Performance of trickle bed biofilters under high toluene loading

Technical Report · Sat Jul 01 00:00:00 EDT 1995

OSTI ID:76304

Sorial, G A; Smith, F L; Pandit, A; Suidan, M T; Biswas, P

The performance of two pelletized media biofilters, highly loaded with toluene, was evaluated in this study. Both biofilters were operated at the same influent concentration of 250 ppmv toluene. Biofilter `A` was operated at 1 minute EBRT and biofilter `B` at 0.67 minute EBRT. The impact of backwash duration on performance was studied for both biofilters, primarily the stability of performance between backwashings. This biofilter behavior indicated that increasing the backwash period from 1 to 2 hours was effective in improving the performance stability of both biofilters. This improved performance stability is due to reduction of short circuiting within the media, caused by accumulating biomass.

• Research Organization: Cincinnati Univ., OH (United States). Dept. of Civil and Environmental Engineering
• OSTI ID: 76304
• Report Number(s): PB--95-217634/XAB; CNN: Contract EPA-CR-821029
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AROMATICS
BIODEGRADATION
FILTRATION
PERFORMANCE TESTING
SEPARATION PROCESSES
TOLUENE