CN106242114B - High-concentration organic industrial wastewater treatment system and treatment method - Google Patents
High-concentration organic industrial wastewater treatment system and treatment method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 20
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims abstract description 38
- 239000003054 catalyst Substances 0.000 claims abstract description 31
- 238000003756 stirring Methods 0.000 claims abstract description 30
- 230000003647 oxidation Effects 0.000 claims abstract description 27
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 27
- 230000015271 coagulation Effects 0.000 claims abstract description 21
- 238000005345 coagulation Methods 0.000 claims abstract description 21
- 238000005189 flocculation Methods 0.000 claims abstract description 21
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- 239000010949 copper Substances 0.000 claims abstract description 19
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 11
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- 238000010521 absorption reaction Methods 0.000 claims description 10
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 claims description 10
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- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 9
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 9
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 9
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- 238000001035 drying Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
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- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- 239000000701 coagulant Substances 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
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- 239000001307 helium Substances 0.000 claims description 3
- 229910052734 helium Inorganic materials 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/72—Copper
-
- B01J35/19—
-
- 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
- B01J37/0209—Impregnation involving a reaction between the support and a fluid
-
- 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
- B01J37/0213—Preparation of the impregnating solution
-
- 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
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- 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
- 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
Abstract
The invention discloses a high-concentration organic industrial wastewater treatment system, which is characterized in that: comprises a heterogeneous oxidation bed, a primary sedimentation tank, a pH adjusting tank, a coagulation flocculation sedimentation tank and a secondary sedimentation tank which are sequentially connected with a water inlet pipeline; the lower part of the heterogeneous oxidation bed is provided with a catalytic oxidation bed stirring device, the bottom of the pH adjusting tank is provided with a pH adjusting stirring device, and the bottom of the coagulation flocculation sedimentation tank is provided with a coagulation flocculation stirring device; the catalytic oxidation bed stirring device, the pH adjusting stirring device and the coagulation flocculation stirring device are connected with an air blower through pipelines; the heterogeneous oxidation bed is internally provided with a solid-phase heterogeneous copper catalyst CuO/C-Al 2 O 3 . The invention also discloses a method for treating the high-concentration organic industrial wastewater. The high-concentration organic industrial wastewater treatment system and the treatment method have the advantages of reducing the sludge production, improving the oxidation efficiency, reducing the operation cost, solving the problem of hardening of a catalytic bed and the like.
Description
Technical Field
The invention relates to the field of wastewater treatment, in particular to a high-concentration organic industrial wastewater treatment system and a treatment method.
Background
The high-concentration organic wastewater generally comes from the industries of chemical engineering, food processing and the like, has poor biodegradability, poor direct biochemical effect, long retention time of a treatment system and unstable operation. The existing engineering generally adopts a Fenton oxidation process, a micro-electrolysis process and an electrolysis process: the Fenton oxidation process has the advantages of large medicament consumption, incomplete oxidation, low efficiency and large sludge production because the reaction condition is liquid phase. The micro-electrolysis process has mild reaction conditions, incomplete oxidation and low treatment efficiency; the electrolysis process has high operation cost due to anode dissolution, and is not popularized at present.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a high concentration organic industrial wastewater treatment system and method, which directly oxidize and decompose the refractory organic substances in the wastewater to improve the biodegradability of the wastewater, and simultaneously greatly reduce the COD of the wastewater and effectively reduce the retention time of the treatment system.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: the utility model provides a high concentration organic industrial waste water processing system which characterized in that: comprises a heterogeneous oxidation bed, a primary sedimentation tank, a pH adjusting tank, a coagulation flocculation sedimentation tank and a secondary sedimentation tank which are sequentially connected with a water inlet pipeline; also comprises a strong acid solution dosing device and H 2 O 2 A dosing device, a strong alkali solution dosing device, a coagulant dosing device, a flocculant dosing device and a blower; the strong acid solution dosing device and H 2 O 2 The dosing device is connected with a water inlet pipeline; the strong alkali solution dosing device is connected with the pH adjusting tank; the coagulant agent adding device and the flocculating agent adding device are connected with the coagulation and flocculation tank; the lower part of the heterogeneous oxidation bed is provided with a catalytic oxidation bed stirring device, the bottom of the pH adjusting tank is provided with a pH adjusting stirring device, and the bottom of the coagulation flocculation sedimentation tank is provided with a coagulation flocculation stirring device; the catalytic oxidation bed stirring device, the pH adjusting stirring device and the coagulation flocculation stirring device are connected with an air blower through pipelines; the inside of the heterogeneous oxidation bed is provided with a solid-phase heterogeneous copper catalyst CuO/C-Al 2 O 3 。
Preferably, the heterogeneous copper catalyst is CuO/C-Al 2 O 3 Is prepared by adopting a dipping-roasting method. The preparation method comprises the following steps:
furthermore, the heterogeneous copper catalyst is CuO/C-Al 2 O 3 The preparation method comprises the following steps:
step 1: uniformly stirring aluminum chloride crystals, water, ethanol and propylene oxide with the matrix mass ratio of 1: 45-50: 9-10: 10-13 to obtain a clear alumina sol solution;
and 2, step: adding formaldehyde and resorcinol, wherein the addition amount of formaldehyde is 2/3 of the mass of the clear alumina sol solution, and the addition amount of resorcinol is 1/3 of the mass of the clear alumina sol solution, and uniformly stirring to obtain RF/Al 2 O 3 Compounding aerogel sol solution;
and step 3: then carrying out composite reaction with the carbon fiber felt to sol-gel, and then utilizing CO 2 Processing the sample by a supercritical drying method, and finally performing high-temperature heat treatment on the sample under the protection of inert gas such as argon or helium to obtain the carbon fiber felt reinforced C-Al 2 O 3 Composite aerogel powder;
and 4, step 4: according to Cu (NO 3). 6H 2 Water absorption of O A saturated aqueous solution of Cu (NO 3). 6H2O was prepared, and the solution was added dropwise to C-Al 2 O 3 In the composite aerogel powder, 1gC-Al is added 2 O 3 Cu (NO) added to composite aerogel powder 3 )·6H 2 The saturated water solution of O is 1m, and the mixture is continuously stirred to be evenly soaked; then standing, drying and roasting to obtain CuO/C-Al 2 O 3 A catalyst.
Preferably, the CuO/C-Al is obtained by standing, drying and roasting the mixture in the step 4 2 O 3 The process of the catalyst is as follows: standing at room temperature for 12-14h, drying at 110 deg.C for 8-10h, and calcining in muffle furnace at room temperature to 800 deg.C at a heating rate of 10 deg.C/min for 1h per 100 deg.C to obtain CuO/C-Al 2 O 3 A catalyst.
Preference is given toC-Al of step 4 2 O 3 The test method of the water absorption capacity of (2) is: 1g of C-Al is taken 2 O 3 Adding deionized water into the crucible drop by drop, and recording the amount of the deionized water when the carrier is just completely impregnated to obtain 1gC-Al 2 O 3 The water absorption capacity of (1).
Preferably, the catalyst also comprises CuO/C-Al 2 O 3 The catalyst is solidified by adding silica sol, sodium hexametaphosphate and water, wherein the mass ratio of the silica sol to the sodium hexametaphosphate to the water is 1.8-2:3:58-60 percent of silica sol, sodium hexametaphosphate and water are added in an amount which can completely immerse CuO/C-Al 2 O 3 Catalyst base material achieves the aim of CuO/C-Al 2 O 3 The particles are bonded and cured.
Preferably, the water inlet pipeline is provided with a pH pipeline mixer and an H pipeline 2 O 2 A pipeline mixer.
The invention also comprises a method for treating the high-concentration organic industrial wastewater, which is characterized by comprising the following steps: the high-concentration organic industrial wastewater treatment system is adopted for treatment.
By adopting the technical scheme, the high-concentration organic industrial wastewater treatment system and the high-concentration organic process wastewater treatment method adopting the system provided by the invention adopt the heterogeneous copper catalyst CuO/C-Al 2 O 3 Catalytic strong oxidant H 2 O 2 Generate a large amount of OH - The organic matter with difficult degradation of macromolecules is oxidized and degraded into low-toxicity or non-toxic micromolecular substances, a great amount of pollutants in high-concentration organic wastewater are removed by coagulation and flocculation technologies, and the COD removal rate of the system can reach more than 70%; compared with a homogeneous Fenton oxidation process, the catalyst CuO/C-Al 2 O 3 Using a solid phase, oxidant H 2 O 2 Mixing with waste water to obtain liquid phase, pneumatically stirring the stirrer of catalytic bed, mixing with the oxidant H 2 O 2 The catalyst has sufficient contact area and more effective catalytic effect; has the advantages that: reduce the sludge production, improve the oxidation efficiency and reduce the operation costThe hardening of the catalyst bed, etc.
Drawings
FIG. 1 is a schematic view of a high concentration organic industrial wastewater treatment system according to the present invention.
Detailed Description
The invention is further described with reference to the following drawings and detailed description.
1) Catalyst preparation
Step 1: 1g of aluminum chloride crystal, 45g of water, 9g of ethanol and 10g of propylene oxide are uniformly stirred to obtain a clear alumina sol solution;
and 2, step: then 43.3g of formaldehyde and 21.6g of resorcinol were added thereto, and the mixture was stirred uniformly to obtain RF/Al 2 O 3 Compounding aerogel sol solution;
and step 3: then carrying out composite reaction with the carbon fiber felt to sol-gel, and then utilizing CO 2 Processing the sample by a supercritical drying method, and finally performing high-temperature heat treatment on the sample under the protection of inert gas such as argon or helium to obtain the carbon fiber felt reinforced C-Al 2 O 3 Compounding aerogel;
and 4, step 4: 1g of C-Al is taken 2 O 3 Adding deionized water dropwise into a crucible, recording the amount of the used deionized water when the carrier is just completely impregnated, namely obtaining the water absorption capacity of 1g of gamma-Al 2O3, preparing a Cu (NO 3). 6H2O aqueous solution with a certain volume and concentration according to the water absorption capacity and the mass of the carrier, and adding the solution dropwise into a certain amount of C-Al 2O 2 O 3 In the composite aerogel powder, 1g of C-Al is added 2 O 3 Cu (NO) added to composite aerogel powder 3 )·6H 2 The saturated water solution of O is 1m, and the mixture is continuously stirred to be evenly soaked; then standing for 12-14h at room temperature, drying for 8-10h at 110 ℃, and then roasting in a muffle furnace, wherein the roasting process is heating from room temperature to 800 ℃, the heating rate is 10 ℃/min, and the temperature is kept for 1h at every 100 ℃, so that the CuO/C-Al is obtained 2 O 3 A catalyst.
C-Al described in step 4 2 O 3 The method for testing the water absorption capacity of (1) is as follows: taking 1gC-Al 2 O 3 In a crucible, then graduallyDropping deionized water, and recording the amount of the deionized water when the carrier is just completely impregnated to obtain 1gC-Al 2 O 3 The water absorption capacity of (1).
2) Catalyst curing
Also includes the pair CuO/C-Al 2 O 3 And curing the catalyst, wherein the curing step is to add silica sol and sodium hexametaphosphate, and the mass ratio of the silica sol to the sodium hexametaphosphate to water is 2:3:58, silica sol, sodium hexametaphosphate and water in amounts to completely immerse the CuO/C-Al 2 O 3 Catalyst base material achieves the aim of CuO/C-Al 2 O 3 The particles are bonded and cured. After solidification, the copper-based catalyst particles are solidified and form a cementing framework with particles which have certain strength, acid water corrosion resistance and certain electric conductivity through the cementing action of products of mutual reaction among all components, so that the collapse of a bed layer is inhibited, the service life and the time are prolonged, the sludge formed on the surface of the catalyst is removed through pneumatic stirring, and the hardening problem is finally solved.
As shown in fig. 1, the high concentration organic industrial wastewater treatment system of the present invention comprises a heterogeneous oxidation bed 1, a primary sedimentation tank 2, a pH adjusting tank 3, a coagulation flocculation sedimentation tank 4 and a secondary sedimentation tank 5 which are connected with a water inlet pipe 11 in sequence; also comprises a strong acid solution dosing device 12 and H 2 O 2 A dosing device 13, a strong base solution dosing device 14, a coagulant dosing device 15, a flocculant dosing device 16 and an air blower 17; the strong acid solution adding device 12 and H 2 O 2 The dosing device 13 is connected with the water inlet pipeline 11; the strong alkali solution dosing device 14 is connected with the pH adjusting tank 3; the coagulant adding device 15 and the flocculating agent adding device 16 are connected with the coagulation and flocculation tank 4; the lower part of the heterogeneous oxidation bed 1 is provided with a catalytic oxidation bed stirring device 9, the bottom of the pH adjusting tank 3 is provided with a pH adjusting stirring device 18, and the bottom of the coagulation flocculation sedimentation tank 4 is provided with a coagulation flocculation stirring device 19; the catalytic oxidation bed stirring device 9, the pH adjusting stirring device 18 and the coagulation flocculation stirring device 19 are connected with a blower 16 through pipelines; the heterogeneous oxidation bed 1 is internally provided with a solid-phase heterogeneous copper catalyst CuO/C-Al 2 O 3 10。
4) Results of the implementation
The system uses heterogeneous copper catalyst CuO/C-Al 2 O 3 Catalyzing strong oxidant H2O2 to generate a large amount of OH - The organic matter with macromolecule difficult to degrade is oxidized and degraded into low-toxicity or non-toxic micromolecular matter, and a great amount of pollutants in the high-concentration organic wastewater are removed by coagulation and flocculation technologies, and the COD removal rate of the system can reach more than 70%.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a high concentration organic industrial waste water processing system which characterized in that: comprises a heterogeneous oxidation bed, a primary sedimentation tank, a pH adjusting tank, a coagulation flocculation sedimentation tank and a secondary sedimentation tank which are sequentially connected with a water inlet pipeline; also comprises a strong acid solution dosing device and H 2 O 2 A dosing device, a strong base solution dosing device, a coagulant dosing device, a flocculating agent dosing device and an air blower; the strong acid solution dosing device and H 2 O 2 The dosing device is connected with a water inlet pipeline; the strong alkali solution dosing device is connected with the pH adjusting tank; the coagulant agent adding device and the flocculating agent adding device are connected with the coagulation and flocculation tank; the lower part of the heterogeneous oxidation bed is provided with a catalytic oxidation bed stirring device, the bottom of the pH adjusting tank is provided with a pH adjusting stirring device, and the bottom of the coagulation flocculation sedimentation tank is provided with a coagulation flocculation stirring device; the catalytic oxidation bed stirring device, the pH adjusting stirring device and the coagulation flocculation stirring device are connected with an air blower through pipelines; the heterogeneous oxidation bed is internally provided with a solid-phase heterogeneous copper catalyst CuO/C-Al 2 O 3 ；
The heterogeneous copper catalyst is CuO/C-Al 2 O 3 Is prepared by adopting a dipping-roasting method;
the heterogeneous copper catalyst is CuO/C-Al 2 O 3 The preparation method comprises the following steps:
step 1: uniformly stirring aluminum chloride crystals, water, ethanol and propylene oxide with the matrix mass ratio of 1: 45-50: 9-10: 10-13 to obtain a clear alumina sol solution;
step 2: adding formaldehyde and resorcinol, wherein the adding amount of formaldehyde is 2/3 of the mass of the clear alumina sol solution, and the adding amount of resorcinol is 1/3 of the mass of the clear alumina sol solution, and uniformly stirring to obtain RF/Al 2 O 3 Compounding aerogel sol solution;
and step 3: then carrying out composite reaction with the carbon fiber felt to sol-gel, and then utilizing CO 2 Processing the sample by a supercritical drying method, and finally performing high-temperature heat treatment on the sample under the protection of inert gas such as argon or helium to obtain the carbon fiber felt reinforced C-Al 2 O 3 Composite aerogel powder;
and 4, step 4: according to Cu (NO) 3 ）•6H 2 Production of Cu (NO) from Water absorption of O 3 ）•6H 2 Saturated aqueous solution of O, dropwise adding the solution to C-Al 2 O 3 In the composite aerogel powder, wherein each 1g of C-Al 2 O 3 Cu (NO) added to composite aerogel powder 3 ）•6H 2 The saturated water solution of O is 1m, and the mixture is continuously stirred to be uniformly impregnated; then standing, drying and roasting to obtain CuO/C-Al 2 O 3 A catalyst.
2. The high concentration organic industrial wastewater treatment system according to claim 1, wherein: and step 4, standing, drying and roasting to obtain CuO/C-Al 2 O 3 The process of the catalyst is as follows: standing at room temperature for 12-14h, drying at 110 deg.C for 8-10h, and calcining in muffle furnace at room temperature to 800 deg.C at a heating rate of 10 deg.C/min for 1h at 100 deg.C to obtain CuO/C-Al 2 O 3 A catalyst.
3. The high concentration organic industrial wastewater treatment system according to claim 1, wherein: C-Al described in step 4 2 O 3 The test method of the water absorption capacity of (2) is: 1g of C-Al is taken 2 O 3 Adding deionized water into the crucible drop by drop, and recording the amount of the deionized water when the carrier is just completely impregnated to obtain 1gC-Al 2 O 3 The water absorption capacity of (1).
4. The high concentration organic industrial wastewater treatment system according to claim 1, wherein: also includes the pair CuO/C-Al 2 O 3 The catalyst is solidified, and the solidification step is that silica sol, sodium hexametaphosphate and water are added, wherein the mass ratio of the silica sol to the sodium hexametaphosphate to the water is 1.8-2:3:58-60 percent of silica sol, sodium hexametaphosphate and water are added in an amount capable of completely immersing CuO/C-Al 2 O 3 Catalyst base material achieves the aim of CuO/C-Al 2 O 3 The particles are subjected to a binding and curing purpose.
5. The high concentration organic industrial wastewater treatment system according to claim 1, wherein: the water inlet pipeline is provided with a pH pipeline mixer and an H 2 O 2 A pipeline mixer.
6. A method for treating high-concentration organic industrial wastewater is characterized by comprising the following steps: the high concentration organic industrial wastewater treatment system of any one of claims 1 to 5 is adopted for treatment.
Priority Applications (1)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0483592A (en) * | 1990-07-26 | 1992-03-17 | Mitsubishi Heavy Ind Ltd | Treatment of waste chemical washing solution |
| CN101745197A (en) * | 2009-10-20 | 2010-06-23 | 同济大学 | Method of treating refractory pollutants through catalyzing H2O2 oxidation by pyrite cinder |
| CN103979735A (en) * | 2014-05-21 | 2014-08-13 | 青岛中通臭氧科技有限公司 | Process and device for treating refractory industrial wastewater |
| CN104817206A (en) * | 2015-04-17 | 2015-08-05 | 江苏大学 | Method for catalytically degrading organic wastewater |
| CN105540931A (en) * | 2016-01-19 | 2016-05-04 | 东华大学 | Multi-component composite catalytic zero-valent iron Fenton treatment method and device for industrial wastewater |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1659098A2 (en) * | 2003-06-19 | 2006-05-24 | Kansai Paint Co., Ltd. | Method for clarifying waste water containing organic material |
| US20110290740A1 (en) * | 2007-04-09 | 2011-12-01 | Innovation Services, Inc. | Waste treatment and disinfection unit |
| WO2016037149A1 (en) * | 2014-09-04 | 2016-03-10 | Clean Chemistry, Inc. | Method of water treatment utilizing a peracetate oxidant solution |
-
2016
- 2016-08-24 CN CN201610715669.8A patent/CN106242114B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0483592A (en) * | 1990-07-26 | 1992-03-17 | Mitsubishi Heavy Ind Ltd | Treatment of waste chemical washing solution |
| CN101745197A (en) * | 2009-10-20 | 2010-06-23 | 同济大学 | Method of treating refractory pollutants through catalyzing H2O2 oxidation by pyrite cinder |
| CN103979735A (en) * | 2014-05-21 | 2014-08-13 | 青岛中通臭氧科技有限公司 | Process and device for treating refractory industrial wastewater |
| CN104817206A (en) * | 2015-04-17 | 2015-08-05 | 江苏大学 | Method for catalytically degrading organic wastewater |
| CN105540931A (en) * | 2016-01-19 | 2016-05-04 | 东华大学 | Multi-component composite catalytic zero-valent iron Fenton treatment method and device for industrial wastewater |
Non-Patent Citations (3)
| Title |
|---|
| 光芬顿催化剂Cu-Fe/TiO2-Al2O3的制备;张冉 等;《水处理技术》;20150916;第41卷(第9期);61-64 * |
| 载铜活性炭催化氧化干法腈纶废水的研究;楼静;《中国环境管理干部学院学报》;20050930;第15卷(第03期);84-87 * |
| 铁铜催化剂非均相Fenton 降解苯酚及机制研究;杨岳主 等;《环境科学》;20130731;第34卷(第7期);2658-2664 * |
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