CN114515507A - Biological deodorization filler and preparation method thereof - Google Patents
Biological deodorization filler and preparation method thereof Download PDFInfo
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- CN114515507A CN114515507A CN202011307019.2A CN202011307019A CN114515507A CN 114515507 A CN114515507 A CN 114515507A CN 202011307019 A CN202011307019 A CN 202011307019A CN 114515507 A CN114515507 A CN 114515507A
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- 239000000945 filler Substances 0.000 title claims abstract description 162
- 238000004332 deodorization Methods 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title description 5
- 239000004743 Polypropylene Substances 0.000 claims abstract description 79
- -1 polypropylene Polymers 0.000 claims abstract description 79
- 229920001155 polypropylene Polymers 0.000 claims abstract description 79
- 239000011435 rock Substances 0.000 claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims description 10
- 238000011049 filling Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 2
- 230000002378 acidificating effect Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000001877 deodorizing effect Effects 0.000 abstract 2
- 239000002253 acid Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000010298 pulverizing process Methods 0.000 description 5
- 238000005842 biochemical reaction Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 238000010170 biological method Methods 0.000 description 3
- 239000002781 deodorant agent Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
- B01D53/85—Biological processes with gas-solid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention relates to the technical field of deodorizing filler, in particular to a biological deodorizing filler, which comprises the following components: 40-70 parts of polypropylene polyhedral hollow spheres, 10-20 parts of polypropylene rosettes, 5-15 parts of volcanic rock filler and 15-25 parts of carbon filler. The invention solves the problem that the biological deodorization filler is easy to be pulverized to cause the hardening of the filler bed layer in the prior art. The biological deodorization filler increases the specific surface area through the polypropylene polyhedral hollow spheres, the polypropylene rosettes and the volcanic rock filler, so that the biological deodorization filler is more beneficial to the growth and the reproduction of biological floras in an acidic and high-humidity operating environment, obtains a better deodorization effect, and simultaneously meets the requirements of difficult corrosion, good durability and long service life.
Description
Technical Field
The invention relates to the technical field of deodorization fillers, in particular to a biological deodorization filler and a preparation method thereof.
Background
Malodorous gas is a generic term for gases that cause an intolerable odor or an unpleasant sensation in the human living environment. Sewage treatment plants, refuse disposal plants, etc. are also major pollution sources for the production of malodorous gases. The existing malodorous gas treatment process comprises the following steps: biological methods, incineration methods, adsorption methods, chemical washing methods, and the like. The biological method is widely applied and stably operated, and is a common deodorization process for sewage treatment plants, the biological filter is one of common processes of the biological method, and the filler proportion of the biological filter is a technical core point of the process.
The conventional biological filter is commonly filled with materials such as wood, volcanic rock and the like. The materials are easy to generate the phenomena of rotting and powdering under the acidic and high-humidity operating environment, the packing bed layer is easy to harden, and finally the biological filter tank is easy to block and lose efficacy. In the prior art, the workload of replacing the biological filler bed is large, and the operation risk of limited space exists, so that the cost is greatly increased, and the normal production operation of the deodorization system of the sewage treatment plant is influenced.
Disclosure of Invention
In view of the disadvantages of the prior art, the present invention aims to provide a biological deodorization filler, which is used for solving the problem of the prior art that the biological deodorization filler is easy to be pulverized to cause the hardening of a filler bed, and also provides a preparation method of the biological deodorization filler. The biological deodorization filler increases the specific surface area through the polypropylene polyhedral hollow spheres, the polypropylene rosettes and the volcanic rock filler, so that the biological deodorization filler is more beneficial to the growth and the reproduction of biological floras in an acidic and high-humidity operating environment, obtains a better deodorization effect, and simultaneously meets the requirements of difficult corrosion, good durability and long service life.
In order to attain the above and other related objects,
in a first aspect of the present invention, a biological deodorization filler is provided, which comprises the following components in parts by weight: 40-70 parts of polypropylene polyhedral hollow spheres, 10-20 parts of polypropylene rosettes, 5-15 parts of volcanic rock filler and 15-25 parts of carbon filler.
The biological deodorization filler is a multi-component deodorization filler prepared from polypropylene multi-surface hollow spheres, polypropylene rosettes, volcanic rock filler and carbon filler and is used for a biological bed layer of a biological filter. The biological deodorization filler increases the specific surface area through the polypropylene polyhedral hollow spheres, the polypropylene rosettes and the volcanic rock filler, so that the biological deodorization filler is more beneficial to the growth and the reproduction of biological floras in an acidic and high-humidity operating environment, obtains a better deodorization effect, and simultaneously meets the requirements of difficult corrosion, good durability and long service life.
The biological deodorization filler has the advantages of tough structure, strong acid and alkali resistance and large specific surface area, and can improve the biochemical reaction efficiency. The biological deodorization filler can resist biological degradation, has high acid resistance, and cannot be changed in quality under the working conditions of acidity and high humidity, so that the phenomena of pulverization and hardening cannot occur.
In an embodiment of the present invention, the biological deodorization filler comprises the following components in parts by weight: 10-20 parts of polypropylene polyhedral hollow sphere A, 30-50 parts of polypropylene polyhedral hollow sphere B, 10-20 parts of polypropylene rosette, 5-15 parts of volcanic rock filler and 15-25 parts of carbon filler;
the diameter of the polypropylene polyhedral hollow sphere A is 45-55 mm, the diameter of the polypropylene polyhedral hollow sphere B is 35-40 mm, and the diameter of the polypropylene rosette is 45-55 mm.
The biological deodorization filler comprises polypropylene multi-face hollow spheres with different sizes, and the polypropylene multi-face hollow spheres A are used as a filler cushion layer and play a supporting role. The polypropylene polyhedral hollow sphere B plays a role in filling carbon fillers, increasing the specific surface area, improving the biochemical reaction efficiency and increasing the porosity among filter materials.
The polypropylene flower ring is formed by the filler shaped like an ellipsoid and formed by a plurality of circles in a surrounding way, and because the gap of the filler can have higher liquid holdup, the liquid in the tower can stay for a longer time, thereby increasing the contact time of gas phase and liquid phase and improving the mass transfer efficiency of the filler. The polypropylene garland is used in the biological deodorization filler, so that gas and liquid can effectively contact with the biological deodorization filler, the porosity between filter materials is increased, and the polypropylene garland has a tough structure, so that the phenomena of pulverization and hardening cannot occur.
In an embodiment of the present invention, the biological deodorization filler comprises the following components in parts by weight: 12-15 parts of polypropylene polyhedral hollow spheres A, 40-50 parts of polypropylene polyhedral hollow spheres B, 12-16 parts of polypropylene rosettes, 8-12 parts of volcanic rock filler and 20-25 parts of carbon filler.
In an embodiment of the present invention, the diameter of the polypropylene polyhedral hollow sphere a is 50mm, the diameter of the polypropylene polyhedral hollow sphere B is 38mm, and the diameter of the polypropylene rosette is 51 mm.
In an embodiment of the invention, the particle size of the volcanic filler is 40-50 mm.
In an embodiment of the present invention, the particle size of the volcanic rock filler is 45 mm.
In a second aspect of the present invention, there is provided a method for preparing the above-mentioned bio-deodorant filler, comprising the steps of:
step one, uniformly mixing a polypropylene polyhedral hollow sphere B, a polypropylene rosette, volcanic rock filler and carbon filler according to a weight part ratio to obtain a mixed filler for later use;
and step two, flatly paving the polypropylene polyhedral hollow sphere A on a filler supporting piece (the filler supporting piece is arranged in the biological filter), and filling the mixed filler obtained in the step one above the polypropylene polyhedral hollow sphere A to obtain the composite material.
The biological deodorization filler comprises polypropylene multi-face hollow spheres with different sizes, and the polypropylene multi-face hollow spheres A are used as a filler cushion layer and play a supporting role.
The biological deodorization filler is filled into the biological filter, and the porosity between filter materials is larger, so the pressure loss of equipment is lower. In addition, the biological deodorization filler can resist biological degradation, has high acid resistance, and cannot be changed in quality under the working conditions of acidity and high humidity, so that the phenomena of pulverization and hardening cannot occur.
As mentioned above, the biological deodorization filler and the preparation method thereof have the following beneficial effects:
1. the biological deodorization filler is a multi-component deodorization filler prepared from polypropylene multi-surface hollow spheres, polypropylene rosettes, volcanic rock filler and carbon filler and is used for a biological bed layer of a biological filter. The biological deodorization filler increases the specific surface area through the polypropylene polyhedral hollow spheres, the polypropylene rosettes and the volcanic rock filler, so that the biological deodorization filler is more beneficial to the growth and the reproduction of biological floras in an acidic and high-humidity operating environment, obtains a better deodorization effect, and simultaneously meets the requirements of difficult corrosion, good durability and long service life.
2. The biological deodorization filler has the advantages of tough structure, strong acid and alkali resistance and large specific surface area, and can improve the biochemical reaction efficiency. The biological deodorization filler can resist biological degradation, has high acid resistance, and cannot be changed in quality under the working conditions of acidity and high humidity, so that the phenomena of pulverization and hardening cannot occur.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Example 1
10 parts of polypropylene polyhedral hollow spheres with the diameter of 50mm are flatly paved on a filler supporting piece (the filler supporting piece is arranged in the biological filter) to be used as a filler cushion layer. Uniformly stirring 40 parts of polypropylene polyhedral hollow spheres with the diameter of 38mm, 20 parts of polypropylene rosettes with the diameter of 51mm, 10 parts of volcanic filler with the particle size of 45mm and 20 parts of carbon filler by using a mechanical stirrer to obtain mixed filler, and filling the mixed filler into a box body of a biological filter to obtain the biological deodorization filler; wherein the mixed filler is placed above the filler mat.
Example 2
10 parts of polypropylene polyhedral hollow spheres with the diameter of 50mm are flatly paved on a filler supporting piece (the filler supporting piece is arranged in the biological filter) to be used as a filler cushion layer. Uniformly stirring 45 parts of polypropylene polyhedral hollow spheres with the diameter of 38mm, 10 parts of polypropylene rosettes with the diameter of 51mm, 10 parts of volcanic filler with the particle size of 45mm and 25 parts of carbon filler by using a mechanical stirrer to obtain mixed filler, and filling the mixed filler into a box body of a biological filter to obtain the biological deodorization filler; wherein the mixed filler is placed above the filler mat.
Example 3
10 parts of polypropylene polyhedral hollow spheres with the diameter of 50mm are flatly paved on a filler supporting piece (the filler supporting piece is arranged in the biological filter) to be used as a filler cushion layer. Uniformly stirring 40 parts of polypropylene polyhedral hollow spheres with the diameter of 38mm, 15 parts of polypropylene rosettes with the diameter of 51mm, 10 parts of volcanic filler with the particle size of 45mm and 25 parts of carbon filler by using a mechanical stirrer to obtain mixed filler, and filling the mixed filler into a box body of a biological filter to obtain the biological deodorization filler; wherein the mixed filler is placed above the filler mat.
Example 4
And (3) paving 11 parts of polypropylene polyhedral hollow spheres with the diameter of 50mm on a filler supporting piece (the filler supporting piece is arranged in the biological filter) to be used as a filler cushion layer. Uniformly stirring 40 parts of polypropylene polyhedral hollow spheres with the diameter of 36mm, 14 parts of polypropylene rosettes with the diameter of 51mm, 9 parts of volcanic filler with the particle size of 45mm and 23 parts of carbon filler by using a mechanical stirrer to obtain mixed filler, and filling the mixed filler into a box body of a biological filter to obtain the biological deodorization filler; wherein the mixed filler is placed above the filler mat.
Example 5
And (3) spreading 12 parts of polypropylene polyhedral hollow spheres with the diameter of 48mm on a filler supporting piece (the filler supporting piece is arranged in the biological filter) to be used as a filler cushion layer. Uniformly stirring 42 parts of polypropylene polyhedral hollow spheres with the diameter of 36mm, 13 parts of polypropylene rosettes with the diameter of 49mm, 9 parts of volcanic filler with the particle diameter of 47mm and 23 parts of carbon filler by using a mechanical stirrer to obtain mixed filler, and filling the mixed filler into a box body of a biological filter to obtain the biological deodorization filler; wherein the mixed filler is placed above the filler mat.
Example 6
And (3) paving 11 parts of polypropylene polyhedral hollow spheres with the diameter of 52mm on a filler supporting piece (the filler supporting piece is arranged in the biological filter) to be used as a filler cushion layer. Uniformly stirring 40 parts of polypropylene polyhedral hollow spheres with the diameter of 36mm, 14 parts of polypropylene rosettes with the diameter of 53mm, 9 parts of volcanic filler with the particle diameter of 44mm and 23 parts of carbon filler by using a mechanical stirrer to obtain mixed filler, and filling the mixed filler into a box body of a biological filter to obtain the biological deodorization filler; wherein the mixed filler is placed above the filler mat.
The experiment was carried out using the bio-deodorant fillers prepared in the above examples 1 to 6 as an experimental group, and using the currently conventional bio-fillers (bark and volcanic rock in a ratio of 1: 4) as a comparative group. The experimental group and the comparative group are subjected to a life comparison test of the biological filler under the same working condition, the test period is 2 years, and the test results are shown in the following table 1.
High acid environment: the pH value is 1-2, and the relative humidity is 50-60%.
High alkaline environment: the pH value is 13-14, and the relative humidity is 50-60%.
High humidity environment: the pH value is about 7, and the relative humidity is 100-120%.
Highly acidic, highly humid environment: the pH value is 1-2, and the relative humidity is 100-120%.
Highly alkaline, highly humid environment: the pH value is 13-14, and the relative humidity is 100-120%.
Table 1
As can be seen from the above Table 1, the bio-deodorant fillers of examples 1 to 6 are tough in structure, strong in acid and alkali resistance, and large in specific surface area of the filler, and can improve the biochemical reaction efficiency. The biological deodorization filler can resist biological degradation, has high acid resistance, and cannot be changed in quality under the working conditions of acidity and high humidity, so that the phenomena of pulverization and hardening cannot occur.
In conclusion, the biological deodorization filler provided by the invention has the advantages that the specific surface area is increased through the polypropylene polyhedral hollow spheres, the polypropylene rosettes and the volcanic rock filler, so that the biological deodorization filler is more beneficial to the growth and the reproduction of biological flora under the acidic and high-humidity operation environment, a better deodorization effect is obtained, and the requirements of low corrosion resistance, good durability and long service life are met. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. The biological deodorization filler is characterized by comprising the following components in parts by weight: 40-70 parts of polypropylene polyhedral hollow spheres, 10-20 parts of polypropylene rosettes, 5-15 parts of volcanic rock filler and 15-25 parts of carbon filler.
2. A bio-odour-reducing filler according to claim 1, wherein: the biological deodorization filler comprises the following components in parts by weight: 10-20 parts of polypropylene polyhedral hollow sphere A, 30-50 parts of polypropylene polyhedral hollow sphere B, 10-20 parts of polypropylene rosette, 5-15 parts of volcanic rock filler and 15-25 parts of carbon filler;
the diameter of the polypropylene polyhedral hollow sphere A is 45-55 mm, the diameter of the polypropylene polyhedral hollow sphere B is 35-40 mm, and the diameter of the polypropylene rosette is 45-55 mm.
3. A bio-odour-reducing filler according to claim 2, wherein: the biological deodorization filler comprises the following components in parts by weight: 12-15 parts of polypropylene polyhedral hollow sphere A, 40-50 parts of polypropylene polyhedral hollow sphere B, 12-16 parts of polypropylene rosette, 8-12 parts of volcanic rock filler and 20-25 parts of carbon filler.
4. A bio-odour-reducing filler according to claim 2 or 3, wherein: the diameter of polypropylene polyhedral hollow sphere A is 50mm, the diameter of polypropylene polyhedral hollow sphere B is 38mm, and the diameter of polypropylene rosette is 51 mm.
5. A bio-odour-reducing filler according to any one of claims 1 to 3, wherein: the particle size of the volcanic filler is 40-50 mm.
6. A bio-odour-reducing filler according to any one of claims 5, wherein: the particle size of the volcanic rock filler is 45 mm.
7. A method of preparing a bioremediation filler according to any one of claims 2-6, comprising the steps of:
step one, uniformly mixing a polypropylene polyhedral hollow sphere B, a polypropylene rosette, volcanic rock filler and carbon filler according to a weight part ratio to obtain a mixed filler for later use;
and step two, flatly paving the polypropylene polyhedral hollow sphere A on a filler supporting piece, and filling the mixed filler obtained in the step one above the polypropylene polyhedral hollow sphere A to obtain the polypropylene polyhedral hollow sphere A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011307019.2A CN114515507A (en) | 2020-11-19 | 2020-11-19 | Biological deodorization filler and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011307019.2A CN114515507A (en) | 2020-11-19 | 2020-11-19 | Biological deodorization filler and preparation method thereof |
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| Publication Number | Publication Date |
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| CN114515507A true CN114515507A (en) | 2022-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011307019.2A Pending CN114515507A (en) | 2020-11-19 | 2020-11-19 | Biological deodorization filler and preparation method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4876288A (en) * | 1986-04-07 | 1989-10-24 | Herding Gmbh Entstaubungsanlagen | Carrier material for immobilization of microorganisms |
| CN201264939Y (en) * | 2008-06-27 | 2009-07-01 | 浙江大学 | Rigid-flexible composite type biological filler for biological trickling filtration deodorization apparatus |
| CN202740990U (en) * | 2012-07-16 | 2013-02-20 | 上海市政工程设计研究总院（集团）有限公司 | Deodorizing filler |
| CN103627086A (en) * | 2013-11-16 | 2014-03-12 | 贾会荣 | Filler and multi-faceted hollow sphere for liquid and gas treatment and preparation method of filler as well as liquid and gas treatment method |
| CN203790828U (en) * | 2013-11-04 | 2014-08-27 | 深圳职业技术学院 | Combined biological filler and deodorizing device thereof |
| CN205925430U (en) * | 2016-07-01 | 2017-02-08 | 广州紫科环保科技股份有限公司 | Little biological filter deodorizing device |
| CN109954400A (en) * | 2017-12-22 | 2019-07-02 | 万华化学集团股份有限公司 | A kind of biology trickle bed and toluene waste gas recovery and processing system, method |
| CN111530272A (en) * | 2020-05-19 | 2020-08-14 | 中建一局集团安装工程有限公司 | Biological deodorization filler and trickling filter tower for removing garbage leachate odor by using same |
-
2020
- 2020-11-19 CN CN202011307019.2A patent/CN114515507A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4876288A (en) * | 1986-04-07 | 1989-10-24 | Herding Gmbh Entstaubungsanlagen | Carrier material for immobilization of microorganisms |
| CN201264939Y (en) * | 2008-06-27 | 2009-07-01 | 浙江大学 | Rigid-flexible composite type biological filler for biological trickling filtration deodorization apparatus |
| CN202740990U (en) * | 2012-07-16 | 2013-02-20 | 上海市政工程设计研究总院（集团）有限公司 | Deodorizing filler |
| CN203790828U (en) * | 2013-11-04 | 2014-08-27 | 深圳职业技术学院 | Combined biological filler and deodorizing device thereof |
| CN103627086A (en) * | 2013-11-16 | 2014-03-12 | 贾会荣 | Filler and multi-faceted hollow sphere for liquid and gas treatment and preparation method of filler as well as liquid and gas treatment method |
| CN205925430U (en) * | 2016-07-01 | 2017-02-08 | 广州紫科环保科技股份有限公司 | Little biological filter deodorizing device |
| CN109954400A (en) * | 2017-12-22 | 2019-07-02 | 万华化学集团股份有限公司 | A kind of biology trickle bed and toluene waste gas recovery and processing system, method |
| CN111530272A (en) * | 2020-05-19 | 2020-08-14 | 中建一局集团安装工程有限公司 | Biological deodorization filler and trickling filter tower for removing garbage leachate odor by using same |
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