WO1996025222A1 - Fillers for biological exhaust air purification, process for their preparation, their use and bioreactors containing them - Google Patents
Fillers for biological exhaust air purification, process for their preparation, their use and bioreactors containing them Download PDFInfo
- Publication number
- WO1996025222A1 WO1996025222A1 PCT/AT1996/000026 AT9600026W WO9625222A1 WO 1996025222 A1 WO1996025222 A1 WO 1996025222A1 AT 9600026 W AT9600026 W AT 9600026W WO 9625222 A1 WO9625222 A1 WO 9625222A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- compost
- pellets
- filling materials
- organic
- exhaust air
- Prior art date
Links
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
-
- 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
Definitions
- Biological exhaust air purification is a process for reducing the concentration of air pollutants through biodegradation.
- Microorganisms utilize the pollutants that are present in the process exhaust gases from various industries, e.g. from paint shops and printing plants, as a substrate for the construction of biomass and for their energy metabolism. This creates harmless compounds such as H2O and CO2 from dangerous substances. This is demonstrably a bioconversion of the atmospheric substances and not a bioaccumulation, which would correspond to a shift of the exhaust air problem to other environmentally relevant areas.
- Organic fillers make it unnecessary to add mineral salts, since these are usually contained in sufficient amounts for the microorganisms.
- the organic filter material thus serves not only as a carrier of the biofilm from a mostly sessile microflora from bacteria, but also as a moisture reservoir and source of nutrients. This reduces the need for control technology.
- the high water retention capacity of organic fillers favors microbial colonization.
- most of these biological filter materials have a very inhomogeneous structure, which also changes over time. Lumps are formed or the material becomes increasingly fine-grained due to repeated drying and moistening and thus causes high pressure losses. Another consequence is different dwell times in the filter, since there is a lot of marginality. This has a negative impact on the elimination performance.
- the aim of the invention is the development of filling materials on an organic basis for filling biological waste air purification systems which are intended to overcome the disadvantages of the previous materials while maintaining the advantages of biological filling materials.
- the organic material is said to be mechanically stable with a binder and against moisture insensitive pellets are solidified without losing the desired properties of serving as a moisture reservoir and source of nutrients for the microorganisms.
- the binder chosen should also be such that it can be easily biodegraded again at the end of the life cycle of the bioactive filling material.
- This object was achieved by adding a reactive binder from the class of the amino / phenoplasts and a suitable hardener to organic material such as e.g. Com ⁇ post and the compression while curing the binder to stable pellets.
- Packings produced in this way have all the advantages of the organic packing previously used. After an adaptation phase, they break down both good and poorly water-soluble organic air pollutants. Ethyl acetate and toluene were chosen as prototypes for such pollutants, and their biodegradation was measured in suitable plants.
- Stability Pelleting with the addition of amino / phenoplasts as a binder achieves long-term high mechanical stability of the pellets at the moisture content required for operational technical reasons in biological exhaust air purification systems. Profitability: Due to the increased stability of the pellets, the service life of the filling material increases, so that the fillings of biological exhaust air purification systems have to be exchanged less frequently. Lengthy start-up phases with a lower cleaning performance after complex emptying and refilling of the bioreactors are thus less common. Pressure loss: Fills with the new pellets have a lower pressure loss with air throughput than conventional filter materials and thus reduce the required fan energy consumption. Nutrient source: With compost as the main organic constituent, the pellets have sufficient nutrient salt availability for microorganisms, so that an additional nutrient salt dosage is not necessary.
- Material structure By changing the compost / aminoplast ratio and the pelleting parameters, a defined material structure can be achieved.
- Disposal Since the pellets only contain biodegradable compounds, the disposal can e.g. done through composting plants. Experience has shown that there is no accumulation of air pollutants in the filter media of biological exhaust air purification systems.
- Particularly suitable aminoplasts / phenoplasts are addition and condensation products of carbonyl compounds (especially aldehydes) with ureas, thioureas, melamine, urethanes and phenols.
- Compost structural material 30 30 100 Compost glue pellets 30 30 100
- Compost structural material 50 50 100 Compos glue pellets 50 50 100
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)
- Treating Waste Gases (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU46139/96A AU4613996A (en) | 1995-02-17 | 1996-02-16 | Fillers for biological exhaust air purification, process for their preparation, their use and bioreactors containing them |
EP96901638A EP0809530A1 (en) | 1995-02-17 | 1996-02-16 | Fillers for biological exhaust air purification, process for their preparation, their use and bioreactors containing them |
JP8524520A JPH11501862A (en) | 1995-02-17 | 1996-02-16 | Filler for biological exhaust purification, process for its preparation, its use and bioreactor containing it |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0029595A AT401891B (en) | 1995-02-17 | 1995-02-17 | FILLING MATERIALS FOR BIOLOGICAL EXHAUST AIR PURIFICATION |
ATA295/95 | 1995-02-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996025222A1 true WO1996025222A1 (en) | 1996-08-22 |
Family
ID=3486758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT1996/000026 WO1996025222A1 (en) | 1995-02-17 | 1996-02-16 | Fillers for biological exhaust air purification, process for their preparation, their use and bioreactors containing them |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0809530A1 (en) |
JP (1) | JPH11501862A (en) |
AT (1) | AT401891B (en) |
AU (1) | AU4613996A (en) |
CZ (1) | CZ257397A3 (en) |
WO (1) | WO1996025222A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112604492A (en) * | 2020-11-23 | 2021-04-06 | 连云港龙展环保科技有限公司 | Method for treating organic waste gas by adopting absorption-degradation sectional type biological reaction device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7185107B2 (en) * | 2015-03-17 | 2022-12-07 | 株式会社県南衛生工業 | Method for removing volatile organic components using fermentation product of organic waste |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0413638A1 (en) * | 1989-08-17 | 1991-02-20 | Enviromax | Preparation of peat beads which are applied to biofilters |
WO1993018800A1 (en) * | 1992-03-25 | 1993-09-30 | Bishop Dolloff F | Use of immobilized film reactor |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3244093A1 (en) * | 1982-11-29 | 1984-09-27 | Franz Xaver 6345 Eschenburg Kneer | Sorption material for a device for removing impurities from gases, and process for producing it |
DE4109732A1 (en) * | 1991-03-25 | 1992-10-01 | Henkel Kgaa | EXHAUST AIR PROCESS |
-
1995
- 1995-02-17 AT AT0029595A patent/AT401891B/en not_active IP Right Cessation
-
1996
- 1996-02-16 EP EP96901638A patent/EP0809530A1/en not_active Ceased
- 1996-02-16 CZ CZ972573A patent/CZ257397A3/en unknown
- 1996-02-16 JP JP8524520A patent/JPH11501862A/en active Pending
- 1996-02-16 AU AU46139/96A patent/AU4613996A/en not_active Abandoned
- 1996-02-16 WO PCT/AT1996/000026 patent/WO1996025222A1/en not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0413638A1 (en) * | 1989-08-17 | 1991-02-20 | Enviromax | Preparation of peat beads which are applied to biofilters |
WO1993018800A1 (en) * | 1992-03-25 | 1993-09-30 | Bishop Dolloff F | Use of immobilized film reactor |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112604492A (en) * | 2020-11-23 | 2021-04-06 | 连云港龙展环保科技有限公司 | Method for treating organic waste gas by adopting absorption-degradation sectional type biological reaction device |
Also Published As
Publication number | Publication date |
---|---|
CZ257397A3 (en) | 1998-02-18 |
EP0809530A1 (en) | 1997-12-03 |
JPH11501862A (en) | 1999-02-16 |
ATA29595A (en) | 1996-05-15 |
AT401891B (en) | 1996-12-27 |
AU4613996A (en) | 1996-09-04 |
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