Titre du document / Document title

Biologische Abgasreinigung mit kontrolliertem Biomasseaustrag im periodisch rückgespülten Rieselbettreaktor = Biological waste gas cleaning with controlled biomass removal in a periodically backflushed biotricklingfilter

Auteur(s) / Author(s)

HEITS H. ⁽¹⁾ ; LAURENZIS A. ⁽¹⁾ ; WERNER U. ⁽¹⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ Lehrstuhl für Mechanische Verfahrenstechnik, Universität Dortmund, ALLEMAGNE

Résumé / Abstract

A new process for biological degradation of waste gas was developed in laboratory scale. Compared with conventional biotricklingfilters or biofilters the new process provides a substantial higher elimination capacity and it is possible to remove the biomass out of the reactor. The degradation rate of this system is higher than 300 g_Toluene/(m_R³ h). The elimination performance of the reactor is correlated with the Toluene load instead of the Toluene concentration. In order to minimize the mass transfer resistance, a timed sprinkler is used to moisten the microorganisms. When activated carbon is used as packed bed material, the adsorption of the contaminant takes place in the beginning only. The packed bed is cleaned by using a new backflushing technique when the pressure drop gets higher than 10 mbar to 20 mbar. For two years, it has been possible to prevent the clogging of the reactor by removing the biomass.

Revue / Journal Title

Gefahrstoffe Reinhaltung der Luft   ISSN 0949-8036 

Source / Source

1997, vol. 57, n^o4, pp. 153-158 (12 ref.)

Langue / Language

Allemand
Revue : Multilingue

Editeur / Publisher

Springer-VDI, Düsseldorf, ALLEMAGNE  (1996) (Revue)

Mots-clés anglais / English Keywords

Flue gas purification ; Biological purification ; Trickling filter ; Biodegradation ; Performance evaluation ; Toluene ;

Mots-clés français / French Keywords

Epuration effluent gazeux ; Epuration biologique ; Lit bactérien ; Dégradation biologique ; Evaluation performance ; Toluène ;

Mots-clés espagnols / Spanish Keywords

Depuración efluente gaseoso ; Depuración biológica ; Cama bacteriana ; Degradación biológica ; Evaluación prestación ; Tolueno ;

Localisation / Location

INIST-CNRS, Cote INIST : 7769, 35400006489687.0040