CN1202025C - Process for preparing hydrophilic elastic plastic filler for treating water - Google Patents
Process for preparing hydrophilic elastic plastic filler for treating water Download PDFInfo
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- CN1202025C CN1202025C CNB011298340A CN01129834A CN1202025C CN 1202025 C CN1202025 C CN 1202025C CN B011298340 A CNB011298340 A CN B011298340A CN 01129834 A CN01129834 A CN 01129834A CN 1202025 C CN1202025 C CN 1202025C
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- water
- filler
- powder
- water treatment
- hydrophilic
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Biological Treatment Of Waste Water (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a preparation method for water treatment hydrophilic elastic plastic filling materials, which belongs to the high molecular material alloy processing and preparing technology. Water-soluble high molecular materials are mixed in plastics for improving the hydrophilic performance of the material surface, and plastic materials with the hydrophilic surfaces for preparing the water treatment elastic filling materials are obtained. A specific preparation method has the steps: 1, common plastic granules PP, PE, PVC or a mixture of the common plastic granules PP, PE, PVC, water-soluble high molecular material powder (polyvinyl alcohol or polyacrylamide or a mixture of the polyvinyl alcohol and the polyacrylamide), inorganic powder (mountain flour or titanium dioxide powder or silicon dioxide powder and the like) are weighed according to a certain percentage and are uniformly mixed in a mixer; 2, the mixture is made into granulates in an injection molding machine; 3, the prepared granules are made into the desired water treatment and waste water treatment filling materials with the hydrophilic surfaces through injection molding in the injection molding machine according to different specification requirements of the filling materials. The present invention has the advantages of simple method, easy production and easy preparation. The rough surfaces of products are favorable for the microbe film adhesion, the hydrophilic performance of the surfaces of the filling materials can be improved, the microbe film adhesion velocity and the microbe film adhesion intensity in a water treatment system can be greatly improved, the starting and the debugging of the water treatment system by a biological film method are convenient, and the treatment reliability is improved.
Description
(1) technical field:
The present invention is a process for preparing hydrophilic elastic plastic filler for treating water, belongs to macromolecular material alloy processing and preparing technology.
(2) background technology:
On the biochemical processing process of waste water, use filler in the application that obtains at present more and more widely.Consult domestic patent and document, all be confined to the external form of filler about the content of water and use in waste water treatment filler, the working method of filler, the array mode of fiber and plastics etc. in the filler, and not about the macromolecular material content of water and use in waste water treatment filler.The situation of material surface and the property relationship of filler are very big.The surperficial possess hydrophilic property that makes filler is one of key of producing fine water and wastewater treatment filler.Making the surface of material have hydrophilic radical, is to improve the hydrophilic common method of material surface.The common method of hydrophilic radical being brought into material surface has: hydrophilic coating is smeared on the surface, and the surface connects the polymer monomer that skill has hydrophilic radical, or sneaks into water-soluble hydrophilic high molecular material in the common plastics material.The surface is smeared hydrophilic coating and is easy to soluble in water coming off because of coating, so be difficult to carry out practical application; The surface connects the polymer monomer that skill has hydrophilic radical, can adopt the method for high-energy irradiation, surface at filler produces living radical, free radical carries out initiated polymerization with water-soluble monomer again, and make water soluble group in the material surface grafting, but because the general more complicated of shape of filler, often require to have bigger specific surface, remove the outside surface of filler, the internal surface that also has filler, and high-energy irradiation is difficult to the surfaces externally and internally of even irradiation filler, thus make the wetting ability of the surfaces externally and internally of filler produce difference, thus also influence its result of use.
Filler is one of important material of microbial film water treatment system.Be easy to bio-film colonization, particularly the filler of anaerobe biofilm and the ballistic aerobe biofilm of anti-aeration filler are extremely important; Along with the raising of environmental protection requirement, high quality filler has huge market application foreground.The elasticity of plastics filler of domestic production at present all exists the shortcoming of surface hydrophilicity difference, because the hydrophobicity of filling surface, microorganism is difficult in its surface attachment, anaerobion particularly, because of the biological growing amount of anaerobic biochemical reaction process low, and tack is poor, is difficult to biofilm on present ordinary elasticity filler, thereby makes the anaerobic biochemical reactor load of flexible filler be difficult to improve; React for aerobic biochemical, though the biological growing amount of biochemical reaction is higher, the adsorptive power of aerobic microbiological is also strong than anaerobion, but hydrophobicity because of filling surface, also greatly reduce the adsorption strength of microorganism at filling surface, sometimes under the intense impact of aerobic aeration, the microorganism that is adsorbed on filling surface is easy to split away off, thereby has also reduced the biological adsorptive capacity of filling surface.So overcome the hydrophobicity of frosting, make it have the key that hydrophilic surface becomes development and produces high quality filler; Plastic material commonly used, as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC) etc. because of there not being hydrophilic radical on its macromolecular chain, so their surface all is hydrophobic.The elastic filler of the different shape of making of these plastic materials is restricted because of surface hydrophobicity makes its biofilm ability.Use the medium-soft combined stuffing, though the pars fibrosa of dosing has increased the surface-area of filler greatly, the part fiber is also hydrophilic than plastics, so can the force rate general elastic filler of the biofilm of filler is much better than.But because tiny fiber yarn fracture easily under the impact of current, and be easy to behind the microorganism colonization fiber yarn in the filler is formed a monoblock and reduced its biofilm effect, so have filametntary medium-soft combined stuffing short defective in work-ing life is arranged, in application, use the filler that just needed in 2～3 years to change in the biochemical reaction tank sometimes, cause the waste of manpower and materials.
(3) summary of the invention:
Purpose of the present invention be exactly for overcome and solve existing frosting smear coating in the hydrophilic coating technology soluble in water in and come off, be difficult to practicality, or surface grafting is had a polymer monomer of hydrophilic radical, high-energy irradiation is difficult to the surfaces externally and internally of even irradiation filler, make filler surfaces externally and internally wetting ability difference big, result of use is poor.Because filling surface hydrophobicity, greatly reducing microbe stuffing surface adsorption intensity reaches at its surface adhesion, filling surface biofilm ability is restricted, or be with filametntary medium-soft combined stuffing short work-ing life, wasting manpower and material resources's etc. shortcoming and problem, a kind of process for preparing hydrophilic elastic plastic filler for treating water of research invention, it is set about from the modification of material, to improve the surface hydrophilic situation of filler material, thereby improve the application performance of filler, sneaking into water-soluble high-molecular material in common plastics, can improve the hydrophilicity of material surface greatly, is the method that the present invention is used to improve the filling surface hydrophilicity.
The present invention realizes by following technical proposals: sneak into water-soluble high-molecular material in common plastics, to improve the hydrophilicity of material surface greatly, make the plastic material on possess hydrophilic property surface, be used to make the elastic filler of water and wastewater treatment; Plastics variety commonly used has: polypropylene (PP), high pressure or low pressure polyethylene (PE), polyvinyl chloride (PVC) class; The water-soluble high-molecular material that is used to improve the hydrophilicity of material surface has: polyvinyl alcohol, polyacrylamide, modified starch series; In order to regulate the proportion of filler, by adding an amount of inorganic powder---stone flour, powder titanium dioxide, silica-based make it can float on request in water treatment, sink or suspend; The concrete making method of the elastic filler on possess hydrophilic property surface is as follows: (1) takes by weighing the common plastics particle---PP, PE, PVC or their mixture 50～90%; Take by weighing the water-soluble high-molecular material powder---polyvinyl alcohol, polyacrylamide or their mixture 5～45%; Take by weighing inorganic powder---stone flour, powder titanium dioxide, silica-based 2～10%; They are mixed in mixing tank; (2) material that above-mentioned steps (1) is mixed drops in the injection moulding machine, at first makes being mixed with common plastics, water-soluble high-molecular material and small amounts of inorganic particles of powder material; (3) particulate material of making of above-mentioned steps (2) in injection moulding machine, by the different size and the requirement of filler, is injection molded into required water that water-wetted surface is arranged and use in waste water treatment elastic filler.
The present invention compared with prior art has following advantage and beneficial effect: (1) is from appearance, and is more smooth with the elastic filler surface that common plastics (PP, PE or PVC) is manufactured, and the filling surface of manufacturing with mixing material of the present invention is relatively coarse.In being applied to water and wastewater treatment process, the coarse biofilm of adhering to that will help microorganism on surface at filling surface; (2) elastic filler is put into water and take out from water and to observe, with the elastic filler that common plastics (PP, PE or PVC) is manufactured, the very fast formation globule of its surperficial water comes off from filling surface; And with the filler that mixing material of the present invention is manufactured, from water, take out, water forms moisture film relatively uniformly on the surface of filler, shows the filling surface good hydrophilicity; (3) elastic filler being put into the sewage disposal pilot system tests, with the elastic filler that common plastics (PP, PE or PVC) is manufactured, in system for anaerobic treatment, anaerobion is difficult in the filling surface biofilm, pilot system operation one month all is difficult to observe tangible biofilm phenomenon; And, after system moves a week, promptly can be observed the microorganism colonization phenomenon with the filler that mixing material of the present invention is manufactured.This explanation the present invention has improved the hydrophilicity of filling surface, can promote the biofilm of anaerobion at filling surface greatly.In the aerobic treatment system, impact less zone at aeration, with the elastic filler that common plastics (PP, PE or PVC) is manufactured, after 1～2 week of operation, can find microorganism colonization in pilot system; And the filler that mixing material of the present invention is manufactured pilot system operation 1～2 day, can have been found the microorganism colonization phenomenon.Impact bigger zone at aeration, the elastic filler of manufacturing with common plastics (PP, PE or PVC), microorganism is difficult in the filling surface biofilm, pilot system operation 1 month, there is not the biofilm phenomenon yet, and,, just can find the microorganism colonization phenomenon pilot system operation 1～2 day with the filler that mixing material of the present invention is manufactured.The elastic filler of using mixing material of the present invention to manufacture can greatly improve biofilm speed and the biofilm intensity of microorganism in the Waste Water Treatment, and the Start-up and Adjustment of the wastewater treatment biochemical system of filler easy to use improves the reliability that its operation is handled.
(4) embodiment:
The contriver thinks that realization the present invention is fairly simple, easy, as long as progressively operate by the described making method step of top specification sheets, just can realize the present invention preferably, and the injection moulding machine in implementation process can be selected DPI-120 type injection moulding machine for use.The contriver has more successful embodiment through long-time research trial, only is shown in following table 1 for 3 embodiment below:
Table 1:
Claims (1)
1, a kind of process for preparing hydrophilic elastic plastic filler for treating water, it is characterized in that: in common plastics, sneak into water-soluble high-molecular material, to improve the hydrophilicity of material surface greatly, make the plastic material on possess hydrophilic property surface, be used to make the elastic filler of water and wastewater treatment; Plastics variety commonly used has: polypropylene PP, high pressure or low pressure polyethylene PE, polyvinylchloride class; The water-soluble high-molecular material that is used to improve the hydrophilicity of material surface has: polyvinyl alcohol, polyacrylamide, modified starch series; In order to regulate the proportion of filler, by adding an amount of inorganic powder---stone flour, powder titanium dioxide, silica-basedly make it can in treating water, float on request, sink or suspend; The concrete making method of the elastic filler on possess hydrophilic property surface is as follows: (1) takes by weighing the common plastics particle by weight percentage---polypropylene PP, high pressure or low pressure polyethylene PE, polyvinylchloride or their mixture 50～90%; Take by weighing the water-soluble high-molecular material powder by weight percentage---polyvinyl alcohol, polyacrylamide or their mixture 5～45%; Take by weighing inorganic powder by weight percentage---stone flour, powder titanium dioxide, silica-based 2～10%; They are mixed in mixing tank; (2) material that above-mentioned steps (1) is mixed drops in the injection moulding machine, at first makes being mixed with common plastics, water-soluble high-molecular material and small amounts of inorganic particles of powder material; (3) particulate material of making of above-mentioned steps (2) in injection moulding machine, by the different size and the requirement of filler, is injection molded into required water that water-wetted surface is arranged and use in waste water treatment elastic filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011298340A CN1202025C (en) | 2001-10-31 | 2001-10-31 | Process for preparing hydrophilic elastic plastic filler for treating water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011298340A CN1202025C (en) | 2001-10-31 | 2001-10-31 | Process for preparing hydrophilic elastic plastic filler for treating water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1350984A CN1350984A (en) | 2002-05-29 |
| CN1202025C true CN1202025C (en) | 2005-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB011298340A Expired - Fee Related CN1202025C (en) | 2001-10-31 | 2001-10-31 | Process for preparing hydrophilic elastic plastic filler for treating water |
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| CN (1) | CN1202025C (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304303C (en) * | 2005-01-07 | 2007-03-14 | 清华大学 | Method for preparing controlled release high molecular carbon source material for biological method to treat water |
| CN101284694B (en) * | 2007-04-15 | 2010-04-21 | 于春荣 | Hydrophilic active biological film suspend carrier and method for making the same |
| CN101671077B (en) * | 2009-09-30 | 2012-10-17 | 江苏苏净集团有限公司 | Film-forming material on filler for removing nitrogen from wastewater |
| CN101785987B (en) * | 2009-10-25 | 2011-12-21 | 中国海洋大学 | Preparation method for regular plastic catalytic padding for seawater desulfurization |
| CN101936678B (en) * | 2010-09-10 | 2012-02-01 | 胡连江 | Method for improving thermal property of cooling tower packing |
| CN102070247B (en) * | 2010-10-28 | 2012-05-09 | 华南理工大学 | Concrete modified plastic filler and preparation method thereof |
| CN102134344B (en) * | 2010-12-22 | 2012-07-25 | 朱同德 | Biparental high polymer coalescence degreasing material as well as preparation and application thereof |
| CN103043782B (en) * | 2013-01-15 | 2013-12-04 | 南京元凯生物能源环保工程有限公司 | Preparation method of biological disk |
| CN103387283B (en) * | 2013-07-14 | 2016-05-11 | 梁锦雄 | A kind of active bio carrier material |
| CN103951048B (en) * | 2014-04-04 | 2016-08-17 | 北京工业大学 | A kind of anaerobic ammonium oxidizing bacteria immobilization fixed type biological active filler based on mesh carrier preparation and application |
| CN103951075B (en) * | 2014-04-04 | 2016-05-18 | 北京工业大学 | A kind of ammonia oxidizing bacteria immobilization fixed type biological active filler preparation and application based on mesh carrier |
| CN107098479A (en) * | 2016-02-22 | 2017-08-29 | 上海天维亚编织有限公司 | The biological rope biologic packing material that modified hydrophilic synthetic fibers are made into |
| CN107640822A (en) * | 2016-07-22 | 2018-01-30 | 中国环境科学研究院 | A kind of hydrophilically modified method of plastic filler surface grafting anti-agglomeration |
| CN106362713B (en) * | 2016-11-02 | 2019-05-03 | 湖北工业大学 | A kind of magnetic adsorbent and preparation method containing kayexalate |
| CN109650477A (en) * | 2019-01-22 | 2019-04-19 | 徐志红 | A kind of filler and its application |
| CN111151313A (en) * | 2019-12-26 | 2020-05-15 | 重庆创芯生物科技有限公司 | Material for preparing hydrophilic microfluidic chip and microfluidic chip |
| CN113172948A (en) * | 2021-04-29 | 2021-07-27 | 天津市伟星新型建材有限公司 | Anti-scaling floor heating pipeline with high thermal conductivity and preparation method thereof |
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2001
- 2001-10-31 CN CNB011298340A patent/CN1202025C/en not_active Expired - Fee Related
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