CN110818058A - Preparation method of household water purification filter - Google Patents
Preparation method of household water purification filter Download PDFInfo
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- CN110818058A CN110818058A CN201911060692.8A CN201911060692A CN110818058A CN 110818058 A CN110818058 A CN 110818058A CN 201911060692 A CN201911060692 A CN 201911060692A CN 110818058 A CN110818058 A CN 110818058A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to the field of water purification and filtration, in particular to a preparation method of a household water purification filter. The invention relates to a water purification filter with better filtering effect, which is prepared by bonding filters with different filtering pore diameters, wherein the filter a is prepared by using oxidized seaweed deposited minerals and active carbon as main raw materials, the filter is soft and porous in texture, and the unique molecular sieve structure determines that the filter has strong adsorption function and molecular exchange function, and the filter b is prepared by using inorganic ceramic materials and medical stone as main raw materials.
Description
Technical Field
The invention relates to the field of water purification and filtration, in particular to a preparation method of a household water purification filter.
Background
The daily water used by people is mainly tap water, and the tap water is water which is produced by purifying and disinfecting through a tap water treatment plant and meets the corresponding standard and is used for life and production of people. The domestic water mainly draws rivers, lakes, underground water and surface water through a water intake pump station of a water plant, is treated by the process flows of precipitation, disinfection, filtration and the like according to the national sanitary standards for drinking water for life by the water plant, and is finally conveyed to each user through a water distribution pump station.
The composite filter and the method for manufacturing the same (CN201611095099.3) in the prior patent are made of a composition comprising 5-30 wt% of aerogel, 10-40 wt% of polyethylene binder and 30-60 wt% of powdered activated carbon, and are used for composite filters that perform the functions of a pre-carbon filter, a membrane filter and a post-carbon filter in a composite manner. The present invention can provide a composite filter that performs the functions of a pre-carbon filter, a membrane filter, and a post-carbon filter in a composite manner by integrating the pre-carbon filter, the membrane filter, and the post-carbon filter into 1 filter. Also, the present invention makes the inside of the water purifier include 1 filter, thereby facilitating the treatment and significantly reducing the volume of the water purifier. Further, the present invention can provide a composite filter having excellent durability, adsorptivity, water flow rate, water purification performance, and the like, and thus the life of the filter can be improved.
Since tap water also contains a small amount of impurities, heavy metal particles and the like, the filter in the prior art has poor filtering effect and poor durability, people need to frequently replace the filter, and the economic cost is high.
Disclosure of Invention
In view of the above, the invention provides a method for manufacturing a household water purification filter, and the water purification filter with better filtering effect is manufactured by bonding filters with different filtering pore sizes.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for preparing a household water purifying filter comprises bonding two filters a and b made of different raw materials to form the water purifying filter with different filter pore sizes.
Further, the filter pore diameter of the filter a is 50 to 100nm, and the filter pore diameter of the filter b is 2 to 49 nm.
Further, the preparation method of the filter a comprises the following steps:
s1, taking the seaweed sedimentary minerals to react under an acidic condition, wherein the reaction temperature is 45-65 ℃, and the reaction time is 2-6 hours, so as to obtain oxidized seaweed sedimentary minerals;
s2, mixing the oxidized marine algae sedimentary minerals, activated carbon, a binder and a wetting agent into pure water according to a proportion, and uniformly mixing to prepare slurry;
s3, placing the slurry into a vibration dehydrator to dehydrate the slurry to 8-15%;
and S4, putting the dehydrated slurry into a mold for pressure forming, and simultaneously heating and drying the mold filled with the slurry to obtain the filter a.
Further, in S1, the acidic condition is to put the marine algae mineral deposit into a dilute hydrochloric acid solution with a pH value of 3.5-5.5.
Further, in S2, 15-20 parts of oxidized marine algae mineral deposit, 10-15 parts of activated carbon, 4-8 parts of binder, 3-7 parts of wetting agent and 50-100 parts of pure water are mixed and stirred for 10-20 min, and the stirring speed is 120-300 r/m.
Further, in S4, the mold filled with the slurry is subjected to stepwise heating treatment, wherein the first heating is performed to 85-100 ℃ for 10-30 min, the second heating is performed to 100-150 ℃ for 15-30 min, and the third heating is performed to more than 200 ℃ until the slurry is completely dried.
Further, in S4, the mold containing the slurry is immediately subjected to a heating and drying treatment and then to a quenching treatment with a gas or a liquid, thereby increasing the hardness and porosity of the filter a.
Further, the preparation method of the filter b comprises the following steps: respectively micronizing inorganic ceramic material and Maifanitum, mixing inorganic ceramic material powder, Maifanitum powder, binder, dispersant and wetting agent with pure water, making into slurry, oven drying, and sintering to obtain filter b.
Further, the inorganic ceramic material is any mixture of alumina, zirconia, titania or silica.
Further, in the preparation method of the filter b, 12-20 parts of inorganic ceramic material powder, 12-18 parts of medical stone powder, 4-9 parts of binder, 2-5 parts of dispersing agent, 2-4 parts of wetting agent and 30-50 parts of pure water are mixed.
Further, in the preparation method of the filter b, the drying temperature is 75-110 ℃, the time is 2-5 hours, the sintering temperature is 1000-1300 ℃, and the sintering time is 1-3 hours.
Further, the porosity of each of the filter a and the filter b is 40 to 70%.
The invention has the beneficial effects that: the invention relates to a water purification filter with better filtering effect, which is prepared by bonding filters with different filtering pore diameters, wherein the filter a is prepared by using oxidized seaweed deposited minerals and active carbon as main raw materials, the filter is soft and porous in texture, and the unique molecular sieve structure determines that the filter has strong adsorption function and molecular exchange function, and the filter b is prepared by using inorganic ceramic materials and medical stone as main raw materials.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A method for preparing a household water purifying filter comprises bonding two filters a and b made of different raw materials to form the water purifying filter with different filter pore sizes.
Example 1
In example 1, the filter pore diameter of the filter a was 50nm, and the filter pore diameter of the filter b was 10 nm.
In example 1, the preparation method of the above filter a includes:
s1, putting the seaweed sedimentary minerals into a dilute hydrochloric acid solution with the pH value of 3.8 for reaction at the reaction temperature of 50 ℃ for 3 hours to obtain oxidized seaweed sedimentary minerals;
s2, mixing 15 parts of oxidized seaweed sedimentary minerals, 10 parts of activated carbon, 5 parts of binding agents and 3 parts of wetting agents into 50 parts of pure water in proportion, and uniformly mixing to obtain slurry;
s3, placing the slurry into a vibration dehydrator to dehydrate the slurry to 10%;
s4, placing the dehydrated slurry into a mold for pressure forming, and carrying out step-type heating treatment on the mold filled with the slurry, wherein the first heating is carried out to 90 ℃ for 20min, the second heating is carried out to 130 ℃ for 20min, the third heating is carried out to above 400 ℃, and the slurry is completely dried.
In example 1, the preparation method of the filter b is as follows: and uniformly mixing 12 parts of inorganic ceramic material powder, 12 parts of medical stone powder, 5 parts of binder, 3 parts of dispersant, 3 parts of wetting agent and 30 parts of pure water to prepare slurry, and drying and sintering to prepare the filter b.
In example 1, the porosity of each of the filters a and b was 50%.
Example 2
In example 2, the filter pore diameter of the filter a was 70nm, and the filter pore diameter of the filter b was 20 nm.
In example 2, the preparation method of the filter a described above includes:
s1, putting the seaweed sedimentary minerals into a dilute hydrochloric acid solution with the pH value of 4.5 for reaction at the reaction temperature of 60 ℃ for 4.5 hours to obtain oxidized seaweed sedimentary minerals;
s2, mixing 17 parts of oxidized seaweed sedimentary minerals, 13 parts of activated carbon, 6 parts of binding agents and 4 parts of wetting agents into 50 parts of pure water in proportion, and uniformly mixing to obtain slurry;
s3, placing the slurry into a vibration dehydrator to dehydrate the slurry to 12%;
s4, placing the dehydrated slurry into a mold for pressure forming, and carrying out step-type heating treatment on the mold filled with the slurry, wherein the first heating is carried out to 95 ℃ for 18min, the second heating is carried out to 138 ℃ for 18min, the third heating is carried out to more than 500 ℃ until the slurry is completely dried.
In example 2, the preparation method of the filter b is as follows: and (2) uniformly mixing 15 parts of inorganic ceramic material powder, 15 parts of medical stone powder, 7 parts of binder, 3 parts of dispersant, 4 parts of wetting agent and 35 parts of pure water to prepare slurry, and drying and sintering to prepare the filter b.
In example 2, the porosity of each of the filters a and b was 60%.
Example 3
In example 3, the filter pore diameter of the filter a was 80nm, and the filter pore diameter of the filter b was 30 nm.
In example 2, the preparation method of the filter a described above includes:
s1, putting the seaweed sedimentary minerals into a dilute hydrochloric acid solution with the pH value of 5.0 for reaction at the reaction temperature of 68 ℃ for 5 hours to obtain oxidized seaweed sedimentary minerals;
s2, mixing 20 parts of oxidized seaweed sedimentary minerals, 15 parts of activated carbon, 8 parts of binder and 5 parts of wetting agent into 50 parts of pure water in proportion, and uniformly mixing to obtain slurry;
s3, placing the slurry into a vibration dehydrator to dehydrate the slurry to 15%;
s4, placing the dehydrated slurry into a mold for pressure forming, and carrying out stepped heating treatment on the mold filled with the slurry, wherein the first heating is carried out to 98 ℃ for 15min, the second heating is carried out to 145 ℃ for 20min, and the third heating is carried out to above 700 ℃ until the slurry is completely dried.
In example 2, the preparation method of the filter b is as follows: and (2) uniformly mixing 18 parts of inorganic ceramic material powder, 18 parts of medical stone powder, 8 parts of binder, 4 parts of dispersant, 4 parts of wetting agent and 40 parts of pure water to prepare slurry, and drying and sintering to prepare the filter b.
In example 2, the porosity of each of the filters a and b was 65%.
Test example 1
Taking city tap water, detecting the water quality by using a water quality TDS detection pen of a certain brand, filtering the city tap water by using the water purification filters prepared in the embodiments 1-3 respectively, filtering the city tap water by using filters 1 and 2 of different brands which are sold commonly and used as comparative examples, respectively detecting TDS values before and after filtering, wherein detection data are shown in a table 1;
TABLE 1
The TDS value is also called total dissolved solids (mg/L), and indicates how many mg of dissolved solids are dissolved in 1L of water, which can reflect the purity of water quality to a certain extent.
As can be seen from the data in Table 1, the water purification filter prepared by the method has better filtering effect than the two brands sold in the market, and the water quality after being filtered by the water purification filter prepared by the method has higher purity.
Test example 2
Taking city tap water, detecting the water quality by using a water quality TDS detection pen of a certain brand, enabling the tap water to flow through the water purification filter prepared in the embodiment 1-3, the filter 3 and the filter 4 which are sold commonly and are of different brands, wherein the daily flow is kept at 1 ton, the TDS value after filtration is detected after one month, two months and three months respectively, the durability f of the filter is calculated according to the TDS value, and the f is (TDS value before filtration-TDS value after n months)/TDS value before filtration, and the test data are shown in table 2;
TABLE 2
As can be seen from the data in table 2, the water purification filter prepared in this example has a small variation in the durability values after one month, two months and three months, and the average durability after three months is 80% or more, whereas comparative examples 1 and 2 have a large decrease in the durability per month after one month, two months and three months, and the average durability after three months is about 32% in comparative example 1 and about 50% in comparative example 2, which are not ideal in the present invention.
Finally, it should be noted that the above-mentioned preferred embodiments of the present invention are provided merely to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. A preparation method of a household water purification filter is characterized by comprising the step of bonding two filters a and b which are made of different raw materials to form the water purification filter with different filter pore sizes.
2. The method of claim 1, wherein the filter a has a filter pore size of 50 to 100nm, and the filter b has a filter pore size of 2 to 49 nm.
3. A method for preparing a water purifying filter for home use according to claim 1, wherein the method for preparing the filter a comprises:
s1, taking the seaweed sedimentary minerals to react under an acidic condition, wherein the reaction temperature is 45-65 ℃, and the reaction time is 2-6 hours, so as to obtain oxidized seaweed sedimentary minerals;
s2, mixing the oxidized marine algae sedimentary minerals, activated carbon, a binder and a wetting agent into pure water according to a proportion, and uniformly mixing to prepare slurry;
s3, placing the slurry into a vibration dehydrator to dehydrate the slurry to 8-15%;
and S4, putting the dehydrated slurry into a mold for pressure forming, and simultaneously heating and drying the mold filled with the slurry to obtain the filter a.
4. The method of claim 3, wherein the acidic condition is that the marine algae mineral deposit is placed in a dilute hydrochloric acid solution having a pH of 3.5 to 5.5 at S1.
5. A method for preparing a household water filter according to claim 3, wherein in S2, 15-20 parts of oxidized marine algae mineral deposit, 10-15 parts of activated carbon, 4-8 parts of binder, 3-7 parts of wetting agent and 50-100 parts of pure water are mixed and stirred for 10-20 min, and the stirring speed is 120-300 r/m.
6. The method for preparing a household water filter according to claim 3, wherein in S4, the mold filled with the slurry is subjected to stepwise heating treatment, wherein the first heating is performed to 85-100 ℃ for 10-30 min, the second heating is performed to 100-150 ℃ for 15-30 min, and the third heating is performed to more than 200 ℃ until the slurry is completely dried.
7. The method of claim 3, wherein the mold filled with the slurry is immediately quenched with gas or liquid after being dried by heating at S4, thereby increasing the hardness and porosity of the filter a.
8. A method for preparing a water purifying filter for home use according to claim 1, wherein the method for preparing the filter b comprises: respectively micronizing inorganic ceramic material and Maifanitum, mixing inorganic ceramic material powder, Maifanitum powder, binder, dispersant and wetting agent with pure water, making into slurry, oven drying, and sintering to obtain filter b.
9. The method for preparing a household water purification filter according to claim 8, wherein the filter b is prepared by mixing 12-20 parts of inorganic ceramic powder, 12-18 parts of medical stone powder, 4-9 parts of binder, 2-5 parts of dispersant, 2-4 parts of wetting agent and 30-50 parts of pure water.
The method for preparing a water purifying filter for home use according to claim 1, wherein the porosity of each of the filter a and the filter b is 40 to 70%.
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| CN201911060692.8A CN110818058A (en) | 2019-11-01 | 2019-11-01 | Preparation method of household water purification filter |
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| CN201911060692.8A CN110818058A (en) | 2019-11-01 | 2019-11-01 | Preparation method of household water purification filter |
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| CN110818058A true CN110818058A (en) | 2020-02-21 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101088921A (en) * | 2007-06-30 | 2007-12-19 | 周衍贵 | Water purifier |
| CN103496769A (en) * | 2013-10-13 | 2014-01-08 | 罗满知 | Water-purifying filter element base material composition capable of resisting bacteria, sterilizing and supplementing mineral substances of human body and application thereof |
| CN106348780A (en) * | 2016-08-31 | 2017-01-25 | 揭阳市揭东恒成陶瓷实业有限公司 | Medical stone porous ceramic and preparation method thereof |
| CN206408014U (en) * | 2017-01-12 | 2017-08-15 | 广州中鹏康体设备有限公司 | A kind of three-dimensional filter |
| CN107243324A (en) * | 2017-07-04 | 2017-10-13 | 合肥市大卓电力有限责任公司 | A kind of efficient water purification active carbon and preparation method thereof |
| CN208345919U (en) * | 2018-04-24 | 2019-01-08 | 江苏享佳健康科技股份有限公司 | Household multi-stage filtering water purifier |
-
2019
- 2019-11-01 CN CN201911060692.8A patent/CN110818058A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101088921A (en) * | 2007-06-30 | 2007-12-19 | 周衍贵 | Water purifier |
| CN103496769A (en) * | 2013-10-13 | 2014-01-08 | 罗满知 | Water-purifying filter element base material composition capable of resisting bacteria, sterilizing and supplementing mineral substances of human body and application thereof |
| CN106348780A (en) * | 2016-08-31 | 2017-01-25 | 揭阳市揭东恒成陶瓷实业有限公司 | Medical stone porous ceramic and preparation method thereof |
| CN206408014U (en) * | 2017-01-12 | 2017-08-15 | 广州中鹏康体设备有限公司 | A kind of three-dimensional filter |
| CN107243324A (en) * | 2017-07-04 | 2017-10-13 | 合肥市大卓电力有限责任公司 | A kind of efficient water purification active carbon and preparation method thereof |
| CN208345919U (en) * | 2018-04-24 | 2019-01-08 | 江苏享佳健康科技股份有限公司 | Household multi-stage filtering water purifier |
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