EP0809530A1 - Charges pour la purification biologique d'air evacue, leur procede de preparation, et reacteurs biologiques les contenant - Google Patents

Charges pour la purification biologique d'air evacue, leur procede de preparation, et reacteurs biologiques les contenant

Info

Publication number
EP0809530A1
EP0809530A1 EP96901638A EP96901638A EP0809530A1 EP 0809530 A1 EP0809530 A1 EP 0809530A1 EP 96901638 A EP96901638 A EP 96901638A EP 96901638 A EP96901638 A EP 96901638A EP 0809530 A1 EP0809530 A1 EP 0809530A1
Authority
EP
European Patent Office
Prior art keywords
compost
pellets
filling materials
organic
exhaust air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP96901638A
Other languages
German (de)
English (en)
Inventor
Thomas Zich
Friedrich PRÖLL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Krems Chemie GmbH
Original Assignee
Krems Chemie GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Krems Chemie GmbH filed Critical Krems Chemie GmbH
Publication of EP0809530A1 publication Critical patent/EP0809530A1/fr
Ceased legal-status Critical Current

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

L'invention concerne des charges à base organique pour installations biologiques de purification d'air évacué, lesdites charges se caractérisant en ce qu'elles se présentent sous la forme de pastilles solidifiées avec un liant organique. Ces pastilles sont mécaniquement stables, entraînent une faible perte de pression dans le filtre biologique, peuvent être produites avec une structure de matière spécifique, et elles ne posent aucun problème d'approvisionnement.
EP96901638A 1995-02-17 1996-02-16 Charges pour la purification biologique d'air evacue, leur procede de preparation, et reacteurs biologiques les contenant Ceased EP0809530A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0029595A AT401891B (de) 1995-02-17 1995-02-17 Füllmaterialien für biologische abluftreinigung
AT295/95 1995-06-01
PCT/AT1996/000026 WO1996025222A1 (fr) 1995-02-17 1996-02-16 Charges pour la purification biologique d'air evacue, leur procede de preparation, et reacteurs biologiques les contenant

Publications (1)

Publication Number Publication Date
EP0809530A1 true EP0809530A1 (fr) 1997-12-03

Family

ID=3486758

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96901638A Ceased EP0809530A1 (fr) 1995-02-17 1996-02-16 Charges pour la purification biologique d'air evacue, leur procede de preparation, et reacteurs biologiques les contenant

Country Status (6)

Country Link
EP (1) EP0809530A1 (fr)
JP (1) JPH11501862A (fr)
AT (1) AT401891B (fr)
AU (1) AU4613996A (fr)
CZ (1) CZ257397A3 (fr)
WO (1) WO1996025222A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7185107B2 (ja) * 2015-03-17 2022-12-07 株式会社県南衛生工業 有機性排出物の発酵生産物を利用した揮発性有機成分の除去方法
CN112604492A (zh) * 2020-11-23 2021-04-06 连云港龙展环保科技有限公司 采用吸收-降解分段式生物反应装置处理有机废气的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3244093A1 (de) * 1982-11-29 1984-09-27 Franz Xaver 6345 Eschenburg Kneer Sorptionsmaterial fuer eine einrichtung zum abscheiden von verunreinigungen aus gasen und verfahren zu seiner herstellung
DE69014769T2 (de) * 1989-08-17 1995-07-13 Enviromax Verfahren zur Herstellung von Torfkugeln, welche in biologischen Filtern verwandt werden.
DE4109732A1 (de) * 1991-03-25 1992-10-01 Henkel Kgaa Verfahren zum reinigen von abluft
EP0632730B1 (fr) * 1992-03-25 2000-10-11 BISHOP, Dolloff F. Bioreacteur a films immobilises

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9625222A1 *

Also Published As

Publication number Publication date
WO1996025222A1 (fr) 1996-08-22
CZ257397A3 (cs) 1998-02-18
AU4613996A (en) 1996-09-04
ATA29595A (de) 1996-05-15
AT401891B (de) 1996-12-27
JPH11501862A (ja) 1999-02-16

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