Recyclable environment-friendly water purifying agent and preparation method thereof
By preparing a recyclable and environmentally friendly water purification agent with a spherical structure, and utilizing a combination of components such as activated carbon and calcium aluminate powder, the problem of residual high-molecular organic matter and metal substances in sewage is solved, achieving a highly efficient multi-level sewage treatment effect.
Patent Information
- Application Number
- CN202511595381.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-03
- Publication Date
- 2025-12-12
AI Technical Summary
In existing wastewater treatment technologies, activated carbon still contains high-molecular-weight organic matter and metallic substances, resulting in poor treatment effects.
This recyclable and environmentally friendly water purifier, with a spherical structure, is composed of activated carbon, calcium aluminate powder, inorganic polymer, ion exchange resin, pH adjuster, and descaling agent. It is prepared through steps such as stirring, granulation, drying, and ball milling. The ion exchange resin membrane coating the surface of the granules forms a stable ion exchange resin membrane, thus producing recyclable and environmentally friendly water purifier granules.
It effectively removes dissolved ionic pollutants and color from wastewater, while calcium aluminate powder rapidly removes heavy metals and organic matter, achieving multi-level treatment.
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Figure SMS_1
Abstract
Description
Technical Field
[0001] This invention relates to the field of recyclable and environmentally friendly water purification agent preparation technology, and particularly to a recyclable and environmentally friendly water purification agent and its preparation method. Background Technology
[0002] With societal development, water treatment issues are becoming increasingly serious. Recyclable and environmentally friendly water purifiers are needed in water treatment. These are agents that can react with other impurities in the water when added. Commonly used recyclable and environmentally friendly water purifiers include polyaluminum chloride, polyaluminum ferric chloride, basic aluminum chloride, polyacrylamide, ferrous sulfate, aluminum sulfate, and polyferric sulfate.
[0003] Currently, wastewater treatment typically involves using activated carbon to absorb impurities and then filtering the wastewater. However, the wastewater still contains certain high-molecular-weight organic matter and metallic substances after being absorbed by activated carbon, resulting in poor treatment efficiency and adverse effects on users. To address the shortcomings of existing technologies, we propose a recyclable and environmentally friendly water purification agent and its preparation method. Summary of the Invention
[0004] The main objective of this invention is to provide a recyclable and environmentally friendly water purifier and its preparation method, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A recyclable and environmentally friendly water purifier, wherein the recyclable and environmentally friendly water purifier has a spherical structure and comprises the following raw materials by weight g: 3-5g activated carbon, 2-5g calcium aluminate powder, 4-5g inorganic polymer, 4-5g ion exchange resin, 2-4g pH adjuster, 4-6g descaling agent, and 2-6g alumina powder.
[0006] Preferably, the activated carbon is mineral activated carbon or wood activated carbon. The main component of the mineral activated carbon is carbon, and it contains small amounts of elements such as oxygen, hydrogen, sulfur, nitrogen, and chlorine. The wood activated carbon is made from one or more of the following raw materials: high-quality firewood, sawdust, wood blocks, coconut shells, and fruit shells.
[0007] Preferably, the main components of the calcium aluminate powder are a mixture of calcium dialuminate and calcium monoaluminate, which are slightly soluble in water, and the aqueous solution is alkaline with a pH value of about 11.
[0008] Preferably, the main components of the descaling agent are acetic acid, citric acid, sodium bicarbonate, or sodium hydroxide.
[0009] A recyclable and environmentally friendly water purifier and its preparation method are disclosed. The preparation method of the recyclable and environmentally friendly water purifier includes the following steps: S1: Weigh out activated carbon, descaling agent, and inorganic polymer according to the weight parts, add the weighed raw materials to the reaction vessel for reaction, control the temperature to be maintained at 30-50 degrees Celsius, stir the raw materials in the reaction vessel during the reaction, add a certain amount of pH adjuster to the raw materials while stirring, and wash the raw materials with water after stirring until the raw materials are neutral. S2: Weigh calcium aluminate powder and alumina powder according to the weight parts, and stir and crush the raw materials. The stirring speed is 550-650 r / min, and the stirring time is 7-10 min. S3: Add the mixed raw materials from step S2 to the reaction vessel from step S1, and add water at the same time. Stir the mixed raw materials in the reaction vessel to make the raw materials evenly mixed and obtain a mixture. S4: Add the mixture from step S3 to the granulator for granulation, and then dry the granules. S5: Add the particles from step S4 to the ion exchange resin solution. After the ion exchange resin is uniformly adsorbed on the surface of the particles, cool for 10-20 minutes and then put the cooled particles into a ball mill for ball milling to obtain particles coated with ion exchange resin membrane, and finally produce recyclable and environmentally friendly water purification agent particles.
[0010] Preferably, the stirring speed in step S1 is 110-120 r / min, and the stirring time is 10-20 min.
[0011] Preferably, the granulation temperature in step S4 is 45-60 degrees Celsius, the drying temperature is 150-200 degrees Celsius, and the drying time is 15-30 minutes. Beneficial effects
[0012] Compared with the prior art, the present invention has the following beneficial effects: The ion exchange resin membrane on the surface of the recyclable environmentally friendly water purifier prepared by this method can remove dissolved ionic pollutants from wastewater. At the same time, the activated carbon inside the recyclable environmentally friendly water purifier is one of wood-based activated carbon and mineral-based activated carbon, which can effectively remove color from wastewater. Calcium aluminate powder is added to the recyclable environmentally friendly water purifier, which can efficiently and quickly remove heavy metals and organic pollutants from wastewater. In addition, the recyclable environmentally friendly water purifier granules can perform multi-level treatment of wastewater during sedimentation. Detailed Implementation
[0013] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.
[0014] Example 1: A recyclable and environmentally friendly water purifier. The recyclable and environmentally friendly water purifier particles have a spherical structure. The recyclable and environmentally friendly water purifier comprises the following raw materials in parts by weight: 3-5g activated carbon, 2-5g calcium aluminate powder, 4-5g inorganic polymer, 4-5g ion exchange resin, 2-4g pH adjuster, 4-6g descaling agent, and 2-6g alumina powder. The recyclable and environmentally friendly water purifier is a dried recyclable and environmentally friendly water purifier particle, and the outer surface of the particle is an ion exchange resin membrane.
[0015] The activated carbon is mineral activated carbon, whose main component is carbon, and contains small amounts of oxygen, hydrogen, sulfur, nitrogen, chlorine and other elements.
[0016] The main components of the calcium aluminate powder are a mixture of calcium dialuminate and calcium monoaluminate.
[0017] The main component of the descaling agent is acetic acid.
[0018] The recyclable and environmentally friendly water purification agent particles have a particle size of 3 nm.
[0019] Accordingly, a method for preparing a recyclable and environmentally friendly water purifier as described above includes the following steps: S1: Weigh out activated carbon, descaling agent, and inorganic polymer according to the weight parts, add the weighed raw materials to the reaction vessel for reaction, control the temperature to maintain at 30 degrees Celsius, stir the raw materials in the reaction vessel during the reaction, add a certain amount of pH adjuster to the raw materials while stirring, and wash the raw materials with water after stirring until the raw materials are neutral. S2: Weigh calcium aluminate powder and alumina powder according to the weight parts, and stir and crush the raw materials. The stirring speed is 600 / min, and the stirring time is 8min. S3: Add the mixed raw materials from step S2 to the reaction vessel from step S1, and add water at the same time. Stir the mixed raw materials in the reaction vessel to make the raw materials evenly mixed and obtain a mixture. S4: Add the mixture from step S3 to the granulator for granulation, and then dry the granules. S5: Add the particles from step S4 to the ion exchange resin solution. After the ion exchange resin is uniformly adsorbed on the surface of the particles, cool for 15 minutes and then put the cooled particles into a ball mill for ball milling to obtain particles coated with ion exchange resin membrane, and finally produce recyclable and environmentally friendly water purification agent particles.
[0020] Example 2: A recyclable and environmentally friendly water purifier. The recyclable and environmentally friendly water purifier particles have a spherical structure. The recyclable and environmentally friendly water purifier comprises the following raw materials in parts by weight: 3-5g activated carbon, 2-5g calcium aluminate powder, 4-5g inorganic polymer, 4-5g ion exchange resin, 2-4g pH adjuster, 4-6g descaling agent, and 2-6g alumina powder. The recyclable and environmentally friendly water purifier is a dried recyclable and environmentally friendly water purifier particle, and the outer surface of the particle is an ion exchange resin membrane.
[0021] The activated carbon is mineral activated carbon, whose main component is carbon, and contains small amounts of oxygen, hydrogen, sulfur, nitrogen, chlorine and other elements.
[0022] The main components of the calcium aluminate powder are a mixture of calcium dialuminate and calcium monoaluminate.
[0023] The main component of the descaling agent is acetic acid.
[0024] The recyclable and environmentally friendly water purification agent particles have a particle size of 5 nm.
[0025] Accordingly, a method for preparing a recyclable and environmentally friendly water purifier as described above includes the following steps: S1: Weigh out activated carbon, descaling agent, and inorganic polymer according to the weight parts, add the weighed raw materials to the reaction vessel for reaction, control the temperature to be maintained at 35 degrees Celsius, stir the raw materials in the reaction vessel during the reaction, add a certain amount of pH adjuster to the raw materials while stirring, and wash the raw materials with water after stirring until the raw materials are neutral. S2: Weigh calcium aluminate powder and alumina powder according to the weight parts, and stir and crush the raw materials. The stirring speed is 600 / min, and the stirring time is 8min. S3: Add the mixed raw materials from step S2 to the reaction vessel from step S1, and add water at the same time. Stir the mixed raw materials in the reaction vessel to make the raw materials evenly mixed and obtain a mixture. S4: Add the mixture from step S3 to the granulator for granulation, and then dry the granules. S5: Add the particles from step S4 to the ion exchange resin solution. After the ion exchange resin is uniformly adsorbed on the surface of the particles, cool for 15 minutes and then put the cooled particles into a ball mill for ball milling to obtain particles coated with ion exchange resin membrane, and finally produce recyclable and environmentally friendly water purification agent particles.
[0026] Example 3: A recyclable and environmentally friendly water purifier. The recyclable and environmentally friendly water purifier particles have a spherical structure. The recyclable and environmentally friendly water purifier comprises the following raw materials in parts by weight: 3-5g activated carbon, 2-5g calcium aluminate powder, 4-5g inorganic polymer, 4-5g ion exchange resin, 2-4g pH adjuster, 4-6g descaling agent, and 2-6g alumina powder. The recyclable and environmentally friendly water purifier is a dried recyclable and environmentally friendly water purifier particle, and the outer surface of the particle is an ion exchange resin membrane.
[0027] The activated carbon is mineral activated carbon, whose main component is carbon, and contains small amounts of oxygen, hydrogen, sulfur, nitrogen, chlorine and other elements.
[0028] The main components of the calcium aluminate powder are a mixture of calcium dialuminate and calcium monoaluminate.
[0029] The main component of the descaling agent is acetic acid.
[0030] The recyclable and environmentally friendly water purification agent particles have a particle size of 8 nm.
[0031] Accordingly, a method for preparing a recyclable and environmentally friendly water purifier as described above includes the following steps: S1: Weigh out activated carbon, descaling agent, and inorganic polymer according to the weight parts, add the weighed raw materials to the reaction vessel for reaction, control the temperature to be maintained at 40 degrees Celsius, stir the raw materials in the reaction vessel during the reaction, add a certain amount of pH adjuster to the raw materials while stirring, and wash the raw materials with water after stirring until the raw materials are neutral. S2: Weigh calcium aluminate powder and alumina powder according to the weight parts, and stir and crush the raw materials. The stirring speed is 600 / min, and the stirring time is 8min. S3: Add the mixed raw materials from step S2 to the reaction vessel from step S1, and add water at the same time. Stir the mixed raw materials in the reaction vessel to make the raw materials evenly mixed and obtain a mixture. S4: Add the mixture from step S3 to the granulator for granulation, and then dry the granules. S5: Add the particles from step S4 to the ion exchange resin solution. After the ion exchange resin is uniformly adsorbed on the surface of the particles, cool for 15 minutes and then put the cooled particles into a ball mill for ball milling to obtain particles coated with ion exchange resin membrane, and finally produce recyclable and environmentally friendly water purification agent particles.
[0032] Example 4: A recyclable and environmentally friendly water purifier. The recyclable and environmentally friendly water purifier particles have a spherical structure. The recyclable and environmentally friendly water purifier comprises the following raw materials in parts by weight: 3-5g activated carbon, 2-5g calcium aluminate powder, 4-5g inorganic polymer, 4-5g ion exchange resin, 2-4g pH adjuster, 4-6g descaling agent, and 2-6g alumina powder. The recyclable and environmentally friendly water purifier is a dried recyclable and environmentally friendly water purifier particle, and the outer surface of the particle is an ion exchange resin membrane.
[0033] The activated carbon is mineral activated carbon, whose main component is carbon, and contains small amounts of oxygen, hydrogen, sulfur, nitrogen, chlorine and other elements.
[0034] The main components of the calcium aluminate powder are a mixture of calcium dialuminate and calcium monoaluminate.
[0035] The main component of the descaling agent is acetic acid.
[0036] The recyclable and environmentally friendly water purification agent particles have a particle size of 10 nm.
[0037] Accordingly, a method for preparing a recyclable and environmentally friendly water purifier as described above includes the following steps: S1: Weigh out activated carbon, descaling agent, and inorganic polymer according to the weight parts, add the weighed raw materials to the reaction vessel for reaction, control the temperature to be maintained at 45 degrees Celsius, stir the raw materials in the reaction vessel during the reaction, add a certain amount of pH adjuster to the raw materials while stirring, and wash the raw materials with water after stirring until the raw materials are neutral. S2: Weigh calcium aluminate powder and alumina powder according to the weight parts, and stir and crush the raw materials. The stirring speed is 600 / min, and the stirring time is 8min. S3: Add the mixed raw materials from step S2 to the reaction vessel from step S1, and add water at the same time. Stir the mixed raw materials in the reaction vessel to make the raw materials evenly mixed and obtain a mixture. S4: Add the mixture from step S3 to the granulator for granulation, and then dry the granules. S5: Add the particles from step S4 to the ion exchange resin solution. After the ion exchange resin is uniformly adsorbed on the surface of the particles, cool for 15 minutes and then put the cooled particles into a ball mill for ball milling to obtain particles coated with ion exchange resin membrane, and finally produce recyclable and environmentally friendly water purification agent particles.
[0038] Example 5: A recyclable and environmentally friendly water purifier. The recyclable and environmentally friendly water purifier particles have a spherical structure. The recyclable and environmentally friendly water purifier comprises the following raw materials in parts by weight: 3-5g activated carbon, 2-5g calcium aluminate powder, 4-5g inorganic polymer, 4-5g ion exchange resin, 2-4g pH adjuster, 4-6g descaling agent, and 2-6g alumina powder. The recyclable and environmentally friendly water purifier is a dried recyclable and environmentally friendly water purifier particle, and the outer surface of the particle is an ion exchange resin membrane.
[0039] The activated carbon is mineral activated carbon, whose main component is carbon, and contains small amounts of oxygen, hydrogen, sulfur, nitrogen, chlorine and other elements.
[0040] The main components of the calcium aluminate powder are a mixture of calcium dialuminate and calcium monoaluminate.
[0041] The main component of the descaling agent is acetic acid.
[0042] The recyclable and environmentally friendly water purification agent particles have a particle size of 12 nm.
[0043] Accordingly, a method for preparing a recyclable and environmentally friendly water purifier as described above includes the following steps: S1: Weigh out activated carbon, descaling agent, and inorganic polymer according to the weight parts, add the weighed raw materials to the reaction vessel for reaction, control the temperature to be maintained at 50 degrees Celsius, stir the raw materials in the reaction vessel during the reaction, add a certain amount of pH adjuster to the raw materials while stirring, and wash the raw materials with water after stirring until the raw materials are neutral. S2: Weigh calcium aluminate powder and alumina powder according to the weight parts, and stir and crush the raw materials. The stirring speed is 600 / min, and the stirring time is 8min. S3: Add the mixed raw materials from step S2 to the reaction vessel from step S1, and add water at the same time. Stir the mixed raw materials in the reaction vessel to make the raw materials evenly mixed and obtain a mixture. S4: Add the mixture from step S3 to the granulator for granulation, and then dry the granules. S5: Add the particles from step S4 to the ion exchange resin solution. After the ion exchange resin is uniformly adsorbed on the surface of the particles, cool for 15 minutes and then put the cooled particles into a ball mill for ball milling to obtain particles coated with ion exchange resin membrane, and finally produce recyclable and environmentally friendly water purification agent particles.
[0044] The performance of Examples 1-5 and the commercially available recyclable environmentally friendly water purifier (polyaluminum chloride) was tested according to the following test methods.
[0045] 1. Settling velocity test method: Prepare a water sample with a raw water temperature of 20°C, a turbidity of 400 NTU, and a heavy metal content of 0.1 mg / L. On a coagulation settling test platform with a length, width, and height of 1 meter, add the recyclable environmentally friendly water purification agents from Examples 1 to 5 and commercially available polyaluminum chloride or commercially available polyaluminum ferric chloride to the water sample, respectively, with the same dosage. Test the time from the start of addition of the recyclable environmentally friendly water purification agent for the water to change from turbid to clear.
[0046] 2. Water purification capacity test method: On the above-mentioned sedimentation test platform, add the same weight of recyclable environmentally friendly water purification agent. After sedimentation for the same period of time, the water purification capacity is judged by testing the turbidity of the water samples before and after the addition of the recyclable environmentally friendly water purification agent.
[0047] 3: Removal effect of heavy metal content in sludge: After the sludge obtained by sedimentation on the above sedimentation test platform is filtered by pressure, the recyclable environmentally friendly water purification agent particles and the enriched heavy metals in the sludge are removed from the sludge under the action of an external magnetic field with a magnetic field strength of 1T. The heavy metal removal rate of sludge is evaluated by testing the content of heavy metals in the sludge before and after removal.
[0048] 4: After the recyclable environmentally friendly water purification agent particles and the accumulated heavy metals in the sludge are removed from the sludge, the recyclable environmentally friendly water purification agent particles can be further recovered, so that they can be easily re-prepared to obtain the recyclable environmentally friendly water purification agent as described in Examples 1 to 5.
[0049] The test results are shown in Table 1:
[0050] It is evident that the effect of commercially available recyclable environmentally friendly water purifiers is significantly less than that of the recyclable environmentally friendly water purifier obtained by this invention. Furthermore, the size of the recyclable environmentally friendly water purifier particles also affects the water purification effect. Larger recyclable environmentally friendly water purifier particles not only have a better effect on wastewater treatment but are also easier to recycle.
[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.
Claims
1. A recyclable and environmentally friendly water purification agent, characterized in that: The recyclable and environmentally friendly water purifier has a spherical structure and includes the following raw materials by weight: 3-5g activated carbon, 2-5g calcium aluminate powder, 4-5g inorganic polymer, 4-5g ion exchange resin, 2-4g pH adjuster, 4-6g descaling agent, and 2-6g alumina powder.
2. The recyclable and environmentally friendly water purifier according to claim 1, characterized in that: The activated carbon is either mineral activated carbon or wood activated carbon. The main component of the mineral activated carbon is carbon, and it contains small amounts of elements such as oxygen, hydrogen, sulfur, nitrogen, and chlorine. The wood activated carbon is made from one or more of the following raw materials: high-quality firewood, sawdust, wood blocks, coconut shells, and fruit shells.
3. The recyclable and environmentally friendly water purifier according to claim 1, characterized in that: The main components of the calcium aluminate powder are a mixture of calcium dialuminate and calcium monoaluminate, which are slightly soluble in water. The aqueous solution is alkaline with a pH of approximately 11.
4. The recyclable and environmentally friendly water purifier according to claim 1, characterized in that: The main components of the descaling agent are acetic acid, citric acid, sodium bicarbonate, or sodium hydroxide.
5. A recyclable and environmentally friendly water purifier as described in claim 1, characterized in that: The preparation method of recyclable and environmentally friendly water purification agent includes the following steps: S1: Weigh out activated carbon, descaling agent, and inorganic polymer according to weight, add the weighed raw materials to the reaction vessel for reaction, control the temperature to be maintained at 30-50 degrees Celsius, stir the raw materials in the reaction vessel during the reaction, add a certain amount of pH adjuster to the raw materials while stirring, and wash the raw materials with water after stirring until the raw materials are neutral. S2: Weigh calcium aluminate powder and alumina powder by weight, and stir and crush the raw materials. The stirring speed is 550-650 r / min, and the stirring time is 7-10 min. S3: Add the mixed raw materials from step S2 to the reaction vessel from step S1, and add water at the same time. Stir the mixed raw materials in the reaction vessel to make the raw materials evenly mixed and obtain a mixture. S4: Add the mixture from step S3 to the granulator for granulation, and then dry the granules. S5: Add the particles from step S4 to the ion exchange resin solution. After the ion exchange resin is uniformly adsorbed on the surface of the particles, cool for 10-20 minutes and then put the cooled particles into a ball mill for ball milling to obtain particles coated with ion exchange resin membrane, and finally produce recyclable and environmentally friendly water purification agent particles.
6. The recyclable and environmentally friendly water purifier according to claim 5, characterized in that: The stirring speed in step S1 is 110-120 r / min, and the stirring time is 10-20 min.
7. The recyclable and environmentally friendly water purifier according to claim 1, characterized in that: The granulation temperature in step S4 is 45-60 degrees Celsius, the drying temperature is 150-200 degrees Celsius, and the drying time is 15-30 minutes.