CN117003342A - Preparation method and application of nickel slag-based micro-electrolysis filler material - Google Patents
Preparation method and application of nickel slag-based micro-electrolysis filler material Download PDFInfo
- Publication number
- CN117003342A CN117003342A CN202310926211.7A CN202310926211A CN117003342A CN 117003342 A CN117003342 A CN 117003342A CN 202310926211 A CN202310926211 A CN 202310926211A CN 117003342 A CN117003342 A CN 117003342A
- Authority
- CN
- China
- Prior art keywords
- nickel slag
- electrolysis filler
- based micro
- filler material
- azo compound
- 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
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 122
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 61
- 239000002893 slag Substances 0.000 title claims abstract description 60
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 38
- 239000000945 filler Substances 0.000 title claims abstract description 37
- 239000000463 material Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000002351 wastewater Substances 0.000 claims abstract description 22
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 18
- -1 azo compound Chemical class 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000003245 coal Substances 0.000 claims abstract description 11
- 230000007613 environmental effect Effects 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 10
- 230000015556 catabolic process Effects 0.000 claims abstract description 9
- 238000006731 degradation reaction Methods 0.000 claims abstract description 9
- 238000000227 grinding Methods 0.000 claims abstract description 9
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 9
- 239000002910 solid waste Substances 0.000 claims abstract description 7
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 3
- 230000001131 transforming effect Effects 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010907 mechanical stirring Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 abstract description 10
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 8
- 229940012189 methyl orange Drugs 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
Abstract
The invention belongs to the field of environmental protection, and provides a process method for preparing nickel slag-based micro-electrolysis filler material from solid waste nickel slag, wherein the nickel slag-based micro-electrolysis filler is applied to environmental treatment of azo compound type wastewater. The invention discloses a nickel slag-based micro-electrolysis filler material prepared by using nickel slag as a raw material, coal as a reducing agent and sodium carbonate as a transforming agent through a roasting-cooling-grinding process, and the nickel slag-based micro-electrolysis filler is applied to azo compound degradation in azo compound type wastewater. The nickel slag-based micro-electrolysis filler material has simple preparation process and low cost, the degradation rate of the preparation material to azo compounds in azo compound type wastewater can reach more than 90%, and the purpose of environment protection of treating waste by waste is realized.
Description
Technical Field
The invention relates to resource type environment-friendly utilization of solid waste nickel slag, which comprises the steps of firstly preparing nickel slag into a nickel slag-based micro-electrolysis filler material by a roasting-cooling-grinding process method, and then applying the nickel slag-based micro-electrolysis filler material to environmental treatment of azo compound type wastewater. The invention can realize the environmental protection purpose of treating waste with waste.
Background
Nickel slag is a large amount of solid waste generated in the industrial production process of nonferrous metal nickel, and the traditional method is difficult to realize effective utilization because of the complex components. At present, the deposited nickel slag causes potential harm to the environment, and meanwhile, part of valuable resources of the nickel slag are wasted. Azo compounds are often used in chemical industry, and part of the azo compounds can be released into the environment in the use process, and the azo compounds with stable chemical properties are difficult to degrade in the natural environment and easily cause different degrees of pollution to water bodies, so that the development of a material with low preparation cost and high degradation efficiency for treating azo compound type wastewater is necessary. According to the invention, the solid waste nickel slag environment-friendly utilization technology is combined with the micro-electrolysis technology, the nickel slag is prepared into the nickel slag-based micro-electrolysis filler material by a roasting-cooling-grinding process method, and then the nickel slag-based micro-electrolysis filler material is applied to the environment treatment of azo compound type wastewater, so that the environment-friendly purpose of treating waste with waste is realized.
Disclosure of Invention
The invention provides a preparation method of a nickel slag-based micro-electrolysis filler material and an environment treatment process for applying the preparation material to azo compound type wastewater. The invention realizes the resource environmental protection utilization of the solid waste nickel slag on one hand, and the environmental treatment of azo compound type waste water on the other hand, thereby achieving the environmental protection purpose of treating waste with waste.
The technical scheme adopted by the invention is as follows:
the preparation method of the nickel slag-based micro-electrolysis filler material comprises the steps of taking nickel slag as a raw material, taking coal as a reducing agent and sodium carbonate as a transforming agent, mixing the materials according to a certain proportion, preparing the nickel slag-based micro-electrolysis filler material through a roasting, cooling and grinding process method, and applying the nickel slag-based micro-electrolysis filler material to degradation of azo compounds in azo compound type wastewater, wherein the specific steps are as follows:
(1) The nickel slag and the reducer coal are respectively crushed and graded to prepare raw materials with granularity of 100 percent which is less than or equal to 0.1 mm;
(2) The mass ratio of the nickel slag to the coal is 1:0.25-1:0.45, and the addition amount of the sodium carbonate is 0.1-1% of the mass of the nickel slag;
(3) Mixing nickel slag, coal and sodium carbonate in a certain proportion, and obtaining a roasting product under the roasting condition that the temperature is 1100-1300 ℃ and the time is 40-150 min;
(4) After the baked product is cooled to room temperature, the nickel slag-based micro-electrolysis filler material with the granularity of less than or equal to 0.1mm and 100 percent is prepared through a grinding process.
(5) And regulating the pH value of the prepared azo compound type wastewater to 1-3, and adding a nickel slag-based micro-electrolysis filler material, wherein the adding amount of the micro-electrolysis filler is 3-9 g/L, and the mechanical stirring is carried out for 60min, the rotating speed is 200-400 rmp, and the degradation rate of azo compounds in the wastewater is more than 90%.
The nickel slag-based micro-electrolysis filler can be effectively applied to the environmental treatment of azo compound type wastewater.
Compared with the prior art, the invention has the advantages that:
(1) The solid waste nickel slag realizes the resource environment-friendly utilization, is prepared into the nickel slag-based micro-electrolysis filler material, and has the advantages of simple preparation method, low cost and easy mass production.
(2) The nickel slag-based micro-electrolysis filler material prepared by the invention can effectively degrade azo compounds in azo compound type wastewater, and the degradation rate can reach more than 90%.
(3) The nickel slag-based micro-electrolysis filler prepared by the invention has long-term stability.
(4) The invention realizes the purpose of environmental treatment of treating waste with waste.
Drawings
FIG. 1 is a flow chart of a method for preparing and applying a nickel slag based micro-electrolysis filler material of the present invention.
Detailed Description
The invention is further described below in connection with specific examples.
Example 1
A preparation method and application of nickel slag-based micro-electrolysis filler material comprises the following steps:
according to the mass ratio of 1: and 0.35 of weighing nickel slag with granularity less than or equal to-0.1 mm, wherein the dosage of sodium carbonate is 0.3%, fully and uniformly mixing, putting the nickel slag and the coal into a crucible, putting the sample crucible into the muffle furnace for roasting for 80min after the temperature of the muffle furnace is raised to 1100 ℃, and grinding the roasted product to less than or equal to-0.1 mm after cooling the roasted product to room temperature in air, thus obtaining the nickel slag-based micro-electrolysis filler material.
The pH value of the azo compound type wastewater containing methyl orange is adjusted to be 2, then nickel slag-based micro-electrolysis filler is added into the wastewater at a concentration of 5g/L, after mechanical stirring is carried out for 60min, the solution is filtered by a water system filtering membrane with a concentration of 0.45 mu m, and then the concentration of the methyl orange is measured.
In the first example, the initial concentration of the azo compound methyl orange was 100mg/L, the concentration after the reaction was completed was 8.49mg/L, and the degradation rate of the azo compound methyl orange was 91.51%.
Example two
A preparation method and application of nickel slag-based micro-electrolysis filler material comprises the following steps:
according to the mass ratio of 1: and 0.35 of weighing nickel slag with granularity less than or equal to-0.1 mm, wherein the dosage of sodium carbonate is 0.3%, fully and uniformly mixing, putting the nickel slag and the coal into a crucible, putting the sample crucible into the muffle furnace for roasting for 80min after the temperature of the muffle furnace is raised to 1200 ℃, and grinding the roasted product to less than or equal to-0.1 mm after cooling the roasted product to room temperature in air, thus obtaining the nickel slag-based micro-electrolysis filler material.
The pH value of the azo compound type wastewater containing methyl orange is adjusted to be 2, then nickel slag-based micro-electrolysis filler is added into the wastewater at the rate of 7g/L, after mechanical stirring is carried out for 60min, the solution is filtered by a water system filtering membrane with the thickness of 0.45 mu m, and then the concentration of the methyl orange is measured.
In the second example, the initial concentration of the azo compound methyl orange was 100mg/L, the concentration after the completion of the reaction was 0.1mg/L, and the degradation rate of the azo compound methyl orange was 99.9%.
The scope of the present invention includes, but is not limited to, the above embodiments, and any alterations, modifications, and improvements made by those skilled in the art are intended to fall within the scope of the invention.
Claims (3)
1. A preparation method of a nickel slag-based micro-electrolysis filler material is characterized by comprising the following steps: the nickel slag-based micro-electrolysis filler material is prepared by taking solid waste nickel slag as a raw material, taking coal as a reducing agent and sodium carbonate as a transforming agent, mixing according to a certain proportion, and performing a roasting, cooling and grinding process, and is characterized in that:
(1) The nickel slag and the reducer coal are respectively crushed and graded to prepare raw materials with granularity of 100 percent which is less than or equal to 0.1 mm;
(2) The mass ratio of the nickel slag to the coal is 1:0.25-1:0.45, and the addition amount of the sodium carbonate is 0.1-1% of the mass of the nickel slag;
(3) Mixing nickel slag, coal and sodium carbonate in a certain proportion, and taking the temperature of 1100-1300 ℃ and the time of 40-150 min as roasting conditions to obtain a roasted product;
(4) After the baked product is cooled to room temperature, the nickel slag-based micro-electrolysis filler material with the granularity of less than or equal to 0.1mm and 100 percent is prepared by a grinding process method.
2. The nickel slag based micro-electrolysis filler material applied to the environmental treatment of azo compound type wastewater as claimed in claim 1, wherein the nickel slag based micro-electrolysis filler material is characterized in that: the pH value of the prepared wastewater containing azo compounds is adjusted to 1-3, nickel slag-based micro-electrolysis filler is added into the wastewater, the adding amount of the micro-electrolysis filler is 3-9 g/L, the mechanical stirring is carried out for 60min, the rotating speed is 200-400 rmp, and the degradation rate of the azo compounds in the wastewater can reach more than 90%.
3. The nickel slag based micro-electrolysis filler material of claim 1 or 2 applied to environmental treatment of azo compound type wastewater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310926211.7A CN117003342A (en) | 2023-07-26 | 2023-07-26 | Preparation method and application of nickel slag-based micro-electrolysis filler material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310926211.7A CN117003342A (en) | 2023-07-26 | 2023-07-26 | Preparation method and application of nickel slag-based micro-electrolysis filler material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117003342A true CN117003342A (en) | 2023-11-07 |
Family
ID=88563042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310926211.7A Pending CN117003342A (en) | 2023-07-26 | 2023-07-26 | Preparation method and application of nickel slag-based micro-electrolysis filler material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117003342A (en) |
-
2023
- 2023-07-26 CN CN202310926211.7A patent/CN117003342A/en active Pending
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