CN100464816C - Filter core for removing nitrite-nitrogen from drinking water and method for preparing same - Google Patents
Filter core for removing nitrite-nitrogen from drinking water and method for preparing same Download PDFInfo
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- CN100464816C CN100464816C CNB2006101673606A CN200610167360A CN100464816C CN 100464816 C CN100464816 C CN 100464816C CN B2006101673606 A CNB2006101673606 A CN B2006101673606A CN 200610167360 A CN200610167360 A CN 200610167360A CN 100464816 C CN100464816 C CN 100464816C
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- filter core
- drinking water
- nitrite nitrogen
- powder
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- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 239000003651 drinking water Substances 0.000 title claims abstract description 28
- 235000020188 drinking water Nutrition 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title description 6
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 239000011347 resin Substances 0.000 claims description 30
- 229920005989 resin Polymers 0.000 claims description 30
- WRTMQOHKMFDUKX-UHFFFAOYSA-N triiodide Chemical compound I[I-]I WRTMQOHKMFDUKX-UHFFFAOYSA-N 0.000 claims description 30
- 239000000843 powder Substances 0.000 claims description 24
- -1 polyethylene Polymers 0.000 claims description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 239000004698 Polyethylene Substances 0.000 claims description 12
- 229920000573 polyethylene Polymers 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 8
- 238000005245 sintering Methods 0.000 claims description 8
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- NBOCQTNZUPTTEI-UHFFFAOYSA-N 4-[4-(hydrazinesulfonyl)phenoxy]benzenesulfonohydrazide Chemical compound C1=CC(S(=O)(=O)NN)=CC=C1OC1=CC=C(S(=O)(=O)NN)C=C1 NBOCQTNZUPTTEI-UHFFFAOYSA-N 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 235000006408 oxalic acid Nutrition 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 27
- 238000001914 filtration Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 206010011703 Cyanosis Diseases 0.000 description 1
- 206010012373 Depressed level of consciousness Diseases 0.000 description 1
- 206010013975 Dyspnoeas Diseases 0.000 description 1
- 108010061951 Methemoglobin Proteins 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 231100000219 mutagenic Toxicity 0.000 description 1
- 230000003505 mutagenic effect Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 125000000467 secondary amino group Chemical class [H]N([*:1])[*:2] 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000008673 vomiting Effects 0.000 description 1
Landscapes
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a filter element which can remove the nitrite nitrogen of drinking water, and relative production, wherein it can effectively remove nitrite nitrogen and purify drinking water, to protect people.
Description
Technical field
The present invention relates to a kind of filter core, particularly relate to a kind of filter core of removing nitrite nitrogen in the drinking water and preparation method thereof.
Background technology
Nitrite nitrogen extensively is present in occurring in nature as a kind of environmental contaminants, especially in vaporous water, surface water and the underground water.The pollution source of nitrite nitrogen is a lot of in the environment, as artificial chemical fertilizer; Sanitary sewage, house refuse; Factories such as food, fuel, oil refining discharge a large amount of ammonia discarded objects that contain and enter in the environment through all forming nitrite nitrogen after biological, the chemical conversion; Burning petroleum class A fuel A, coal, natural gases such as automobile, train, steamer, aircraft, boiler, domestic burners produce a large amount of nitrogen oxide and can form nitrate nitrogen drop in ground and the water body behind the precipitation leaching.Nitrite nitrogen can make the people directly poison, nitrite nitrogen and blood of human body effect, form ferrihemoglobin, thereby make blood lose function of carrying oxygen, people's anoxic is poisoned, the lighter's giddy, palpitaition, vomiting, cyanotic lips, are twitched, are short of breath at weight person's obnubilation, but rescue untimely threat to life.Moreover, nitrite nitrogen forms nitrosamines with the effect of secondary amine class inside and outside human body, and it is carcinogenic, teratogenesis, mutagenic material when reaching doses in human body, but the serious harm health.
Traditional nitrite nitrogen removal method mainly contains ion-exchange and membrane separation process.Though these two kinds of methods can be handled, and still have many deficiencies: the disposal cost height, the water rate of recovery is low, as only be 30%-60%.And the water that adopts these two kinds of methods to handle generally all needs preliminary treatment and last handling process, is not easy to promote in family's water purifier.
Summary of the invention
The present invention provides a kind of drink water purifying that is used in order to address the above problem, and improves water quality, especially can effectively remove the filter core of nitrite nitrogen in the drinking water, prevents that effectively nitrite nitrogen from working the mischief to human body, the protection health.
An object of the present invention is to provide a kind of filter core of removing nitrite nitrogen in the drinking water.
Another object of the present invention provides the preparation method of the filter core of nitrite nitrogen in the described removal drinking water.
The objective of the invention is to be achieved through the following technical solutions:
A kind of filter core of removing nitrite nitrogen in the drinking water, it is formed by the feedstock production that comprises following parts by weight;
The polyethylene powder 100-200 of activated carbon powder 10-150 1,500,000-7,000,000 molecular weight
Atlapulgite powder 10-100 triiodide resin 100-300
Gas generation agent 20-100
Preferably, a kind of filter core of removing nitrite nitrogen in the drinking water, it is formed by the feedstock production that comprises following parts by weight;
The polyethylene powder 120-180 of activated carbon powder 50-100 1,500,000-7,000,000 molecular weight
Atlapulgite powder 30-80 triiodide resin 160-250
Gas generation agent 30-70
More preferably, a kind of filter core of removing nitrite nitrogen in the drinking water, it is formed by the feedstock production that comprises following parts by weight;
The polyethylene powder 150 of activated carbon powder 70 150 ten thousand-7,000,000 molecular weight
Atlapulgite powder 30 triiodide resins 200
Gas generation agent 40
Activated carbon powder described in the present invention is the medicinal active powdered carbon, has the effect of efficient absorption chemical fertilizer, residues of pesticides, heterochromatic peculiar smell, chlorine and heavy metals such as lead and mercury, and its order number is the 60-180 order.
Polyethylene powder described in the present invention has the effect of powerful static dynamic absorption, can capture trickle, superfine particle that microfiltration can not filtration resistance, and its order number is the 20-200 order, and molecular weight is 1,500,000-7,000,000, and preferred, molecular weight is 2,500,000-4,000,000.
Atlapulgite powder described in the present invention has the effect of removing nitrite nitrogen, and its order number is the 100-300 order.
Triiodide resin described in the present invention can effectively be removed the nitrite nitrogen in the drinking water.
Gas generation agent described in the present invention is food-grade carbonic hydroammonium, Celogen Az, oxalic acid, can play pore-creating and make the effect in chamber, and is preferred, food-grade carbonic hydroammonium.
A kind of preparation method who removes the filter core of nitrite nitrogen in the drinking water of the present invention, it may further comprise the steps;
A, take by weighing each raw material by formula ratio, earlier that triiodide resin is standby, after all the other each raw material mixing and stirring, insert in the tubular die, at high temperature through sinter molding, the demoulding to the normal temperature of drying in the air promptly becomes the tubular structure filter core with regulation wall thickness, height of porous;
B, this naked filter core endoporus lining two-layer nonwoven, the skin nonwoven of double-baging, wrap polypropylene porous net at skin again, the end cap of atresia on filter core one end is bonding then, keep flat the permeable nonwoven of one deck in again from the filter core other end toward endoporus, then in endoporus, insert the triiodide resin of A step, on triiodide resin, keep flat the permeable nonwoven of one deck again, in the process of handling water, run off to prevent triiodide resin; At last at the filter core bonding end cap that centre bore is arranged of an end of cohesive end lid not.During use, with filter core one end that is stained with porose end cap up, be positioned in stainless steel or the plastic casing, the filter core external-compression type used with the water source.
Sintering temperature is at 200-300 ℃ among a kind of preparation method who removes the filter core of nitrite nitrogen in the drinking water of the present invention, and sintering time is 120-160 minute, dries in the air behind the sintering to the 40-60 ℃ of demoulding.
Of the present inventionly a kind ofly remove that the filter core of nitrite nitrogen has in purifying drinking water in the drinking water, can effectively remove nitrite nitrogen in the drinking water, effectively prevent the harm that nitrite nitrogen causes human body, the protection health.
The specific embodiment
Following examples are in order further to describe the present invention for example, rather than limit the present invention by any way.
Embodiment 1
Medicinal active powdered carbon (100 order) 70g triiodide resin 200g
Atlapulgite powder (250 order) 30g food-grade carbonic hydroammonium 40g
The polyethylene powder of 4,000,000 molecular weight (100 order) 150g
Its preparation method is as follows:
A, take by weighing each raw material by formula ratio, earlier that triiodide resin is standby, after all the other each raw material mixing and stirring, insert in the tubular die, at 250 ℃ of following sintering after 150 minutes, the demoulding after 60 ℃ of drying in the air.Promptly become the tubular structure filter core of porous;
B, this naked filter core endoporus lining two-layer nonwoven, the skin nonwoven of double-baging, wrap polypropylene porous net at skin again, the end cap of atresia on filter core one end is bonding then, keep flat the permeable nonwoven of one deck in again from the filter core other end toward endoporus, then in endoporus, insert the triiodide resin of A step, on triiodide resin, keep flat the permeable nonwoven of one deck again; At last at the filter core bonding end cap that centre bore is arranged of an end of cohesive end lid not.
Embodiment 2
Medicinal active powdered carbon (150 order) 150g triiodide resin 100g
Atlapulgite powder (150 order) 20g food-grade carbonic hydroammonium 20g
The polyethylene powder of 5,000,000 molecular weight (200 order) 180g
Its preparation method is as follows:
A, take by weighing each raw material by formula ratio, earlier that triiodide resin is standby, after all the other each raw material mixing and stirring, insert in the tubular die, at 260 ℃ of following sintering after 130 minutes, the demoulding after 45 ℃ of drying in the air.Promptly become the tubular structure filter core of porous;
B, this naked filter core endoporus lining two-layer nonwoven, the skin nonwoven of double-baging, wrap polypropylene porous net at skin again, the end cap of atresia on filter core one end is bonding then, keep flat the permeable nonwoven of one deck in again from the filter core other end toward endoporus, then in endoporus, insert the triiodide resin of A step, on triiodide resin, keep flat the permeable nonwoven of one deck again; At last at the filter core bonding end cap that centre bore is arranged of an end of cohesive end lid not.
Embodiment 3
Medicinal active powdered carbon (80 order) 100g triiodide resin 150g
Atlapulgite powder (120 order) 80g food-grade carbonic hydroammonium 30g
The polyethylene powder of 3,000,000 molecular weight (50 order) 110g
Its preparation method is as follows:
A, take by weighing each raw material by formula ratio, earlier that triiodide resin is standby, after all the other each raw material mixing and stirring, insert in the tubular die, at 230 ℃ of following sintering after 160 minutes, the demoulding after 50 ℃ of drying in the air.Promptly become the tubular structure filter core of porous;
B, this naked filter core endoporus lining two-layer nonwoven, the skin nonwoven of double-baging, wrap polypropylene porous net at skin again, the end cap of atresia on filter core one end is bonding then, keep flat the permeable nonwoven of one deck in again from the filter core other end toward endoporus, then in endoporus, insert the triiodide resin of A step, on triiodide resin, keep flat the permeable nonwoven of one deck again; At last at the filter core bonding end cap that centre bore is arranged of an end of cohesive end lid not.
Embodiment 4
Medicinal active powdered carbon (160 order) 30g triiodide resin 250g
Atlapulgite powder (200 order) 50g food-grade carbonic hydroammonium 90g
The polyethylene powder of 3,500,000 molecular weight (150 order) 160g
Its preparation method is as follows:
A, take by weighing each raw material by formula ratio, earlier that triiodide resin is standby, after all the other each raw material mixing and stirring, insert in the tubular die, at 280 ℃ of following sintering after 120 minutes, the demoulding after 60 ℃ of drying in the air.Promptly become the tubular structure filter core of porous;
B, this naked filter core endoporus lining two-layer nonwoven, the skin nonwoven of double-baging, wrap polypropylene porous net at skin again, the end cap of atresia on filter core one end is bonding then, keep flat the permeable nonwoven of one deck in again from the filter core other end toward endoporus, then in endoporus, insert the triiodide resin of A step, on triiodide resin, keep flat the permeable nonwoven of one deck again; At last at the filter core bonding end cap that centre bore is arranged of an end of cohesive end lid not.
Below a kind of effect of removing the filter core of nitrite nitrogen in the drinking-water by the survey report explanation embodiment of the invention 1;
Institute for Environment Hygiene and Health Related Product Safety, China CDC
Survey report
Sample is accepted numbering: the 2005KF0896 date: on December 9th, 2005
The sample title
The filter core of the embodiment of the invention 1Kind of inspection
Entrust
Interventions Requested
The filter element filtering performance testDate of manufacture
In September, 2005
Be subjected to the sample date
On November 28th, 2005Inspected the date
On December 8th, 2005
Assay:
According to " Drinking Water water quality treater safe and sanitary and functional evaluation scope _ general water quality treater " (2001), the structure filtering element (cartridge) of the embodiment of the invention 1 is carried out the filter element filtering performance test.At specified aquifer yield 2.00m
3In, running water is with flow 1.00L/min this filtering element (cartridge) 0m that flows through
3, 0.50m
3, 1.00m
3, 1.50m
3, 2.00m
3The time, this filter core sees Table 1-5 to the clearance of nitrite nitrogen
Water examination result (0m before and after the filter core of table 1 embodiment of the invention 1 filters
3)
| Go out water removal rate (%) clearance behind the mensuration project unit mark-on raw water filtration and require (%) |
| Nitrite nitrogen mg/L 0.182 0.001 99.5/ |
Water examination result (0.50m before and after the filter core of table 2 embodiment of the invention 1 filters
3)
| Go out water removal rate (%) clearance behind the mensuration project unit mark-on raw water filtration and require (%) |
| Nitrite nitrogen mg/L 0.151＜0.001 99.7/ |
Water examination result (1.00m before and after the filter core of table 3 embodiment of the invention 1 filters
3)
| Go out water removal rate (%) clearance behind the mensuration project unit mark-on raw water filtration and require (%) |
| Nitrite nitrogen mg/L 0.142 0.002 98.6/ |
Water examination result (1.50m before and after the filter core of table 4 embodiment of the invention 1 filters
3)
| Go out water removal rate (%) clearance behind the mensuration project unit mark-on raw water filtration and require (%) |
| Nitrite nitrogen mg/L 0.177＜0.001 99.7/ |
Water examination result (2.00m before and after the filter core of table 5 embodiment of the invention 1 filters
3)
| Go out water removal rate (%) clearance behind the mensuration project unit mark-on raw water filtration and require (%) |
| Nitrite nitrogen mg/L 0.150＜0.001 99.7/ |
Claims (9)
1. filter core of removing nitrite nitrogen in the drinking water, it is formed by the feedstock production that comprises following parts by weight;
The polyethylene powder 100-200 of activated carbon powder 10-150 1,500,000-7,000,000 molecular weight
Atlapulgite powder 10-100 triiodide resin 100-300
Gas generation agent 20-100.
2. a kind of filter core of removing nitrite nitrogen in the drinking water according to claim 1, it is formed by the feedstock production that comprises following parts by weight;
The polyethylene powder 120-180 of activated carbon powder 50-100 1,500,000-7,000,000 molecular weight
Atlapulgite powder 30-80 triiodide resin 160-250
Gas generation agent 30-70.
3. a kind of filter core of removing nitrite nitrogen in the drinking water according to claim 2, it is formed by the feedstock production that comprises following parts by weight;
The polyethylene powder 150 of activated carbon powder 70 150 ten thousand-7,000,000 molecular weight
Atlapulgite powder 30 triiodide resins 200
Gas generation agent 40.
4. a kind of filter core of removing nitrite nitrogen in the drinking water according to claim 1, wherein said activated carbon powder is the medicinal active powdered carbon, its order number is the 60-180 order.
5. a kind of filter core of removing nitrite nitrogen in the drinking water according to claim 4, the polyethylene powder of wherein said 1,500,000-7,000,000 molecular weight, molecular weight are 2,500,000-4,000,000, its order number is the 20-200 order.
6. a kind of filter core of removing nitrite nitrogen in the drinking water according to claim 5, wherein said gas generation agent are food-grade carbonic hydroammonium or Celogen Az or oxalic acid.
7. a kind of filter core of removing nitrite nitrogen in the drinking water according to claim 6, the order number of wherein said atlapulgite powder is the 100-300 order.
8. the described a kind of preparation method who removes the filter core of nitrite nitrogen in the drinking water of claim 1, it may further comprise the steps;
A, take by weighing each raw material by formula ratio, earlier that triiodide resin is standby, after all the other each raw material mixing and stirring, insert in the tubular die, through sinter molding, the demoulding after 40-60 ℃ of drying in the air promptly becomes the tubular structure filter core with regulation wall thickness and height of porous under 200-300 ℃;
B, this naked filter core endoporus lining two-layer nonwoven, the skin nonwoven of double-baging, wrap polypropylene porous net at skin again, the end cap of atresia on filter core one end is bonding then, keep flat the permeable nonwoven of one deck in again from the filter core other end toward endoporus, then in endoporus, insert the triiodide resin of A step, on triiodide resin, keep flat the permeable nonwoven of one deck again; At last at the filter core bonding end cap that centre bore is arranged of an end of cohesive end lid not.
9. a kind of preparation method who removes the filter core of nitrite nitrogen in the drinking water according to claim 8, wherein said sintering time is 120-160 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101673606A CN100464816C (en) | 2006-12-29 | 2006-12-29 | Filter core for removing nitrite-nitrogen from drinking water and method for preparing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101673606A CN100464816C (en) | 2006-12-29 | 2006-12-29 | Filter core for removing nitrite-nitrogen from drinking water and method for preparing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1994515A CN1994515A (en) | 2007-07-11 |
| CN100464816C true CN100464816C (en) | 2009-03-04 |
Family
ID=38249767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101673606A Active CN100464816C (en) | 2006-12-29 | 2006-12-29 | Filter core for removing nitrite-nitrogen from drinking water and method for preparing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100464816C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698509A (en) * | 2012-06-20 | 2012-10-03 | 福州大学 | Inorganic gelatinous active carbon filter core and preparation method thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527155A (en) * | 2011-10-20 | 2012-07-04 | 常州亚环环保科技有限公司 | Structural filter element for removing acraldehyde from drinking water and preparation method of structural filter element |
| CN103463869B (en) * | 2013-06-20 | 2015-08-19 | 天长市天乐电器厂 | A kind of Straw powder filter element and preparation method thereof |
| CN106673110B (en) * | 2017-01-10 | 2021-10-12 | 北京佳康尔水处理技术有限公司 | Filter element for purifying water, manufacturing method thereof and water dispenser |
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|---|---|---|---|---|
| CN1055869C (en) * | 1997-12-12 | 2000-08-30 | 马昆 | Structural filter element for purifying water and preparing process thereof |
| CN1075975C (en) * | 1999-05-21 | 2001-12-12 | 徐祝平 | Technology for producing filter element cup |
| US20060000763A1 (en) * | 2004-06-30 | 2006-01-05 | Rinker Edward B | Gravity flow carbon block filter |
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2006
- 2006-12-29 CN CNB2006101673606A patent/CN100464816C/en active Active
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|---|---|---|---|---|
| CN1055869C (en) * | 1997-12-12 | 2000-08-30 | 马昆 | Structural filter element for purifying water and preparing process thereof |
| CN1075975C (en) * | 1999-05-21 | 2001-12-12 | 徐祝平 | Technology for producing filter element cup |
| US20060000763A1 (en) * | 2004-06-30 | 2006-01-05 | Rinker Edward B | Gravity flow carbon block filter |
Non-Patent Citations (2)
| Title |
|---|
| 饮水复合材料除砷滤芯的研制与效果评价. 赵月朝，陈亚妍等.卫生研究，第33卷第4期. 2004 |
| 饮水复合材料除砷滤芯的研制与效果评价. 赵月朝，陈亚妍等.卫生研究，第33卷第4期. 2004 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698509A (en) * | 2012-06-20 | 2012-10-03 | 福州大学 | Inorganic gelatinous active carbon filter core and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1994515A (en) | 2007-07-11 |
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