CN210710961U - Biological fluidized bed carrier - Google Patents
Biological fluidized bed carrier Download PDFInfo
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- CN210710961U CN210710961U CN201921218679.6U CN201921218679U CN210710961U CN 210710961 U CN210710961 U CN 210710961U CN 201921218679 U CN201921218679 U CN 201921218679U CN 210710961 U CN210710961 U CN 210710961U
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- activated carbon
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- fluidized bed
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Abstract
The utility model discloses a biological fluidized bed carrier, the carrier comprises a plurality of granular activated carbon and the magnetic layer with granular activated carbon parcel. The utility model discloses a surface at granule active carbon wraps up MnFe2O4Magnetic nanoparticle layer of MnFe2O4The magnetic nano particle layer enables the carrier to generate a magnetic field, the magnetic field cannot influence the adsorption capacity of the granular activated carbon to microorganisms in the sewage, and meanwhile, the reduction of phenolic substances in the sewage by the carrier can be further improvedThe decomposition rate is increased, the biodegradation capacity of microorganisms adsorbed by the granular activated carbon is improved, and the MnFe2O4The magnetic nano particles have the function of adsorbing and separating organic matters in sewage, and can greatly improve the sewage purifying capacity of the biological fluidized bed and the degradation efficiency by matching with granular activated carbon.
Description
Technical Field
The utility model belongs to the sewage treatment field especially relates to a biological fluidized bed carrier.
Background
The biological fluidized bed is a sewage biological membrane technology, the core component of the biological fluidized bed is a carrier filled in the bed body, the traditional biological fluidized bed usually adopts quartz sand, anthracite, coke, granular activated carbon and polystyrene spheres as the carrier, the surface of the carrier is covered with a biological membrane, when sewage flows through the biological fluidized bed from bottom to top at a certain flow speed, the carrier is in a fluidized state, and adsorbs microorganisms, and micromolecular organic matters in the sewage are decomposed by utilizing the biodegradation capacity of the microorganisms, so that the purification of the sewage is realized.
The carrier used by the traditional biological fluidized bed has the advantages of large specific surface area, good contact with a biological membrane, good hydrophilicity, developed pore structure, strong adsorption capacity, high mechanical strength, small bed resistance, good chemical stability, easy regeneration, durability and the like, but has no magnetism. In the thirteen century, the influence of the magnetic field on the water property is discovered medically, recent researches show that the magnetic field can enable the removal rate of BOD5, COD and ammonia nitrogen of the bioreactor to be higher, increase the degradation rate of phenolic substances, improve the biodegradation capacity of bacteria, increase the biofilm formation speed of the biofilm reactor and improve the decolorization rate, and the separation effect of the magnetic material is widely used for adsorbing and separating particles, heavy metals, phosphorus, algae, floating oil, phenols, viruses and even some radioactive substances in wastewater. At present, no technology for combining the biological fluidized bed carrier with the magnetic field is disclosed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: provides a biological fluidized bed carrier, which can improve the sewage purification effect by combining the carrier with a magnetic field.
For solving the technical problem the utility model discloses the technical scheme who adopts is: the biological fluidized bed carrier consists of a plurality of granular activated carbons and a magnetic layer wrapping the granular activated carbons.
Further, the method comprises the following steps: the magnetic layer is MnFe2O4A magnetic nanoparticle layer.
The utility model has the advantages that: the utility model discloses a surface at granule active carbon wraps up MnFe2O4Magnetic nanoparticle layer of MnFe2O4The magnetic nano particle layer enables the carrier to generate a magnetic field, the magnetic field cannot influence the adsorption capacity of the granular activated carbon on microorganisms in the sewage, and meanwhile, the degradation rate of the carrier on phenolic substances in the sewage can be further improved, and the biodegradation capacity of the microorganisms adsorbed by the granular activated carbon is improved; MnFe2O4The magnetic nano particles have high adsorption performance and magnetic separation performance, can adsorb and separate organic matters in sewage, can greatly improve the sewage purification capacity of the biological fluidized bed by matching with granular activated carbon, improves the degradation efficiency, can ensure that the biological fluidized bed does not need to be provided with a demoulding device independently, reduces the power consumption and the operation cost, and MnFe has high adsorption performance and magnetic separation performance, can reduce the energy consumption of the biological fluidized bed, and can be used for solving the problems of high pollution and high pollution caused by the sewage treatment2O4The magnetic layer formed by wrapping the granular activated carbon with the magnetic nanoparticles can protect the granular activated carbon, prevent the loss of the carrier and improve the fluidization performance of the carrier.
Drawings
FIG. 1 is a schematic view of the present invention;
labeled as: 1-granular activated carbon, 2-magnetic layer and 3-biological membrane.
Detailed Description
In order to facilitate understanding of the present invention, the following description is further provided with reference to the accompanying drawings.
As shown in fig. 1, the biological fluidized bed carrier disclosed in the present invention is composed of granular activated carbon 1 and a magnetic layer 2, the granular activated carbon 1 is wrapped by the magnetic layer 2, and after the carrier is filled in the biological fluidized bed, the biological membrane 3 covers the surface of the magnetic layer 2. The magnetic field generated by the magnetic layer 2 can increase the degradation rate of the carrier to phenolic substances in the sewage, improve the biodegradation capacity of microorganisms adsorbed by the granular activated carbon, and adsorb and separate organic substances in the sewage, thereby greatly improving the sewage purification capacity of the biological fluidized bed.
The utility model discloses well magnetic layer 2 is by a plurality of MnFe with 1 parcel of granular active carbon2O4Magnetic nanoparticle composition of MnFe2O4The magnetic nanoparticles can generate a magnetic field, and the magnetic nanoparticles are MnFe2O4The magnetic nano particles have high adsorption performance and magnetic separation performance, can further enhance the adsorption capacity of the carrier when being used as the magnetic layer 2, cannot influence the function of the granular activated carbon 1 as the carrier, and are complementary to each other, and simultaneously MnFe2O4The high adsorption performance of the magnetic nano particles can ensure MnFe2O4The magnetic nano particles can be adsorbed on the surface of the granular activated carbon 1 to improve the strength of the carrier, strengthen the protection effect on the granular activated carbon 1 and prevent the loss of the granular activated carbon 1.
Claims (2)
1. The biological fluidized bed carrier is characterized in that: the carrier consists of a plurality of granular activated carbons (1) and a magnetic layer (2) wrapping the granular activated carbons (1).
2. The biological fluidized bed carrier of claim 1, wherein: the magnetic layer (2) is MnFe2O4A magnetic nanoparticle layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921218679.6U CN210710961U (en) | 2019-07-30 | 2019-07-30 | Biological fluidized bed carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921218679.6U CN210710961U (en) | 2019-07-30 | 2019-07-30 | Biological fluidized bed carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210710961U true CN210710961U (en) | 2020-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921218679.6U Active CN210710961U (en) | 2019-07-30 | 2019-07-30 | Biological fluidized bed carrier |
Country Status (1)
| Country | Link |
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| CN (1) | CN210710961U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110304739A (en) * | 2019-07-30 | 2019-10-08 | 中国电建集团成都勘测设计研究院有限公司 | Biological fluidized bed carrier |
| CN114014417A (en) * | 2021-11-04 | 2022-02-08 | 飞潮（无锡）过滤技术有限公司 | Fluidized bed purification system with magnetic particles and application method thereof |
-
2019
- 2019-07-30 CN CN201921218679.6U patent/CN210710961U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110304739A (en) * | 2019-07-30 | 2019-10-08 | 中国电建集团成都勘测设计研究院有限公司 | Biological fluidized bed carrier |
| CN114014417A (en) * | 2021-11-04 | 2022-02-08 | 飞潮（无锡）过滤技术有限公司 | Fluidized bed purification system with magnetic particles and application method thereof |
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