CN105771969B - A kind of targeting method for preparing catalyst of processing hydrocarbon-containifirst waste water - Google Patents
A kind of targeting method for preparing catalyst of processing hydrocarbon-containifirst waste water Download PDFInfo
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- CN105771969B CN105771969B CN201610218965.7A CN201610218965A CN105771969B CN 105771969 B CN105771969 B CN 105771969B CN 201610218965 A CN201610218965 A CN 201610218965A CN 105771969 B CN105771969 B CN 105771969B
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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
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/83—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with 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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- 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
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/32—Manganese, technetium or rhenium
- B01J23/34—Manganese
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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
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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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
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Abstract
A kind of targeting method for preparing catalyst of processing hydrocarbon-containifirst waste water, dissolves the solution that active component salt is 5-15% in 40-80 DEG C of deionized water；Ammonium salt, which is added, makes pH be increased to 6.5-7.5, continues that the temperature is kept to stir 40-80 minutes with 60-100 revs/min of speed；Filtering is used in combination deionized water to clean 3-5 times；Obtain nodular powder within dry 3-6 hours in 100-110 DEG C of Muffle furnace, it is by mass percentage the above-mentioned nodular powder of 10-30%, the lubricant of 2-4%, the gelling agent of 5-15%, the alumina powder of 50-80% and the expanding agent of 1-3%, is mixed and stirred for taking out when being uniformly rolled to 2-8mm；It is placed in 100-200 DEG C of baking oven 3-5 hours dry；It is subsequently placed in roasting 2-6 hours in 400-800 DEG C of Muffle furnace.The present invention targets catalyst and handles, and specificity is strong, efficient, hardly degraded organic substance complete decomposition；The targeting specific surface area of catalyst of the present invention is larger, active higher, extremely strong to the capture and adsorption capacity of ozone molecule, and ozone utilization rate is much larger than traditional catalytic ozonation technique.
Description
Technical field
The wastewater processing technology of the present invention relates to a kind of characterized by hydrocarbon compound pollutant, more particularly to one
Preparation method of the kind for the targeting catalyst of this special water, it is intended to utilize targeting catalyst inducement ozone decomposed generation hydroxyl
Base free radical strengthens macromolecule hydrocarbon substance in removal waste water.
Background technology
Currently, with China's expanding economy, the quickening of Development of China's Urbanization, water pollution problems becomes more and more prominent.By
There is larger difference in the type and content for the Pollutants in Wastewater that raw material and the difference of production technology, different industries generate,
So that traditional biological treatment process has been difficult to meet the removal of Recalcitrant chemicals and departments of government in trade effluent
The sewage that requirement or even some industries for sewage effluent quality generate produces inhibiting effect to the technique.Therefore, advanced
The research of catalytic oxidation technologies is increasingly brought into schedule, and catalytic ozonation technology becomes the heat that numerous scholars study with plurality of advantages
One of point.
Catalytic ozonation technology is that inducing ozone decomposes generation with higher oxygen ability under the effect of the catalyst
Hydroxyl radical free radical, enhancing degradation high stability, refractory organics pollutant.Catalyst generally exists with solid-state, is easily separated from water.
Under the effect of the catalyst, ozone can generate more intermediate products (such as hydroxyl radical free radical OH) for having Strong oxdiative ability,
To achieve the purpose that improve ozone oxidation ability.However, with the continuous deepening of research, the technology is in process strengthening and is
There is the problem of some can not be ignored in system optimization operation etc., such as：(1) hardly degraded organic substance removal rate is low, especially long
The larger molecular organics of alkane, phenol, heterocyclic.(2) ozone utilization rate is not high.(3) different waste water catalyst are directed to
Specificity is not strong.The targeting catalyst specifically for characteristic contamination in different quality is not prepared in current research, i.e.,
The ripe measure of the catalytic ozonation technology reply different sewage of application easy to produce is not formed.
Therefore, it is the treatment effect for further strengthening hydrocarbonaceous type organic sewage, catalytic ozonation technique is carried out excellent
Change.Based on this, the targeting catalyst for the technique is produced.
Invention content
It is an object of the invention to design a kind of targeting method for preparing catalyst of novel processing hydrocarbon-containifirst waste water, solve
The above problem.
To achieve the goals above, the technical solution adopted by the present invention is as follows：
A kind of targeting method for preparing catalyst of processing hydrocarbon-containifirst waste water, including steps are as follows：
Step (1) dissolves active component salt in 40-80 DEG C of deionized water, and it is 5-15%'s to be prepared into mass concentration
Solution；Then ammonium salt, which is added, makes pH be increased between 6.5-7.5, initially forms precipitation in solution at this time, continues that solution is made to maintain
It 40-80 DEG C, is stirred 40-80 minutes with 60-100 revs/min of speed；The active component salt is mixed rare earth chlorides,
FeCl3、MnCl2、NiCl2、ZnCl2、CuCl2Or CoCl2One or more of；
The slurries obtained in step (1) are filtered, deionized water are used in combination to clean 3-5 times by step (2), until slurries can
Smoothly pass through filter；
Step (3), the slurries after cleaning obtain nodular powder in dry 3-6 hours in 100-110 DEG C of Muffle furnace, by it
It is placed in spare in drier；
Step (4) is by mass percentage the above-mentioned nodular powder of 10-30%, the glue of the lubricant of 2-4%, 5-15%
Solidifying agent, the alumina powder of 50-80% and 1-3% expanding agent, gross mass 100%；It is put into after being mixed and stirred for uniformly
It in comminutor, is taken out when being rolled to 2-8mm, obtained preformed catalyst；
It is small that the preformed catalyst that step (4) obtains is placed in 100-200 DEG C of baking oven dry 3-5 by step (5)
When；Roasting 2-6 hours in 400-800 DEG C of Muffle furnace are subsequently placed in, the targeting catalyst of processing hydrocarbon-containifirst waste water is obtained.
In step (1), the mixed rare earth chlorides are including La2O3Mass percent be 34.18%, CeO2's
Mass percent is 65.62%, Pr6O11And Nd2O3Mass content be respectively less than 0.01%.
Ammonium salt described in step (1) is ammonium carbonate or ammonium hydrogen carbonate.
In step (4), the lubricant is one kind in graphite or stearic acid；
The expanding agent is one kind in starch, sawdust, activated carbon or cellulose；
The gelling agent is dust technology or Aluminum sol.
In step (4), when the gelling agent is dust technology, when mixing the mass concentration of the gelling agent be 2-3%.
In step (1), in 60 DEG C of deionized water dissolve active component salt, be prepared into mass concentration be 10% it is molten
Liquid；Then ammonium salt, which is added, makes pH be increased to 7.2, initially forms precipitation in solution at this time, and it is 60 DEG C to keep the temperature of solution, stirring
60 minutes.
In step (3), cleans and filtered slurries obtain nodular powder in dry 4 hours in 105 DEG C of Muffle furnace.
In step (4), puts into comminutor, taken out when being rolled to 2-3mm, obtained molding is urged after being mixed and stirred for uniformly
Agent；
In step (5), the preformed catalyst is placed in 150 DEG C of baking oven 4 hours dry；It is subsequently placed in 600 DEG C of horse
Not roasting 4 hours in stove, obtain the targeting catalyst for handling the waste water containing aromatic compound.
Targeting catalytic oxidation technologies are that in the reactor, filling needle is passed through smelly the targeting catalyst of hydrocarbon-containifirst waste water
Oxygen generates strong oxidizer by targeting catalyst inducement ozone selfdecomposition, is carried out to hardly degraded organic substances such as hydro carbons in water thorough
The wastewater processing technology of oxygenolysis.
The purpose of the present invention is strengthen the wastewater treatment efficiency based on hydrocarbons pollutant.By preparing a kind of targeting catalysis
Agent, inducing ozone decompose the hydroxyl radical free radical for generating and having compared with Strong oxdiative ability, strengthen the degradation effect of macromolecule hydrocarbon substance.
The preparation of targeting catalyst specifically includes following steps：
(1) enough active component salt is dissolved in 40-80 DEG C of deionized water, it is 5-15%'s to be prepared into mass concentration
Solution；Then a certain amount of ammonium salt, which is added, makes pH be increased between 6.5-7.5, initially forms precipitation in solution at this time, continues to make
Solution maintains the temperature to be stirred 40-80 minutes with 60-100 revs/min of speed.
(2) slurries obtained in step (1) are filtered, deionized water is used in combination to clean 3-5 times, until slurries can be smoothly
Pass through filter.
(3) slurries after cleaning obtain nodular powder in dry 3-6 hours in 100-110 DEG C of Muffle furnace, place it in
Drying for standby in drier.
(4) by mass percentage be the above-mentioned nodular powder of 10-30%, the lubricant of 2-4%, 5-15% gelling agent,
The alumina powder of 50-80%, the expanding agent of 1-3%, gross mass 100%；Comminutor is put into after being mixed and stirred for uniformly
In, it is taken out when being rolled to 2-8mm, obtained preformed catalyst；
(5) preformed catalyst that step (4) obtains is placed in 100-200 DEG C of baking oven 3-5 hours dry；It is subsequently placed in
Roasting 2-6 hours, obtain ozone catalytic oxidation catalyst in 400-800 DEG C of Muffle furnace.
Beneficial effects of the present invention can be summarized as follows：
(1) it is handled using targeting catalyst, specificity is strong, efficient, hardly degraded organic substance complete decomposition；
(2) targeting specific surface area of catalyst of the invention is larger, active higher, the capture to ozone molecule and adsorption capacity
Extremely strong, ozone utilization rate is much larger than traditional catalytic ozonation technique.
(3) targeting catalyst contamination resistance of the invention is strong, and service life is long, is repeated after renewable after activity declines
It utilizes.
Specific implementation mode
In order to make the technical problems, technical solutions and beneficial effects solved by the present invention be more clearly understood, below in conjunction with
Embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only explaining this
Invention, is not intended to limit the present invention.
A kind of targeting method for preparing catalyst of processing hydrocarbon-containifirst waste water, including steps are as follows：
Step (1) dissolves active component salt in 40-80 DEG C of deionized water, and it is 5-15%'s to be prepared into mass concentration
Solution；Then ammonium salt, which is added, makes pH be increased between 6.5-7.5, initially forms precipitation in solution at this time, continues that solution is made to maintain
It 40-80 DEG C, is stirred 40-80 minutes with 60-100 revs/min of speed；The active component salt is mixed rare earth chlorides,
FeCl3、MnCl2、NiCl2、ZnCl2、CuCl2Or CoCl2One or more of；
The slurries obtained in step (1) are filtered, deionized water are used in combination to clean 3-5 times by step (2), until slurries can
Smoothly pass through filter；
Step (3), the slurries after cleaning obtain nodular powder in dry 3-6 hours in 100-110 DEG C of Muffle furnace, by it
It is placed in spare in drier；
Step (4) is by mass percentage the above-mentioned nodular powder of 10-30%, the glue of the lubricant of 2-4%, 5-15%
Solidifying agent, the alumina powder of 50-80% and 1-3% expanding agent, gross mass 100%；It is put into after being mixed and stirred for uniformly
It in comminutor, is taken out when being rolled to 2-8mm, obtained preformed catalyst；
It is small that the preformed catalyst that step (4) obtains is placed in 100-200 DEG C of baking oven dry 3-5 by step (5)
When；Roasting 2-6 hours in 400-800 DEG C of Muffle furnace are subsequently placed in, the targeting catalyst of processing hydrocarbon-containifirst waste water is obtained.
In more preferred embodiment, in step (1), the mixed rare earth chlorides are including La2O3Quality hundred
Divide than being 34.18%, CeO2Mass percent be 65.62%, Pr6O11And Nd2O3Mass content be respectively less than 0.01%.
In more preferred embodiment, the ammonium salt described in step (1) is ammonium carbonate or ammonium hydrogen carbonate.
In more preferred embodiment, in step (4), the lubricant is one kind in graphite or stearic acid；
The expanding agent is one kind in starch, sawdust, activated carbon or cellulose；
The gelling agent is dust technology or Aluminum sol.
In more preferred embodiment, in step (4), when the gelling agent is dust technology, the gelling of when mixing
The mass concentration of agent is 2-3%.
In more preferred embodiment, in step (1), active component salt is dissolved in 60 DEG C of deionized water, is prepared
The solution for being 10% at mass concentration；Then ammonium salt, which is added, makes pH be increased to 7.2, initially forms precipitation in solution at this time, keeps
The temperature of solution is 60 DEG C, is stirred 60 minutes.
In more preferred embodiment, it in step (3), cleans and filtered slurries is done in 105 DEG C of Muffle furnace
Obtain nodular powder within dry 4 hours.
In more preferred embodiment, it in step (4), is put into comminutor after being mixed and stirred for uniformly, is rolled to 2-
It is taken out when 3mm, obtained preformed catalyst；
In more preferred embodiment, in step (5), it is small that the preformed catalyst is placed in 150 DEG C of baking oven dry 4
When；Roasting 4 hours in 600 DEG C of Muffle furnace are subsequently placed in, the targeting catalyst for handling the waste water containing aromatic compound is obtained.
In more preferred embodiment, in step (3), the drier is glass desicator.
Case 1：
(1) enough mixed rare earth chlorides, iron chloride are dissolved in 40 DEG C of deionized water, being prepared into mass concentration is
5% solution；Then a certain amount of (NH is added4)2CO3So that pH is increased to 6.5, precipitation is initially formed in solution at this time, after continuation of insurance
The temperature for holding solution is 40 DEG C and is stirred 40 minutes with 60 revs/min of speed.
(2) slurries obtained in step (1) are filtered, deionized water is used in combination to clean 3 times, until slurries can smoothly lead to
Cross filter.
(3) slurries after cleaning obtain nodular powder in dry 3 hours in 100 DEG C of Muffle furnace, place it in drier
Middle drying for standby.
(4) it is by mass percentage 10% above-mentioned nodular powder, 2% graphite, 5% Aluminum sol, 80% oxidation
Aluminium powder, 3% starch, gross mass 100%；It puts into comminutor after being mixed and stirred for uniformly, is taken when being rolled to 2-3mm
Go out, obtained preformed catalyst；
(5) preformed catalyst that step (4) obtains is placed in 100 DEG C of baking oven 3 hours dry；It is subsequently placed in 400 DEG C
Muffle furnace in roasting 2 hours, obtain ozone catalytic oxidation catalyst.
The targeting catalyst of foregoing invention is cleaned 3-4 times with deionized water, is used for the advanced treating of hydrocarbonaceous waste water,
The removal rate 83.2% and chroma removal rate 100% of COD.
Case 2：
(1) enough mixed rare earth chlorides, manganese chloride are dissolved in 60 DEG C of deionized water, being prepared into mass concentration is
10% solution；Then a certain amount of (NH is added4)2CO3So that pH is increased to 7.2, initially form precipitation in solution at this time, continues
It keeps the temperature of solution for 60 DEG C and with 80 revs/min of speed, keeps the temperature of solution to be 60 DEG C and stir 60 minutes.
(2) slurries obtained in step (1) are filtered, deionized water is used in combination to clean 4 times, until slurries can smoothly lead to
Cross filter.
(3) slurries after cleaning obtain nodular powder in dry 4 hours in 105 DEG C of Muffle furnace, place it in drier
Middle drying for standby.
(4) it is by mass percentage 30% above-mentioned nodular powder, 4% graphite, 15% Aluminum sol, 50% oxidation
Aluminium powder, 1% starch, gross mass 100%；It puts into comminutor after being mixed and stirred for uniformly, is taken when being rolled to 2-3mm
Go out, obtained preformed catalyst；
(5) preformed catalyst that step (4) obtains is placed in 150 DEG C of baking oven 4 hours dry；It is subsequently placed in 600 DEG C
Muffle furnace in roasting 4 hours, obtain ozone catalytic oxidation catalyst.
The targeting catalyst of foregoing invention is cleaned 3-4 times with deionized water, is used for the advanced treating of hydrocarbonaceous waste water,
The removal rate 94.8% and chroma removal rate 100% of COD.
Case 3：
(1) enough mixed rare earth chlorides, nickel chloride are dissolved in 80 DEG C of deionized water, being prepared into mass concentration is
15% solution；Then a certain amount of (NH is added4)2CO3So that pH is increased to 7.5, initially form precipitation in solution at this time, continues
The temperature of solution is kept to be 80 DEG C and stirred 80 minutes with 100 revs/min of speed.
(2) slurries obtained in step (1) are filtered, deionized water is used in combination to clean 5 times, until slurries can smoothly lead to
Cross filter.
(3) slurries after cleaning obtain nodular powder in dry 6 hours in 110 DEG C of Muffle furnace, place it in drier
Middle drying for standby.
(4) it is by mass percentage 20% above-mentioned nodular powder, 3% graphite, 10% Aluminum sol, 65% oxidation
Aluminium powder, 2% starch, gross mass 100%；It puts into comminutor after being mixed and stirred for uniformly, is taken when being rolled to 2-8mm
Go out, obtained preformed catalyst；
(5) preformed catalyst that step (4) obtains is placed in 200 DEG C of baking oven 5 hours dry；It is subsequently placed in 800 DEG C
Muffle furnace in roasting 6 hours, obtain ozone catalytic oxidation catalyst.
The targeting catalyst of foregoing invention is cleaned 3-4 times with deionized water, is used for the advanced treating of hydrocarbonaceous waste water,
The removal rate 90.3% and chroma removal rate 100% of COD.
In conjunction with GC/MS means analysis hydrocarbon-containifirst waste water before and after the catalyst and ozone reaction Jing Guo above three case
The variation of its characteristic contamination type and content, such as following table.
The present invention is described in detail above by specific and preferred embodiment, but those skilled in the art should be bright
In vain, the invention is not limited in embodiment described above, all within the spirits and principles of the present invention, made by it is any modification,
Equivalent replacement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of targeting method for preparing catalyst of processing hydrocarbon-containifirst waste water, which is characterized in that including steps are as follows：
Step (1) dissolves active component salt in 40-80 DEG C of deionized water, is prepared into the solution that mass concentration is 5-15%；
Then ammonium salt, which is added, makes pH be increased between 6.5-7.5, initially forms precipitation in solution at this time, continues that solution is made to maintain 40-80
DEG C, it is stirred 40-80 minutes with 60-100 revs/min of speed；The active component salt is mixed rare earth chlorides, FeCl3、
MnCl2、NiCl2、ZnCl2、CuCl2Or CoCl2One or more of；
The slurries obtained in step (1) are filtered, deionized water are used in combination to clean 3-5 times by step (2), until slurries can be smooth
Pass through filter；
Step (3), the slurries after cleaning obtain nodular powder in dry 3-6 hours in 100-110 DEG C of Muffle furnace, place it in
It is spare in drier；
Step (4) is by mass percentage the above-mentioned nodular powder of 10-30%, the gelling agent of the lubricant of 2-4%, 5-15%,
The alumina powder of 50-80% and the expanding agent of 1-3%, gross mass 100%；Comminutor is put into after being mixed and stirred for uniformly
In, it is taken out when being rolled to 2-8mm, obtains preformed catalyst；
The preformed catalyst that step (4) obtains is placed in 100-200 DEG C of baking oven 3-5 hours dry by step (5)；So
Roasting 2-6 hours in 400-800 DEG C of Muffle furnace are placed on, the targeting catalyst of processing hydrocarbon-containifirst waste water is obtained；
In step (1), the mixed rare earth chlorides are in terms of oxide, including La2O3Mass percent be 34.18%,
CeO2Mass percent be 65.62%, Pr6O11And Nd2O3Mass content be respectively less than 0.01%；
Ammonium salt described in step (1) is ammonium carbonate or ammonium hydrogen carbonate；
In step (4), the lubricant is one kind in graphite or stearic acid；
The expanding agent is one kind in starch, sawdust, activated carbon or cellulose；
The gelling agent is dust technology or Aluminum sol；
In step (4), when the gelling agent is dust technology, when mixing the mass concentration of the gelling agent be 2-3%.
2. a kind of targeting method for preparing catalyst of processing hydrocarbon-containifirst waste water according to claim 1, it is characterised in that：Step
Suddenly in (1), active component salt is dissolved in 60 DEG C of deionized water, is prepared into the solution that mass concentration is 10%；Then it is added
Ammonium salt makes pH be increased to 7.2, initially forms precipitation in solution at this time, and it is 60 DEG C to keep the temperature of solution, is stirred 60 minutes.
3. a kind of targeting method for preparing catalyst of processing hydrocarbon-containifirst waste water according to claim 1, it is characterised in that：Step
Suddenly it in (3), cleans and filtered slurries obtains nodular powder in dry 4 hours in 105 DEG C of Muffle furnace.
4. a kind of targeting method for preparing catalyst of processing hydrocarbon-containifirst waste water according to claim 1, it is characterised in that：Step
Suddenly it in (4), is put into comminutor after being mixed and stirred for uniformly, is taken out when being rolled to 2-3mm, obtain preformed catalyst.
5. a kind of targeting method for preparing catalyst of processing hydrocarbon-containifirst waste water according to claim 1, it is characterised in that：Step
Suddenly in (5), the preformed catalyst is placed in 150 DEG C of baking oven 4 hours dry；It is subsequently placed in roasting 4 in 600 DEG C of Muffle furnace
Hour, obtain the targeting catalyst of processing hydrocarbon-containifirst waste water.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001104996A (en) * | 1999-10-07 | 2001-04-17 | Ishikawajima Harima Heavy Ind Co Ltd | Water treatment method and apparatus |
| CN104891713A (en) * | 2015-06-23 | 2015-09-09 | 杭州大地环保工程有限公司 | Catalytic ozonation process for treatment of organic wastewater |
| CN105268425A (en) * | 2014-07-17 | 2016-01-27 | 中国科学院大连化学物理研究所 | Modified active carbon catalyst, and preparation and application thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001104996A (en) * | 1999-10-07 | 2001-04-17 | Ishikawajima Harima Heavy Ind Co Ltd | Water treatment method and apparatus |
| CN105268425A (en) * | 2014-07-17 | 2016-01-27 | 中国科学院大连化学物理研究所 | Modified active carbon catalyst, and preparation and application thereof |
| CN104891713A (en) * | 2015-06-23 | 2015-09-09 | 杭州大地环保工程有限公司 | Catalytic ozonation process for treatment of organic wastewater |
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