CN107459124A - COD method and device in a kind of hydrogen peroxide heterocatalysis oxidized waste water - Google Patents
COD method and device in a kind of hydrogen peroxide heterocatalysis oxidized waste water Download PDFInfo
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- CN107459124A CN107459124A CN201710785951.8A CN201710785951A CN107459124A CN 107459124 A CN107459124 A CN 107459124A CN 201710785951 A CN201710785951 A CN 201710785951A CN 107459124 A CN107459124 A CN 107459124A
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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
-
- 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
- B01J23/84—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 arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
-
- 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
- C02F1/722—Oxidation by peroxides
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Materials Engineering (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The present invention relates to the method and device of COD in hydrogen peroxide heterocatalysis oxidized waste water a kind of.Decomposing hydrogen dioxide solution is the stronger hydroxyl radical free radical of oxidisability using solid catalyst by this method, and then with the organic matter in waste water oxidation reaction occurs for hydroxyl radical free radical, and organic matter is converted into carbon dioxide and water, so as to reach the purpose for reducing COD in waste water.In this method, hydrogen peroxide and COD in waste water mass ratio are 0.5~1:1, the flow-rate ratio of solid catalyst quality and hydrogen peroxide is 1:100~300.The catalysis oxidizing tower for realizing this method is devised, the tower top is waste water and dioxygen tank, and middle part is catalyst area, and bottom is water distribution area.It is an advantage of the invention that solving the dosage that the reuse problem of dioxygen water liquid fenton catalyst, sludge yield are big, reduce hydrogen peroxide, device is ingenious in design rationally, can generally reduce investment outlay, improve COD clearances.
Description
Technical field
The invention belongs to field of waste water treatment, it is related to the method and dress of COD in a kind of hydrogen peroxide heterocatalysis oxidized waste water
Put, and in particular to utilize the method and device that catalysis of solid catalyst decomposing hydrogen dioxide solution is COD in hydroxyl radical free radical processing waste water.
Background technology
Substantial amounts of industrial wastewater and town sewage are generated in the production of the mankind and life process, is contained in these waste water
Substantial amounts of benzene homologues, organic nitrile and phenols.The pollutant belongs to the contamination index that country strictly controls, conventional removal side
Method has Bubble-floating Method, the precipitation method, absorption method, filtration method and bioanalysis.These methods are limited to COD removal ability, it is impossible to enter
Row advanced treating.There has been proposed oxidizing process, the oxidant of this method later two classes, and one kind is ozone, and ozone has strong oxygen
The property changed, generates oxygen after reduction, it is environmentally safe the advantages of, but have that utilization rate is low, operating cost is high and to organic
The selective shortcoming of thing.The another kind of oxidant of oxidizing process is hydrogen peroxide, and Fenton reagent is utilized during use（Mainly
Fe2+）It is hydroxyl radical free radical by decomposing hydrogen dioxide solution, then hydroxyl radical free radical reoxidizes the organic matter in waste water, and reaching reduces COD's
Purpose.
CN105858950 proposes the method and device of ozone, hydrogen peroxide and activated carbon to dyeing waste water advanced treating, should
Method adds, with reference to hydrogen peroxide, the activated carbon of supported catalyst to ozone segmentation, has that catalytic activity is good, ozone utilization rate is high
The advantages of, but cause operating cost high using ozone, and water outlet COD<60 mg/L, not up to town sewage pollutant are arranged
Put one-level A standards.
CN101041475 reports Fenton and air-float integral water treating method, and this method is first to waste water Fenton reagent
Oxidizing, flocculating processing is carried out, then pH is adjusted with alkaline matter, finally uses liquid Fenton reagent with air-flotation process, this method,
Although solving the problems, such as iron hydroxide flocculate, also there is that liquid catalyst reuse is difficult, sludge yield is big lacks
Point.
CN200910113967.X reports the method for handling waste water using Fenton reagent in up flow type multi-phase oxidation column,
Hydrogen peroxide and Fe in this method2+Mol ratio be 5~20:1, the mass ratio of the COD in hydrogen peroxide usage amount and pending waste water
For 2~3:1, the reaction time is 0.5~1 hour.This method also exists in addition to it the problem of liquid catalyst reuse difficulty be present
The problem of hydrogen peroxide usage amount is big.
The content of the invention
The purpose of the present invention is：It is stranded to solve the liquid Fenton reagent reuse present in hydrogen peroxide oxidation waste water COD
Difficulty, and the problem of dioxygen water consumption is big, it is proposed that one kind is used in catalysis of solid catalyst hydrogen peroxide oxidation processing waste water
COD, and can largely reduce the method and realization device of dioxygen water consumption.
In order to solve the above-mentioned technical problem, the present invention is achieved through the following technical solutions：
COD device in a kind of hydrogen peroxide heterocatalysis oxidized waste water, specially a kind of wastewater oxidation tower, including on tower body
The hydrogen peroxide storage tank and waste water storage tank in portion, the water-locator of solid catalyst layer and tower body bottom in the middle part of tower body；
The wastewater trough connects wastewater inlet pipe, and the dioxygen tank connects hydrogen peroxide water inlet pipe；
The wastewater trough is connected with the waste water inlet of wastewater oxidation tower bottom, and on connecting pipeline be provided with waste water draining valve and
Waste water delivery pump；
The dioxygen tank is connected with the dioxygen water inlet of wastewater oxidation tower bottom, and is provided with hydrogen peroxide on connecting pipeline and arranges
Water valve and hydrogen peroxide delivery pump；
The top of the solid catalyst layer is connected provided with overfall with tank.
Further, the solid catalyst layer is fixed bed solid catalyst layer or fluid bed solids catalyst layer.
COD method, step include in a kind of hydrogen peroxide heterocatalysis oxidized waste water：
（1）Waste water and hydrogen peroxide are each led into the hydrogen peroxide storage tank and waste water storage tank on wastewater oxidation tower top, then will be double
Liquid in oxygen water storage tank and waste water storage tank is pumped to the entrance of tower body bottom water-locator respectively；
（2）Waste water and hydrogen peroxide after water-locator is distributed form uniform mixed liquor, then flow through fixed bed or fluid bed form
Solid catalyst layer, wherein, solid catalyst is copper-manganese aluminium Si composite oxide, and hydrogen peroxide is decomposed into hydroxyl in catalyst surface
COD in waste water is oxidized to carbon dioxide and water by base free radical, hydroxyl radical free radical, it is oxidation-treated after waste water urged from solid
The overfall water outlet on agent layer top, into tank.
Further, step（1）In, be pumped to the liquid of water-locator porch, in hydrogen peroxide hydrogen peroxide with waste water
COD mass ratio is 0.5~1:1.
Further, step（1）In, hydrogen peroxide mass concentration is not construed as limiting in hydrogen peroxide, and preferably 27.5%.
Further, step（2）In, described copper-manganese aluminium Si composite oxide, active component CuMnOx, carrier is
AlSiOx, wherein 2<x<4；
Preferably, described copper-manganese aluminium Si composite oxide, preparation method are：
1）It is adhesive by γ-Al using silica gel2O35~10mm of diameter bead is made, is dried at 70~120 DEG C, then 500 DEG C
1h is calcined, obtains carrier；
2）Using mantoquita and manganese salt as the precursor of active component, it is dissolved in deionized water, obtains maceration extract, wherein, copper and manganese
Mol ratio is 1:1, the weight/mass percentage composition of copper is 15%；
Preferably, mantoquita is copper nitrate or copper acetate, and manganese salt is manganese nitrate or manganese acetate.
3）Carrier is transferred in maceration extract, using impregnation active component, impregnates 1~4h, dipping complete after
70~120 DEG C of drying, are then calcined 6h at 500 DEG C, obtain copper-manganese aluminium Si composite oxide.
Further, step（2）In, the residence time that waste water flows through catalyst layer is 15~60 min；
Further, step（2）In, in tower body, the mass ratio of solid catalyst and mixed liquor is 1:100~500.
Catalyst activity component of the present invention is copper-manganese aluminium silicon, compared to traditional Fe2+Fenton reagent can realize that catalyst is grown
Phase uses, in the absence of catalytic agent reuse problem.And due to not needing Fe2+Generate Fe3+The condition of flocculation, no sludge produce,
Catalyst will not be wasted because of flocculation, reduce dioxygen water consumption, significantly improve catalyst efficiency.Solid catalyst of the present invention will be double
Oxygen water decomposition is that the principle of hydroxyl radical free radical is：
The present invention compared with prior art, has advantages below and beneficial effect：
1. liquid fenton catalyst is converted into the solid catalyst that active component is copper-manganese aluminium Si composite oxide, improve
The utilization ratio of catalyst, reduce dioxygen water consumption, reduce operating cost, reuse and the sludge for solving liquid catalyst
Measure big problem.
2. compared with the liquid fenton catalyst with treating capacity, in water inlet indices and added catalytic amount identical
In the case of, apparatus of the present invention can improve overall COD clearances 10~50% with method, do not produce iron containing sludge, also reduce dioxygen
The waste of water medication, effluent quality is ensured, is easy to the progress of follow-up biological processing unit.
Brief description of the drawings
Fig. 1 is the hydrogen peroxide heterocatalysis oxidized waste water processing device structure diagram of embodiment 1；
In figure：1st, wastewater inlet pipe, 2, hydrogen peroxide water inlet pipe, 3, hydrogen peroxide storage tank, 4, waste water storage tank, 5, waste water draining valve, 6,
Hydrogen peroxide draining valve, 7, hydrogen peroxide delivery pump, 8, waste water delivery pump, 9, waste water inlet, 10, dioxygen water inlet, 11, water-locator,
12nd, fixed bed solid catalyst layer, 13, tank；
Fig. 2 is the hydrogen peroxide heterocatalysis oxidized waste water processing device structure diagram of embodiment 2；
In figure：1st, wastewater inlet pipe, 2, hydrogen peroxide water inlet pipe, 3, hydrogen peroxide storage tank, 4, waste water storage tank, 5, waste water draining valve, 6,
Hydrogen peroxide draining valve, 7, hydrogen peroxide delivery pump, 8, waste water delivery pump, 9, waste water inlet, 10, dioxygen water inlet, 11, water-locator,
12nd, fluid bed solids catalyst layer, 13, tank.
Embodiment
The principle of the invention and feature are described below in conjunction with the accompanying drawings, illustrated embodiment is served only for explaining the present invention, and
Non-limiting the scope of the present invention.
First, COD devices in hydrogen peroxide heterocatalysis oxidized waste water
Embodiment 1
A kind of hydrogen peroxide heterocatalysis oxidized waste water processing unit（Fixed bed, as shown in Figure 1）, specially a kind of wastewater oxidation
Tower, including hydrogen peroxide storage tank 3 and waste water storage tank 4 positioned at tower body top, the He of fixed bed solid catalyst layer 12 in the middle part of tower body
The water-locator 11 of tower body bottom；
Wastewater trough 4 connects wastewater inlet pipe 1, and dioxygen tank 3 connects hydrogen peroxide water inlet pipe 2；
Wastewater trough 4 is connected with the waste water inlet 9 of wastewater oxidation tower bottom, and the He of waste water draining valve 5 is provided with connecting pipeline
Waste water delivery pump 8；
Dioxygen tank 3 is connected with the dioxygen water inlet 10 of wastewater oxidation tower bottom, and is provided with hydrogen peroxide on connecting pipeline and arranges
Water valve 6 and hydrogen peroxide delivery pump 7；
The top of fixed bed solid catalyst layer 12 is connected provided with overfall with tank 13.
Embodiment 2
A kind of hydrogen peroxide heterocatalysis oxidized waste water processing unit（Fluid bed, as shown in Figure 2）,
Specially a kind of wastewater oxidation tower, including hydrogen peroxide storage tank 3 and waste water storage tank 4 positioned at tower body top, in the middle part of tower body
Fluid bed solids catalyst layer 12 and the water-locator of tower body bottom 11；
Wastewater trough 4 connects wastewater inlet pipe 1, and dioxygen tank 3 connects hydrogen peroxide water inlet pipe 2；
Wastewater trough 4 is connected with the waste water inlet 9 of wastewater oxidation tower bottom, and the He of waste water draining valve 7 is provided with connecting pipeline
Waste water delivery pump 8；
Dioxygen tank 3 is connected with the dioxygen water inlet 10 of wastewater oxidation tower bottom, and is provided with hydrogen peroxide on connecting pipeline and arranges
Water valve 5 and hydrogen peroxide delivery pump 6；
The top of fluid bed solids catalyst layer 12 is connected provided with overfall with tank 13.
2nd, COD methods in hydrogen peroxide heterocatalysis oxidized waste water
In following embodiments, used solid catalyst copper-manganese aluminium Si composite oxide, its active component is CuMnOx, carrier
For AlSiOx, wherein 2<x<4；Preparation method is：
1）With silica gel（Silica gel glue）It is adhesive by γ-Al2O35~10mm of diameter bead is made, in 70~120 DEG C of bakings
Dry, then 500 DEG C of roasting 1h, obtain carrier；
2）With mantoquita（Copper nitrate）And manganese salt（Manganese nitrate）For the precursor of active component, it is dissolved in deionized water, must impregnates
Liquid, wherein, the mol ratio of copper and manganese is 1:1, the weight/mass percentage composition of copper is 15%；
3）Carrier is transferred in maceration extract, using impregnation active component, after impregnating 4h, dried at 70~120 DEG C, so
6h is calcined at 500 DEG C afterwards, obtains copper-manganese aluminium Si composite oxide.
Embodiment 3
A kind of COD method in hydrogen peroxide heterocatalysis oxidized waste water（Using the device of embodiment 1）, step is：
（1）Respectively by waste water that COD concentration is 100 mg/L by wastewater inlet pipe 1, hydrogen peroxide mass concentration be 27.5% it is double
Oxygen water is passed into the hydrogen peroxide storage tank 3 and waste water storage tank 4 on wastewater oxidation tower top by hydrogen peroxide water inlet pipe 2；Then by dioxygen
The liquid of water storage tank 3 enters tower body bottom water distribution by hydrogen peroxide draining valve 6 and hydrogen peroxide delivery pump 7 by dioxygen water inlet 10
The entrance of device 11；By the liquid in waste water storage tank 4 by waste water draining valve 5 and waste water delivery pump 8, tower is entered by waste water inlet 9
The entrance of body bottom water-locator 11；Control the liquid of water-locator porch, the quality of hydrogen peroxide and COD in waste water in hydrogen peroxide
Than for 0.5:1；
（2）Waste water and hydrogen peroxide after water-locator is distributed form uniform mixed liquor, then flow through fixed bed solid catalyst layer,
Residence time is 15~60 min；The mass ratio of solid catalyst and mixed liquor is 1:100, wherein, solid catalyst is copper-manganese
Aluminium Si composite oxide, hydrogen peroxide are decomposed into hydroxyl radical free radical in catalyst surface, and hydroxyl radical free radical aoxidizes the COD in waste water
For carbon dioxide and water, it is oxidation-treated after waste water from the overfall water outlet on solid catalyst layer top, into tank.Will
The COD of waste water is reduced to 50 mg/L from 100 mg/L.
Embodiment 4
A kind of COD method in hydrogen peroxide heterocatalysis oxidized waste water（Using the device of embodiment 1）, step reference embodiment 3, no
It is with part：
Step（1）In, waste water COD concentration is 300 mg/L；Control the liquid of water-locator porch, in hydrogen peroxide hydrogen peroxide with
COD mass ratio is 0.8 in waste water:1；
Step（2）In, mixed liquor flows through fixed bed solid catalyst layer, and the residence time is 15~60 min；Solid catalyst with
The mass ratio of mixed liquor is 1:200.
The COD of waste water is reduced to 50 mg/L from 300 mg/L.
Embodiment 5
A kind of COD method in hydrogen peroxide heterocatalysis oxidized waste water（Using the device of embodiment 1）, step reference embodiment 3, no
It is with part：
Step（1）In, waste water COD concentration is 500 mg/L；Control the liquid of water-locator porch, hydrogen peroxide in hydrogen peroxide
Mass ratio with COD in waste water is 1:1；
Step（2）In, mixed liquor flows through fixed bed solid catalyst layer, and the residence time is 15~60 min；Solid catalyst with
The mass ratio of mixed liquor is 1:300.
The COD of waste water is reduced to 50 mg/L from 500 mg/L.
Embodiment 6
A kind of COD method in hydrogen peroxide heterocatalysis oxidized waste water（Using the device of embodiment 2）, step reference embodiment 3, no
It is with part：
Step（1）In, respectively by COD concentration be 100 mg/L waste water；Control the liquid of water-locator porch, mistake in hydrogen peroxide
Hydrogen oxide and COD in waste water mass ratio are 0.5:1；
Step（2）In, mixed liquor flows through fluid bed solids catalyst layer, and the residence time is 15~60 min；Solid catalyst with
The mass ratio of mixed liquor is 1:100.
The COD of waste water is reduced to 40 mg/L from 100 mg/L.
Embodiment 7
A kind of COD method in hydrogen peroxide heterocatalysis oxidized waste water（Using the device of embodiment 2）, step reference embodiment 3, no
It is with part：
Step（1）In, respectively by COD concentration be 300 mg/L waste water；Control the liquid of water-locator porch, mistake in hydrogen peroxide
Hydrogen oxide and COD in waste water mass ratio are 0.8:1；
Step（2）In, mixed liquor flows through fluid bed solids catalyst layer, and the residence time is 15~60 min；Solid catalyst with
The mass ratio of mixed liquor is 1:200.
The COD of waste water is reduced to 40 mg/L from 300 mg/L.
Embodiment 8
A kind of COD method in hydrogen peroxide heterocatalysis oxidized waste water（Using the device of embodiment 2）, step reference embodiment 3, no
It is with part：
Step（1）In, respectively by COD concentration be 500 mg/L waste water；Control the liquid of water-locator porch, mistake in hydrogen peroxide
Hydrogen oxide and COD in waste water mass ratio are 1:1；
Step（2）In, mixed liquor flows through fluid bed solids catalyst layer, and the residence time is 15~60 min；Solid catalyst with
The mass ratio of mixed liquor is 1:300.
The COD of waste water is reduced to 40 mg/L from 500 mg/L.
Claims (10)
- A kind of 1. COD device in hydrogen peroxide heterocatalysis oxidized waste water, it is characterised in that：Specially a kind of wastewater oxidation tower, Including the hydrogen peroxide storage tank and waste water storage tank positioned at tower body top, the water distribution of solid catalyst layer and tower body bottom in the middle part of tower body Device；The wastewater trough connects wastewater inlet pipe, and the dioxygen tank connects hydrogen peroxide water inlet pipe；The wastewater trough is connected with the waste water inlet of wastewater oxidation tower bottom, and on connecting pipeline be provided with waste water draining valve and Waste water delivery pump；The dioxygen tank is connected with the dioxygen water inlet of wastewater oxidation tower bottom, and is provided with hydrogen peroxide on connecting pipeline and arranges Water valve and hydrogen peroxide delivery pump；The top of the solid catalyst layer is connected provided with overfall with tank.
- 2. device according to claim 1, it is characterised in that：The solid catalyst layer is fixed bed solid catalyst layer Or fluid bed solids catalyst layer.
- 3. a kind of COD method in hydrogen peroxide heterocatalysis oxidized waste water, it is characterised in that step includes：（1）Waste water and hydrogen peroxide are each led into the hydrogen peroxide storage tank and waste water storage tank on wastewater oxidation tower top, then will be double Liquid in oxygen water storage tank and waste water storage tank is pumped to the entrance of tower body bottom water-locator respectively；（2）Waste water and hydrogen peroxide after water-locator is distributed form uniform mixed liquor, then flow through fixed bed or fluid bed form Solid catalyst layer, wherein, solid catalyst is copper-manganese aluminium Si composite oxide, and hydrogen peroxide is decomposed into hydroxyl in catalyst surface COD in waste water is oxidized to carbon dioxide and water by base free radical, hydroxyl radical free radical, it is oxidation-treated after waste water urged from solid The overfall water outlet on agent layer top, into tank.
- 4. according to the method for claim 3, it is characterised in that：Step（1）In, hydrogen peroxide mass concentration is in hydrogen peroxide 27.5%。
- 5. according to the method for claim 3, it is characterised in that：Step（1）In, the liquid of water-locator porch is pumped to, Hydrogen peroxide and COD in waste water mass ratio are 0.5~1 in hydrogen peroxide:1.
- 6. according to the method for claim 3, it is characterised in that：Step（2）In, described copper-manganese aluminium Si composite oxide, Active component is CuMnOx, carrier AlSiOx, wherein 2<x<4.
- 7. according to the method for claim 3, it is characterised in that：Step（2）In, described copper-manganese aluminium Si composite oxide, Preparation method is：1）It is adhesive by γ-Al using silica gel2O35~10mm of diameter bead is made, is dried at 70~120 DEG C, then 500 DEG C 1h is calcined, obtains carrier；2）Using mantoquita and manganese salt as the precursor of active component, it is dissolved in deionized water, obtains maceration extract, wherein, copper and manganese Mol ratio is 1:1, the weight/mass percentage composition of copper is 15%；3）Carrier is transferred in maceration extract, using impregnation active component, impregnates 1~4h, dipping complete after 70~ 120 DEG C of drying, are then calcined 6h at 500 DEG C, obtain copper-manganese aluminium Si composite oxide.
- 8. according to the method for claim 7, it is characterised in that：Step 2）In, the mantoquita is copper nitrate or copper acetate, manganese Salt is manganese nitrate or manganese acetate.
- 9. according to the method for claim 3, it is characterised in that：Step（2）In, waste water flows through the residence time of catalyst layer For 15~60 min.
- 10. according to the method for claim 3, it is characterised in that：Step（2）In, in tower body, solid catalyst and mixed liquor Mass ratio be 1:100~500.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110227393A (en) * | 2019-06-04 | 2019-09-13 | 浙江工业大学 | It is a kind of based on W catalyst+hydrogen peroxide homogeneous catalysis system counter current absorption reaction unit and its application method |
| CN112604695A (en) * | 2020-12-17 | 2021-04-06 | 山东太平洋环保股份有限公司 | Wastewater treatment catalyst, preparation method thereof, wastewater treatment system and method |
| CN114471602A (en) * | 2022-01-04 | 2022-05-13 | 广州华浩能源环保集团股份有限公司 | Heterogeneous catalyst and preparation method and application thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227393A (en) * | 2019-06-04 | 2019-09-13 | 浙江工业大学 | It is a kind of based on W catalyst+hydrogen peroxide homogeneous catalysis system counter current absorption reaction unit and its application method |
| CN110227393B (en) * | 2019-06-04 | 2021-10-26 | 浙江工业大学 | Countercurrent adsorption reaction device based on W catalyst + hydrogen peroxide homogeneous catalysis system and use method thereof |
| CN112604695A (en) * | 2020-12-17 | 2021-04-06 | 山东太平洋环保股份有限公司 | Wastewater treatment catalyst, preparation method thereof, wastewater treatment system and method |
| CN112604695B (en) * | 2020-12-17 | 2024-04-16 | 山东太平洋环保股份有限公司 | Wastewater treatment catalyst, preparation method thereof, wastewater treatment system and method |
| CN114471602A (en) * | 2022-01-04 | 2022-05-13 | 广州华浩能源环保集团股份有限公司 | Heterogeneous catalyst and preparation method and application thereof |
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