CN1204055C - Water purifying agent and its prepn process - Google Patents
Water purifying agent and its prepn process Download PDFInfo
- Publication number
- CN1204055C CN1204055C CN 02147691 CN02147691A CN1204055C CN 1204055 C CN1204055 C CN 1204055C CN 02147691 CN02147691 CN 02147691 CN 02147691 A CN02147691 A CN 02147691A CN 1204055 C CN1204055 C CN 1204055C
- Authority
- CN
- China
- Prior art keywords
- chitosan
- gac
- mixture
- mixed
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 7
- 239000012629 purifying agent Substances 0.000 title abstract description 3
- 229920001661 Chitosan Polymers 0.000 claims abstract description 29
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 24
- 239000000243 solution Substances 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000012153 distilled water Substances 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims description 12
- 239000006104 solid solution Substances 0.000 claims description 12
- 238000000746 purification Methods 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 7
- 239000011324 bead Substances 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 239000011259 mixed solution Substances 0.000 abstract description 4
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- 239000002594 sorbent Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 150000007523 nucleic acids Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The present invention relates to a water purifying agent and a preparing method thereof. Chitosan and activated carbon are firstly mixed according to the proportion of 1:1 to 9:1, and 3 to 6g of mixtures is dissolved into 100 ml of HAC solution with the concentration of 0.7 to 1.2 % to stir and dissolve. Then, the mixed solution is dripped into alkaline solidifying solution consists of 40% of sodium hydroxide and etanol mixed solution with the proportion of 1:25 to 1:30, and the gradually dripped mixed solution is coagulated into small ball shape in the solidifying solution. After washed by distilled water, small balls are dried at a room temperature and are continuously dried for 2 to 3 hours in a baking oven with the temperature of 30 to 70 DEG C, and granular mixtures with the corresponding proportion of the chitosan and the activated carbon are obtained. The agent has the characteristics of stable preparing technology, good removing effect on organic pollutants, recycle, no secondary pollution, etc. The agent is a new water purifying material with high efficiency, cleanness and safety.
Description
Technical field
What the present invention relates to is a kind of water purification agent of energy adsorb organic compound and the method for preparing this water purification agent thereof, belongs to the organism sorbent material class of water treatment.
Background technology
It is some harmful and noxious substances in the sorbing material planar water that present most of water purifying plant all adopts gac.But acticarbon in use not only can influence the colourity of water, and the difficult filtration of the gac of its powdered, easily causes the secondary pollution of water.Usually the charcoal absorption material is applicable to the low-molecular-weight organism of absorption, and is relatively poor to the adsorption effect of some the micro-macromolecule organics that exist in the water and polar organic matter.
Summary of the invention
The object of the present invention is to provide a kind of healthy and safe water-purifying material, i.e. water purification agent and the preparation method who combines by efficient chitosan and gac.This water purification agent comprises that mainly chitosan is a substrate material, it is mixed with gac and solidifies and becomes granular mixture, and wherein the mixed weight per-cent of chitosan and gac is 1: 1-9: 1.
The mixed weight ratio of described chitosan and gac is 1: 1, and also contains HCl solute and alkaline cured article in mixture.
A kind of method for preparing water purification agent, it be earlier with chitosan and gac by 1: 1-9: 1 mixed, taking by weighing the 3-4g mixture is dissolved in the 100ml0.7-1.2%HCl solution, stir, dissolving, then mixing solutions is splashed into by 1: 25-1: in the alkaline solid solution that 30 40% sodium hydroxide and alcohol mixeding liquid are formed, dropwise the mixing solutions of Jia Ruing congeals into coccoid in solid solution, with also at room temperature air-dry behind the distilled water wash bead, in 30-70 ℃ baking oven continuous drying 2-3 hour again, obtain the granular mixture of chitosan and gac.
The part by weight that described chitosan and gac were pressed earlier 1: 1 mixes, taking by weighing the 4g mixture is dissolved in the HCl solution of 70ml1%, stir, dissolving, then mixing solutions is splashed in the alkaline solid solution of forming by 1: 30 40% sodium hydroxide and alcohol mixeding liquid, be solidified into coccoid and air-dry after, continuous drying is 3 hours in 70 ℃ baking oven, obtains the granular mixture of chitosan and gac.
It is substrate material that the present invention selects chitosan, it is a kind of natural polymers, nontoxic, readily biodegradable, can not cause secondary pollution and aboundresources, it contains a large amount of hydroxyls and amino, can it be removed from the aqueous solution by hydrogen bond, covalent linkage or coordinate bond and organic molecule mortise.Chitosan not only can adsorb some low molecule organic matters, can also adsorb some macromolecule organics, as protein, amino acid, nucleic acid, lipid acid etc.The present invention combines chitosan and gac, has overcome the colourity that gac influences water, is difficult for shortcomings such as filtrations, and it can remove wider organic compound, has efficient, cleaning, safe a series of technique effects such as water purification effect.
Embodiment
The present invention will be described in detail below in conjunction with embodiment: embodiment one, earlier chitosan is mixed with the part by weight of gac by 1: 1, taking by weighing the 4g mixture is dissolved in the 70ml1%HCl solution, stir, dissolving, then mixing solutions is splashed in the alkaline solid solution of forming by 1: 30 40% sodium hydroxide and alcohol mixeding liquid, dropwise the chitosan of Jia Ruing---the gac mixing solutions congeals into coccoid in solid solution, with also at room temperature air-dry behind the distilled water wash bead, 70 ℃ baking oven continuous drying 3 hours, obtaining mass ratio was 1: 1 the chitosan and the sorbent material of activated carbon granule shape mixture again.
Embodiment two, chitosan and gac are pressed 1: 3 mixed by elder generation, taking by weighing the 3g mixture is dissolved in the 80ml0.7%HCl solution, stir, dissolving, then mixing solutions is splashed in the alkaline solid solution of forming by 1: 25 40% sodium hydroxide and alcohol mixeding liquid, dropwise the mixing solutions of Jia Ruing congeals into coccoid in solid solution, with also at room temperature air-dry behind the distilled water wash bead, 30 ℃ baking oven continuous drying 2.5 hours, obtaining mass ratio was 3: 1 the chitosan and the sorbent material of activated carbon granule shape mixture again.
Embodiment three, chitosan and gac are pressed 9: 1 mixed by elder generation, taking by weighing the 6g mixture is dissolved in the 130ml1.2%HCl solution, stir, dissolving, then mixing solutions is splashed in the alkaline solid solution of forming by 1: 28 40% sodium hydroxide and alcohol mixeding liquid, dropwise the mixing solutions of Jia Ruing congeals into coccoid in solid solution, with also at room temperature air-dry behind the distilled water wash bead, again 50 ℃ baking oven continuous drying 2 hours, obtain mass ratio and be 9: 1 chitosans and activated carbon granule shape mixture sorbent material.
The present invention adopts certain density hydrochloric acid that chitosan is dissolved fully, to be made into the mixed solution of chitosan and gac.Stable preparation process of the present invention, removal effect to organic pollutant is good, and can repeatedly reclaim use, general as long as can use repeatedly through after 30-70 ℃ of drying treatment, basic non-secondary pollution, therefore this combined water purifying agent has wide application prospect in the drink water purifying field.
Claims (4)
1, a kind of water purification agent, it is characterized in that it comprises that mainly chitosan is a substrate material, it is mixed with gac and solidify and become granular mixture, wherein the mixed weight of chitosan and gac is 1: 1-9: 1, and in mixture, also contain HCl solute and alkaline cured article.
2, water purification agent according to claim 1, the mixed weight ratio that it is characterized in that described chitosan and gac is 1: 1.
3, a kind of method for preparing water purification agent as claimed in claim 1 or 2, it be earlier with chitosan and gac by 1: 1-9: 1 mixed, taking by weighing the 3-4g mixture is dissolved in the 100ml0.7-1.2%HCl solution, stir, dissolving, then mixing solutions is splashed into by 1: 25-1: in the alkaline solid solution that 30 40% sodium hydroxide and alcohol mixeding liquid are formed, dropwise the mixing solutions of Jia Ruing congeals into coccoid in solid solution, with also at room temperature air-dry behind the distilled water wash bead, in 30-70 ℃ baking oven continuous drying 2-3 hour again, obtain the granular mixture of chitosan and gac.
4, the method for preparing water purification agent according to claim 3, it is characterized in that the first part by weight by 1: 1 of described chitosan and gac mixes, taking by weighing the 4g mixture is dissolved in the HCl solution of 70ml1%, stir, dissolving splashes into mixing solutions in the alkaline solid solution of being made up of 1: 30 40% sodium hydroxide and alcohol mixeding liquid then, be solidified into coccoid and air-dry after, continuous drying is 3 hours in 70 ℃ baking oven, obtains the granular mixture of chitosan and gac.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02147691 CN1204055C (en) | 2002-10-28 | 2002-10-28 | Water purifying agent and its prepn process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02147691 CN1204055C (en) | 2002-10-28 | 2002-10-28 | Water purifying agent and its prepn process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1417133A CN1417133A (en) | 2003-05-14 |
| CN1204055C true CN1204055C (en) | 2005-06-01 |
Family
ID=4751240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02147691 Expired - Fee Related CN1204055C (en) | 2002-10-28 | 2002-10-28 | Water purifying agent and its prepn process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1204055C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101940912B (en) * | 2010-09-27 | 2012-05-09 | 浙江农林大学 | Production method of adsorbent coupling chitosan and bamboo charcoal by using sodium alginate |
| CN102580690B (en) * | 2012-03-06 | 2014-07-02 | 杭州师范大学 | Nano-aperture granular adsorbent and preparation and application thereof |
| CN105214609B (en) * | 2015-10-09 | 2018-03-09 | 北京金达威活性炭科技有限公司 | A kind of processing method for the water purifier granular activated carbon for adding chitosan |
| CN108745299A (en) * | 2018-05-17 | 2018-11-06 | 菏泽学院 | A kind of preparation method of special appearance adsorbent |
| CN109876780B (en) * | 2019-02-02 | 2022-02-18 | 浙江省环境科技有限公司 | Phosphorus removal adsorbent and preparation method thereof |
| CN110496605A (en) * | 2019-08-26 | 2019-11-26 | 南京大学 | A kind of chitosan-biology carbon composite and application method |
-
2002
- 2002-10-28 CN CN 02147691 patent/CN1204055C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1417133A (en) | 2003-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114405471B (en) | Aluminum-iron bimetal modified biochar dephosphorizing material and preparation method thereof | |
| CN101347719A (en) | Chitosan/phyllosilicate nanocomposite porous crosslinked microsphere adsorbent and preparation method thereof | |
| CN102658097B (en) | Preparation method of efficient dephosphorizing porous particle adsorbent | |
| CN104587956B (en) | A kind of preparation method being coated with the graphene oxide composite granule coated nano zero valence iron as carrier with multilamellar activated carbon | |
| CN110947365B (en) | A kind of preparation method and application of Form-Ce-MOFS phosphorus removal material | |
| CN108262025B (en) | Preparation method of porous nano composite material and application of porous nano composite material in heavy metal ion removal | |
| CN111729644A (en) | A kind of biochar-bentonite porous composite ball and preparation method thereof | |
| CN110330082A (en) | A kind of room temperature preparation method and applications of iron carbon particle | |
| CN105921763B (en) | The preparation method of sodium alginate/inorganic mineral combined loading type nano zero valence iron | |
| CN111905698A (en) | A kind of modified bentonite-sodium alginate composite gel ball and its preparation method and application as adsorption material | |
| CN108816204A (en) | A kind of preparation method of copper ion imprinted crosslinked chitosan microballoon | |
| CN1204055C (en) | Water purifying agent and its prepn process | |
| CN112479301A (en) | Water pollution treatment material of molybdenum disulfide-loaded chitosan microspheres and preparation method thereof | |
| CN111450805A (en) | A kind of chitosan-based lead ion imprinted adsorbent and preparation method thereof | |
| CN108654703A (en) | A kind of preparation method of Gemini surface active agent pillared modification montmorillonite | |
| CN103435737A (en) | Method for preparing adsorption resin through using (methyl)acrylic acid production wastewater as raw material | |
| CN108607517B (en) | Lanthanum-loaded chitosan magnetic microsphere compound and preparation method and application thereof | |
| CN104549172A (en) | Method for preparing sulfydryl-modified chitosan short hole microspheres | |
| CN112675917B (en) | Preparation method of sludge/garbage fly ash based dioxin low-temperature degradation catalyst | |
| CN117225384B (en) | Composite material capable of efficiently adsorbing formaldehyde and noble metal as well as preparation method and application thereof | |
| CN112844303A (en) | Water purification sludge/sodium silicate composite adsorbent, preparation method thereof and application thereof in treating ammonia nitrogen in water body | |
| CN118663230A (en) | Biochar based on ion imprinting selective adsorption of phosphate as well as preparation method and application thereof | |
| CN114700065A (en) | Waste resin carbon sphere composite ozone catalyst and preparation method and application thereof | |
| CN112774640A (en) | Adsorbent for treating sewage and secondarily utilizing sewage for soil improvement and preparation method and application thereof | |
| CN101733077B (en) | Method for preparing ammonia nitrogen sorbent by utilizing abandoned strawberry leaves and application of sorbent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |