ABSTRACT

Hollow fiber membrane bioreactors (HFMBs) are a promising technology for the treatment of biodegradable gas-phase pollutants. It has been shown to be effective for aerobic degradation of a range of compounds including ammonia, benzene, butanol, dichloromethane, propene, trichloroethylene (TCE) and toluene. Advantages of HFMBs include high mass transfer rates, low pressure drops, and small reactor volume requirements. In addition, the ability to separate the microbial population from the gases being treated allows for independent optimization of each phase of the system. In the opinion of this author, the most promising areas of air pollution research for HFMBs include