Biofiltration of toluene vapors in a carbon-medium biofilter
- RMT Inc., Waukesha, WI (United States)
- Univ. of Southern California, Los Angeles, CA (United States). Environmental Engineering Program
- Westates Carbon, Los Angeles, CA (United States)
Treatment of toluene vapors in a biofilter with a packed bed of activated carbon pellets was tested. The flowrate was 0.14 m{sup 3}/min, the volume of the bed was 0.25 m{sup 3}, and the bed depth was 1 m. The reactor was capable of removing 70% of the toluene at an input concentration of 2,700 {micro}g/L with an empty bed detection time of 1.8 min. Total removal was 64 g/m{sup 3}/h. Organic carbon removed from the air in a biofilter may be oxidized or incorporated into the biomass. Measurements of heat production and carbon dioxide production indicated, respectively, that 29% or 38% of the removed toluene was oxidized, while the remainder, 62% to 71%, was incorporated into biomass by cell synthesis. The rapid growth of the biomass indicates clogging may occur in biofilters operated at these rates.
- OSTI ID:
- 479365
- Report Number(s):
- CONF-950483-; ISBN 1-57477-010-1; TRN: IM9725%%126
- Resource Relation:
- Conference: 3. international in situ and on-site bioreclamation symposium, San Diego, CA (United States), 24-27 Apr 1995; Other Information: PBD: 1995; Related Information: Is Part Of Biological unit processes for hazardous waste treatment; Hinchee, R.E.; Skeen, R.S. [eds.] [Battelle Memorial Inst., Columbus, OH (United States)]; Sayles, G.D. [ed.]; PB: 358 p.; Bioremediation, Volume 3(9)
- Country of Publication:
- United States
- Language:
- English
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