A water purifier and its preparation method and use method

Abstract

The present invention provides a water purifier and its preparation and use methods, belonging to the technical field of water purification materials. The water purifier provided by the present invention comprises the following raw materials: calcium magnesium silicate mineral, activated carbon, clay mineral, iron oxide, and an inorganic solvent; the mass ratio of the calcium magnesium silicate mineral, activated carbon, clay mineral, and iron oxide is (2-3):(4-5):(1-2):(1-2). In the present invention, the calcium magnesium silicate mineral, activated carbon, clay mineral, and iron oxide can synergistically improve the purification effect of the water purifier. The calcium magnesium silicate mineral removes pollutants from water through adsorption and ion exchange; the activated carbon has a large specific surface area and a well-developed pore structure, which can remove organic matter and odorous substances from water through physical adsorption; the clay mineral has a layered structure, which can remove organic matter and other impurities from water through adsorption and ion exchange; the iron oxide contains a large number of hydroxyl groups on its surface, which removes pollutants from water through precipitation and adsorption.

Description

Technical Field

[0001] The present invention belongs to the technical field of water purification materials, and in particular relates to a water purifier and a preparation method and a use method thereof. Background Art

[0002] Existing treatment methods for refractory wastewater primarily rely on adsorption, a highly efficient and economical water treatment technology. The purifier used is primarily activated carbon, but its purification effectiveness is poor. Therefore, improving the purification effectiveness of purifiers has become a pressing technical challenge in this field. Summary of the Invention

[0003] The present invention aims to provide a water purifier and its preparation method and use method. The water purifier provided by the present invention has excellent purification effect.

[0004] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0005] The present invention provides a water purifier comprising the following raw materials: calcium magnesium silicate mineral, activated carbon, clay mineral, iron oxide and inorganic solvent;

[0006] The mass ratio of the calcium magnesium silicate mineral, activated carbon, clay mineral and iron oxide is (2-3): (4-5): (1-2): (1-2).

[0007] Preferably, the clay mineral includes at least one of kaolin and bentonite.

[0008] Preferably, the particle sizes of the clay mineral, activated carbon and iron oxide are independently 800-1200 mesh.

[0009] Preferably, the particle size of the calcium magnesium silicate mineral is 600-1000 mesh.

[0010] Preferably, the ratio of the total mass of the calcium magnesium silicate mineral, activated carbon, clay mineral and iron oxide to the mass of the inorganic solvent is 1:(0.5~1).

[0011] Preferably, the particle size of the water purifier is 200-300 mesh.

[0012] The present invention also provides a method for preparing the water purifier described in the above technical solution, comprising the following steps:

[0013] Calcium magnesium silicate mineral, activated carbon, clay mineral, iron oxide and inorganic solvent are mixed, granulated and calcined in sequence to obtain a water purifier.

[0014] Preferably, the calcination temperature is 600-800° C., and the calcination time is 20-40 minutes.

[0015] The present invention also provides a method for using the water purifier described in the above technical solution or the water purifier prepared by the preparation method described in the above technical solution, comprising: mixing water to be treated, the water purifier and a flocculant, and then allowing the mixture to settle.

[0016] Preferably, the ratio of the volume of the water to be treated to the mass of the water purifier is 1000 mL: (0.1-20) g.

[0017] The present invention provides a water purifier comprising the following raw materials: calcium magnesium silicate mineral, activated carbon, clay mineral, iron oxide, and an inorganic solvent; the mass ratio of the calcium magnesium silicate mineral, activated carbon, clay mineral, and iron oxide is (2-3):(4-5):(1-2):(1-2). The calcium magnesium silicate mineral, activated carbon, clay mineral, and iron oxide in the present invention can synergistically enhance the purification effect of the water purifier. The calcium magnesium silicate mineral removes pollutants from water through adsorption and ion exchange; the activated carbon has a large specific surface area and a well-developed pore structure, effectively removing organic matter and odorous substances from water through physical adsorption; the clay mineral has a layered structure with a large interlayer distance and the presence of exchangeable cations, enabling it to remove organic matter and other impurities from water through adsorption and ion exchange; and the iron oxide contains a large number of hydroxyl functional groups on its surface, removing pollutants from water through precipitation and adsorption. Experimental results show that the COD of water produced by landfill leachate MBR treated with the water purifier provided by the present invention is 57 mg / L, and the water is transparent and colorless. DETAILED DESCRIPTION

[0018] The present invention provides a water purifier comprising the following raw materials: calcium magnesium silicate mineral, activated carbon, clay mineral, iron oxide and inorganic solvent;

[0019] The mass ratio of the calcium magnesium silicate mineral, activated carbon, clay mineral and iron oxide is (2-3): (4-5): (1-2): (1-2).

[0020] The present invention has no particular limitation on the sources of the raw materials, and commercially available products known to those skilled in the art may be used.

[0021] The raw materials for preparing the water purifier provided by the present invention include calcium magnesium silicate mineral; the particle size of the calcium magnesium silicate mineral is preferably 600-1000 mesh. In the present invention, the calcium magnesium silicate mineral removes pollutants in water through adsorption and ion exchange.

[0022] As an embodiment, the particle size of the calcium magnesium silicate mineral can be 700 mesh, 800 mesh or 900 mesh.

[0023] In the present invention, the chemical composition of the calcium magnesium silicate mineral preferably includes, by mass percentage, O 45-55%, C 20-30%, Si 7-10%, Ca 4-6%, Mg 3-6%, F 0.4-0.7%, Fe 0.1-3% and Al 0.4-7%.

[0024] As an embodiment, the chemical composition of the calcium magnesium silicate mineral can be O53.74%, C 25.74%, Si 9.33%, Ca 5.21%, Mg 4.49%, F 0.66%, Fe 0.2% and Al 0.63% by mass.

[0025] The raw materials for preparing the water purifier provided by the present invention include activated carbon; the activated carbon preferably has a particle size of 800-1200 mesh. In the present invention, the activated carbon has a large specific surface area and a well-developed pore structure, which can effectively remove organic matter and odor substances from water through physical adsorption.

[0026] In the present invention, the particle size of the activated carbon may be 900 mesh, 1000 mesh or 1100 mesh.

[0027] The raw materials for preparing the water purifier provided by the present invention include clay minerals; the clay minerals preferably have a particle size of 800-1200 mesh; the clay minerals preferably include at least one of kaolin and bentonite, with kaolin being more preferred. In the present invention, the clay minerals have a layered structure with large interlayer distances and the presence of exchangeable cations, enabling the removal of organic matter and other impurities from water through adsorption and ion exchange.

[0028] In the present invention, the particle size of the clay mineral may be 900 mesh, 1000 mesh or 1100 mesh.

[0029] The raw materials for preparing the water purifier provided by the present invention include iron oxide; the particle size of the iron oxide is preferably 800-1200 mesh. In the present invention, the iron oxide contains a large number of hydroxyl functional groups on its surface, which removes pollutants in water through precipitation and adsorption.

[0030] In the present invention, the particle size of the iron oxide may be 900 mesh, 1000 mesh or 1100 mesh.

[0031] In the present invention, the mass ratio of the calcium magnesium silicate mineral, activated carbon, clay mineral, and iron oxide is (2-3):(4-5):(1-2):(1-2). Limiting the mass ratio of the calcium magnesium silicate mineral, activated carbon, clay mineral, and iron oxide to the aforementioned range can further enhance the purification effect of the water purifier.

[0032] The raw materials for preparing the water purifier provided by the present invention include an inorganic solvent; the inorganic solvent is preferably water. The mass ratio of the total mass of the calcium magnesium silicate mineral, activated carbon, clay mineral, and iron oxide to the inorganic solvent is preferably 1:(0.5-1). In one embodiment, the mass ratio of the total mass of the calcium magnesium silicate mineral, activated carbon, clay mineral, and iron oxide to the inorganic solvent can be 1:0.6, 1:0.7, 1:0.8, or 1:0.9. In the present invention, the inorganic solvent is used to dissolve the raw materials.

[0033] In the present invention, the particle size of the water purifier is preferably 200-300 mesh.

[0034] In the present invention, calcium magnesium silicate mineral, activated carbon, clay mineral and iron oxide can synergistically improve the purification effect of the water purifier, wherein the calcium magnesium silicate mineral removes pollutants in water through adsorption and ion exchange; the activated carbon has a huge specific surface area and a developed pore structure, and can effectively remove organic matter and odorous substances in water through physical adsorption; the clay mineral has a layered structure with a large interlayer distance and the presence of exchangeable cations, and can remove organic matter and other impurities in water through adsorption and ion exchange; the iron oxide surface contains a large number of hydroxyl functional groups, and removes pollutants in water through precipitation and adsorption.

[0035] The water purifier provided by the present invention has high removal efficiency and stable effect, with COD, chroma and odor removal rates of over 90%; it has fast reaction and precipitation, with both reaction and precipitation times being ≤30min; it is environmentally friendly, uses physical adsorption, contains no chemical products, does not require acid or alkali adjustment, and the product has no secondary pollution risk, produces little sludge, is non-toxic and easy to dispose of; it is safe, is synthesized from inorganic raw materials, is non-toxic and harmless; it is easy to transport and store, and has no risk of explosion; it has universal applicability and is not affected by water quality such as water temperature and pH value, and is suitable for various difficult-to-degrade high-chroma wastewaters such as landfill leachate, membrane concentrate, coking wastewater, printing and dyeing wastewater, hardware surface treatment wastewater, electroplating wastewater and pharmaceutical wastewater.

[0036] The present invention adopts natural or common raw materials, can effectively remove a variety of difficult-to-degrade pollutants in water, and has high adsorption capacity, low use cost, and strong market competitiveness.

[0037] Compared with NF+RO+concentrated liquid evaporation crystallization, the process is greatly simplified. At the same time, the water production rate exceeds 85%, no concentrated liquid is produced, and the treatment cost does not exceed 30 yuan / ton of water, which completely solves the concentrated liquid problem and high cost problem.

[0038] The Fenton process (biochemical + MBR + primary Fenton + secondary Fenton or biochemical + MBR + Fenton + biochemical) must use hazardous chemicals such as strong acids and strong alkalis, and the process control is difficult, resulting in unstable treatment effects. At the same time, it involves hazardous chemicals such as strong acids and strong alkalis, and the storage and management procedures are complicated and the management costs are high. In addition, the treatment process produces a large amount of chemical sludge. If it is managed as hazardous waste, the disposal cost exceeds 1,000 yuan / ton. The present invention is simpler than the Fenton process, does not require acid and alkali adjustment, is not affected by the pH value of the influent, is more stable and reliable, does not involve the storage and management of hazardous chemicals such as strong acids and strong alkalis, does not produce chemical sludge, and has a small amount of sludge and low disposal cost.

[0039] The present invention also provides a method for preparing the water purifier described in the above technical solution, comprising the following steps:

[0040] Calcium magnesium silicate mineral, activated carbon, clay mineral, iron oxide and inorganic solvent are mixed, granulated and calcined in sequence to obtain a water purifier.

[0041] The present invention has no special limitation on the operation of mixing the calcium magnesium silicate mineral, activated carbon, clay mineral, iron oxide and inorganic solvent, and the technical scheme for preparing the mixed material well known to those skilled in the art can be adopted.

[0042] The present invention has no particular limitation on the granulation operation, and any operation well known to those skilled in the art may be used.

[0043] In the present invention, the calcination temperature is preferably 600-800°C, and the calcination time is preferably 20-40 minutes. As an embodiment, the calcination temperature can be 650°C, 700°C, or 750°C, and the calcination time can be 25 minutes, 30 minutes, or 35 minutes.

[0044] After the calcination is completed, the present invention preferably cools and grinds the calcined product in sequence to obtain a water purifier.

[0045] The cooling operation of the present invention can be performed by cooling to below 40° C. using an operation well known to those skilled in the art.

[0046] The present invention has no special limitation on the grinding operation, as long as the particle size of the water purifier is ensured to be within the range of 200-300 meshes.

[0047] The preparation method provided by the invention has simple process and is suitable for industrial production.

[0048] The present invention also provides a method for using the water purifier described in the above technical solution or the water purifier prepared by the preparation method described in the above technical solution, comprising: mixing water to be treated, the water purifier and a flocculant, and then allowing the mixture to settle.

[0049] The present invention has no special limitation on the source of the water to be treated, and the refractory wastewater well known to those skilled in the art can be used.

[0050] In the present invention, the flocculant is preferably a polyacrylamide (PAM) solution; the mass concentration of the polyacrylamide solution is preferably 0.1-0.3%. As an embodiment, the mass concentration of the polyacrylamide solution can be 0.1%, 0.2% or 0.3%.

[0051] In the present invention, the volume ratio of the water to be treated to the mass of the water purifier is preferably 1000 mL:(0.1-20) g; and the volume ratio of the water to be treated to the flocculant is preferably 1000:(1-10). Limiting the volume ratio of the water to be treated to the mass of the water purifier and the volume ratio of the water to be treated to the flocculant within the above ranges can further enhance the purification effect.

[0052] As an embodiment, the volume ratio of the water to be treated and the mass of the water purifier can be 1000mL:1g, 1000mL:2g, 1000mL:3g, 1000mL:4g, 1000mL:5g, 1000mL:6g, 1000mL:7g, 1000mL:8g, 1000mL:9g, 1000mL:10g or 1000mL:15g; the volume ratio of the water to be treated and the flocculant can be 1000:1, 1000:2, 1000:3, 1000:4, 1000:5, 1000:6, 1000:7, 1000:8 or 1000:9.

[0053] In the present invention, the mixing of the water to be treated, the water purifier and the flocculant is preferably performed by first mixing the water to be treated and the water purifier, and then adding the flocculant for second mixing.

[0054] In the present invention, the first mixing time is preferably 20 to 30 minutes; the first mixing is preferably performed under stirring. The present invention has no particular limitation on the temperature of the first mixing, and it can be performed at room temperature. The present invention has no particular limitation on the stirring speed, as long as the mixing is uniform.

[0055] As an embodiment, the first mixing time can be 22 min, 24 min, 26 min or 28 min.

[0056] In the present invention, the second mixing time is preferably 1-2 minutes; the second mixing is preferably performed under stirring. The present invention has no particular limitation on the temperature of the second mixing, and it can be performed at room temperature. The present invention has no particular limitation on the stirring speed, as long as the mixing is uniform.

[0057] As an embodiment, the second mixing time may be 1.5 minutes.

[0058] In the present invention, the settling time is preferably 20 to 30 minutes. The present invention has no particular limitation on the settling temperature, and it can be carried out at room temperature.

[0059] As an embodiment, the settling time may be 22 minutes, 24 minutes, 26 minutes or 28 minutes.

[0060] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0061] Example 1

[0062] The water purifier is composed of the following raw materials: calcium magnesium silicate mineral, activated carbon, clay mineral, iron oxide and inorganic solvent;

[0063] The mass ratio of the calcium magnesium silicate mineral, activated carbon, clay mineral and iron oxide is 3:4:2:1;

[0064] The clay mineral is kaolin;

[0065] The particle size of the calcium magnesium silicate mineral is 800 mesh;

[0066] The chemical composition of the calcium magnesium silicate mineral is O 53.74%, C 25.74%, Si 9.33%, Ca 5.21%, Mg 4.49%, F 0.66%, Fe 0.2% and Al 0.63% in percentage by mass;

[0067] The particle size of the activated carbon is 1000 mesh;

[0068] The particle size of the clay mineral is 1000 mesh;

[0069] The particle size of the iron oxide is 1000 mesh;

[0070] The inorganic solvent is tap water;

[0071] The ratio of the total mass of the calcium magnesium silicate mineral, activated carbon, clay mineral and iron oxide to the mass of the inorganic solvent is 1:1;

[0072] The particle size of the water purifier is 200-300 mesh;

[0073] The preparation method of the water purifier comprises the following steps:

[0074] Put calcium magnesium silicate mineral, activated carbon, clay mineral and iron oxide into a mixing tank, add tap water, mix for 30 minutes, then extrude into granules, then put into a calcining furnace, calcine at 600°C for 30 minutes, then cool to below 40°C, and finally put into a grinder to obtain a water purifier.

[0075] 1000 mL of landfill leachate MBR produced water (COD 1047 mg / L, chroma > 500) was taken, 3 g of the water purifier prepared in Example 1 was added, and the mixture was stirred for 20 min. Then, 1 mL of 0.1% PAM solution was added, and stirring was continued for 1 min. The mixture was allowed to settle for 20 min. The supernatant was taken for detection, and the COD was 57 mg / L, which was transparent and colorless.

[0076] 1000 mL of landfill leachate nanofiltration concentrate (COD 4660 mg / L, chroma >1000) was added to 10 g of the water purifier prepared in Example 1, and the mixture was stirred for 20 min. Then, 1 mL of 0.1% PAM solution was added, and stirring was continued for 1 min. The mixture was allowed to settle for 20 min. The supernatant was taken for testing, and the COD was 85 mg / L, indicating transparency and colorlessness.

[0077] 1000 mL of MBR water produced by leachate from a waste incineration power plant (COD 308 mg / L, chroma > 300) was added to 2 g of the water purifier prepared in Example 1, and the mixture was stirred for 20 min. Then, 1 mL of a 0.1% PAM solution was added, and stirring was continued for 1 min. The mixture was allowed to settle for 20 min, and the supernatant was taken for testing. The COD was 50.6 mg / L, and the mixture was transparent and colorless.

[0078] 1000 mL of coking biochemical wastewater (COD 802 mg / L, chroma >500) was added with 6 g of the water purifier prepared in Example 1, and the mixture was stirred for 20 minutes. Then, 1 mL of a 0.1% PAM solution was added, and the mixture was stirred for 1 minute. The mixture was allowed to settle for 20 minutes. The supernatant was tested, and the COD was 69 mg / L, indicating it was transparent and colorless.

[0079] Comparative Example 1

[0080] On the basis of Example 1, calcium magnesium silicate mineral was omitted and other conditions remained unchanged to obtain a water purifier.

[0081] Take 1000mL of landfill leachate MBR produced water (COD 1047mg / L, chroma>500), add 3g of the water purifier prepared in Comparative Example 1, stir for 20min, then add 1mL of 0.1% PAM solution, continue stirring for 1min, then let it settle for 20min, take the supernatant for detection, COD 700mg / L, chroma 200.

[0082] Comparative Example 2

[0083] On the basis of Example 1, the activated carbon was omitted and other conditions remained unchanged to obtain a water purifier.

[0084] Take 1000mL of landfill leachate MBR produced water (COD 1047mg / L, chroma>500), add 3g of the water purifier prepared in Comparative Example 2, stir for 20min, then add 1mL of 0.1% PAM solution, continue stirring for 1min, then let it settle for 20min, take the supernatant for detection, COD 600mg / L, chroma 150.

[0085] Comparative Example 3

[0086] On the basis of Example 1, clay mineral was omitted and other conditions remained unchanged to obtain a water purifier.

[0087] Take 1000 mL of landfill leachate MBR produced water (COD 1047 mg / L, chroma>500), add 3 g of the water purifier prepared in Comparative Example 3, stir for 20 minutes, then add 1 mL of 0.1% PAM solution, continue stirring for 1 minute, then let it settle for 20 minutes, take the supernatant for detection, COD 400 mg / L, chroma 100.

[0088] Comparative Example 4

[0089] On the basis of Example 1, iron oxide was omitted and other conditions remained unchanged to obtain a water purifier.

[0090] Take 1000 mL of landfill leachate MBR produced water (COD 1047 mg / L, chroma>500), add 3 g of the water purifier prepared in Comparative Example 4, stir for 20 minutes, then add 1 mL of PAM solution with a mass concentration of 0.1%, continue stirring for 1 minute, then let it settle for 20 minutes, take the supernatant for detection, COD 480 mg / L, chroma 180.

[0091] By comparing Example 1 with Comparative Examples 1 to 4, it can be seen that the calcium magnesium silicate mineral, activated carbon, clay mineral and iron oxide of the present invention can synergistically improve the purification effect of the water purifier. Omitting one of them will lead to a significant reduction in the purification effect.

[0092] Comparative Example 5

[0093] NF+RO+concentrated liquid evaporation crystallization

[0094] 1000mL of landfill leachate MBR water (COD 1047mg / L, chroma >500) was taken and treated with NF+RO to produce 40wt% NF and RO concentrate with COD exceeding 4000mg / L. The water production rate was only 60wt%, and the subsequent evaporation and crystallization treatment and disposal fee of the concentrate exceeded 300 yuan / ton.

[0095] Example 2

[0096] The water purifier is composed of the following raw materials: calcium magnesium silicate mineral, activated carbon, clay mineral, iron oxide and inorganic solvent;

[0097] The mass ratio of the calcium magnesium silicate mineral, activated carbon, clay mineral and iron oxide is 2:5:1:2;

[0098] The clay mineral is kaolin;

[0099] The particle size of the calcium magnesium silicate mineral is 1000 mesh;

[0100] The chemical composition of the calcium magnesium silicate mineral is O 53.74%, C 25.74%, Si 9.33%, Ca 5.21%, Mg 4.49%, F 0.66%, Fe 0.2% and Al 0.63% in percentage by mass;

[0101] The particle size of the activated carbon is 1200 mesh;

[0102] The particle size of the clay mineral is 1200 mesh;

[0103] The particle size of the iron oxide is 1200 mesh;

[0104] The inorganic solvent is tap water;

[0105] The ratio of the total mass of the calcium magnesium silicate mineral, activated carbon, clay mineral and iron oxide to the mass of the inorganic solvent is 1:1;

[0106] The particle size of the water purifier is 200-300 mesh;

[0107] The preparation method of the water purifier comprises the following steps:

[0108] Put calcium magnesium silicate mineral, activated carbon, clay mineral and iron oxide into a mixing tank, add tap water, mix for 60 minutes, then extrude into granules, then put into a calcining furnace, calcine at 700°C for 35 minutes, then cool to below 40°C, and finally put into a grinder to obtain a water purifier.

[0109] 1000 mL of landfill leachate MBR produced water (COD 1047 mg / L, chroma > 500) was taken, 3 g of the water purifier prepared in Example 2 was added, and the mixture was stirred for 20 min. Then, 1 mL of 0.1% PAM solution was added, and stirring was continued for 1 min. The mixture was allowed to settle for 20 min. The supernatant was taken for detection, and the COD was 72 mg / L, which was transparent and colorless.

[0110] Example 3

[0111] The water purifier is composed of the following raw materials: calcium magnesium silicate mineral, activated carbon, clay mineral, iron oxide and inorganic solvent;

[0112] The mass ratio of the calcium magnesium silicate mineral, activated carbon, clay mineral and iron oxide is 2.5:4.5:1:2;

[0113] The clay mineral is kaolin;

[0114] The particle size of the calcium magnesium silicate mineral is 900 mesh;

[0115] The chemical composition of the calcium magnesium silicate mineral is O 53.74%, C 25.74%, Si 9.33%, Ca 5.21%, Mg 4.49%, F 0.66%, Fe 0.2% and Al 0.63% in percentage by mass;

[0116] The particle size of the activated carbon is 1100 mesh;

[0117] The particle size of the clay mineral is 1000 mesh;

[0118] The particle size of the iron oxide is 1100 mesh;

[0119] The inorganic solvent is tap water;

[0120] The ratio of the total mass of the calcium magnesium silicate mineral, activated carbon, clay mineral and iron oxide to the mass of the inorganic solvent is 1:1;

[0121] The particle size of the water purifier is 200-300 mesh;

[0122] The preparation method of the water purifier comprises the following steps:

[0123] Put calcium magnesium silicate mineral, activated carbon, clay mineral and iron oxide into a mixing tank, add tap water, mix for 40 minutes, then extrude into granules, then put into a calcining furnace, calcine at 750°C for 40 minutes, then cool to below 40°C, and finally put into a grinder to obtain a water purifier.

[0124] 1000 mL of landfill leachate MBR produced water (COD 1047 mg / L, chroma > 500) was taken, 3 g of the water purifier prepared in Example 3 was added, and the mixture was stirred for 20 min. Then, 1 mL of 0.1% PAM solution was added, and stirring was continued for 1 min. The mixture was allowed to settle for 20 min. The supernatant was taken for detection, and the COD was 88 mg / L, which was transparent and colorless.

[0125] It can be seen from the above examples and comparative examples that the water purifier provided by the present invention has excellent purification effect.

[0126] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A water purifier, characterized in that: It is composed of the following raw materials: calcium magnesium silicate mineral, activated carbon, clay mineral, iron oxide and inorganic solvent; The mass ratio of the calcium magnesium silicate mineral, activated carbon, clay mineral and iron oxide is (2-3): (4-5): (1-2): (1-2); The clay mineral is at least one of kaolin and bentonite; The particle sizes of the clay mineral, activated carbon and iron oxide are independently 800-1200 mesh; The particle size of the calcium magnesium silicate mineral is 600-1000 mesh; The chemical composition of the calcium magnesium silicate mineral includes, by mass percentage, O 45-55%, C 20-30%, Si 7-10%, Ca 4-6%, Mg 3-6%, F 0.4-0.7%, Fe 0.1-3% and Al 0.4-7%.

2. The water purifier according to claim 1, characterized in that The mass ratio of the total mass of the calcium magnesium silicate mineral, activated carbon, clay mineral and iron oxide to the mass of the inorganic solvent is 1:(0.5~1).

3. The water purifier according to claim 1, characterized in that The particle size of the water purifier is 200-300 meshes.

4. The method for preparing the water purifier according to any one of claims 1 to 3, characterized in that: The following steps are involved: Calcium magnesium silicate mineral, activated carbon, clay mineral, iron oxide and inorganic solvent are mixed, granulated and calcined in sequence to obtain a water purifier.

5. The preparation method according to claim 4, characterized in that The calcination temperature is 600-800° C., and the calcination time is 20-40 minutes.

6. A method for using the water purifier according to any one of claims 1 to 3 or the water purifier prepared by the preparation method according to claim 4 or 5, characterized in that: include: The water to be treated, water purifier and flocculant are mixed and then allowed to settle.

7. The method of use according to claim 6, characterized in that: The ratio of the volume of the water to be treated to the mass of the water purifier is 1000 mL: (0.1~20) g.