Verfahren und Vorrichtung zur Separation von in Gasen enthaltenen Schadstoffen

Die Erfindung betrifft ein Verfahren zur Separation von in Gasen enthaltenen Schadstoffen durch enzymatische Umsetzung mittels Mikroorganismen, die einseitig als Biofilm auf einer Oberflaeche eines Traegers aufgewachsen sind und mit Wasser und/oder einer waessrigen Mineralsalzloesung berieselt werden, bei dem der Gasstrom nachfolgend an beiden Seiten des Traegers, der zumindest teilweise aus permeablem und/oder semi-permeablem Material besteht, vorbeigefuehrt wird.

DE 19729814 C UPAB: 19981203 In a process to remove impurities from a flow of gas, the gases flow pasta surface bearing a colony of micro-organisms growing as a film (11) on a membrane substrate surface (10) which is maintained in a moist condition by a spray or flow of water or fluid containing an aqueous solution of salts. The novelty is that: (a) the flow of gas passes simultaneously over both sides (front and rear) of the same substrate membrane (10); (b) the substrate is a semi-permeable membrane in whole or in part; (c) depending upon the gas impurities, the gas passes first over that part of the surface with no colony of micro-organisms, or with a colony of micro-organisms;(d) the gas pressure is regulated according to the nature of the impurities and their concentration; (e) the substrate material, the gas, and/or the fluid which moistens the substrate surface are heated; (f) the substrate material (11) is exposed to a continuous or semi-continuous supply of a wetting agent; (g) the membrane (10) is selective with respect to given substances; (h) also claimed is a suitable assembly. USE- Process and assembly to remove impurities from gas esp. effluent process air. ADVANTAGE - The process removes both hydrophobic and hydrophilic substances from a flow of gas by biological action.