CN115259472A - Phosphorus purification treatment process for concrete - Google Patents
Phosphorus purification treatment process for concrete Download PDFInfo
- Publication number
- CN115259472A CN115259472A CN202210995080.3A CN202210995080A CN115259472A CN 115259472 A CN115259472 A CN 115259472A CN 202210995080 A CN202210995080 A CN 202210995080A CN 115259472 A CN115259472 A CN 115259472A
- Authority
- CN
- China
- Prior art keywords
- concrete
- phosphorus
- treatment process
- layer
- purification treatment
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F2101/105—Phosphorus compounds
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00793—Uses not provided for elsewhere in C04B2111/00 as filters or diaphragms
Abstract
The application relates to the technical field of sewage phosphorus purification treatment, and particularly discloses a phosphorus purification treatment process for concrete, which comprises the following steps: 1) Primary purification: passing the polluted water through a coarse particle layer, and performing primary filtration through the coarse particle layer to obtain primary purified water; 2) Intermediate purification: the primary purified water in the step 1) passes through a concrete granular layer, and is subjected to secondary filtration and adsorption through the fine granular layer in the concrete to obtain intermediate purified water; 3) Final purification: allowing the intermediate-grade purified water in the step 2) to flow to a zeolite layer through the fine particle layer, and finally obtaining the dephosphorization purified water; the concrete granule layer comprises the following raw materials: cement, aggregate, cementing agent, red mud and water; the phosphorus purification treatment process for the concrete has high phosphorus removal rate.
Description
Technical Field
The application relates to the technical field of sewage phosphorus purification treatment, in particular to a phosphorus purification treatment process for concrete.
Background
The ecological concrete, cast-in-situ planting ecological concrete (large aggregate non-sand concrete) is a new ecological concrete slope protection technology for controlling and protecting side slopes of hydraulic engineering (such as waterfront zones, river channels, dams, reservoirs and the like) and considering environmental factors. The porous concrete is prepared by mixing continuous grain-sized coarse aggregate, a certain amount of fine aggregate and an ecological cementing material according to a certain proportion range (the fine aggregate is not needed if necessary), then stirring, pouring and naturally curing, and then the porous concrete with a surface in a popcorn sugar shape and a large number of communicated and dense pores is obtained.
In view of the above-mentioned related arts, the inventor believes that although the porous structure and the large specific surface area of the ecological concrete are also used in the field of water quality purification such as treatment of domestic sewage, source water, seawater and non-point source pollution control, when applied to water quality purification, the ecological concrete has a poor effect of phosphorus adsorption purification treatment.
Disclosure of Invention
In order to improve the phosphorus purification effect of concrete on water quality, the application provides a phosphorus purification treatment process of concrete.
The application provides a phosphorus purification treatment process of concrete, adopts following technical scheme:
a phosphorus purification treatment process for concrete comprises the following steps:
1) Primary purification: passing the polluted water through a coarse particle layer, and performing primary filtration through the coarse particle layer to obtain primary purified water;
2) Intermediate purification: the primary purified water in the step 1) passes through a concrete granular layer, and is subjected to secondary filtration and adsorption through a granular layer in the concrete to obtain intermediate purified water;
3) Final purification: the middle-grade purified water in the step 2) flows to the zeolite layer through the fine particle layer, and finally the dephosphorized purified water is obtained; the concrete granular layer comprises the following raw materials: cement, aggregate, cementing agent, red mud and water.
By adopting the technical scheme, the three process steps of primary purification, intermediate purification and final purification are adopted in the method for treating the polluted water, firstly, phosphorus is physically adsorbed on the surface of each layer, and then, chemical adsorption is carried out to form a part of the layer, so that the phosphorus content of the finally obtained phosphorus removal purified water is reduced, and the phosphorus purification effect of concrete on water quality is improved; the concrete particle layer can effectively absorb and treat phosphorus in polluted water, the selected red mud contains a large amount of Ca, al, fe and other elements, and the metal elements are combined with the phosphorus to generate precipitates, so that phosphorus is removed from a water body, the phosphorus content in the water is reduced, and the phosphorus purification effect of the concrete on water quality is improved.
Preferably, the concrete granule layer comprises the following raw materials in parts by weight: 30-45 parts of cement, 100-140 parts of aggregate, 3-4.5 parts of cementing agent, 10-30 parts of red mud and 20-40 parts of water.
By adopting the technical scheme, the ratio of the raw materials of the concrete particle layer is optimized, so that the adsorption capacity of the concrete particle layer in step 2) to phosphorus in water is improved, the total phosphorus content in the dephosphorization water is reduced, and the dephosphorization rate is improved.
Preferably, the preparation method of the red mud comprises the following steps: the red mud is naturally dried and ground until the particle size is 10-20 meshes.
By adopting the technical scheme, the red mud is subjected to air drying treatment and then ground, and when the particle size of the red mud is in the range, the total phosphorus content in the dephosphorization purified water obtained after final treatment is lower and the dephosphorization rate is higher.
Preferably, the cement is a high strength portland cement with a grade no less than 42.5.
Preferably, the coarse particle layer in the step 1) is formed by crushing waste ceramsite and sieving the crushed waste ceramsite to particles with the size of 1-1.5 mm.
By adopting the technical scheme, because the particle size of the waste ceramsite in the coarse particle layer is limited, when the polluted water flows through the coarse particle layer, the polluted water has a preliminary adsorption effect on phosphorus in the water.
Preferably, the aggregate comprises the following raw materials in parts by weight: 40-60 parts of broken stone, 20-35 parts of activated carbon particles and 10-15 parts of river sand.
Through adopting above-mentioned technical scheme, aggregate in this application concrete grained layer by, rubble, activated carbon particle and river sand are mixed according to a certain proportion and are made, and the infiltration capacity of concrete grained layer has been guaranteed to the aggregate, has increased the area of contact of primary purified water with the concrete grained layer, makes wherein phosphorus can be fully absorbed.
Preferably, the fine granular layer is prepared by mixing waste ceramsite and iron-aluminum mud; the mass ratio of the waste ceramsite to the iron-aluminum mud is 5:1-2.5.
By adopting the technical scheme, the fine granular layer is prepared from waste ceramsite and ironMixing aluminum mud to form active Al 2 O 3 Pore structure, active Al 2 O 3 Physical adsorption and chemical adsorption exist simultaneously for adsorbing phosphate radical, and active Al 2 O 3 Because the migration of protons generates a hydroxylated surface, phosphate can be adsorbed on the surface of activated alumina under the action of electrostatic attraction and carries out ion exchange with hydroxyl on the surface of the activated alumina to generate aluminum phosphate precipitate, thereby improving the phosphorus removal rate.
Preferably, the zeolite layer raw material is Na-type clinoptilolite obtained by crushing clinoptilolite until the average particle size of particles is 1mm, ball-milling, putting the ball-milled clinoptilolite in a sodium chloride solution with the concentration of 0.8-1mol/L according to the ratio of 1-1.5g/50mL of solid-to-liquid ratio, heating in a water bath at 70-75 ℃ for 3-4h, and drying.
By adopting the technical scheme, the zeolite layer forms more mesoporous structures by modifying clinoptilolite, so that the adsorption effect on phosphorus elements and other ions in water is improved.
In summary, the present application has the following beneficial effects:
1. the method adopts three process steps of primary purification, intermediate purification and final purification to treat the polluted water, firstly, phosphorus is physically adsorbed on the surface of each layer, and then, chemical adsorption is carried out to form a part of the layer, so that the phosphorus content of the finally obtained dephosphorization and purification water is reduced, and the phosphorus purification effect of concrete on water quality is improved; the concrete particle layer can effectively absorb and treat phosphorus in polluted water, the selected red mud contains a large amount of Ca, al, fe and other elements, and the metal elements are combined with the phosphorus to generate precipitates, so that phosphorus is removed from a water body, the phosphorus content in the water is reduced, and the phosphorus purification effect of the concrete on water quality is improved.
2. According to the phosphorus purification treatment process for the concrete, the phosphorus removal rate can reach 76.5% at most by detecting the phosphorus removal purified water obtained after treatment.
Detailed Description
The present application will be described in further detail with reference to examples.
Raw materials
The raw materials used in the application are all common commercial materials.
Preparation example
Preparation examples 1 to 3
A concrete granule layer of preparation examples 1 to 3, the raw materials and the amounts of the raw materials being shown in Table 1, was prepared by the following steps: and mixing the cement, the aggregate, the cementing agent, the red mud and the water, and uniformly stirring to obtain the concrete granular layer.
Wherein the particle size of the red mud is 10 meshes, and the aggregate comprises 50kg of broken stone, 30kg of active carbon particles and 10kg of river sand.
TABLE 1 raw materials and amounts (kg) of the raw materials for concrete granule layers of preparation examples 1 to 3
| Preparation example 1 | Preparation example 2 | Preparation example 3 | |
| Cement | 30 | 40 | 45 |
| Aggregate material | 140 | 120 | 100 |
| Cementing agent | 3 | 4 | 4.5 |
| Red mud | 10 | 10 | 10 |
| Water (W) | 40 | 30 | 20 |
Preparation example 4
A concrete particle layer was different from preparation example 2 in that the amount of red mud added was 20kg, and the remaining steps were the same as in preparation example 2.
Preparation example 5
A concrete particle layer is different from preparation example 2 in that the addition amount of red mud is 30kg, and the rest steps are the same as those in preparation example 2.
Preparation example 6
The difference between the concrete particle layer and the preparation example 4 is that the particle size of the red mud is 16 meshes, and the rest steps are the same as those in the preparation example 4.
Preparation example 7
The difference between the concrete particle layer and the preparation example 4 is that the particle size of the red mud is 20 meshes, and the rest steps are the same as those in the preparation example 4.
Examples
The phosphorus purification treatment process for concrete of embodiment 1 includes the following steps:
1) Primary purification: the polluted water passes through a coarse particle layer which is waste ceramsite crushed to 1mm, primary filtration is carried out on the waste ceramsite through the coarse particle layer to obtain primary purified water, and then the primary purified water flows to a concrete particle layer;
2) Intermediate purification: the primary purified water in the step 1) passes through a concrete granular layer, and is subjected to secondary filtration and adsorption by a granular layer in fine concrete to obtain intermediate purified water, and then the intermediate purified water flows to the fine granular layer;
3) Final purification: the intermediate-grade purified water in the step 2) flows to the zeolite layer through the fine particle layer, and finally the dephosphorization purified water is obtained.
Wherein the concrete granule layer was from preparation example 1; the fine granular layer is prepared from waste ceramsite and iron-aluminum mud according to the weight ratio of 5:1 in a mass ratio; the zeolite layer raw material is Na-type clinoptilolite obtained by crushing clinoptilolite until the average particle size of particles is 1mm, ball-milling, putting the clinoptilolite after ball-milling into a sodium chloride solution with the concentration of 0.8mol/L according to the proportion of 1.5g/50mL of solid-to-liquid ratio, heating in water bath for 3h at 75 ℃, and drying.
Example 2
A phosphorus purification treatment process for concrete, which is different from that of example 1 in that a concrete granule layer is prepared from preparation example 2, and the rest of the steps are the same as those of example 1.
Example 3
A phosphorus purification treatment process for concrete is different from that of example 1 in that a concrete particle layer is prepared from preparation example 3, and the rest steps are the same as those of example 1.
Example 4
A phosphorus purification treatment process for concrete, which is different from the process of example 2 in that a concrete granule layer is prepared from preparation example 4, and the rest of the steps are the same as the process of example 2.
Example 5
A phosphorus purification treatment process for concrete, which is different from the process of example 2 in that a concrete granule layer is prepared from preparation example 5, and the rest of the steps are the same as the process of example 2.
Example 6
A phosphorus purification treatment process for concrete is different from that of example 4 in that a concrete particle layer is obtained from preparation example 6, and the rest steps are the same as those of example 4.
Example 7
A phosphorus purification treatment process for concrete is different from that of example 4 in that a concrete particle layer is obtained from preparation example 7, and the rest steps are the same as those of example 4.
Example 8
A phosphorus purification treatment process for concrete is different from that of the embodiment 6 in that a coarse particle layer is waste ceramsite crushed to 1.5mm, and the rest steps are the same as those of the embodiment 6.
Example 9
A phosphorus purification treatment process for concrete is different from that in embodiment 6 in that a fine particle layer is prepared from waste ceramsite and iron-aluminum mud according to the weight ratio of 5:1.5, and the rest steps are the same as example 6.
Example 10
A phosphorus purification treatment process of concrete is different from that of embodiment 6 in that a fine particle layer is prepared from waste ceramsite and iron-aluminum mud according to the proportion of (5): 2.5, and the rest steps are the same as example 6.
Comparative example
Comparative example 1
The phosphorus purification treatment process of the concrete is different from that of the example 1 in that red mud is not added into a concrete particle layer, and the rest steps are the same as those of the example 1.
Comparative example 2
The phosphorus purification treatment process of the concrete is different from that of the example 1 in that the addition amount of the red mud in a concrete particle layer is 5kg, and the rest steps are the same as those of the example 1.
Comparative example 3
The phosphorus purification treatment process of the concrete is different from that of the embodiment 1 in that the addition amount of the red mud in a concrete particle layer is 45kg, and the rest steps are the same as those of the embodiment 1.
Comparative example 4
A phosphorus purification treatment process for concrete is different from that of embodiment 1 in that a fine particle layer is prepared from waste ceramsite and iron-aluminum mud according to the weight ratio of 1:1, and the rest steps are the same as those of the example 1.
Comparative example 5
A phosphorus purification treatment process for concrete is different from that of embodiment 1 in that a fine particle layer is prepared from waste ceramsite and iron-aluminum mud according to the weight ratio of 1:5, and the rest steps are the same as those of the example 1.
Performance test
Detection method/test method
The performance of the contaminated water in the phosphorus purification treatment process of the concrete of examples 1 to 10 and comparative examples 1 to 5 was measured by the following method, and the measurement results are shown in table 2 below.
And phosphorus removal rate: measuring the total phosphorus content of the polluted water before treatment by adopting the same batch of polluted water source, then treating the batch of water by adopting the phosphorus purification treatment processes in the embodiments 1-10 and the comparative examples 1-5 respectively, measuring the total phosphorus content in the final phosphorus removal purified water, and then calculating the phosphorus removal rate;
phosphorus removal rate = (total phosphorus content before polluted water treatment-total phosphorus content in phosphorus removal purified water)/total phosphorus content before polluted water treatment x 100%.
The total phosphorus content before the treatment of the polluted water is detected to be 1.36mg/L.
Dephosphorizing and purifying the pH value of water: and taking the finally obtained dephosphorization clear water, and measuring the pH value of the dephosphorization clear water.
TABLE 2 examination results of examples 1 to 10 and comparative examples 1 to 5
| Total phosphorus content (mg/L) in dephosphorization water | Phosphorus removal Rate (%) | pH value | |
| Example 1 | 0.51 | 62.5％ | 11.52 |
| Example 2 | 0.47 | 65.4％ | 11.64 |
| Example 3 | 0.49 | 63.9％ | 11.55 |
| Example 4 | 0.41 | 69.9％ | 11.75 |
| Example 5 | 0.44 | 67.6％ | 11.69 |
| Example 6 | 0.34 | 75.0％ | 11.82 |
| Example 7 | 0.37 | 72.8％ | 11.78 |
| Example 8 | 0.38 | 72.1％ | 11.76 |
| Example 9 | 0.32 | 76.5％ | 11.80 |
| Example 10 | 0.34 | 75.0％ | 11.81 |
| Comparative example 1 | 0.98 | 27.9％ | 7.99 |
| Comparative example 2 | 0.78 | 42.6％ | 10.56 |
| Comparative example 3 | 0.72 | 47.1％ | 10.68 |
| Comparative example 4 | 0.65 | 52.2％ | 10.79 |
| Comparative example 5 | 0.69 | 49.3％ | 10.72 |
The detection data of the embodiments 1 to 3 show that the concrete particle layer of the preparation example 2 has a relatively good proportion, and when the concrete particle layer of the preparation example 2 is used in a phosphorus purification treatment process of concrete, the treated phosphorus-removing purified water has a relatively low total phosphorus content and a relatively high phosphorus removal rate.
By combining the detection data of the example 2 and the examples 4 to 5, it can be seen that the total phosphorus content in the purified phosphorus removal water treated in the example 4 is low, and the phosphorus removal rate is high, which indicates that the amount of the red mud has an influence on the phosphorus removal effect when the concrete particle layer is prepared, and when the addition amount of the red mud is 20kg, the total phosphorus content in the purified phosphorus removal water treated is low, the phosphorus removal rate is 69.9%, and the pH value is 11.75.
By combining the detection data of the example 4 and the examples 6 to 7, it can be seen that the total phosphorus content in the purified phosphorus removal water treated in the example 6 is low, and the phosphorus removal rate is high, which indicates that the particle size of the red mud has an influence on the phosphorus removal effect when the concrete particle layer is prepared, and when the particle size of the red mud is 16 meshes, the total phosphorus content in the purified phosphorus removal water treated is low, the phosphorus removal rate is 75.0%, and the pH value is 11.82. And the detection data of the embodiment 8 show that the waste ceramsite with smaller granules is adopted as the coarse granules, so that the total phosphorus content in the dephosphorization water purification can be reduced, and the final dephosphorization rate is higher.
By combining the detection data of the example 6 and the detection data of the examples 9 to 10, it can be seen that the total phosphorus content in the phosphorus removal purified water treated in the example 9 is low, and the phosphorus removal rate is high, which indicates that the fine particle layer is formed by waste ceramsite and iron-aluminum mud according to the ratio of 5: when the phosphorus removal water is prepared by mixing the raw materials according to the mass ratio of 1.5, the total phosphorus content in the phosphorus removal water can be reduced, the final phosphorus removal rate is 76.5%, and the pH value is 11.80.
By combining the detection data of the example 1 and the detection data of the comparative examples 1 to 3, the total phosphorus content in the phosphorus removal purified water is higher and the phosphorus removal rate is greatly reduced when no red mud is added, which indicates that the red mud has a promoting effect on phosphorus removal, and when the red mud content is too low or too high, the phosphorus removal rate is not equal to the addition amount of the red mud used in the application, the removal rate is high after the phosphorus purification treatment process, and similarly indicates that the red mud has a promoting effect on phosphorus removal within a certain addition proportion.
And the detection data of the comparative examples 4-5 are combined, so that the waste ceramsite and the iron-aluminum mud of the fine particle layer in the concrete phosphorus purification treatment process have better quality, the total phosphorus content in the phosphorus-removing purified water is favorably reduced, and the phosphorus-removing rate is improved.
The specific embodiments are only for explaining the present application and are not limiting to the present application, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the claims of the present application.
Claims (8)
1. The phosphorus purification treatment process of the concrete is characterized by comprising the following steps of:
1) Primary purification: passing the polluted water through a coarse particle layer, and performing primary filtration through the coarse particle layer to obtain primary purified water;
2) Intermediate purification: the primary purified water in the step 1) passes through a concrete granular layer, and is subjected to secondary filtration and adsorption through the fine granular layer in the concrete to obtain intermediate purified water;
3) Final purification: the middle-grade purified water in the step 2) flows to the zeolite layer through the fine particle layer, and finally the dephosphorized purified water is obtained;
the concrete granular layer comprises the following raw materials: cement, aggregate, cementing agent, red mud and water.
2. The phosphorus purification treatment process for concrete according to claim 1, characterized in that: the concrete granular layer comprises the following raw materials in parts by weight: 30-45 parts of cement, 100-140 parts of aggregate, 3-4.5 parts of cementing agent, 10-30 parts of red mud and 20-40 parts of water.
3. The phosphorus purification treatment process for concrete according to claim 2, characterized in that: the preparation method of the red mud comprises the following steps: the red mud is naturally dried and ground until the particle size is 10-20 meshes.
4. The phosphorus purification treatment process for concrete according to claim 2, characterized in that: the cement is high-strength portland cement with a grade number not lower than 42.5.
5. The phosphorus purification treatment process of concrete according to claim 1, wherein: the coarse particle layer in the step 1) is formed by crushing and screening waste ceramsite into particles with the size of 1-1.5 mm.
6. The phosphorus purification treatment process for concrete according to claim 1, characterized in that: the aggregate comprises the following raw materials in parts by weight: 40-60 parts of broken stone, 20-35 parts of activated carbon particles and 10-15 parts of river sand.
7. The phosphorus purification treatment process for concrete according to claim 1, characterized in that: the fine granular layer is prepared by mixing waste ceramsite and iron-aluminum mud; the mass ratio of the waste ceramsite to the iron-aluminum mud is 5:1-2.5.
8. The phosphorus purification treatment process of concrete according to claim 1, wherein: the zeolite layer raw material is Na-type clinoptilolite obtained by crushing clinoptilolite until the average particle size of particles is 1mm, ball-milling, putting the clinoptilolite after ball-milling into a sodium chloride solution with the concentration of 0.8-1mol/L according to the proportion of 1-1.5g/50mL of solid-to-liquid ratio, heating for 3-4h in water bath at 70-75 ℃, and drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210995080.3A CN115259472A (en) | 2022-08-18 | 2022-08-18 | Phosphorus purification treatment process for concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210995080.3A CN115259472A (en) | 2022-08-18 | 2022-08-18 | Phosphorus purification treatment process for concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115259472A true CN115259472A (en) | 2022-11-01 |
Family
ID=83752146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210995080.3A Pending CN115259472A (en) | 2022-08-18 | 2022-08-18 | Phosphorus purification treatment process for concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115259472A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016119082A1 (en) * | 2015-10-09 | 2017-04-13 | Infineon Technologies Ag | METHOD FOR THE TREATMENT OF ANY ACID WASTE CONTAINING PHOSPHORIC ACID |
| CN106830832A (en) * | 2017-01-23 | 2017-06-13 | 重庆工商职业学院 | For the macroporous type eco-concrete of sewage disposal |
| CN110683834A (en) * | 2019-11-13 | 2020-01-14 | 武汉理工大学 | Water permeable brick capable of removing various pollutants and preparation method thereof |
| CN111747672A (en) * | 2020-05-13 | 2020-10-09 | 武汉三源特种建材有限责任公司 | Superfine modified phosphorus slag powder and superfine composite admixture for concrete |
| CN111747696A (en) * | 2020-07-09 | 2020-10-09 | 中国科学院武汉岩土力学研究所 | Geopolymer concrete based on household garbage incineration slag and red mud and preparation method thereof |
| CN112250348A (en) * | 2020-11-18 | 2021-01-22 | 同济大学 | Porous red mud asphalt pavement material for purifying runoff pollutants and preparation and application thereof |
-
2022
- 2022-08-18 CN CN202210995080.3A patent/CN115259472A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016119082A1 (en) * | 2015-10-09 | 2017-04-13 | Infineon Technologies Ag | METHOD FOR THE TREATMENT OF ANY ACID WASTE CONTAINING PHOSPHORIC ACID |
| CN106830832A (en) * | 2017-01-23 | 2017-06-13 | 重庆工商职业学院 | For the macroporous type eco-concrete of sewage disposal |
| CN110683834A (en) * | 2019-11-13 | 2020-01-14 | 武汉理工大学 | Water permeable brick capable of removing various pollutants and preparation method thereof |
| CN111747672A (en) * | 2020-05-13 | 2020-10-09 | 武汉三源特种建材有限责任公司 | Superfine modified phosphorus slag powder and superfine composite admixture for concrete |
| CN111747696A (en) * | 2020-07-09 | 2020-10-09 | 中国科学院武汉岩土力学研究所 | Geopolymer concrete based on household garbage incineration slag and red mud and preparation method thereof |
| CN112250348A (en) * | 2020-11-18 | 2021-01-22 | 同济大学 | Porous red mud asphalt pavement material for purifying runoff pollutants and preparation and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1982759B1 (en) | Surface treated calcium carbonate and its use in waste water treatment | |
| CN100408161C (en) | Recipe and prepn process of modified diatomite for treating waste water | |
| US4917802A (en) | Method for treating waste water | |
| CN104556289A (en) | Wastewater purifying agent and preparation method thereof | |
| CN105771881A (en) | Material and method for removing phosphorus in water | |
| US5271848A (en) | Treating of waste water with bauxite to remove phosphates from the waste water | |
| KR100413338B1 (en) | Water processing system and processing material of high adsorption | |
| CN107081122A (en) | The method that dephosphorization agent is prepared using copper water-supply pipe | |
| CN111330536B (en) | Preparation and use methods of anion and cation compound modified activated ore for repairing and treating heavy metal polluted site wastewater | |
| CN110813264A (en) | Lanthanum modified material of hydrated calcium silicate gel and preparation method thereof | |
| CN108996691A (en) | A kind of aluminium sludge compounded mix and preparation method thereof for artificial swamp | |
| SK100098A3 (en) | Process for the manufacture of a sorbent, a sorbent and its use for the immobilization of heavy metals in contaminated aqueous or solid phase | |
| Jeong et al. | Evaluation of foam-glass media in a high-rate filtration process for the removal of particulate matter containing phosphorus in municipal wastewater | |
| Kalló | Wastewater purification in Hungary using natural zeolites | |
| CN113321354B (en) | Treatment method and treatment system for refractory evaporation and condensation waste liquid | |
| CN109231842A (en) | A kind of foamed glass material and preparation method thereof reducing water quality total phosphorus index | |
| CN101402481A (en) | Mesoporous adsorption type aluminum salt composite flocculent synthesis method and uses thereof | |
| CN115259472A (en) | Phosphorus purification treatment process for concrete | |
| CN107892339B (en) | Preparation and application of aquatic product sewage treatment agent | |
| KR100393267B1 (en) | Staircase type waste water disposal system and adsorbent for purification of livestock waste water | |
| CN110615518B (en) | Fenton reaction ferrous iron slow release granule | |
| CN109908860B (en) | Phosphorus adsorbent prepared from water supply plant sludge and application thereof | |
| WO2023200046A1 (en) | Ecological restoration agent using natural mineral lumilite and preparation method therefor | |
| JPH01288335A (en) | Waste water treatment agent | |
| RU2399412C2 (en) | Method of making sorbent for purifying natural and waste water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |