CN108689455B - Iron-carbon micro-electrolysis filler and use method thereof - Google Patents
Iron-carbon micro-electrolysis filler and use method thereof Download PDFInfo
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- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 57
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 239000000945 filler Substances 0.000 title abstract description 32
- 238000000034 method Methods 0.000 title abstract description 18
- 239000004005 microsphere Substances 0.000 claims abstract description 81
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 claims abstract description 40
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 37
- AHADSRNLHOHMQK-UHFFFAOYSA-N methylidenecopper Chemical compound [Cu].[C] AHADSRNLHOHMQK-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000010451 perlite Substances 0.000 claims abstract description 35
- 235000019362 perlite Nutrition 0.000 claims abstract description 35
- 239000010455 vermiculite Substances 0.000 claims abstract description 35
- 229910052902 vermiculite Inorganic materials 0.000 claims abstract description 35
- 235000019354 vermiculite Nutrition 0.000 claims abstract description 35
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 31
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052802 copper Inorganic materials 0.000 claims abstract description 27
- 239000010949 copper Substances 0.000 claims abstract description 27
- 239000002893 slag Substances 0.000 claims abstract description 27
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 21
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 21
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000004094 surface-active agent Substances 0.000 claims abstract description 21
- 239000010445 mica Substances 0.000 claims abstract description 17
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 17
- 239000004575 stone Substances 0.000 claims abstract description 16
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 9
- 239000011707 mineral Substances 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000002351 wastewater Substances 0.000 claims description 12
- 238000005273 aeration Methods 0.000 claims description 8
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 2
- 125000005456 glyceride group Chemical group 0.000 claims description 2
- 229950008882 polysorbate Drugs 0.000 claims description 2
- 229920000136 polysorbate Polymers 0.000 claims description 2
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 2
- 238000002161 passivation Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 6
- 239000010865 sewage Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 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
- C02F1/46109—Electrodes
-
- 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
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to an iron-carbon micro-electrolysis filler and a using method thereof, the iron-carbon micro-electrolysis filler is formed by mixing a plurality of iron-aluminum microspheres and copper-carbon microspheres by taking mixed mineral substances as a base, wherein the iron-aluminum microspheres comprise iron powder, aluminum slag and a surfactant, the copper-carbon microspheres comprise activated carbon powder and copper scraps, and the mixed mineral substances comprise expanded perlite, expanded micanite, expanded vermiculite and kaolin; wherein the expanded mica stone is 120-200 meshes, the expanded perlite is 90-150 meshes, and the expanded vermiculite is 80-100 meshes. The iron-carbon micro-electrolysis filler provided by the invention does not cause hardening, has a low passivation rate, and has good electrolysis efficiency and waste removal capacity by reducing the mutual interference motion among particles and optimizing the specific surface area, thereby achieving the treatment standard of intelligent green ecological cities.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to an iron-carbon micro-electrolysis filler and a using method thereof.
Background
The smart city is characterized in that various modern information processing technologies are fully utilized in various links of city operation and development, so that city management is more scientific, citizens live better, economic development is more competitive, and city development is maintained sustainability. In the international wisdom city construction at the present stage, the economic development level and the geographic area are different, so that the urban construction has different emphasis points, and the green ecological culture city is one of the important branches. How to adopt a sustainable development urban solution is a direction of attention of such smart cities, while striving to achieve urban sustainable development, the balance between environmental protection and economy is maintained.
In urban treatment, how to effectively utilize precious water resources and protect increasingly damaged water environment is an important subject, so that a simple, simple and efficient sewage treatment technology is urgently needed for building ecological smart cities. The iron-carbon micro-electrolysis technology for treating sewage is widely regarded in recent years due to simple process and convenient operation. The electrolysis technology is specifically characterized in that a primary battery is formed by utilizing the metal corrosion principle, and organic matters are subjected to electrochemical treatment through a series of actions. In the environment containing conductive electrolyte, iron filings and carbon granules form several tiny primary cells, and an electric field is formed in the action space of the primary cells, so that the secondary cells are nascent]Fe2+ and the like have redox reaction with organic matters in the environment, destroy certain groups in the organic matters, even break chains of the organic matters, and achieve the effect of decomposing the organic matters. Produced Fe2+Further oxidized to Fe3+Their hydrates have strong absorptionThe flocculation is carried out, and the adsorption of organic matters is realized.
However, a great deal of research results show that the method has many defects in application, for example, after the filler is operated for a period of time, due to corrosion of iron, agglomeration and channeling easily occur, so that the treatment effect of the iron-carbon micro-electrolysis filler is reduced, or after the iron is consumed, the carbon layer is difficult to peel off, so that the carbon layer and oxidation products of the iron are heavily wrapped on the surface of the filler, and the simple washing is difficult to ensure the immediate renewal of the surface of the product, so that the reaction effect is reduced.
Patent 201010150149.X discloses a preparation method of a regularized iron-carbon micro-electrolysis filler, which directly mixes iron powder and carbon powder for high-temperature calcination, limits the diameters of the iron powder, clay and carbon powder which are components, and avoids the problems of hardening and passivation of the filler.
Disclosure of Invention
The present invention is made to solve the above problems, and an object of the present invention is to provide an iron-carbon microelectrolytic filler capable of performing an efficient electrolytic reaction, and a method of using the same. The purpose of the invention is realized by the following technical scheme.
According to one aspect of the invention, the iron-carbon micro-electrolysis material is prepared by mixing a plurality of iron-aluminum microspheres and copper-carbon microspheres on the basis of mixed mineral substances, wherein the iron-aluminum microspheres comprise iron powder, aluminum slag and a surfactant, the copper-carbon microspheres comprise activated carbon powder and copper scraps, and the mixed mineral substances comprise expanded perlite, expanded micanite, expanded vermiculite and kaolin.
The expanded mica stone is 120-200 meshes, the expanded perlite is 90-150 meshes, and the expanded vermiculite is 80-100 meshes.
Preferably, in the iron-aluminum microspheres, 67-70 parts of iron powder, 3-11 parts of aluminum slag and 4-8 parts of surfactant are used; in the copper-carbon microspheres, 15-27 parts of activated carbon powder and 3-9 parts of copper scraps are added; in the mixed mineral, 8-12 parts of expanded perlite, 5-7 parts of expanded mica stone, 3-6 parts of expanded vermiculite and 5-11 parts of kaolin.
Preferably, the iron powder and the carbon powder are 120-180 meshes, and the diameters of the aluminum slag and the copper scraps are 0.1-0.5 mm.
Preferably, the surfactant is one or more of stearic acid, sodium dodecyl benzene sulfonate, fatty glyceride and polysorbate.
Preferably, the expanded micanite is 200 meshes, the expanded perlite is 150 meshes, and the expanded vermiculite is 100 meshes.
Preferably, the diameter of the iron-aluminum microspheres is 0.5-1.2 mm, the diameter of the copper-carbon microspheres is 1-1.5 mm, the number of the iron-aluminum microspheres is 4000-8000, and the number of the copper-carbon microspheres is 1500-2200.
According to another aspect of the invention, a method for using the iron-carbon micro-electrolysis material is provided, which comprises the following steps: immersing the iron-carbon micro-electrolysis material in wastewater to be treated under the aeration condition, and keeping the volume ratio of gas to water at 1.5-2.5: 1 for 300-500 min.
Preferably, the volume ratio of the gas to the water is 2:1, and the treatment time is 400 min.
The iron-carbon microelectronic filler is characterized in that positive and negative electrodes of an electrolytic cell are made into a large number of microspheres which are dispersed, wherein iron powder, aluminum slag and a surfactant are mixed to generate iron-aluminum microspheres serving as the positive electrode of the electrolytic cell, activated carbon powder and copper scraps are mixed to generate copper-carbon microspheres serving as the negative electrode of the electrolytic cell, and then a mixture of expanded perlite, expanded micanite, expanded vermiculite and kaolin is used as a base to sinter the two types of microspheres together at high temperature. The dispersion setting of iron-aluminum microballon and copper-carbon microballon can reduce the mutual motion interference between the electron to improve electrolytic reaction's the efficiency of removing useless.
In the iron-carbon micro-electrolysis filler, the expanded micanite, the expanded perlite and the expanded vermiculite are respectively formed by calcining and expanding the corresponding micanite, perlite and vermiculite at high temperature, and the expansion characteristics of the filler can enable a matrix of the micro-electrolysis material to have a fluffy pore structure, so that electron paths among dispersed positive and negative electrode materials are communicated in the filler, and the micro-electrolysis reaction is promoted.
According to the invention, the ratio of the expanded micanite to the expanded perlite to the expanded vermiculite to the kaolin is 5-7: 8-12: 3-6: 5 ~ 11, and the crushing degree of popped micanite, expanded perlite and popped vermiculite is cascaded setting, and the mesh range is 120 ~ 200 meshes respectively, 90 ~ 150 meshes and 80 ~ 100 meshes, and experiments prove that so set up and to make the base member have suitable specific surface area, and the aperture rate reaches more than 85%, and the aperture lies in between 0.8 ~ 2mm, and then can reach more than 95% with the area of contact of pollutant in the waste water in the little electrolytic filler, make the little electrolytic filler of iron carbon who forms have stronger water purification ability.
In addition, the iron-aluminum microspheres and the copper-carbon microspheres are used as positive and negative electrodes of the electrolytic cell and dispersed in the matrix, so that the mutual movement interference among electrons can be reduced, and the waste removal efficiency of the electrolytic reaction is improved.
In addition, the iron-aluminum microspheres contain the surfactant, so that the surface tension of the microspheres can be reduced, sewage can be in full contact with the surfaces of the iron-aluminum microspheres, and the electrolytic reaction is promoted. In addition, the expanded perlite, the expanded mica stone, the expanded vermiculite and the kaolin contain metal components, so that the electrolytic reaction can be promoted, and the water purifying capacity of the micro-electrolytic material is improved.
Based on the above, the invention has the advantages that:
1. the invention enables the iron-carbon micro-electrolysis filler to have good electrolysis efficiency and waste removal capacity by reducing the mutual interference motion among particles and optimizing the specific surface area.
2. The iron-carbon micro-electrolysis filler provided by the invention does not cause hardening and has a low passivation rate.
3. The iron-carbon micro-electrolysis filler is easy to recycle and can save cost.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below. While exemplary embodiments of the present disclosure have been shown in the present specification, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In accordance with an embodiment of the present invention, an iron-carbon microelectrolytic filler and a method of using the same are provided, and the present invention is further illustrated by way of specific examples.
Example 1
The iron-carbon micro-electrolysis material X1 is prepared by fusing a plurality of iron-aluminum microspheres and copper-carbon microspheres on the basis of a mixture of expanded perlite, expanded mica stone, expanded vermiculite and kaolin, wherein the iron-aluminum microspheres comprise iron powder, aluminum slag and a surfactant, and the copper-carbon microspheres comprise activated carbon powder and copper scraps.
In the iron-carbon micro-electrolysis material X1, 8 parts of expanded perlite, 7 parts of expanded mica stone, 3 parts of expanded vermiculite, 5 parts of kaolin, 67 parts of iron powder, 3 parts of aluminum slag, 4 parts of surfactant, 15 parts of activated carbon powder and 9 parts of copper scraps; wherein the expanded micanite is 120 meshes, the expanded perlite is 90 meshes, the expanded vermiculite is 80 meshes, the diameters of the aluminum slag and the copper scraps are both 0.1mm, and the iron powder and the activated carbon powder are 120 meshes; the diameter of the iron-aluminum microspheres is 0.5mm, the diameter of the copper-carbon microspheres is 0.5mm, the number of the iron-aluminum microspheres is 8000, and the number of the copper-carbon microspheres is 2200.
The use method of the iron-carbon micro-electrolysis material X1 comprises the following steps:
immersing the iron-carbon micro-electrolysis material X1 in wastewater to be treated under the aeration condition, and keeping the volume ratio of gas to water at 1.5:1 for 300 min.
Example 2
The iron-carbon micro-electrolysis material X2 is prepared by fusing a plurality of iron-aluminum microspheres and copper-carbon microspheres on the basis of a mixture of expanded perlite, expanded mica stone, expanded vermiculite and kaolin, wherein the iron-aluminum microspheres comprise iron powder, aluminum slag and a surfactant, and the copper-carbon microspheres comprise activated carbon powder and copper scraps.
70 parts of iron powder, 11 parts of aluminum slag, 8 parts of surfactant, 5 parts of expanded micanite, 12 parts of expanded perlite, 6 parts of expanded vermiculite, 11 parts of kaolin, 27 parts of activated carbon powder and 3 parts of copper scraps in the iron-carbon micro-electrolysis material X2; wherein the expanded micanite is 200 meshes, the expanded perlite is 120 meshes, the expanded vermiculite is 100 meshes, the iron powder is 180 meshes, the diameters of the aluminum slag and the copper scraps are 0.5mm, and the activated carbon powder is 180 meshes; the diameter of the iron-aluminum microspheres is 1.2mm, the diameter of the copper-carbon microspheres is 0.7mm, the number of the iron-aluminum microspheres is 4000, and the number of the copper-carbon microspheres is 1500.
The use method of the iron-carbon micro-electrolysis material X2 comprises the following steps:
immersing the iron-carbon micro-electrolysis material X2 in wastewater to be treated under the aeration condition, and keeping the volume ratio of gas to water at 2.5:1 for 500 min.
Example 3
The iron-carbon micro-electrolysis material X3 is prepared by fusing a plurality of iron-aluminum microspheres and copper-carbon microspheres on the basis of a mixture of expanded perlite, expanded mica stone, expanded vermiculite and kaolin, wherein the iron-aluminum microspheres comprise iron powder, aluminum slag and a surfactant, and the copper-carbon microspheres comprise activated carbon powder and copper scraps.
69 parts of iron powder, 5 parts of aluminum slag, 5 parts of surfactant, 6 parts of expanded mica stone, 10 parts of expanded perlite, 5 parts of expanded vermiculite, 9 parts of kaolin, 21 parts of activated carbon powder and 4 parts of copper scraps in the iron-carbon micro-electrolysis material X3; wherein the expanded micanite is 200 meshes, the expanded perlite is 90 meshes, the vermiculite is 100 meshes, the iron powder and the activated carbon powder are 150 meshes, and the diameters of the aluminum slag and the copper scraps are 0.3 mm; the diameter of the iron-aluminum microspheres is 0.8mm, the diameter of the copper-carbon microspheres is 1.2mm, the number of the iron-aluminum microspheres is 6000, and the number of the copper-carbon microspheres is 1800.
The use method of the iron-carbon micro-electrolysis material X3 comprises the following steps:
immersing the iron-carbon micro-electrolysis material X3 in wastewater to be treated under the aeration condition, and keeping the volume ratio of gas to water at 2:1 for 400 min.
Example 4
The iron-carbon micro-electrolysis material X4 is prepared by fusing a plurality of iron-aluminum microspheres and copper-carbon microspheres on the basis of a mixture of expanded perlite, expanded mica stone, expanded vermiculite and kaolin, wherein the iron-aluminum microspheres comprise iron powder, aluminum slag and a surfactant, and the copper-carbon microspheres comprise activated carbon powder and copper scraps.
68.5 parts of iron powder, 4.5 parts of aluminum slag, 6.5 parts of surfactant, 5.5 parts of expanded mica, 9.5 parts of expanded perlite, 4.5 parts of expanded vermiculite, 9 parts of kaolin, 19 parts of activated carbon powder and 4.5 parts of copper scraps in the iron-carbon micro-electrolysis material X4; wherein the expanded micanite is 200 meshes, the expanded perlite is 120 meshes, the expanded vermiculite is 80 meshes, the diameter of the aluminum slag is 0.5mm, the diameter of the copper scraps is 0.3mm, the activated carbon powder is 150 meshes, and the iron powder is 120 meshes; the diameter of the iron-aluminum microspheres is 1.2mm, the number of the iron-aluminum microspheres is 8000, the diameter of the copper-carbon microspheres is 0.7mm, and the number of the copper-carbon microspheres is 2000
The use method of the iron-carbon micro-electrolysis material X4 comprises the following steps:
immersing the iron-carbon micro-electrolysis material X4 in wastewater to be treated under the aeration condition, and keeping the volume ratio of gas to water at 2:1 for 400 min.
Example 5
The iron-carbon micro-electrolysis material X5 is prepared by fusing a plurality of iron-aluminum microspheres and copper-carbon microspheres on the basis of a mixture of expanded perlite, expanded mica stone, expanded vermiculite and kaolin, wherein the iron-aluminum microspheres comprise iron powder, aluminum slag and a surfactant, and the copper-carbon microspheres comprise activated carbon powder and copper scraps.
69 parts of iron powder, 7 parts of aluminum slag, 7 parts of surfactant, 6 parts of expanded mica stone, 11 parts of expanded perlite, 5 parts of expanded vermiculite, 7 parts of kaolin, 18 parts of activated carbon powder and 6 parts of copper scraps in the iron-carbon micro-electrolysis material X5; wherein the expanded micanite is 150 meshes, the expanded perlite is 120 meshes, the expanded vermiculite is 100 meshes, the diameter of the aluminum slag is 0.2mm, the copper scrap is 0.3mm, the activated carbon powder is 180 meshes, and the iron powder is 150 meshes; the diameter of the iron-aluminum microspheres is 1.1mm, the number of the iron-aluminum microspheres is 7500, the diameter of the copper-carbon microspheres is 1.0mm, and the number of the copper-carbon microspheres is 2200.
The use method of the iron-carbon micro-electrolysis material X5 comprises the following steps:
immersing the iron-carbon micro-electrolysis material X5 in wastewater to be treated under the aeration condition, and keeping the volume ratio of gas to water at 2:1 for 400 min.
Example 6
The iron-carbon micro-electrolysis material X6 is prepared by fusing a plurality of iron-aluminum microspheres and copper-carbon microspheres on the basis of a mixture of expanded perlite, expanded mica stone, expanded vermiculite and kaolin, wherein the iron-aluminum microspheres comprise iron powder, aluminum slag and a surfactant, and the copper-carbon microspheres comprise activated carbon powder and copper scraps.
67 parts of iron powder, 5 parts of aluminum slag, 6.5 parts of surfactant, 5.5 parts of expanded mica, 11 parts of expanded perlite, 4.5 parts of expanded vermiculite, 6.5 parts of kaolin, 25 parts of activated carbon powder and 7 parts of copper scraps in the iron-carbon micro-electrolysis material X6; wherein the expanded micanite is 150 meshes, the expanded perlite is 120 meshes, the vermiculite is 80 meshes, the iron powder is 150 meshes, the diameter of the aluminum slag is 0.2mm, the active carbon powder is 180 meshes, and the diameter of the copper scraps is 0.4 mm; the diameter of the iron-aluminum microspheres is 0.85mm, the number of the iron-aluminum microspheres is 7400, the diameter of the copper-aluminum microspheres is 0.6mm, and the number of the copper-aluminum microspheres is 2300
The use method of the iron-carbon micro-electrolysis material X6 comprises the following steps:
immersing the iron-carbon micro-electrolysis material X6 in wastewater to be treated under the aeration condition, and keeping the volume ratio of gas to water at 2:1 for 400 min. To more fully illustrate the iron-carbon microelectrolytic filler of the present invention and its method of use, its effectiveness will be verified experimentally.
Examples of the experiments
Description of the experiment: the method takes domestic sewage of a certain cell as a detection object, uses the iron-carbon micro-electrolysis materials X1-X3 of the embodiment of the invention as a treating agent for treatment, and selects the micro-electrolysis material Y1 formed by directly mixing and calcining all components as a contrast treating agent. The micro-electrolysis material Y1 comprises 67 parts of iron powder, 3 parts of aluminum slag, 4 parts of stearic acid, 7 parts of expanded mica, 7 parts of expanded perlite, 3 parts of expanded vermiculite, 5 parts of kaolin, 15 parts of activated carbon powder and 9 parts of copper scraps.
The experimental steps are as follows: in 4 volumes of 0.5m3Respectively charged in a total amount of 0.1m in a cubic reactor3The method comprises the following steps of adding 200L of domestic sewage into iron-carbon micro-electrolysis fillers X1, X2, X3 and Y1, aerating, keeping the volume ratio of gas to water at 2:1, and detecting the cell potential difference, the contact ratio of the fillers and pollutants, the COD removal rate and the ammonia nitrogen removal rate of each micro-electrolysis filler after 1 hour.
The experimental results are as follows: specifically, the following table 1 shows.
Table 1: comparison of sewage cleanliness
According to table 1, compared with the microelectrolysis filler Y1 which has the same components as X1 and is not provided with the positive and negative electrode microspheres, the microelectrolysis filler X1-X3 adopting the layered structure has significant advantages in the aspects of both the generated potential difference and the contact proportion with pollutants, and is also obviously superior to the microelectrolysis filler Y1 in the aspect of removal rate of COD and ammonia nitrogen.
In summary, the invention has the following beneficial effects:
1. the iron-carbon micro-electrolysis filler is immersed in wastewater, and has the advantages of active electron movement, small interference of mutual movement of electrons, large potential difference, high electrolysis efficiency and the like, wherein the potential difference can reach over 1.75 after the filler is immersed in the wastewater for 1 hour.
2. The iron-carbon micro-electrolysis filler has moderate pore diameter, the porosity can reach more than 94 percent, the contact proportion of the surface and the wastewater is high, the waste removing effect of the electrolysis reaction is good, and the treatment effect reaches the treatment standard of the intelligent green ecological city.
3. The iron-carbon micro-electrolysis material is prepared by mixing the positive and negative electrode microspheres based on the mixture of mineral powder and sintering, and has the advantages of no hardening and low passivation rate.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (5)
1. The iron-carbon micro-electrolysis material is characterized by being prepared by mixing 4000-8000 iron-aluminum microspheres and 1500-2200 copper-carbon microspheres based on mixed mineral substances, wherein the iron-aluminum microspheres comprise iron powder, aluminum slag and a surfactant, the copper-carbon microspheres comprise activated carbon powder and copper scraps, and the mixed mineral substances comprise expanded perlite, expanded micanite, expanded vermiculite and kaolin; the diameter of the iron-aluminum microsphere is 0.5-1.2 mm, and the diameter of the copper-carbon microsphere is 0.5-1.2 mm;
wherein the expanded micaceous stone is 120-200 meshes, the expanded perlite is 90-150 meshes, and the expanded vermiculite is 80-100 meshes;
in the iron-aluminum microspheres, 67-70 parts of iron powder, 3-11 parts of aluminum slag and 4-8 parts of surfactant are used; in the copper-carbon microspheres, 15-27 parts of activated carbon powder and 3-9 parts of copper scraps are added; in the mixed mineral, 8-12 parts of expanded perlite, 5-7 parts of expanded mica stone, 3-6 parts of expanded vermiculite and 5-11 parts of kaolin are used;
the surfactant is one or more of stearic acid, sodium dodecyl benzene sulfonate, fatty glyceride and polysorbate.
2. The iron-carbon microelectrolytic material according to claim 1,
the iron powder and the activated carbon powder are 120-180 meshes, and the diameters of the aluminum slag and the copper scraps are 0.1-0.5 mm.
3. The iron-carbon microelectrolytic material according to claim 1,
the expanded micaceous stone is 200 meshes, the expanded perlite is 150 meshes, and the expanded vermiculite is 100 meshes.
4. The use of the iron-carbon microelectrolytic material according to any one of claims 1 to 3, characterized in that,
immersing the iron-carbon micro-electrolysis material in wastewater to be treated under the aeration condition, and keeping the volume ratio of gas to water at 1.5-2.5: 1 for 300-500 min.
5. Use according to claim 4,
the volume ratio of the gas to the water is 2:1, and the treatment time is 400 min.
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| CN105110427A (en) * | 2015-09-30 | 2015-12-02 | 王磊 | Composite micro-electrolysis filler as well as preparation method and application thereof |
| CN106745537A (en) * | 2017-01-05 | 2017-05-31 | 长沙汇聚环境技术有限公司 | A kind of compound micro-electrolysis stuffing for refractory wastewater and preparation method thereof |
| CN107777759A (en) * | 2016-08-31 | 2018-03-09 | 江苏三和环保集团有限公司 | A kind of micro-electrolysis stuffing and preparation method thereof |
| CN108609694A (en) * | 2018-04-03 | 2018-10-02 | 浙江师范大学 | The preparation method of iron-carbon micro-electrolysis filler |
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| CN105110427A (en) * | 2015-09-30 | 2015-12-02 | 王磊 | Composite micro-electrolysis filler as well as preparation method and application thereof |
| CN107777759A (en) * | 2016-08-31 | 2018-03-09 | 江苏三和环保集团有限公司 | A kind of micro-electrolysis stuffing and preparation method thereof |
| CN106745537A (en) * | 2017-01-05 | 2017-05-31 | 长沙汇聚环境技术有限公司 | A kind of compound micro-electrolysis stuffing for refractory wastewater and preparation method thereof |
| CN108609694A (en) * | 2018-04-03 | 2018-10-02 | 浙江师范大学 | The preparation method of iron-carbon micro-electrolysis filler |
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