CN114367292B - Normal catalyst for treating industrial wastewater and application thereof - Google Patents
Normal catalyst for treating industrial wastewater and application thereof Download PDFInfo
- Publication number
- CN114367292B CN114367292B CN202210095438.7A CN202210095438A CN114367292B CN 114367292 B CN114367292 B CN 114367292B CN 202210095438 A CN202210095438 A CN 202210095438A CN 114367292 B CN114367292 B CN 114367292B
- Authority
- CN
- China
- Prior art keywords
- mixture
- catalyst
- wastewater
- parts
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 56
- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 20
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000853 adhesive Substances 0.000 claims abstract description 13
- 230000001070 adhesive effect Effects 0.000 claims abstract description 13
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 238000002360 preparation method Methods 0.000 claims abstract description 10
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims abstract description 8
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 42
- 229920000642 polymer Polymers 0.000 claims description 25
- 239000002351 wastewater Substances 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000000243 solution Substances 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 14
- 238000001354 calcination Methods 0.000 claims description 12
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 239000008247 solid mixture Substances 0.000 claims description 10
- 238000005303 weighing Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 7
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 5
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 5
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 5
- 239000004927 clay Substances 0.000 claims description 5
- 239000012065 filter cake Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000003837 high-temperature calcination Methods 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 235000019353 potassium silicate Nutrition 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 5
- 238000005273 aeration Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims 1
- 238000002161 passivation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000001451 organic peroxides Chemical class 0.000 description 2
- 238000006864 oxidative decomposition reaction Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
Classifications
-
- 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
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
-
- 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
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- B01J35/60—
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/44—Time
Abstract
The invention provides a normal catalyst for treating industrial wastewater and application thereof, and belongs to the technical field of catalyst preparation and application. The normal catalyst consists of carbon powder, aluminum silicate, zinc nitrate, manganese dioxide, nickel nitrate, ferroferric oxide and an adhesive. The normal catalyst prepared by the invention has the characteristics of high active component content, large specific surface area of the carrier, high reaction rate, high mechanical strength, strong fixation, long service life, high and stable COD removal rate, no hardening and passivation after long-time use, no secondary pollution and the like.
Description
Technical Field
The invention relates to the technical field of catalyst preparation, in particular to a normal catalyst for treating industrial wastewater and application thereof.
Background
A large amount of organic wastewater, such as pharmaceutical wastewater, pesticide wastewater, coal chemical wastewater and the like, can be generated in the industrial product production process. The general material composition of the waste water is complex, the COD is high, the salt content is high, the biodegradability is poor, and part of the waste water has toxicity. If such direct discharge is carried out, serious water pollution is caused.
At present, most industrial wastewater treatment adopts one or a combination of a plurality of processes of Fenton oxidation method, iron-carbon micro-electrolysis method, electrocatalytic oxidation method, wet oxidation method, biochemical treatment, membrane system and chemical coagulation flocculation. The processes mainly comprise: low treatment efficiency, unstable system operation, high investment cost, high operation cost, secondary pollution and the like.
Reaction mechanism of catalytic oxidation process: the oxidant (hydrogen peroxide or ozone) generates hydroxyl free radicals with extremely strong oxidizing capability under the catalysis of the catalyst, and the hydroxyl free radicals react with organic matters in the wastewater, and the organic free radicals generated in the reaction can continuously participate in chain reactions of the hydroxyl free radicals, or further generate oxidative decomposition reaction after generating organic peroxide free radicals until the organic peroxide free radicals are decomposed into final products of carbon dioxide and water, so that the purpose of oxidative decomposition of the organic matters is achieved.
Activated carbon is the most common carbon-based material, is composed of graphite microcrystals, has the advantages of multiple gaps, large specific surface area, long service life and the like, and is an economical and efficient choice as a carrier of the catalyst. Therefore, it is necessary to provide a normal catalyst preparation method and application for treating industrial wastewater.
Disclosure of Invention
In view of the above, the invention provides a normal catalyst for treating industrial wastewater, which solves the problems of low treatment efficiency, unstable system operation, high investment cost, high operation cost, secondary pollution generation, low content of active components of the catalyst, small specific surface area of a carrier, low reaction rate, low mechanical strength, weak fixation, short service life, low and unstable COD removal rate, easy hardening and passivation after long-time use and the like of the prior art and the conventional catalyst.
The invention provides a normal catalyst for treating industrial wastewater, which is prepared from the following raw materials in percentage by mass:
preferably, the adhesive is composed of the following raw materials in parts by weight:
60 parts of clay, 15 parts of carboxymethyl cellulose water solution with the mass concentration of 20%, 15 parts of water glass and 10 parts of polyvinyl alcohol water solution with the mass concentration of 20%.
The invention also aims at a preparation method of the normal catalyst for treating industrial wastewater, which comprises the following steps:
step one: weighing zinc nitrate and nickel nitrate according to a proportion, and adding the zinc nitrate and the nickel nitrate into water to prepare a mixed aqueous solution;
step two: weighing carbon powder according to a proportion, adding the carbon powder into the mixed water solution in the first step, and soaking the carbon powder in a 50 ℃ incubator for 12 hours;
step three: drying the filter cake after filtering to obtain a solid mixture;
step four: adding aluminum silicate, manganese dioxide and ferroferric oxide into the solid mixture according to a certain proportion, and fully mixing for 90min to obtain a mixture I;
step five: adding an adhesive into the first mixture according to the proportion, and fully mixing to obtain a second mixture;
step six: collecting a second mixture, putting the second mixture into a granulator, and preparing a short columnar polymer by the granulator, wherein the surface of the columnar polymer is provided with a plurality of concave holes;
step seven: collecting the polymer prepared by the granulator, putting the polymer into a baking oven for baking, and taking out the polymer after baking is finished to obtain a mixture III;
step eight: placing the third mixture into a high-temperature furnace for high-temperature calcination;
step nine: the fourth mixture was taken out and cooled to room temperature to obtain the catalyst of the present invention.
Preferably, the temperature of the oven in the third step is controlled at 120 ℃, and the drying time is 6 hours.
Preferably, the temperature of the oven in the seventh step is controlled at 150 ℃, and the drying time is 120min.
Preferably, the calcination treatment is performed in an oxygen-free environment, wherein the calcination temperature is 780-900 ℃ and the calcination time is 6 hours.
The invention also provides application of the normal catalyst for treating industrial wastewater, which comprises the steps of adding the catalyst into the wastewater, adjusting the pH value of the wastewater to 5-6, adding hydrogen peroxide, uniformly mixing, and performing aeration reaction.
The invention also provides application of the normal catalyst for treating industrial wastewater, which comprises the steps of adding the catalyst into the wastewater, adjusting the pH value of the wastewater to 6-9, and introducing ozone for reaction.
Compared with the prior art, the invention has the following beneficial effects:
the invention prepares the catalyst by using carbon powder, zinc nitrate, nickel nitrate, aluminum silicate, manganese dioxide, ferroferric oxide and adhesive, improves the tolerance of the catalyst to P, S, prevents the catalyst from poisoning, improves the strength, does not influence the specific surface area of the carrier carbon powder, can enhance the dispersity of active components, and further improves the stability and the selectivity of the catalyst
The preparation method of the catalyst further ensures the high utilization rate of active components in the catalyst, solves the problem of catalyst loss rate, and prevents secondary pollution.
The catalyst prepared by the invention has the characteristics of large specific surface area and high iodine value, the appearance of the catalyst is cylindrical, the catalyst is not hardened after long-time use, and the compressive strength and the wear resistance are high. The catalyst preparation process has high roasting temperature, long time, firm mixing of metal components and no dissolution and falling of the metal components after long-time use.
Drawings
FIG. 1 is a normal catalyst for treating industrial wastewater prepared in example 1.
Detailed Description
The invention is further illustrated below with reference to examples.
Example 1
The normal catalyst for treating industrial wastewater is prepared from the following raw materials in percentage by mass:
wherein the adhesive is composed of the following raw materials in parts by weight:
60 parts of clay, 15 parts of carboxymethyl cellulose water solution with the mass concentration of 20%, 15 parts of water glass and 10 parts of polyvinyl alcohol water solution with the mass concentration of 20%.
The preparation method of the normal catalyst for treating industrial wastewater comprises the following steps:
step one: weighing zinc nitrate and nickel nitrate according to a proportion, and adding the zinc nitrate and the nickel nitrate into water to prepare a mixed aqueous solution;
step two: weighing carbon powder according to a proportion, adding the carbon powder into the mixed water solution in the first step, and soaking the carbon powder in a 50 ℃ incubator for 12 hours;
step three: after filtration, drying the filter cake at 120 ℃ for 6 hours to obtain a solid mixture;
step four: adding aluminum silicate, manganese dioxide and ferroferric oxide into the solid mixture according to a certain proportion, and fully mixing for 90min to obtain a mixture I;
step five: adding an adhesive into the first mixture according to the proportion, and fully mixing to obtain a second mixture;
step six: collecting a second mixture, putting the second mixture into a granulator, and preparing a short columnar polymer by the granulator, wherein the surface of the columnar polymer is provided with a plurality of concave holes;
step seven: collecting the polymer prepared by the granulator, and putting the polymer into a baking oven to bake, wherein the temperature of the baking oven is controlled at 150 ℃, the baking time is 120min, and taking out the polymer after baking is finished to obtain a mixture III;
step eight: placing the third mixture into a high-temperature furnace for high-temperature calcination, wherein the calcination temperature is 780 ℃ and the calcination time is 6 hours;
step nine: the fourth mixture was taken out and cooled to room temperature to obtain the catalyst of the present invention.
Example 2
The normal catalyst for treating industrial wastewater is prepared from the following raw materials in percentage by mass:
wherein the adhesive is composed of the following raw materials in parts by weight:
60 parts of clay, 15 parts of carboxymethyl cellulose water solution with the mass concentration of 20%, 15 parts of water glass and 10 parts of polyvinyl alcohol water solution with the mass concentration of 20%.
The preparation method of the normal catalyst for treating industrial wastewater comprises the following steps:
step one: weighing zinc nitrate and nickel nitrate according to a proportion, and adding the zinc nitrate and the nickel nitrate into water to prepare a mixed aqueous solution;
step two: weighing carbon powder according to a proportion, adding the carbon powder into the mixed water solution in the first step, and soaking the carbon powder in a 50 ℃ incubator for 12 hours;
step three: after filtration, drying the filter cake at 120 ℃ for 6 hours to obtain a solid mixture;
step four: adding aluminum silicate, manganese dioxide and ferroferric oxide into the solid mixture according to a certain proportion, and fully mixing for 90min to obtain a mixture I;
step five: adding an adhesive into the first mixture according to the proportion, and fully mixing to obtain a second mixture;
step six: collecting a second mixture, putting the second mixture into a granulator, and preparing a short columnar polymer by the granulator, wherein the surface of the columnar polymer is provided with a plurality of concave holes;
step seven: collecting the polymer prepared by the granulator, and putting the polymer into a baking oven to bake, wherein the temperature of the baking oven is controlled at 150 ℃, the baking time is 120min, and taking out the polymer after baking is finished to obtain a mixture III;
step eight: placing the third mixture into a high-temperature furnace for high-temperature calcination, wherein the calcination temperature is 800 ℃ and the calcination time is 6 hours;
step nine: the fourth mixture was taken out and cooled to room temperature to obtain the catalyst of the present invention.
Example 3
The normal catalyst for treating industrial wastewater is prepared from the following raw materials in percentage by mass:
wherein the adhesive is composed of the following raw materials in parts by weight:
60 parts of clay, 15 parts of carboxymethyl cellulose water solution with the mass concentration of 20%, 15 parts of water glass and 10 parts of polyvinyl alcohol water solution with the mass concentration of 20%.
The preparation method of the normal catalyst for treating industrial wastewater comprises the following steps:
step one: weighing zinc nitrate and nickel nitrate according to a proportion, and adding the zinc nitrate and the nickel nitrate into water to prepare a mixed aqueous solution;
step two: weighing carbon powder according to a proportion, adding the carbon powder into the mixed water solution in the first step, and soaking the carbon powder in a 50 ℃ incubator for 12 hours;
step three: after filtration, drying the filter cake at 120 ℃ for 6 hours to obtain a solid mixture;
step four: adding aluminum silicate, manganese dioxide and ferroferric oxide into the solid mixture according to a certain proportion, and fully mixing for 90min to obtain a mixture I;
step five: adding an adhesive into the first mixture according to the proportion, and fully mixing to obtain a second mixture;
step six: collecting a second mixture, putting the second mixture into a granulator, and preparing a short columnar polymer by the granulator, wherein the surface of the columnar polymer is provided with a plurality of concave holes;
step seven: collecting the polymer prepared by the granulator, and putting the polymer into a baking oven to bake, wherein the temperature of the baking oven is controlled at 150 ℃, the baking time is 120min, and taking out the polymer after baking is finished to obtain a mixture III;
step eight: placing the third mixture into a high-temperature furnace for high-temperature calcination, wherein the calcination temperature is 900 ℃ and the calcination time is 6 hours;
step nine: the fourth mixture was taken out and cooled to room temperature to obtain the catalyst of the present invention.
The specification parameters of the catalysts for ozone oxidation of industrial wastewater prepared in examples 1-3 are as shown in table 1,
TABLE 1
| Example 1 | Example 2 | Example 3 | |
| Catalyst active ingredient content (%) | 4.3 | 4.5 | 4.4 |
| Catalyst attrition resistance (%) | 98 | 96 | 97 |
| Catalyst compressive Strength (N/cm) 2 ) | 157 | 158 | 156 |
| Catalyst iodine value (mg/g) | 980 | 950 | 970 |
| Catalyst void fraction (%) | 40 | 42 | 43 |
Example 4
300mL of wastewater is measured by a beaker, 600mL of the catalyst prepared in the example 2 is added, the pH of the wastewater is regulated to 5-6, and then 1mL of hydrogen peroxide with the concentration of 27.5wt% is added for uniform mixing, and aeration reaction is carried out for 1-2h.
Example 5
Measuring 300mL of wastewater by using a beaker, adding 600mL of the catalyst prepared in the embodiment 2, adjusting the pH of the wastewater to 6-9, then opening an ozone generator to charge ozone, wherein the flow rate of the ozone is 200mg/L, and reacting for 1-2h.
Examples 4 and 5 application data as in table 2,
TABLE 2
Comparative example 1
Fenton oxidation process: 300mL of wastewater is taken by a glass beaker, the pH of the wastewater is regulated to 2-3, 2mL of ferrous sulfate solution with the concentration of 10wt% is added, then 0.3mL of hydrogen peroxide with the concentration of 27.5wt% is added, and the reaction is stirred for 1-2h.
Comparative example 1 the data is as in table 3,
TABLE 3 Table 3
Comparative example 2
Electrocatalytic oxidation process: 300mL of wastewater is taken by a glass beaker, poured into an electrode groove and reacted for 1-2h.
Comparative example 2 the data is as in table 4,
TABLE 4 Table 4
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (1)
1. The application of the catalyst in treating industrial wastewater is characterized in that the catalyst is prepared from the following raw materials in percentage by mass:
carbon powder 75%
Zinc nitrate 0.3%
Nickel nitrate 0.5%
Aluminum silicate 4%
Manganese dioxide 0.7%
Ferroferric oxide 1.5%
18% of an adhesive;
the adhesive is composed of the following raw materials in parts by weight:
60 parts of clay, 15 parts of carboxymethyl cellulose water solution with the mass concentration of 20%, 15 parts of water glass and 10 parts of polyvinyl alcohol water solution with the mass concentration of 20%;
the preparation method of the catalyst comprises the following steps:
step one: weighing zinc nitrate and nickel nitrate according to a proportion, and adding the zinc nitrate and the nickel nitrate into water to prepare a mixed aqueous solution;
step two: weighing carbon powder according to a proportion, adding the carbon powder into the mixed water solution in the first step, and soaking the carbon powder in a 50 ℃ incubator for 12 hours;
step three: drying the filter cake after filtering to obtain a solid mixture;
step four: adding aluminum silicate, manganese dioxide and ferroferric oxide into the solid mixture according to a certain proportion, and fully mixing for 90min to obtain a mixture I;
step five: adding an adhesive into the first mixture according to the proportion, and fully mixing to obtain a second mixture;
step six: collecting a second mixture, putting the second mixture into a granulator, and preparing a short columnar polymer by the granulator, wherein the surface of the columnar polymer is provided with a plurality of concave holes;
step seven: collecting the polymer prepared by the granulator, putting the polymer into a baking oven for baking, and taking out the polymer after baking is finished to obtain a mixture III;
step eight: placing the mixture III into a high-temperature furnace for high-temperature calcination to obtain a mixture IV;
step nine: taking out the mixture IV, and cooling to room temperature to obtain a catalyst;
the temperature of the drying box in the third step is controlled at 120 ℃, and the drying time is 6 hours;
the temperature of the baking oven in the step seven is controlled at 150 ℃ and the baking time is 120min;
the eighth step is to perform calcination treatment in an oxygen-free environment, wherein the calcination temperature is 780-900 ℃ and the calcination time is 6 hours;
adding the catalyst into the wastewater, then adjusting the pH value of the wastewater to 5-6, adding hydrogen peroxide, uniformly mixing, and then performing aeration reaction, or
Adding the catalyst into the wastewater, then adjusting the pH value of the wastewater to 6-9, and introducing ozone for reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210095438.7A CN114367292B (en) | 2022-01-26 | 2022-01-26 | Normal catalyst for treating industrial wastewater and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210095438.7A CN114367292B (en) | 2022-01-26 | 2022-01-26 | Normal catalyst for treating industrial wastewater and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114367292A CN114367292A (en) | 2022-04-19 |
| CN114367292B true CN114367292B (en) | 2024-01-09 |
Family
ID=81145108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210095438.7A Active CN114367292B (en) | 2022-01-26 | 2022-01-26 | Normal catalyst for treating industrial wastewater and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114367292B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115779921A (en) * | 2022-12-09 | 2023-03-14 | 江苏益非斯环境科技有限公司 | Carbon-based catalyst and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105498777A (en) * | 2015-12-06 | 2016-04-20 | 苏州科环环保科技有限公司 | Preparation method of metal loaded catalyst with aluminum silicate as carrier |
| CN108545823A (en) * | 2018-03-12 | 2018-09-18 | 江苏蓝必盛化工环保股份有限公司 | A kind of bio-carrier charcoal and preparation method thereof containing various trace elements |
| CN110586126A (en) * | 2019-09-29 | 2019-12-20 | 威海中远造船科技有限公司 | Catalyst and method for sewage treatment at normal temperature and normal pressure |
| CN112093982A (en) * | 2020-09-11 | 2020-12-18 | 河北奥思德环保科技有限公司 | Treatment method of high-concentration organic wastewater |
-
2022
- 2022-01-26 CN CN202210095438.7A patent/CN114367292B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105498777A (en) * | 2015-12-06 | 2016-04-20 | 苏州科环环保科技有限公司 | Preparation method of metal loaded catalyst with aluminum silicate as carrier |
| CN108545823A (en) * | 2018-03-12 | 2018-09-18 | 江苏蓝必盛化工环保股份有限公司 | A kind of bio-carrier charcoal and preparation method thereof containing various trace elements |
| CN110586126A (en) * | 2019-09-29 | 2019-12-20 | 威海中远造船科技有限公司 | Catalyst and method for sewage treatment at normal temperature and normal pressure |
| CN112093982A (en) * | 2020-09-11 | 2020-12-18 | 河北奥思德环保科技有限公司 | Treatment method of high-concentration organic wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114367292A (en) | 2022-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11306403B2 (en) | Copper-palladium-loaded mesoporous silicon carbide-based catalyst, preparation method and application thereof | |
| CN104891713A (en) | Catalytic ozonation process for treatment of organic wastewater | |
| CN106563504B (en) | The preparation method and applications of bimetallic catalyst based on CuBTC-PVP | |
| CN114367292B (en) | Normal catalyst for treating industrial wastewater and application thereof | |
| CN111635025B (en) | Method for treating dye wastewater by using patina/glucose-glucose oxidase catalytic oxidation system | |
| CN107824196A (en) | A kind of organic wastewater ozone oxidation catalyst and its preparation and application | |
| CN102049253B (en) | Preparation method of special catalyst for waste water treatment by ozone oxidation | |
| CN110479302A (en) | A kind of preparation method of micropore iron carbon composite catalytic agent and thus obtained micropore iron carbon composite catalytic agent and its application | |
| CN110773222A (en) | Universal preparation method and application of hierarchical pore nitrogen-doped carbon catalyst based on double-pore-foaming agent synthesis | |
| CN114105290B (en) | Preparation method and application of modified blue algae biochar loaded nano zero-valent iron material | |
| CN109364924B (en) | Magnetic nano ozone catalyst CoFe2O4And preparation method and application thereof | |
| CN110918099A (en) | Method for treating hexavalent chromium-containing wastewater through photocatalytic reduction of nickel oxide-nickel cobaltate-black titanium dioxide composite | |
| CN107159175B (en) | It is a kind of using sub- titanium oxide as the catalytic ozonization water treatment method of catalyst | |
| CN111229244B (en) | Ozone catalytic oxidation catalyst and preparation method and application thereof | |
| CN112295562A (en) | Preparation method and application of cigarette butt derived carbon material | |
| CN114471607B (en) | Preparation method of catalyst for advanced treatment of industrial wastewater by ozone or hydrogen peroxide | |
| CN112138678A (en) | Ozone catalytic oxidation catalyst and preparation method and application thereof | |
| CN109796073A (en) | Nitrogen-containing wastewater processing method | |
| CN112718001B (en) | Nano cellulose based aerogel composite photocatalyst and application thereof | |
| CN110526484B (en) | Process for treating industrial wastewater of organophosphorus pesticide | |
| CN114260014A (en) | NiCo2O4/CeO2Composite catalyst and preparation method and application thereof | |
| CN112774683B (en) | Carbon-based coated Ac-Fe/Co catalyst, and microemulsion preparation method and application thereof | |
| CN105478106A (en) | Novel manganese dioxide-loaded ceramic-based catalyst and its preparation method and use | |
| CN115518639B (en) | Environment-friendly catalyst for preparing livestock and poultry manure, synthesis method and application | |
| CN109179660A (en) | A kind of processing method of the nitrogen-containing wastewater based on material filling type catalysis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |