacteria is better promoted, and the treatment effect on zinc-nickel wastewater is better.
As an embodiment of the present invention, the material adding part 35 includes a waste water outlet pipe 351 and a bio-fungus adding tank 352 with electromagnetic valves, a plurality of liquid level sensors 353 and a second light sensing switch 354, wherein the water outlet end of the waste water outlet pipe 351 is opened downwards towards the upper end of the solution containing tube 342, the waste water outlet pipe 351 and the bio-fungus adding tank 352 are fixedly installed on the inner side wall of the protective housing 31, the output end of the bio-fungus adding tank 352 is opened downwards towards the upper end of the solution containing tube 342, the second light sensing switch 354 is fixedly installed on the top of the housing of the pressing switch 36, the liquid level sensors 353 are correspondingly and fixedly installed on the upper ends of the inner side walls of the solution containing tubes 342, the electromagnetic valves on the bio-fungus adding tank 352 and the waste water outlet pipe 351 are controlled by the same controller, and the second light sensing switch 354 is a trigger switch of the electromagnetic valves on the bio-fungus adding tank 352 and the waste water outlet pipe 351;
When the liquid level sensor 353 detects that the liquid level of the solution in the solution containing barrel 342 reaches the set position, the liquid level sensor 353 sends a signal to the controller, so that the solenoid valves on the biological bacteria adding tank 352 and the waste water outlet pipe 351 are closed, and when the solution mixing component 34 moves to the position right above the second light sensing switch 354, the second light sensing switch 354 senses the light emitted by the light emitter 3410 at the corresponding position right above, and the second light sensing switch 354 can be triggered to start the solenoid valve on the waste water outlet pipe 351 at the corresponding position;
when the material adding part 35 is used for adding zinc-nickel wastewater and biological bacteria to the solution mixing part 34 below the material adding part, the existence of the solution mixing part 34 above the material adding part is detected by the second light-sensitive switch 354, and a signal is sent to the controller, so that the controller sequentially controls the electromagnetic valve on the wastewater delivery pipe 351 at the corresponding position and the electromagnetic valve on the biological bacteria adding tank 352 to be opened, the liquid level data in the solution containing barrel 342 is continuously fed back by the liquid level sensor 353, when the zinc-nickel wastewater reaches the set amount, the electromagnetic valve on the wastewater delivery pipe 351 is controlled by the controller to be closed, the electromagnetic valve on the biological bacteria adding tank 352 is controlled to be opened, the liquid level condition is monitored by the liquid level sensor 353, and the electromagnetic valve on the biological bacteria adding tank 352 is controlled by the controller to be closed after the set liquid level value is reached, thereby realizing quantitative and accurate zinc-nickel wastewater and biological bacteria adding functions in the solution containing barrel 342, being beneficial to reducing the content error of biological bacteria in the zinc-nickel wastewater, and better promoting the purification treatment of the zinc-nickel wastewater by the biological bacteria.
As an embodiment of the present invention, the number of the solution mixing parts 34 is the same as the number of the supporting parts 349 and the gear parts 3472, and the driving motor 32 is provided as a gear motor, so that the supporting parts 349 can drive the solution mixing parts 34 to rotate slowly.
As an embodiment of the present invention, the inner cavity of the solution containing barrel 342 has an octagonal cavity structure, and is adapted to the limit scraping ring 34711, so as to prevent the limit scraping ring 34711 from rotating in the solution containing barrel 342, and the lower end of the inner cavity of the solution containing barrel 342 has a truncated cone structure, so that the solution is convenient to collect downwards.
As an embodiment of the present invention, the first polygonal rod 3474 and the second polygonal rod 34715 are each configured as a regular hexagonal rod, and the radius of the gear member 3472 is larger than that of the first gear 34713, so that differential rotation between the driving connection rod 3475 and the rotation rod 3476 can be achieved.
As an embodiment of the invention, a rotary motor 4 is fixedly arranged on one side of the reaction tank body 1, and a mixing and stirring piece 5 horizontally arranged inside the reaction tank body 1 is fixedly arranged at the output end of the rotary motor 4.
As an embodiment of the invention, a top cover 6 is detachably arranged at the top of the reaction tank main body 1, and a drainage pipeline 7 is communicated with one side of the reaction tank main body 1.
The working principle of the solution introducing mechanism in the invention is as follows:
step one: the solution introducing mechanism 3 starts to quantitatively add zinc-nickel wastewater and biological bacteria simultaneously in a set ratio of the zinc-nickel wastewater to the biological bacteria in the solution mixing part 34 positioned right below the solution introducing mechanism;
step two: when the solution in the solution mixing part 34 reaches a set amount, the substance adding part 35 is automatically closed, so that the solution mixing part 34 just can trigger the driving motor 32 to rotate, the supporting piece 349 is driven to rotate, the next solution mixing part 34 is driven to rotate to the position of the output end of the substance adding part 35, and in the process, the solution mixing part 34 also stirs and mixes zinc-nickel wastewater and biological bacteria;
step three: and repeating the second operation until the mixed solution of zinc-nickel-loaded wastewater and biological bacteria moves to a position right above the wastewater inlet 2, and automatically discharging the mixed solution downwards by the solution mixing component 34, so that the mixed solution enters the biological reaction tank main body 1 from the wastewater inlet 2 until the maximum storage capacity of the biological reaction tank main body 1 is reached, and then closing the substance adding component 35 and the solution mixing component 34.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, but rather, the foregoing embodiments and description illustrate the principles of the invention, and that various changes and modifications may be effected therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (10)
1. The biological vein-breaking treatment process for the zinc-nickel wastewater is characterized by comprising the following operation steps of:
s1, homogenizing zinc-nickel wastewater;
s2, according to the actual acidity condition of the zinc-nickel wastewater, regulating the pH value of the zinc-nickel wastewater;
s3, conveying the zinc-nickel wastewater with the pH value adjusted to a biochemical reaction device, and simultaneously, accurately adding biological bacteria to the zinc-nickel wastewater in batches through the biochemical reaction device to perform biochemical reaction treatment on the zinc-nickel wastewater;
s4, conveying the zinc-nickel wastewater subjected to biochemical treatment to a decomplexing tower, regulating the pH value of the zinc-nickel wastewater again, and carrying out decomplexing treatment on the zinc-nickel wastewater;
s5, sequentially adding the zinc-nickel wastewater subjected to the complexation breaking treatment into an aeration tank, a coagulation tank and a sedimentation tank to perform impurity removal treatment and mud-water separation treatment respectively;
the biochemical reaction device used in the S3 comprises a reaction tank main body (1), wherein a waste water inlet (2) is formed in the top of the reaction tank main body (1), and a solution introducing mechanism (3) for adding zinc-nickel waste water and biological bacteria mixed solution to the reaction tank main body (1) is arranged at the position, corresponding to the waste water inlet (2), of the top of the reaction tank main body (1);
The solution introducing mechanism (3) comprises a protective shell (31) fixedly arranged at the top of the reaction tank main body (1), a driving motor (32) is fixedly arranged at the bottom wall of the protective shell (31), a rotating piece (33) arranged in the horizontal direction is fixedly connected to the output end of the driving motor (32), a plurality of solution mixing components (34) which are arranged along the radial direction and have stirring function are uniformly distributed on the rotating piece (33), a substance adding component (35) for respectively and quantitatively adding zinc-nickel wastewater and biological bacteria to the solution mixing components (34) is arranged on the protective shell (31), after one of the solution mixing components (34) rotates to the output end position of the substance adding component (35), the substance adding component (35) starts to respectively add quantitative zinc-nickel wastewater and biological bacteria to the solution mixing components (34), and after the zinc-nickel wastewater and the biological bacteria in the solution mixing components (34) reach a set quantity, the solution mixing components (34) can trigger the driving motor (32) to rotate, so that the solution mixing components (34) can realize the adjustment of the position of the solution mixing components (34).
2. The biological vein-breaking treatment process for zinc-nickel wastewater according to claim 1, wherein a pressing switch (36) opposite to the output end of the material adding part (35) is fixedly arranged on the bottom wall of the protective housing (31), the pressing switch (36) is a starting switch of the driving motor (32), the solution mixing part (34) comprises an outer cylinder (341) vertically and fixedly arranged on the rotating part (33), a solution containing cylinder (342) with a non-circular inner cavity is slidably arranged in the inner cavity of the outer cylinder (341), a plurality of limit sliding blocks (343) which are slidably connected with the inner side wall of the outer cylinder (341) are uniformly circumferentially distributed on the inner side wall of the solution containing cylinder (342), a supporting spring (344) is fixedly arranged between the bottom of the limit sliding blocks (343) and the inner side wall of the outer cylinder (341), the bottom of the solution containing cylinder (342) is communicated with a discharge pipeline (345) with an electromagnetic valve, the output end of the discharge pipeline (345) is vertically and downwardly arranged after movably penetrating through the outer cylinder (341), the solution mixing part (34) further comprises a plurality of supporting parts (349) which are correspondingly provided with a plurality of light emitting parts (349) arranged at the bottom of the bottoms (3410) of the supporting parts (3410);
When the solution amount in one of the solution containing barrels (342) reaches a set amount, the output end of the discharge pipeline (345) is just enabled to trigger the pressing switch (36) to be started, a first light-sensitive switch (346) for controlling the driving motor (32) to be closed is fixedly arranged at the upper end of the inner wall side of the wastewater inlet (2), and when one of the solution mixing components (34) rotates to a position right above the wastewater inlet (2), the solution mixing component (34) is just enabled to trigger the first light-sensitive switch (346) to be started.
3. The biological vein-breaking treatment process for zinc-nickel wastewater according to claim 2, wherein the solution mixing component (34) further comprises a stirring component (347) for stirring and mixing the solution in the solution containing barrel (342), the stirring component (347) comprises a plurality of gear pieces (3472) and a toothed ring (3473) horizontally and fixedly installed on the bottom wall of the protective shell (31), the plurality of gear pieces (3472) are correspondingly and horizontally installed at the bottoms of the plurality of outer barrels (341) and are located above the supporting piece (349), the toothed ring (3473) is arranged below the rotating piece (33) in parallel and is located on the same central axis with the driving motor (32), and the plurality of gear pieces (3472) are meshed with the toothed ring (3473);
The center position of the gear piece (3472) is vertically and slidably provided with a first polygonal rod (3474), the top end of the first polygonal rod (3474) upwards penetrates through the bottom of the outer cylinder body (341) in a sliding way, the top end of the first polygonal rod (3474) is coaxially and fixedly provided with a driving connecting rod (3475) with a spiral groove (34716) which is positioned inside the solution containing cylinder (342), the bottom end of the driving connecting rod (3475) is rotatably connected with the bottom wall of the solution containing cylinder (342), the inner end of the driving connecting rod (3475) is coaxially and slidably provided with a rotating rod (3476), the top end of the rotating rod (3476) penetrates through the top end of the driving connecting rod (3475) in a sliding way, a plurality of stirring blades (3477) are evenly hinged to the upper end of the rotating rod (3476) in a circumferential direction, the upper end of the driving connecting rod (3475) is slidably sleeved with a lifting sliding sleeve (3478), the inner side wall of the lifting sliding sleeve (3478) is fixedly provided with a sliding shaft (79) which is slidably connected with the spiral groove (34716), the lifting sliding sleeve (3478) is fixedly connected with the inner ring body (3484) which is fixedly connected with the inner side wall (34711) of the lifting sliding sleeve, the lifting sleeve (3478) which is fixedly connected with the inner side wall (34711), the upper end of the connecting rotating piece (34712) is fixedly arranged with the upper end of the rotating rod (3476);
First gear (34713) and second gear (34714) are installed to side by side rotation on the surface of support piece (349), just second gear (34714) respectively with first gear (34713) and ring gear (3473) mesh, first gear (34713) are located gear piece (3472) under, the bottom fixed mounting of dwang (3476) has second polygon pole (34715), the bottom of second polygon pole (34715) runs through behind gear piece (3472) downwards and the central point of first gear (34713) slides through connection, the bottom of support piece (349) corresponds second polygon pole (34715) bottom direction has seted up and has been put down mouth (3411).
4. The biological vein-breaking treatment process for zinc-nickel wastewater according to claim 3, wherein a plurality of striking assemblies (348) are arranged on the upper surface of the stirring blade (3477) side by side, each striking assembly (348) comprises a fixed rod (3481) fixedly arranged on the upper surface of the stirring blade (3477), striking bodies (3482) with conical upper and lower end surfaces are slidably arranged at the upper ends of the fixed rods (3481), and compression springs (3483) are sleeved in the striking bodies (3482) at the upper ends of the fixed rods (3481).
5. The zinc-nickel wastewater biological vein-breaking treatment process according to claim 2, wherein the material adding part (35) comprises a wastewater outlet pipe (351) with an electromagnetic valve and a biological bacteria adding tank (352), a plurality of liquid level sensors (353) and a second light sensation switch (354), the water outlet end of the wastewater outlet pipe (351) is downwards opened towards the upper end of the solution containing tank (342), the wastewater outlet pipe (351) and the biological bacteria adding tank (352) are fixedly installed on the inner side wall of the protective shell (31), the output end of the biological bacteria adding tank (352) is downwards opened towards the upper end of the solution containing tank (342), the second light sensation switch (354) is fixedly installed on the top of the outer shell of the pressing switch (36), the liquid level sensors (353) are correspondingly fixedly installed on the upper ends of the inner side walls of the solution containing tank (342), the electromagnetic valves on the biological bacteria adding tank (352) and the wastewater outlet pipe (351) are controlled by the same controller, and the second light sensation switch (354) is the electromagnetic valve on the biological bacteria adding tank (342).
6. The biological vein-breaking treatment process for zinc-nickel wastewater according to claim 5, wherein after the liquid level sensor (353) detects that the liquid level of the solution in the solution containing tube (342) reaches a set position, the liquid level sensor (353) sends a signal to a controller, so that electromagnetic valves on the biological bacteria adding tank (352) and the wastewater delivery tube (351) are closed, and when the solution mixing component (34) moves to a position right above the second light-sensing switch (354), the second light-sensing switch (354) can be triggered to enable the electromagnetic valve on the wastewater delivery tube (351) to be started.
7. The biological vein-breaking treatment process for zinc-nickel wastewater according to claim 2, wherein the inner cavity of the solution containing tube (342) is of an octagonal cavity structure, and the lower end of the inner cavity of the solution containing tube (342) is of a circular truncated cone structure.
8. A biological zinc-nickel wastewater treatment process according to claim 3, wherein the first polygonal rod (3474) and the second polygonal rod (34715) are both in a regular hexagonal rod structure, and the radius of the gear member (3472) is larger than that of the first gear (34713).
9. The biological vein-breaking treatment process for zinc-nickel wastewater according to claim 1, wherein a rotating motor (4) is fixedly arranged on one side of the reaction tank main body (1), and a mixing stirring piece (5) horizontally arranged inside the reaction tank main body (1) is fixedly arranged at the output end of the rotating motor (4).
10. The biological vein-breaking treatment process for zinc-nickel wastewater according to claim 1, wherein a top cover (6) is detachably arranged at the top of the reaction tank main body (1), and a drainage pipeline (7) is communicated with one side of the reaction tank main body (1).
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