CN117865411A - Reactor and method for treating landfill leachate reverse osmosis concentrated solution - Google Patents
Reactor and method for treating landfill leachate reverse osmosis concentrated solution Download PDFInfo
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- CN117865411A CN117865411A CN202410202885.7A CN202410202885A CN117865411A CN 117865411 A CN117865411 A CN 117865411A CN 202410202885 A CN202410202885 A CN 202410202885A CN 117865411 A CN117865411 A CN 117865411A
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- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 45
- 239000000149 chemical water pollutant Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000011282 treatment Methods 0.000 claims abstract description 143
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 103
- 238000004062 sedimentation Methods 0.000 claims abstract description 40
- 239000000126 substance Substances 0.000 claims abstract description 16
- 238000006298 dechlorination reaction Methods 0.000 claims abstract description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims description 28
- 239000012141 concentrate Substances 0.000 claims description 28
- 238000005086 pumping Methods 0.000 claims description 24
- 239000012528 membrane Substances 0.000 claims description 21
- 239000010865 sewage Substances 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000460 chlorine Substances 0.000 claims description 4
- 229910052801 chlorine Inorganic materials 0.000 claims description 4
- 239000003814 drug Substances 0.000 claims description 2
- 238000011221 initial treatment Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 28
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract description 18
- 229910052742 iron Inorganic materials 0.000 abstract description 15
- 238000006243 chemical reaction Methods 0.000 abstract description 10
- 239000007788 liquid Substances 0.000 abstract description 9
- 230000001404 mediated effect Effects 0.000 abstract description 5
- 229960005191 ferric oxide Drugs 0.000 abstract 1
- 230000009467 reduction Effects 0.000 description 11
- 239000002244 precipitate Substances 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- -1 iron ion Chemical class 0.000 description 5
- 239000013049 sediment Substances 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 241000510097 Megalonaias nervosa Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 231100000419 toxicity Toxicity 0.000 description 3
- 230000001988 toxicity Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000009615 deamination Effects 0.000 description 2
- 238000006481 deamination reaction Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a reactor and a method for treating landfill leachate reverse osmosis concentrated solution, which adopts the following technical scheme that: the sedimentation tank, the top surface of sedimentation tank has offered the inlet opening, the top surface of sedimentation tank has offered the first hole of drawing water, the inside fixed mounting of the first hole of drawing water has the first conveyer pipe, one end of the first conveyer pipe is fixed mounting in the first treatment tank; the second treatment tank is arranged at one side of the first treatment tank, and a third treatment tank is arranged at one side of the second treatment tank; the treatment assembly is arranged in the first treatment tank, is electrified for the cathode rod and the anode rod through the direct-current power supply module, and at the moment, the solution can undergo a reduction-state iron and hydrogen peroxide reaction-mediated electric Fenton reaction to further promote the further removal of COD in the solution, and the concentrated solution is treated through the dechlorination reactor, so that the removal of chloride ions is realized, and the harmful substances in the liquid are reduced.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a reactor and a method for treating landfill leachate reverse osmosis concentrated solution.
Background
The sanitary landfill treatment of the garbage has the characteristics of small investment, low operation cost, simple operation equipment, capability of treating various types of garbage and the like, and is the most main mode of garbage treatment in the city of China at present or even in the past for many years. However, sanitary landfills have a critical problem, namely, the collection and disposal of landfill leachate. The landfill leachate is high-concentration organic wastewater obtained by leaching garbage in the processes of stacking and landfill through fermentation, rain wash and surface water and groundwater soaking.
For example, chinese patent publication No. CN109809535a, in which a reactor and a method for treating reverse osmosis concentrate of landfill leachate are proposed, the assembly comprising an electrochemical reactor capable of simultaneously implementing electroflocculation and electroFenton, a deamination reactor in which deamination filler and auxiliary filler are placed, and a dechlorination reactor in which dechlorination filler and auxiliary filler are placed. Compared with the prior art, the method can realize the efficient removal of COD and total nitrogen in the reverse osmosis concentrated solution under the condition of not using an expensive BDD electrode or DSA electrode, reduces the construction cost of the process and relieves the pressure of subsequent treatment. Secondly, the invention can effectively remove the residual available chlorine and lighten the toxicity of the effluent. The reactor for treating the landfill leachate reverse osmosis concentrated solution is convenient to operate and high in automation degree, but in the scheme, the reverse osmosis concentrated solution is treated by adopting electrode and nitrogen removal operation, so that the toxicity of water is reduced, toxic substances in a concentrated solution part cannot be treated, and the treatment effect is general.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a reactor and a method for treating reverse osmosis concentrated solution of landfill leachate, which solve the problems that the reverse osmosis concentrated solution is treated by adopting electrode and nitrogen removal operation, the toxicity of water is reduced, and toxic substances in the concentrated solution cannot be treated, and the treatment effect is general.
The technical aim of the invention is realized by the following technical scheme:
a reactor and method for treating landfill leachate reverse osmosis concentrate, comprising: the sedimentation tank, the inlet opening has been seted up to the top surface of sedimentation tank, the top surface of sedimentation tank has seted up first water pump hole, the inside fixed mounting of first water pump hole has first conveyer pipe, the one end fixed mounting of first conveyer pipe is in first treatment tank; the second treatment pool is arranged on one side of the first treatment pool, and a third treatment pool is arranged on one side of the second treatment pool; and the treatment assembly is arranged in the first treatment tank and is used for treating the reverse osmosis concentrated solution.
Through adopting above-mentioned technical scheme, through setting up the sedimentation tank, when using, rubbish infiltration liquid reverse osmosis concentrate and hydrogen peroxide are through the inside that the inlet opening added the sedimentation tank, are kept stand through the sedimentation tank to the concentrate and are deposited, get rid of concentrate precipitable substance, rethread first conveyer pipe makes concentrate draw into inside the first treatment tank, carries out processing through first treatment tank, second treatment tank and third treatment tank to the concentrate, reduce the harm material of concentrate.
Preferably, the processing assembly includes: the mounting box is fixedly arranged on the top surface of the first treatment pool, a direct current power supply module is fixedly arranged in the mounting box, and two instrument holes are formed in the top surface of the first treatment pool; the cathode rod is fixedly arranged on the bottom surface of the direct current power supply module, the bottom surface of the direct current power supply module is fixedly provided with an anode rod, and the cathode rod and the anode rod respectively penetrate through the instrument hole and extend into the first treatment tank; the mounting hole is formed in the top surface of the second treatment tank, and a dechlorination reactor is fixedly arranged in the mounting hole.
Through adopting above-mentioned technical scheme, through setting up direct current power module, pass through direct current power module for negative pole stick and positive pole stick circular telegram, the iron ion that iron anode dissolved forms the iron precipitate and can adsorb macromolecule difficult degradation organic matter and promote its separation and realize COD's rapid reduction from solution in solution, the nitrate nitrogen in this in-process solution is mainly reduced to ammonia nitrogen under the cathodic reduction effect, the reduction state iron can take place with hydrogen peroxide reaction mediated electricity Fenton reaction this moment in solution, produce hydroxyl free radical, further promote the further removal of COD in the solution, handle the concentrate through dechlorination reactor, thereby realize the removal of chloride ion, harmful substance in the reduction liquid.
Preferably, the processing assembly further comprises: the filter tank is arranged on the top surface of the third treatment tank, a mounting frame is movably arranged in the filter tank, and a reverse osmosis membrane is fixedly arranged in the mounting frame; and the pressurizing hole Kong Kaishe is formed in the top surface of the third treatment tank, and a pressurizing pump is fixedly arranged in the pressurizing hole.
Through adopting above-mentioned technical scheme, through setting up the force (forcing) pump, after the concentrate carries out secondary treatment, through force (forcing) pump to the inside increase pressure of third treatment tank, carry out filtration treatment to the concentrate through the anti-membrane this moment, further handle the concentrate, reduce harmful substance in the liquid.
Preferably, a drain hole is formed in one side of the third treatment tank, a drain pipe is fixedly arranged in the drain hole, and a valve is arranged in the drain pipe.
Through adopting above-mentioned technical scheme, through setting up the valve, through opening the valve, discharge the concentrate after handling through the drain pipe, conveniently discharge concentrate.
Preferably, the second water pumping hole is formed in the top surface of the first treatment tank, a second conveying pipe is fixedly arranged in the second water pumping hole, one end of the second conveying pipe is fixedly arranged on the top surface of the second treatment tank, the third water pumping hole is formed in the top surface of the second treatment tank, a third conveying pipe is fixedly arranged in the third water pumping hole, one end of the third conveying pipe is fixedly arranged on the top surface of the third treatment tank, and a water supply pump is fixedly arranged at one end of each of the first conveying pipe, the second conveying pipe and the third conveying pipe.
Through adopting above-mentioned technical scheme, through setting up the second conveyer pipe, make the concentrate after the first treatment pond is handled inside the second treatment pond of suction through the second conveyer pipe, rethread third conveyer pipe is taken out the concentrate after the second treatment pond is handled, makes concentrate suction third treatment pond in, carries out the tertiary treatment, promotes the practicality.
Preferably, the cleaning tank is arranged on one side of the interior of the sedimentation tank, the cylinder is fixedly arranged in the cleaning tank, the scraper is fixedly arranged at one end of the telescopic shaft of the cylinder, the sewage draining hole is arranged on one side of the sedimentation tank, and the sealing plate is arranged in the sewage draining hole.
Through adopting above-mentioned technical scheme, through setting up the cylinder, promote the scraper blade through the cylinder telescopic shaft and remove, promote the inside precipitate of sedimentation tank through the scraper blade removal, through dismantling the lower closing plate, make things convenient for the staff to clear up the precipitate.
Preferably, the top surface fixed mounting of third treatment pond has the water tank, one side fixed mounting of water tank has the delivery pipe, the one end fixed mounting of delivery pipe has the water pump, the washing tank has been seted up to inside one side of third treatment pond, the inside fixed mounting of washing tank has electric putter, and electric putter's telescopic shaft one end fixed mounting has the cleaning plate, the fixed slot has been seted up to the top surface of cleaning plate, the one end fixed mounting of delivery pipe is in the inside of fixed slot, a plurality of hole for water spraying has been seted up to one side of cleaning plate, the inside fixed mounting of hole for water spraying has the shower nozzle.
Through adopting above-mentioned technical scheme, through setting up the water pump, through the inside clear water of water pump extraction water tank, make clear water pour into the inside of wasing the board through the delivery pipe into, make clear water blowout rinse the membrane that is anti-thoroughly through the shower nozzle, promote through electric putter telescopic shaft and rinse the board and remove, realize wasing the membrane that is anti-thoroughly, increase clearance area and efficiency.
The application method of the reactor for treating the landfill leachate reverse osmosis concentrated solution comprises the following specific steps:
s100: adding reverse osmosis concentrated solution into a sedimentation tank, adding part of medicament, standing for sedimentation, performing primary treatment on the concentrated solution, and starting a water supply pump after standing, wherein a first conveying pipe pumps the concentrated solution into the first treatment tank;
s200: after the concentrated solution enters the first treatment tank, a direct current power supply module is started to supply power for a cathode rod and an anode rod, the concentrated solution is subjected to second treatment, a water supply pump is started again, at the moment, the concentrated solution is pumped into the second treatment tank by a second conveying pipe, a dechlorination reactor is started, chloride ions in the concentrated solution are removed, effective chlorine removal is achieved, and three treatments are carried out;
s300: starting a water supply pump, pumping the concentrated solution in the second treatment tank into the third treatment tank by a third conveying pipe, starting a pressurizing pump, increasing the pressure to the third treatment tank, enabling the concentrated solution subjected to the third treatment to pass through a reverse osmosis membrane for the fourth treatment, realizing multiple filtration treatment of the concentrated solution, and reducing harmful substances in the concentrated solution;
s400: the valve is opened, so that the filtered concentrated solution is discharged from the drain pipe, after the sewage treatment and the discharge are completed, the water pump is started, the water supply pipe is used for pumping out clean water in the water tank, the clean water is enabled to enter and exit the cleaning plate, the clean water is ejected from the spray head, the reverse osmosis membrane is cleaned, and the cleaning is convenient.
In summary, the invention has the following advantages:
through setting up the sedimentation tank, when using, rubbish infiltration liquid reverse osmosis concentrate and hydrogen peroxide are through the inside of inlet opening joining sedimentation tank, through the sedimentation tank to concentrate and keep still the sediment, get rid of concentrate precipitable substance, through setting up direct current power module for cathode rod and positive pole stick circular telegram, the iron ion that iron positive pole dissolved forms the difficult degradation organic matter of iron precipitate adsorbable macromolecule in solution and impels it to separate and realize COD's rapid reduction from solution, nitrate nitrogen in this process solution is mainly reduced to ammonia nitrogen under the cathodic reduction effect, the reduction state iron can take place for this moment solution and hydrogen peroxide reaction mediated electricity Fenton reaction, produce hydroxyl radical, further promote the further removal of COD in the solution, carry out the treatment to concentrate through dechlorination reactor, thereby realize the removal of chloride ion, reduce harmful substance in the liquid, through setting up the force pump, after the concentrate carries out secondary treatment, increase pressure to the inside of third treatment tank through the force pump, carry out filtration treatment to concentrate through reverse osmosis membrane, further reduce harmful substance in the concentrate.
Through setting up the cylinder, promote the scraper blade through the cylinder telescopic shaft and remove, promote the inside precipitate that deposits of sedimentation tank through the scraper blade removal, through dismantling the lower closing plate, make things convenient for the staff to clear up the precipitate.
Through setting up the water pump, through the inside clear water of water tank is taken out to the water pump, makes clear water pour into the inside of wasing the board through the delivery pipe, makes clear water blowout rinse the membrane that is anti-thoroughly, promotes through the telescopic shaft of electric putter and washs the board and remove, realizes wasing the membrane that is anti-thoroughly, increases clearance area and efficiency.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of a third treatment tank splitting structure of the present invention;
FIG. 3 is a schematic view of a cleaning plate structure of the present invention;
FIG. 4 is a schematic diagram of a sedimentation tank splitting structure of the present invention;
FIG. 5 is a schematic diagram of a first treatment tank splitting architecture of the present invention;
fig. 6 is an enlarged schematic view of the invention of fig. 2 a.
Reference numerals: 1. a sedimentation tank; 2. a water inlet hole; 3. a first pumping hole; 4. a first delivery tube; 5. a first treatment tank; 6. a second treatment tank; 7. a third treatment tank; 8. a mounting box; 9. a direct current power supply module; 10. an instrument aperture; 11. a cathode rod; 12. an anode rod; 13. a mounting hole; 14. a dechlorination reactor; 15. a filter tank; 16. a mounting frame; 17. a reverse osmosis membrane; 18. a pressurizing hole; 19. a pressurizing pump; 20. a drain hole; 21. a drain pipe; 22. a second pumping hole; 23. a second delivery tube; 24. a third pumping hole; 25. a third delivery tube; 26. cleaning the groove; 27. a cylinder; 28. a scraper; 29. a blow-down hole; 30. a sealing plate; 31. a water tank; 32. a water supply pipe; 33. a cleaning tank; 34. cleaning the plate; 35. a water spraying hole; 36. a spray head.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The technical aim of the invention is realized by the following technical scheme:
referring to fig. 1, fig. 2, fig. 4 and fig. 5, a reactor for treating landfill leachate reverse osmosis concentrated solution adopts the following technical scheme, which comprises a sedimentation tank 1, wherein a water inlet hole 2 is formed in the top surface of the sedimentation tank 1, a first water pumping hole 3 is formed in the top surface of the sedimentation tank 1, a first conveying pipe 4 is fixedly arranged in the first water pumping hole 3, one end of the first conveying pipe 4 is fixedly arranged in a first treatment tank 5, one side of the first treatment tank 5 is provided with a second treatment tank 6, one side of the second treatment tank 6 is provided with a third treatment tank 7, a treatment assembly is arranged in the first treatment tank 5 and is used for treating reverse osmosis concentrated solution, when the reactor is in use, the landfill leachate reverse osmosis concentrated solution and hydrogen peroxide are added into the interior of the sedimentation tank 1 through the water inlet hole 2, the concentrated solution is subjected to standing sedimentation through the sedimentation tank 1, and precipitable substances of the concentrated solution are removed, the concentrated solution is pumped into the first treatment tank 5 through the first conveying pipe 4, the concentrated solution is processed through the first treatment tank 5, the second treatment tank 6 and the third treatment tank 7, the harmful substances of the concentrated solution are reduced, the treatment component comprises a mounting box 8, the mounting box 8 is fixedly arranged on the top surface of the first treatment tank 5, a direct current power supply module 9 is fixedly arranged in the mounting box 8, two instrument holes 10 are formed in the top surface of the first treatment tank 5, a cathode rod 11 is fixedly arranged on the bottom surface of the direct current power supply module 9, an anode rod 12 is fixedly arranged on the bottom surface of the direct current power supply module 9, the cathode rod 11 and the anode rod 12 respectively penetrate through the instrument holes 10 and extend to the inside of the first treatment tank 5, a mounting hole 13 is formed in the top surface of the second treatment tank 6, a dechlorination reactor 14 is fixedly arranged in the mounting hole 13, by arranging the direct current power supply module 9, the direct current power supply module 9 is used for electrifying the cathode rod 11 and the anode rod 12, iron ions dissolved out by the iron anode form iron precipitates in the solution to adsorb macromolecular refractory organic matters so as to promote the macromolecular refractory organic matters to be separated from the solution and realize rapid reduction of COD, nitrate nitrogen in the solution is mainly reduced to ammonia nitrogen under the action of cathode reduction, at the moment, the solution can generate electric Fenton reaction mediated by the reaction of the reduced iron and hydrogen peroxide to generate hydroxyl free radicals, further promote further removal of COD in the solution, the concentrated solution is treated through the dechlorination reactor 14, thereby realizing removal of chloride ions, reducing harmful substances in the liquid, the treatment assembly also comprises a filter tank 15, the filter tank 15 is arranged on the top surface of the third treatment tank 7, a mounting frame 16 is movably arranged in the filter tank 15, a reverse osmosis membrane 17 is fixedly arranged in the mounting frame 16, a pressurizing hole 18 is arranged in the top surface of the third treatment tank 7, and the pressurizing pump 19 is fixedly arranged in the pressurizing hole 18.
Example two
Based on the above embodiment 1, referring to fig. 1 and 2, a drain hole 20 is opened at one side of the third treatment tank 7, a drain pipe 21 is fixedly installed in the drain hole 20, a valve is installed in the drain pipe 21, the treated concentrated solution is discharged through the drain pipe 21 by opening the valve, the concentrated solution is conveniently discharged, a second water pumping hole 22 is opened at the top surface of the first treatment tank 5, a second conveying pipe 23 is fixedly installed in the second water pumping hole 22, one end of the second conveying pipe 23 is fixedly installed at the top surface of the second treatment tank 6, a third water pumping hole 24 is opened at the top surface of the second treatment tank 6, a third conveying pipe 25 is fixedly installed in the third water pumping hole 24, one end of the third conveying pipe 25 is fixedly installed at the top surface of the third treatment tank 7, a water supply pump is fixedly installed at one end of the first conveying pipe 4, the second conveying pipe 23 and the third conveying pipe 25, the concentrated solution after the first treatment tank 5 is pumped into the second treatment tank 6 by the second conveying pipe 23, and the concentrated solution is pumped into the third treatment tank 7 by the third conveying pipe 25.
Example III
Based on the above embodiment 1 or 2, referring to fig. 1, 2, 3, 4 and 6, a cleaning tank 26 is provided at one side of the interior of the sedimentation tank 1, an air cylinder 27 is fixedly installed in the cleaning tank 26, a scraper 28 is fixedly installed at one end of a telescopic shaft of the air cylinder 27, a drain hole 29 is provided at one side of the sedimentation tank 1, a sealing plate 30 is installed in the interior of the drain hole 29, the scraper 28 is pushed to move by the telescopic shaft of the air cylinder 27 through the arrangement of the air cylinder 27, the sediment precipitated in the sedimentation tank 1 is pushed to move by the scraper 28, the sediment is cleaned by a worker conveniently by detaching the sealing plate 30, a water tank 31 is fixedly installed at the top surface of the third treatment tank 7, a water supply pipe 32 is fixedly installed at one side of the water tank 31, a water pump is fixedly installed at one end of the water supply pipe 32, the inside one side of third treatment pond 7 has seted up washing tank 33, the inside fixed mounting of washing tank 33 has electric putter, electric putter's telescopic shaft one end fixed mounting has wash board 34, the fixed slot has been seted up to wash the top surface of board 34, the one end fixed mounting of delivery pipe 32 is in the inside of fixed slot, a plurality of hole for water spraying 35 has been seted up to one side of wash board 34, the inside fixed mounting of hole for water spraying 35 has shower nozzle 36, through setting up the water pump, take out the inside clear water of water tank 31 through the water pump, make the clear water pour into the inside of wash board 34 through delivery pipe 32, make clear water blowout rinse anti-membrane 17 through shower nozzle 36, promote the washing board 34 through electric putter telescopic shaft and remove, realize wasing anti-membrane 17, increase clearance area and efficiency.
Referring to fig. 1, the application also discloses a method for using the reactor for treating landfill leachate reverse osmosis concentrated solution, which comprises the following specific steps:
s200: after the concentrated solution enters the first treatment tank 5, a direct current power supply module 9 is started to supply power to a cathode rod 11 and an anode rod 12, the concentrated solution is subjected to second treatment, a water supply pump is started again, at the moment, the concentrated solution is pumped into the second treatment tank 6 by a second conveying pipe 23, a dechlorination reactor 14 is started, chloride ions in the concentrated solution are removed, removal of available chlorine is realized, and three treatments are performed;
s300: starting a water supply pump, pumping the concentrated solution in the second treatment tank 6 into the third treatment tank 7 through a third conveying pipe 25, starting a pressurizing pump 19, increasing the pressure of the concentrated solution to the third treatment tank 7, enabling the concentrated solution subjected to the third treatment to pass through a reverse osmosis membrane 17 for the fourth treatment, realizing multiple filtration treatment of the concentrated solution, and reducing harmful substances in the concentrated solution;
s400: the valve is opened to discharge the filtered concentrated solution from the drain pipe 21, after the sewage treatment and discharge are completed, the water pump is started to enable the water supply pipe 32 to pump clean water in the water tank 31, the clean water is enabled to enter and exit the cleaning plate 34, the clean water is ejected from the spray head 36, the reverse osmosis membrane 17 is cleaned, and the cleaning is convenient.
Working principle: referring to fig. 1-6, when in use, the reverse osmosis concentrated solution of garbage penetrating fluid and hydrogen peroxide are added into the sedimentation tank 1 through the water inlet hole 2, the concentrated solution is subjected to standing sedimentation through the sedimentation tank 1 to remove precipitable substances of the concentrated solution, the direct current power supply module 9 is arranged, the cathode rod 11 and the anode rod 12 are electrified through the direct current power supply module 9, iron ions dissolved out by the iron anode form iron precipitate in the solution to adsorb macromolecular refractory organic matters so as to promote the separation of macromolecular refractory organic matters from the solution and realize the rapid reduction of COD, nitrate nitrogen in the solution is mainly reduced into ammonia nitrogen under the action of cathode reduction, at the moment, the solution can undergo electric Fenton reaction mediated by the reaction of reduced iron and hydrogen peroxide to generate hydroxyl free radicals, further promote the further removal of COD in the solution, the concentrated solution is treated by the dechlorination reactor 14 so as to remove chloride ions and reduce harmful substances in the liquid, the pressurizing pump 19 is arranged, after the concentrated solution is subjected to secondary treatment, the pressurizing pump 19 is used for increasing the pressure in the third treatment tank 7, the concentrated solution is subjected to filtration treatment by the reverse osmosis membrane 17 at the moment, the concentrated solution is treated again, the harmful substances in the liquid are further reduced, the scraping plate 28 is pushed to move by the telescopic shaft of the air cylinder 27 through the air cylinder 27, the sediment precipitated in the sedimentation tank 1 is pushed to move by the scraping plate 28, the lower sealing plate 30 is detached, the sediment is conveniently cleaned by staff, the water pump is arranged, the clear water in the water tank 31 is pumped out through the water pump, the clear water is injected into the cleaning plate 34 through the water supply pipe 32, the clear water is sprayed out through the spray head 36 to clean the reverse osmosis membrane 17, the cleaning plate 34 is pushed to move by the telescopic shaft of the electric push rod, the reverse osmosis membrane 17 is cleaned, and the cleaning area and the cleaning efficiency are increased.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A reactor and method for treating landfill leachate reverse osmosis concentrate, comprising:
the sedimentation tank (1), inlet opening (2) has been seted up to the top surface of sedimentation tank (1), first water pumping hole (3) has been seted up to the top surface of sedimentation tank (1), the inside fixed mounting of first water pumping hole (3) has first conveyer pipe (4), the one end fixed mounting of first conveyer pipe (4) is in first treatment tank (5);
the second treatment tank (6), the second treatment tank (6) is arranged at one side of the first treatment tank (5), and a third treatment tank (7) is arranged at one side of the second treatment tank (6);
and the treatment assembly is arranged in the first treatment tank (5) and is used for treating reverse osmosis concentrated solution.
2. A reactor and method for treating landfill leachate reverse osmosis concentrate according to claim 1, wherein the treatment assembly comprises:
the mounting box (8), the mounting box (8) is fixedly arranged on the top surface of the first treatment tank (5), a direct current power supply module (9) is fixedly arranged in the mounting box (8), and two instrument holes (10) are formed in the top surface of the first treatment tank (5);
the cathode rod (11), the cathode rod (11) is fixedly arranged on the bottom surface of the direct current power supply module (9), the anode rod (12) is fixedly arranged on the bottom surface of the direct current power supply module (9), and the cathode rod (11) and the anode rod (12) respectively penetrate through the instrument hole (10) to extend into the first treatment tank (5);
the installation hole (13), the top surface in second processing tank (6) is seted up in installation hole (13), the inside fixed mounting of installation hole (13) has dechlorination reactor (14).
3. A reactor and method for treating landfill leachate reverse osmosis concentrate according to claim 1, wherein the treatment assembly further comprises:
the filter tank (15) is arranged on the top surface of the third treatment tank (7), a mounting frame (16) is movably arranged in the filter tank (15), and a reverse osmosis membrane (17) is fixedly arranged in the mounting frame (16);
the pressurizing hole (18), the pressurizing hole (18) is arranged on the top surface of the third treatment tank (7), and a pressurizing pump (19) is fixedly arranged in the pressurizing hole (18).
4. A reactor and a method for treating landfill leachate reverse osmosis concentrated solution according to claim 3, wherein a drain hole (20) is formed on one side of the third treatment tank (7), a drain pipe (21) is fixedly installed in the drain hole (20), and a valve is installed in the drain pipe (21).
5. The reactor and the method for treating landfill leachate reverse osmosis concentrated solution according to claim 1, wherein a second water pumping hole (22) is formed in the top surface of the first treatment tank (5), a second conveying pipe (23) is fixedly installed in the second water pumping hole (22), one end of the second conveying pipe (23) is fixedly installed on the top surface of the second treatment tank (6), a third water pumping hole (24) is formed in the top surface of the second treatment tank (6), a third conveying pipe (25) is fixedly installed in the third water pumping hole (24), one end of the third conveying pipe (25) is fixedly installed on the top surface of the third treatment tank (7), and water supply pumps are fixedly installed at one ends of the first conveying pipe (4), the second conveying pipe (23) and the third conveying pipe (25) respectively.
6. The reactor and the method for treating landfill leachate reverse osmosis concentrated solution according to claim 1, wherein a cleaning groove (26) is formed in one side of the interior of the sedimentation tank (1), an air cylinder (27) is fixedly installed in the cleaning groove (26), a scraper blade (28) is fixedly installed at one end of a telescopic shaft of the air cylinder (27), a sewage drain hole (29) is formed in one side of the sedimentation tank (1), and a sealing plate (30) is installed in the sewage drain hole (29).
7. The reactor and the method for treating landfill leachate reverse osmosis concentrated solution according to claim 1, wherein a water tank (31) is fixedly installed on the top surface of the third treatment tank (7), a water supply pipe (32) is fixedly installed on one side of the water tank (31), a water pump is fixedly installed at one end of the water supply pipe (32), a cleaning tank (33) is arranged on one side of the interior of the third treatment tank (7), an electric push rod is fixedly installed in the cleaning tank (33), a cleaning plate (34) is fixedly installed at one end of a telescopic shaft of the electric push rod, a fixing groove is formed in the top surface of the cleaning plate (34), one end of the water supply pipe (32) is fixedly installed in the fixing groove, a plurality of water spraying holes (35) are formed in one side of the cleaning plate (34), and a spray head (36) is fixedly installed in the interior of the water spraying holes (35).
8. A reactor for treating landfill leachate reverse osmosis concentrate according to claim 7, comprising the following specific steps:
s100: adding reverse osmosis concentrated solution into a sedimentation tank (1), adding part of medicament, standing for sedimentation, performing primary treatment on the concentrated solution, and starting a water supply pump after standing, wherein a first conveying pipe (4) pumps the concentrated solution into a first treatment tank (5);
s200: after the concentrated solution enters the first treatment tank (5), a direct current power supply module (9) is started to supply power to a cathode rod (11) and an anode rod (12), the concentrated solution is subjected to second treatment, a water supply pump is started again, at the moment, the concentrated solution is pumped into the second treatment tank (6) by a second conveying pipe (23), a dechlorination reactor (14) is started to remove chloride ions in the concentrated solution, so that effective chlorine is removed, and three treatments are performed;
s300: starting a water supply pump, pumping the concentrated solution in the second treatment tank (6) into the third treatment tank (7) through a third conveying pipe (25), starting a pressurizing pump (19), increasing the pressure to the third treatment tank (7), enabling the concentrated solution subjected to the third treatment to pass through a reverse osmosis membrane (17), and performing the fourth treatment to realize multiple filtration treatment of the concentrated solution and reduce harmful substances in the concentrated solution;
s400: the valve is opened, so that the filtered concentrated solution is discharged from the drain pipe (21), after the sewage treatment and the discharge are completed, the water pump is started, the water supply pipe (32) is used for pumping out clean water in the water tank (31), the clean water is enabled to enter and exit the cleaning plate (34), the clean water is sprayed out from the spray head (36), and the reverse osmosis membrane (17) is cleaned, so that the cleaning is convenient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410202885.7A CN117865411A (en) | 2024-02-23 | 2024-02-23 | Reactor and method for treating landfill leachate reverse osmosis concentrated solution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410202885.7A CN117865411A (en) | 2024-02-23 | 2024-02-23 | Reactor and method for treating landfill leachate reverse osmosis concentrated solution |
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| CN117865411A true CN117865411A (en) | 2024-04-12 |
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| CN202410202885.7A Pending CN117865411A (en) | 2024-02-23 | 2024-02-23 | Reactor and method for treating landfill leachate reverse osmosis concentrated solution |
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| Country | Link |
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| CN (1) | CN117865411A (en) |
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