CN111362393A - Advanced oxidation technology for treating pyridine-containing organic wastewater - Google Patents
Advanced oxidation technology for treating pyridine-containing organic wastewater Download PDFInfo
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- CN111362393A CN111362393A CN202010315741.4A CN202010315741A CN111362393A CN 111362393 A CN111362393 A CN 111362393A CN 202010315741 A CN202010315741 A CN 202010315741A CN 111362393 A CN111362393 A CN 111362393A
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- pyridine
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- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 title claims abstract description 150
- 239000002351 wastewater Substances 0.000 title claims abstract description 80
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 230000003647 oxidation Effects 0.000 title claims abstract description 63
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 63
- 238000005516 engineering process Methods 0.000 title claims abstract description 25
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 48
- 238000002156 mixing Methods 0.000 claims description 46
- 238000006243 chemical reaction Methods 0.000 claims description 41
- 239000003054 catalyst Substances 0.000 claims description 33
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 32
- 230000003197 catalytic effect Effects 0.000 claims description 32
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000001914 filtration Methods 0.000 claims description 27
- 239000008367 deionised water Substances 0.000 claims description 22
- 229910021641 deionized water Inorganic materials 0.000 claims description 22
- 238000001035 drying Methods 0.000 claims description 21
- 238000002360 preparation method Methods 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 21
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 20
- 239000007789 gas Substances 0.000 claims description 20
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 claims description 18
- 150000003839 salts Chemical class 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 16
- 238000007598 dipping method Methods 0.000 claims description 16
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 claims description 16
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000008394 flocculating agent Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 9
- BAWHYOHVWHQWFQ-UHFFFAOYSA-N 1-naphthalen-1-ylpyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C1=CC=CC2=CC=CC=C12 BAWHYOHVWHQWFQ-UHFFFAOYSA-N 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 8
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 8
- 238000009835 boiling Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- IBWXKMBLEOLOLY-UHFFFAOYSA-N dimethoxy(prop-2-enyl)silicon Chemical compound CO[Si](OC)CC=C IBWXKMBLEOLOLY-UHFFFAOYSA-N 0.000 claims description 8
- 230000003311 flocculating effect Effects 0.000 claims description 8
- 230000001678 irradiating effect Effects 0.000 claims description 8
- 230000007935 neutral effect Effects 0.000 claims description 8
- 229910017604 nitric acid Inorganic materials 0.000 claims description 8
- 230000001376 precipitating effect Effects 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 8
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- 108010010803 Gelatin Proteins 0.000 claims description 6
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 6
- 229920000159 gelatin Polymers 0.000 claims description 6
- 239000008273 gelatin Substances 0.000 claims description 6
- 235000019322 gelatine Nutrition 0.000 claims description 6
- 235000011852 gelatine desserts Nutrition 0.000 claims description 6
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 6
- CMOAHYOGLLEOGO-UHFFFAOYSA-N oxozirconium;dihydrochloride Chemical compound Cl.Cl.[Zr]=O CMOAHYOGLLEOGO-UHFFFAOYSA-N 0.000 claims description 6
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 5
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical group Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 5
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 4
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 4
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical class [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- XVMSFILGAMDHEY-UHFFFAOYSA-N 6-(4-aminophenyl)sulfonylpyridin-3-amine Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=N1 XVMSFILGAMDHEY-UHFFFAOYSA-N 0.000 description 14
- 238000010521 absorption reaction Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 239000012071 phase Substances 0.000 description 8
- 150000003222 pyridines Chemical class 0.000 description 8
- 230000015556 catabolic process Effects 0.000 description 7
- 238000006731 degradation reaction Methods 0.000 description 7
- 229910001868 water Inorganic materials 0.000 description 6
- 238000005406 washing Methods 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 4
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229960000583 acetic acid Drugs 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012362 glacial acetic acid Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 2
- 238000000053 physical method Methods 0.000 description 2
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-O pyridinium Chemical compound C1=CC=[NH+]C=C1 JUJWROOIHBZHMG-UHFFFAOYSA-O 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 1
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 1
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical compound [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 239000003398 denaturant Substances 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000013048 microbiological method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- -1 nitrogen-containing heterocyclic compound Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/06—Halogens; Compounds thereof
- B01J27/135—Halogens; Compounds thereof with titanium, zirconium, hafnium, germanium, tin or lead
-
- B01J35/39—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/34—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation
- B01J37/341—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation
- B01J37/343—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation of ultrasonic wave energy
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- 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
- C02F2305/10—Photocatalysts
Abstract
The invention relates to the field of environmental protection, in particular to an advanced oxidation technology for treating pyridine-containing organic wastewater; the invention relates to an advanced oxidation technology for treating pyridine-containing organic wastewater, and provides an advanced oxidation technology for treating pyridine-containing organic wastewater.
Description
Technical Field
The invention relates to the field of environmental protection, in particular to an advanced oxidation technology for treating pyridine-containing organic wastewater.
Background
Pyridine can be used as a denaturant and an auxiliary dye in industry, and can be used as a raw material for synthesizing a series of products (including medicines, disinfectants, dyes and the like), and the application range is very wide; however, pyridine belongs to a nitrogen-containing heterocyclic compound, is highly toxic and difficult to degrade, and is a typical 'three-cause' substance. The treatment technology of pyridine-containing organic wastewater is concerned.
CN105000616B discloses a method for removing residual pyridine in wastewater, which comprises heating the wastewater to 60-65 ℃ in a pyridine-containing wastewater treatment system, and adjusting the pH value of the wastewater to 11-12 by alkali to convert pyridinium into pyridine. Introducing air into the pyridine-containing wastewater by adopting a gas stripping method to convert residual pyridine in the wastewater from a liquid phase to a gas phase, and collecting the pyridine-containing gas to incinerate the pyridine-containing gas by using an RTO incinerator. The removal rate of pyridine in the wastewater is more than 98 percent. The invention utilizes a blow-off method to introduce air into the wastewater, changes the equilibrium relationship established by dissolving organic pyridine in water, transfers pyridine in a water phase into a gas phase to convert pyridine salt into pyridine, collects the blown-off pyridine-containing air and uses an RTO incinerator for incineration treatment, and the pyridine in the gas phase is oxidized into water, carbon dioxide and nitrogen dioxide to be discharged after incineration, thereby fundamentally removing the pyridine in the wastewater and eliminating secondary pollution.
CN105000616A discloses a method for removing residual pyridine in wastewater, which comprises heating the wastewater to 60-65 ℃ in a pyridine-containing wastewater treatment system, and adjusting the pH value of the wastewater to 11-12 by alkali to convert pyridinium into pyridine. Introducing air into the pyridine-containing wastewater by adopting a gas stripping method to convert residual pyridine in the wastewater from a liquid phase to a gas phase, and collecting the pyridine-containing gas to incinerate the pyridine-containing gas by using an RTO incinerator. The removal rate of pyridine in the wastewater is more than 98 percent. The invention utilizes a blow-off method to introduce air into the wastewater, changes the equilibrium relationship established by dissolving organic pyridine in water, transfers pyridine in a water phase into a gas phase to convert pyridine salt into pyridine, collects the blown-off pyridine-containing air and uses an RTO incinerator for incineration treatment, and the pyridine in the gas phase is oxidized into water, carbon dioxide and nitrogen dioxide to be discharged after incineration, thereby fundamentally removing the pyridine in the wastewater and eliminating secondary pollution.
CN102923917A discloses a wastewater treatment method, in particular to a treatment method of wastewater containing pyridine and pyridine derivatives. The method can recycle the co-metabolism substrate and comprises the following steps: A. pretreating wastewater with pyridine and pyridine derivatives as main organic components to remove suspended matters and solids and adjust salinity, pH value and contents of pyridine and pyridine derivatives; B. performing anaerobic co-metabolism treatment on the pretreated wastewater by using nitrate and nitrite as co-metabolism substrates; C. firstly, carrying out aerobic nitrification treatment on the wastewater subjected to anaerobic co-metabolism treatment, then refluxing and adding nitrate and nitrite generated by aerobic nitrification reaction to the step B as a co-metabolism substrate, and if the nitrate and nitrite added in a refluxing manner in the step B cannot meet the requirements of the step B, adding nitrate and nitrite for supplementation; D. and carrying out advanced treatment on the treated wastewater to further remove residual pollutants.
The above patents and the prior art generally adopt physical methods and microbiological methods to remove the waste water, but the physical method for removing pyridine has large energy consumption, high cost and poor treatment effect; the pyridine is degraded by adopting a biological method, and the degradation effect is influenced and the treatment effect is not ideal because microorganisms are inhibited by substances which are difficult to degrade in high-concentration wastewater.
Disclosure of Invention
In order to solve the problems, the invention provides an advanced oxidation technology for treating pyridine-containing organic wastewater.
An advanced oxidation technology for treating pyridine-containing organic wastewater, which comprises the following specific preparation scheme:
firstly, adding sulfuric acid with the mass percentage concentration of 5-20% into organic wastewater containing pyridine, adjusting the pH value to 2-5, and then adding ferric salt, manganese dioxide and hydrogen peroxide into the wastewater, wherein the adding amount of the ferric salt is 18-46g/m3The addition amount of manganese dioxide is 5-16g/m3The adding amount of the hydrogen peroxide is 10-35g/m3(ii) a Stirring, heating to 30-45 deg.C, adding ultraviolet catalytic oxidation catalyst in an amount of 10-100 g/m3(ii) a After the reaction is finished, ultraviolet light is used for irradiating the reaction, the temperature is controlled to be 40-60 ℃, and the reaction is carried out for 30-60 min; the intensity of the ultraviolet light is 8-15mW cm-2(ii) a Filtering out solid after the reaction is finished, then adding sodium hydroxide solution to adjust the pH value to 8-11, adding a flocculating agent, flocculating and precipitating, and filtering to finish the oxidation treatment of the pyridine-containing organic wastewater.
The ultraviolet light catalytic oxidation catalyst is a catalytic oxidation catalyst, and the preparation method comprises the following steps:
adding 15-38 parts by mass of mesoporous silica into 100 parts by mass of 150 parts by mass of 8% -15% nitric acid solution, controlling the temperature to be 80-100 ℃, boiling and soaking for 60-180min, and then cleaning with deionized water to be neutral and drying; adding 4.8-8.2 parts of tetraisopropyl titanate and 180 parts of 150-180 parts of absolute ethyl alcohol into a mixing kettle, then uniformly mixing 3.2-6.1 parts of zirconium oxychloride, 2-6 parts of synergist, 50-80 parts of deionized water and 80-100 parts of absolute ethyl alcohol, then adding into the mixing kettle, uniformly mixing, adding the treated activated carbon into the mixing kettle, stirring uniformly, ultrasonically dipping for 10-30min, then filtering, drying at 80-120 ℃, and repeatedly dipping for 3-6 times; then treating at the temperature of 120-150 ℃ for 5-8h, controlling the temperature at the temperature of 500-800 ℃ for 2-5h under the condition of protective gas, and cooling to room temperature to obtain the catalytic oxidation catalyst.
According to the mass portion, 5-12 portions of divinylbenzene, 10-18 portions of allyl dimethoxy silane, 0.12-0.48 portion of chloroplatinic acid, 200 portions of N-butyl alcohol, 100 portions of N-butyl alcohol, are added into a reaction kettle and mixed and stirred for 2-5 hours at the temperature of 60-72 ℃, 20-32 portions of N- (1-naphthyl) -maleimide, 500 portions of deionized water, 0.5-2 portions of gelatin, 0.5-2 portions of ammonium persulfate, and are mixed and stirred for 2-5 hours at the temperature of 80-95 ℃, and then are filtered and dried to obtain the synergist.
The reaction mechanism of the synergist is as follows:
the ferric iron salt is ferric chloride or ferric sulfate or ferric nitrate.
The mass percentage concentration of the sodium hydroxide solution is 20-40%.
The flocculant is polyaluminium chloride or polyaluminium sulfate or polyferric chloride or polyferric sulfate.
The addition amount of the flocculating agent is 1-25 g/m3。
The ultraviolet light irradiation adopts vertical irradiation.
The invention relates to an advanced oxidation technology for treating pyridine-containing organic wastewater, and provides an advanced oxidation technology for treating pyridine-containing organic wastewater.
The addition compound of N- (1-naphthyl) -maleimide/divinylbenzene/allyldimethoxysilane is hydrolyzed under acidic condition and condensed with the surface hydroxyl of titanium dioxide, and when the addition compound is catalyzed and oxidized in waste water, the addition compound has high compatibility with pyridine compounds, the concentration of the pyridine compounds contacted with the catalyst is higher, and the pyridine compounds can be enriched on the surface of the catalytic and oxidative catalyst, thereby improving the photocatalytic efficiency.
Drawings
FIG. 1 is a Fourier infrared spectrum of the synergist product prepared in example 1.
As is clear from the above figure, the presence of a peak of absorption by stretching and contraction of the carbonyl group of the carboxyl group in the vicinity of 1772cm-1, a peak of absorption by bending in the COH plane of the carboxylic acid in the vicinity of 1443cm-1, a peak of absorption by stretching and contraction of the COH in the carboxyl group in the vicinity of 1359cm-1, a peak of absorption by single bond C-O of the carboxyl group and single bond carbon nitrogen of the amide in the vicinity of 1252cm-1, a peak of absorption by bending out of the OH plane of the carboxylic acid in the vicinity of 927cm-1, and a peak of absorption by stretching and contraction of the carbonyl group of the imide in the vicinity of 1682cm-1 suggests that N- (; the stretching absorption peak of silicon oxygen exists near 1100cm < -1 >, and the stretching absorption peak of silicon carbon exists near 760cm < -1 >, so that the allyl dimethoxysilane participates in the reaction; an absorption peak of the aromatic ring skeleton was present in the vicinity of 1594cm-1, indicating that divinylbenzene and N- (1-naphthyl) -maleimide participated in the reaction.
Detailed Description
The invention is further illustrated by the following specific examples:
the experiment adopts a waste liquid experiment with pyridine concentration of 20mg/L and adopts an ultraviolet spectrophotometry to detect COD in the waste waterCrA value; CODCrThe determination is carried out by a potassium dichromate method.
Example 1
An advanced oxidation technology for treating pyridine-containing organic wastewater, which comprises the following specific preparation scheme:
firstly, adding sulfuric acid with the mass percentage concentration of 5% into organic wastewater containing pyridine, adjusting the pH value to be 5, and then adding ferric salt, manganese dioxide and hydrogen peroxide into the wastewater, wherein the adding amount of the ferric salt is 18g/m3The amount of manganese dioxide added is 5g/m3The amount of hydrogen peroxide added is 10g/m3(ii) a Stirring, heating to 35 deg.C, adding ultraviolet catalytic oxidation catalyst in an amount of 10g/m3(ii) a After the reaction is finished, ultraviolet light is used for irradiating the reaction, the temperature is controlled at 40 ℃, and the reaction is carried out for 30 min; the intensity of the ultraviolet light is 8mW cm-2(ii) a Filtering out solid after the reaction is finished, then adding sodium hydroxide solution to adjust the pH value to 8, adding a flocculating agent, flocculating and precipitating, and filtering to finish the oxidation treatment of the pyridine-containing organic wastewater.
The ultraviolet light catalytic oxidation catalyst is a catalytic oxidation catalyst, and the preparation method comprises the following steps:
adding 15g of mesoporous silica into 100g of nitric acid solution with the mass percentage concentration of 8%, controlling the temperature at 80 ℃, boiling for 60min, and then washing with deionized water until the solution is neutral and drying; adding 4.8g of tetraisopropyl titanate and 150g of absolute ethyl alcohol into a mixing kettle, then uniformly mixing 3.2g of zirconium oxychloride, 2g of synergist, 50g of deionized water and 80g of absolute ethyl alcohol, then adding into the mixing kettle, uniformly mixing, then adding the treated activated carbon into the mixing kettle, uniformly stirring, ultrasonically dipping for 10min, then filtering, drying at 80 ℃, and repeatedly dipping for 3 times; then treating the mixture for 5 hours at 120 ℃, controlling the temperature to be 500 ℃ for high-temperature treatment for 2 hours under the condition of protective gas, and cooling the treated mixture to room temperature to obtain the catalytic oxidation catalyst.
The preparation method of the synergist comprises the following steps: 5g of divinylbenzene, 10g of allyldimethoxysilane, 0.12g of chloroplatinic acid and 100g of N-butanol are added into a reaction kettle and mixed and stirred for 2 hours at the temperature of 60 ℃, 20g of N- (1-naphthyl) -maleimide, 200g of deionized water, 0.5g of gelatin and 0.5g of ammonium persulfate are added and mixed and stirred for 2 hours at the temperature of 80 ℃, and the synergist is obtained by filtering and drying.
The ferric salt is ferric chloride.
The mass percentage concentration of the sodium hydroxide solution is 20%.
The flocculant is polyaluminium chloride.
The addition amount of the flocculant is 1g/m3。
The ultraviolet light irradiation adopts vertical irradiation.
The pyridine content in the treated wastewater is 1.22mg/L, and the pyridine degradation rate is 93.9%.
Example 2
An advanced oxidation technology for treating pyridine-containing organic wastewater, which comprises the following specific preparation scheme:
firstly, adding sulfuric acid with the mass percentage concentration of 15% into organic wastewater containing pyridine, adjusting the pH value to 3, and then adding ferric salt, manganese dioxide and hydrogen peroxide into the wastewater, wherein the adding amount of the ferric salt is 26g/m3The amount of manganese dioxide added is 9g/m3The amount of hydrogen peroxide added is 25g/m3(ii) a Stirring, heating to 40 deg.C, adding ultraviolet catalytic oxidation catalyst in an amount of 50g/m3(ii) a After the reaction is finished, ultraviolet light is used for irradiating the reaction, the temperature is controlled at 50 ℃, and the reaction lasts 40 min; the intensity of the ultraviolet light is 12mW cm-2(ii) a Filtering out solid after the reaction is finished, then adding sodium hydroxide solution to adjust the pH value to 9, adding a flocculating agent, flocculating and precipitating, and filtering to finish the oxidation treatment of the pyridine-containing organic wastewater.
The ultraviolet light catalytic oxidation catalyst is a catalytic oxidation catalyst, and the preparation method comprises the following steps:
adding 24g of mesoporous silica into 130g of nitric acid solution with the mass percentage concentration of 12%, controlling the temperature at 90 ℃, boiling for 120min, and cleaning with deionized water to be neutral and drying; adding 6.5g of tetraisopropyl titanate and 170g of absolute ethyl alcohol into a mixing kettle, then uniformly mixing 4.8g of zirconium oxychloride, 3g of synergist, 60g of deionized water and 90g of absolute ethyl alcohol, then adding into the mixing kettle, uniformly mixing, then adding the treated activated carbon into the mixing kettle, uniformly stirring, ultrasonically dipping for 20min, then filtering, drying at 100 ℃, and repeatedly dipping for 5 times; then treating for 6h at 140 ℃, then treating for 3h at 600 ℃ under the condition of protective gas, and cooling to room temperature to obtain the catalytic oxidation catalyst.
The preparation method of the synergist comprises the following steps: adding 8g of divinylbenzene, 12g of allyldimethoxysilane, 0.33g of chloroplatinic acid and 120g of N-butanol into a reaction kettle, mixing and stirring for 3 hours at 65 ℃, adding 25g of N- (1-naphthyl) -maleimide, 300g of deionized water, 0.8g of gelatin, 0.9g of ammonium persulfate, mixing and stirring for 3 hours at 85 ℃, filtering and drying to obtain the synergist.
150g of n-butanol, mixing for 2-5 hours at 64 ℃, evaporating and drying to obtain the synergist.
The ferric iron salt is ferric sulfate.
The mass percentage concentration of the sodium hydroxide solution is 30%.
The flocculant is polyaluminium sulfate.
The addition amount of the flocculant is 12 g/m3。
The ultraviolet light irradiation adopts vertical irradiation.
The pyridine content in the treated wastewater is 0.96mg/L, and the pyridine degradation rate is 95.2%.
Example 3
An advanced oxidation technology for treating pyridine-containing organic wastewater, which comprises the following specific preparation scheme:
firstly, adding sulfuric acid with the mass percentage concentration of 20% into organic wastewater containing pyridine, adjusting the pH value to be 2, and then adding ferric salt, manganese dioxide and hydrogen peroxide into the wastewater, wherein the adding amount of the ferric salt is 46g/m3The addition amount of manganese dioxide is 16g/m3The amount of hydrogen peroxide added was 35g/m3(ii) a Stirring deviceUniformly stirring, heating to 45 ℃, and then adding an ultraviolet light catalytic oxidation catalyst in an amount of 100 g/m3(ii) a After the reaction is finished, ultraviolet light is used for irradiating the reaction, the temperature is controlled at 60 ℃, and the reaction lasts for 30-60 min; the intensity of the ultraviolet light is 15mW cm-2(ii) a Filtering out solid after the reaction is finished, then adding sodium hydroxide solution to adjust the pH value to 11, adding a flocculating agent, flocculating and precipitating, and filtering to finish the oxidation treatment of the pyridine-containing organic wastewater.
The ultraviolet light catalytic oxidation catalyst is a catalytic oxidation catalyst, and the preparation method comprises the following steps:
adding 38g of mesoporous silica into 150g of nitric acid solution with the mass percentage concentration of 15%, controlling the temperature to be 100 ℃, boiling for 180min, and then washing with deionized water until the solution is neutral and drying; adding 8.2g of tetraisopropyl titanate and 180g of absolute ethyl alcohol into a mixing kettle, then uniformly mixing 6.1g of zirconium oxychloride, 6g of synergist, 80g of deionized water and 100g of absolute ethyl alcohol, then adding into the mixing kettle, uniformly mixing, then adding the treated activated carbon into the mixing kettle, uniformly stirring, ultrasonically dipping for 30min, then filtering, drying at 120 ℃, and repeatedly dipping for 6 times; then treating for 8h at 150 ℃, controlling the temperature to be 800 ℃ for high-temperature treatment for 5h under the condition of protective gas, and cooling to room temperature after the treatment to obtain the catalytic oxidation catalyst.
12g of divinylbenzene, 18g of allyl dimethoxy silane, 0.48g of chloroplatinic acid and 200g of N-butanol are added into a reaction kettle and mixed and stirred for 5 hours at 72 ℃, 32g of N- (1-naphthyl) -maleimide, 500g of deionized water, 2g of gelatin, 2g of ammonium persulfate and mixed and stirred for 2 to 5 hours at 95 ℃, and then the mixture is filtered and dried to obtain the synergist.
The ferric salt is ferric nitrate.
The mass percentage concentration of the sodium hydroxide solution is 40%.
The flocculating agent is polymeric ferric sulfate.
The addition amount of the flocculant is 25g/m3。
The ultraviolet light irradiation adopts vertical irradiation.
The pyridine content in the treated wastewater is 0.38mg/L, and the pyridine degradation rate is 98.1%.
Comparative example 1
An advanced oxidation technology for treating pyridine-containing organic wastewater, which comprises the following specific preparation scheme:
firstly, adding sulfuric acid with the mass percentage concentration of 5% into organic wastewater containing pyridine, adjusting the pH value to be 5, and then adding manganese dioxide and hydrogen peroxide into the wastewater, wherein the adding amount of the manganese dioxide is 5g/m3The amount of hydrogen peroxide added is 10g/m3(ii) a Stirring, heating to 35 deg.C, adding ultraviolet catalytic oxidation catalyst in an amount of 10g/m3(ii) a After the reaction is finished, ultraviolet light is used for irradiating the reaction, the temperature is controlled at 40 ℃, and the reaction is carried out for 30 min; the intensity of the ultraviolet light is 8mW cm-2(ii) a Filtering out solid after the reaction is finished, then adding sodium hydroxide solution to adjust the pH value to 8, adding a flocculating agent, flocculating and precipitating, and filtering to finish the oxidation treatment of the pyridine-containing organic wastewater.
The ultraviolet light catalytic oxidation catalyst is a catalytic oxidation catalyst, and the preparation method comprises the following steps:
adding 15g of mesoporous silica into 100g of nitric acid solution with the mass percentage concentration of 8%, controlling the temperature at 80 ℃, boiling for 60min, and then washing with deionized water until the solution is neutral and drying; adding 4.8g of tetraisopropyl titanate and 150g of absolute ethyl alcohol into a mixing kettle, then uniformly mixing 3.2g of zirconium oxychloride, 2g of synergist, 50g of deionized water and 80g of absolute ethyl alcohol, then adding into the mixing kettle, uniformly mixing, then adding the treated activated carbon into the mixing kettle, uniformly stirring, ultrasonically dipping for 10min, then filtering, drying at 80 ℃, and repeatedly dipping for 3 times; then treating the mixture for 5 hours at 120 ℃, controlling the temperature to be 500 ℃ for high-temperature treatment for 2 hours under the condition of protective gas, and cooling the treated mixture to room temperature to obtain the catalytic oxidation catalyst.
The preparation method of the synergist comprises the following steps: adding 5g of divinylbenzene, 10g of allyl dimethoxy silane, 0.12g of chloroplatinic acid and 100g of n-butanol into a reaction kettle, mixing for 2-5 hours at 60 ℃, evaporating and drying to obtain the synergist.
The mass percentage concentration of the sodium hydroxide solution is 20%.
The flocculant is polyaluminium chloride.
The addition amount of the flocculant is 1g/m3。
The ultraviolet light irradiation adopts vertical irradiation.
The pyridine content in the treated wastewater is 5.82mg/L, and the pyridine degradation rate is 86.4%.
Comparative example 2
An advanced oxidation technology for treating pyridine-containing organic wastewater, which comprises the following specific preparation scheme:
firstly, adding sulfuric acid with the mass percentage concentration of 5% into organic wastewater containing pyridine, adjusting the pH value to be 5, and then adding ferric salt, manganese dioxide and hydrogen peroxide into the wastewater, wherein the adding amount of the ferric salt is 18g/m3The amount of manganese dioxide added is 5g/m3The amount of hydrogen peroxide added is 10g/m3(ii) a Heating to 35 deg.C after stirring, and then irradiating with ultraviolet light for reaction at 40 deg.C for 30 min; the intensity of the ultraviolet light is 8mW cm-2(ii) a Filtering out solid after the reaction is finished, then adding sodium hydroxide solution to adjust the pH value to 8, adding a flocculating agent, flocculating and precipitating, and filtering to finish the oxidation treatment of the pyridine-containing organic wastewater.
The ultraviolet light catalytic oxidation catalyst is a catalytic oxidation catalyst, and the preparation method comprises the following steps:
adding 15g of mesoporous silica into 100g of nitric acid solution with the mass percentage concentration of 8%, controlling the temperature at 80 ℃, boiling for 60min, and then washing with deionized water until the solution is neutral and drying; adding 4.8g of tetraisopropyl titanate and 150g of absolute ethyl alcohol into a mixing kettle, then uniformly mixing 2.4g of glacial acetic acid, 50g of deionized water and 80g of absolute ethyl alcohol, then adding into the mixing kettle, uniformly mixing, then adding the treated activated carbon into the mixing kettle, uniformly stirring, ultrasonically dipping for 10min, then filtering, drying at 80 ℃, and repeatedly dipping for 3 times; then treating the mixture for 5 hours at 120 ℃, controlling the temperature to be 500 ℃ for high-temperature treatment for 2 hours under the condition of protective gas, and cooling the treated mixture to room temperature to obtain the catalytic oxidation catalyst.
The ferric salt is ferric chloride.
The mass percentage concentration of the sodium hydroxide solution is 20%.
The flocculant is polyaluminium chloride.
The addition amount of the flocculant is 1g/m3。
The ultraviolet light irradiation adopts vertical irradiation.
The pyridine content in the treated wastewater is 15.42mg/L, and the pyridine degradation rate is 22.9%.
Comparative example 3
An advanced oxidation technology for treating pyridine-containing organic wastewater, which comprises the following specific preparation scheme:
firstly, adding sulfuric acid with the mass percentage concentration of 5% into organic wastewater containing pyridine, adjusting the pH value to be 5, and then adding ferric salt, manganese dioxide and hydrogen peroxide into the wastewater, wherein the adding amount of the ferric salt is 18g/m3The amount of manganese dioxide added is 5g/m3The amount of hydrogen peroxide added is 10g/m3(ii) a Stirring, heating to 35 deg.C, adding ultraviolet catalytic oxidation catalyst in an amount of 10g/m3(ii) a After the reaction is finished, ultraviolet light is used for irradiating the reaction, the temperature is controlled at 40 ℃, and the reaction is carried out for 30 min; the intensity of the ultraviolet light is 8mW cm-2(ii) a Filtering out solid after the reaction is finished, then adding sodium hydroxide solution to adjust the pH value to 8, adding a flocculating agent, flocculating and precipitating, and filtering to finish the oxidation treatment of the pyridine-containing organic wastewater.
The ultraviolet light catalytic oxidation catalyst is a catalytic oxidation catalyst, and the preparation method comprises the following steps:
adding 15g of mesoporous silica into 100g of nitric acid solution with the mass percentage concentration of 8%, controlling the temperature at 80 ℃, boiling for 60min, and then washing with deionized water until the solution is neutral and drying; adding 4.8g of tetraisopropyl titanate and 150g of absolute ethyl alcohol into a mixing kettle, then uniformly mixing 2.4g of glacial acetic acid, 2g of synergist, 50g of deionized water and 80g of absolute ethyl alcohol, then adding into the mixing kettle, uniformly mixing, then adding the treated activated carbon into the mixing kettle, uniformly stirring, ultrasonically dipping for 10min, then filtering, drying at 80 ℃, and repeatedly dipping for 3 times; then treating the mixture for 5 hours at 120 ℃, controlling the temperature to be 500 ℃ for high-temperature treatment for 2 hours under the condition of protective gas, and cooling the treated mixture to room temperature to obtain the catalytic oxidation catalyst.
The preparation method of the synergist comprises the following steps: adding 5g of divinylbenzene, 0.12g of chloroplatinic acid and 100g of N-butanol into a reaction kettle, mixing and stirring for 2 hours at 60 ℃, then adding 20g of N- (1-naphthyl) -maleimide, 200g of deionized water, 0.5g of gelatin and 0.5g of ammonium persulfate, mixing and stirring for 2 hours at 80 ℃, filtering and drying to obtain the synergist.
The ferric salt is ferric chloride.
The mass percentage concentration of the sodium hydroxide solution is 20%.
The flocculant is polyaluminium chloride.
The addition amount of the flocculant is 1g/m3。
The ultraviolet light irradiation adopts vertical irradiation.
The pyridine content in the treated wastewater is 9.85mg/L, and the pyridine degradation rate is 80.7%.
Claims (8)
1. An advanced oxidation technology for treating pyridine-containing organic wastewater, which comprises the following specific preparation scheme:
firstly, adding sulfuric acid with the percentage concentration of 5-20 percent into organic wastewater containing pyridine, adjusting the pH value to 2-5, and then adding ferric salt, manganese dioxide and hydrogen peroxide into the wastewater, wherein the adding amount of the ferric salt is 18-46g/m3The addition amount of manganese dioxide is 5-16g/m3The adding amount of the hydrogen peroxide is 10-35g/m3(ii) a Stirring, heating to 30-45 deg.C, adding ultraviolet catalytic oxidation catalyst in an amount of 10-100 g/m3(ii) a After the reaction is finished, ultraviolet light is used for irradiating the reaction, the temperature is controlled to be 40-60 ℃, and the reaction is carried out for 30-60 min; the intensity of the ultraviolet light is 8-15mW cm-2(ii) a Filtering out solid after the reaction is finished, then adding sodium hydroxide solution to adjust the pH value to 8-11, adding a flocculating agent, flocculating and precipitating, and filtering to finish the oxidation treatment of the pyridine-containing organic wastewater.
2. The advanced oxidation technology for treating pyridine-containing organic wastewater according to claim 1, wherein: the ultraviolet light catalytic oxidation catalyst is a catalytic oxidation catalyst, and the preparation method comprises the following steps:
adding 15-38 parts of mesoporous silica into 100-150 parts of nitric acid solution with the percentage concentration of 8% -15%, controlling the temperature at 80-100 ℃, boiling and soaking for 60-180min, and then cleaning with deionized water to be neutral and drying; adding 4.8-8.2 parts of tetraisopropyl titanate and 180 parts of 150-180 parts of absolute ethyl alcohol into a mixing kettle, then uniformly mixing 3.2-6.1 parts of zirconium oxychloride, 2-6 parts of synergist, 50-80 parts of deionized water and 80-100 parts of absolute ethyl alcohol, then adding into the mixing kettle, uniformly mixing, adding the treated activated carbon into the mixing kettle, stirring uniformly, ultrasonically dipping for 10-30min, then filtering, drying at 80-120 ℃, and repeatedly dipping for 3-6 times; then treating at the temperature of 120-150 ℃ for 5-8h, controlling the temperature at the temperature of 500-800 ℃ for 2-5h under the condition of protective gas, and cooling to room temperature to obtain the catalytic oxidation catalyst.
3. The advanced oxidation technology for treating pyridine-containing organic wastewater according to claim 1, wherein: the ferric iron salt is ferric chloride or ferric sulfate or ferric nitrate.
4. The advanced oxidation technology for treating pyridine-containing organic wastewater according to claim 1, wherein: the concentration of the sodium hydroxide solution is 20-40%.
5. The advanced oxidation technology for treating pyridine-containing organic wastewater according to claim 1, wherein: the flocculant is polyaluminium chloride or polyaluminium sulfate or polyferric chloride or polyferric sulfate.
6. The advanced oxidation technology for treating pyridine-containing organic wastewater according to claim 1, wherein: the addition amount of the flocculating agent is 1-25 g/m3。
7. The advanced oxidation technology for treating pyridine-containing organic wastewater according to claim 1, wherein: the ultraviolet light irradiation adopts vertical irradiation.
8. The advanced oxidation technology for treating pyridine-containing organic wastewater according to claim 1, wherein: the preparation method of the synergist comprises the following steps: according to the mass portion, 5-12 portions of divinylbenzene, 10-18 portions of allyl dimethoxy silane, 0.12-0.48 portion of chloroplatinic acid, 200 portions of N-butyl alcohol, 100 portions of N-butyl alcohol, are added into a reaction kettle and mixed and stirred for 2-5 hours at the temperature of 60-72 ℃, 20-32 portions of N- (1-naphthyl) -maleimide, 500 portions of deionized water, 0.5-2 portions of gelatin, 0.5-2 portions of ammonium persulfate, and are mixed and stirred for 2-5 hours at the temperature of 80-95 ℃, and then are filtered and dried to obtain the synergist.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114016283A (en) * | 2021-11-17 | 2022-02-08 | 内蒙古中泰汇金环保科技有限公司 | Method for preparing refining agent by utilizing regenerated industrial salt |
| CN114177565A (en) * | 2021-11-30 | 2022-03-15 | 内蒙古中泰汇金环保科技有限公司 | Wet oxidation treatment method for low-content organic waste salt |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114016283A (en) * | 2021-11-17 | 2022-02-08 | 内蒙古中泰汇金环保科技有限公司 | Method for preparing refining agent by utilizing regenerated industrial salt |
| CN114016283B (en) * | 2021-11-17 | 2023-12-12 | 内蒙古中泰汇金环保科技有限公司 | Method for preparing refining agent by using regenerated industrial salt |
| CN114177565A (en) * | 2021-11-30 | 2022-03-15 | 内蒙古中泰汇金环保科技有限公司 | Wet oxidation treatment method for low-content organic waste salt |
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