CN109876811A - One type Fenton nanocatalyst and its preparation and application - Google Patents
One type Fenton nanocatalyst and its preparation and application Download PDFInfo
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Abstract
The invention discloses a type Fenton nanocatalyst and its preparations and application, and the catalyst is by Fe2O3It is formed with nanometer γ phase alumina, preparation method are as follows: using nanometer γ phase alumina as carrier, ferric iron compound is that active component is impregnated, dried, calcined.Hydrogen peroxide under the effect of the catalyst can catalysis oxidation removal regenerating drinking water in organic pollutant；It is added in regenerating drinking water, it is separated by solid-liquid separation after reaction, realize the processing to regenerating drinking water, organic pollutant application in removal regenerating drinking water provided by the invention, not only catalyst preparation process is simple and easy, it is at low cost, and processing method is simple, organic pollutant degradation efficiency height, cleanliness without any pollution, catalyst inactive component is precipitated, it can reach to the good treatment effect of regenerating drinking water, preferably meet current urgent need of some water-deficient areas for high-quality regenerating drinking water.
Description
Technical field
The present invention relates to drinking water advanced treatment fields, are a type Fenton nanocatalyst and its preparation and application.Especially
It is related to a kind of method using organic pollutant in class Fenton nanocatalyst catalysis oxidation removal regenerating drinking water.
Background technique
The drinking water of some arid areas in China or even the world extremely lacks, and is badly in need of developing new water source as drinking water
Supplement, and to domestic water progress advanced treating and as regenerating drinking water, at an effective way to solve this problem.Mesh
Before, it is based on the film process of ultrafiltration (ultrafiltration, i.e. UF), reverse osmosis process (reverse osmosis, i.e. RO) etc.
Method can remove most of harmful substance in domestic water, including drug and personal care articles, detergent and food add
Agent, but some micro quantity organic pollutants can not be effectively removed, such as dioxanes (Isosorbide-5-Nitrae-dioxane).However, existing numerous studies
It confirms, these micropollutants are present in drinking water, form potential threat to human health, or even bring carcinogenic risk.Therefore,
In order to provide the regenerating drinking water of safety to extreme dehydration area, exploitation more efficiently removes micro organic in regenerating drinking water
The method of pollutant is the task of top priority, this is for solving the problems, such as that China or even world arid area drink olighydria with important meaning
Justice.
Advanced oxidation processes (Advanced Oxidation Processes, i.e. AOPs) are the effective of progress water process at present
Method, wherein Fenton process has been used for the advanced treating of recycled water.This method is by adding ferrous ion into system for handling
(Fe2+), catalyzing hydrogen peroxide (H2O2), generate hydroxyl radical free radical (HO·) attack organic pollutant make its degradation.Conventional homogeneous is fragrant
In catalyst system of pausing, the active component (ferrous ion) for playing catalytic action easily gradually disappears with treatment progress due to not being fixed
Consumption；Heterogeneous Fenton-like is by being fixed on carrier for active component to solve the problems, such as this.However, existing at present non-equal
The generating rate of the hydroxyl radical free radical of phase Fenton-like is lower, and the binding force between carrier and active component is lower, reaction
Rear catalyst active component is lost because of leaching, causes treatment effeciency limited.Meanwhile the catalyst activity component of leaching can also endanger
Victimization body is healthy and safe, thus is not suitable as regenerating drinking water processing method.Therefore, a kind of catalyst preparation process letter is developed
Easily, active component load is secured, and processing operation is simple and easy, and treatment effeciency is high, the removal regenerating drinking water of short processing time
The class Fenton catalysis treatment method of middle organic pollutant is to overcome the deficiencies of the prior art that one of this field is urgently to be resolved
Problem.
Summary of the invention
In order to solve the above-mentioned technical problem overcome the deficiencies in the prior art, the present invention provides a type Fenton nano-catalytics
Agent and its preparation and application, preparation process is simple, active component load is secured and processing operation is simple and easy, treatment effeciency
Height, short processing time；It is organic pollutant in a kind of novel class Fenton nanocatalyst catalysis oxidation removal regenerating drinking water
Method.
International Health Organization (WHO) defines regenerating drinking water are as follows: with processed used water (recycled water) for water source
Drinking water.
In order to reach the object of the invention, the present invention provides a type Fenton nanocatalysts, wherein the class Fenton is received
Rice catalyst is using nanometer γ phase alumina as carrier；With Fe2O3For active component；The partial size of the nanometer γ phase alumina is less than
Or it is equal to 20nm.
In class Fenton nanocatalyst provided by the invention, the catalyst activity component load capacity is 0.2wt.%-
2.2wt.%.
In class Fenton nanocatalyst provided by the invention, the partial size of class Fenton nanocatalyst is 5-30nm.
In class Fenton nanocatalyst provided by the invention, class Fenton nanocatalyst provided by the invention, under
Column step is made: 1) preparing the solution of ferric iron compound；2) γ for being added drop-wise to the ferric iron compound solution in step 1)
Phase nano aluminium oxide is impregnated, and the aqueous γ phase nano aluminium oxide that load has ferric iron compound is obtained；It 3) will be in step 2)
Obtained γ phase nano aluminium oxide is dried, and the drying γ phase nano aluminium oxide that load has ferric iron compound is obtained；4) will
Dry nano aluminium oxide obtained in step 3) is calcined, and γ phase alumina load Fe is obtained2O3Nanometer class Fenton catalysis
Agent.
On the other hand, the present invention also provides the preparation methods of the class Fenton nanocatalyst, including the following steps:
1) aqueous solution of ferric iron compound is prepared；
2) the γ phase nano aluminium oxide that the iron compound solution in step 1) is added drop-wise to is impregnated, obtaining load has iron
The aqueous γ phase nano aluminium oxide of compound；
3) aqueous γ phase nano aluminium oxide obtained in step 2) is dried, obtains the drying that load has iron compound
γ phase nano aluminium oxide；
4) dry γ phase nano aluminium oxide obtained in step 3) is calcined, obtains γ phase alumina load Fe2O3's
Nanometer class fenton catalyst.
In the preparation method of class Fenton nanocatalyst provided by the invention, the ferric iron compound in step 1) is selected from
One of ferric nitrate, ferric sulfate and iron chloride are a variety of.
In the preparation method of class Fenton nanocatalyst provided by the invention, the step 2) drying temperature be 60 DEG C-
70 DEG C, drying time 6h-8h；Calcination temperature described in step 3) is 250 DEG C -300 DEG C, calcination time 6h-8h.
In the preparation method of class Fenton nanocatalyst provided by the invention, ferric iron compound and γ phase are nano oxidized
The mass ratio of aluminium is 1:99-10:90.
On the other hand, answering the present invention also provides the class Fenton nanocatalyst catalysis oxidation organic pollutants
With, wherein it using hydrogen peroxide as oxidant, is separated by solid-liquid separation after catalysis oxidation, obtains the water for removing removal organic polluter；
Class Fenton nanocatalyst provided by the invention non-iron-ion after being catalyzed organic pollutant is precipitated.
In the application of class Fenton nanocatalyst catalysis oxidation organic pollutants provided by the invention, the class Fenton
The dosage of nanocatalyst is 0.1g/L-0.5g/L；The dosage of the hydrogen peroxide is 0.05g/L-0.5g/L.
In the application of class Fenton nanocatalyst catalysis oxidation organic pollutants provided by the invention, the water is again
Raw drinking water.
In the application of class Fenton nanocatalyst catalysis oxidation organic pollutants provided by the invention, in the water
The initial concentration of TOC is 10mg/L-100mg/L；
In the application of class Fenton nanocatalyst catalysis oxidation organic pollutants provided by the invention, the catalysis oxygen
Change reaction to carry out under stiring, the reaction temperature is 25 DEG C -45 DEG C；Speed of agitator is 150rpm-200rpm.
Compared with prior art, the present invention having the beneficial effect that
The prior art is using common gamma-alumina as carrier (partial size 10-40 mesh=425-2000nm), and the present invention is to receive
Meter level gamma-alumina (partial size≤20nm) is used as carrier, has essential distinction on carrier scale.Due to the spy of nanoscale gamma-alumina
Different property, adsorption capacity is extremely strong, enables to non-iron-ion in application process to be precipitated, economy is significant, due to above-mentioned property (nothing
Active component dissolution, and economical), especially suitable for the processing of regenerating drinking water, do not cause recycled water by Iron pick up institute
Caused secondary pollution.
The present invention provides organic pollutants in type Fenton nanocatalyst catalysis oxidation removal regenerating drinking water
Method prepares novel class Fenton nanocatalyst, active component is in supported on carriers jail using nanometer γ phase alumina as carrier
Gu non-iron-ion is precipitated after processing, therefore can ensure regenerating drinking water safety.Simultaneously as inactive component is precipitated, catalyst
It can efficiently be reused, there is significant environment and economic benefit.
The method of organic pollutant in the class Fenton nanocatalyst catalysis oxidation removal regenerating drinking water that the present invention develops,
Realize that hydrogen peroxide more efficiently utilizes using prepared novel class Fenton nanocatalyst, oxidant consumption is low, reacts item
Part is mild, and processing operation is simple, and treatment effeciency is high, and processing is time-consuming short.
The present invention develops novel class Fenton nanocatalyst, by easy steps such as dipping, drying, calcinings by active group
Divide and is fixed on commercially available nanometer γ phase alumina carrier.Activator raw material is easily obtained, is cheap, and preparation process is simply easy
Row, has a vast market foreground.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is the surface microstructure in embodiment 1 under Zeiss (ZEISS) scanning electron microscope of class Fenton nanocatalyst
Figure.
Fig. 2 is dioxanes removal rate statistical chart corresponding to the recycling number of class Fenton nanocatalyst in embodiment 1.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
In embodiments of the present invention, the present invention provides a type Fenton nanocatalysts, wherein the class Fenton nanometer
Catalyst is using nanometer γ phase alumina as carrier；With Fe2O3For active component；The partial size of the nanometer γ phase alumina be less than or
Equal to 20nm.
In embodiments of the present invention, the catalyst activity component load capacity is 0.2wt.%-2.2wt.%.
In embodiments of the present invention, the partial size of class Fenton nanocatalyst is 5-30nm.
In embodiments of the present invention, class Fenton nanocatalyst provided by the invention, is made through the following steps: 1) preparing
The solution of ferric iron compound；2) the γ phase nano aluminium oxide that the ferric iron compound solution in step 1) is added drop-wise to is soaked
Stain obtains the aqueous γ phase nano aluminium oxide that load has ferric iron compound；3) γ phase obtained in step 2) is nano oxidized
Aluminium is dried, and the drying γ phase nano aluminium oxide that load has ferric iron compound is obtained；It 4) will be dry obtained in step 3)
Nano aluminium oxide calcined, obtain γ phase alumina load Fe2O3Nanometer class fenton catalyst.
Material employed in following embodiment is commercially available with instrument.
Embodiment 1:
Prepare class Fenton nanocatalyst, be using commercially available partial size for 20nm nanometer γ phase alumina as carrier, with Fe2O3
For active component.
The preparation of the class Fenton nanocatalyst of the present embodiment, comprising the following steps:
(1) by Fe (NO3)3·9H2O carries out dispersion with deionized water and the solution that concentration is 80g/L is made；
(2) solution that will be prepared in step (1), according to Fe (NO3)3·9H2O: nanometer γ phase alumina=8:92
Mass ratio dropwise and is homogeneously added into nanometer γ phase alumina and is impregnated, and obtains aqueous nanometer γ phase alumina load Fe
(NO3)3Catalyst；
(3) catalyst through impregnating in step (2) is placed in drying box, carries out drying 8h at a temperature of 60 DEG C, obtains
Dry γ phase alumina loads Fe (NO3)3Nanocatalyst；
(4) catalyst of drying in step (3) is placed in Muffle furnace, carries out calcining 8h at a temperature of 280 DEG C, obtains
γ phase alumina loads Fe2O3Nanometer class fenton catalyst.
As shown in Figure 1, in the present embodiment class Fenton nanocatalyst partial size about 25nm.
The classes of compounds and its matter that the class Fenton nanocatalyst of table 1:X fluorescent x ray spectroscopy x the present embodiment contains
Measure percentage
| Compound | Mass percent (%) | Standard deviation |
| Al2O3 | 97.92 | 0.07 |
| Fe2O3 | 1.64 | 0.06 |
| Other | 0.44 | - |
Other substances herein are inevitable impurity, including the impurity that may be added in 1. preparation process, 2.X ray
Other substances that may be added during spectrofluorimetry.
As shown in Table 1, active component Fe2O3It is carried in nanometer γ phase alumina well.
Embodiment 2
Embodiment 2 the difference from embodiment 1 is that, in the preparation process of class Fenton nanocatalyst, the calcining of step (4)
Temperature is 250 DEG C.Each component and its dosage and remaining preparation process are same as Example 1.
Embodiment 3
Embodiment 3 the difference from embodiment 1 is that, in the preparation process of class Fenton nanocatalyst, the calcining of step (4)
Temperature is 275 DEG C.Each component and its dosage and remaining preparation process are same as Example 1.
Embodiment 4
Embodiment 4 the difference from embodiment 1 is that, in the preparation process of class Fenton nanocatalyst, the calcining of step (4)
Temperature is 300 DEG C.Each component and its dosage and remaining preparation process are same as Example 1.
Embodiment 5
Embodiment 5 the difference from embodiment 1 is that, in the preparation process of class Fenton nanocatalyst, the calcining of step (4)
Time is 6h.Each component and its dosage and remaining preparation process are same as Example 1.
Embodiment 6
Embodiment 6 the difference from embodiment 1 is that, in the preparation process of class Fenton nanocatalyst, the calcining of step (4)
Time is 7h.Each component and its dosage and remaining preparation process are same as Example 1.
Embodiment 7
Embodiment 7 the difference from embodiment 1 is that, the load capacity of class Fenton nanocatalyst is 0.2wt.% preparation process
It is same as Example 1.
Embodiment 8
Embodiment 8 the difference from embodiment 1 is that, the load capacity of class Fenton nanocatalyst is 2.2wt.% preparation process
It is same as Example 1.
Comparative example 1
Comparative example the difference from embodiment 1 is that, the load capacity of class Fenton nanocatalyst is 4.58wt.% preparation process
It is same as Example 1.
Comparative example 2
Comparative example 2 the difference from embodiment 1 is that, class Fenton nanocatalyst is 100 μm of gamma-alumina using partial size,
Preparation process is same as Example 1.
Test example 1:
Use organic contamination in the class Fenton nanocatalyst catalysis oxidation removal regenerating drinking water prepared in embodiment 1
Object is comprised the following steps that using organic pollutant dioxanes common in recycled water as model pollutant
(1) the class Fenton nanometer of 0.1g/L, 0.3g/L and 0.5g/L are added into the dioxanes aqueous solution that TOC is 20mg/L
Catalyst；
(2) hydrogen peroxide that 0.1g/L, 0.3g/L and 0.5g/L is added starts to react, and with magnetic agitation, speed of agitator is
150rpm, reaction temperature are 40 DEG C, and the processing time is 2h；
(3) centrifugal solid-liquid separation is carried out after handling, and supernatant is taken to be detected.
Table 2: removal rate shadow of the inhomogeneity Fenton nanocatalyst dosage to organic pollutants dioxanes in embodiment 1
It rings (%), wherein hydrogen peroxide use is 0.1g/L.
| Time (min) | 0 | 5 | 15 | 30 | 60 | 90 | 120 |
| 0.1g/L | 0 | 21.2 | 45.3 | 70.3 | 87.9 | 99.2 | 100 |
| 0.3g/L | 0 | 23.6 | 48.8 | 75.8 | 95.3 | 100 | 100 |
| 0.5g/L | 0 | 25.1 | 48.6 | 78.9 | 98.7 | 100 | 100 |
As shown in Table 2, during class Fenton nanocatalyst catalyzing oxidizing degrading, the removal rate of dioxanes is at any time
Increase and increase, and increases catalyst amount (0.1g/L-0.5g/L) dioxanes removal rate can be increased to a certain extent.?
Removal rate can reach 100% when 120min.
Table 3: different hydrogen peroxide uses influence (%) to the removal rate of organic pollutants dioxanes in embodiment 1,
Wherein class Fenton nanocatalyst dosage is 0.3g/L.
| Time (min) | 0 | 5 | 15 | 30 | 60 | 90 | 120 |
| 0.1g/L | 0 | 23.6 | 48.8 | 75.8 | 95.3 | 100 | 100 |
| 0.3g/L | 0 | 30.5 | 60.2 | 91.1 | 100 | 100 | 100 |
| 0.5g/L | 0 | 36.8 | 69.9 | 95.7 | 100 | 100 | 100 |
As shown in Table 3, during class Fenton nanocatalyst catalyzing oxidizing degrading, increase hydrogen peroxide use (0.1g/
L-0.5g/L dioxanes removal rate) can be increased to a certain extent.In 90min, removal rate can reach 100%.
It in the present embodiment, is detected after processing through PE-Optima8000 inductively-coupled plasma spectrometer, iron member in solution
Cellulose content is 0mg/L.
In the present embodiment, if ferric sulfate and iron chloride is used to prepare catalyst (preparation process as active component predecessor
It is same as Example 1), dioxanes removal experiment is carried out, removal process uses the hydrogen peroxide of 0.1g/L, the catalysis of 0.3g/L
Agent, processing time are 2h, then dioxanes removal rate can reach 100%.Wherein, using ferric sulfate and iron chloride as active component
It is identical using the ratio of ferric nitrate as active component predecessor in predecessor prepared catalyst active component and embodiment 1.Knot
Fruit shows that ferric sulfate and iron chloride are also used to prepare class Fenton nanocatalyst of the invention.
Test example 2:
The effect of removal organic polluter is gone after the recycling of class Fenton nanocatalyst.Steps are as follows:
It is oxidation with 0.1g/L hydrogen peroxide using 0.3g/L class Fenton nanocatalyst made from embodiment 1 as catalyst
Agent at a temperature of 40 DEG C, carries out the removal experiment of 20mg/L dioxane, magnetic agitation according to experimental procedure in embodiment 2
Revolving speed is 150rpm, reaction time 2h.
Centrifugal solid-liquid separation is carried out after processing, supernatant is discharged and is detected；It is clear to separate rear catalyst deionized water
It washes, dry, can be utilized again.
0.1g/L hydrogen peroxide is added into catalyst, and carries out the removal experiment of 20mg/L dioxane again,
Reaction condition is identical as preceding step, carries out the detection of supernatant and the recycling of catalyst.
Fig. 2 shows that class Fenton nanocatalyst of the invention can be reused effectively.After 7 times, dioxanes is gone
Except rate still keeps again 97% or more.
Embodiment 4:
Use common organic dirt in the class Fenton nanocatalyst catalysis oxidation removal regenerating drinking water prepared in embodiment 1
Contaminate the removal effect of object N- N-nitrosodimethylamine.
(1) the class Fenton nanocatalyst of 0.3g/L is added into the N- dimethyl nitrite amine aqueous solution that TOC is 20mg/L
(2) hydrogen peroxide that 0.1g/L is added starts to react, with magnetic agitation, speed of agitator 150rpm, reaction temperature
It is 40 DEG C, the processing time is 3h；
(3) centrifugal solid-liquid separation is carried out after handling, and supernatant is taken to be detected.
Table 4: class Fenton nanocatalyst of the invention is to organic pollutants N- N-nitrosodimethylamine in embodiment 4
Removal rate (%).
As shown in Table 4, class Fenton nanocatalyst catalytic oxidation system of the invention can effectively remove N- dimethyl nitrite
Amine, in 180min, removal rate can reach 100%.
Test example 3:
Comparison different catalysts preparation condition (including calcination temperature, calcination time, activity component load quantity and different-grain diameter
Carrier) influence that is precipitated of para-dioxane treatment effect and active component.
Comparative experiments controls experimental method using single factor test, and the primary condition of catalyst preparation changes according to shown in embodiment 1
Become wherein single preparation condition and test simultaneously contrast and experiment.Dioxanes treatment process uses the hydrogen peroxide of 0.1g/L,
The catalyst of 0.3g/L, processing time are 2h, other reaction conditions are same as Example 2.
Table 5: different catalysts preparation condition dioxanes treatment effect statistical form
| Embodiment | Dioxanes removal rate (%) |
| Embodiment 1 | 100 |
| Embodiment 2 | 91.3 |
| Embodiment 3 | 100 |
| Embodiment 4 | 100 |
| Embodiment 5 | 96.6 |
| Embodiment 6 | 98.5 |
Table 6: the influence statistical form of activity component load quantity and diameter of carrier and active component precipitation
| Embodiment and comparative example | Iron concentration (mg/L) in solution after reaction |
| Embodiment 7 | 0.0 |
| Embodiment 8 | 0.0 |
| Comparative example 1 | 0.26 |
| Comparative example 2 | 0.37 |
Table 5 and table 6 show that catalyst calcination temperature of the invention is at 250-300 DEG C, and calcination time is in 6-8h, dioxanes
Removal rate can be 90% or more；Fe ion concentration is activity component load quantity in solution after 0.2-2.2wt.%, reaction
0mg/L.Meanwhile increasing activity component load quantity or using big partial size γ phase alumina carrier, there is obvious loss of active component existing
As not being suitable for regenerating drinking water processing.
In conclusion organic pollutant in class Fenton nanocatalyst catalysis oxidation removal regenerating drinking water of the invention
Method, using hydrogen peroxide as oxidant, is added in regenerating drinking water using class Fenton nanocatalyst as catalyst, reaction
After be separated by solid-liquid separation, realize that oxidant consumption is low, reaction condition temperature to the efficient process of organic pollutant in regenerating drinking water
With processing operation is simple, and treatment effeciency is high, and processing is time-consuming short.Wherein, class Fenton nanocatalyst preparation process letter of the invention
Single, active component is secured in supported on carriers, and non-iron-ion is precipitated after processing, and activator raw material is easily obtained, is cheap,
It is a kind of catalyst that can be widely used, regenerating drinking water can be effectively treated, regenerating drinking water processing method of the invention
The urgent need of current China or even world water-deficient area for high-quality regenerating drinking water can preferably be met.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form.Though
So the present invention is disclosed as above with preferred embodiment, and however, it is not intended to limit the invention.It is any to be familiar with those skilled in the art
Member, in the case where not departing from Spirit Essence of the invention and technical solution, all using in the methods and techniques of the disclosure above
Appearance makes many possible changes and modifications or equivalent example modified to equivalent change to technical solution of the present invention.Therefore,
Anything that does not depart from the technical scheme of the invention are made to the above embodiment any simple according to the technical essence of the invention
Modification, equivalent replacement, equivalence changes and modification, all of which are still within the scope of protection of the technical scheme of the invention.
Claims (11)
1. a type Fenton nanocatalyst, wherein the class Fenton nanocatalyst is using nanometer γ phase alumina as carrier；With
Fe2O3For active component；The partial size of the nanometer γ phase alumina is less than or equal to 20nm.
2. class Fenton nanocatalyst according to claim 1, wherein the catalyst activity component load capacity is
0.2wt.%-2.2wt.%.
3. class Fenton nanocatalyst according to claim 1 or 2, wherein the partial size of class Fenton nanocatalyst is 5-
30nm。
4. the preparation method of class Fenton nanocatalyst described in a kind of any one of claims 1 to 3, including the following steps:
1) aqueous solution of ferric iron compound is prepared；
2) the γ phase nano aluminium oxide that the aqueous solution of the ferric iron iron compound in step 1) is added drop-wise to is impregnated, is born
It is loaded with the aqueous γ phase nano aluminium oxide of ferric iron compound；
3) aqueous γ phase nano aluminium oxide obtained in step 2) is dried, obtains the drying that load has ferric iron compound
γ phase nano aluminium oxide；
4) dry γ phase nano aluminium oxide obtained in step 3) is calcined, obtains γ phase alumina load Fe2O3Nanometer
Class fenton catalyst.
5. the preparation method of class Fenton nanocatalyst according to claim 4, wherein the ferric iron chemical combination in step 1)
Object is selected from one of ferric nitrate, ferric sulfate and iron chloride or a variety of.
6. the preparation method of class Fenton nanocatalyst according to claim 4 or 5, wherein step 2) the dry temperature
Degree is 60 DEG C -70 DEG C, drying time 6h-8h；Calcination temperature described in step 3) is 250 DEG C -300 DEG C, calcination time 6h-
8h。
7. the preparation method of class Fenton nanocatalyst according to claim 4 or 5, wherein the ferric iron compound
Mass ratio with γ phase nano aluminium oxide is 1:99-10:90.
8. class Fenton nanocatalyst catalysis oxidation organic pollutants answers described in a kind of any one of claims 1 to 3
With, wherein it using hydrogen peroxide as oxidant, is separated by solid-liquid separation after catalysis oxidation, obtains the water for removing removal organic polluter；
Catalyst non-iron-ion after being catalyzed organic pollutant is precipitated.
9. the application of class Fenton nanocatalyst catalysis oxidation organic pollutants according to claim 8, wherein described
The dosage of class Fenton nanocatalyst is 0.1g/L-0.5g/L；The dosage of the hydrogen peroxide is 0.05g/L-0.5g/L.
10. the application of class Fenton nanocatalyst catalysis oxidation organic pollutants according to claim 8 or claim 9, wherein
The water is regenerating drinking water.
11. the application of class Fenton nanocatalyst catalysis oxidation organic pollutants according to claim 8 or claim 9, wherein
The initial concentration of TOC is 10mg/L-100mg/L in the water；
The catalytic oxidation carries out under stiring, and the reaction temperature is 25 DEG C -45 DEG C；Speed of agitator is 150rpm-
200rpm。
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| CN111229225A (en) * | 2020-03-25 | 2020-06-05 | 杭州英普环境技术股份有限公司 | Iron composite catalyst for ozone catalytic oxidation and preparation method thereof |
| CN112138662A (en) * | 2020-09-22 | 2020-12-29 | 广东石油化工学院 | Ferric oxide-loaded alumina composite material and application thereof |
| CN113600205A (en) * | 2021-08-04 | 2021-11-05 | 王晶晶 | Copper-based Cu-Al2O3Catalyst and application thereof in treatment of estrogen-containing wastewater |
| WO2024021290A1 (en) * | 2022-07-28 | 2024-02-01 | 广东邦普循环科技有限公司 | Waste lithium battery leachate treatment method and waste lithium battery recovery method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103041818A (en) * | 2011-10-17 | 2013-04-17 | 中国石油化工股份有限公司 | Preparation method of catalytic wet oxidation catalyst and treatment method of organic wastewater |
| CN105692864A (en) * | 2014-11-27 | 2016-06-22 | 中国海洋石油总公司 | Method for processing wastewater |
-
2019
- 2019-04-01 CN CN201910257915.3A patent/CN109876811B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103041818A (en) * | 2011-10-17 | 2013-04-17 | 中国石油化工股份有限公司 | Preparation method of catalytic wet oxidation catalyst and treatment method of organic wastewater |
| CN105692864A (en) * | 2014-11-27 | 2016-06-22 | 中国海洋石油总公司 | Method for processing wastewater |
Non-Patent Citations (2)
| Title |
|---|
| FELIX GALINDO-HERN_ANDEZ: "Structural and textural properties of Fe2O3/g-Al2O3 catalysts and their importance in the catalytic reforming of CH4 with H2S for hydrogen production", 《JOURNAL OF POWER SOURCES》 * |
| XIYAN XU: "Cyclohexanoic acid breakdown by two-step persulfate and heterogeneous Fenton-like oxidation", 《APPLIED CATALYSIS B: ENVIRONMENTAL》 * |
Cited By (5)
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| CN111229225A (en) * | 2020-03-25 | 2020-06-05 | 杭州英普环境技术股份有限公司 | Iron composite catalyst for ozone catalytic oxidation and preparation method thereof |
| CN112138662A (en) * | 2020-09-22 | 2020-12-29 | 广东石油化工学院 | Ferric oxide-loaded alumina composite material and application thereof |
| CN113600205A (en) * | 2021-08-04 | 2021-11-05 | 王晶晶 | Copper-based Cu-Al2O3Catalyst and application thereof in treatment of estrogen-containing wastewater |
| CN113600205B (en) * | 2021-08-04 | 2023-12-08 | 王晶晶 | Copper-based Cu-Al 2 O 3 Catalyst and application thereof in treatment of estrogen-containing wastewater |
| WO2024021290A1 (en) * | 2022-07-28 | 2024-02-01 | 广东邦普循环科技有限公司 | Waste lithium battery leachate treatment method and waste lithium battery recovery method |
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