DE202008003542U1 - Chem.-biologically effective, autoregenerative filter material based on cellulose fibers for exhaust air and gas purification - Google Patents

Chem.-biologically effective, autoregenerative filter material based on cellulose fibers for exhaust air and gas purification Download PDF

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DE202008003542U1
DE202008003542U1 DE202008003542U DE202008003542U DE202008003542U1 DE 202008003542 U1 DE202008003542 U1 DE 202008003542U1 DE 202008003542 U DE202008003542 U DE 202008003542U DE 202008003542 U DE202008003542 U DE 202008003542U DE 202008003542 U1 DE202008003542 U1 DE 202008003542U1
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filter material
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    • 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
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/02—Loose filtering material, e.g. loose fibres
    • B01D39/04—Organic material, e.g. cellulose, cotton
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2055—Carbonaceous material
    • B01D39/2058—Carbonaceous material the material being particulate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
    • B01J20/0229—Compounds of Fe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28004—Sorbent size or size distribution, e.g. particle size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28016—Particle form
    • B01J20/28019—Spherical, ellipsoidal or cylindrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28028—Particles immobilised within fibres or filaments
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D9/00—Other inorganic fertilisers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1225—Fibre length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1233—Fibre diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
    • B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
    • B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
    • B01J2220/4831—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton having been subjected to further processing, e.g. paper, cellulose pulp
    • 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

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  • Chemical & Material Sciences (AREA)
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  • Analytical Chemistry (AREA)
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  • Inorganic Chemistry (AREA)
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  • Molecular Biology (AREA)
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  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Treating Waste Gases (AREA)

Abstract

Das chemisch-biologisch wirksame autoregenerative Filtermaterial ist dadurch gekennzeichnet, dass auf und zwischen Zellulosefasern chemische Partikel, insbesondere Eisenhydroxid- und Aktivkohlestäube flächig aufgetragen bzw. räumlich eingetragen werden.The is chemically-biologically effective autoregenerative filter material characterized in that on and between cellulose fibers chemical Particles, in particular Eisenhydroxid- and activated carbon dust applied flat or spatially be registered.

Figure 00000001
Figure 00000001

Description

In Produktionsprozessen und in der Abwasseraufbereitung kommt es immer wieder durch Ausgasungsprozesse zur Emission von Schad- und Geruchsstoffen in die Umwelt. Die Beseitigung derartiger Umweltbelastungen erfolgt heute überwiegend durch Biofilter bzw. biologische oder chemische Wäscher. Biofilter sind dabei die ökonomischste technische Lösung, wobei diese Filter aufgrund ihres biologischen Wirkungsprinzips und ihres bedingten Wirkungsgrades sehr hoher Filtermaterialvolumen bedürfen und insbesondere sehr empfindlich auf Temperatur-, Schad- und Geruchsstoffkonzentrationsschwankungen reagieren, wodurch s zu wesentlichen Wirkungsgradschwankungen kommen kann. Die Berechenbarkeit derartiger Anlagen ist demzufolge sehr eingeschränkt. Besonders große Schwankungen reduzieren den Abbaugrad eines Biofilters erheblich. Biologische und chemische Wäscher können auf Belastungsspitzen mittels der gezielten Dosierung von Chemikalien in die Waschflüssigkeit reagieren. Die Belastungsspitzen können somit abgepuffert werden. Durch die zusätzliche Zufuhr von Chemikalien ist der Einsatz von Wäschern im Vergleich zu Biofiltern mit hohen Betriebskosten verbunden, die zum Teil wirtschaftlich nicht vertretbar sind. Eine Anlagenkombination von Biofiltern und chemischen Wäschern verbessert zwar die Betriebsbedingungen und verringert die Betriebskosten, ist aber mit einem erhöhten apparativen Aufwand verbunden und somit mit höheren Investitionskosten.In Production processes and wastewater treatment always occur again through outgassing processes for the emission of pollutants and odors into the environment. The elimination of such environmental pollution takes place predominantly through today Biofilter or biological or chemical scrubber. Biofilters are included the most economical technical solution, these filters due to their biological principle of action and their conditional efficiency of very high volume of filter material need and in particular very sensitive to temperature, pollutant and odor concentration fluctuations react, causing s to significant fluctuations in efficiency can. The predictability of such systems is therefore very high limited. Especially big Fluctuations considerably reduce the degree of degradation of a biofilter. Biological and chemical scrubbers can on peak loads by the targeted dosage of chemicals in the washing liquid react. The load peaks can thus be buffered. By the additional Supply of chemicals is the use of scrubbers compared to biofilters associated with high operating costs, some of them economically are not justifiable. A plant combination of biofilters and chemical scrubbers improves operating conditions and reduces operating costs, but with an increased associated with equipment and thus with higher investment costs.

Die Erfindung basiert auf der Entwicklung eines chemisch-biologisch wirksamen Filtermaterials aus recyceltem Papier (wie Altpapier und Etiketten von Flaschen) gewonnener Zellulosefaser, in die chemische Zuschlagstoffe, wie Eisenhydroxidpulver oder Aktivkohlepulver als Additiv eingearbeitet werden (1: Schema Zellulosefasergeflecht mit chemischen Zuschlagstoff).The invention is based on the development of a chemico-biologically effective filter material made of recycled paper (such as waste paper and labels of bottles) of cellulose fiber, in which chemical additives, such as iron hydroxide powder or activated carbon powder are incorporated as an additive ( 1 : Scheme cellulose fiber braid with chemical additive).

Die Zellulose als inertes, biologisches Polymer aus Altpapier besitzt eine relativ hohe spezifische Oberfläche, Wasserrückhaltekapazität, mikrobiologisch verwertbare Spurenelemente und einen großen pH-Wertpuffer für Säuren (Ca-, Na- Verbindungen). Damit bietet das Filtermaterial aus Zellulose eine ideale Besiedlungsumgebung für schad- und geruchsstoffabbauende Mikroorganismen. Das Filtermaterial funktioniert in diesem Fall wie ein Biofilter als biologischer Absorber für biologisch abbaubare Schad- und Geruchsstoffe.The Cellulose as an inert, biological polymer from waste paper has a relatively high specific surface area, water retention capacity, microbiological usable trace elements and a large pH buffer for acids (Ca, Na compounds). Thus, the filter material made of cellulose provides an ideal colonization environment for damage and odoriferous microorganisms. The filter material works in this case as a biofilter as a biological absorber for biological degradable pollutants and odors.

Durch die Einarbeitung der chemischen Zuschlagstoffe in bzw. auf die Zellulosefasern des Filtermateriales können selektiv Abluftbestandteile chemisch-physikalisch im Filtermaterial gebunden werden. Zum Beispiel bindet aus der Abluft Eisenhydroxid chemisch Schwefelwasserstoff und Aktivkohle physikalisch flüchtige organische Kohlenwasserstoffe. Die chemisch-physikalisch gebundenen Abluftschadstoffe können anschließend durch die angesiedelte Mikrobiologie sukzessiv abgebaut werden, wodurch die Schadstoffbindungsfähigkeit des Zuschlagstoffes wiederhergestellt wird (AUTOREGENERATION des Filtermateriales) (2: Chemisch-biologischer Schwefelwasserstoffabbau im UGN®-Oxigarnulat, Autoregeneration des Eisenhydroxids). Durch die parallele chemische und biologische Abreinigung und chemische Spitzenfrachtpufferung der Abluftschadstoffe erreicht das Filtermaterial auf Zellulosebasis mit den chemischen Zuschlagstoffen deutlich höhere Abreinigungsleistungen als herkömmliche Biofiltermaterialien wie Rindenmulch, Holzhäcksel, Heidekraut oder Filtermaterialschüttungen aus Kunststoff.By incorporating the chemical additives into or onto the cellulose fibers of the filter material, exhaust air components can be bound chemically and physically in the filter material. For example, from the exhaust air iron hydroxide chemically binds hydrogen sulphide and activated carbon physically volatile organic hydrocarbons. The chemically-physically bound exhaust air pollutants can then be degraded successively by the established microbiology, whereby the pollutant binding ability of the aggregate is restored (AUTOREGENERATION of the filter material) ( 2 : Chemical-biological hydrogen sulfide decomposition in UGN ® -oxigarnulate, auto-regeneration of iron hydroxide). Due to the parallel chemical and biological cleaning and top chemical buffering of the exhaust air pollutants, the cellulose-based filter material with the chemical additives achieves significantly higher cleaning performance than conventional biofilter materials such as bark mulch, wood chaff, heather or filter material fillers made of plastic.

Aufgrund der Fixierung der chemisch-physikalisch wirksamen Zuschlagstoffe im Filtermaterial und deren Regeneration durch die im Filtermaterial ansässige Mikrobiologie ist ein Verbrauch und die dadurch bedingte kontinuierliche Zufuhr dieser Stoffe ähnlich der Chemikaliendosierung bei Wäschern nicht notwendig.by virtue of the fixation of the chemico-physically effective aggregates in the filter material and its regeneration by the microbiology resident in the filter material is a consumption and the resulting continuous supply similar to these substances the chemical dosing in scrubbers not necessary.

Über die Herstellung von Filtermaterialien mit unterschiedlichen Gehalten der chemischen Zuschlagstoffe in die Zellulose (Eisenhydroxidanteil im Filtermaterial von 10% bis 35%) kann die Abreinigungseffizienz eines bestimmten Abluftschadstoffes im Filtermaterial gezielt eingestellt werden.About the Production of filter materials with different contents of chemical additives into cellulose (fraction of iron hydroxide in the filter material from 10% to 35%) can the cleaning efficiency a specific exhaust air pollutant targeted in the filter material become.

Im Produktionsprozess wird das Gemisch aus Zellulose, chemischen Zuschlagstoff und Wasser zu Pellets gepresst und anschließend getrocknet. Der Pelletdurchmesser kann je nach Bedarf zwischen 6 bis 10 mm eingestellt werden, die Pelletlänge zwischen 5 bis 20 mm. Durch die Trocknung der Zellulosepellets auf einen Wassergehalt von unter 10% können diese langfristig als trockenes Schüttgut gelagert werden. Die Schüttgutdichte beträgt je nach Art und Anteil der chemischen Zuschlagstoffe 400 g/l bis 600 g/l (siehe Anhang, Sicherheitsdatenblatt: 9. PHYSIKALISCHE CHEMISCHE EIGENSCHAFTEN). Über eine Filterpackungshöhe von 1 m ergibt sich ein Druckverlust von 200 bis 600 Pa. Der für das mikrobielle Wachstum ideale Feuchtigkeitsgehalt des Filtergranulates beträgt 40% bis 60%. Dies entspricht einem Frischwasserbedarf von 30 l/d bezogen auf 1 m3 Filtermaterial bei 100 m3/h Abluft mit 18°C und 60% relativer Luftfeuchte.In the production process, the mixture of cellulose, chemical additive and water is pressed into pellets and then dried. The pellet diameter can be adjusted between 6 and 10 mm depending on requirements, the pellet length between 5 and 20 mm. By drying the cellulose pellets to a water content of less than 10%, they can be stored long-term as dry bulk material. Depending on the type and proportion of chemical additives, the bulk density is between 400 g / l and 600 g / l (see appendix, safety data sheet: 9. PHYSICAL CHEMICAL PROPERTIES). Over a filter pack height of 1 m results in a pressure loss of 200 to 600 Pa. The moisture content of the filter granules that is ideal for microbial growth is 40% to 60%. This corresponds to a fresh water requirement of 30 l / d based on 1 m 3 filter material at 100 m 3 / h exhaust air at 18 ° C and 60% relative humidity.

Zur langfristigen Verbesserung der Strukturstabilität der Filterpackung können dem Filtermaterial formstabile Schüttgüter wie Glasschaumkugeln (Handelsnamen „Poraver") beigemischt werden.to Long-term improvement of the structural stability of the filter pack can the Filter material dimensionally stable bulk materials such as Glass foam balls (trade name "Poraver") are added.

Der Vorteil der Erfindung besteht darin, dass die verfahrenstechnischen Schwachstellen einer reinen biologischen Filtration kompensiert werden und die Betriebskosten für Biofilter nicht steigen, sondern aufgrund der Effizienz des Materials, speziell deren optimalen Oberfläche und das enorme Wasserrückhaltevermögen, eher gesenkt werden können. Zusätzlich können die Filteranlagen wegen der deutlich höheren Abreinigungsleistung der UGN®-Zellulosegranulate im Vergleich zu herkömmlichen Biofiltermaterialien (Tabelle 1: Abbau von Schwefelwasserstoff in Biofiltermaterialien; Tabelle 2: Abbau von VOC in Biofiltermaterialien) vom Volumen wesentlich kleiner dimensioniert werden (Verkleinerung der Anlage um den Faktor 4 bis 10). Die homogene Korngröße und Schüttgutdichte des UGN®-Zellulosegranulates ermöglicht eine gleichmäßige Befeuchtung mit Frischwasser und Abluftdurchströmung der Filterpackung, wodurch eine deutlich höhere Prozessstabilität der Abluftreinigung erzielt wird.The advantage of the invention is that the procedural weaknesses of a rei can be compensated for biological filtration and the operating costs for biofilters not increase, but rather due to the efficiency of the material, especially their optimal surface and the enormous water retention, can be lowered rather. In addition, the filter systems, because of the significantly higher cleaning performance of the UGN ® -Zellulosegranulate compared to traditional biofilter (Table 1: Degradation of hydrogen sulfide in the biofilter; Table 2: Degradation of VOC in biofilter) are dimensioned on the volume substantially smaller (reduction of the plant by the Factor 4 to 10). The homogenous grain size and bulk density of the UGN ® cellulose granulate enables a uniform humidification with fresh water and exhaust air flow through the filter pack, which results in a significantly higher process stability of the exhaust air purification.

Das Zellulosegranulat selber sowie dessen Zuschlagstoffe Eisenhydroxid und Aktivkohle sind keine Gefahrstoffe und liegen ebenfalls nicht in den Konzentrationen vor, in denen sie als giftig und umweltschädlich bewertet werden (siehe Anhang, Sicherheitsdatenblatt: 12. ANGABEN ZUR ÖKOLOGIE). Eine Entsorgung des Granulates ist somit problemlos (siehe Anhang, Sicherheitsdatenblatt: 13. ANGABEN ZUR ENTSORGUNG). Das Granulat kann zum Beispiel über den Kompost oder Biomüll entsorgt, oder nach Aufbereitung als Düngemittel verwendet werde. Eine Verwertung als Schwefel-, Stickstoffdüngemittel ist besonders geeignet bei dem Einsatz des Filtergranulates zur Abreinigung von Schwefelwasserstoff, Mercaptanen, Ammoniak und Aminen. Generell richtet sich die Entsorgung des Filtergranulates nach der an Ihm absorbierten Schadstoffkomponente.The Cellulose granules themselves and its additives iron hydroxide and activated carbon are not hazardous substances and are not in the concentrations in which it is considered toxic and harmful to the environment (see annex, safety data sheet: 12. ECOLOGICAL INFORMATION). Disposal of the granulate is therefore problem-free (see Appendix, Safety Data Sheet: 13. DISPOSAL CONSIDERATIONS. The granules can for example about disposed of the compost or organic waste, or used as fertilizer after treatment will. A utilization as sulfur, nitrogen fertilizer is particularly suitable for the use of the filter granules for Purification of hydrogen sulphide, mercaptans, ammonia and amines. In general, the disposal of the filter granules depends on the absorbed on him pollutant component.

Claims (5)

Das chemisch-biologisch wirksame autoregenerative Filtermaterial ist dadurch gekennzeichnet, dass auf und zwischen Zellulosefasern chemische Partikel, insbesondere Eisenhydroxid- und Aktivkohlestäube flächig aufgetragen bzw. räumlich eingetragen werden.The chemically-biologically active autoregenerative filter material is characterized in that applied and / or spatially registered on and between cellulose fibers, chemical particles, in particular iron hydroxide and activated carbon dust. Das chemisch-biologisch wirksame autoregenerative Filtermaterial ist dadurch gekennzeichnet, dass die veredelten Zellulosefasern in definierten Mengen zu pelletartigen Körpern mit einem Durchmesser von 6 bis 10 mm und einer durchschnittlichen Länge von 5–20 mm verpresst sind.The chemically-biologically effective autoregenerative Filter material is characterized in that the refined cellulose fibers in defined amounts to pellet-like bodies with a diameter from 6 to 10 mm and an average length of 5-20 mm are pressed. Das chemisch-biologisch wirksame autoregenerative Filtermaterial ist dadurch gekennzeichnet, dass die pelletartigen Körper zu einem losen trockenen Schüttgut mit Langzeitstrukturstabilität geschüttet werden.The chemically-biologically effective autoregenerative Filter material is characterized in that the pellet-like body to a loose dry bulk with long-term structural stability poured become. Das chemisch-biologisch wirksame autoregenerative Filtermaterial ist dadurch gekennzeichnet, dass diese Schüttung als chemisch-biologisch wirksames Filtermaterial zur Abreinigung von Störkomponenten in Gasen genutzt wird.The chemically-biologically effective autoregenerative Filter material is characterized in that this bed as chemico-biologically effective filter material for cleaning off interfering components is used in gases. Das chemisch-biologische wirksame autoregenerative Filtermaterial ist dadurch gekennzeichnet, dass das so entstandene Schüttgut zur Optimierung der Durchströmungseigenschaften und Langzeitstrukturstabilität mit einem innerten druckfesten, kugelförmigen und hydrophoben Stützmaterial gemischt wird.The chemo-biologically effective autoregenerative Filter material is characterized in that the resulting bulk to optimize the flow characteristics and long-term structural stability with an internal pressure-resistant, spherical and hydrophobic support material is mixed.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010011787A1 (en) * 2010-03-17 2011-09-22 Ostthüringische Materialprüfgesellschaft Für Textil Und Kunststoffe Mbh Self-stable filter material
DE102014222703A1 (en) 2014-11-06 2016-05-12 bue Anlagentechnik GmbH Process and device for the desulfurization of biogas by means of functional substances and hydrogen sulfide degrading microorganisms in the biogas fermenter and biogas fermenter
DE102016122440A1 (en) 2016-11-22 2018-05-24 Camfil Apc Gmbh Multi-stage filter system and method for cleaning an air flow
WO2018229340A1 (en) * 2017-06-13 2018-12-20 Demeca Oy A biogas reactor
DE102021129783A1 (en) 2021-11-16 2023-05-17 Gesellschaft zur Förderung von Medizin-, Bio- und Umwelttechnologien e.V. Process for the production of sorption materials from fermentation residues in a biogas plant

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010011787A1 (en) * 2010-03-17 2011-09-22 Ostthüringische Materialprüfgesellschaft Für Textil Und Kunststoffe Mbh Self-stable filter material
WO2011113769A2 (en) 2010-03-17 2011-09-22 Ostthüringische Materialprüfgesellschaft Für Textil Und Kunststoffe Mbh Filter granulate
DE102014222703A1 (en) 2014-11-06 2016-05-12 bue Anlagentechnik GmbH Process and device for the desulfurization of biogas by means of functional substances and hydrogen sulfide degrading microorganisms in the biogas fermenter and biogas fermenter
DE102014222703B4 (en) 2014-11-06 2019-01-10 bue Anlagentechnik GmbH Method for desulfurization of biogas and biofermenter comprising a device for desulfurization of biogas
DE102016122440A1 (en) 2016-11-22 2018-05-24 Camfil Apc Gmbh Multi-stage filter system and method for cleaning an air flow
WO2018229340A1 (en) * 2017-06-13 2018-12-20 Demeca Oy A biogas reactor
DE102021129783A1 (en) 2021-11-16 2023-05-17 Gesellschaft zur Förderung von Medizin-, Bio- und Umwelttechnologien e.V. Process for the production of sorption materials from fermentation residues in a biogas plant

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