Activated carbon for water purification and preparation method thereof

Abstract

The invention discloses activated carbon for water purification and a preparation method thereof. Raw materials of the additive comprise, by weight, 30-40 parts of raw coal, 5-10 parts of anthracite, 5-10 parts of a composite raw material, 3-5 parts of synthetic resin, 3-5 parts of polyethylene, 1-3 parts of sodium selenite, 5-10 parts of a synergistic compound, 1-3 parts of a pure phosphoric acid solution, 1-3 parts of nano titanium oxide, 1-3 parts of tourmaline powder, 1-3 parts of coal tar, 1-3 parts of a paper pulp black liquor concentrated solution, 1-3 parts of fatty acid amide, 1-3 parts of a binder and 1-3 parts of an activator. The invention relates to the technical field of water treatment. The active carbon for water purification and the preparation method thereof can be suitable for long-term purification treatment of dirt in a water body, and the purposes of long-term water body purification and more sufficient water body purification can be well achieved; the raw coal, the anthracite, the composite raw material, the synergistic compound, the nano titanium oxide and the tourmaline powder are cooperatively used, so that the adsorption effect of the activated carbon is greatly improved, and the long-term use of the water purification activated carbon by people is greatly facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment, in particular to activated carbon for water purification and a preparation method thereof. Background Art

[0002] With the acceleration of the industrialization process, different industries such as battery production, electroplating, mining, metallurgy, and metal processing will produce lead-containing substances. The lead ion form in these environments is stable, which not only poses a threat to aquatic organisms, but also can accumulate to a higher concentration through the enrichment of the food chain and food web in the aquatic ecosystem, and ultimately cause direct or indirect harm to human life and health. At present, the heavy metal elements in water bodies are mainly removed by membrane separation, ion exchange, microbial method and adsorption method. In the field of household water purification, water purifiers with reverse osmosis membranes are usually used to separate heavy metals such as lead ions. However, this type of water purifier requires the use of a booster pump for pressurization to achieve membrane separation of heavy metals, which generates energy consumption and noise. Once the power supply is stopped, the concentration of lead ions in the purified water will increase due to the forward osmosis effect. Therefore, compared with membrane separation, adsorption is more energy-efficient and simpler in design. Activated carbon is a specially treated carbon. Organic raw materials (fruit shells, coal, wood, etc.) are heated under air-tight conditions to reduce non-carbon components (this process is called carbonization), and then react with gas to erode the surface and produce a microporous structure (this process is called activation). Since the activation process is a microscopic process, that is, the surface erosion of a large number of molecular carbides is point erosion, so the surface of activated carbon has countless tiny pores.

[0003] The current activated carbon for water purification has a poor purification effect and is not suitable for long-term purification of relatively dirty water bodies. It cannot achieve the purpose of both long-term water purification and more sufficient water purification. It cannot avoid the situation where the purification function of activated carbon is greatly weakened or fails after long-term use. It cannot achieve the synergistic use of raw coal, anthracite, composite raw materials, synergistic compounds, nano-titanium oxide and tourmaline powder to greatly enhance the adsorption effect of activated carbon, which brings great inconvenience to people's long-term use of activated carbon for water purification. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides an activated carbon for water purification and a preparation method thereof, which solves the problems that the existing activated carbon for water purification has poor purification effect, is not suitable for long-term purification of relatively dirty water bodies, cannot achieve the purpose of both long-term water purification and more sufficient water purification, cannot avoid the situation where the purification function of the activated carbon is greatly weakened or fails after long-term use, and cannot achieve the problem of greatly improving the adsorption effect of the activated carbon by the synergistic use of raw coal, anthracite, composite raw materials, synergistic composites, nano-titanium oxide and tourmaline powder.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the present invention is implemented through the following technical scheme: an activated carbon for water purification, whose raw materials include, by weight: 30-40 parts of raw coal, 5-10 parts of anthracite, 5-10 parts of composite raw materials, 3-5 parts of synthetic resin, 3-5 parts of polyethylene, 1-3 parts of sodium selenite, 5-10 parts of synergistic compound, 1-3 parts of pure phosphoric acid solution, 1-3 parts of nano titanium oxide, 1-3 parts of tourmaline powder, 1-3 parts of coal tar, 1-3 parts of pulp black liquor concentrate, 1-3 parts of fatty amide, 1-3 parts of binder and 1-3 parts of activator.

[0008] Preferably, the raw materials include, by weight: 35 parts of raw coal, 7 parts of anthracite, 7 parts of composite raw materials, 4 parts of synthetic resin, 4 parts of polyethylene, 2 parts of sodium selenite, 7 parts of synergistic compound, 2 parts of pure phosphoric acid solution, 2 parts of nano titanium oxide, 2 parts of tourmaline powder, 2 parts of coal tar, 2 parts of pulp black liquor concentrate, 2 parts of fatty amide, 2 parts of binder and 2 parts of activator.

[0009] Preferably, the raw materials include, by weight: 30 parts of raw coal, 5 parts of anthracite, 5 parts of composite raw materials, 3 parts of synthetic resin, 3 parts of polyethylene, 1 part of sodium selenite, 5 parts of synergistic compound, 1 part of pure phosphoric acid solution, 1 part of nano titanium oxide, 1 part of tourmaline powder, 1 part of coal tar, 1 part of pulp black liquor concentrate, 1 part of fatty amide, 1 part of binder and 1 part of activator.

[0010] Preferably, the raw materials include, by weight: 40 parts of raw coal, 10 parts of anthracite, 10 parts of composite raw materials, 5 parts of synthetic resin, 5 parts of polyethylene, 3 parts of sodium selenite, 10 parts of synergistic compound, 3 parts of pure phosphoric acid solution, 3 parts of nano titanium oxide, 3 parts of tourmaline powder, 3 parts of coal tar, 3 parts of pulp black liquor concentrate, 3 parts of fatty amide, 3 parts of binder and 3 parts of activator.

[0011] Preferably, the composite raw material is any combination of two or more of coconut shells, rice shells, nut shells, bamboo or broken bones.

[0012] Preferably, the synergistic compound is any combination of two or more of lime, bentonite, clay, medical stone or attapulgite.

[0013] Preferably, the activator is one of NaOH or KOH.

[0014] The present invention also provides a method for preparing activated carbon for water purification, which specifically comprises the following steps:

[0015] S1. Weighing of raw materials: using batching equipment to measure the required weight portions of raw coal, anthracite, composite raw materials, synthetic resin, polyethylene, sodium selenite, synergistic compound, pure phosphoric acid solution, nano titanium oxide, tourmaline powder, coal tar, pulp black liquor concentrate, fatty amide, binder and activator;

[0016] S2. Processing of the carbonized composite material: washing the composite material weighed in step S1 with distilled water, drying it at 70-80° C. for 10-15 hours, and carbonizing it at 400-450° C. under the protection of inert gas, and then crushing and screening it to obtain a carbonized composite material;

[0017] S3, mixed impregnation treatment: pour the raw coal, anthracite, synthetic resin, polyethylene, sodium selenite, synergistic compound, nano titanium oxide, tourmaline powder, coal tar, pulp black liquor concentrate, fatty amide and binder weighed in step S1 into a mixing device in sequence, then add the carbonized composite material obtained in step S2 into the mixing device, impregnate it in pure phosphoric acid solution for 23-24 hours according to proportion, and then place it in an oven at 70-80°C for 15-20 hours to obtain a mixed carbonized material;

[0018] S4, secondary activation treatment: placing the mixed carbonized material obtained in step S3 in a rotary activation furnace, and activating it with an activation gas to obtain primary activated carbon, and then immersing the primary activated carbon in an activating agent in proportion for 20-24 hours, placing it in an oven at 70-80°C for drying for 10-12 hours, and then placing it in a rotary activation furnace again, and activating it with an activation gas to obtain secondary activated carbon.

[0019] (III) Beneficial effects

[0020] The present invention provides an activated carbon for water purification and a preparation method thereof. Compared with the prior art, the activated carbon for water purification and the preparation method thereof have the following beneficial effects: the raw materials of the activated carbon for water purification and the preparation method thereof include, by weight: 30-40 parts of raw coal, 5-10 parts of anthracite, 5-10 parts of composite raw materials, 3-5 parts of synthetic resin, 3-5 parts of polyethylene, 1-3 parts of sodium selenite, 5-10 parts of synergistic compound, 1-3 parts of pure phosphoric acid solution, 1-3 parts of nano titanium oxide, 1-3 parts of tourmaline powder, 1-3 parts of coal tar, 1-3 parts of pulp black liquor concentrate, 1-3 parts of fatty amide, and 1-3 parts of binder. 1-3 parts of activated carbon and 1-3 parts of activator can be used for long-term purification of water with relatively high dirtiness, and it achieves the purpose of both long-term water purification and more sufficient water purification, avoiding the situation where the purification function of activated carbon is greatly weakened or fails after long-term use, and realizes the synergistic use of raw coal, anthracite, composite raw materials, synergistic composite materials, nano-titanium oxide and tourmaline powder to greatly enhance the adsorption effect of activated carbon, thereby greatly facilitating people's long-term use of activated carbon for water purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention is a flow chart of the preparation method. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1 The embodiments of the present invention provide three technical solutions: an activated carbon for water purification and a preparation method thereof, specifically including the following embodiments:

[0024] Embodiment 1: A kind of activated carbon for water purification, whose raw materials include by weight: 35 parts of raw coal, 7 parts of anthracite, 7 parts of composite raw materials, 4 parts of synthetic resin, 4 parts of polyethylene, 2 parts of sodium selenite, 7 parts of synergistic composite, 2 parts of pure phosphoric acid solution, 2 parts of nano titanium oxide, 2 parts of tourmaline powder, 2 parts of coal tar, 2 parts of pulp black liquor concentrate, 2 parts of fatty amide, 2 parts of binder and 2 parts of activator, the composite raw materials are a combination of coconut shell, rice shell, nut shell, bamboo and broken bones, the synergistic composite is a combination of lime, bentonite, clay, medical stone and attapulgite, and the activator is NaOH.

[0025] The present invention also provides a method for preparing activated carbon for water purification, which specifically comprises the following steps:

[0026] S1. Weighing of raw materials: using batching equipment to measure the required weight portions of raw coal, anthracite, composite raw materials, synthetic resin, polyethylene, sodium selenite, synergistic compound, pure phosphoric acid solution, nano titanium oxide, tourmaline powder, coal tar, pulp black liquor concentrate, fatty amide, binder and activator;

[0027] S2. Processing of the carbonized composite material: washing the composite material weighed in step S1 with distilled water, drying it at 75° C. for 13 h, and carbonizing it at 425° C. under the protection of an inert gas, and then crushing and screening it to obtain a carbonized composite material;

[0028] S3, mixed impregnation treatment: pour the raw coal, anthracite, synthetic resin, polyethylene, sodium selenite, synergistic compound, nano titanium oxide, tourmaline powder, coal tar, pulp black liquor concentrate, fatty amide and binder weighed in step S1 into a mixing device in sequence, then add the carbonized composite material obtained in step S2 into the mixing device, impregnate it in pure phosphoric acid solution for 23.5 hours according to proportion, and then place it in an oven at 75°C for 17 hours to obtain a mixed carbonized material;

[0029] S4, secondary activation treatment: placing the mixed carbonized material obtained in step S3 in a rotary activation furnace, and activating it with an activation gas to obtain primary activated carbon, and then immersing the primary activated carbon in an activating agent in proportion for 22 hours, placing it in an oven to dry at 75° C. for 11 hours, and then placing it in a rotary activation furnace again, and activating it with an activation gas to obtain secondary activated carbon.

[0030] Embodiment 2: An activated carbon for water purification, whose raw materials include by weight: 30 parts of raw coal, 5 parts of anthracite, 5 parts of composite raw materials, 3 parts of synthetic resin, 3 parts of polyethylene, 1 part of sodium selenite, 5 parts of synergistic composite materials, 1 part of pure phosphoric acid solution, 1 part of nano titanium oxide, 1 part of tourmaline powder, 1 part of coal tar, 1 part of pulp black liquor concentrate, 1 part of fatty amide, 1 part of binder and 1 part of activator, the composite raw materials are a combination of coconut shell, rice shell and nut shell, the synergistic composite materials are a combination of lime, bentonite and clay, and the activator is KOH.

[0031] The present invention also provides a method for preparing activated carbon for water purification, which specifically comprises the following steps:

[0032] S1. Weighing of raw materials: using batching equipment to measure the required weight portions of raw coal, anthracite, composite raw materials, synthetic resin, polyethylene, sodium selenite, synergistic compound, pure phosphoric acid solution, nano titanium oxide, tourmaline powder, coal tar, pulp black liquor concentrate, fatty amide, binder and activator;

[0033] S2. Processing of the carbonized composite material: washing the composite material weighed in step S1 with distilled water, drying it at 70° C. for 10 h, and carbonizing it at 400° C. under the protection of an inert gas, and then crushing and screening it to obtain a carbonized composite material;

[0034] S3, mixed impregnation treatment: pour the raw coal, anthracite, synthetic resin, polyethylene, sodium selenite, synergistic compound, nano titanium oxide, tourmaline powder, coal tar, pulp black liquor concentrate, fatty amide and binder weighed in step S1 into a mixing device in sequence, then add the carbonized composite material obtained in step S2 into the mixing device, impregnate it in pure phosphoric acid solution for 23 hours according to proportion, and then place it in an oven at 70°C for 15 hours to obtain a mixed carbonized material;

[0035] S4, secondary activation treatment: placing the mixed carbonized material obtained in step S3 in a rotary activation furnace and activating it with an activation gas to obtain primary activated carbon, then immersing the primary activated carbon in an activating agent in proportion for 20 hours, placing it in an oven and drying it at 70°C for 10 hours, and then placing it in a rotary activation furnace again and activating it with an activation gas to obtain secondary activated carbon.

[0036] Embodiment 3: A kind of activated carbon for water purification, whose raw materials include by weight: 40 parts of raw coal, 10 parts of anthracite, 10 parts of composite raw material, 5 parts of synthetic resin, 5 parts of polyethylene, 3 parts of sodium selenite, 10 parts of synergistic compound, 3 parts of pure phosphoric acid solution, 3 parts of nano titanium oxide, 3 parts of tourmaline powder, 3 parts of coal tar, 3 parts of pulp black liquor concentrate, 3 parts of fatty amide, 3 parts of binder and 3 parts of activator, the composite raw material is a combination of bamboo and broken bones, the synergistic compound is a combination of medical stone and attapulgite, and the activator is NaOH.

[0037] The present invention also provides a method for preparing activated carbon for water purification, which specifically comprises the following steps:

[0038] S1. Weighing of raw materials: using batching equipment to measure the required weight portions of raw coal, anthracite, composite raw materials, synthetic resin, polyethylene, sodium selenite, synergistic compound, pure phosphoric acid solution, nano titanium oxide, tourmaline powder, coal tar, pulp black liquor concentrate, fatty amide, binder and activator;

[0039] S2. Processing of the carbonized composite material: washing the composite material weighed in step S1 with distilled water, drying it at 80° C. for 15 h, and carbonizing it at 450° C. under the protection of an inert gas, and then crushing and screening it to obtain a carbonized composite material;

[0040] S3, mixed impregnation treatment: pour the raw coal, anthracite, synthetic resin, polyethylene, sodium selenite, synergistic compound, nano titanium oxide, tourmaline powder, coal tar, pulp black liquor concentrate, fatty amide and binder weighed in step S1 into a mixing device in sequence, then add the carbonized composite material obtained in step S2 into the mixing device, impregnate it in pure phosphoric acid solution for 24 hours according to proportion, and then place it in an oven at 80°C for 20 hours to obtain a mixed carbonized material;

[0041] S4, secondary activation treatment: placing the mixed carbonized material obtained in step S3 in a rotary activation furnace and activating it with an activation gas to obtain primary activated carbon, then immersing the primary activated carbon in an activating agent in proportion for 24 hours, placing it in an oven and drying it at 80°C for 12 hours, and then placing it in a rotary activation furnace again and activating it with an activation gas to obtain secondary activated carbon.

[0042] In summary, the present invention can be applied to the long-term purification of relatively dirty water bodies, and achieves the purpose of both long-term water purification and more sufficient water purification, avoiding the situation in which the purification function of activated carbon is greatly weakened or fails after long-term use, and realizes the synergistic use of raw coal, anthracite, composite raw materials, synergistic composites, nano-titanium oxide and tourmaline powder to greatly enhance the adsorption effect of activated carbon, thereby greatly facilitating people's long-term use of activated carbon for water purification.

[0043] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An activated carbon for water purification, characterized in that: The raw materials include, by weight: 30-40 parts of raw coal, 5-10 parts of anthracite, 5-10 parts of composite raw materials, 3-5 parts of synthetic resin, 3-5 parts of polyethylene, 1-3 parts of sodium selenite, 5-10 parts of synergistic compound, 1-3 parts of pure phosphoric acid solution, 1-3 parts of nano titanium oxide, 1-3 parts of tourmaline powder, 1-3 parts of coal tar, 1-3 parts of pulp black liquor concentrate, 1-3 parts of fatty amide, 1-3 parts of binder and 1-3 parts of activator.

2. The activated carbon for water purification according to claim 1, characterized in that: The raw materials include, by weight: 35 parts of raw coal, 7 parts of anthracite, 7 parts of composite raw materials, 4 parts of synthetic resin, 4 parts of polyethylene, 2 parts of sodium selenite, 7 parts of synergistic compound, 2 parts of pure phosphoric acid solution, 2 parts of nano titanium oxide, 2 parts of tourmaline powder, 2 parts of coal tar, 2 parts of pulp black liquor concentrate, 2 parts of fatty amide, 2 parts of binder and 2 parts of activator.

3. The activated carbon for water purification according to claim 1, characterized in that: The raw materials include, by weight: 30 parts of raw coal, 5 parts of anthracite, 5 parts of composite raw materials, 3 parts of synthetic resin, 3 parts of polyethylene, 1 part of sodium selenite, 5 parts of synergistic compound, 1 part of pure phosphoric acid solution, 1 part of nano titanium oxide, 1 part of tourmaline powder, 1 part of coal tar, 1 part of pulp black liquor concentrate, 1 part of fatty amide, 1 part of binder and 1 part of activator.

4. The activated carbon for water purification according to claim 1, characterized in that: The raw materials include, by weight: 40 parts of raw coal, 10 parts of anthracite, 10 parts of composite raw materials, 5 parts of synthetic resin, 5 parts of polyethylene, 3 parts of sodium selenite, 10 parts of synergistic compound, 3 parts of pure phosphoric acid solution, 3 parts of nano titanium oxide, 3 parts of tourmaline powder, 3 parts of coal tar, 3 parts of pulp black liquor concentrate, 3 parts of fatty amide, 3 parts of binder and 3 parts of activator.

5. An activated carbon for water purification according to any one of claims 1 to 4, characterized in that: The composite raw material is any combination of two or more of coconut shells, rice shells, nut shells, bamboo or broken bones.

6. An activated carbon for water purification according to any one of claims 1 to 4, characterized in that: The synergistic compound is any combination of two or more of lime, bentonite, clay, medical stone or attapulgite.

7. An activated carbon for water purification according to any one of claims 1 to 4, characterized in that: The activator is one of NaOH and KOH.

8. A method for preparing the activated carbon for water purification according to any one of claims 1 to 4, characterized in that: The specific steps include: S1. Weighing of raw materials: using batching equipment to measure the required weight portions of raw coal, anthracite, composite raw materials, synthetic resin, polyethylene, sodium selenite, synergistic compound, pure phosphoric acid solution, nano titanium oxide, tourmaline powder, coal tar, pulp black liquor concentrate, fatty amide, binder and activator; S2. Processing of the carbonized composite material: washing the composite material weighed in step S1 with distilled water, drying it at 70-80° C. for 10-15 hours, and carbonizing it at 400-450° C. under the protection of inert gas, and then crushing and screening it to obtain a carbonized composite material; S3, mixed impregnation treatment: pour the raw coal, anthracite, synthetic resin, polyethylene, sodium selenite, synergistic compound, nano titanium oxide, tourmaline powder, coal tar, pulp black liquor concentrate, fatty amide and binder weighed in step S1 into a mixing device in sequence, then add the carbonized composite material obtained in step S2 into the mixing device, impregnate it in pure phosphoric acid solution for 23-24 hours according to proportion, and then place it in an oven at 70-80°C for 15-20 hours to obtain a mixed carbonized material; S4, secondary activation treatment: placing the mixed carbonized material obtained in step S3 in a rotary activation furnace, and activating it with an activation gas to obtain primary activated carbon, and then immersing the primary activated carbon in an activating agent in proportion for 20-24 hours, placing it in an oven at 70-80°C for drying for 10-12 hours, and then placing it in a rotary activation furnace again, and activating it with an activation gas to obtain secondary activated carbon.

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