Groundwater treatment in a field pilot methanotrophic rotating biological contactor
- ABB Environmental Services, Inc., Wakefield, MA (United States)
A pilot-scale rotating biological contactor (RBC) was operated under field conditions for approximately 1 month to remove chlorinated and nonchlorinated organic compounds from groundwater. Methanotrophic conditions were successfully established and maintained in the RBC during the field program. Results of the pilot program indicated that low concentrations of cis-1,2-dichloroethene (cis-DCE) and vinyl chloride could be treated to below the maximum contaminant levels (MCLs) of 70 ad 2 {micro}g/L, respectively. Maximum removal rates for cis-DCE and vinyl chloride measured during the pilot study were 2.14 {micro}g cis-DCE/ft{sup 2} disc media-minute (952 {micro}g cis-DCE/mg volatile solids [VS]-day) and 0.3 {micro}g vinyl chloride/ft{sup 2}-minute (143 {micro}g vinyl chloride/mg VS-day), respectively. Chlorinated ethene removal efficiencies decreased after the first 2 weeks of operation. Low concentrations of toluene, ethylbenzene, and total xylenes (TEX) were effectively removed from groundwater throughout the course of the pilot study. The maximum observed TEX removal rate was 3.0 {micro}g TEX/ft{sup 2}-minute.
- OSTI ID:
- 479346
- Report Number(s):
- CONF-950483-; ISBN 1-57477-010-1; TRN: IM9725%%107
- 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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