Ecological assessment of waste air treatment systems in the case of biological waste treatment.
In this paper, the authors present a technique aimed at increasing the efficiency of biological waste air treatment. The objective is to modify the existing biological waste air treatment systems (i.e. biofilters) to reduce the emitted substances and their potential environmental impacts. The principle of the ionization system is described, along with the first experiences of applying those methods during the rotting process. The investigated system is evaluated by means of life cycle impact assessment, with a focus on odour. It is demonstrated which of the measured substances (i.e. VOC) can potentially contribute to the odorant concentration. Further, it is shown which odour-intensive substances can be reduced by deploying ionization. Finally, the authors respond to the fact that the cleaning efficiency of ionization strongly depends on the humidity of the treated waste gas stream.
Technische Universität Darmstadt, Institute WAR, Petersenstrasse 13, D-64287 Darmstadt, Germany. i.steinberg@iwar.tu-darmstadt.de
I
I
Steinberg
A
A
Bockreis
C
C
Rohde
J
J
Jager
D019149:Bioreactors; D005374:Filtration; D006813:Humidity; D007477:Ions; D008962:Models, Theoretical; D009812:Odorants / Q000517:prevention & control*; D014865:Waste Disposal, Fluid / Q000379:methods*
D007477:Ions