Review: Waste gas biotreatment technology

TLDR

The paper reviews fundamental theory and application examples of biological waste gas treatment technologies. The review describes the three main technologies—biofiltration, bioscrubbing, and trickling biofiltration—examining their technical, economic aspects, models, carrier materials, inocula, operational parameters, and emerging laboratory‑scale designs. The review summarizes literature findings on removal efficiencies for aliphatic, aromatic, and mixed contaminants. © 1998 SCI.

Abstract

This paper presents fundamental and theoretical aspects of biological waste gas treatment technologies as well as examples of applications to different compounds. The three most widely used technologies are described, namely biofiltration, bioscrubbing and trickling biofiltration, focusing more extensively on biofiltration which is the most studied and most extensively used process. A description of the different technologies from technological and economic points of view, including an analysis of models used in waste gas biotreatment is given. Results presented in the literature concerning the removal of aliphatic, aromatic and mixtures of contaminants are reviewed. Carrier materials, inocula selected and alternatives proposed for regulating moisture content, pH values or for controlling pressure drop are considered. New technologies and reactor design studied at laboratory-scale are mentioned. © 1998 SCI