CN102091603A - Preparation method and application of novel adsorbent resin - Google Patents
Preparation method and application of novel adsorbent resin Download PDFInfo
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- CN102091603A CN102091603A CN2010106240585A CN201010624058A CN102091603A CN 102091603 A CN102091603 A CN 102091603A CN 2010106240585 A CN2010106240585 A CN 2010106240585A CN 201010624058 A CN201010624058 A CN 201010624058A CN 102091603 A CN102091603 A CN 102091603A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The invention provides a method for preparing novel adsorbent resin, which comprises the following process steps of: (1) dissolving sodium alginate and nutritional components of a yeast peptone dextrose (YPD) medium in water, heating for dissolving, cooling to room temperature, adding kaolin, sodium hydrogen carbonate and polyethylene glycol to obtain mixed solution, and dripping into calcium chloride solution to prepare gel particles; (2) heating the gel particles to obtain porous gel particles; and (3) drying the porous gel particles at 85DEG C for 15 minutes, cooling, putting into yeast suspension, and culturing to obtain the novel microorganism-loaded absorbent resin. The resin has double performance of oil absorption and water absorption; the porous gel particles prepared from the sodium alginate serve as a microorganism carrier; in organic waste gas treatment application, adsorption and biological treatment are integrated; and the resin can be recycled and is not needed to be regenerated, so that cost and operating expense are saved.
Description
Technical field
The present invention relates to the field of adsorbent and Environmental Technology, relate to novel polymeric adsorbent especially, especially be loaded with microorganism polymeric adsorbent the preparation method and be applied to the adsorption cleaning of organic exhaust gas.
Background technology
Along with continuous progress in science and technology, various pollution problems become increasingly conspicuous.In process such as chemical industry, plastics, adhesive production and spraying, produced the organic exhaust gas that contains VOC in a large number, as the unprocessed atmosphere that enters, can form photochemical pollution under certain condition, cause serious atmosphere pollution; And this compounds has toxicity mostly, and part has been listed in carcinogen, and as formaldehyde, vinyl chloride, benzene, polycyclic aromatic hydrocarbon etc., it causes great harm to environment, vegeto-animal growth and human health.The pollution of organic exhaust gas is a problem that can not be ignored.
Organic exhaust gas is administered the multiple technologies measure, reduces oil loss, minimizing consumption of organic solvent or exhaust gas purification to eliminate Organic Waste Gas Pollution by different approaches.Method commonly used at present has absorption method, absorption process, Production by Catalytic Combustion Process, flame combustion method, bioanalysis etc.
Charcoal absorption is to use the most general organic waste gas treatment method at present, the adsorption efficiency height, and treatment effect is good, has the good adsorption performance to containing benzene,toluene,xylene class waste gas, but relatively poor to hydro carbons waste gas adsorptivity.But the organic exhaust gas that charcoal absorption regeneration is difficult, operating cost is high, be not suitable for handling high humidity, this is to hinder the bottleneck that active carbon adsorption uses, and with regard to the character of active carbon itself, this weakness can't overcome.
Summary of the invention
The object of the invention is to adopt novel composite resin, and it has parents' performance, can use as high water absorbent and oil absorbent simultaneously, and this resin has long service life, reusable edible.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
A kind of preparation method of novel polymeric adsorbent comprises following processing step:
(1) preparation hydrophilic gel particle: the nutritional labeling of sodium alginate, YDP culture medium is soluble in water, heating for dissolving, be cooled to room temperature, adding kaolin, sodium acid carbonate, polyethylene glycol get mixed liquor, described mixed liquor is added drop-wise to makes pearl granulated gel grain in the calcium chloride solution;
(2) the hydrophilic gel particle of preparation loose structure:, get the porous gel grain with the described gel grain heating of step (1);
(3) preparation is loaded with the novel polymeric adsorbent of microorganism: in 85 ℃, dry 15min cools off with the described porous gel grain of step (2), throws in the saccharomycete suspension, and shaking table was cultivated 24 hours, must be loaded with the novel polymeric adsorbent of microorganism.
Described step (1) also comprises: the nutritional labeling of sodium alginate, YDP culture medium is soluble in water, heating for dissolving, be cooled to room temperature, add sodium acid carbonate, polyethylene glycol again, add kaolin again, stirring makes its dissolving, use the syringe that links to each other with syringe needle to draw at last,, drip in the plate that fills 10% calcium chloride solution with constant speed and to make gel beads by the aperture of 1.5～2.0mm, utilize magnetic stirring apparatus to stir simultaneously, sodium alginate is contacted evenly with crosslinking agent.
Described step (2) comprising:
(21) calcium ion on usefulness pure water flush away gel grain surface;
(22) the gel grain is put into the volumetric flask that fills certain water yield and be sealed in 121 ℃ of autoclaving 10min, obtained the porous gel grain.
Described step (3) also comprises: with in the triangular flask that is inoculated in the 250ml that the 100mlYDP culture medium is housed 30 ℃, the 160rpm shaking table is cultivated 72h, obtains the saccharomycete suspension with the saccharomycete bacterial strain of separation and purification.
The concentration of described calcium chloride solution is 5-10%, wherein preferred 5%
Described sodium alginate, kaolin, sodium acid carbonate, polyethylene glycol weight ratio are:
Sodium alginate 3.20%
Kaolin 2%
Sodium acid carbonate 6%
Polyethylene glycol 1%
The novel absorbent-type resin that a kind of above-mentioned preparation method makes is applied to the absorption of organic exhaust gas.
Know-why
The present invention adopts sodium alginate as microbial immobilization reagent, rely on 1 by a-L-mannuronic acid (M unit) and b-D-guluronic acid (G unit), connection of 4-glycosidic bond and the copolymer of forming by different GGGMMM fragments, its solution can form gel with a lot of divalence and Tricationic reaction; Gel can at room temperature form, and heating is not melted yet; Sodium alginate and calcium chloride is crosslinked, can make high hydroscopic resin, sodium acid carbonate decomposes under hot conditions, can make this water-absorbing resin form porous particles, is beneficial to saccharomycete and grows therein and breed.The present invention adopts the raw material of sodium alginate as carrier, itself and microorganism have stably bonding, and itself possess hydrophilic property, in addition, sodium alginate is cheap and be easy to get, and with its as carrier to microbial growth unrestraint effect, provide a best condition to microbial growth.The hardness of the carrier that sodium alginate is prepared from and to be subjected to force intensity be very high, but since its inside have a loose structure, and the hole communicates with the external world, thereby makes become softness and lost elasticity of gel grain.The present invention adds the water-insoluble solid particle, plays the effect of support, thereby makes the gel grain become the particle with certain intensity.
The present invention has adopted NaHCO3 as pore-foaming agent, and it is to the minimum that influences of growth of microorganism, and can not react with other materials on the gel grain, guarantees the stability of gel grain.
The present invention adopts polyethylene glycol as dispersant, makes that pore-foaming agent evenly distributes in the foaming process of gel grain, and materials such as other image intensifying agent simultaneously also can be evenly distributed, thereby it is even to obtain pore size distribution, the sizable gel particle of intensity.
The beneficial effect of the invention
Polymeric adsorbent of the present invention has parents' performance, be hydrophobic lipophile and hydrophily, use as doing oil absorbent and high water absorbent simultaneously, can adsorb the hydrophobicity composition of organic exhaust gas such as benzene,toluene,xylene etc. as high oil absorbent, can absorb hydrophilic composition as high water absorbent, the saccharomycete or other microorganisms that can immobilization have the exhaust gas decomposition function, fully decompose utilization thereby make organic pollution in the waste gas be adsorbed the back for microorganism, have the dual-use function of the integrated processing of organic exhaust gas absorption+biodegradation.
In the organic exhaust gas absorbing process in the past, adsorbent select important problem often for use because must consider its factor such as adsorption capacity, service life.New type resin of the present invention is a kind of nonvolatil polymeric adsorbent, need not regeneration, can be recycling, organic exhaust gas is adsorbed on the resin, absorb by the microorganism of apposition growth in the resin hole, and convert it into harmless product, really solve adsorbent life-span weak point in the present stage technology, changed the problem of difficulty.To degrade yeast or other microbial immobilized cultivations in resin, can replace active carbon to be used for the absorption+degradation treatment of waste gas, thoroughly solve the active carbon high problem of difficult use cost of regenerating.
Below in conjunction with embodiment, the present invention is further described.
The specific embodiment
Embodiment 1
Present embodiment provides a kind of preparation method of novel type polymeric adsorbent, may further comprise the steps:
1, the preparation of saccharomycete suspension
Under aseptic condition, the saccharomycete bacterial strain of separation and purification is inoculated in respectively with oese in the triangular flask of the 250ml that 100ml screening and culturing base is housed, and what present embodiment adopted is the YDP culture medium, 30 ℃, the 160rpm shaking table is cultivated 72h, obtains the saccharomycete suspension that needs.
2, the preparation of gel grain:
Take by weighing the 3.2g sodium alginate in small beaker, add sterilized water a little, the furnishing pasty state, add remaining water (total amount is 100ml) again, ratio according to the nutritional labeling of YDP culture medium adds nutriment again, heat on the fire to fusing, be cooled to normal temperature, add polyethylene glycol and NaHCO3 again,, after this add kaolin or calcium carbonate again in order to increase the intensity of gel grain, stirring makes its dissolving, use the syringe that links to each other with syringe needle to draw at last,, drip to constant speed and to fill 10%CaCl by the aperture of 1.5～2.0mm
2Make gel beads in the plate of (crosslinking agent) solution, utilize magnetic stirring apparatus to stir simultaneously, sodium alginate is contacted with crosslinking agent evenly, crosslinked rapidly, avoid the reaction of pore-foaming agent to cause the explosion of gel grain.
3, the formation of loose structure
With the prepared gel grain with purified rinse water several times, purpose is the calcium ion on flush away gel grain surface, its input is equipped with in the conical flask of pure water again, puts into the autoclave sterilization then, and sterilising temp and time are respectively 121 ℃, 10min.Owing to added pore-foaming agent during the preparation of gel grain,, made the gel grain length become loose structure so in the high-temperature sterilization process, pore-foaming agent can react.
4, saccharomycete enters growth in the gel grain hole
The gel grain of loose structure is taken out from conical flask, put it into baking oven and carry out drying, temperature is 85 ℃, dry 15min.It is thrown in the saccharomycete suspension, shaking table was cultivated 24 hours for 30 ℃ again.
Embodiment 2-9 is substantially the same manner as Example 1, and its difference is: the weight ratio difference of sodium alginate, kaolin, CaCO3, NaHCO3, five kinds of compositions of polyethylene glycol and the CaCl2 concentration of employing variable concentrations see Table 1.
The raw material of each embodiment of table 1 is formed
| Embodiment | Sodium alginate | Kaolin | CaCO3 | NaHCO3 | Polyethylene glycol | CaCl2 concentration |
| 1 | 3.2％ | 1％ | - | 3％ | 1％ | 10％ |
| 2 | 3.2％ | 2％ | - | 3％ | 2％ | 10％ |
| 4 3 | 3.2％ | 2％ | - | 3％ | 3％ | 10％ |
| 4 | 3.2％ | - | 1％ | 6％ | 1％ | 7％ |
| 5 | 3.2％ | - | 2％ | 6％ | 2％ | 7％ |
| 6 | 3.2％ | - | 2％ | 6％ | 3％ | 7％ |
| 7 | 3.2％ | 1％ | - | 6％ | 1％ | 5％ |
| 8 | 3.2％ | 2％ | - | 6％ | 2％ | 5％ |
| 9 | 3.2％ | 2％ | - | 6％ | 3％ | 5％ |
The observation of growth of microorganism situation
Macroscopic observation growth of microorganism situation the results are shown in Table 2.
Each embodiment growth of microorganism situation of table 2
| Embodiment | Gel grain surface | Gel intragranular hole |
| 1 | Micro organism quantity is various | The microorganism rareness |
| 2 | Micro organism quantity is various | Microorganism does not have |
| 3 | Micro organism quantity is various | Microorganism does not have |
| 4 | Micro organism quantity is various | The microorganism rareness |
| 5 | Micro organism quantity is various | The microorganism rareness |
| 6 | Micro organism quantity is various | The microorganism rareness |
| 7 | Micro organism quantity is various | Micro organism quantity is many, and the surface is few |
| 8 | Micro organism quantity is various | Micro organism quantity is many, and the surface is few |
| 9 | Micro organism quantity is various | Micro organism quantity is many, and the surface is few |
The gel grain that is immersed in the bacteria suspension is taken out, remove surperficial thalline with aseptic water washing, again that it is inner bacterium liquid pushes out.The bacterium liquid that extruding is come out carries out microscopy again, observes the population size of thalline.The result: the thalline of gel intragranular portion is 3000000-500000 number/ml.
(2) mensuration of water absorption rate
The gel particle of loose structure still has very strong water absorbing capacity after handling through super-dry, and can recover its original graininess substantially after the suction.Therefore, can by with it in this drops into water, determine the water absorption of gel grain by the difference of the water yield, and before in dropping into water, we will weigh to it, again in conjunction with afterwards water absorption, thereby the water absorption rate of definite gel grain the results are shown in Table 3.
The water absorption rate of each embodiment porous gel grain of table 3
| Embodiment | Weight/g before dry | Dry back weight/g | Dry back water absorption/ml | Water absorption rate ml/g |
| 1 | 4.02 | 2.34 | 2.1 | 0.89 |
| 2 | 4.13 | 2.53 | 1.3 | 0.51 |
| 3 | 4.12 | 2.51 | 1.1 | 0.44 |
| 4 | 3.96 | 2.22 | 1.1 | 0.50 |
| 5 | 4.07 | 2.43 | 1.1 | 0.45 |
| 6 | 4.09 | 2.39 | 1.2 | 0.50 |
| 7 | 4.12 | 2.41 | 2.8 | 1.16 |
| 8 | 4.23 | 2.40 | 4.2 | 1.75 |
| 9 | 4.26 | 2.43 | 4.1 | 1.69 |
The present invention is not limited to above-mentioned embodiment, and every all embodiments that are equal to that can realize the object of the invention are all within protection scope of the present invention.
Claims (7)
1. the preparation method of a novel polymeric adsorbent is characterized in that, comprises following processing step:
(1) preparation hydrophilic gel particle: the nutritional labeling of sodium alginate, YDP culture medium is soluble in water, heating for dissolving, be cooled to room temperature, adding kaolin, sodium acid carbonate, polyethylene glycol get mixed liquor, described mixed liquor is added drop-wise to makes pearl granulated gel grain in the calcium chloride solution;
(2) the hydrophilic gel particle of preparation loose structure:, get the porous gel grain with the described gel grain heating of step (1);
(3) preparation is loaded with the novel polymeric adsorbent of microorganism: in 85 ℃, dry 15min cools off with the described porous gel grain of step (2), throws in the saccharomycete suspension, and shaking table was cultivated 24 hours, must be loaded with the novel polymeric adsorbent of microorganism.
2. the preparation method of novel polymeric adsorbent according to claim 1, it is characterized in that, described step (1) also comprises: with sodium alginate, the nutritional labeling of YDP culture medium is soluble in water, heating for dissolving, be cooled to room temperature, add sodium acid carbonate again, polyethylene glycol, add kaolin again, stirring makes its dissolving, use the syringe that links to each other with syringe needle to draw at last,, drip in the plate that fills 10% calcium chloride solution with constant speed and to make gel beads by the aperture of 1.5～2.0mm, utilize magnetic stirring apparatus to stir simultaneously, sodium alginate is contacted evenly with crosslinking agent.
3. the preparation method of novel polymeric adsorbent according to claim 1 is characterized in that, described step (2) comprising:
(21) calcium ion on usefulness pure water flush away gel grain surface;
(22) the gel grain is put into the volumetric flask that fills certain water yield and be sealed in 121 ℃ of autoclaving 10min, obtained the porous gel grain.
4. the preparation method of novel polymeric adsorbent according to claim 1, it is characterized in that, described step (3) also comprises: with the saccharomycete bacterial strain of separation and purification with in the triangular flask that is inoculated in the 250ml that the 100mlYDP culture medium is housed 30 ℃, the 160rpm shaking table is cultivated 72h, obtains the saccharomycete suspension.
5. the preparation method of novel polymeric adsorbent according to claim 1 is characterized in that, the concentration of described calcium chloride solution is 5-10%, wherein preferred 5%.
6. the preparation method of novel polymeric adsorbent according to claim 1 is characterized in that, described sodium alginate, kaolin, sodium acid carbonate, polyethylene glycol weight ratio are:
Sodium alginate 3.20%
Kaolin 2%
Sodium acid carbonate 6%
Polyethylene glycol 1%
7. a novel absorbent-type resin that is made by the preparation method of the described novel polymeric adsorbent of claim 1 is applied to the absorption of organic exhaust gas.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437398A (en) * | 2014-11-12 | 2015-03-25 | 青岛海洋生物医药研究院股份有限公司 | Application of red seaweed polysaccharide, red seaweed oligosaccharide and derivatives thereof to preparation of adsorbing agent for adsorbing air pollutants |
| CN106111087A (en) * | 2016-06-28 | 2016-11-16 | 陈建峰 | A kind of preparation method of biological rubber eliminating smell agent |
| CN108060156A (en) * | 2017-11-14 | 2018-05-22 | 天津科技大学 | A kind of pore forming method of imbedded microbe PVA gel rubber materials |
| CN108220278A (en) * | 2017-12-31 | 2018-06-29 | 浙江工业大学 | A kind of nutrition slow-release filler of loading functional type microorganism and its application |
| CN108993440A (en) * | 2018-06-28 | 2018-12-14 | 奚正华 | It is a kind of for adsorbing the preparation method of the oil-absorbing resin ball of ocean oil slick |
| CN109046291A (en) * | 2018-09-12 | 2018-12-21 | 潘钕 | The preparation method of resin sorbent based on compound diatomite |
| CN109621695A (en) * | 2018-10-16 | 2019-04-16 | 许传高 | Tail gas treatment process during production of corn starch |
| CN110665469A (en) * | 2019-09-19 | 2020-01-10 | 广东工业大学 | Modified composite adsorbent and preparation method and application thereof |
| CN114558558A (en) * | 2022-04-19 | 2022-05-31 | 成都理工大学 | Attapulgite-doped double-crosslinked hydrogel and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104437398A (en) * | 2014-11-12 | 2015-03-25 | 青岛海洋生物医药研究院股份有限公司 | Application of red seaweed polysaccharide, red seaweed oligosaccharide and derivatives thereof to preparation of adsorbing agent for adsorbing air pollutants |
| CN106111087A (en) * | 2016-06-28 | 2016-11-16 | 陈建峰 | A kind of preparation method of biological rubber eliminating smell agent |
| CN108060156A (en) * | 2017-11-14 | 2018-05-22 | 天津科技大学 | A kind of pore forming method of imbedded microbe PVA gel rubber materials |
| CN108060156B (en) * | 2017-11-14 | 2021-04-16 | 天津科技大学 | Pore-forming method for microorganism-embedded PVA gel material |
| CN108220278A (en) * | 2017-12-31 | 2018-06-29 | 浙江工业大学 | A kind of nutrition slow-release filler of loading functional type microorganism and its application |
| CN108993440A (en) * | 2018-06-28 | 2018-12-14 | 奚正华 | It is a kind of for adsorbing the preparation method of the oil-absorbing resin ball of ocean oil slick |
| CN108993440B (en) * | 2018-06-28 | 2021-09-24 | 义乌市旻具五金工具有限公司 | Preparation method of oil-absorbing resin ball for adsorbing marine floating oil |
| CN109046291A (en) * | 2018-09-12 | 2018-12-21 | 潘钕 | The preparation method of resin sorbent based on compound diatomite |
| CN109621695A (en) * | 2018-10-16 | 2019-04-16 | 许传高 | Tail gas treatment process during production of corn starch |
| CN110665469A (en) * | 2019-09-19 | 2020-01-10 | 广东工业大学 | Modified composite adsorbent and preparation method and application thereof |
| CN114558558A (en) * | 2022-04-19 | 2022-05-31 | 成都理工大学 | Attapulgite-doped double-crosslinked hydrogel and preparation method and application thereof |
| CN114558558B (en) * | 2022-04-19 | 2023-09-08 | 成都理工大学 | Double-crosslinked hydrogel doped with attapulgite as well as preparation method and application thereof |
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