CN214115292U - Device for efficiently treating aged landfill leachate through biological membrane and electric flocculation - Google Patents
Device for efficiently treating aged landfill leachate through biological membrane and electric flocculation Download PDFInfo
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- CN214115292U CN214115292U CN202023202146.4U CN202023202146U CN214115292U CN 214115292 U CN214115292 U CN 214115292U CN 202023202146 U CN202023202146 U CN 202023202146U CN 214115292 U CN214115292 U CN 214115292U
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- landfill leachate
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- 238000005189 flocculation Methods 0.000 title claims abstract description 24
- 230000016615 flocculation Effects 0.000 title claims abstract description 23
- 239000000149 chemical water pollutant Substances 0.000 title claims abstract description 21
- 239000012528 membrane Substances 0.000 title claims abstract description 15
- 239000000725 suspension Substances 0.000 claims abstract description 34
- 239000000945 filler Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 19
- 239000011229 interlayer Substances 0.000 claims description 9
- 238000009297 electrocoagulation Methods 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000007667 floating Methods 0.000 claims description 2
- CJTCBBYSPFAVFL-UHFFFAOYSA-N iridium ruthenium Chemical compound [Ru].[Ir] CJTCBBYSPFAVFL-UHFFFAOYSA-N 0.000 claims description 2
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- 244000005700 microbiome Species 0.000 abstract description 11
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 8
- 239000003344 environmental pollutant Substances 0.000 abstract description 7
- 231100000719 pollutant Toxicity 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000000813 microbial effect Effects 0.000 abstract description 3
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 238000005188 flotation Methods 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- -1 sulphide ion Chemical class 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model discloses a device for efficiently treating old garbage leachate by using a biological membrane and electric flocculation, which comprises a shell, a cathode, an anode, a suspension ball filler, a carrier and a magnet. The utility model discloses can carry out the electric flocculation simultaneously high-efficiently, electric air supporting and microbial degradation process, can effectively get rid of multiple difficult processing pollutant, and have easy operation, can run for a long time, the advantage of being convenient for maintain, it is low to have solved sacrificial electrode utilization efficiency in the two electrode electric flocculation method, the polar plate interval is great, the energy consumption is higher, and the ammonia nitrogen gets rid of the inefficiency scheduling problem, the problem that the microorganism is difficult to the pollutant of handling and biomembrane pollutes in the biomembrane method has also been solved simultaneously, be particularly suitable for handling old age landfill leachate.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, concretely relates to biomembrane and electric flocculation high-efficient device of handling old garbage leachate.
Background
The electric flocculation technology is that an aluminum anode is electrolyzed through an electrochemical process to generate an aluminum hydroxide coagulant, the particles are condensed into larger particles to be settled by eliminating/neutralizing the repulsive force of the particles in water, and meanwhile, a negative plate can generate tiny hydrogen bubbles to float flocs with poor settling performance on the surface of the liquid. The electrocoagulation technology combines the advantages of coagulation, flotation and electrochemistry simultaneously, is clean and environment-friendly, and is a water treatment technology with great potential.
The electrocoagulation is classified into a single-electrode mode and a double-electrode mode according to an arrangement mode of electrodes. The single electrode is at least one pair of anode and cathode plates, and each anode and cathode plate is connected with each other in an arrangement mode, and the combination of each anode and cathode of the arrangement mode is equivalent to a small electrolytic cell; the double-electrode mode is composed of a pair of driving electrodes directly connected with a power supply and a plurality of sacrificial electrodes which are not connected with each other, the sacrificial electrodes are respectively induced to be anode/cathode sides under the electric field of a cathode/anode plate, and corresponding sides respectively generate electrochemical reactions corresponding to the sacrificial electrodes. The double-electrode mode has the advantages of long service time of the driving electrode and better processing effect than the single-electrode mode, and has huge potential in practical application.
Ammonia nitrogen which cannot be treated by the electric flocculation is generally treated by a biological treatment, and a biological membrane method is a good treatment method. The biofilm method has the advantages of small sludge amount, long hydraulic retention time, long microbial generation time, strong pollution load resistance and the like, and is often used for treating pollutants with unstable inflow water quality or unstable flow. However, the surface of the biological membrane has the defect of membrane pollution caused by the generation alternation of microorganisms or the sedimentation of suspended matters in polluted water, so the periodic removal of the biological membrane pollution is the key for keeping the biological membrane normally running.
The old landfill leachate contains a large amount of organic pollutants which cannot be removed by electric flocculation and heavy metals which are difficult to degrade by microorganisms, so that the old landfill leachate is difficult to treat. Therefore, it is necessary to develop a treatment device suitable for the aged landfill leachate containing high-concentration ammonia nitrogen, organic matters difficult to biodegrade and heavy metals.
Disclosure of Invention
An object of the utility model is to provide a device of old landfill leachate is handled with electric flocculation high efficiency to biomembrane.
The utility model aims at realizing like this, pack, carrier, magnet including casing, negative pole, positive pole, suspension ball, the casing is columnar structure, and the casing top is equipped with exhaust row cinder notch, and the casing bottom is equipped with row mud mouth, and row mud mouth is equipped with the valve, and casing side lower part is equipped with the water inlet, and casing side upper portion is equipped with the overflow delivery port, upper portion in the casing is located to the negative pole, the lower part in the casing is located to the positive pole, suspension ball packs the middle part of locating in the casing, the carrier dress is in suspension ball packs, the carrier internal seal is provided with magnet, and suspension ball packs and adsorbs there is the iron powder.
Compared with the prior art, the utility model discloses following technological effect has:
1. the utility model discloses can carry out the electrocoagulation simultaneously high-efficiently, electro-flotation and microbial degradation process, can effectively get rid of multiple pollutant that is difficult to handle, and have easy operation, can run for a long time, the advantage of being convenient for maintain, it is low to have solved sacrificial electrode utilization efficiency in the two electrode electrocoagulation methods, the polar plate interval is great, the energy consumption is higher, and ammonia nitrogen gets rid of the inefficiency scheduling problem, also solved the pollutant that microorganism is difficult to handle in the biomembrane method and the problem of biomembrane pollution simultaneously, especially suitable for handling old age landfill leachate;
2. for electric flocculation, because the iron powder is adsorbed on the suspension ball filler in a powdery form, the iron powder has a large reaction specific surface area, more active flocculating agents can be generated in the same time, and the waste of the iron powder can be greatly reduced; meanwhile, hydrogen generated by the iron powder can effectively remove biofilm pollutants, so that the biofilm pollution is reduced;
3. for biological treatment, heavy metals which harm the growth of microorganisms and substances which are difficult to degrade by the microorganisms are removed by electric flocculation, so that the bioavailability is improved; meanwhile, the microorganisms consume substances which cannot be removed by electric flocculation, such as ammonia nitrogen, COD and the like; the electric flocculation and the biological treatment interact with each other, so that the types of the treated pollutants are greatly increased, and the application range of the device is enlarged;
4. old landfill leachate process the utility model discloses the device is handled the back, and the COD clearance is more than 80%, and the ammonia nitrogen clearance is more than 90%, and turbidity and phosphate radical clearance are more than 99%, and the sulphide ion clearance is more than 99%, and because the iron powder particle diameter as sacrificial anode is little, specific surface area is big, produces the fast and difficult influence that receives the cathode passivation of active flocculant speed, so save anode material and clearance height, compare in traditional electric flocculation/electric microbiological technique, the utility model discloses a sacrificial electrode material saves 90%, and application scope is more extensive than traditional technology, and handles 1 ton landfill leachate only for 15.2025 kWh, is less than prior art's electrochemical treatment's energy consumption far away.
Drawings
FIG. 1 is a schematic view of the cross-sectional structure of the present invention;
FIG. 2 is a schematic diagram of the right-side cross-sectional structure of the present invention;
FIG. 3 is a schematic top view of the second housing;
FIG. 4 is a schematic top view of the chuck;
FIG. 5 is a schematic top view of the packing retainer;
in the figure: 1-a first shell, 2-a second shell, 3-a third shell, 4-a cathode, 5-an anode, 6-a suspension ball filler, 7-a carrier, 8-a magnet, 9-an exhaust deslagging port, 10-a sludge discharge port, 11-a water inlet, 12-an overflow water outlet, 13-a circulating water inlet, 14-a circulating water outlet, 15-a cathode slot, 16-an anode slot, 17-a clamping table and 18-a filler fixer.
Detailed Description
The following description of the present invention is provided with reference to the accompanying drawings, which are not intended to limit the present invention in any way, and any alterations or replacements made based on the teachings of the present invention are all within the protection scope of the present invention.
As shown in the accompanying drawings 1-5 the utility model discloses a casing, negative pole 4, positive pole 5, suspension ball pack 6, carrier 7, magnet 8, the casing is columnar structure, and the casing top is equipped with exhaust scum outlet 9, and the casing bottom is equipped with mud discharging port 10, and mud discharging port 10 is equipped with the valve, and casing side lower part is equipped with water inlet 11, and casing side upper portion is equipped with overflow delivery port 12, negative pole 4 locates the upper portion in the casing, positive pole 5 locates the lower part in the casing, suspension ball packs 6 and locates the middle part in the casing, carrier 7 dress is in suspension ball packs 6, carrier 7 inner seal is provided with magnet 8, and suspension ball packs 6 and adsorbs there is the iron powder, and the iron powder can use 800 mesh iron powder.
Preferably, the shell is composed of a first shell 1, a second shell 2 and a third shell 3 from top to bottom, the inner diameter of the first shell 1 is 10cm, the height of the first shell is 11cm, the second shell 2 comprises a working layer with the inner diameter of 10cm, the third shell 3 is of an upper cylindrical and lower hopper-shaped structure, the upper cylindrical is a settling zone, the lower hopper-shaped is a mud storage zone, the inner diameter of the settling zone cylindrical structure is 10cm, the upper diameter of the mud storage zone hopper-shaped structure is 10cm, the lower diameter of the mud storage zone hopper-shaped structure is 5cm, the first shell 1 and the second shell 2, the second shell and the third shell 3 are detachably connected through flanges, rubber pads can be installed among the flanges, the sealing performance is improved, and the flanges are fixed by 12 screws, the cathode 4 is positioned in the first shell 1, the overflow water outlet 12 is positioned on the side surface of the first shell 1, the anode 5 is positioned in the third shell 3, the water inlet 11 is positioned on the side surface of the third shell 3, and the suspension ball filler 6 is positioned in the second shell 2; the shell is composed of three sections of shells, and the split type detachable structure is convenient for detaching and maintaining the electrode.
The utility model discloses the device all can set up non-metallic valve with external intercommunication department, and the suspension ball packs 6 can be that polypropylene suspension ball packs, diameter 8cm, and the suspension ball packs for the biological packing that technical personnel are familiar with in the field.
Preferably, the cathode 4 is located below the overflow water outlet 12, the anode 5 is located below the water inlet 11, and since the water inlet 11 is located above the anode 5, the inflowing water can blow away flocculated sediments on the cathode, so that the cathode is cleaned while the water is inflowing, and sediments affecting the electric flocculation effect are reduced.
Preferably, the cathode 4 is parallel to the overflow outlet 12, and the anode 5 is parallel to the inlet 11.
Preferably, the second shell 2 is of a double-layer structure, a heat-insulating interlayer is arranged between the two layers, the inner diameter of the heat-insulating interlayer is 14cm, the heat-insulating interlayer is not communicated with the working layer, a circulating water inlet 13 is formed in the lower part of one side of the heat-insulating interlayer, and a circulating water outlet 14 is formed in the upper part of the other side of the heat-insulating interlayer; the temperature of the second shell 2 is regulated and controlled by circulating water in and out of the heat-insulating interlayer, so that the reaction is facilitated.
Preferably, a cathode slot 15 is arranged on the side surface of the first shell 1, the cathode 4 is inserted into the first shell 1 through the cathode slot 15, an anode slot 16 is arranged on the side surface of the third shell 3, and the anode 5 is inserted into the third shell 3 through the anode slot 16; the slot type structure is convenient to disassemble and maintain.
Preferably, clamping platforms 17 are respectively arranged in the first shell 1, the top of the second shell 2 and the third shell 3, the cathode 4 is arranged on the clamping platform in the first shell 1, the anode 5 is arranged on the clamping platform in the third shell 3, a filler fixer 18 is arranged on the clamping platform of the second shell 2, and the filler fixer 18 is connected with the suspension ball filler 6 through a connecting rod or a connecting rope.
Preferably, the third housing 3 is provided with legs on the outside.
Preferably, the clamping table 17 is composed of two symmetrically arranged quarter rings, so that the electrode and the suspension ball filler can be stably fixed and are easy to replace.
Preferably, the filler fixer 18 is a mesh plate, and the mesh structure can be adapted to various connection modes, so that the suspended ball filler is more conveniently fixed.
Preferably, 3 suspension ball fillers 6 are sequentially connected through a connecting rod or a connecting rope from top to bottom, and the distance between every two adjacent suspension ball fillers 6 is 1-3 cm; the suspension ball fillers 6 which are longitudinally arranged can ensure the normal treatment of microorganisms and improve the electric flocculation effect.
Preferably, the cathode 4 is a graphite plate, the anode 5 is a titanium plate plated with ruthenium iridium coating, the carrier 7 is a strip-shaped graphite felt, the length of the graphite felt is 12cm, the width of the graphite felt is 3cm, and the magnet 8 is a neodymium iron boron magnet.
The utility model discloses theory of operation and working process: before the suspension ball filler 6 adsorbs the iron powder, the suspension ball filler 6 is placed into an activated sludge aerobic tank for biofilm culturing of microorganisms, and the suspension ball filler can be loaded into the device for use after acclimation for 7-14 days; the current applied between the polar plates of the device should not be too large, preferably below 10 mA; old landfill leachate (initial COD is about 4000mg/L, ammonia nitrogen concentration is about 800mg/L, turbidity is 300NUT, phosphate radical concentration is 12.4mg/L, sulfur ion concentration is 10 mg/L) is sent into the shell through the water inlet 11 and enters the main reaction zone in the shell of the device from the vicinity of the anode 5, iron powder can enter the device along with the water inlet of the water inlet 11 and is adsorbed on the suspension ball filler 6 through magnetic force, and the iron powder can be also adsorbed on the suspension ball filler 6 in advance before water inlet; the electrified electrode in the electric flocculation process comprises a cathode 4, an anode 5 and iron powder adsorbed on the outer surface of a carrier 7, wherein the iron powder is used as a sacrificial anode, the anode 5 is oxidized to generate oxygen, the oxygen is supplied to microorganisms, and one side of iron powder particles close to the anode 5 is induced into a cathode in an electric field to generate hydrogen for blowing off membrane pollution sediments on the surface of the biological membrane of the suspension ball filler 6 and reducing membrane pollution; one side of the iron powder particles close to the cathode 4 is induced into an anode in an electric field to generate an iron active flocculant to participate in an electric flocculation reaction; microorganisms attached to the biofilm filler rapidly consume COD and ammonia nitrogen under electrical stimulation, and the cathode 4 generates hydrogen to accelerate air flotation; the purified water is discharged from the overflow water outlet 12; floating slag and gas of the air floatation are discharged from an exhaust and slag discharge port 9, and settled flocs are accumulated at the bottom of the shell and can be discharged through a sludge discharge port 10; in the treatment process, the sacrificial anode does not need to be replaced and can be added along with the inlet water according to the observation treatment effect.
Claims (10)
1. The utility model provides a device of old landfill leachate of biomembrane and electric flocculation high efficiency processing, its characterized in that includes casing, negative pole (4), positive pole (5), suspension ball filler (6), carrier (7), magnet (8), the casing is the columnar structure, and the casing top is equipped with exhaust scum outlet (9), and the casing bottom is equipped with mud discharging outlet (10), and mud discharging outlet (10) are equipped with the valve, and casing side lower part is equipped with water inlet (11), and casing side upper portion is equipped with overflow delivery port (12), upper portion in the casing is located in negative pole (4), positive pole (5) locate the lower part in the casing, suspension ball filler (6) locate the middle part in the casing, carrier (7) dress is in suspension ball filler (6), carrier (7) inner seal is provided with magnet (8), and suspension ball filler (6) adsorb there is the iron powder.
2. The device for treating old landfill leachate with high efficiency by using the biological membrane and the electric flocculation according to claim 1 is characterized in that the shell consists of a first shell (1), a second shell (2) and a third shell (3) from top to bottom, the third shell (3) is of a cylindrical upper part and a hopper-shaped lower part, the first shell (1) and the second shell (2) and the second shell (3) are detachably connected through flanges, the cathode (4) is positioned in the first shell (1), the overflow water outlet (12) is positioned on the side surface of the first shell (1), the anode (5) is positioned in the third shell (3), the water inlet (11) is positioned on the side surface of the third shell (3), and the suspension ball filler (6) is positioned in the second shell (2).
3. The device for the efficient treatment of old landfill leachate by biofilm and electrocoagulation according to claim 1 or 2, characterized in that the cathode (4) is located below the overflow outlet (12) and the anode (5) is located below the water inlet (11).
4. The device for the efficient treatment of the aged landfill leachate by the biological membrane and the electric flocculation according to claim 2, wherein the second shell (2) has a double-layer structure, a heat-insulating interlayer is arranged between the two layers, the lower part of one side of the heat-insulating interlayer is provided with a circulating water inlet (13), and the upper part of the other side of the heat-insulating interlayer is provided with a circulating water outlet (14).
5. The device for the efficient treatment of the old landfill leachate by the biological membrane and the electric flocculation according to claim 2, wherein the first shell (1) is provided with a cathode slot (15) on the side, the cathode (4) is inserted into the first shell (1) through the cathode slot (15), the third shell (3) is provided with an anode slot (16) on the side, and the anode (5) is inserted into the third shell (3) through the anode slot (16).
6. The device for the efficient treatment of the aged landfill leachate by the biofilm and the electrocoagulation according to claim 2, wherein clamping platforms (17) are respectively arranged in the first shell (1), the top part in the second shell (2) and the third shell (3), the cathode (4) is arranged on the clamping platform in the first shell (1), the anode (5) is arranged on the clamping platform in the third shell (3), the clamping platform of the second shell (2) is provided with a filler fixer (18), and the filler fixer (18) is connected with the floating ball filler (6) through a connecting rod or a connecting rope.
7. The device for the efficient treatment of old landfill leachate by biofilm and electrocoagulation according to claim 6, wherein the clamping platform (17) is composed of two symmetrically arranged quarter-circle rings.
8. The device for the efficient treatment of old landfill leachate by biofilm and electrocoagulation according to claim 6, wherein the filler holder (18) is a mesh plate.
9. The device for treating the aged landfill leachate with the biological membrane and the electric flocculation in the claim 1 is characterized in that the number of the suspension ball fillers (6) is 3, the suspension ball fillers are sequentially connected through a connecting rod or a connecting rope from top to bottom, and the distance between every two adjacent suspension ball fillers (6) is 1-3 cm.
10. The device for the biofilm and electroflocculation high efficiency treatment of old landfill leachate according to claim 1, characterized in that the cathode (4) is a graphite plate, the anode (5) is a titanium plate plated with ruthenium iridium coating, the carrier (7) is a strip graphite felt, and the magnet (8) is a neodymium iron boron magnet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023202146.4U CN214115292U (en) | 2020-12-28 | 2020-12-28 | Device for efficiently treating aged landfill leachate through biological membrane and electric flocculation |
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|---|---|---|---|
| CN202023202146.4U CN214115292U (en) | 2020-12-28 | 2020-12-28 | Device for efficiently treating aged landfill leachate through biological membrane and electric flocculation |
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| CN214115292U true CN214115292U (en) | 2021-09-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112390478A (en) * | 2020-12-28 | 2021-02-23 | 昆明理工大学 | Device for efficiently treating aged landfill leachate through biological membrane and electric flocculation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112390478A (en) * | 2020-12-28 | 2021-02-23 | 昆明理工大学 | Device for efficiently treating aged landfill leachate through biological membrane and electric flocculation |
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