CN1076176A - High-efficient compound adsorbent for defluorination of drinking water - Google Patents
High-efficient compound adsorbent for defluorination of drinking water Download PDFInfo
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- CN1076176A CN1076176A CN 93102701 CN93102701A CN1076176A CN 1076176 A CN1076176 A CN 1076176A CN 93102701 CN93102701 CN 93102701 CN 93102701 A CN93102701 A CN 93102701A CN 1076176 A CN1076176 A CN 1076176A
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- defluorination
- compound adsorbent
- zeolite
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- activated alumina
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Abstract
The present invention relates to the compound method of a kind of de-fluoridation adsorbent of tap water.This high-efficient compound adsorbent for defluorination, it is mixed by the animal bone powder that keeps certain particle size, activated alumina, gac and zeolite and forms.High-efficient compound adsorbent for defluorination of the present invention has high adsorption capacity, fluorine removing rate height, lower-price characteristic.
Description
The invention belongs to the compound method of drinking water defluorination sorbent material.
In some areas of China, fluorine content is finished up to more than the 5.0mg/l in the tap water, the fluorine-containing index of defined in the national head and shoulders above drinking water standard.Fluorine too high levels in the tap water, its hazardness is on record, for example, can make people's tooth blackening, produces deformity, also can make people's Digestive tract generation obstacle, also can make people Yi Zaocheng off one's dot or the like.
At present, the defluorination method of tap water, domestic is based on absorption method, has occurred reverse osmosis method abroad in recent years.With regard to adsorption method, majority all is to adopt simple a kind of sorbent material to realize the adsorption-defluorination process, and for example, having plenty of the activated alumina of employing is sorbent material, and having plenty of the aluminum chloride of employing is sorbent material, and having plenty of the zeolite of employing is sorbent material.These adopt the defluorination method of simple a kind of sorbent material, also have unsatisfactory part in the process of its enforcement, and for example, the adsorbents adsorb ability and the loading capacity that have are low, and fluorine removing rate is poor, the sorbent material price comparison costliness that has.For this reason, seek a kind of dynamical de-fluoridation adsorbent, then imperative, if this is willing to such an extent that repay, also can bring new Gospel to high fluoride water district people surely.
The objective of the invention is to overcome the weak point of existing de-fluoridation adsorbent, and a kind of high-efficient compound adsorbent for defluorination is provided, for the defluorination of tap water is opened up a new way.
Main points of the present invention are compound methods of high-efficient compound adsorbent for defluorination.This high-efficient compound adsorbent for defluorination, it is mixed by the bone meal of animal and activated alumina, activated carbon, zeolite, wherein require in the animal bone powder major ingredient calcium phosphate at 45-70%, lime carbonate all is weight percentage at 20-45%(), the compound adsorbent each component weight percent that mixes is: bone meal is 70-90%, activated alumina is 2-10%, and activated carbon is 5-10%, and zeolite is 2-10%.
The concrete process for preparation of the present invention is: at first be that the granularity of each component material is screened.This step is very necessary, because the globule size of sorbent material determines its adsorption specific surface area, if granularity is excessive, its adsorption specific surface area naturally can be little, but if undersized, though adsorption specific surface area can increase, net is considered in required supporting then can be overstocked, water is when passing through like this, and its resistance to flow strengthens.In addition, the undersized of sorbent material also can cause the loss of sorbent material.Therefore, the globule size of each component material should be selected by following requirement.The granularity of bone meal is 0.3-0.8mm, and the granularity of activated alumina is 0.3-0.8mm, and the granularity of activated carbon is 1-2mm, and the granularity of zeolite is 2-4mm.After the screening is to mix equably, be about to the good various materials of screening, mix equably by above-mentioned weight percent, mixing the compound adsorbent of forming the back can use, during use, this sorbent material is placed on the supporting filter screen in container or the pipeline, fills certain altitude, when fluorine-containing former water passes through this adsorbent layer, then can reach the purpose of defluorination.
One of embodiment of the invention: get and contain calcium phosphate 61%, lime carbonate 24%, the bone meal 78g of its granularity about 0.5mm, get the activated alumina 7g of granularity about 0.5mm, get the activated carbon 8g of granularity about 1.2mm, get granularity, then they are mixed equably the compound adsorbent for defluorination of composition at 2.5mm left and right sides zeolite 7g, the adsorptive power of this sorbent material can reach 3.95mg/g, and promptly every gram adsorbents adsorb fluorine amount is 3.95 milligrams.
Two of the embodiment of the invention: get and contain 65% calcium phosphate, contain 20% lime carbonate, the bone meal 84g of its granularity about 0.7mm, get the activated alumina 5g of granularity about 0.5mm, get the activated carbon 6g of granularity about 1.5mm, get the zeolite 5g of granularity about 3.0mm, then they are mixed equably the compound adsorbent for defluorination of composition, the adsorptive power of this sorbent material can reach 4.20mg/g, and it is 4.20 milligrams that promptly every gram sorbent material can adsorb the fluorine amount.
High-efficient compound adsorbent for defluorination of the present invention is compared with existing de-fluoridation adsorbent, has high adsorption capacity, and defluorination effect is good, low-cost characteristics. Its adsorption capacity can reach 4.5mg/g, and the adsorption capacity of activated alumina only is 1.12mg/g. Under identical adsorption conditions, (namely in diameter was the 50mm container, the adsorbent packed height was 200mm, and fluorine content is identical in the water, and the treating capacity of water is identical), adsorption rate of the present invention can reach 99.95%, and the adsorption rate of activated alumina then is 68.66%. The price of compound adsorbent of the present invention only is about 1/3rd of activated alumina.
Claims (3)
1, the compound method of the compound absorption agent of a kind of tap water high-effective defluorination, it is characterized in that: it is by mainly containing calcium phosphate, the animal bone powder of lime carbonate and maintenance certain particle size, and keep activated alumina, activated carbon, the zeolite of certain particle size to mix, wherein each component accounts for the per-cent of gross weight and is:
Bone meal: 70-90%,
Activated alumina: 2-10%,
Activated carbon: 5-10%,
Zeolite: 2-10%.
2, by the said high-efficient compound adsorbent for defluorination of claim 1, it is characterized in that: the animal bone powder that is adopted, wherein contained calcium phosphate is 45-70%, contained lime carbonate is 20-45%.(being weight percentage)
3, by the said high-efficient compound adsorbent for defluorination of claim 1, it is characterized in that: the granularity of the each component material that is adopted is:
Bone meal: 0.3-0.8mm
Activated alumina: 0.3-0.8mm
Activated carbon: 1-2mm
Zeolite: 2-4mm
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93102701 CN1076176A (en) | 1993-03-15 | 1993-03-15 | High-efficient compound adsorbent for defluorination of drinking water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93102701 CN1076176A (en) | 1993-03-15 | 1993-03-15 | High-efficient compound adsorbent for defluorination of drinking water |
Publications (1)
| Publication Number | Publication Date |
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| CN1076176A true CN1076176A (en) | 1993-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93102701 Pending CN1076176A (en) | 1993-03-15 | 1993-03-15 | High-efficient compound adsorbent for defluorination of drinking water |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337930C (en) * | 2005-06-20 | 2007-09-19 | 许庆华 | Attapulgite defluorination agent |
| CN101791533A (en) * | 2010-03-12 | 2010-08-04 | 清华大学 | Preparation method of high-efficiency manganese and cerium composite adsorbent for removing fluorine in drinking water |
| CN101406823B (en) * | 2007-10-10 | 2010-11-03 | 宜兴市得力耐磨炉料有限公司 | Method for producing high-efficient defluorination active micropore ceramic stuffing |
| CN102107938A (en) * | 2011-01-10 | 2011-06-29 | 中国科学技术大学苏州研究院 | Method for removing fluorine from water |
| CN102596825A (en) * | 2009-08-13 | 2012-07-18 | 集水技术私人有限公司 | Water filtration sytem with activated carbon and zeolite |
| CN101626830B (en) * | 2007-03-21 | 2012-10-03 | Omya发展股份公司 | Surface treated calcium carbonate and its use in waste water treatment |
| CN102114402B (en) * | 2009-12-31 | 2013-01-09 | 中国科学院生态环境研究中心 | Defluorinating adsorbent and preparation method thereof |
| CN103058344A (en) * | 2009-11-13 | 2013-04-24 | 江苏永冠给排水设备有限公司 | Novel defluoridation filter material and production method thereof |
| CN101679077B (en) * | 2007-06-15 | 2013-05-08 | Omya发展股份公司 | Surface-reacted calcium carbonate in combination with hydrophobic adsorbent for water treatment |
| CN106698817A (en) * | 2016-12-06 | 2017-05-24 | 广州富生源环保工程有限公司 | Efficient rural domestic sewage purification and regeneration system |
-
1993
- 1993-03-15 CN CN 93102701 patent/CN1076176A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337930C (en) * | 2005-06-20 | 2007-09-19 | 许庆华 | Attapulgite defluorination agent |
| CN101626830B (en) * | 2007-03-21 | 2012-10-03 | Omya发展股份公司 | Surface treated calcium carbonate and its use in waste water treatment |
| CN101679077B (en) * | 2007-06-15 | 2013-05-08 | Omya发展股份公司 | Surface-reacted calcium carbonate in combination with hydrophobic adsorbent for water treatment |
| CN101406823B (en) * | 2007-10-10 | 2010-11-03 | 宜兴市得力耐磨炉料有限公司 | Method for producing high-efficient defluorination active micropore ceramic stuffing |
| CN102596825A (en) * | 2009-08-13 | 2012-07-18 | 集水技术私人有限公司 | Water filtration sytem with activated carbon and zeolite |
| CN102596825B (en) * | 2009-08-13 | 2016-03-02 | 集水技术私人有限公司 | There is the water filtering system of active carbon and zeolite |
| CN103058344A (en) * | 2009-11-13 | 2013-04-24 | 江苏永冠给排水设备有限公司 | Novel defluoridation filter material and production method thereof |
| CN102114402B (en) * | 2009-12-31 | 2013-01-09 | 中国科学院生态环境研究中心 | Defluorinating adsorbent and preparation method thereof |
| CN101791533A (en) * | 2010-03-12 | 2010-08-04 | 清华大学 | Preparation method of high-efficiency manganese and cerium composite adsorbent for removing fluorine in drinking water |
| CN102107938A (en) * | 2011-01-10 | 2011-06-29 | 中国科学技术大学苏州研究院 | Method for removing fluorine from water |
| CN102107938B (en) * | 2011-01-10 | 2012-10-17 | 中国科学技术大学苏州研究院 | Method for removing fluorine from water |
| CN106698817A (en) * | 2016-12-06 | 2017-05-24 | 广州富生源环保工程有限公司 | Efficient rural domestic sewage purification and regeneration system |
| CN106698817B (en) * | 2016-12-06 | 2020-08-11 | 广州富生源环保工程有限公司 | Rural domestic sewage high efficiency purifies regeneration system |
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