CN107096541A - A kind of CWO processing method compound Ru Fe Cu La Ti - Google Patents
A kind of CWO processing method compound Ru Fe Cu La Ti Download PDFInfo
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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
- 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
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8933—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/894—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with rare earths or actinides
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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
- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
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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
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
Abstract
The invention discloses a kind of CWO processing method, it is characterised in that in terms of parts by weight, and the component of catalyst includes：(a) 5 parts of Ru (OH)3；(b) 6 parts of Fe2(SO4)3；(c) 5 parts of CuSO4；(d) 12 parts of LaCl3·6H2O；(e) 5 parts of TiO2；(f) 30 parts of distilled water；(g) 5 parts of binding agents；(h) absorbent charcoal carrier of 30 parts of pretreatments.The absorbent charcoal carrier of the pretreatment is handled as carrier core by aspartic acid, and carrier shell is used as using amorphous silica-alumina.The mechanical strength and anti-wear performance of prepared catalyst are excellent, and the activity and stability of catalyst are higher, percolate are handled using above-mentioned catalyst system, its CODCr clearance is up to 95.4%, and turbidity removal rate is up to 90.6%.
Description
Technical field
It is more particularly to a kind of the present invention relates to the CWO processing method that a kind of Ru-Fe-Cu-La-Ti is combined
Catalyst and preparation method thereof and use device of high concentration hard-degraded organic waste water CWO processing, the catalyst is
A kind of " noble metal-transition metal-rare earth " composite catalyst, the present invention is used for technical field of waste water processing.
Background technology：
The processing method of organic wastewater includes Physical, chemical method, bioanalysis, ozone or hydrogen peroxide oxidation, photochemistry and urged
Change oxidation and membrane separation process.High concentration hard-degraded organic waste water includes percolate, black liquid, dyeing waste water, sulfur-bearing and given up
One of the characteristics of water, cyanide wastewater, pharmacy waste water etc., this kind of waste water is that pollutant concentration is high, its CODCrValue it is up to tens of thousands of, tens
Ten thousand even mg/L up to a million, the two of feature is containing noxious materials such as dyestuff, sulphur, cyanogen.High concentration hard-degraded organic waste water, with thing
The processing of change method, complex process and is difficult to make each pollution factor qualified discharge；Handled with biochemical process, microorganism is in high pollution thing and has
Growth is suppressed in malicious water body, therefore flow is complicated and waste water is difficult to qualified discharge；Urged with ozone or hydrogen peroxide oxidation, photochemistry
Change oxidative treatment, cost is high and is difficult to make discharged wastewater met the national standard；Handled with membrane separation process, discharged wastewater met the national standard but processing can be made
Cost is too high.It can be seen that, high concentration hard-degraded organic waste water is a kind of intractable high-concentration sewage, so far also without one kind very
Ripe not only can guarantee that standard water discharge but also economically viable processing method.
CWO (CWAO) refers under catalyst action as new and effective water process purification techniques, with
Oxygen or air are oxidant, in certain temperature (80~300 DEG C), gaseous pressure (0.5~6MPa) and reaction time (30
~120min) under conditions of, the organic pollution (COD CODCr is about 1~100g/L) of higher concentration is oxidized to
It is easy to the intermediate product or CO2, N2 and H2O of microbial degradation processing.Therefore, CWAO methods are processing high-concentration hardly-degradable organic wastes
The effective ways of water.
Chinese invention patent Authorization Notice No. CN102897895B discloses co-precipitation type cobalt Mn complex oxide catalyst
Preparation, in O3 catalytic oxidation organic matter, wherein be not directed to the doping of noble metal, and co-precipitated catalyst drops in waste water
Solve and be easy to dissolving under the sour environment produced.
Heterogeneous CWAO catalytic components have three types：Noble metal, transition metal and rare earth metal.Wherein noble metal is urged
Agent (Pt, Ru and Pd etc.) price costly, but their catalytic activity and stability be far above transition metal oxide, especially
Its such catalyst in the Oxidative Degradation Process of biodegradable organic compoundses often shows excellent catalytic activity；Transition gold
Category oxide mainly has CuO, Co3O4 and NiO etc., and such catalyst is with low cost, but poor in the presence of selectivity, in harshness
The shortcomings of loss of active component is easily caused catalyst inactivation under CWAO reaction conditions；Rare earth metal in itself without catalytic performance, but
Because its special physicochemical property, its addition can strengthen the stability and activity of catalyst, therefore rare earth metal is widely used in
Catalyst aid.Current studies in China person is main to be used as catalysis using one or both of noble metal, rare earth metal and transition metal
Agent component.
The content of the invention
Present invention aims to overcome that the problem of prior art is present is directed to high concentration hard-degraded organic waste water there is provided one kind
With CODCrClearance is high, be catalyzed in the absence of biological bacterium poisoning and secondary pollution, the simple CWO of technological process
Agent and preparation method thereof.
The object of the invention is achieved through the following technical solutions：
CWO processing method compound a kind of Ru-Fe-Cu-La-Ti, it is characterised in that in terms of parts by weight,
The component of catalyst includes：
(a) 5 parts of Ru (OH)3；
(b) 6 parts of Fe2(SO4)3；
(c) 5 parts of CuSO4；
(d) 12 parts of LaCl3·6H2O；
(e) 5 parts of TiO2；
(f) 30 parts of distilled water；
(g) 5 parts of binding agents；
(h) absorbent charcoal carrier of 30 parts of pretreatments；
One or more of the binding agent in Ludox, Alumina gel, aluminium phosphate sol；
The catalytic wet oxidation catalyst compound Ru-Fe-Cu-La-Ti is adopted to be prepared with the following method：
(1) preparation of maceration extract：The component (a) of selection, (b), (c), (d), (e), (f) and (g) are configured to maceration extract；
(2) impregnate：The absorbent charcoal carrier of pretreatment will be put into maceration extract, 15h, air are impregnated in air bath oscillator
The design temperature for bathing oscillator is 50 DEG C, and rotating speed is 300r/min；
(3) dry：Dried in electric drying oven with forced convection；
(4) it is calcined：The sample of drying is calcined 1h under the conditions of temperature is 800 DEG C, finished catalyst is obtained；
The preparation method of the absorbent charcoal carrier of the pretreatment is as follows：
(1) it is beaten after the activated carbon of 100 mesh is handled with aspartic acid, is used as carrier core；
(2) activated carbon added during the plastic of amorphous silica-alumina after aspartic acid processing；
(3) amino acid is decomposed charing by roasting, promote amorphous silicon aluminium tight activated carbon.
The composition bag of the CWO device of the catalytic wet oxidation catalyst compound Ru-Fe-Cu-La-Ti
Include：Oxygen tank, first pressure table, intake valve, outlet valve, agitating device, autoclave, thermocouple, second pressure table, explosive valve,
Electrothermal furnace, controller.The oxidation steel cylinder is connected by first pressure table and intake valve with autoclave, and the autoclave includes
Agitating device, thermocouple and electrothermal furnace, the thermocouple are connected by second pressure device with explosive valve, the agitating device and
Electrothermal furnace is connected with controller.
The consumption of the aspartic acid accounts for the 25% of activated carbon weight.
The plastic process of the amorphous silica-alumina is by the way of the continuous acid-base titration of soda acid, it would however also be possible to employ material cocurrent
The mode of neutralization.
Described is that to put into 30 parts by weight in 70 parts by weight maceration extracts pre- by the carrier active carbon that pretreatment is put into maceration extract
The carrier active carbon of processing.
The drying is by 8~12h of sample drying under 90~120 DEG C of ventilation conditions.
The roasting is that the sample of drying is placed in high temperature box type resistance furnace, is heated up with 4~8 DEG C/min rate of heat addition
To 300~600 DEG C of roastings of design temperature.
CWO device the application method compound Ru-Fe-Cu-La-Ti is to load waste water and catalyst
Begun to warm up after reactor, sealing, oxygen is passed through when being raised to design temperature and reaches setting pressure, while opening agitating device.This
The zero point of Shi Dingwei reactions, is sampled by probe tube at regular intervals later, during sampling, and opens oxygen supply valve to remain anti-
Answer the stagnation pressure of system constant.
Relative to prior art, the invention has the advantages that：
1) catalyst carrier of the present invention prepare it is simple and convenient, it is easy to industry's enlarging production；
2) rare-earth elements La and Ti are as co-catalyst, and the function with structural promoter and electronic auxiliary is greatly reduced
The number of dropouts of active component, and the whole processing procedure of the present invention only needs to a coagulant precipitation pond and an autoclave, than
Conventional materialization, biochemical and other group technologies are played, its technological process is simple；
3) mechanical strength and anti-wear performance of catalyst of the present invention are excellent, and the activity and stability of catalyst are higher；
4) under the collective effect of CWAO catalyst, high temperature, high pressure, the percolate component of difficult degradation is thoroughly divided
Solve as CO2、H2O or other small molecule organic compounds, it is to avoid suppression of the toxic pollutant to biological bacterium, will not cause secondary
Pollution.The present invention can be by the landfill leachate treatment of high concentration to being up to state standards.
Embodiment
To more fully understand the present invention, with reference to embodiment, the present invention is further illustrated, but embodiment not structure
The restriction of the paired claimed scope of the invention.
In the present invention, h represents hour, and min represents minute, and CWAO represents CWO.
Embodiment 1
A kind of preparation method of catalytic wet oxidation catalyst compound Ru-Fe-Cu-La-Ti, comprises the following steps：
1) pretreatment of carrier
(1) it is beaten after the activated carbon 100g of 100 mesh is handled with aspartic acid 20g, is used as carrier core；
(2) activated carbon added during the plastic of amorphous silica-alumina after aspartic acid processing；
(3) amino acid is decomposed charing by roasting, promote amorphous silicon aluminium tight activated carbon.
2) preparation of maceration extract：The component of selection is configured to the parts by weight of maceration extract 70；By Ru (OH)3、Fe2(SO4)3、
CuSO4、 LaCl3·6H2O、TiO2, Ludox according to quality be respectively that 2g, 4g, 3g, 5g, 3g, 8g are dissolved in 45g distilled water,
Then dust technology, which is added dropwise, makes Ru (OH)3It is completely dissolved, is configured to maceration extract；
3) impregnate：The absorbent charcoal carrier of 30 parts by weight pretreatment is put into 70 parts by weight maceration extracts, in 35 DEG C of design temperature
And impregnate 10h in rotating speed 150r/min air bath oscillator；
4) dry：In electric drying oven with forced convection, under 100 DEG C of ventilation conditions by after dipping sample dry 10h；
5) it is calcined：The sample of drying is placed in high temperature box type resistance furnace, setting is warming up to the 6 DEG C/min rate of heat addition
350 DEG C of temperature simultaneously starts timing, and the time for keeping constant temperature calcining is 3h, obtains finished catalyst.
Embodiment 2
A kind of preparation method of catalytic wet oxidation catalyst compound Ru-Fe-Cu-La-Ti, comprises the following steps：
1) pretreatment of carrier
(1) it is beaten after the activated carbon 100g of 100 mesh is handled with aspartic acid 22g, is used as carrier core；
(2) activated carbon added during the plastic of amorphous silica-alumina after aspartic acid processing；
(3) amino acid is decomposed charing by roasting, promote amorphous silicon aluminium tight activated carbon.
2) preparation of maceration extract：The component of selection is configured to the parts by weight of maceration extract 70；By Ru (OH)3、Fe2(SO4)3、
CuSO4、 LaCl3·6H2O、TiO2, Ludox according to quality be respectively that 4g, 2g, 3g, 4g, 4g, 8g are dissolved in 45g distilled water,
Then dust technology, which is added dropwise, makes Ru (OH)3It is completely dissolved, is configured to maceration extract；
3) impregnate：The absorbent charcoal carrier of 30 parts by weight pretreatment is put into 70 parts by weight maceration extracts, in 35 DEG C of design temperature
And impregnate 10h in rotating speed 150r/min air bath oscillator；
4) dry：In electric drying oven with forced convection, under 100 DEG C of ventilation conditions by after dipping sample dry 10h；
5) it is calcined：The sample of drying is placed in high temperature box type resistance furnace, setting is warming up to the 6 DEG C/min rate of heat addition
400 DEG C of temperature simultaneously starts timing, and the time for keeping constant temperature calcining is 3h, obtains finished catalyst.
Embodiment 3
A kind of preparation method of catalytic wet oxidation catalyst compound Ru-Fe-Cu-La-Ti, comprises the following steps：
1) pretreatment of carrier
(1) it is beaten after the activated carbon 100g of 100 mesh is handled with aspartic acid 24g, is used as carrier core；
(2) activated carbon added during the plastic of amorphous silica-alumina after aspartic acid processing；
(3) amino acid is decomposed charing by roasting, promote amorphous silicon aluminium tight activated carbon.
2) preparation of maceration extract：The component of selection is configured to the parts by weight of maceration extract 70；By Ru (OH)3、Fe2(SO4)3、
CuSO4、 LaCl3·6H2O、TiO2, Ludox according to quality be respectively that 3g, 3g, 5g, 4g, 3g, 7g are dissolved in 45g distilled water,
Then dust technology, which is added dropwise, makes Ru (OH)3It is completely dissolved, is configured to maceration extract；
3) impregnate：The absorbent charcoal carrier of 30 parts by weight pretreatment is put into 70 parts by weight maceration extracts, in 35 DEG C of design temperature
And impregnate 10h in rotating speed 150r/min air bath oscillator；
4) dry：In electric drying oven with forced convection, under 100 DEG C of ventilation conditions by after dipping sample dry 10h；
5) it is calcined：The sample of drying is placed in high temperature box type resistance furnace, setting is warming up to the 6 DEG C/min rate of heat addition
420 DEG C of temperature simultaneously starts timing, and the time for keeping constant temperature calcining is 3h, obtains finished catalyst.
Embodiment 4
A kind of preparation method of catalytic wet oxidation catalyst compound Ru-Fe-Cu-La-Ti, comprises the following steps：
1) pretreatment of carrier
(1) it is beaten after the activated carbon 100g of 100 mesh is handled with aspartic acid 20g, is used as carrier core；
(2) activated carbon added during the plastic of amorphous silica-alumina after aspartic acid processing；
(3) amino acid is decomposed charing by roasting, promote amorphous silicon aluminium tight activated carbon.
2) preparation of maceration extract：The component of selection is configured to the parts by weight of maceration extract 70；By Ru (OH)3、Fe2(SO4)3、
CuSO4、 LaCl3·6H2O、TiO2, Ludox according to quality be respectively that 2g, 5g, 4g, 2g, 3g, 7g are dissolved in 45g distilled water,
Then dust technology, which is added dropwise, makes Ru (OH)3It is completely dissolved, is configured to maceration extract；
3) impregnate：The absorbent charcoal carrier of 30 parts by weight pretreatment is put into 70 parts by weight maceration extracts, in 35 DEG C of design temperature
And impregnate 10h in rotating speed 150r/min air bath oscillator；
4) dry：In electric drying oven with forced convection, under 100 DEG C of ventilation conditions by after dipping sample dry 10h；
5) it is calcined：The sample of drying is placed in high temperature box type resistance furnace, setting is warming up to the 6 DEG C/min rate of heat addition
430 DEG C of temperature simultaneously starts timing, and the time for keeping constant temperature calcining is 3h, obtains finished catalyst.
Comparative example 1
By 10g Ru (OH)3With 5g LaCl3·6H2O is dissolved in 45g distilled water, and dust technology, which is then added dropwise, makes Ru (OH)3It is complete
Fully dissolved, is configured to maceration extract；The other conditions be the same as Example 1 of catalyst preparation.
Comparative example 2
By 5g Fe2(SO4)3、5g CuSO4With 5g LaCl3·6H2O is dissolved in 45g distilled water, is configured to maceration extract；Urge
Other conditions be the same as Example 1 prepared by agent.
Comparative example 3
The preparation condition of catalyst is added without catalyst with comparative example 1, but in percolate, processing percolate
It the results are shown in Table 1.
The pretreatment of percolate：
Large particulate matter in percolate is removed with the coagulation sedimentation of low cost first.Add 200mg/L's
Aluminium polychloride stirs and evenly mixs 20min into percolate, then settles 30min, and supernatant is the garbage filter of pretreatment
Liquid.Its water quality parameter of pretreated percolate：CODCr6008mg/L, 5000 times of colourity, turbidity 1725NTU, pH value
9.5。
Embodiment and comparative example method of testing：
The CWAO methods processing of percolate：The COD of former percolateCrFor 1000~60,000mg/L, 100 are added
~800mg/L aluminium polychloride, mixes 10~30min of stirring, settles 20~40min, supernatant is the rubbish of pretreatment
Percolate；The 250mL percolates pre-processed are placed in 0.5L GS type reactors, while input catalyst 2 of the present invention~
8g catalyst/L waste liquids, sets reaction temperature as 160~300 DEG C；When reactor heats to design temperature, oxygen is passed through
Or air is to 0.5~5MPa of partial pressure of oxygen of setting, starts timing, be reacted to 60~150min of setting time.It is preferred that RC is catalyzed
The CWAO methods that agent is applied to percolate are handled, CWAO reaction conditions：Catalyst amount is 4g/L (4.0g catalyst/L rubbish
Rubbish liquid), reaction temperature is 180 DEG C, and partial pressure of oxygen is 1.5MPa, and the reaction time is 90min.
The CWAO application results of each catalyst of table 1
From table 1, the catalyst of embodiment 1~4 is fine to the treatment effect of percolate.The catalyst of comparative example 1
Because bullion content is high therefore cost is high, comparative example 2 catalyst activity is relatively low, because without catalyst in comparative example 3, waste water
Oxidation efficiency is very low；Illustrate that the activity of Ru-Fe-Cu-La-Ti composite catalysts is high.Catalyst " the Ru-Fe-Cu-La- of the present invention
Catalytic activity of the catalytic activity of the Pre-Treatment of Activated charcoals of Ti/ " apparently higher than comparative example 1-3, it is seen that " Ru-Fe-Cu-La-Ti/ is pre-
Handle activated carbon " it is used for percolate, achieve unexpected effect.Thus analyze, may between the component of catalyst
In the presence of synergy.
Claims (7)
1. CWO processing method compound a kind of Ru-Fe-Cu-La-Ti, it is characterised in that in terms of parts by weight, urge
The component of agent includes：
(a) 5 parts of Ru (OH)3；
(b) 6 parts of Fe2(SO4)3；
(c) 5 parts of CuSO4；
(d) 12 parts of LaCl3·6H2O；
(e) 5 parts of TiO2；
(f) 30 parts of distilled water；
(g) 5 parts of binding agents；
(h) absorbent charcoal carrier of 30 parts of pretreatments；
One or more of the binding agent in Ludox, Alumina gel, aluminium phosphate sol；
The catalytic wet oxidation catalyst is adopted to be prepared with the following method：
(1) preparation of maceration extract：The component (a) of selection, (b), (c), (d), (e), (f) and (g) are configured to maceration extract；
(2) impregnate：The absorbent charcoal carrier of pretreatment will be put into maceration extract, 15h is impregnated in air bath oscillator, air bath is shaken
The design temperature for swinging device is 50 DEG C, and rotating speed is 300r/min；
(3) dry：Dried in electric drying oven with forced convection；
(4) it is calcined：The sample of drying is calcined 1h under the conditions of temperature is 800 DEG C, finished catalyst is obtained；
The preparation method of the absorbent charcoal carrier of the pretreatment is as follows：
(1) it is beaten after the activated carbon of 100 mesh is handled with aspartic acid, is used as carrier core；
(2) activated carbon added during the plastic of amorphous silica-alumina after aspartic acid processing；
(3) amino acid is decomposed charing by roasting, promote amorphous silicon aluminium tight activated carbon.
The composition of the CWO device of the catalytic wet oxidation catalyst includes：Oxygen tank, first pressure table, air inlet
Valve, outlet valve, agitating device, autoclave, thermocouple, second pressure table, explosive valve, electrothermal furnace, controller.The oxidation steel cylinder
It is connected by first pressure table and intake valve with autoclave, the autoclave includes agitating device, thermocouple and electrothermal furnace, institute
State thermocouple by second pressure device with explosive valve to be connected, the agitating device and electrothermal furnace are connected with controller.
2. CWO processing method compound Ru-Fe-Cu-La-Ti according to claim 1, it is characterised in that
The consumption of the aspartic acid accounts for the 25% of activated carbon weight.
3. CWO processing method compound Ru-Fe-Cu-La-Ti according to claim 1, it is characterised in that
The plastic process of amorphous silica-alumina is by the way of the continuous acid-base titration of soda acid, it would however also be possible to employ the mode that material cocurrent is neutralized.
4. CWO processing method compound Ru-Fe-Cu-La-Ti according to claim 1, it is characterised in that
Described is the load that the pretreatment of 30 parts by weight is put into 70 parts by weight maceration extracts by the carrier active carbon that pretreatment is put into maceration extract
Body activated carbon.
5. CWO processing method compound Ru-Fe-Cu-La-Ti according to claim 1, it is characterised in that
The drying is by 8~12h of sample drying under 90~120 DEG C of ventilation conditions.
6. CWO processing method compound Ru-Fe-Cu-La-Ti according to claim 1, it is characterised in that
The roasting is that the sample of drying is placed in high temperature box type resistance furnace, and setting temperature is warming up to 4~8 DEG C/min rate of heat addition
300~600 DEG C of roastings of degree.
7. CWO processing method compound Ru-Fe-Cu-La-Ti according to claim 1, its catalytic wet
Oxidation unit application method is that waste water and catalyst are loaded into reactor, begins to warm up, is passed through when being raised to design temperature after sealing
Oxygen reaches setting pressure, while opening agitating device.Now it is set to the zero point of reaction, passes through sampling at regular intervals later
Pipe is sampled, during sampling, and opens oxygen supply valve constant with the stagnation pressure of maintenance reaction system.
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| CN114950404A (en) * | 2022-05-19 | 2022-08-30 | 中国科学院兰州化学物理研究所 | Wear-resistant ammonia oxidation catalyst and preparation method and application thereof |
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| ZHANG YONG-LI,ET AL: "Preparation，Characterization and Mechanism of Cu-Fe-Ｒu-La /γ-Al2O3 Catalysts for Wastewater Wet Oxidation", 《人工晶体学报》 * |
| 张永利: "催化湿式氧化技术处理印染废水的研究", 《东北大学博士学位论文》 * |
| 王庆雨，等: "钌催化剂在模拟印染废水CWAO法处理中的应用", 《当代化工》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114950404A (en) * | 2022-05-19 | 2022-08-30 | 中国科学院兰州化学物理研究所 | Wear-resistant ammonia oxidation catalyst and preparation method and application thereof |
| CN114950404B (en) * | 2022-05-19 | 2023-11-17 | 中国科学院兰州化学物理研究所 | Wear-resistant ammonia oxidation catalyst and preparation method and application thereof |
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