CN108067194A - It is a kind of using sodium alginate and gelatin as the preparation method of the chitosan of carrier - Google Patents

It is a kind of using sodium alginate and gelatin as the preparation method of the chitosan of carrier Download PDF

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Publication number
CN108067194A
CN108067194A CN201611003093.9A CN201611003093A CN108067194A CN 108067194 A CN108067194 A CN 108067194A CN 201611003093 A CN201611003093 A CN 201611003093A CN 108067194 A CN108067194 A CN 108067194A
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CN
China
Prior art keywords
gelatin
chitosan
sodium alginate
mass percent
percent concentration
Prior art date
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Pending
Application number
CN201611003093.9A
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Chinese (zh)
Inventor
姜虎生
马会强
李爽
李长波
赵国铮
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Liaoning Shihua University
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Liaoning Shihua University
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Priority to CN201611003093.9A priority Critical patent/CN108067194A/en
Publication of CN108067194A publication Critical patent/CN108067194A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
    • 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
    • C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
    • B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C02F2101/22—Chromium or chromium compounds, e.g. chromates

Abstract

The present invention relates to wastewater from chemical industry absorbent fields, are specifically a kind of using sodium alginate and gelatin as the preparation method of the chitosan of carrier.Including：Gelatin and each 1 3g heating of sodium alginate are dissolved in 100ml deionized waters, cooled down；1 3g of Chitosan powder is taken to be uniformly mixed with gelatin+mass percent concentration of mass percent concentration 1 3% for the colloidal sol 100ml of 1 3% sodium alginate；It is 4% CaCl that mixture obtained by previous step is instilled boric acid, mass percent concentration that 100ml mass percent concentrations are 3.8% with 5ml syringes2In mixed solution, control pH that the immobilization particle of embedding chitosan is made in the range of 4.0~7.0；Placement filters out particle afterwards for 24 hours, is stored in deionized water.For the present invention using sodium alginate and gelatin as carrier, material therefor species is less, and preparation process is simple, is conducive to industrial popularization.

Description

It is a kind of using sodium alginate and gelatin as the preparation method of the chitosan of carrier
Technical field
It is specifically a kind of to gather using sodium alginate and gelatin as the shell of carrier the present invention relates to wastewater from chemical industry absorbent fields The preparation method of sugar.
Background technology
Each heavy metal species are often included in industrial wastewater.In water Cu-W ore deposit mainly by come from cleaner for metal, electroplate liquid and Caused by the contaminated wastewater of wooden oar production industry.Cr6+It is primarily present in the industrial wastewaters such as leather, plating, printing, metallurgy.Work Cr in industry waste water6+Discharging standards be less than 0.5 mg/L.Cr6+With strong oxidizing property, harm to the human body is larger, is considered It is carcinogenic substance.Processing for heavy metal-containing waste water, biological adsorption or the absorption with biological source object are considered as a kind of effect Significant means.Chitosan is a kind of such as lobster, crab and this kind of arthropod of inkfish essentially from the chitin of deacetylation With the substance of shellfish shell.The N- acetyl group of chitin sloughs more than 55% and just can be described as chitosan.Chitosan has hydrophily, biology The features such as compatibility, biological degradability and antibiotic property, because the amino and hydroxyl on chitosan chain can provide the position of reaction, Therefore it has been widely used as the adsorbent of transition metal ions and organic species.This polysaccharide is cheap and easy to get, easy to process, useless Water treatment field has broad application prospects.At present, independent or modified chitosan to the absorption of heavy metal in aqueous solution It has been reported that, but its adsorbent material therefor is excessive, and preparation process is complicated, and production cost is high.
Chinese invention patent application 201511001899.X discloses a kind of chitosan compound adsorbing agent, by following parts by weight Several raw material compositions：50-60 parts of chitosan, 30-40 parts of cellulose powder, 20-25 parts of bentonite, montmorillonite 15-20 Part, 15-18 parts of zeolite, 3-5 parts of glyoxal, 2-6 parts of methacrylic acid, 2-6 parts of acrylamide, 1-3 parts of titanium dioxide, 5-8 parts of acetic acid, 0.5-1 parts of vinyl pelargonate ester, 0.8-2 parts of magnesium silicate, 2-4 parts of calcium oxide.The invention is answered using material Miscellaneous, adsorption effect is general, is unfavorable for promoting.
The content of the invention
The present invention provides a kind of using sodium alginate and gelatin as the preparation method of the chitosan of carrier, solve existing Technology be used to handling the chitosan absorbent of metal ion pollution water using material it is complicated, be unfavorable for promoting the problem of.
The present invention is achieved by the following technical solutions：
It is a kind of using sodium alginate and gelatin as the preparation method of the chitosan of carrier, preparation process includes：
Gelatin and each 1-3g heating of sodium alginate are dissolved in 100ml deionized waters, cooled down；
Chitosan powder 1-3g is taken with being that gelatin+mass percent concentration of 1-3% is 1-3% sea containing mass percent concentration The colloidal sol 100ml of mosanom is uniformly mixed；
Mixture is slowly instilled into the CaCl that 100ml mass percent concentrations are 4% with 5ml syringes2In solution, embedding is made The immobilization particle of chitosan is placed for 24 hours；
Particle is filtered out after standing crosslinking, is washed with deionized water only, is stored in before use in deionized water.
Preferably preparation process is：
Gelatin and each 2g heating of sodium alginate are dissolved in 100ml deionized waters, cooled down；
Take Chitosan powder 2g with containing mass percent concentration be 2% gelatin+mass percent concentration be 2% sodium alginate Colloidal sol 100ml is uniformly mixed；
Mixture is slowly instilled into the CaCl that 100ml mass percent concentrations are 4% with 5ml syringes2In solution, embedding is made The immobilization particle of chitosan is placed for 24 hours；
Particle is filtered out after standing crosslinking, is washed with deionized water only, is stored in before use in deionized water.
Wherein, the chemical industry that chitosan obtained can be used for processing copper ion concentration model to be 10-100mg/L in this way gives up Water.
Wherein, chitosan obtained can be used for the wastewater from chemical industry that processing chromium ion concentration model is 1-10mg/L in this way.
Compared with prior art, had the following advantages than the present invention：
(1) for the present invention using sodium alginate and gelatin as carrier, material therefor species is less, and preparation process is simple, is conducive to Industrial popularization.
(2) chitosan produced by the present invention has preferably the wastewater from chemical industry that copper ion concentration scope is 10-100mg/L Treatment effect.
(3) chitosan produced by the present invention has preferable place to the wastewater from chemical industry that chromium ion concentration scope is 1-10mg/L Manage effect.
Specific embodiment
The present invention is described in further details with reference to embodiment.
Embodiment 1：
Gelatin and each 1g heating of sodium alginate are dissolved in 100ml deionized waters, cooled down；
Take the colloidal sol that gelatin+mass percent concentration of Chitosan powder 1g and mass percent concentration 1% is 1% sodium alginate 100ml is uniformly mixed；
The 5ml syringes of mixture obtained by previous step are instilled into the boric acid that 100ml mass percent concentrations are 3.8%, quality hundred It is 4% CaCl to divide specific concentration2In mixed solution, control pH that the immobilization of embedding chitosan is made in the range of 4.0~7.0 Grain；
Placement filters out particle afterwards for 24 hours, is washed with deionized water only, is stored in before use in deionized water.
Chitosan obtained in this way is placed in the wastewater from chemical industry that copper ion concentration is 10mg/L, 10h is to copper ion Adsorption rate up to 97%.
Embodiment 2：
Gelatin and each 3g heating of sodium alginate are dissolved in 100ml deionized waters, cooled down；
Take the colloidal sol that gelatin+mass percent concentration of Chitosan powder 3g and mass percent concentration 3% is 3% sodium alginate 100ml is uniformly mixed；
The 5ml syringes of mixture obtained by previous step are instilled into the boric acid that 100ml mass percent concentrations are 3.8%, quality hundred It is 4% CaCl to divide specific concentration2In mixed solution, control pH that the immobilization of embedding chitosan is made in the range of 4.0~7.0 Grain；
Placement filters out particle afterwards for 24 hours, is washed with deionized water only, is stored in before use in deionized water.
Chitosan obtained in this way is placed in the wastewater from chemical industry that copper ion concentration is 100mg/L, 10h is to copper ion Adsorption rate up to 90%.
Embodiment 3：
Gelatin and each 3g heating of sodium alginate are dissolved in 100ml deionized waters, cooled down；
Take the colloidal sol that gelatin+mass percent concentration of Chitosan powder 1g and mass percent concentration 3% is 1% sodium alginate 100ml is uniformly mixed；
The 5ml syringes of mixture obtained by previous step are instilled into the boric acid that 100ml mass percent concentrations are 3.8%, quality hundred It is 4% CaCl to divide specific concentration2In mixed solution, control pH that the immobilization of embedding chitosan is made in the range of 4.0~7.0 Grain；
Placement filters out particle afterwards for 24 hours, is washed with deionized water only, is stored in before use in deionized water.
Chitosan obtained in this way is placed in the wastewater from chemical industry that copper ion concentration is 50mg/L, 15h is to copper ion Adsorption rate up to 92%.
Embodiment 4：
Gelatin and each 1g heating of sodium alginate are dissolved in 100ml deionized waters, cooled down；
Take the colloidal sol that gelatin+mass percent concentration of Chitosan powder 3g and mass percent concentration 1% is 3% sodium alginate 100ml is uniformly mixed；
The 5ml syringes of mixture obtained by previous step are instilled into the boric acid that 100ml mass percent concentrations are 3.8%, quality hundred It is 4% CaCl to divide specific concentration2In mixed solution, control pH that the immobilization of embedding chitosan is made in the range of 4.0~7.0 Grain；
Placement filters out particle afterwards for 24 hours, is washed with deionized water only, is stored in before use in deionized water.
Chitosan obtained in this way is placed in the wastewater from chemical industry that chromium ion concentration is 1mg/L, 8h is to copper ion Adsorption rate is up to 97%.
Embodiment 5：
It is a kind of using sodium alginate and gelatin as the preparation method of the chitosan of carrier, preparation process includes：
Gelatin and each 2g heating of sodium alginate are dissolved in 100ml deionized waters, cooled down；
Take the colloidal sol that gelatin+mass percent concentration of Chitosan powder 3g and mass percent concentration 3% is 2% sodium alginate 100ml is uniformly mixed；
The 5ml syringes of mixture obtained by previous step are instilled into the boric acid that 100ml mass percent concentrations are 3.8%, quality hundred It is 4% CaCl to divide specific concentration2In mixed solution, control pH that the immobilization of embedding chitosan is made in the range of 4.0~7.0 Grain；
Placement filters out particle afterwards for 24 hours, is washed with deionized water only, is stored in before use in deionized water.
Chitosan obtained in this way is placed in the wastewater from chemical industry that chromium ion concentration is 10mg/L, 12h is to copper ion Adsorption rate up to 87%.
Embodiment 6：
Gelatin and each .2.5g heating of sodium alginate are dissolved in 100ml deionized waters, cooled down；
Gelatin+the mass percent concentration for taking Chitosan powder 1.5g and mass percent concentration 1.5% is the molten of 1% sodium alginate Glue 100ml is uniformly mixed；
The 5ml syringes of mixture obtained by previous step are instilled into the boric acid that 100ml mass percent concentrations are 3.8%, quality hundred It is 4% CaCl to divide specific concentration2In mixed solution, control pH that the immobilization of embedding chitosan is made in the range of 4.0~7.0 Grain；
Placement filters out particle afterwards for 24 hours, is washed with deionized water only, is stored in before use in deionized water.
Chitosan obtained in this way is placed in the wastewater from chemical industry that chromium ion concentration is 10mg/L, 10h is to copper ion Adsorption rate up to 97%.
Embodiment 7：
Gelatin and each 3g heating of sodium alginate are dissolved in 100ml deionized waters, cooled down；
Gelatin+the mass percent concentration for taking Chitosan powder 1.5g and mass percent concentration 2.5% is the molten of 1% sodium alginate Glue 100ml is uniformly mixed；
The 5ml syringes of mixture obtained by previous step are instilled into the boric acid that 100ml mass percent concentrations are 3.8%, quality hundred It is 4% CaCl to divide specific concentration2In mixed solution, control pH that the immobilization of embedding chitosan is made in the range of 4.0~7.0 Grain；
Placement filters out particle afterwards for 24 hours, is washed with deionized water only, is stored in before use in deionized water.
Chitosan obtained in this way is placed in the wastewater from chemical industry that chromium ion concentration is 8mg/L, 8h is to copper ion Adsorption rate is up to 97%.
Embodiment 8：
Gelatin and each 2g heating of sodium alginate are dissolved in 100ml deionized waters, cooled down；
Take Chitosan powder 2g with containing mass percent concentration be 2% gelatin+mass percent concentration be 2% sodium alginate Colloidal sol 100ml is uniformly mixed；
Mixture is slowly instilled into the CaCl that 100ml mass percent concentrations are 4% with 5ml syringes2In solution, embedding is made The immobilization particle of chitosan is placed for 24 hours；
Particle is filtered out after standing crosslinking, is washed with deionized water only, is stored in before use in deionized water.
Chitosan obtained in this approach is placed in the wastewater from chemical industry that copper ion concentration is 100mg/L, 15h is to copper ion Adsorption rate up to 97%.

Claims (4)

  1. It is 1. a kind of using sodium alginate and gelatin as the preparation method of the chitosan of carrier, it is characterised in that preparation process includes：
    Gelatin and each 1-3g heating of sodium alginate are dissolved in 100ml deionized waters, cooled down；
    Chitosan powder 1-3g is taken with being that gelatin+mass percent concentration of 1-3% is 1-3% sea containing mass percent concentration The colloidal sol 100ml of mosanom is uniformly mixed；
    Mixture is slowly instilled into the CaCl that 100ml mass percent concentrations are 4% with 5ml syringes2In solution, embedding shell is made The immobilization particle of glycan is placed for 24 hours；
    Particle is filtered out after standing crosslinking, is washed with deionized water only, is stored in before use in deionized water.
  2. 2. it is according to claim 1 a kind of using sodium alginate and gelatin as the preparation method of the chitosan of carrier, it is special Sign is that preparation process includes：
    Gelatin and each 2g heating of sodium alginate are dissolved in 100ml deionized waters, cooled down；
    Take Chitosan powder 2g with containing mass percent concentration be 2% gelatin+mass percent concentration be 2% sodium alginate Colloidal sol 100ml is uniformly mixed；
    Mixture is slowly instilled into the CaCl that 100ml mass percent concentrations are 4% with 5ml syringes2In solution, embedding shell is made The immobilization particle of glycan is placed for 24 hours；
    Particle is filtered out after standing crosslinking, is washed with deionized water only, is stored in before use in deionized water.
  3. It is 3. a kind of using sodium alginate and gelatin as the preparation side of the chitosan of carrier according to claim 1,2 any one of them Method, it is characterised in that the chemical industry that chitosan obtained can be used for processing copper ion concentration model to be 10-100mg/L in this way gives up Water.
  4. It is 4. a kind of using sodium alginate and gelatin as the preparation side of the chitosan of carrier according to claim 1,2 any one of them Method, it is characterised in that chitosan obtained can be used for the wastewater from chemical industry that processing chromium ion concentration model is 1-10mg/L in this way.
CN201611003093.9A 2016-11-15 2016-11-15 It is a kind of using sodium alginate and gelatin as the preparation method of the chitosan of carrier Pending CN108067194A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109134950A (en) * 2018-08-24 2019-01-04 西安建筑科技大学 A kind of preparation method embedding quorum sensing inhibitor hydrogel blend film

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101224412A (en) * 2007-10-15 2008-07-23 北京航空航天大学 Biologic absorbent for adsorbing heavy metal and preparing method thereof
CN104722279A (en) * 2015-03-14 2015-06-24 河南城建学院 Method for removing heavy metal cadmium and lead pollutants in water by sodium alginate/gelatin coated nano zero-valent iron
US20150320922A1 (en) * 2012-07-06 2015-11-12 Triomed Ab Method of producing a urea adsorbent
JP2016163880A (en) * 2015-02-27 2016-09-08 国立大学法人九州大学 Method for removing sulphur-containing compound in liquid

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101224412A (en) * 2007-10-15 2008-07-23 北京航空航天大学 Biologic absorbent for adsorbing heavy metal and preparing method thereof
US20150320922A1 (en) * 2012-07-06 2015-11-12 Triomed Ab Method of producing a urea adsorbent
JP2016163880A (en) * 2015-02-27 2016-09-08 国立大学法人九州大学 Method for removing sulphur-containing compound in liquid
CN104722279A (en) * 2015-03-14 2015-06-24 河南城建学院 Method for removing heavy metal cadmium and lead pollutants in water by sodium alginate/gelatin coated nano zero-valent iron

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
姜虎生等: "壳聚糖固定化技术及吸附性能的研究", 《河北科技大学学报》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109134950A (en) * 2018-08-24 2019-01-04 西安建筑科技大学 A kind of preparation method embedding quorum sensing inhibitor hydrogel blend film

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