White Paper: MultiPhase Biofilter - New Technology For Meeting The MACT standards For The Wood Products Industry

By Dr. Rakesh Govind

Biotreatment of contaminated air has been practiced for over 30 years, with varying degrees of success. Traditional approaches have used natural media, such as peat, compost, wood chips, or synthetic media to treat the gas phase contaminants. Major issues with these approachs have been: (1) inability to effectively handle particulate matter in the inlet gas; (2) treat gases at temperatures above 104oF or 40oC, which is outside the typical temperature range of aerobic bacteria; (3) treat both water soluble and water insoluble compounds, since water soluble compounds create water pollution issues; and (4) handle biomass growth, especially when treating volatile organic compounds (VOCs). In this paper, a novel MultiPhase Biosystem is proposed and pilot-scale test results are given to overcome all of the above issues. Application of this new technology for meeting the MACT standards for the wood products industry has also been presented.

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