CN104988717A - Modified alveolar stone doped bioactive polylactic acid-polypropylene composite fiber carrier material and preparation method thereof - Google Patents
Modified alveolar stone doped bioactive polylactic acid-polypropylene composite fiber carrier material and preparation method thereof Download PDFInfo
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- CN104988717A CN104988717A CN201510436441.0A CN201510436441A CN104988717A CN 104988717 A CN104988717 A CN 104988717A CN 201510436441 A CN201510436441 A CN 201510436441A CN 104988717 A CN104988717 A CN 104988717A
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Abstract
The invention relates to a biomembrane carrier material, and specifically relates to a modified alveolar stone doped bioactive polylactic acid-polypropylene composite fiber carrier material and a preparation method thereof. The conventional pure inorganic and organic carriers are mixed to prepare the composite material; the fiber silk made of polymer materials such as polypropylene, polylactic acid, and the like has a better compatibility with microbes and good hydrophilicity. Moreover, the doped modified alveolar stone has a uniform and efficient adsorption performance. The added colloid graphite powder improves the mechanical performance of fiber silk and improves the adsorption performance of carrier on microbes. The fiber bundle is soaked in composite silica gel, after the treatment, the fiber bundle can adhere to a carbon source in fibers, and the growth of microbes is accelerated. The provided composite fiber carrier material has the advantages of light weight, large activated surface area, high bioactivity, and suitability for microbial growth and propagation and is capable of forming a film in a short time. The filling material made of the composite fiber carrier material has the advantages of good fluidity, difficulty in clustering, and aging resistant property, and is capable of improving the water purification efficiency.
Description
Technical field
The present invention relates to a kind of biofilm carrier material, Bioactive Polylactic Acid-polypropylene biomembrane composite fibre carrier material being specifically related to a kind of doping vario-property honeycomb stone and preparation method thereof.
Background technology
Biomembrane wastewater processing technology Microorganism incubation is formed on carrier biomembrane to make the pollutant in waste water obtain the technology of degrading, therefore, the performance of biofilm carrier directly will have influence on sewage treating efficiency, want to obtain efficient water treatment efficiency, suitable efficient carrier material is selected to seem particularly important, the carrier material mainly polyethylene that current application is more, polystyrene, polyamide, macromolecule flexible material and the active carbons such as polypropylene, slag, the mineral-type fillers such as lime stone, but these materials are at biocompatibility, stability, persistence, reproducibility, there are some defects in the aspects such as mobility and biomembrane tack, govern the further lifting of clean-up effect.
Honeycomb stone, real name foam is a kind of effusive rock in igneous rock material, primarily of volcanic glass, mineral composition.During volcano eruption, a large amount of volcanic gases produced in magma form foam, and foam cooling subsequently, gas " is sealed up for safekeeping " in honeycomb stone.Bubble in honeycomb stone accounts for more than 70% of rock cumulative volume, only has very thin volcanic glass and mineral between bubble, on thus can bubbling through the water column.Honeycomb stone has unique air hole structure and good adsorption capacity, to the organic and inorganic pollution in the aqueous solution, all there is stronger adsorption capacity, it is also used to make biomembrane and enzyme preparation carrier, show up prominently at sewage treatment area, but due to the difference of storeroom, its physical property and chemical composition all have larger change, and absorption boundary condition and adsorption capacity also can be different, and and then affect its carrier surface forming biofilm property and effects of purification quality.
Summary of the invention
The object of the invention is to, for the shortcoming of existing biofilms carrier material, prepare a kind of Bioactive Polylactic Acid-polypropylene biomembrane composite fibre carrier material of novel doping vario-property honeycomb stone, to obtain good microorganism colonization and effects of purification quality.
To achieve these goals, the technical solution used in the present invention is as follows:
Bioactive Polylactic Acid-polypropylene biomembrane composite fibre carrier material of doping vario-property honeycomb stone, is characterized in that: described carrier material is made up of the raw material of following weight portion: 100-200 order aquadag powder 1-2, honeycomb stone 6-8, PLA 13-16, cornstarch 3-5, polypropylene 30-40, epoxidized soybean oil 1-2, ethylene-acrylic acid copolymer 8-10, lauryl sodium sulfate 0.1-0.2, sodium humate 0.3-0.5, comprehensive silicon colloidal sol are appropriate, water 20-30;
Described comprehensive silicon colloidal sol is made up of the raw material of following weight portion: solid content is Ludox 12-16, oxyamyli tectus aldehydum 5-8, the water 30-35 of 30-35%, preparation method is: oxyamyli tectus aldehydum being dropped into temperature is in the water of 40-50 DEG C, be stirred to after it dissolves completely, add Ludox, insulated and stirred 2-3h, obtains comprehensive silicon colloidal sol.
The preparation method of above-mentioned material comprises following steps:
(1) first honeycomb stone is broken for 50-100 order; Dropped in the solution prepared by lauryl sodium sulfate, sodium humate and water again, after stirring, mixed material is heated to 50-60 DEG C, and be 60-100W ultrasonic echography process 4-5h with power, process terminates rear filtration, filtrate clean water 2-3 post-drying, obtains modification honeycomb stone micro mist for subsequent use;
(2) modification honeycomb stone micro mist prepared by other leftover materials except comprehensive silicon colloidal sol and step (1) is mixed, send into batch mixing in double screw extruder, extrude under 230-250 DEG C of condition and make compound slice, drop into melt-spraying spinning in melt-blown non-woven equipment after slice cooling, be compiled into after the solidification of gained filament and make the bundle of composite fibers that diameter is 1-2mm;
(3) fibre bundle of step (2) gained is immersed in comprehensive silicon colloidal sol, take out after soaking 12-16h, after heated-air drying, be cooled to room temperature, use clean water 1-2 rear drying subsequently again, remove moisture completely, to obtain final product.
Beneficial effect of the present invention:
The present invention is by simple for tradition inorganic, organic carrier medium is used in combination, by both advantages, widen the scope of application of material greatly, with polypropylene, the filament of the Polymer materialspreparations such as PLA and the compatibility of microorganism better, good hydrophilic property, the modification honeycomb stone of blending in filament possesses the adsorption capacity of uniform high-efficiency, the interpolation of aquadag powder not only improves filametntary mechanical property, also improve the adsorption capacity of carrier to microorganism, obtained fibre bundle can adhere to carbon source in the fibre after immersion treatment in comprehensive silicon colloidal sol, accelerate microbial growth.The composite fibre carrier material that the present invention prepares is lightweight, and surface active area is large, and biologically active is high, be applicable to microbial growth, energy rapid biofilm, has good fluidity with the filler that it makes, not easily conglomeration, the advantage such as ageing-resistant, improves purification of water quality efficiency.
Detailed description of the invention
Embodiment
Below with reference to embodiment, the present invention will be further described.
Bioactive Polylactic Acid-polypropylene biomembrane composite fibre carrier material of doping vario-property honeycomb stone, is characterized in that: described carrier material material is made up of the raw material of following weight portion: 200 order aquadag powder 1.5, honeycomb stone 8, PLA 15, cornstarch 4, polypropylene 40, epoxidized soybean oil 2, ethylene-acrylic acid copolymer 8, lauryl sodium sulfate 0.1, sodium humate 0.5, comprehensive silicon colloidal sol are appropriate, water 20;
Wherein comprehensive silicon colloidal sol is made up of the raw material of following weight portion: solid content is Ludox 12-16, oxyamyli tectus aldehydum 5-8, the water 30-35 of 30-35%, preparation method is: oxyamyli tectus aldehydum being dropped into temperature is in the water of 40-50 DEG C, be stirred to after it dissolves completely, add Ludox, insulated and stirred 2-3h, obtains comprehensive silicon colloidal sol.
The preparation method of above-mentioned material comprises following steps:
(1) first honeycomb stone is broken for 80 orders; Dropped in the solution prepared by lauryl sodium sulfate, sodium humate and water again, after stirring, mixed material is heated to 50-60 DEG C, and is 100W ultrasonic echography process 5h with power, process terminates rear filtration, filtrate clean water 3 post-dryings, obtain modification honeycomb stone micro mist for subsequent use;
(2) modification honeycomb stone micro mist prepared by other leftover materials except comprehensive silicon colloidal sol and step (1) is mixed, send into batch mixing in double screw extruder, extrude under 240 DEG C of conditions and make compound slice, drop into melt-spraying spinning in melt-blown non-woven equipment after slice cooling, be compiled into after the solidification of gained filament and make the bundle of composite fibers that diameter is 1.5mm;
(3) fibre bundle of step (2) gained is immersed in comprehensive silicon colloidal sol, take out after soaking 15h, after heated-air drying, be cooled to room temperature, dry after using clean water 2 times subsequently again, remove moisture completely, to obtain final product.
The fibre bundle specific area prepared is 6800m
2/ m
3, in 8-12 hour, realize biomembrane set, within 10-12 days, inner film thickness can reach 6-8mm, the average magnitude of its perphyton dry film reaches 4.0g/g, and it reaches 92.5% to COD clearance in sewage, and ammonia nitrogen removal frank reaches 94.5%, nitrogen removal rate reaches 83.2%, and average life is 5-6.
Claims (3)
1. Bioactive Polylactic Acid-polypropylene biomembrane composite fibre carrier material of doping vario-property honeycomb stone, is characterized in that: described carrier material is made up of the raw material of following weight portion: 100-200 order aquadag powder 1-2, honeycomb stone 6-8, PLA 13-16, cornstarch 3-5, polypropylene 30-40, epoxidized soybean oil 1-2, ethylene-acrylic acid copolymer 8-10, lauryl sodium sulfate 0.1-0.2, sodium humate 0.3-0.5, comprehensive silicon colloidal sol are appropriate, water 20-30.
2. Bioactive Polylactic Acid-polypropylene biomembrane composite fibre the carrier material of a doping vario-property honeycomb stone, it is characterized in that, described comprehensive silicon colloidal sol forms by the raw material of following weight portion is composite: solid content is Ludox 12-16, oxyamyli tectus aldehydum 5-8, the water 30-35 of 30-35%, preparation method is: oxyamyli tectus aldehydum being dropped into temperature is in the water of 40-50 DEG C, be stirred to after it dissolves completely, add Ludox, insulated and stirred 2-3h, obtain comprehensive silicon colloidal sol.
3. the preparation method of the Bioactive Polylactic Acid-polypropylene biomembrane composite fibre carrier material of a kind of doping vario-property honeycomb stone as claimed in claim 1 or 2, is characterized in that, comprise following steps:
(1) first honeycomb stone is broken for 50-100 order; Dropped in the solution prepared by lauryl sodium sulfate, sodium humate and water again, after stirring, mixed material is heated to 50-60 DEG C, and be 60-100W ultrasonic echography process 4-5h with power, process terminates rear filtration, filtrate clean water 2-3 post-drying, obtains modification honeycomb stone micro mist for subsequent use;
(2) modification honeycomb stone micro mist prepared by other leftover materials except comprehensive silicon colloidal sol and step (1) is mixed, send into batch mixing in double screw extruder, extrude under 230-250 DEG C of condition and make compound slice, drop into melt-spraying spinning in melt-blown non-woven equipment after slice cooling, be compiled into after the solidification of gained filament and make the bundle of composite fibers that diameter is 1-2mm;
(3) fibre bundle of step (2) gained is immersed in comprehensive silicon colloidal sol, take out after soaking 12-16h, after heated-air drying, be cooled to room temperature, use clean water 1-2 rear drying subsequently again, remove moisture completely, to obtain final product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510436441.0A CN104988717A (en) | 2015-07-23 | 2015-07-23 | Modified alveolar stone doped bioactive polylactic acid-polypropylene composite fiber carrier material and preparation method thereof |
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| CN201510436441.0A CN104988717A (en) | 2015-07-23 | 2015-07-23 | Modified alveolar stone doped bioactive polylactic acid-polypropylene composite fiber carrier material and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179632A (en) * | 2018-08-31 | 2019-01-11 | 江苏新亿源环保科技有限公司 | A kind of preparation method of micro-polluted water polypropylene-base suspended biological filler |
| CN111087068A (en) * | 2019-12-24 | 2020-05-01 | 南京公诚节能新材料研究院有限公司 | Preparation method of biological filter material for water purification treatment |
| CN114196665A (en) * | 2020-09-17 | 2022-03-18 | 南京农业大学 | Carrier for refrigerating probiotic biofilms and preparation method thereof |
| CN114229992A (en) * | 2021-12-16 | 2022-03-25 | 李立欣 | Preparation of composite modified carrier and sewage treatment method |
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| CN101341025A (en) * | 2006-01-13 | 2009-01-07 | Nbc株式会社 | Composite material having antifouling property |
| CN202688079U (en) * | 2012-02-08 | 2013-01-23 | 河北益生环保科技有限公司 | Spherical pumice filling material |
| CN103387285A (en) * | 2012-05-11 | 2013-11-13 | 宁波天安生物材料有限公司 | Water treatment composite material |
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- 2015-07-23 CN CN201510436441.0A patent/CN104988717A/en active Pending
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| CN101341025A (en) * | 2006-01-13 | 2009-01-07 | Nbc株式会社 | Composite material having antifouling property |
| CN202688079U (en) * | 2012-02-08 | 2013-01-23 | 河北益生环保科技有限公司 | Spherical pumice filling material |
| CN103387285A (en) * | 2012-05-11 | 2013-11-13 | 宁波天安生物材料有限公司 | Water treatment composite material |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179632A (en) * | 2018-08-31 | 2019-01-11 | 江苏新亿源环保科技有限公司 | A kind of preparation method of micro-polluted water polypropylene-base suspended biological filler |
| CN111087068A (en) * | 2019-12-24 | 2020-05-01 | 南京公诚节能新材料研究院有限公司 | Preparation method of biological filter material for water purification treatment |
| CN114196665A (en) * | 2020-09-17 | 2022-03-18 | 南京农业大学 | Carrier for refrigerating probiotic biofilms and preparation method thereof |
| CN114196665B (en) * | 2020-09-17 | 2023-08-15 | 南京农业大学 | Carrier for refrigerating probiotics biological film and preparation method thereof |
| CN114229992A (en) * | 2021-12-16 | 2022-03-25 | 李立欣 | Preparation of composite modified carrier and sewage treatment method |
| CN114229992B (en) * | 2021-12-16 | 2022-10-28 | 广州市天河区林和粤财技术服务中心 | Preparation of composite modified carrier and sewage treatment method |
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Application publication date: 20151021 |