CN106824253A - A kind of support type ozone catalyst and preparation and application for dyeing waste water biochemistry pre-treatment - Google Patents
A kind of support type ozone catalyst and preparation and application for dyeing waste water biochemistry pre-treatment Download PDFInfo
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- CN106824253A CN106824253A CN201710025112.6A CN201710025112A CN106824253A CN 106824253 A CN106824253 A CN 106824253A CN 201710025112 A CN201710025112 A CN 201710025112A CN 106824253 A CN106824253 A CN 106824253A
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- support type
- type ozone
- ozone catalyst
- waste water
- dyeing waste
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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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/076—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
-
- 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
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
- B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
-
- 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
- C02F2101/34—Organic compounds containing oxygen
-
- 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
- C02F2101/36—Organic compounds containing halogen
-
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
Abstract
The present invention relates to a kind of support type ozone catalyst for dyeing waste water biochemistry pre-treatment and preparation and application, multi-element metal oxide support type ozone catalyst is prepared using microwave radiation technology vacuum impregnation technology, first, zeolite is pre-processed with absolute ethyl alcohol with deionized water, it is standby after dry, calcination activation；By equivalent molar than metal nitrate dissolved after, with NaOH solution regulation system pH to 7 ~ 8,1h is mixed, metal composite oxide precursor solution is obtained, under a certain pressure, by in its vacuum impregnation to Zeolite support, after reaction a period of time is carried out in microwave reactor, take out and repeat this step, finally, catalysis material is placed in 350 DEG C of Muffle kiln roasting 4h, multi-element metal oxide support type ozone catalyst is can obtain after cooling.The problems such as dyeing waste water biodegradability is poor, COD concentration is high can be solved, for water pollution process field.
Description
Technical field
The present invention relates to a kind of support type ozone catalyst for dyeing waste water biochemistry pre-treatment and preparation and application, can
To solve the problems such as dyeing waste water biodegradability is poor, COD concentration is high, for water pollution process field.
Background technology
Dyeing is typical highly water intensive industry, and nearly hundred million tons of technique softened water need to be consumed every year.Dyeing waste water comes
Source and pollutant component are sufficiently complex, with spies such as change of water quality big, content of organics is high, colourities (predominantly colored dyes) high
Point, directly discharge brings high risks to human health and living environment, while causing the waste of water resource.Dyeing waste water is most
Processed using biochemical process, especially based on Aerobic biological process method.Biochemical process has BOD5Clearance is high, technical maturity, operation
The low advantage of expense.But the progress of the development and finishing process in printing and dye-ing technology with chemical ＆ blended fabric, some new color additives etc.
The organic matter of difficult for biological degradation largely enters waste water, and the CODcr for not only causing waste water increases, and makes the biodegradability of waste water
Reduce.If only relying on the poor printing and dyeing of aerobic biochemical technique (such as contact oxidation method or activated sludge process) treatment biodegradability to give up
Water has been extremely difficult to Expected Results.Therefore, how the larger molecular organicses in waste water are converted into small organic molecule, difficult degradation
Material is converted into degradable material, be that subsequent biochemical treatment creates conditions is us so as to improve the removal efficiency of the COD of waste water
Key issue to be solved.
There is high-level oxidation technology treatment effect to stablize to dyeing waste water, effluent quality is good, biodegradability can be obtained effectively
The advantages of raising, the concern of domestic and foreign scholars is increasingly subject to, be with a wide range of applications.At present, common advanced oxidation skill
Art mainly has photocatalysis oxidation technique, Fenton, catalytic ozonation technology etc..With oxidant, electricity, illumination, catalyst etc.
Produce the extremely strong hydroxyl radical free radical of activity in the reaction, can be summed up with organic matter, replaced, electro transfer, scission of link, open loop
Can be that hardly degraded organic substance macromolecular is degraded to low toxicity or nontoxic small molecule in waste water Deng effect, generation is easy to raw
Change the material of degraded, improve the biodegradability of waste water.
Catalytic ozonation is efficient as one kind, fast, the water technology of non-secondary pollution, in drinking water, print
The association areas such as dye waste water, leather-making waste water obtain engineer applied, are also received in research field and also carry out bigger concern, but ozone
Catalytic oxidation technologies do not obtain the promotion and application of large-scale also at present, main reason is that the system of efficient ozone catalyst
Standby is the core and problem of catalytic ozonation technology.
The present invention using with natural micropore structure, bigger serface natural zeolite as carrier, it is true using microwave radiation technology
Empty infusion process prepares multi-element metal oxide support type ozone catalyst, and being acted on by the adsorption and enrichment of porous carrier can not only
For multi-element metal oxide provides larger effective area, mass transfer rate and catalytic degradation efficiency can be also improved, and enhancing is urged
The stability of agent material, the prepared ozone catalyst with high-efficiency catalytic activity effectively increases the removal effect of COD
Rate, improves the biodegradability of dyeing waste water, while the recovery for also solving suspended state catalyst is difficult and causes two to water quality
The problems such as degree pollution, for the treatment of the industrial wastewater of other difficult degradations provides theoretical foundation.
The content of the invention
It is sufficiently complex it is an object of the invention to be directed to dyeing waste water composition, with change of water quality it is big, content of organics is high,
The features such as colourity is high, biodegradability is poor, direct biochemical treatment efficiency is low, makes biochemical processing process organic loading higher, causes out
Water COD value can not be up to standard or be unable to stably reaching standard, a kind of support type ozone for improving dyeing waste water biodegradability of proposition
Catalyst and preparation and application.Pre-processed to improve the removal efficiency of COD carrying out conventional biochemical process before processing, dropped
Low operating cost, it is ensured that the treatment effeciency of subsequent biochemical treatment.The present invention is with the day with natural micropore structure, bigger serface
Right zeolite prepares multi-element metal oxide support type ozone catalyst as carrier by microwave radiation technology vacuum impregnation technology, makes work
Property component can be homogeneously dispersed in matrix and be distributed densification, with reference to the fuel factor of microwave, may be such that support materials for catalysts
Catalysis activity higher is shown, the removal efficiency of COD in dyeing waste water is effectively increased, returning for suspended state catalyst is also solved
The problems such as receiving difficulty and not good degradation effect, effectively shortens the reaction time, improves biodegradability, and energy is reduced to greatest extent
Consumption, saves material cost and operating cost.
A kind of preparation method of support type ozone catalyst for dyeing waste water biochemistry pre-treatment, it is characterised in that bag
Include following steps：
（1）Multi-element metal oxide support type ozone catalyst is prepared using microwave radiation technology vacuum impregnation technology, first, zeolite is used
Absolute ethyl alcohol is pre-processed with deionized water, standby after dry, calcination activation；
（2）By equivalent molar than metal nitrate dissolved after, with NaOH solution regulation system pH to 7 ~ 8, mix
1h, obtains metal composite oxide precursor solution, under a certain pressure, by its vacuum impregnation to Zeolite support, then at micro-
After reaction a period of time is carried out in ripple reactor, this step is taken out and repeated, finally, catalysis material is placed in 350 DEG C of Muffle furnaces
Middle roasting 4h, multi-element metal oxide support type ozone catalyst is can obtain after cooling.
Metallic element is any two or three in Mn, Fe, Cu and Ni.
Zeolite is 1 with the mass ratio of metal composite oxide presoma：（0.5~1.2）, dipping time is 2 ~ 10 times.
Vacuum pressure is 5 ~ 10MPa, and microwave irradiation time is 3 ~ 8min.
A kind of support type ozone catalyst for dyeing waste water biochemistry pre-treatment, it is characterised in that according to any of the above-described
Methods described is prepared.
What a kind of support type ozone catalyst for dyeing waste water biochemistry pre-treatment was processed before dyeing waste water biochemistry should
With.
The catalytic performance test of ozone catalyst is carried out in ozone catalytic tower, the support type ozone catalyst that will be prepared
It is filled in catalytic tower, filling rate is 50 %, and hydraulic detention time maintains 60 min, after ozonation aerated 30 min, determines RhB
COD value before and after solution catalyzing, and calculate catalysis degradation modulus of the ozone catalyst to waste water from dyestuff.
The problems such as dyeing waste water biodegradability is poor, COD concentration is high can be solved, for water pollution process field.The present invention
Using with natural micropore structure, bigger serface natural zeolite as carrier, prepared using microwave radiation technology vacuum impregnation technology
Multi-element metal oxide support type ozone catalyst, can be such that support type ozone catalyst gradually causes in the impregnation pressure for applying certain
Densification and active component can be uniformly dispersed in surface and the pore passage structure of Zeolite support, with reference to the fuel factor of microwave, can make work
Property component thermally equivalent without reunite.A process for preparing support type ozone catalyst there is good ozone catalytic activity,
Dyeing waste water biodegradability is effectively improved, is that subsequent biochemical treatment creates conditions, and it is tired to solve the recovery of suspended state catalyst
It is difficult, the problems such as two degree of pollutions and not good degradation effect are caused to water quality, substantially reduce the reaction time, improve going for COD
Except efficiency, it is adaptable to large-scale practical application.
The invention has the advantages that：
The preparation method of support type ozone catalyst proposed by the present invention, multi-element metal is prepared using microwave radiation technology vacuum impregnation technology
Oxide carried type ozone catalyst, can be such that support type ozone catalyst is gradually densified and living certain impregnation pressure is applied
Property component can be uniformly dispersed in surface and the pore passage structure of Zeolite support, with reference to the fuel factor of microwave, active component can be made equal
It is even to be heated without reuniting, and support materials for catalysts shows catalysis activity higher.
The preparation method of support type ozone catalyst proposed by the present invention, with natural micropore structure, bigger serface
Natural zeolite as carrier, the mass transfer speed of composite particles can be further improved using the adsorption and enrichment effect of porous carrier
Rate, drastically increases the oxidative degradation efficiency of organic matter.
Support type ozone catalyst prepared by the present invention not only has good stability, high, living with load capacity
Property high, low cost, the features such as COD removal effects are good, and effectively prevent from not exclusively being caused due to separating during catalytic degradation
Secondary pollution problem.
Specific embodiment
By embodiment, the present invention is described further.
Embodiment 1：
Multi-element metal oxide support type ozone catalyst is prepared using microwave radiation technology vacuum impregnation technology, first, by zeolite nothing
Water-ethanol is pre-processed with deionized water, standby after dry, calcination activation；
By equivalent molar than Fe (NO3)3·9H2O、Mn(NO3)2·4H2O and Ni (NO3)2·6H2After O is dissolved, NaOH is used
Solution regulation system pH to 7 ~ 8 or so, mixes 1h, obtains metal composite oxide precursor solution, under 10MPa, will
It is 1 according to mass ratio:1.2 vacuum impregnations after carrying out reaction 5min in microwave reactor, are taken out simultaneously in Zeolite support
This step 5 time is repeated, finally, catalysis material 350 DEG C of Muffle kiln roasting 4h is placed in, multi-element metal oxygen is can obtain after cooling
Compound support type ozone catalyst Fe2O3-MnO-NiO；The degraded of COD of the prepared support type ozone catalyst to RhB solution
Rate is 79.6 %.
Embodiment 2：
Multi-element metal oxide support type ozone catalyst is prepared using microwave radiation technology vacuum impregnation technology, first, by zeolite nothing
Water-ethanol is pre-processed with deionized water, standby after dry, calcination activation；
By equivalent molar than Mn (NO3)2·4H2O and Ni (NO3)2·6H2After O is dissolved, with NaOH solution regulation system pH
To 7 ~ 8 or so, 1h is mixed, metal composite oxide precursor solution is obtained, under 8MPa, by its vacuum impregnation to homogeneity
Measure in the Zeolite support of ratio, after carrying out reaction 10min in microwave reactor, take out and repeat this step 3 time, finally, will
Catalysis material is placed in 350 DEG C of Muffle kiln roasting 4h, and multi-element metal oxide support type ozone catalyst is can obtain after cooling
MnO-NiO；The degradation rate of COD of the prepared support type ozone catalyst to RhB solution is 67.2 %.
Embodiment 3：
Multi-element metal oxide support type ozone catalyst is prepared using microwave radiation technology vacuum impregnation technology, first, by zeolite nothing
Water-ethanol is pre-processed with deionized water, standby after dry, calcination activation；
By equivalent molar than Mn (NO3)2·4H2O and Cu (NO3)2·3H2After O is dissolved, with NaOH solution regulation system pH
To 7 ~ 8 or so, 1h is mixed, obtain metal composite oxide precursor solution, according to mass ratio be 1 by it under 5MPa:
This step 6 time is taken out and repeated to 1.2 vacuum impregnations after carrying out reaction 10min in microwave reactor, in Zeolite support,
Finally, catalysis material is placed in 350 DEG C of Muffle kiln roasting 4h, multi-element metal oxide support type ozone is can obtain after cooling
Catalyst MnO-CuO；The degradation rate of COD of the prepared support type ozone catalyst to RhB solution is 69.1 %.
Embodiment 4：
Multi-element metal oxide support type ozone catalyst is prepared using microwave radiation technology vacuum impregnation technology, first, by zeolite nothing
Water-ethanol is pre-processed with deionized water, standby after dry, calcination activation；
By equivalent molar than Fe (NO3)3·9H2O、Ni(NO3)2·6H2O and Cu (NO3)2·3H2After O is dissolved, NaOH is used
Solution regulation system pH to 7 ~ 8 or so, mixes 1h, obtains metal composite oxide precursor solution, under 10MPa, will
Its vacuum impregnation to homogenous quantities than Zeolite support in, after carrying out reaction 10min in microwave reactor, take out and repeat this
Step 3 time, finally, 350 DEG C of Muffle kiln roasting 4h is placed in by catalysis material, multi-element metal oxide is can obtain after cooling and is born
Load type ozone catalyst Fe2O3-MnO-NiO；The degradation rate of COD of the prepared support type ozone catalyst to RhB solution is
71.3 %。
Claims (5)
1. it is a kind of for dyeing waste water biochemistry pre-treatment support type ozone catalyst preparation method, it is characterised in that including
Following steps：
（1）Multi-element metal oxide support type ozone catalyst is prepared using microwave radiation technology vacuum impregnation technology, first, zeolite is used
Absolute ethyl alcohol is pre-processed with deionized water, standby after dry, calcination activation；
（2）By equivalent molar than metal nitrate dissolved after, with NaOH solution regulation system pH to 7 ~ 8, mix
1h, obtains metal composite oxide precursor solution, under a certain pressure, by its vacuum impregnation to Zeolite support, then at micro-
After reaction a period of time is carried out in ripple reactor, this step is taken out and repeated, finally, catalysis material is placed in 350 DEG C of Muffle furnaces
Middle roasting 4h, multi-element metal oxide support type ozone catalyst is can obtain after cooling.
2. it is according to claim 1 it is a kind of for dyeing waste water biochemistry pre-treatment support type ozone catalyst preparation side
Method, it is characterised in that metallic element is any two or three in Mn, Fe, Cu and Ni.
3. it is according to claim 1 it is a kind of for dyeing waste water biochemistry pre-treatment support type ozone catalyst preparation side
Method, it is characterised in that zeolite is 1 with the mass ratio of metal composite oxide presoma：（0.5~1.2）, dipping time is 2 ~ 10
It is secondary.
4. it is according to claim 1 it is a kind of for dyeing waste water biochemistry pre-treatment support type ozone catalyst preparation side
Method, it is characterised in that vacuum pressure is 5 ~ 10MPa, microwave irradiation time is 3 ~ 8min.
5. it is a kind of for dyeing waste water biochemistry pre-treatment support type ozone catalyst, it is characterised in that according to claim 1-4
Any methods described is prepared.
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Cited By (7)
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| CN108636442A (en) * | 2018-05-21 | 2018-10-12 | 北京高能时代环境技术股份有限公司 | The processing method of support type ozone catalyst, preparation method and applications and acid blue dye pollutant effluents |
| CN108970621A (en) * | 2018-08-08 | 2018-12-11 | 芜湖格丰环保科技研究院有限公司 | The method of water body COD degradation catalyst is prepared using smelting laterite-nickel ores waste residue and its ozone degradation COD is applied |
| CN110963617A (en) * | 2018-09-28 | 2020-04-07 | 宝山钢铁股份有限公司 | Device and method for removing benzaldehyde and benzotriazole in cold-rolled biochemical effluent |
| CN111747560A (en) * | 2020-06-04 | 2020-10-09 | 广东益诺欧环保股份有限公司 | System and method for treating and recycling J acid |
| CN112408578A (en) * | 2020-11-26 | 2021-02-26 | 上海绿强新材料有限公司 | Catalytic ozone oxidation honeycomb filler and preparation and printing and dyeing wastewater advanced treatment method |
| CN113648985A (en) * | 2021-02-08 | 2021-11-16 | 南京理工大学 | Two-dimensional catalytic material and preparation and application thereof |
| CN114713280A (en) * | 2022-03-09 | 2022-07-08 | 同济大学 | Preparation method of supported catalyst for catalytic oxidation treatment of refractory wastewater by ozone |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108636442A (en) * | 2018-05-21 | 2018-10-12 | 北京高能时代环境技术股份有限公司 | The processing method of support type ozone catalyst, preparation method and applications and acid blue dye pollutant effluents |
| CN108970621A (en) * | 2018-08-08 | 2018-12-11 | 芜湖格丰环保科技研究院有限公司 | The method of water body COD degradation catalyst is prepared using smelting laterite-nickel ores waste residue and its ozone degradation COD is applied |
| CN108970621B (en) * | 2018-08-08 | 2021-02-26 | 芜湖格丰环保科技研究院有限公司 | Method for preparing water body COD degradation catalyst by using laterite-nickel ore smelting waste residues and application of water body COD degradation catalyst in ozone degradation |
| CN110963617A (en) * | 2018-09-28 | 2020-04-07 | 宝山钢铁股份有限公司 | Device and method for removing benzaldehyde and benzotriazole in cold-rolled biochemical effluent |
| CN111747560A (en) * | 2020-06-04 | 2020-10-09 | 广东益诺欧环保股份有限公司 | System and method for treating and recycling J acid |
| CN112408578A (en) * | 2020-11-26 | 2021-02-26 | 上海绿强新材料有限公司 | Catalytic ozone oxidation honeycomb filler and preparation and printing and dyeing wastewater advanced treatment method |
| CN113648985A (en) * | 2021-02-08 | 2021-11-16 | 南京理工大学 | Two-dimensional catalytic material and preparation and application thereof |
| CN113648985B (en) * | 2021-02-08 | 2022-04-01 | 南京理工大学 | Two-dimensional catalytic material and preparation and application thereof |
| CN114713280A (en) * | 2022-03-09 | 2022-07-08 | 同济大学 | Preparation method of supported catalyst for catalytic oxidation treatment of refractory wastewater by ozone |
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Application publication date: 20170613 |