CN110066054A - Electric Fenton system and landfill leachate thick liquid processing method for the processing of landfill leachate dope - Google Patents
Electric Fenton system and landfill leachate thick liquid processing method for the processing of landfill leachate dope Download PDFInfo
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- CN110066054A CN110066054A CN201910433217.4A CN201910433217A CN110066054A CN 110066054 A CN110066054 A CN 110066054A CN 201910433217 A CN201910433217 A CN 201910433217A CN 110066054 A CN110066054 A CN 110066054A
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- fenton
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- cathode
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- 239000000149 chemical water pollutant Substances 0.000 title claims abstract description 29
- 239000007788 liquid Substances 0.000 title claims abstract description 15
- 238000003672 processing method Methods 0.000 title claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 70
- 230000004044 response Effects 0.000 claims abstract description 58
- 238000000034 method Methods 0.000 claims abstract description 44
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 36
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 36
- 230000008569 process Effects 0.000 claims abstract description 36
- 238000004062 sedimentation Methods 0.000 claims abstract description 22
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 19
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052742 iron Inorganic materials 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 13
- -1 iron ion Chemical class 0.000 claims abstract description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 10
- 239000010935 stainless steel Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 86
- 239000002351 wastewater Substances 0.000 claims description 68
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 38
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 33
- 239000000126 substance Substances 0.000 claims description 25
- 230000005611 electricity Effects 0.000 claims description 23
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 15
- 239000011790 ferrous sulphate Substances 0.000 claims description 15
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 15
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 15
- 239000003344 environmental pollutant Substances 0.000 claims description 9
- 231100000719 pollutant Toxicity 0.000 claims description 9
- 238000006722 reduction reaction Methods 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 235000014413 iron hydroxide Nutrition 0.000 claims description 8
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 claims description 8
- 239000005416 organic matter Substances 0.000 claims description 8
- 238000001556 precipitation Methods 0.000 claims description 8
- 230000000593 degrading effect Effects 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 6
- 230000001376 precipitating effect Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- 239000006228 supernatant Substances 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 2
- 230000009467 reduction Effects 0.000 abstract description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 6
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 abstract description 4
- 239000010802 sludge Substances 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 17
- 239000000460 chlorine Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 238000001728 nano-filtration Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 229910001448 ferrous ion Inorganic materials 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 239000010813 municipal solid waste Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical group [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 3
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 229910001424 calcium ion Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000013043 chemical agent Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229910001425 magnesium ion Inorganic materials 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000001458 anti-acid effect Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000000247 postprecipitation Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The present invention discloses a kind of electric Fenton system for the processing of landfill leachate dope, including electric Fenton device, circular response device and sedimentation basin, electric Fenton device includes electric Fenton device noumenon, anode, cathode and electrolysis power, the anode is made of DSA material, and cathode is made of stainless steel material；The circular response device includes reaction unit ontology and agitating device.Further, a kind of landfill leachate thick liquid processing method is also disclosed.The present invention couples electrolytic process with Fenton process, reduction based on cathode in electrolytic process, ferrous iron is converted by ferric iron, iron ion in system for recycling, molysite dosage during Fenton is effectively reduced, the technical issues of generating a large amount of sludge during conventional Fenton processing landfill leachate dope is solved.
Description
Technical field
The invention patent belongs to landfill leachate nanofiltration dope processing technology field, and in particular to a kind of Fenton class General Office
Manage the process system of nanofiltration dope.
Background technique
Fenton technology is a kind of common materialization technology for handling waste water, especially high concentration (the general 5000mg/L of COD
More than) wastewater treatment.Fenton processing technique generally requires the more chemical agent of addition (such as: H2O2, ferrous sulfate etc.), cause
The subsequent a large amount of iron cements of generation, meanwhile, the chemical agent of more amount is disposably added, side reaction in reaction process is also resulted in and occurs
Amount is big, and chemical agent is caused to waste, and increases landfill leachate disposed of in its entirety expense.
Summary of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of electric Fenton system and rubbish for the processing of landfill leachate dope
Rubbish percolate dope processing method couples electrolytic process with Fenton process, handles garbage filter to solve conventional Fenton
The technical issues of generating a large amount of sludge during liquid dope.
A kind of electric Fenton system for the processing of landfill leachate dope disclosed by the invention, based on cathode in electrolytic process
Reduction, convert ferrous iron for ferric iron, iron ion in system for recycling, molysite is used during effectively reducing Fenton
Amount is realized and generates a large amount of sludge problems during reducing Fenton processing landfill leachate dope.Specific technical solution is as follows:
Scheme 1: a kind of electric Fenton system for the processing of landfill leachate dope, including electric Fenton device, circular response
Device and sedimentation basin, in which: the electricity Fenton device includes electric Fenton device noumenon, anode, cathode and electrolysis power, the electricity
Fenton device noumenon is configured with the first water inlet and the first water outlet, and the anode is made of DSA material, and cathode is using stainless
Steel material production, the positive jointed anode of the electrolysis power, cathode connect cathode；The circular response device includes reaction dress
Set ontology and agitating device, the reaction unit ontology configured with the second water inlet, the second water outlet, circular response water inlet,
Circular response water outlet, the first dosing mouth and the second dosing mouth；The sedimentation basin has third water inlet, third water outlet and row
Cinder notch, the third water inlet are connect by pipeline with the second water outlet；Second water inlet connects waste water source by pipeline,
The circular response water inlet connects the first water inlet, and the circular response water outlet connects the first water inlet by pipeline；Institute
It states the second water outlet and third water inlet is connected by pipeline.
As a preferred embodiment, the electric Fenton device noumenon is the hollow cylindrical structure of stainless steel material production,
And the cathode as electric Fenton device uses；The anode is the cylindrical-shaped structure for being arranged vertically at cylinder center；Described first
Water inlet is arranged in the lower sides of the cylinder, and first water outlet is arranged in the upper portion side wall of cylinder；The electricity Fenton
The anode of device is the cylindrical-shaped structure for the DSA material production axially arranged along cylinder center.
As a preferred embodiment, the diameter of the cylinder is 200~300mm, and the body diameter is 20~30mm.
As a preferred embodiment, the circular response water outlet and the pipeline of the first water inlet connection are equipped with centrifugation
Pump；First water inlet is equipped with the deflector for tilting upward arrangement, for promoting the waste water for being pumped into electric Fenton device along circle
Cylinder inner wall eddy flow and on.
As a preferred embodiment, the system further include for add the first chemicals dosing plant of ferrous sulfate sulfuric acid solution and
For adding H2O2Second chemicals dosing plant of solution, first chemicals dosing plant pass through pipeline and the first metering pump and the first dosing
Mouth connection, second chemicals dosing plant are connect by pipeline and the second metering pump with the second dosing mouth.
As a preferred embodiment, which further includes the third chemicals dosing plant for adding NaOH solution, the third
Chemicals dosing plant passes through pipeline or sedimentation basin connection between pipeline and third metering pump and circular response slot and sedimentation basin.
Scheme 2: a kind of landfill leachate thick liquid processing method, based on described in scheme 1 be used for landfill leachate dope at
The electric Fenton system of reason, specifically includes:
Landfill leachate dope enters circular response device through the second water inlet, and ferrous sulfate is added by the first dosing mouth
Sulfuric acid solution, the pH value for adjusting waste water in circular response device is 2~4, while introducing Fe2+；Added respectively by the second dosing mouth
Enter H2O2Solution carries out Fenton's reaction in circular response device, by Fe2+It is changed into Fe3+, while the part COD that degrades；
Mixed liquor after Fenton's reaction enters electric Fenton device, and in electric Fenton device, the electrolysis of water occurs for anode:
H2O-2e→2H++1/2O2, the Direct Electrolysis of Cl-e → Cl and organic matter, anode surface generate Cl degrading waste water in
Ammoniacal nitrogen；Reduction reaction, 2H occur for cathode++2e→H2, while Fe3+It is reduced to Fe2+, Fe2+There are H in continuation and waste water2O2
Fenton's reaction, COD in further degrading waste water occurs；
The water outlet of electric Fenton device reenters circular response device, continuously adds H2O2Solution carries out Fenton's reaction, repeats
The above process, until the COD content in waste water is down to target value；
Waste water enters sedimentation basin through the second water outlet, is discharged after precipitation and separation.
As a preferred embodiment, this method further include:
It is down to the NaOH solution being added in the waste water of target value to pollutant, adjusts pH value to 7~8, by through precipitating
Iron ion is remained in processing removal waste water, supernatant liquor after precipitation enters next step treatment process through third water outlet, under
The iron hydroxide solid of portion's precipitating is handled through slag-drip opening outlet.
As a preferred embodiment, this method further include:
The iron hydroxide solid being settled out is adjusted back into pH value by sulfuric acid, re-dissolving iron hydroxide becomes rich in F3+'s
Then ferrum sulfuricum oxydatum solutum is reintroduced back to the electric Fenton system.
As a preferred embodiment, it controls in the current density that anode surface applies in 1000 A/m2~2000A/m2；Institute
State H2O2The concentration of solution is 25~36%；Ferrous sulfate and sulfuric acid solution concentration are 1:1 in the ferrous sulfate sulfuric acid solution；
The concentration of the NaOH solution is 20~30%.
The utility model has the advantages that
(1) present invention is directed to the technique of existing Fenton technical treatment percolate dope, by electrolysis process and Fenton technology into
Row coupling forms electric Fenton technology, replaces conventional Fenton technology, and the electric field action enhancing Fenton generated using electrolytic process is handled
Ferric iron is converted ferrous iron by waste water effect, the iron ion in system for recycling, the effective use for reducing ferrous ion
Amount, reduces the salinity of addition, reaches and landfill leachate concentration liquid is effectively treated, and overcome Fenton technical treatment rubbish infiltration
A large amount of sludge are led to the problem of when filtrate dope.
(2) during electro-Fenton reaction, cathode surface continuously discharges ferrous iron, makes H2O2It is reacted with ferrous iron and generates hydroxyl
Base free radical process more evenly, is conducive to hydroxyl radical free radical and adequately carries out mineralising reaction with organic matter, improve H2O2Utilization
Rate；Electric Fenton process simultaneously has open loop chain breaking process to macromolecular chain object and ring, and be conducive to improve waste water can
Biochemical；By adjusting the wastewater pH in system between 2~4, can prevent landfill leachate concentration liquid in be enriched with calcium and magnesium from
Son deposits scale problems in cathode surface, makes electric Fenton process can stable operation.
(3) electric Fenton device therein has preferable cathode reaction characteristic, is conducive to using stainless steel as cathode
Fe3+Toward Fe2+Conversion also there is certain antiacid etching characteristic while in the acid reaction environment that pH is 2~4；Using
DSA electrode avoids generating a large amount of iron cement fouling in electrolytic process as anode using Ferrious material as anode, and
The problem of anodic passivity influences the reaction efficiency of Fenton's reaction easily occurs.
(4) further by the special construction design of electric Fenton device, the eddy flow formed in electric Fenton device can make to give up
Water comes into full contact with cathode, improves ferric iron in cathode surface and is reduced into ferrous iron ability, to effectively improve H2O2And ferrous iron
Utilization rate in electric Fenton-like system, meanwhile, the ferrous iron not reacted away that electric Fenton process generates, into circular response slot
Afterwards, pass through the perturbation action of agitating device, continuation and H2O2Collective effect continues oxidative degradation pollutant.
(5) iron ion introduced in electric Fenton system, sulfuric acid solution liquid also can be used after precipitation and reacted, then convert
Electric Fenton system is reentered at ionic species to reuse, and further avoids the generation of excessive molysite solid waste.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of electricity Fenton system disclosed in embodiment；
Fig. 2 is the structural schematic diagram of electricity Fenton device disclosed in embodiment；
Electric Fenton device 1, anode 11, cathode 12 and electrolysis power 13, water inlet 14, water outlet 15, deflector 16, are followed
Ring reactive tank 2, water intake 21, circulating outlet 22, wastewater effluent mouth 23, circulation water inlet 24, hydrogen peroxide dosing mouth 25,
Dosing mouth 26, blender 27, sedimentation basin 3, inlet 31, leakage fluid dram 32 and slag-drip opening 33, hydrogen peroxide chemicals dosing plant 4, metering pump
41, ferrous sulfate sulfuric acid chemicals dosing plant 5, metering pump 51, sodium hydroxide chemicals dosing plant 6, metering pump 61, centrifugal pump 7.
Specific embodiment
As shown in Figure 1, disclosing a kind of electric Fenton system in embodiment 1, main includes electric Fenton device 1, circular response slot
2, sedimentation basin 3, hydrogen peroxide chemicals dosing plant 4, ferrous sulfate sulfuric acid chemicals dosing plant 5 and sodium hydroxide chemicals dosing plant 6.
As shown in connection with fig. 2, electric Fenton device 1 mainly includes anode 11, cathode 12 and electrolysis power 13.Anode 11 is to adopt
Cylindrical structure of the diameter made of DSA electrode between 20~30mm, cathode 12 are made diameter using 316L stainless steel and exist
Hollow cylindrical structure between 200~300mm；Anode 11 is located at 12 center of cathode, the high 1m~1.5m of cylinder.316L is not
There is preferable cathode reaction characteristic when becoming rusty steel as electric Fenton cathode, be conducive to Fe3+Toward Fe2+Conversion, while pH be 2
In~3 reaction environment, 316L stainless steel also has certain antiacid etching characteristic.Electrolysis power 13 is that can stablize to provide size
Negative terminals for the constant current regulated power supply of 1000~2000A, the positive terminal jointed anode 11 of power supply, power supply connect yin
Pole 12.Cathode 12, the i.e. bottom sidewall of hollow cylinder are equipped with water inlet 14, and top sidewall is equipped with water outlet 15.Preferably, into
The deflector 16 tilted upward can be arranged at being located inside electric Fenton in the mouth of a river 14 by welding manner, and deflector 16 can be used and yin
Extremely the same stainless steel material.After waste water is pumped into the water inlet 14 of electric Fenton device 1, the effect through deflector 16 is in the device
The state upward along barrel eddy flow is formed, is easier to the ferric iron generated during Fenton's reaction in circular response slot 2 in cathode
It is reduced to ferrous iron.
It should be noted that board-like electricity can be used in anode 11 and cathode 12 in electric Fenton device 1 in other embodiments
The mounting means of the design patterns such as pole, mesh electrode, anode and cathode is alternately arranged using conventional.Of the present invention
Embodiment in, in electric Fenton device 1, cathode 12 is directly designed to the shell of electric Fenton device, while increasing on shell
Deflector 16, the waste water for making to be pumped into electric Fenton device can Fe by the effect of deflector 16, in waste water3+Sufficiently in cathode
12 surfaces are in contact, and improve Fe3+Toward Fe2+Conversion rate；Cathode 12 can also simplify directly as the shell of electric Fenton device
The structure of electric Fenton device, reduces the volume of device.
The top of circular response slot 2 is equipped with water intake 21 and circulation water inlet 24, and bottom sidewall is equipped with cyclic water outlet
Mouth 22, the bottom side wall opposite with circulating outlet 22 are equipped with wastewater effluent mouth 23.Water intake 21 connects waste water source, circulation
Water outlet 22 is connect by pipeline with the water inlet 14 of electric Fenton device 1, and circulation water inlet 24 passes through pipeline and electric Fenton device 1
Water outlet 15 connect, wastewater effluent mouth 23 is connected by pipeline with sedimentation basin 3.The top of circular response slot 2 is additionally provided with dosing
Mouth 25 and dosing mouth 26, connect with hydrogen peroxide chemicals dosing plant 4 and ferrous sulfate sulfuric acid chemicals dosing plant 5 respectively.In circular response slot 2
It is also configured with blender 27, tank liquid is reacted for agitation cycle, accelerates the Fenton's reaction in circular response slot 2.
Sedimentation basin 3 is equipped with inlet 31, leakage fluid dram 32 and slag-drip opening 33.It is connected in the inlet 31 of circular response slot 2
Increase a threeway (not shown) on pipeline, connect the wastewater effluent mouth 23 of circular response slot 2 all the way, another way passes through meter
Amount pump 61 connection sodium hydroxide chemicals dosing plants 6, for adjusts be discharged waste liquid pH value, enter back into sedimentation basin 3 precipitated with
Remove the iron ion introduced.
Concentration is 25~36% (for example, the industrial dioxygen that concentration is 30% by metering pump 41 by hydrogen peroxide chemicals dosing plant 4
Water) H2O2It is pumped in circular response slot 2 and participates in electro-Fenton reaction.
Ferrous sulfate sulfuric acid chemicals dosing plant 5 passes through metering pump 51 for configured ferrous sulfate sulfuric acid solution (1mol/L sulphur
Sour ferrous and 1mol/L sulfuric acid solution configuration composition) it is pumped into circular response slot 2, adjust the pH value of waste water to 2~4, simultaneously
A certain amount of Fe is introduced in waste water2+, condition is provided for subsequent Fenton's reaction.Sodium hydroxide chemicals dosing plant 6 can pass through threeway
With the piping connection between circular response slot 2 and sedimentation basin 3, use metering pump 61 make the NaOH solution of concentration 20~30% into
Enter pipeline and sedimentation basin 3, so that water outlet is maintained at pH >=7, and remove remaining iron ion in waste water by coprecipitation mode.
Further, it is additionally provided with centrifugal pump 7 between circular response slot 2 and electric Fenton device 1, can makes to enter electric Fenton device
Waste water in 1 has larger flow, is further ensured that eddy flow state of the waste water in electric Fenton device 1.
In above-mentioned electric Fenton system: waste water carries out Fenton's reaction in circular response slot 2 first, the Fe newly introduced2+?
H of the pH under 2~3 acidic environment, with introducing2O2Fenton's reaction: Fe occurs2++H2O2→Fe3++(OH)-+ OH, Fenton are anti-
The organic matter in the degradable waste water of OH that should be generated in the process；Fenton's reaction stopped in circular response slot 2 20min~
30min, the Fe of introducing2+It is changed into Fe during Fenton's reaction3+, it is difficult to continue to participate in Fenton's reaction.
Fe is rich in after Fenton's reaction3+Waste water original work are gone back by electric 1 cathode of Fenton device into electric Fenton device 1
With: Fe3++e→Fe2+, the ferrous ion generated in electrolytic process, with H existing in waste water2O2Continue that Fenton's reaction occurs,
To H2O2Amount reduction is more obvious, passes through H2O2Medicine machine continues to add a certain amount of H in circular response slot 22O2, specifically may be used
According to the concentration of pollutant in detection circular response slot, H is carried out2O2Add, as far as possible guarantee hydrogen peroxide and waste water in COD ratio
Value is 1:1~3:1；Cathode surface also occurs simultaneously: 2H++e2→H2, therefore the acidity value constantly in consumption reaction system；In electricity
During Fenton's reaction, the electrolysis of water: H occurs for electrolytic anode2O-2e→2H++1/2O2, the H consumed by cathodic reduction can be supplemented+, meanwhile, anode also occurs chloride ion and is oxidized generation Active Chlorine: Cl-The degradable useless water part organic matter of-e → Cl, Cl
And ammoniacal nitrogen；Also in electrode surface Electrocatalytic Oxidation reaction can occur for useless water part organic matter, partial organic substances of degrading.Whole
In a electricity Fenton system, due to the H of anode and cathode+The electrolysis of the water of reduction and anode, pH value are balanced, in entire electricity
During Fenton's reaction, system pH value is without significant change.
Waste water to be processed enters circular response slot 2 through water intake 21, is adjusted and is recycled by ferrous sulfate sulfuric acid solution
In reactive tank 2 then the pH value of waste water is pumped into a certain amount of H between 2~4 in circular response slot 22O2, in circular response slot
Fenton's reaction: Fe occurs2++H2O2→Fe3++(OH)-+ OH, the OH that Fenton's reaction generates have high oxidizing potential, can oxygen
Change organic pollutant in waste water.Waste water in circular response slot 2 after reaction is flowed out through circulating outlet 22, is pumped by centrifugal pump 7
It send to electric Fenton device 1.
In electric Fenton device 1, the electrolytic process of water: H occurs for anode 112O+2e→2H++1/2O2, the oxidation of chlorine: Cl-
The direct oxidation degradation process of+e → Cl and partial organic substances；Reduction process mainly occurs for cathode 12, can will be due to Fenton
Reaction is changed into Fe3+It is reduced to Fe2+: Fe3++e→Fe2+, Fe2+Continuation and H2O2Fenton's reaction, degrading waste water occur for collective effect
Interior COD.
It should be noted that electric Fenton cathode is because entire electrolysis system is acidic environment, water will not occur for cathode surface
Electrolysis generates OH-Process, so, cathode cathode surface is not susceptible to the deposition of calcium ions and magnesium ions, and electric Fenton process can be steady in a long-term
Operation.Waste water in electric Fenton device 1 after reaction flows into circular response slot 2 through water outlet 15, and repeats the above reaction process；
Meanwhile the waste water generated in circular response slot 2, sedimentation basin 3 is flowed to by the wastewater effluent mouth 23 of 2 bottom of circular response slot.
Electric Fenton discharges water between sedimentation basin 3 in pipeline, and it is fragrant to adjust electricity by the sodium hydroxide lye that metering pump 61 is added
The pH value being discharged pause within the scope of 7~8, then enters sedimentation basin 3 through water inlet 31 and carries out precipitation process.In sedimentation basin 3,
Supernatant liquor after precipitating enters next step treatment process through leakage fluid dram 32, lower part solid precipitating then through 33 outlet of slag-drip opening at
Reason.
Embodiment 2 discloses a kind of landfill leachate thick liquid processing method, comprising the following steps:
Step S1: being pumped into circular response slot for landfill leachate nanofiltration dope, adjusts pH value between 2~4.
Specifically, landfill leachate nanofiltration concentrate is pumped into circular response slot, using ferrous sulfate sulfuric acid solution tune
PH value of waste water is saved in 2~4；While adjusting pH, Fe is introduced in waste water2+, reaction, which is provided, for subsequent Fenton's reaction adjusts.
Step S2: H is added in the waste water after obtaining adjusting pH to step S12O2, carry out Fenton's reaction.
In circular response slot, it is pumped into a certain amount of H2O2Solution is carried out using the Fenton's reaction condition that step S1 is constituted
Fenton's reaction, pollutant in degrading waste water；Specifically H can be adjusted according to the amount for entering pollutant in circular response slot waste water2O2's
Dosage；The control of Fenton's reaction residence time is in 20min~30min in circular response slot.
Step S3: step S2 is obtained into the waste water through Fenton's reaction and is pumped into electric Fenton device, carries out electro-Fenton reaction.
Waste water in circular response slot through Fenton's reaction is pumped into electric Fenton device, is applied in anode and cathode by adjusting
The current density size added controls the progress of electric Fenton process, controls in the current density that anode surface applies in 1000 A/m2
~2000A/m2；During electric Fenton, the electrolysis of water: H occurs for anode2O-2e→2H++1/2O2, Cl-e → Cl and organic matter
Direct Electrolysis process, anode surface generate the degradable waste water of Cl in ammoniacal nitrogen；2H mainly occurs for cathode++2e→H2,
Fe in waste water simultaneously3++e→Fe2+,Fe2+There are H in continuation and waste water2O2Fenton's reaction occurs；It is fragrant in electric Fenton-like system
Reaction is anti-raw between anode and cathode, and electric field is formed by between anode and cathode, can Fenton's reaction in enhancing system.Electricity therein
Fenton device is formed using DSA anode electrode and stainless steel cathode electrode.
Step S4: step S3 water outlet is sent to circular response slot 2, H is added2O2, continue Fenton's reaction.
Fe after electric Fenton device, in waste water2+Ion concentration obviously increases, and need to continue the addition in electric Fenton-like system
H2O2, make entirely to react lasting progress；By detecting after electro-Fenton reaction, the content of pollutant in waste water selects H2O2's
Additive amount.
Step S5: repeating step S3 and step S4, until the pollutant in electric Fenton system in landfill leachate dope is (main
Refer to COD) it is down to target value.
Step S3 and S4 process is repeated, that is, is repeated in the Fenton's reaction in circular response slot and in electric Fenton device
Electro-Fenton reaction discharged after pollutant is down to target value in waste water；
Step S6: being pumped to sedimentation basin 3 for the waste liquid in circular response slot 2, therebetween, will be discharged by pipe-line mixer
PH value is adjusted to 8 or so, and electric Fenton system is discharged in water outlet after precipitation.
During step S5 Chinese effluent, it is laggard pH in waste discharge need to be adjusted to 8 or so using sodium hydroxide solution
Enter in inclined-plate clarifying basin, realize the separation of solid waste and water, treated on upper layer, and electric Fenton system, lower layer's hydrogen-oxygen is discharged in waste water
Change the processing of iron precipitate outlet.
Wherein, nanofiltration concentrate refers to nanofiltration dope after percolate MBR technique, nanofiltration dope indication range: COD≤
6000mg/L, BOD5≤ 120mg/L, NH3- N≤20mg/L, TN≤200mg/L, calcium ion≤300mg/L, magnesium ion≤
1000mg/L, total silicon≤50mg/L, pH value: 6~9.
To sum up, the present invention can be converted ferrous iron for the ferric iron that Fenton's reaction generates, be had using electric Fenton technology
The usage amount of the reduction ferrous ion of effect；In electric Fenton device, reduction reaction occurs for cathode surface, and continuously discharges divalent
Iron makes H2O2It is reacted with ferrous iron and generates the process of hydroxyl radical free radical more evenly, be conducive to hydroxyl radical free radical adequately and organic matter
Mineralising reaction is carried out, H is improved2O2Utilization rate；By this electric Fenton technology, iron ion in reusable system is reduced
Salinity is added in waste water system, is conducive to after the processing of electric Fenton, the biochemical treatment process of waste water；The iron introduced in system from
After son is discharged out of system during post precipitation, the iron hydroxide solid through being settled out can be used sulfuric acid and carry out readjustment pH
Value, re-dissolving iron hydroxide becomes rich in F3+Ferrum sulfuricum oxydatum solutum, the electric Fenton system of front end is entered back into, by F3+Reduction
For F2+Again the electro-Fenton reaction of system is participated in, it is reusable, to avoid the generation of excessive molysite solid waste.
In addition, the cell reaction in being different from the prior art, anode is Ferrious material, and in electrolytic process, anode occurs
Dissolution generates ferrous ion and participates in during the Fenton's reaction of system, can equally generate a large amount of iron cement, while iron series sun
Anodic passivity process easily occurs in use for pole, and anode ferrous ion is difficult to continue generation, influences the anti-of Fenton's reaction
Answer efficiency.And in electro-Fenton reaction system of the invention, the electricity in Fenton and electric Fenton device occurred in circular response slot is fragrant
The process of pausing is reacted in acid condition (pH is between 2~4), and in electrolytic process, electric Fenton cathode is because of entire reaction system
For acidic environment, cathode surface is not susceptible to the deposition of calcium ions and magnesium ions, makes the operation that electric Fenton process can be steady in a long-term.Therefore,
The electricity Fenton system, can be improved H2O2Utilization efficiency, reduce iron cement yield, while reducing toward introducing more amount in waste water
Salinity improves the biodegradability of waste water.
Although embodiment of the present invention is described in conjunction with attached drawing above, the invention is not limited to above-mentioned
Specific embodiments and applications field, above-mentioned specific embodiment are only schematical, directiveness, rather than restricted
's.Those skilled in the art under the enlightenment of this specification, in the range for not departing from the claims in the present invention and being protected
In the case where, a variety of forms can also be made, these belong to the column of protection of the invention.
Claims (10)
1. a kind of electric Fenton system for the processing of landfill leachate dope, which is characterized in that anti-including electric Fenton device, circulation
Answer device and sedimentation basin, in which:
The electricity Fenton device includes electric Fenton device noumenon, anode, cathode and electrolysis power, and the electricity Fenton device noumenon is matched
It is equipped with the first water inlet and the first water outlet, the anode is made of DSA material, and cathode is made of stainless steel material, institute
The positive jointed anode of electrolysis power is stated, cathode connects cathode；
The circular response device includes reaction unit ontology and agitating device, and the reaction unit ontology is configured with the second water inlet
Mouth, the second water outlet, circular response water inlet, circular response water outlet, the first dosing mouth and the second dosing mouth；
The sedimentation basin has third water inlet, third water outlet and slag-drip opening, and the third water inlet passes through pipeline and second
Water outlet connection；
Second water inlet connects waste water source by pipeline, and the circular response water inlet connects the first water inlet, described to follow
Ring reacts water outlet and connects the first water inlet by pipeline；Second water outlet connects third water inlet by pipeline.
2. electricity Fenton system as described in claim 1, which is characterized in that the electricity Fenton device noumenon is stainless steel material system
The hollow cylindrical structure of work, and the cathode as electric Fenton device uses；The anode is to be arranged vertically at cylinder center
Cylindrical-shaped structure；First water inlet is arranged in the lower sides of the cylinder, and first water outlet is arranged in cylinder
Upper portion side wall；The anode of the electricity Fenton device is the cylindrical-shaped structure for the DSA material production axially arranged along cylinder center.
3. electricity Fenton system as claimed in claim 2, which is characterized in that the diameter of the cylinder is 200~300mm, described
Body diameter is 20~30mm.
4. electricity Fenton system as claimed in claim 2, which is characterized in that the circular response water outlet and the first water inlet connect
The pipeline connect is equipped with centrifugal pump；First water inlet is equipped with the deflector for tilting upward arrangement, is pumped into electricity for promoting
The waste water of Fenton device along cylinder inner wall eddy flow and on.
5. electricity Fenton system as described in claim 1, which is characterized in that further include for adding ferrous sulfate sulfuric acid solution
First chemicals dosing plant and for adding H2O2Second chemicals dosing plant of solution, first chemicals dosing plant pass through pipeline and the first meter
Amount pump is connect with the first dosing mouth, and second chemicals dosing plant is connect by pipeline and the second metering pump with the second dosing mouth.
6. electricity Fenton system as described in claim 1, which is characterized in that further include the third dosing for adding NaOH solution
Device, the third chemicals dosing plant pass through the pipeline or precipitating between pipeline and third metering pump and circular response slot and sedimentation basin
Pond connection.
7. a kind of landfill leachate thick liquid processing method, which is characterized in that based on use described in claim 1 to 6 any one
In the electric Fenton system of landfill leachate dope processing, specifically include:
Landfill leachate dope enters circular response device through the second water inlet, and ferrous sulfate sulfuric acid is added by the first dosing mouth
Solution, the pH value for adjusting waste water in circular response device is 2~4, while introducing Fe2+；It is separately added by the second dosing mouth
H2O2Solution carries out Fenton's reaction in circular response device, by Fe2+It is changed into Fe3+, while the part COD that degrades；
Mixed liquor after Fenton's reaction enters electric Fenton device, and in electric Fenton device, the electrolysis of water occurs for anode:
H2O-2e→2H++1/2O2, the Direct Electrolysis of Cl-e → Cl and organic matter, the Cl degrading waste water that anode surface generates
Interior ammoniacal nitrogen；Reduction reaction, 2H occur for cathode++2e→H2, while Fe3+It is reduced to Fe2+, Fe2+Continue to exist in waste water
H2O2Fenton's reaction, COD in further degrading waste water occurs；
The water outlet of electric Fenton device reenters circular response device, continuously adds H2O2Solution carries out Fenton's reaction, repeats above-mentioned
Process, until the COD content in waste water is down to target value；
Waste water enters sedimentation basin through the second water outlet, is discharged after precipitation and separation.
8. landfill leachate thick liquid processing method as claimed in claim 7, which is characterized in that further include:
It is down to the NaOH solution being added in the waste water of target value to pollutant, adjusts pH value to 7~8, by through precipitation process
It removes and remains iron ion in waste water, supernatant liquor after precipitation enters next step treatment process through third water outlet, and lower part is heavy
The iron hydroxide solid in shallow lake is handled through slag-drip opening outlet.
9. landfill leachate thick liquid processing method as claimed in claim 8, which is characterized in that further include:
The iron hydroxide solid being settled out is adjusted back into pH value by sulfuric acid, re-dissolving iron hydroxide becomes rich in F3+Sulfuric acid
Then ferrous solution is reintroduced back to the electric Fenton system.
10. the landfill leachate thick liquid processing method as described in claim 7 to 9 any one, which is characterized in that in anode table
The current density that face applies is controlled in 1000A/m2~2000A/m2；The H2O2The concentration of solution is 25~36%；The sulfuric acid
Ferrous sulfate and sulfuric acid solution concentration are 1:1 in ferrous sulfuric acid solution.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111253013A (en) * | 2020-03-13 | 2020-06-09 | 桂润环境科技股份有限公司 | Method and device for treating landfill leachate membrane concentrated solution |
| CN111320316A (en) * | 2020-03-13 | 2020-06-23 | 北京洁绿环境科技股份有限公司 | Landfill leachate membrane concentrated solution treatment method |
| CN112744961A (en) * | 2019-10-31 | 2021-05-04 | 南京理工大学 | Method for treating high organic nitrogen by cathode and anode in cooperation with electrocatalysis for improving efficiency of iron catalyst |
| CN113024001A (en) * | 2021-03-11 | 2021-06-25 | 浙江大学 | Electrochemical-based sequencing batch leachate integrated decarbonization and denitrification device and method thereof |
| CN114180686A (en) * | 2021-11-26 | 2022-03-15 | 广东溢丰环保集团股份有限公司 | Novel Fenton reactor |
| CN116282470A (en) * | 2023-02-16 | 2023-06-23 | 武汉天源环保股份有限公司 | Advanced treatment method for organic pollutants in landfill leachate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060029669A (en) * | 2006-03-17 | 2006-04-06 | 세림제지주식회사 | Wastewater treatment apparatus using electrolytic reduction type fenton process |
| CN2806437Y (en) * | 2005-05-19 | 2006-08-16 | 武汉大学 | Waste water treatment apparatus |
| CN102992453A (en) * | 2012-10-09 | 2013-03-27 | 南京中衡元环保设备有限公司 | Two-phase circulating catalytic oxidation device |
| CN108275753A (en) * | 2018-01-15 | 2018-07-13 | 辽宁科技大学 | A kind of processing method and its dedicated unit of landfill leachate film-filter concentration liquid |
| CN108911355A (en) * | 2018-05-31 | 2018-11-30 | 南京万德斯环保科技股份有限公司 | A kind of landfill leachate MBR goes out method for treating water and system |
| CN210237340U (en) * | 2019-05-23 | 2020-04-03 | 南京万德斯环保科技股份有限公司 | electro-Fenton system for treating landfill leachate concentrated solution |
-
2019
- 2019-05-23 CN CN201910433217.4A patent/CN110066054A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2806437Y (en) * | 2005-05-19 | 2006-08-16 | 武汉大学 | Waste water treatment apparatus |
| KR20060029669A (en) * | 2006-03-17 | 2006-04-06 | 세림제지주식회사 | Wastewater treatment apparatus using electrolytic reduction type fenton process |
| CN102992453A (en) * | 2012-10-09 | 2013-03-27 | 南京中衡元环保设备有限公司 | Two-phase circulating catalytic oxidation device |
| CN108275753A (en) * | 2018-01-15 | 2018-07-13 | 辽宁科技大学 | A kind of processing method and its dedicated unit of landfill leachate film-filter concentration liquid |
| CN108911355A (en) * | 2018-05-31 | 2018-11-30 | 南京万德斯环保科技股份有限公司 | A kind of landfill leachate MBR goes out method for treating water and system |
| CN210237340U (en) * | 2019-05-23 | 2020-04-03 | 南京万德斯环保科技股份有限公司 | electro-Fenton system for treating landfill leachate concentrated solution |
Non-Patent Citations (1)
| Title |
|---|
| 朱静平等: "《电化学水处理应用技术研究》", 中国环境科学出版社, pages: 304 - 87 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112744961A (en) * | 2019-10-31 | 2021-05-04 | 南京理工大学 | Method for treating high organic nitrogen by cathode and anode in cooperation with electrocatalysis for improving efficiency of iron catalyst |
| CN111253013A (en) * | 2020-03-13 | 2020-06-09 | 桂润环境科技股份有限公司 | Method and device for treating landfill leachate membrane concentrated solution |
| CN111320316A (en) * | 2020-03-13 | 2020-06-23 | 北京洁绿环境科技股份有限公司 | Landfill leachate membrane concentrated solution treatment method |
| CN113024001A (en) * | 2021-03-11 | 2021-06-25 | 浙江大学 | Electrochemical-based sequencing batch leachate integrated decarbonization and denitrification device and method thereof |
| CN113024001B (en) * | 2021-03-11 | 2024-01-23 | 浙江大学 | Sequencing batch leachate integrated carbon and nitrogen removal device and method based on electrochemistry |
| CN114180686A (en) * | 2021-11-26 | 2022-03-15 | 广东溢丰环保集团股份有限公司 | Novel Fenton reactor |
| CN116282470A (en) * | 2023-02-16 | 2023-06-23 | 武汉天源环保股份有限公司 | Advanced treatment method for organic pollutants in landfill leachate |
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