CN108745419A - A kind of catalyst and preparation method thereof of O3 catalytic oxidation waste water - Google Patents
A kind of catalyst and preparation method thereof of O3 catalytic oxidation waste water Download PDFInfo
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- CN108745419A CN108745419A CN201810820875.4A CN201810820875A CN108745419A CN 108745419 A CN108745419 A CN 108745419A CN 201810820875 A CN201810820875 A CN 201810820875A CN 108745419 A CN108745419 A CN 108745419A
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- catalyst
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- waste water
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- catalytic oxidation
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- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/32—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of manganese, technetium or rhenium
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- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/28—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of the platinum group metals, iron group metals or copper
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- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/38—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of titanium, zirconium or hafnium
-
- 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
Abstract
The invention discloses a kind of catalyst and preparation method thereof of O3 catalytic oxidation waste water, it is related to field of waste water treatment, include the kernel with catalytic action and the shell with barrier anion, the shell is wrapped in outside kernel, and the preparation method of the catalyst includes the following steps：（1）The preparation of kernel；（2）The preparation of shell；（3）Preliminary catalytic agent；（4）It is dry；（5）It crushes.The present invention has the effect of repelling anion by anion active agent, is added with the shell of anion active agent, can provide local anion-content lower environment, improves the active site of the effective ozone catalyst of kernel with catalytic action in enclosure（Hydroxyl group）Amount, and then improve catalytic ozonation efficiency.
Description
Technical field
The present invention relates to field of waste water treatment, the catalyst of especially a kind of O3 catalytic oxidation waste water and its preparation side
Method.
Background technology
The high speed development of China's economy for many years, causes environmental aspect to cause anxiety, and it is anxious as party affairs to increase environment protection.
It is counted according to China Environmental State Bulletin in 2015, COD total emission volumn in 2015 is 2223.5 ten thousand tons, is compared 2010
Decline 12.9%, but wastewater discharge is still larger.This kind of organic wastewater usually has COD concentration height, BOD concentration low, toxic
Property, the features such as hard-degraded substance is more.It if direct emission, will do great damage to water environment, and therefore, cost-effectively go to remove water
In this kind of organic pollution have become research and the engineer application hot spot of current water technology.High-level oxidation technology（AOP）Profit
Organic matter is attacked with various living radicals, effectively by toxic hardly degraded organic substance mineralising or low toxicity, Yi Sheng can be converted into
The small organic molecule of object degradation receives the academic great attention with industrial circle.Such technology includes mainly Fenton methods, wet
Formula catalysis oxidation, photocatalysis, electro-catalysis, O3 catalytic oxidation etc..Wherein O3 catalytic oxidation method（COP）With not by waste water color
The advantages of degree, colloidal substance, high temperature and pressure and pH conditions limit.
Catalytic ozonation technology is divided into homogeneous catalytic oxidation and heterogeneous catalytic oxidation.Homogeneous catalysis Ozonation machine
Reason is：By adding liquid catalyst into ozone oxidation system（Such as H2O2, deliquescent metal ion with catalytic capability）Or
Light radiation（Such as ultraviolet light）Carry out catalysis ozone and decomposes the hydroxyl radical free radical for generating more high activity current potential（·OH）, heterogeneous catalysis oxygen
Change, be easy to cause the secondary pollution of water body.And the catalyst that heterogeneous catalytic oxidation uses is solid phase, is generally urged using support type
Agent, by fixed bed it is gas-solid-liquid phase reaction realize to give up Organic substance in water decomposition.Heterogeneous ozone catalytic technology
Catalyst not easily runs off, and it can be used repeatedly, will not cause the secondary pollution of water body, be increasingly becoming industrial technology.For non-
Homogeneous catalytic ozonation technology, the performance of catalyst are to determine the key factor of water treatment effect and economy.
Hydroxyl group existing for metal oxide catalyst surface be reaction active site, the active site by with water
In zwitterion ion exchange occurs, proton, hydroxyl are discharged into solution, and the zwitterion in solution is adsorbed in and is urged
Agent surface.The metal oxide catalyst of non-loaded object is because its specific surface area is relatively low, active element easily leaches and big crystallite
For the reasons such as structure using being limited, catalytic degradation effect shows to obtain unobvious, but merely improves specific surface area of catalyst and live to it
Property does not make significant difference.
Invention content
The goal of the invention of the present invention is：In view of the above problems, a kind of urging for O3 catalytic oxidation waste water is provided
Agent and preparation method thereof, the present invention improve heterogeneous catalytic ozonation efficiency.
The technical solution adopted by the present invention is as follows：
A kind of catalyst of O3 catalytic oxidation waste water includes having the function of the kernel of catalytic action and with barrier anion
Shell, the shell is wrapped in outside kernel.
The present invention includes the kernel with the shell and catalytic action for repelling anion, and shell can provide one for kernel
The local lower environment of anion-content, and then improve the effective ozone catalyst of kernel with catalytic action in enclosure
Active site（Hydroxyl group）Amount, and then improve catalytic ozonation efficiency.
Further, according to parts by weight, including 25 ~ 35 parts of kernel, 30 ~ 65 parts of shell.
Further, several holes, a diameter of 10 ~ 100nm of the hole is distributed in the case surface.
Hole is distributed in case surface, so that waste water is passed through shell and interior nuclear reaction, waste water is avoided to be connect with kernel
Touch insufficient, raising reaction efficiency.
A kind of preparation method of the catalyst of O3 catalytic oxidation waste water, includes the following steps：
（1）The preparation of kernel：Active carbon powder and metal salt solution are thoroughly mixed, in an inert atmosphere, microwave heating
It is evaporated to moisture, it is spare to generate kernel；
（2）The preparation of shell：Anionic active agent, adhesive and pore creating material are mixed, mixture is formed, it is spare；
（3）Preliminary catalytic agent：By step（2）In mixture be wrapped in core surface, form preliminary catalytic agent, it is spare；
（4）It is dry：By step（3）Obtained preliminary catalytic agent drying, obtains secondary catalysts, spare；
（5）It crushes：Secondary catalysts are crushed to obtain finished catalyst.
Further, the step（1）In metal salt solution be include metal ion Ag+、Cu2+、Mn2+、Mg2+、Ni2+、
Ti2+、Co2+ 、Fe3+In one or more combinations metal salt.
Further, the step（1）In metallic solution a concentration of 0.5 ~ 1.5mol/L.
Further, the step（1）The power of middle microwave is 300 ~ 400W, and heating time is 1 ~ 1.5h.
Further, the step（2）Middle anion active agent, adhesive, pore creating material are according to molar ratio 8 ~ 15:5~10：2
~ 3 additions.
Further, the step（2）In anionic active agent be sulfonic acid magnesium, sodium alkyl benzene sulfonate, fatty acid methyl
Ester, oleoyl oxygroup ethanesulfonic acid sodium.
Further, the step（4）The middle dry technology used is ultrasonic wave drying or infra-red drying.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1, the present invention has the effect of repelling anion by anion active agent, is added with the shell of anion active agent, can
To provide local anion-content lower environment, the effective ozone catalytic of kernel with catalytic action in enclosure is improved
The active site of agent（Hydroxyl group）Amount, and then improve catalytic ozonation efficiency.
2, it is kernel to have catalytic action in the present invention, adds pore creating material in material in preparing for shell, makes waste water can
It to pass through shell and interior nuclear reaction, avoids waste water insufficient contact with kernel, improves reaction efficiency.
Specific implementation mode
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
This specification（Including any accessory claim, abstract）Disclosed in any feature, unless specifically stated,
It is replaced by other equivalent or with similar purpose alternative features.That is, unless specifically stated, each feature is a series of
An example in equivalent or similar characteristics.
Embodiment 1
A kind of catalyst of O3 catalytic oxidation waste water, prepares in accordance with the following steps：
（1）The preparation of kernel：By active carbon powder and 0.5 mol/L Mn (NO3)2Solution is thoroughly mixed, in N2Under compression ring border, with
It is spare to generate kernel by the power of 400W, microwave heating 1h；
（2）The preparation of shell：According to molar ratio 8:10:2 add sodium alkyl benzene sulfonates, the adhesive of Aluminum sol and polyvinyl alcohol
Pore creating material mixes, and forms mixture, spare；
（3）Preliminary catalytic agent：According to mass fraction, 30 parts of mixture is mixed with 25 parts of kernels, in mixture core surface
Shell is formed, it is spare to obtain preliminary catalytic agent；
（4）It is dry：By step（3）Obtained preliminary catalytic agent, is dried in the ultrasonic wave that power is 200W, and dry 5h is obtained
Secondary catalysts, it is spare；
（5）It crushes：Secondary catalysts are crushed to obtain finished catalyst, finished product grain size 1.5mm.
The catalytic performance test of catalyst manufactured in the present embodiment is accomplished by the following way：
Waste water：TDS is 38400mg/L, COD 600mg/L;
Ozone dosage is 500mg/L, reaction time 1h；
Control group（Without catalyst）：COD is 480mg/L, and catalyst COD is 230mg/L；
COD removal rates improve 41.7%.
Example 2
A kind of and 1 different condition of embodiment embodiment is present embodiments provided, specifically：
（1）The preparation of kernel：By active carbon powder and 1 mol/L TiSO4Solution is thoroughly mixed, in N2Under compression ring border, with 350W
Power, microwave heating 1.2h, generate kernel it is spare；
（2）The preparation of shell：According to molar ratio 10:7:2.5 adding the adhesive and carbon black of fatty acid methyl ester, vinyl acetate resin
Pore creating material, formed mixture, it is spare；
（3）Preliminary catalytic agent：According to mass fraction, 48 parts of mixture is mixed with 30 parts of kernels, in mixture core surface
Shell is formed, it is spare to obtain preliminary catalytic agent；
（4）It is dry：By step（3）Obtained preliminary catalytic agent is dried in the ultrasonic wave that power is 300W, and dry 3h obtains secondary
Grade catalyst, it is spare；
（5）It crushes：Secondary catalysts are crushed to obtain finished catalyst, finished product grain size 3mm.
The catalytic performance test of catalyst manufactured in the present embodiment is accomplished by the following way：
Waste water：TDS is 46700mg/L, COD 450mg/L;
Ozone dosage is 400mg/L, reaction time 1h；
Control group（Without catalyst）：COD is 320mg/L, and catalyst COD is 195mg/L；
COD removal rates improve 27.8%.
Embodiment 3
A kind of and Examples 1 and 2 different condition embodiment is present embodiments provided, specifically：
（1）The preparation of kernel：By active carbon powder and 1.5 mol/L Co SO4Solution is thoroughly mixed, in N2Under compression ring border, with
It is spare to generate kernel by the power of 300W, microwave heating 1.5h；
（2）The preparation of shell：According to molar ratio 15:5:3 addition sulfonic acid magnesiums, the adhesive of water and the pore creating material of polyethylene glycol, shape
Resulting mixture, it is spare；
（3）Preliminary catalytic agent：According to mass fraction, 48 parts of mixture is mixed with 30 parts of kernels, in mixture core surface
Shell is formed, it is spare to obtain preliminary catalytic agent；
（4）It is dry：By step（3）Obtained preliminary catalytic agent, in the infrared drying that power is 450W, dry 2h obtains secondary
Grade catalyst, it is spare；
（5）It crushes：Secondary catalysts are crushed to obtain finished catalyst, finished product grain size 5mm.
The catalytic performance test of catalyst manufactured in the present embodiment is accomplished by the following way：
Waste water：TDS is 57300mg/L, COD 500mg/L;
Ozone dosage is 500mg/L, reaction time 1h；
Control group（Without catalyst）：COD is 374mg/L, and catalyst COD is 260mg/L；
COD removal rates improve 22.8%.
The invention is not limited in specific implementation modes above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (10)
1. a kind of catalyst of O3 catalytic oxidation waste water, which is characterized in that include kernel with catalytic action and with resistance
Every the shell of the effect of anion, the shell is wrapped in outside kernel.
2. the catalyst of O3 catalytic oxidation waste water according to claim 1, which is characterized in that according to parts by weight, including
25 ~ 35 parts of kernel, 30 ~ 65 parts of shell.
3. the catalyst of O3 catalytic oxidation waste water according to claim 1, which is characterized in that in the case surface point
It is furnished with several holes, a diameter of 10 ~ 100nm of the hole.
4. the preparation method of the catalyst of the O3 catalytic oxidation waste water according to any one of claim 1 ~ 3, special
Sign is, includes the following steps：
（1）The preparation of kernel：Active carbon powder and metal salt solution are thoroughly mixed, in an inert atmosphere, microwave heating
It is evaporated to moisture, it is spare to generate kernel；
（2）The preparation of shell：Anionic active agent, adhesive and pore creating material are mixed, mixture is formed, it is spare；
（3）Preliminary catalytic agent：By step（2）In mixture be wrapped in core surface, form preliminary catalytic agent, it is spare；
（4）It is dry：By step（3）Obtained preliminary catalytic agent drying, obtains secondary catalysts, spare；
（5）It crushes：Secondary catalysts are crushed to obtain finished catalyst.
5. the preparation method of the catalyst of O3 catalytic oxidation waste water according to claim 4, which is characterized in that the step
Suddenly（1）In metal salt solution be include metal ion Ag+、Cu2+、Mn2+、Mg2+、Ni2+、Ti2+、Co2+ 、Fe3+In one kind or
The metal salt of multiple combinations.
6. the preparation method of the catalyst of O3 catalytic oxidation waste water according to claim 4, which is characterized in that the step
Suddenly（1）In metallic solution a concentration of 0.5 ~ 1.5mol/L.
7. the preparation method of the catalyst of O3 catalytic oxidation waste water according to claim 4, which is characterized in that the step
Suddenly（1）The power of middle microwave is 300 ~ 400W, and heating time is 1 ~ 1.5h.
8. the preparation method of the catalyst of O3 catalytic oxidation waste water according to claim 4, which is characterized in that the step
Suddenly（2）Middle anion active agent, adhesive, pore creating material are according to molar ratio 8 ~ 15:5~10：2 ~ 3 additions.
9. the preparation method of the catalyst of O3 catalytic oxidation waste water according to claim 8, which is characterized in that the step
Suddenly（2）In anionic active agent be sulfonic acid magnesium, sodium alkyl benzene sulfonate, fatty acid methyl ester, oleoyl oxygroup ethanesulfonic acid sodium.
10. the preparation method of the catalyst of O3 catalytic oxidation waste water according to claim 4, which is characterized in that described
Step（4）The middle dry technology used is ultrasonic wave drying or infra-red drying.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109336332A (en) * | 2018-11-13 | 2019-02-15 | 中石化炼化工程（集团）股份有限公司 | A kind of processing method and organic sewage treatment device suitable for high COD organic sewage |
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| CN102614840A (en) * | 2012-04-12 | 2012-08-01 | 南昌航空大学 | Preparation method for magnetic nano material for efficiently removing phosphate radicals and nitrates |
| CN105712466A (en) * | 2014-12-01 | 2016-06-29 | 抚顺环科石油化工技术开发有限公司 | Ozone catalytic wet oxidation method for phenol-containing waste water |
| CN105879676A (en) * | 2016-06-30 | 2016-08-24 | 李其忠 | Method for normal-temperature efficient catalytic degradation of VOCs waste gas of pesticide industry |
| CN106732792A (en) * | 2016-12-16 | 2017-05-31 | 煤炭科学技术研究院有限公司 | One kind treatment Coal Chemical Industry high-salt wastewater catalyst and preparation method thereof |
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2018
- 2018-07-24 CN CN201810820875.4A patent/CN108745419B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3825400A (en) * | 1973-04-17 | 1974-07-23 | V Popov | Gas fuel blowpipe for burning reaction gas mixtures |
| CN102614840A (en) * | 2012-04-12 | 2012-08-01 | 南昌航空大学 | Preparation method for magnetic nano material for efficiently removing phosphate radicals and nitrates |
| CN105712466A (en) * | 2014-12-01 | 2016-06-29 | 抚顺环科石油化工技术开发有限公司 | Ozone catalytic wet oxidation method for phenol-containing waste water |
| CN105879676A (en) * | 2016-06-30 | 2016-08-24 | 李其忠 | Method for normal-temperature efficient catalytic degradation of VOCs waste gas of pesticide industry |
| CN106732792A (en) * | 2016-12-16 | 2017-05-31 | 煤炭科学技术研究院有限公司 | One kind treatment Coal Chemical Industry high-salt wastewater catalyst and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109336332A (en) * | 2018-11-13 | 2019-02-15 | 中石化炼化工程（集团）股份有限公司 | A kind of processing method and organic sewage treatment device suitable for high COD organic sewage |
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