CN114045054A - Mortar coating for sewage treatment and preparation method and application thereof - Google Patents
Mortar coating for sewage treatment and preparation method and application thereof Download PDFInfo
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- CN114045054A CN114045054A CN202111320030.7A CN202111320030A CN114045054A CN 114045054 A CN114045054 A CN 114045054A CN 202111320030 A CN202111320030 A CN 202111320030A CN 114045054 A CN114045054 A CN 114045054A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/06—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement
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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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
Abstract
The invention discloses a mortar coating for sewage treatment and a preparation method and application thereof, belonging to the technical field of sewage treatment materials; a mortar coating for sewage treatment is prepared by uniformly stirring and mixing amorphous alloy fibers, sand, cement and water; the mass ratio of the rubber sand is 1: 3; the amorphous alloy fiber comprises Fe88Zr11B1、Fe88Zr9B1In2、Fe88Zr7B1In4One kind of (1). The preparation method of the mortar coating for sewage treatment comprises the following steps: stirring and mixing the amorphous alloy fiber, the sand and the cement uniformly, adding water, and stirring and forming to obtain the amorphous alloy fiber sand; will be describedThe mortar coating is coated on the surface of the sewage treatment tank, and the coating thickness is 10-20 mm; then curing the mixture at the temperature of 20 +/-2 ℃ and the humidity of 95%. The coating is coated on the surface of the sewage treatment tank, the mortar can solidify the amorphous alloy fibers, contact between the amorphous alloy fibers and air can be reduced, oxidation of the amorphous alloy fibers can be prevented, and the service life of the amorphous alloy fibers is prolonged.
Description
Technical Field
The invention belongs to the technical field of sewage treatment materials, and particularly relates to a mortar coating for sewage treatment as well as a preparation method and application thereof.
Background
The problem of water pollution, which is now becoming more and more severe, has threatened the safety of human beings and has raised significant challenges for human life and health, social and economic development, world peace and stability. The dyeing industry pollutes water most directly, and a large amount of dye waste liquid which is difficult to degrade, high in concentration and high in toxicity and is generated by a factory every day is directly discharged into the environment without being treated, so that the ecological environment and the human health are greatly harmed, and the sustainable development of the society is influenced. Due to the remarkable advantages of high treatment efficiency, no generation of activated sludge, small occupied area, repeated recycling and the like, the catalytic oxidation decomposition of dye wastewater by using the heterogeneous Fenton reagent becomes a focus of attention of scientific researchers more and more. The iron-based amorphous alloy can quickly degrade azo dye wastewater, and the process for decomposing the dye wastewater by catalytic oxidation of the heterogeneous Fenton-like reagent is superior to the conventional Fenton method, overcomes the defects that iron ions are difficult to separate from a reaction system solution and secondary pollution is easily caused, and has higher research prospect and value.
Chinese patent CN102070236B discloses an application of an iron-based amorphous alloy strip for treating printing and dyeing wastewater, wherein the amorphous alloy strip is obtained by adding a small amount of other elements and performing rapid solidification by using a melt-spun device. The non-crystallization of the zero-valent iron is realized by utilizing the pretreatment technology, the color removing capability of iron atoms is reserved, the corrosion consumption of iron in the wastewater treatment process is effectively reduced, the repeated and durable utilization of strips is realized on the premise of ensuring the decoloring rate, the technical and application defects of the traditional technology for treating printing and dyeing wastewater by using reduced iron powder or cast iron scraps are overcome, the non-crystallization technology is a potential application field in the industrial field, and the application prospect is very good. However, the specific surface area of the iron-based amorphous alloy strip is relatively small, and the amorphous alloy strip is easy to wind in the degradation and stirring process, so that the iron-based amorphous alloy strip is not beneficial to recovery and secondary utilization.
Chinese patent CN107445281A discloses an amorphous alloy microgroove net for treating printing and dyeing wastewater and a preparation method thereof, wherein the preparation method comprises the following steps: selecting amorphous alloy components with certain glass forming capacity, and preparing a tough amorphous alloy wire by using a vacuum wire throwing machine; the amorphous alloy wires are woven into a microgroove net through a weaving process. The amorphous alloy microgroove mesh has uniform network pores and a higher active specific surface area, shows excellent printing and dyeing wastewater degradation performance, overcomes the application defects that the traditional amorphous alloy needs to be subjected to filtration treatment, is difficult to recover, is difficult to reutilize and the like in the wastewater treatment process, improves the cycle life and the recovery rate of amorphous alloy degradation, and shows better environmental protection and energy saving performance. However, the method for treating sewage by using the amorphous alloy microgroove net directly puts the amorphous alloy microgroove net into the dye, and the iron-based amorphous alloy is easy to oxidize in the process, short in service life and poor in recycling usability.
Therefore, a new sewage treatment method is needed, which can solve the problem of recycling the degraded dye of the amorphous alloy fiber, prevent the oxidation of the amorphous alloy fiber and prolong the service life of the amorphous alloy fiber.
Disclosure of Invention
Aiming at the defects of the prior art, one of the purposes of the invention is to provide a mortar coating for sewage treatment, amorphous alloy fibers are doped into mortar to prepare the mortar coating with the amorphous alloy fibers, so that the amorphous alloy fibers can be cured and are beneficial to recycling; but also can prevent the oxidation of the amorphous alloy fiber and prolong the service life of the amorphous alloy fiber.
In order to achieve the purpose of the invention, the method is specifically realized by the following technologies:
the mortar coating for sewage treatment is characterized by being prepared by uniformly stirring and mixing amorphous alloy fibers, sand, cement and water, wherein the mass ratio of the cement to the sand is 1: 3;
the amorphous alloy fiber comprises Fe according to atomic mole percentage88Zr11B1、Fe88Zr9B1In2、Fe88Zr7B1In4One kind of (1).
The amorphous alloy fiber is mixed with sand and cement to prepare a mortar coating, so that on one hand, the mortar can play a role in fixing the non-gold alloy fiber, and the problem that the amorphous alloy fiber is not easy to recover is solved; on the other hand, the mortar can prevent the amorphous alloy fiber from being oxidized and prolong the service life of the amorphous alloy fiber; meanwhile, the amorphous alloy fiber can endow the mortar with better plastic shrinkage resistance, and the crack resistance and the corrosion resistance of the mortar coating are improved.
Preferably, the mass ratio of the amorphous alloy fibers to the cement is 0.5-2: 100.
Preferably, the thickness of the mortar coating is 10-20 mm.
Preferably, the sand is ISO standard sand, and the fineness modulus is 2.3-3.0.
The preparation method of the amorphous alloy fiber comprises the following steps:
s1, adding the proportioned alloy raw materials into a smelting furnace, and smelting the alloy raw materials into an alloy ingot by electric arc smelting under a high vacuum condition, wherein the smelting process is repeated for more than 3 times in order to ensure the uniformity of alloy components;
s2, the alloy ingot obtained in the step S1 is heated by magnetic induction in an inert atmosphere to melt the alloy rapidly, and the solution is sprayed to the surface of a roller rotating rapidly through a blowing switch to be thrown into amorphous alloy fibers.
Preferably, the length of the amorphous alloy fiber is 10-30 mm, and the diameter of the amorphous alloy fiber is 1-5 mm.
The invention also aims to provide a preparation method of the mortar coating for sewage treatment, which comprises the following steps: the amorphous alloy fiber, the sand and the cement are stirred and mixed uniformly, and then water is added to be stirred until the amorphous alloy fiber, the sand and the cement are mixed uniformly, so that the amorphous alloy fiber sand-cement mortar is obtained.
Still another object of the present invention is to provide an application of a mortar coating for sewage treatment, which comprises the following steps: and (3) coating the mortar coating on the surface of a sewage treatment tank, wherein the coating thickness is 10-20 mm, and then maintaining for 28 days under the conditions that the temperature is 20 +/-2 ℃ and the humidity is 95%.
Compared with the prior art, the invention has the advantages that:
(1) the amorphous alloy fiber is doped into the mortar to prepare the mortar coating for sewage treatment, and then the mortar coating is coated on the surface of the sewage treatment pool, so that the mortar can play a role in curing the amorphous alloy fiber, is favorable for recycling while degrading sewage, and solves the problem that the amorphous alloy is not easy to recover.
(2) The mortar reduces the contact between the amorphous alloy fiber and air, can prevent the oxidation of the amorphous alloy fiber and prolong the service life of the amorphous alloy fiber.
(3) The amorphous alloy fiber has good bonding property with mortar, and the non-gold alloy fiber can endow the mortar with better plastic shrinkage resistance, improve the crack resistance and corrosion resistance of the mortar coating, and is very suitable for hydraulic structure engineering.
Drawings
FIG. 1 is a schematic structural view of a mortar coating for sewage treatment;
FIG. 2 shows that example 1 contains Fe88Zr11B1The concentration of the repeatedly degraded dye of the mortar coating changes along with time;
FIG. 3 shows that example 2 contains Fe88Zr9B1In2The concentration of the repeatedly degraded dye of the mortar coating changes along with time;
FIG. 4 shows that example 3 contains Fe88Zr7B1In4The concentration of the repeatedly degraded dye of the mortar coating changes along with time;
wherein: 1. a concrete matrix; 2. coating mortar; 3. amorphous alloy fiber.
Detailed Description
The technical solutions of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The concrete matrix of the following examples adopts mortar test blocks, and the mortar mixing ratio is as follows: the water cement ratio is 0.5, the mortar cement ratio is 1:1.25, and the cement adopts PII 42.5; the preparation method comprises the following steps: after the mortar is mixed in proportion, fresh mortar with the height of 50-60 mm is cast in a 70 x 70 cubic die, the fresh mortar is placed on a vibration table for compaction, and then the fresh mortar is solidified for 12 hours at the temperature of 20 +/-5 ℃.
Example 1
The mortar coating for sewage treatment is prepared by uniformly stirring and mixing amorphous alloy fibers, sand, cement and water, wherein the ratio of mortar to mortar is 1: 3; the amorphous alloy fiber comprises 88% of Fe, 11% of Zr and 1% of B in terms of mole percentage;
the preparation method of the amorphous alloy fiber of the embodiment comprises the following steps:
s1, weighing and proportioning raw materials according to the composition of the amorphous alloy, wherein the raw materials are pure metals with the purity of 99.99 percent; adding the proportioned alloy raw materials into a crucible of a smelting furnace, and smelting the alloy raw materials into an alloy ingot by electric arc smelting under the high vacuum condition, wherein the smelting process is repeated for 5 times in order to ensure the uniformity of alloy components;
s2, crushing the alloy ingot obtained in the step S1, and adding the crushed alloy ingot into a quartz tube with a nozzle; under the atmosphere of high-purity argon, the alloy is rapidly melted by adopting magnetic induction heating, and the solution is sprayed onto the surface of a roller wheel which rotates rapidly through a blowing switch, so that the amorphous alloy fiber with the length of 10mm and the diameter of 2mm is thrown.
The preparation method of the mortar coating comprises the following steps: 4.5g of amorphous alloy fiber, 1350g of sand and 450g of cement are sequentially added into a concrete mixer to be uniformly dry-mixed, 225g of water is added to be uniformly mixed, and the mortar coating is obtained. Wherein the cement is PII 42.5 grade cement, the sand adopts ISO standard sand, and the fineness modulus is 2.8; the water cement ratio is 0.5, and the rubber sand ratio is 1: 3.
The application of the mortar coating in the simulated dye sewage of the embodiment comprises the following specific processes:
(1) coating the mortar coating obtained in the embodiment on the top surface of a concrete matrix, wherein the area of the top surface of the concrete matrix is 70 x 70mm, the coating thickness is 20mm, and then putting the sample in a standard curing box for curing for 28 days, wherein the curing temperature is 20 +/-2 ℃, and the relative humidity is 95%;
(2) putting the concrete matrix coated with the mortar coating into a conical flask containing 200mL of 40mg/L rhodamine B solution, wherein the PH of the rhodamine B solution is 2 and H2O2The content was 50 mmol/L. Placing the conical flask into a constant-temperature water bath oscillation box, keeping the temperature at 25 ℃, stirring at the rotating speed of 150r/min, reacting for 2 hours, 4 hours and 6 hours, and then respectively taking 5ml of solution to carry out absorbance test;
(3) and after degradation, taking out the concrete matrix coated with the mortar coating, carrying out secondary degradation after cleaning for 10min by ultrasonic waves, and continuously repeating the degradation experiment shown above for 9 times.
FIG. 2 shows that Fe is contained in the present example88Zr11B1The mortar coating is repeatedly treated for 9 times to obtain a change curve of the concentration of 40mg/L rhodamine B solution along with time, and as can be seen from the graph, the mortar coating can be repeatedly utilized without obvious attenuation of degradation efficiency, and the removal rate of the 9 th time can still reach 70.79%; the mortar coating of this example is effective in preventing oxidation of the non-gold alloy fibers and improving the recyclability thereof.
Example 2
The mortar coating for sewage treatment is prepared by uniformly stirring and mixing amorphous alloy fibers, sand, cement and water, wherein the ratio of mortar to mortar is 1: 3; the amorphous alloy fiber comprises 88% of Fe, 9% of Zr, 1% of B and 2% of In mole percentage;
the preparation method of the amorphous alloy fiber of the embodiment comprises the following steps:
s1, weighing and proportioning raw materials according to the composition of the amorphous alloy, wherein the raw materials are pure metals with the purity of 99.99 percent; adding the proportioned alloy raw materials into a crucible of a smelting furnace, and smelting the alloy raw materials into an alloy ingot by electric arc smelting under the high vacuum condition, wherein the smelting process is repeated for 5 times in order to ensure the uniformity of alloy components;
s2, crushing the alloy ingot obtained in the step S1, and adding the crushed alloy ingot into a quartz tube with a nozzle; under the atmosphere of high-purity argon, the alloy is rapidly melted by adopting magnetic induction heating, and the solution is sprayed onto the surface of a roller wheel which rotates rapidly through a blowing switch, so that the amorphous alloy fiber with the length of 20mm and the diameter of 1mm is thrown.
The preparation method of the mortar coating comprises the following steps: and sequentially adding 3g of amorphous alloy fiber, 900g of sand and 300g of cement into a concrete mixer, uniformly mixing, adding 150g of water, and stirring until uniform mixing to obtain the mortar coating. Wherein the cement is PII 42.5 grade cement, the sand adopts ISO standard sand, and the fineness modulus is 2.5; the water cement ratio is 0.5, and the rubber sand ratio is 1: 3.
The application of the mortar coating in the simulated dye sewage of the embodiment comprises the following specific processes:
(1) coating the mortar coating obtained in the embodiment on the top surface of a concrete matrix, wherein the area of the top surface of the concrete matrix is 70 x 70mm, the coating thickness is 140mm, and then putting the sample in a standard curing box for curing for 28 days, wherein the curing temperature is 20 +/-2 ℃, and the relative humidity is 95%;
(2) putting the concrete matrix coated with the mortar coating into a conical flask containing 200mL of 40mg/L rhodamine B solution, wherein the PH of the rhodamine B solution is 2 and H2O2The content was 50 mmol/L. Placing the conical flask into a constant-temperature water bath oscillation box, keeping the temperature at 25 ℃, stirring at the rotating speed of 150r/min, reacting for 2 hours, 4 hours and 6 hours, and then respectively taking 5ml of solution to carry out absorbance test;
(3) and after degradation, taking out the concrete matrix coated with the mortar coating, carrying out secondary degradation after cleaning for 10min by ultrasonic waves, and continuously repeating the degradation experiment shown above for 9 times.
FIG. 3 shows that Fe is contained in the present example88Zr9B1In2The mortar coating is repeatedly treated for 9 times, and the concentration of the 40mg/L rhodamine B solution changes along with the timeThe curve shows that the mortar coating of the embodiment can be recycled without obvious degradation efficiency attenuation, and the removal rate of the 9 th time can still reach 71.23%; the mortar coating of this example is effective in preventing oxidation of the non-gold alloy fibers and improving the recyclability thereof.
Example 3
The mortar coating for sewage treatment is prepared by uniformly stirring and mixing amorphous alloy fibers, sand, cement and water, wherein the ratio of mortar to mortar is 1: 3; the amorphous alloy fiber comprises 88% of Fe, 7% of Zr, 1% of B and 4% of In mole percentage;
the preparation method of the amorphous alloy fiber of the embodiment comprises the following steps:
s1, weighing and proportioning raw materials according to the composition of the amorphous alloy, wherein the raw materials are pure metals with the purity of 99.99 percent; adding the proportioned alloy raw materials into a crucible of a smelting furnace, and smelting the alloy raw materials into an alloy ingot by electric arc smelting under the high vacuum condition, wherein the smelting process is repeated for 5 times in order to ensure the uniformity of alloy components;
s2, crushing the alloy ingot obtained in the step S1, and adding the crushed alloy ingot into a quartz tube with a nozzle; under the atmosphere of high-purity argon, the alloy is rapidly melted by adopting magnetic induction heating, and the solution is sprayed onto the surface of a roller wheel which rotates rapidly through a blowing switch, so that the amorphous alloy fiber with the length of 20mm and the diameter of 1mm is thrown.
The preparation method of the mortar coating comprises the following steps: 2.25g of amorphous alloy fiber, 1350g of sand and 450g of cement are sequentially added into a concrete mixer to be uniformly dry-mixed, 225g of water is added to be uniformly mixed, and the mortar coating is obtained. Wherein the cement is PII 42.5 grade cement, the sand adopts ISO standard sand, and the fineness modulus is 2.8; the water cement ratio is 0.5, and the rubber sand ratio is 1: 3.
The application of the mortar coating in the simulated dye sewage of the embodiment comprises the following specific processes:
(1) coating the mortar coating obtained in the embodiment on the top surface of a concrete matrix, wherein the area of the top surface of the concrete matrix is 70 x 70mm, the coating thickness is 20mm, and then putting the sample in a standard curing box for curing for 28 days, wherein the curing temperature is 20 +/-2 ℃, and the relative humidity is 95%;
(2) putting the concrete matrix coated with the mortar coating into a conical flask containing 200mL of 40mg/L rhodamine B solution, wherein the PH of the rhodamine B solution is 2 and H2O2The content was 50 mmol/L. Placing the conical flask into a constant-temperature water bath oscillation box, keeping the temperature at 25 ℃, stirring at the rotating speed of 150r/min, reacting for 2 hours, 4 hours and 6 hours, and then respectively taking 5ml of solution to carry out absorbance test;
(3) and after degradation, taking out the concrete matrix coated with the mortar coating, carrying out secondary degradation after cleaning for 10min by ultrasonic waves, and continuously repeating the degradation experiment shown above for 9 times.
FIG. 4 shows that Fe is contained in the present example88Zr7B1In4The mortar coating is repeatedly treated for 9 times to obtain a change curve of the concentration of 40mg/L rhodamine B solution along with time, and as can be seen from the graph, the mortar coating can be repeatedly utilized without obvious attenuation of degradation efficiency, and the removal rate of the 9 th time can still reach 78.82%; the mortar coating of this example is effective in preventing oxidation of the non-gold alloy fibers and improving the recyclability thereof.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The mortar coating for sewage treatment is characterized by being prepared by uniformly stirring and mixing amorphous alloy fibers, sand, cement and water, wherein the mass ratio of the cement to the sand is 1: 3;
the amorphous alloy fiber comprises Fe according to atomic mole percentage88Zr11B1、Fe88Zr9B1In2、Fe88Zr7B1In4One kind of (1).
2. The mortar coating for sewage treatment according to claim 1, wherein the mass ratio of the amorphous alloy fiber to the cement is 0.5-2: 100.
3. The mortar coating for sewage treatment according to claim 1, wherein the mortar coating has a thickness of 10 to 20 mm.
4. The mortar coating for sewage treatment according to claim 1, wherein the fineness modulus of the sand is 2.3-3.0.
5. The mortar coating for sewage treatment according to claim 1, wherein the preparation method of the amorphous alloy fiber comprises the following steps:
s1, adding the proportioned alloy raw materials into a smelting furnace, and smelting the alloy raw materials into an alloy ingot by electric arc smelting under a high vacuum condition, wherein the smelting process is repeated for more than 3 times in order to ensure the uniformity of alloy components;
s2, the alloy ingot obtained in the step S1 is heated by magnetic induction in an inert atmosphere to melt the alloy rapidly, and the solution is sprayed to the surface of a roller rotating rapidly through a blowing switch to be thrown into amorphous alloy fibers.
6. The mortar coating for sewage treatment according to claim 1, wherein the amorphous alloy fiber has a length of 10 to 30mm and a diameter of 1 to 5 mm.
7. The preparation method of the mortar coating for sewage treatment as claimed in any one of claims 1 to 6, wherein the amorphous alloy fiber, the sand and the cement are stirred and mixed uniformly, and then water is added and stirred until the mixture is mixed uniformly to obtain the mortar coating.
8. The mortar coating according to any one of claims 1 to 6 or the mortar coating prepared by the preparation method according to claim 7 is applied to sewage treatment.
9. The use of a mortar coating according to claim 8 in sewage treatment, characterized in that it is applied by: and coating the mortar coating on the surface of a sewage treatment tank, wherein the coating thickness is 10-20 mm, and then maintaining under the conditions that the temperature is 20 +/-2 ℃ and the humidity is 95%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115073070A (en) * | 2022-05-31 | 2022-09-20 | 河海大学 | Preparation method and application of antibacterial mortar coating |
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| US6719902B1 (en) * | 1997-04-25 | 2004-04-13 | The University Of Iowa Research Foundation | Fe(o)-based bioremediation of aquifers contaminated with mixed wastes |
| CN105601193A (en) * | 2016-03-04 | 2016-05-25 | 河海大学 | Amorphous alloy fiber-reinforced concrete and preparation method thereof |
| CN109956586A (en) * | 2018-12-29 | 2019-07-02 | 深圳大学 | A method of heavy metal pollution is handled using amorphous alloy |
| CN111020411A (en) * | 2019-12-11 | 2020-04-17 | 深圳大学 | Amorphous alloy net, preparation method thereof and application thereof in sewage treatment |
| CN113603400A (en) * | 2021-09-30 | 2021-11-05 | 南京益夫新材料科技有限公司 | Machine-sprayed amorphous alloy fiber reinforced plastering mortar and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6719902B1 (en) * | 1997-04-25 | 2004-04-13 | The University Of Iowa Research Foundation | Fe(o)-based bioremediation of aquifers contaminated with mixed wastes |
| CN105601193A (en) * | 2016-03-04 | 2016-05-25 | 河海大学 | Amorphous alloy fiber-reinforced concrete and preparation method thereof |
| CN109956586A (en) * | 2018-12-29 | 2019-07-02 | 深圳大学 | A method of heavy metal pollution is handled using amorphous alloy |
| CN111020411A (en) * | 2019-12-11 | 2020-04-17 | 深圳大学 | Amorphous alloy net, preparation method thereof and application thereof in sewage treatment |
| CN113603400A (en) * | 2021-09-30 | 2021-11-05 | 南京益夫新材料科技有限公司 | Machine-sprayed amorphous alloy fiber reinforced plastering mortar and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115073070A (en) * | 2022-05-31 | 2022-09-20 | 河海大学 | Preparation method and application of antibacterial mortar coating |
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