CN102029165A - Method for preparing ozone catalytic oxidation catalyst for treating coking wastewater - Google Patents
Method for preparing ozone catalytic oxidation catalyst for treating coking wastewater Download PDFInfo
- Publication number
- CN102029165A CN102029165A CN 201010539507 CN201010539507A CN102029165A CN 102029165 A CN102029165 A CN 102029165A CN 201010539507 CN201010539507 CN 201010539507 CN 201010539507 A CN201010539507 A CN 201010539507A CN 102029165 A CN102029165 A CN 102029165A
- Authority
- CN
- China
- Prior art keywords
- catalyst
- amorphous alumina
- solution
- manganese
- iron
- 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.)
- Granted
Links
Landscapes
- Catalysts (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a method for preparing an ozone catalytic oxidation catalyst for treating coking wastewater, which is characterized in that: amorphous alumina is taken as carrier powder; and in the rolling granulating process, active ingredients, namely vanadium, iron and manganese are sprayed in a solution mode and are granulated, cured, dried and roasted to prepare a finished product catalyst. The catalyst is mainly used for removing nonbiodegradable organic pollutants from the coking wastewater. The amorphous alumina is prepared by quickly dehydrating industrial aluminum hydroxide at a high temperature, and has the specific surface area of 150 to 350m<2>/g, the total pore volume of 0.20 to 0.45ml/g and the average particle size of 1 to 80mu m. The active ingredients, namely the iron and the manganese in the mode of nitrate and the vanadium in the mode of ammonium metavanadate are added with water to be prepared into solution, and the spray amount of the solution is 2 to 50 percent based on the total mass of the amorphous alumina. The load capacity of the active ingredients, namely the iron, the manganese and the vanadium is 0.1 to 20.0 weight percent based on the total mass of the amorphous alumina.
Description
Technical field:
The present invention relates to catalyst and make the field, be a kind of catalytic ozonation Preparation of catalysts method of Treatment of Wastewater in Coking, aim to provide the method for making of the long-life catalytic ozonation catalyst of a kind of preparation technology high activity simple, with low cost.Catalyst of the present invention is mainly used in the catalytic ozonation method and efficiently removes organic pollution in the coking chemical waste water.
Background of invention:
Coking chemical waste water is the waste water that produces in coal system coke, gas purification and the matchmakerization product removal process, is subjected to all multifactor influences such as raw coal character, coke making process, coke chemicals recovery, and its complicated component is changeable, belongs to unmanageable industrial wastewater.Hardly degraded organic substance matter occupies the majority in the coking chemical waste water, mainly contains phenols, polycyclic aromatic hydrocarbon, itrogenous organic substance and heterocyclic compound, and wherein the phenolic compound based on phenol accounts for more than 70% of total amount of organic.These compounds are difficult to be degraded by microorganisms, and are very harmful in the medium-term and long-term accumulation of environment, as not treated or not exclusively just discharging of processing, will cause great harm to environment.
At the difficult biochemical of this type of waste water, the characteristics of difficult degradation, various new technologies are emerged in large numbers in succession, as senior oxidation technologies such as Fenton method, ozone oxidation, photochemical catalytic oxidation, electrochemical oxidation, ultrasonic wave treatment technology, catalytic wet oxidation and microwave induction catalytic oxidations.The Fenton method is to press Fe at acid condition
2+Catalysis H
2O
2Produce OH, OH has extremely strong oxidability, can be with organic pollution oxidative degradation in the short time.Because Fe
2+Be dissolved in the solution Fe
2+Difficult separate recovery, easily run off and cause secondary pollution with reaction medium.The CWO technology is a kind of treatment technology (US4699720) of handling high concentration difficult for biological degradation organic wastewater that the eighties grows up in the world, it be in reactor under catalyst action, under high-temperature and high-pressure conditions, directly the oxidation operation in the pollutant is become CO with oxygen
2, H
2Harmless objects such as O reach the purpose of purification.But owing to need HTHP, the application conditions restriction is strict, causes the catalytic wet oxidation technology to still have bigger limitation on practical application is promoted.
Photocatalytic oxidation is to cause reaction between electronics and the space by luminous energy, produces electronics with strong reactivity (hole to).These electronics (hole to) are moved to particle surface, just can participate in the carrying out with the accelerated oxidation reduction reaction.Photocatalytic oxidation all has higher removal to aldehydes matter in the water and other organic matters.Liu Hong etc. [environmental science and technology, 2006,29 (2): 103-105] adopt the coking chemical waste water after photocatalytic oxidation is handled biochemical treatment, and coking chemical waste water CODcr value is reduced to 53.1mg/L from 350.3mg/L, and the clearance of CODcr can reach 84.8%.But also there is certain limitation in this method, shows that mainly the catalytic efficiency of catalyst hangs down and aspects such as the conduction efficiency of light in high-concentration waste water is low.
The catalytic ozonation technology can be difficult to ozone alcohol, ketone, organic acid and the Ester continuation oxidation Decomposition that direct oxidation is decomposed, and is more thorough to the organic pollution oxidation, removes the efficient height.Adopt ozone oxidation method Treatment of Wastewater in Coking, only need ozone generating apparatus, need not medicament purchases and transports, and technology is simple, convenient, do not increase other harmful substance in disposing waste liquid, non-secondary pollution does not need further processing, the core technology of its process implementing be development and develop that a kind of technology is simple, environmental protection, cheap heterogeneous catalysis.
The patent of Tsing-Hua University [CN1785511A] discloses a kind of Ru/Al
2O
3The catalytic ozonation catalyst adopts equi-volume impregnating with RuCl
3Solution and Al
2O
3The carrier equal-volume mixes, and floods in shaking table, obtains finished catalyst through steps such as super-dry, heating using microwaves again.This catalyst all has good effect of removing to aldehydes matter, little molecule acid.But this method selects for use noble metal as active component, and cost is too high, and the mode industrialization difficulty of heating using microwave.
The patent of Beijing Jiaotong University [100395022C] provide a kind of activated charcoal carried copper oxide catalyst, is used for the processing of coking chemical waste water, and this catalyst is successively used 10%NaOH, 10%HNO with active carbon
3Solution-treated is again with Cu (NO
3)
2Solution adds fully stirring in the above-mentioned processed active carbon, drips NaHCO
3, until producing a large amount of precipitations, slaking, filtration washing, oven dry, roasting obtain catalyst prod.This catalyst can be reduced to the CODcr value of coking chemical waste water to 60mg/L, reaches discharging standards.But this catalyst preparation process complexity, industrialization are amplified difficulty, and the intermediate demand water-washing step has to contain dirty waste water and discharge, contaminated environment, and in the literary composition and not mentioned life of catalyst.And adopt precipitation method preparation, the load of active component inevitably causes the specific area and the pore volume loss of catalyst, has influenced absorption, the catalytic performance of catalyst.
Summary of the invention:
The present invention is directed to problems of the prior art, a kind of method for preparing catalyst that catalytic ozonation is removed the coking chemical waste water organic pollution that is used for is provided.This catalyst preparation process is simple, and is with low cost, the catalytic activity height, and stable performance, the waste water after the processing need not to carry out after-treatment again, can directly discharge.
The present invention is a kind of catalytic ozonation Preparation of catalysts method of Treatment of Wastewater in Coking, it is characterized in that:
With the amorphous alumina is carrier powder, in the rolling granulation process, active component vanadium, iron, manganese is sprayed into the form of solution, through making finished catalyst after granulation, maintenance, oven dry, the roasting.This catalyst is mainly used in the removal of the organic pollution of the difficult degradation in the coking chemical waste water.Specifically comprise following step:
(a) slaine of active component vanadium, iron, manganese is dissolved in water wiring solution-forming;
(b) amorphous alumina is put into the rotation comminutor, the solution that step (a) is obtained sprays into the granulation of rolling, and the diameter of control granulation is 1～8mm;
(c) the particle maintenance under 100～110 ℃ water vapour condition that step (b) is obtained, curing time 3～24 hours;
(d) catalyst drying, the roasting that step (c) is obtained obtains finished catalyst.The bake out temperature of catalyst is 50～180 ℃, and be 2～10 hours drying time, and sintering temperature is 400～600 ℃, and roasting time is 2～8 hours.
Described amorphous alumina is made through the high temperature fast dewatering by industrial aluminium hydroxide, and its specific area is 150～350m
2/ g, total pore volume 0.20～0.45ml/g, particle mean size 1～80 μ m.
Described active component iron, manganese are with the form of nitrate, and vanadium adds the water wiring solution-forming with the form of ammonium metavanadate, and the solution straying quatity is 2～50% of an amorphous alumina gross mass.
The load capacity of described active constituent vanadium, iron, manganese is 0.1～20.0wt% of amorphous alumina gross mass.
According to preparation method of the present invention, it is characterized in that:
Described active component iron, manganese are with the form of nitrate, and vanadium adds the water wiring solution-forming with the form of ammonium metavanadate, and the solution straying quatity is 3～48% of an amorphous alumina gross mass.
The load capacity of described active constituent vanadium, iron, manganese is 0.5～10wt% of amorphous alumina gross mass.
Can be used for the catalytic ozonation reaction of the removal of organic pollution in the various wastewater with the catalyst of the method production.According to the present invention, be specially adapted to the efficient removal of organic pollution in the coking chemical waste water by the catalyst of this method production.
Only with 3 processing steps fast and the economic catalyst that is used for efficiently removing the coking chemical waste water organic pollution of producing, preparation process is simple for technology of the present invention, economic environmental protection, and suitability for industrialized is amplified.
Because this catalyst activity component particles particle diameter is little, be evenly distributed, and the specific area and the pore volume of preparation catalyst are bigger, have better absorption, catalytic performance, and therefore catalyst of the present invention has high activity and life-span.
The specific embodiment:
Embodiment 1
Get 129gNH
4VO
3Solid adds 129g oxalic acid, adds the water-soluble one-tenth solution of 1.5kg, slowly adds 505gFe (NO in this solution
3)
39H
2O solid, 412g content are 50% Mn (NO
3)
2Solution, dissolving obtains solution.Get 5.4kg amorphous alumina (CNOOC Tianjin Chemical Research ﹠ Desing Inst produce, trade names AKF101), spray into the solution that the prepares granulation of rolling and stop during to particle diameter 3mm, at 101 ℃ of following maintenance 20hr, 110 ℃ of dry 4hr, 550 ℃ of roasting 3hr obtain the catalytic ozonation catalyst.The specific area and the active component content of catalyst finished product are listed in table 1.
Catalyst performance evaluation is by realizing with lower device:
Reactor: fixed bed reactors
Loaded catalyst: 100ml, the filling ratio of height to diameter is 4: 1
Temperature: normal temperature
The time of staying: 20min
Device running time: 1000hr
Ozone generating capacity: 4.5g/hr
Wastewater source: be selected from certain Coking Plant Wastewater, enter the preceding import CODcr value of device for catalyzing and oxidating ozone: 290～350mg/L.
The evaluation result of catalyst sees Table 2.
Embodiment 2
The configuration selection of active component solution is equivalent to the ammonium metavanadate of amorphous alumina carrier quality 1.0%, ferric nitrate, and manganese nitrate, all the other catalyst preparation step are with embodiment 1.The specific area and the active component content of catalyst finished product are listed in table 1.
This catalyst is to test as the method among the embodiment 1, and the evaluation result of its catalyst sees Table 2.
Embodiment 3:
The configuration selection of active component solution is equivalent to the ammonium metavanadate of amorphous alumina carrier quality 3.0%, ferric nitrate, and manganese nitrate, all the other catalyst preparation step are with embodiment 1.The specific area and the active component content of catalyst finished product are listed in table 1.
This catalyst is to test as the method among the embodiment 1, and the evaluation result of its catalyst sees Table 2.
Embodiment 4:
The granulation of rolling in the catalyst preparation process stops when particle diameter 6mm, and all the other catalyst preparation step are with embodiment 1.The specific area and the active component content of catalyst finished product are listed in table 1.
This catalyst is to test as the method among the embodiment 1, and the evaluation result of its catalyst sees Table 2.
Comparative example 1:
Get 129gNH
4VO
3Solid adds 129g oxalic acid, adds the water-soluble one-tenth solution of 1.5kg, adds 505gFe (NO in this solution
3)
39H
2O solid, 412g content are 50% Mn (NO
3)
2Solution, dissolving obtains solution, is diluted to 3L.Get the 5kg alumina support (diameter 3～5mm), with above-mentioned maceration extract incipient impregnation to carrier, 110 ℃ of dry 4hr, 550 ℃ of roasting 3hr obtain the catalytic ozonation catalyst.The specific area and the active component content of catalyst finished product are listed in table 1.
This catalyst is to test as the method among the embodiment 1, and the evaluation result of its catalyst sees Table 2.
Comparative example 2:
The configuration selection of active component solution is equivalent to the ammonium metavanadate of amorphous alumina carrier quality 1.0%, ferric nitrate, and manganese nitrate, all the other catalyst preparation step are with comparative example 1.The specific area and the active component content of catalyst finished product are listed in table 1.
This catalyst is to test as the method among the embodiment 1, and the evaluation result of its catalyst sees Table 2.
The specific area of table 1 catalyst and active component content
CODcr data contrast before and after table 2 wastewater treatment
Claims (2)
1. the catalytic ozonation Preparation of catalysts method of a Treatment of Wastewater in Coking is characterized in that:
With the amorphous alumina is carrier powder, in the rolling granulation process, active component vanadium, iron, manganese are sprayed into the form of solution, through making finished catalyst after granulation, maintenance, oven dry, the roasting, this catalyst is mainly used in the removal of the organic pollution of the difficult degradation in the coking chemical waste water, specifically comprises following step:
(a) slaine of active component vanadium, iron, manganese is dissolved in water wiring solution-forming;
(b) amorphous alumina is put into the rotation comminutor, the solution that step (a) is obtained sprays into the granulation of rolling, and the diameter of control granulation is 1～8mm;
(c) the particle maintenance under 100～110 ℃ water vapour condition that step (b) is obtained, curing time 3～24 hours;
(d) catalyst drying, the roasting that step (c) is obtained obtains finished catalyst, and the bake out temperature of catalyst is 50～180 ℃, and be 2～10 hours drying time, and sintering temperature is 400～600 ℃, and roasting time is 2～8 hours;
Described amorphous alumina is made through the high temperature fast dewatering by industrial aluminium hydroxide, and its specific area is 150～350m
2/ g, total pore volume 0.20～0.45ml/g, particle mean size 1～80 μ m;
Described active component iron, manganese are with the form of nitrate, and vanadium adds the water wiring solution-forming with the form of ammonium metavanadate, and the solution straying quatity is 2～50% of an amorphous alumina gross mass;
The load capacity of described active constituent vanadium, iron, manganese is 0.1～20.0wt% of amorphous alumina gross mass.
2. according to the described preparation method of claim 1, it is characterized in that:
Described active component iron, manganese are with the form of nitrate, and vanadium adds the water wiring solution-forming with the form of ammonium metavanadate, and the solution straying quatity is 3～48% of an amorphous alumina gross mass;
The load capacity of described active constituent vanadium, iron, manganese is 0.5～10wt% of amorphous alumina gross mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010539507A CN102029165B (en) | 2010-11-09 | 2010-11-09 | Method for preparing ozone catalytic oxidation catalyst for treating coking wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010539507A CN102029165B (en) | 2010-11-09 | 2010-11-09 | Method for preparing ozone catalytic oxidation catalyst for treating coking wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102029165A true CN102029165A (en) | 2011-04-27 |
| CN102029165B CN102029165B (en) | 2012-10-17 |
Family
ID=43882945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010539507A Active CN102029165B (en) | 2010-11-09 | 2010-11-09 | Method for preparing ozone catalytic oxidation catalyst for treating coking wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102029165B (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794182A (en) * | 2012-08-21 | 2012-11-28 | 泰山医学院 | Preparation method of composite ozonation solid catalyst and catalyst |
| CN102886257A (en) * | 2012-10-22 | 2013-01-23 | 安徽工业大学 | Manganese-base catalyst for synthesizing alpha-tetralone from tetrahydronaphthalene and preparation method thereof |
| CN103991947A (en) * | 2014-05-16 | 2014-08-20 | 上海纳米技术及应用国家工程研究中心有限公司 | Method for ozonizing coking wastewater by using modified molecular sieve as catalyst |
| CN104289229A (en) * | 2014-10-27 | 2015-01-21 | 北京碧水源环境工程有限公司 | Preparation method for load transition metal catalyst for ozone oxidation as well as load transition metal catalyst and application thereof |
| CN104549316A (en) * | 2013-10-15 | 2015-04-29 | 中国石油化工股份有限公司 | Catalyst for performing sodium hypochlorite catalytic oxidation on biorefractory wastewater and preparation method of catalyst |
| CN105013504A (en) * | 2015-07-20 | 2015-11-04 | 华南理工大学 | Loaded binary composite metal oxide catalytic ozonation catalyst and preparation method thereof |
| CN105688928A (en) * | 2014-11-27 | 2016-06-22 | 中国海洋石油总公司 | Ozone catalytic oxidation catalyst and preparation method and application thereof |
| CN105923697A (en) * | 2016-06-08 | 2016-09-07 | 鞍山市晨润环境科技有限公司 | Multi-stage photocatalytic ozonidation reactor and preparation method of photocatalyst |
| CN107827216A (en) * | 2017-11-10 | 2018-03-23 | 郭栓海 | One kind printing and dyeing slurry waste water treating agent, preparation method and applications |
| CN108993531A (en) * | 2018-08-28 | 2018-12-14 | 武汉科技大学 | A kind of method of spent FCC catalyst resource utilization |
| CN109465014A (en) * | 2018-12-19 | 2019-03-15 | 中大立信（北京）技术发展有限公司 | A kind of dual purpose catalyst, the preparation method and the usage of controllable ozone and decomposing hydrogen dioxide solution speed |
| CN109731575A (en) * | 2018-06-29 | 2019-05-10 | 光大水务（深圳）有限公司 | The Fenton sludge catalyst of catalytic ozonation nbsCOD and its preparation, application method |
| CN110624560A (en) * | 2019-09-17 | 2019-12-31 | 吉林师范大学 | FeVO for photo-Fenton combined catalysis4/TiO2Porous catalyst membrane layer material and preparation method thereof |
| US10662095B2 (en) | 2015-01-19 | 2020-05-26 | Institute Of Process Engineering, Chinese Academy Of Sciences | Ozone-photocatalysis reactor and water treatment method |
| CN111229244A (en) * | 2018-11-28 | 2020-06-05 | 中蓝连海设计研究院有限公司 | Ozone catalytic oxidation catalyst and preparation method and application thereof |
| CN114289027A (en) * | 2021-11-24 | 2022-04-08 | 山东华特环保科技有限公司 | Efficient composite ozone catalyst and preparation method and application thereof |
| CN115282979A (en) * | 2022-08-01 | 2022-11-04 | 深水海纳水务集团股份有限公司 | Preparation method and application of modified manganese-based heterogeneous ozone catalyst |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307929A (en) * | 2000-12-25 | 2001-08-15 | 化学工业部天津化工研究设计院 | Preparation process of alumina adsorbant |
| CN1836768A (en) * | 2005-03-25 | 2006-09-27 | 中国石油化工股份有限公司 | Claus tail gas hydrogenation catalyst |
| CN1868916A (en) * | 2006-06-07 | 2006-11-29 | 哈尔滨工业大学 | Catalytic ozonization water treatment method |
| CN101143325A (en) * | 2006-09-13 | 2008-03-19 | 中国科学院大连化学物理研究所 | Method for preparing catalyst and application thereof |
-
2010
- 2010-11-09 CN CN201010539507A patent/CN102029165B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307929A (en) * | 2000-12-25 | 2001-08-15 | 化学工业部天津化工研究设计院 | Preparation process of alumina adsorbant |
| CN1836768A (en) * | 2005-03-25 | 2006-09-27 | 中国石油化工股份有限公司 | Claus tail gas hydrogenation catalyst |
| CN1868916A (en) * | 2006-06-07 | 2006-11-29 | 哈尔滨工业大学 | Catalytic ozonization water treatment method |
| CN101143325A (en) * | 2006-09-13 | 2008-03-19 | 中国科学院大连化学物理研究所 | Method for preparing catalyst and application thereof |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794182A (en) * | 2012-08-21 | 2012-11-28 | 泰山医学院 | Preparation method of composite ozonation solid catalyst and catalyst |
| CN102886257A (en) * | 2012-10-22 | 2013-01-23 | 安徽工业大学 | Manganese-base catalyst for synthesizing alpha-tetralone from tetrahydronaphthalene and preparation method thereof |
| CN104549316A (en) * | 2013-10-15 | 2015-04-29 | 中国石油化工股份有限公司 | Catalyst for performing sodium hypochlorite catalytic oxidation on biorefractory wastewater and preparation method of catalyst |
| CN103991947A (en) * | 2014-05-16 | 2014-08-20 | 上海纳米技术及应用国家工程研究中心有限公司 | Method for ozonizing coking wastewater by using modified molecular sieve as catalyst |
| CN103991947B (en) * | 2014-05-16 | 2016-06-15 | 上海纳米技术及应用国家工程研究中心有限公司 | The method of modified molecular screen catalysis ozone Treatment of Wastewater in Coking |
| CN104289229A (en) * | 2014-10-27 | 2015-01-21 | 北京碧水源环境工程有限公司 | Preparation method for load transition metal catalyst for ozone oxidation as well as load transition metal catalyst and application thereof |
| CN105688928B (en) * | 2014-11-27 | 2018-05-15 | 中国海洋石油集团有限公司 | A kind of ozone catalytic oxidation catalyst and its preparation method and application |
| CN105688928A (en) * | 2014-11-27 | 2016-06-22 | 中国海洋石油总公司 | Ozone catalytic oxidation catalyst and preparation method and application thereof |
| US10662095B2 (en) | 2015-01-19 | 2020-05-26 | Institute Of Process Engineering, Chinese Academy Of Sciences | Ozone-photocatalysis reactor and water treatment method |
| CN105013504A (en) * | 2015-07-20 | 2015-11-04 | 华南理工大学 | Loaded binary composite metal oxide catalytic ozonation catalyst and preparation method thereof |
| CN105923697B (en) * | 2016-06-08 | 2018-12-11 | 鞍山市亿方环境科技有限公司 | The preparation method of multi-stag photocatalytic ozonation reactor and its photochemical catalyst |
| CN105923697A (en) * | 2016-06-08 | 2016-09-07 | 鞍山市晨润环境科技有限公司 | Multi-stage photocatalytic ozonidation reactor and preparation method of photocatalyst |
| CN107827216A (en) * | 2017-11-10 | 2018-03-23 | 郭栓海 | One kind printing and dyeing slurry waste water treating agent, preparation method and applications |
| CN109731575A (en) * | 2018-06-29 | 2019-05-10 | 光大水务（深圳）有限公司 | The Fenton sludge catalyst of catalytic ozonation nbsCOD and its preparation, application method |
| CN108993531B (en) * | 2018-08-28 | 2021-07-20 | 武汉科技大学 | Resource utilization method of waste FCC catalyst |
| CN108993531A (en) * | 2018-08-28 | 2018-12-14 | 武汉科技大学 | A kind of method of spent FCC catalyst resource utilization |
| CN111229244B (en) * | 2018-11-28 | 2021-12-21 | 中蓝连海设计研究院有限公司 | Ozone catalytic oxidation catalyst and preparation method and application thereof |
| CN111229244A (en) * | 2018-11-28 | 2020-06-05 | 中蓝连海设计研究院有限公司 | Ozone catalytic oxidation catalyst and preparation method and application thereof |
| CN109465014A (en) * | 2018-12-19 | 2019-03-15 | 中大立信（北京）技术发展有限公司 | A kind of dual purpose catalyst, the preparation method and the usage of controllable ozone and decomposing hydrogen dioxide solution speed |
| CN109465014B (en) * | 2018-12-19 | 2021-08-03 | 中大立信（北京）技术发展有限公司 | Double-effect catalyst capable of regulating and controlling decomposition rate of ozone and hydrogen peroxide, preparation method and application thereof |
| CN110624560A (en) * | 2019-09-17 | 2019-12-31 | 吉林师范大学 | FeVO for photo-Fenton combined catalysis4/TiO2Porous catalyst membrane layer material and preparation method thereof |
| CN114289027A (en) * | 2021-11-24 | 2022-04-08 | 山东华特环保科技有限公司 | Efficient composite ozone catalyst and preparation method and application thereof |
| CN115282979A (en) * | 2022-08-01 | 2022-11-04 | 深水海纳水务集团股份有限公司 | Preparation method and application of modified manganese-based heterogeneous ozone catalyst |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102029165B (en) | 2012-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102029165B (en) | Method for preparing ozone catalytic oxidation catalyst for treating coking wastewater | |
| Sun et al. | Tailored design of graphitic biochar for high-efficiency and chemical-free microwave-assisted removal of refractory organic contaminants | |
| CN101982237B (en) | Preparation method of ozone catalytic oxidation catalyst used for treating oil refining waste water | |
| CN100395022C (en) | Activated charcoal carried copper oxide catalyst and process for preparing same | |
| CN102941084A (en) | Method for preparing double-component metallic oxide catalytic ozonation catalyst | |
| CN105080565A (en) | Method for preparing supported ozone oxidation catalyst | |
| CN111375406B (en) | Ozone catalytic oxidation catalyst and preparation method thereof | |
| CN104646020A (en) | Ozone catalyst and preparation method | |
| CN108993475B (en) | Ternary composite material heterogeneous light Fenton catalyst and preparation and application thereof | |
| CN110052268A (en) | A kind of ozone catalytic oxidation catalyst and preparation method thereof | |
| CN105080550B (en) | The preparation method of the ozone oxidation catalyst of gas treatment waste water | |
| CN111111664A (en) | Catalyst for Fenton-like continuous treatment of low-concentration organic wastewater and preparation method and application thereof | |
| CN102008965B (en) | Method for preparing ozone catalytic oxidation catalyst for treating cyanide waste water | |
| Shi et al. | Waste preserved wood derived biochar catalyst for promoted peroxymonosulfate activation towards bisphenol A degradation with low metal ion release: The insight into the mechanisms | |
| CN113546632A (en) | Catalyst for treating phenolic wastewater by wet oxidation method and preparation method thereof | |
| CN109569583A (en) | A kind of preparation method and application of coal chemical industrial waste water advanced treating catalyst | |
| CN1325161C (en) | Catalyst in use for treating sewage through heterogeneous catalysis and oxidation, and preparing method | |
| CN113828332A (en) | Cobalt sulfide supported charcoal catalyst and preparation method and application thereof | |
| CN108993510A (en) | A kind of activation persulfate tire C catalyst and preparation and application | |
| CN106512988A (en) | Molecular sieve loaded MnO2-ZnO ozone catalyst and preparation method thereof | |
| CN107235571B (en) | Method and device for efficiently removing SCOD (selective catalytic oxidation) in coking reverse osmosis concentrated water | |
| CN106552644B (en) | Ozone catalyst for difficult biochemical wastewater and preparation method thereof | |
| CN101423261A (en) | Method and device for degradation of contaminant by microwave reinforcement catalytic wet-type oxidation | |
| CN115212884B (en) | Preparation method and application of catalyst based on metal ion reinforced free radical domination | |
| CN109174199B (en) | Method for preparing Fenton-like catalyst and synchronously regenerating active carbon by microwave and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |