CN111167453A - Preparation method and application method of catalyst for removing ammonia nitrogen in water - Google Patents
Preparation method and application method of catalyst for removing ammonia nitrogen in water Download PDFInfo
- Publication number
- CN111167453A CN111167453A CN202010098605.4A CN202010098605A CN111167453A CN 111167453 A CN111167453 A CN 111167453A CN 202010098605 A CN202010098605 A CN 202010098605A CN 111167453 A CN111167453 A CN 111167453A
- Authority
- CN
- China
- Prior art keywords
- ammonia nitrogen
- water
- catalyst
- removing ammonia
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000003054 catalyst Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002351 wastewater Substances 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 239000010949 copper Substances 0.000 claims abstract description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- IYSZZDVKUXVSQY-UHFFFAOYSA-N [O-2].[Fe+2].[Cu]=O Chemical compound [O-2].[Fe+2].[Cu]=O IYSZZDVKUXVSQY-UHFFFAOYSA-N 0.000 claims description 5
- 150000001879 copper Chemical class 0.000 claims description 5
- 150000002505 iron Chemical class 0.000 claims description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 230000032683 aging Effects 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000007800 oxidant agent Substances 0.000 abstract description 2
- 230000001590 oxidative effect Effects 0.000 abstract description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 10
- 229910021529 ammonia Inorganic materials 0.000 description 5
- 239000000126 substance Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000002306 biochemical method Methods 0.000 description 2
- 238000012851 eutrophication Methods 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- B01J23/74—Iron group metals
- B01J23/745—Iron
-
- 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
- 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
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- 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
- C02F2209/14—NH3-N
Abstract
A preparation method and an application method of a catalyst for removing ammonia nitrogen in water belong to the technical field of water treatment in environmental protection, and can solve the problems that secondary pollution is easily caused and treatment conditions are harsh in sewage treatment in the prior art. The hydrogen peroxide is used as an oxidant for treating ammonia nitrogen wastewater, and the nano copper oxide-ferric oxide composite material is used as a catalyst, so that the effect is obvious. And no secondary pollution is caused.
Description
Technical Field
The invention belongs to the technical field of water treatment in environmental protection, and particularly relates to a preparation method and an application method of a catalyst for removing ammonia nitrogen in water.
Background
Ammonia nitrogen pollution is a common problem in water treatment. With free ammonia (NH)3) And ammonium ion (NH)4 +) The ammonia nitrogen in the form of nitrogen polluted water is called hydrated ammonia, also called non-ionic ammonia. The non-ionic ammonia is a main factor causing the toxicity of aquatic organisms, the ammonia nitrogen is a nutrient in the water body, can cause the phenomenon of water eutrophication, is a main oxygen-consuming pollutant in the water body, and has toxicity to fishes and some aquatic organisms. The ammonia nitrogen wastewater is mainly from chemical fertilizer, coking, petrifaction, pharmacy, food, refuse landfill and the likeThe large amount of ammonia nitrogen wastewater discharged into the water body not only causes eutrophication of the water body and causes black and odorous water body, increases the difficulty and cost of water supply treatment, even has toxic action on people and organisms, but also has various treatment processes of biological method and physical and chemical method and the like aiming at the treatment process of the ammonia nitrogen wastewater.
At present, the treatment of high-concentration ammonia nitrogen wastewater at home and abroad mainly adopts the technologies of an alkali-adding stripping method, an electrolysis method, an MAP precipitation method, an ion exchange method, a breakpoint chlorination method and the like; the treatment of low-concentration ammonia nitrogen waste water mainly includes adsorption method, chemical oxidation method and biochemical method. Each method has certain defects, the more common method is a biochemical method, the treatment cost is reduced by mainly adopting a nitrification-denitrification principle, but the reaction speed is slow, and the hydraulic retention time is usually longer, so that a larger structure is required, and the occupied area is larger.
Therefore, a new ammonia nitrogen treatment method is urgently adopted.
Disclosure of Invention
The invention provides a preparation method and an application method of a catalyst for removing ammonia nitrogen in water, aiming at the problems of secondary pollution and harsh treatment conditions easily caused by sewage treatment in the prior art.
The invention adopts the following technical scheme:
a preparation method of a catalyst for removing ammonia nitrogen in water comprises the following steps:
adding a copper salt and an iron salt into distilled water according to a certain proportion, uniformly stirring, adding polyethylene glycol as a dispersing agent, performing ultrasonic dispersion for 10-20 min, adding concentrated ammonia water, adjusting the pH value to be neutral, standing, aging, filtering, drying, and calcining at 300-500 ℃ for 2-3 h to obtain the nano copper oxide-iron oxide composite catalyst material.
The molar ratio of the copper salt to the iron salt is 1: 0.8-1.2.
An application method of a catalyst for removing ammonia nitrogen in water comprises the following steps:
adding the nano copper oxide-iron oxide composite catalyst material into wastewater with ammonia nitrogen concentration of 50-100 mg/L in proportion, slowly adding hydrogen peroxide in proportion while stirring, uniformly stirring at a rotating speed of 50rpm for 20-30 minutes after the addition is finished, and standing until mud and water are separated, wherein the effluent meets the treatment requirement.
The ratio of the nano copper oxide-ferric oxide composite catalyst material to the ammonia nitrogen wastewater is 0.5 g/L-0.7 g/L.
The mass ratio of the hydrogen peroxide to the ammonia nitrogen is 7.5-15: 1.
The invention has the following beneficial effects:
the catalyst prepared by the preparation method has good ammonia nitrogen removal effect. Can be used for removing ammonia from sewage. The invention adopts hydrogen peroxide as an oxidant to treat ammonia nitrogen wastewater, and the nano copper oxide-ferric oxide composite material is used as a catalyst, so that the effect is obvious. And no secondary pollution is caused.
Detailed Description
Examples
Preparation: adding a proper amount of copper salt and ferric salt into distilled water according to a molar ratio of 1:1, uniformly stirring, adding polyethylene glycol as a dispersing agent, performing ultrasonic dispersion for 20min, adding concentrated ammonia water, adjusting the pH value to be neutral, standing, aging, filtering, drying, and calcining at 400 ℃ for 3 hours to obtain the nano copper oxide-iron oxide composite catalyst material.
The implementation is as follows: adding the prepared nano copper oxide-ferric oxide composite material into wastewater with ammonia nitrogen concentration of 50mg/L according to 0.6g/L, slowly adding hydrogen peroxide, and adding the hydrogen peroxide according to H2O2The mass ratio of the ammonia nitrogen to the ammonia nitrogen is 15:1, stirring while adding, uniformly stirring for 30 minutes at a rotating speed of 50rpm after adding, standing until mud and water are separated, and enabling the effluent to meet the treatment requirement.
Claims (5)
1. A preparation method of a catalyst for removing ammonia nitrogen in water is characterized by comprising the following steps: the method comprises the following steps:
adding a copper salt and an iron salt into distilled water according to a certain proportion, uniformly stirring, adding polyethylene glycol as a dispersing agent, performing ultrasonic dispersion for 10-20 min, adding concentrated ammonia water, adjusting the pH value to be neutral, standing, aging, filtering, drying, and calcining at 300-500 ℃ for 2-3 h to obtain the nano copper oxide-iron oxide composite catalyst material.
2. The preparation method of the catalyst for removing ammonia nitrogen in water according to claim 1, characterized by comprising the following steps: the molar ratio of the copper salt to the iron salt is 1: 0.8-1.2.
3. An application method of a catalyst for removing ammonia nitrogen in water is characterized in that: the method comprises the following steps:
adding the nano copper oxide-iron oxide composite catalyst material into wastewater with ammonia nitrogen concentration of 50-100 mg/L in proportion, slowly adding hydrogen peroxide in proportion while stirring, uniformly stirring at a rotating speed of 50rpm for 20-30 minutes after the addition is finished, and standing until mud and water are separated, wherein the effluent meets the treatment requirement.
4. The application method of the catalyst for removing ammonia nitrogen in water according to claim 3, characterized in that: the ratio of the nano copper oxide-ferric oxide composite catalyst material to the ammonia nitrogen wastewater is 0.5 g/L-0.7 g/L.
5. The application method of the catalyst for removing ammonia nitrogen in water according to claim 3, characterized in that: the mass ratio of the hydrogen peroxide to the ammonia nitrogen is 7.5-15: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010098605.4A CN111167453A (en) | 2020-02-18 | 2020-02-18 | Preparation method and application method of catalyst for removing ammonia nitrogen in water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010098605.4A CN111167453A (en) | 2020-02-18 | 2020-02-18 | Preparation method and application method of catalyst for removing ammonia nitrogen in water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111167453A true CN111167453A (en) | 2020-05-19 |
Family
ID=70648363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010098605.4A Pending CN111167453A (en) | 2020-02-18 | 2020-02-18 | Preparation method and application method of catalyst for removing ammonia nitrogen in water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111167453A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114573056A (en) * | 2020-11-30 | 2022-06-03 | 刘耀红 | Sewage ammonia nitrogen remover and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367044A (en) * | 2008-07-18 | 2009-02-18 | 清华大学 | Method for preparing nano-catalyst copper chromite and copper ferrite |
| CN102049258A (en) * | 2010-11-04 | 2011-05-11 | 哈尔滨工业大学 | Method for preparing composite type solid oxide catalyst |
| CN103127899A (en) * | 2011-11-29 | 2013-06-05 | 中国科学院烟台海岸带研究所 | Arsenic removal absorbent-iron and copper composite oxide and preparation method of copper composite oxide |
| CN103920481A (en) * | 2014-04-18 | 2014-07-16 | 厦门大学 | Compound solid base catalyst as well as preparation method and application thereof |
| CN205076920U (en) * | 2015-09-01 | 2016-03-09 | 重庆巨科环保有限公司 | Electricity treatment of ammonia nitrogen waste water device |
| CN106882866A (en) * | 2017-02-24 | 2017-06-23 | 河北科技大学 | The method that hydrogen peroxide synergy ozone heterogeneous catalytic oxidation processes waste water |
| CN106927509A (en) * | 2017-04-13 | 2017-07-07 | 四川理工学院 | A kind of preparation method of loose structure delafossite crystalline material |
| CN108772101A (en) * | 2018-08-16 | 2018-11-09 | 南京工业大学 | A kind of efficient metal complex molecule catalyst and its preparation and application |
-
2020
- 2020-02-18 CN CN202010098605.4A patent/CN111167453A/en active Pending
Patent Citations (8)
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|---|---|---|---|---|
| CN101367044A (en) * | 2008-07-18 | 2009-02-18 | 清华大学 | Method for preparing nano-catalyst copper chromite and copper ferrite |
| CN102049258A (en) * | 2010-11-04 | 2011-05-11 | 哈尔滨工业大学 | Method for preparing composite type solid oxide catalyst |
| CN103127899A (en) * | 2011-11-29 | 2013-06-05 | 中国科学院烟台海岸带研究所 | Arsenic removal absorbent-iron and copper composite oxide and preparation method of copper composite oxide |
| CN103920481A (en) * | 2014-04-18 | 2014-07-16 | 厦门大学 | Compound solid base catalyst as well as preparation method and application thereof |
| CN205076920U (en) * | 2015-09-01 | 2016-03-09 | 重庆巨科环保有限公司 | Electricity treatment of ammonia nitrogen waste water device |
| CN106882866A (en) * | 2017-02-24 | 2017-06-23 | 河北科技大学 | The method that hydrogen peroxide synergy ozone heterogeneous catalytic oxidation processes waste water |
| CN106927509A (en) * | 2017-04-13 | 2017-07-07 | 四川理工学院 | A kind of preparation method of loose structure delafossite crystalline material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114573056A (en) * | 2020-11-30 | 2022-06-03 | 刘耀红 | Sewage ammonia nitrogen remover and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200519 |