CN103304026B - Preparation method and use of compound immobilized biological carrier - Google Patents
Preparation method and use of compound immobilized biological carrier Download PDFInfo
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- CN103304026B CN103304026B CN201310283433.8A CN201310283433A CN103304026B CN 103304026 B CN103304026 B CN 103304026B CN 201310283433 A CN201310283433 A CN 201310283433A CN 103304026 B CN103304026 B CN 103304026B
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- polyurethane foam
- carrier
- sponge iron
- spheroid
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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
Abstract
The invention relates to the technical field of wastewater retreatment, and in particular relates to a preparation method and use of a compound immobilized biological carrier. The carrier is obtained by mixing a polyurethane foam particle and a sponge ion particle at the weight ratio of 1:(9-31), filling the mixture into a sphere, which is prepared from polypropylene, 100mm in diameter, and 99% in porosity, placing the sphere into activated sludge at the pH (Potential of Hydrogen) value of 7-8, carrying out acclimation for 2-4 hours, taking the sphere out, and cleaning and drying the sphere to obtain the compound immobilized biological carrier at the density of 1.5-2.0g/cm<3>. The carrier provided by the invention is convenient to prepare, simple to operate, low in running cost, high in treatment efficiency, and capable of saving investment and promoting economic efficiency.
Description
[technical field]
The invention belongs to technical field of sewage, be specifically related to a kind of preparation method and its usage of compound immobilization bio-carrier.
[background technology]
At present, at home and abroad, owing to lacking cost-effective improvement technique, the organic waste water of difficult degradation and high ammonia nitrogen, high phosphorus wastewater treatment are difficult problems always.For the waste water of different concns, need to take different treatment process.Often there are various deficiencies in single processing mode, therefore, compound sewage treating material becomes the focus of research.
Bio-carrier is one of core of microbial film water technology, is that microorganism depends on for existence and metabolic important place.At present, bio-carrier mainly be take polypropylene, polyethylene or polyester etc. and is made as raw material, mainly contains several large classes such as distributing, suspension type and immobilization formula.But in actual utilization, it is found that these bio-carriers aspect wetting ability a little less than, microorganism colonization is slow.The application of compound bio carrier in saprobia degraded is in recent years widely used and studies, the organic carrier of lightweight has larger specific surface area, has more advantage on processing efficiency, but be relatively difficult to fall heavy, so be easier to run off, limited the processing power of sewage; The metallic carrier particle that density is large falls heavy fast, but this class material surface is smooth, is not easy biofilm.
[summary of the invention]
[problem that invention will solve]
The object of the invention is to overcome the unicity of existing bio-carrier in disposing of sewage, the preparation method of the immobilization biological carrier after providing a kind of bio-carrier of different specific weight compound.
Another object of the present invention has been to provide the purposes of a kind of compound immobilization bio-carrier in the biochemical treatment of the organic waste water of difficult degradation, high ammonia nitrogen, high phosphorus waste water.
[technical scheme]
The technical scheme that the present invention solves the problems of the technologies described above is as follows:
A preparation method for compound immobilization bio-carrier, the method comprises the following steps:
1) sponge iron particle that is 3～4cm by particle diameter is being dried at 80～100 ℃, and sealing is preserved;
2) 100 parts of polyethers, 50 parts of tolylene diisocyanates, 3.1 parts of polyisocyanates, 4 parts of attapulgites, 0.45 part of silicon-dioxide, 0.25 part of tertiary amine, 0.14 part of oxidation of alkyl tin, 2.0 parts of water, 4.5 parts of methylene dichloride are added in biochemical reaction still successively, stir at normal temperatures and react post-foaming moulding, pulverizing and obtaining particle diameter is 3～4cm polyurethane foam grain;
3) by step 2) in polyurethane foam grain washing post-drying and step 1) in sponge iron particle be 1: 9～31 after being uniformly mixed by weight, be added in forcing machine, through melting, sponge iron particle and polyurethane foam grain are fully mixed, extrude, cut off, form the polyurethane foam grain that contains sponge iron particle;
4) by step 3) in the polyurethane foam grain that contains sponge iron particle that obtains to fill in the diameter made from polypropylene be in 100mm, the porosity spheroid that is 99%;
5) by step 4) in spheroid put into pH value be 7～8 active sludge, after the domestication reaction of 2～4h, by spheroid take out, to obtain density be 1.5～2.0g/cm to clean dry
3compound immobilization bio-carrier.
On the basis of technique scheme, the present invention can also do following improvement:
Further, by step 4) in spheroid innerly by identical material, be divided into two parts, four parts or six parts, the polyurethane foam grain decile that contains sponge iron particle is filled in spheroid.
This compound immobilization bio-carrier material is in the biochemical treatment of the organic waste water for difficult degradation, high ammonia nitrogen, high phosphorus waste water.
[beneficial effect]
The compound immobilization bio-carrier the present invention relates to has unique space structure, for the enrichment and growth of microorganism provides sufficient space, for various collaborative symbiosis aerobic, hold concurrently oxygen and anaerobion in biochemical reactor provide good " microenvironment "; This carrier has been owing to having added sponge iron, becomes with the multifunctional microbial absorption carrier of electrolytic action in chemical-biological, greatly improved the purification function of active sludge, strengthened the removal effect of COD, NH3-N, P in sewage; Improve microbic activity simultaneously, increased the removal effect of biochemical treatment to organism and total nitrogen.
The present invention is in practice in addition, easy to make, simple to operate, working cost is low, and processing efficiency is high, can reduce investment outlay, and promotes economic benefit.
[embodiment]
With the following Examples principle of the present invention and feature are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1:
100g polyethers, 50g tolylene diisocyanate, 3.1g polyisocyanates, 4g attapulgite, 0.45g silicon-dioxide, 0.25g tertiary amine, 0.14g oxidation of alkyl tin, 2.0g water, 4.5g methylene dichloride are added in biochemical reaction still successively, stir at normal temperatures and react post-foaming moulding, pulverizing and obtaining particle diameter is 3～4cm polyurethane foam grain.
After the dry sponge iron particle that is 3～4cm by 1g polyurethane foam grain and 9g particle diameter is uniformly mixed, be added in forcing machine, through melting, sponge iron particle and polyurethane foam grain are fully mixed, extrude, cut off, form the polyurethane foam grain that contains sponge iron particle; In two hemispheres up and down that the polyurethane foam grain that contains sponge iron particle to be filled in to the diameter made from polypropylene again and be 100mm, porosity be 99%, then two hemisphere are closed and buckled.
Finally, by close spheroid after button put into pH value be 7 active sludge, after the domestication reaction of 4h, by spheroid take out, to obtain density be that density is 1.5g/cm to clean dry
3compound immobilization bio-carrier.
Embodiment 2:
After the dry sponge iron particle that is 3～4cm by the 1g polyurethane foam grain in embodiment 1 and 31g particle diameter is uniformly mixed, be added in forcing machine, through melting, sponge iron particle and polyurethane foam grain are fully mixed, extrude, cut off, form the polyurethane foam grain that contains sponge iron particle; In two hemispheres up and down that the polyurethane foam grain that contains sponge iron particle to be filled in to the diameter made from polypropylene again and be 100mm, porosity be 99%, then two hemisphere are closed and buckled.
Finally, by close spheroid after button put into pH value be 8 active sludge, after the domestication reaction of 2h, by spheroid take out, to obtain density be 1.8g/cm to clean dry
3compound immobilization bio-carrier material.
Embodiment 3:
After the dry sponge iron particle that is 3～4cm by the 1g polyurethane foam grain in embodiment 1 and 21g particle diameter is uniformly mixed, be added in forcing machine, through melting, sponge iron particle and polyurethane foam grain are fully mixed, extrude, cut off, form the polyurethane foam grain that contains sponge iron particle; In two hemispheres up and down that the polyurethane foam grain that contains sponge iron particle to be filled in to the diameter made from polypropylene again and be 100mm, porosity be 99%, then two hemisphere are closed and buckled.
Finally, by close spheroid after button put into pH value be 7.5 active sludge, after the domestication reaction of 3.5h, by spheroid take out, to obtain density be 2.0g/cm to clean dry
3compound immobilization bio-carrier.
Application Example:
The compound immobilization bio-carrier of the embodiment of the present invention 1～3 gained is filled in respectively in the cylindric synthetic glass post of 3L, then correspondence joins in organic waste water, high ammonia-nitrogen wastewater and high phosphorus waste water successively, in the reactor of the condition of aerobic or anaerobism, carry out sewage disposal, the water quality of waste water is referring to table 1:
Table 1 waste water quality
Conclusion: reactor continuous operation 12h under aerobic condition, water outlet CODcr maintains 80mg.L-1 left and right, clearance between 86%～93%, stable water outlet.Wherein the water concentration that goes out of DMF is less than 3mg.L-1, and clearance has been up to 99.8%, and the concentration of water outlet TP is 0.8mg.L-1, clearance is 92.8%, water outlet NH3-N is less than 4.3mg/L, and its clearance reaches 94.7%, and water outlet indices has reached discharging standards completely.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. a preparation method for compound immobilization bio-carrier, is characterized in that, comprises the following steps:
1) sponge iron particle that is 3～4cm by particle diameter is dried at 80～100 ℃, and sealing is preserved;
2) 100 parts of polyethers, 50 parts of tolylene diisocyanates, 3.1 parts of polyisocyanates, 4 parts of attapulgites, 0.45 part of silicon-dioxide, 0.25 part of tertiary amine, 0.14 part of oxidation of alkyl tin, 2.0 parts of water, 4.5 parts of methylene dichloride are added in biochemical reaction still successively, stir at normal temperatures and react post-foaming moulding, pulverizing and obtaining particle diameter is 3～4cm polyurethane foam grain;
3) by step 2) in polyurethane foam grain washing post-drying and step 1) in sponge iron particle
Be 1: 9～31 after being uniformly mixed by weight, be added in forcing machine, through melting, sponge iron particle and polyurethane foam grain are fully mixed, extrude, cut off, form the polyurethane foam grain that contains sponge iron particle;
4) by step 3) in the polyurethane foam grain that contains sponge iron particle that obtains fill in the spheroid made from polypropylene, this sphere diameter is that 100mm, porosity are 99%, spheroid inside uses the material identical with spheroid to be divided into two parts, four parts or six parts, and the polyurethane foam grain decile that contains sponge iron particle is filled in spheroid;
5) by step 4) in spheroid put into pH value be 7～8 active sludge, after the domestication reaction of 2～4h, by spheroid take out, to obtain density be 1.5～2.0g/cm to clean dry
3compound immobilization bio-carrier.
2. a purposes for the compound immobilization bio-carrier of preparing according to method described in claim 1, is characterized in that, for the biochemical treatment of the organic waste water of difficult degradation, high ammonia nitrogen, high phosphorus waste water.
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| CN201310283433.8A CN103304026B (en) | 2013-07-08 | 2013-07-08 | Preparation method and use of compound immobilized biological carrier |
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| CN201310283433.8A CN103304026B (en) | 2013-07-08 | 2013-07-08 | Preparation method and use of compound immobilized biological carrier |
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| CN103304026A CN103304026A (en) | 2013-09-18 |
| CN103304026B true CN103304026B (en) | 2014-11-26 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106608674A (en) * | 2015-10-23 | 2017-05-03 | 北京瑞蓝科工程技术有限公司 | Phosphorus-removing filler and preparation method thereof |
| CN110937696B (en) * | 2019-12-24 | 2022-03-11 | 河北省科学院生物研究所 | Composite material and method for removing nitrogen and phosphorus in wastewater |
| CN111233145B (en) * | 2020-01-16 | 2022-04-08 | 桂林理工大学 | Inorganic-organic material synergistic rapid-separation biochemical ball and preparation method thereof |
| CN114291896B (en) * | 2022-03-09 | 2022-05-13 | 广州加泰医药科技有限公司 | Carrier-solidified microbial sewage treatment agent and preparation method thereof |
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Effective date of registration: 20171018 Address after: 102299, No. 2, No. 16, building No. 37, No. 2 hospital, Changping District science and Technology Park, Beijing, Patentee after: Beijing jinkeyuan environmental protection science and technology limited liability company Address before: A district 102208 Beijing city Changping District Huilongguan Tianlu garden 8-4-101 Patentee before: Beijing Jinke Composites Co., Ltd. |
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