Evaluation of Trickle Bed Air Biofilter Performance for BTEX RemovalSource: Journal of Environmental Engineering:;1997:;Volume ( 123 ):;issue: 006Author:George A. Sorial
,
Francis L. Smith
,
Makram T. Suidan
,
Amit Pandit
,
Pratim Biswas
,
Richard C. Brenner
DOI: 10.1061/(ASCE)0733-9372(1997)123:6(530)Publisher: American Society of Civil Engineers
Abstract: Biofiltration of a gaseous stream contaminated with benzene, toluene, ethylbenzene, and the three xylene (BTEX) compounds was evaluated in this study. Experimental investigations were conducted on a pilot-scale biofilter containing randomly packed 6-mm R-635 Celite pellets as biological attachment media. The main focus of the study was to expand biofiltration technology to treat high volatile organic compounds (VOC) concentrations while maintaining consistently high removal efficiencies. Operational parameters investigated were BTEX loading, empty bed residence time (EBRT), backwashing frequency and duration, recovery of biofilter removal efficiency after backwashing, development of removal rate constants, and nutrient-phosphorous (nutrient-P) limitation as a biomass control. Periodic backwashing of the biofilter with medium fluidization was necessary for removing excess biomass and attaining stable long-term high removal efficiencies. Removal efficiencies above 99% were achieved for all the BTEX components for loadings up to 1.8 kg chemical oxygen demand (COD)/m
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| contributor author | George A. Sorial | |
| contributor author | Francis L. Smith | |
| contributor author | Makram T. Suidan | |
| contributor author | Amit Pandit | |
| contributor author | Pratim Biswas | |
| contributor author | Richard C. Brenner | |
| date accessioned | 2017-05-08T21:20:51Z | |
| date available | 2017-05-08T21:20:51Z | |
| date copyright | June 1997 | |
| date issued | 1997 | |
| identifier other | %28asce%290733-9372%281997%29123%3A6%28530%29.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/47886 | |
| description abstract | Biofiltration of a gaseous stream contaminated with benzene, toluene, ethylbenzene, and the three xylene (BTEX) compounds was evaluated in this study. Experimental investigations were conducted on a pilot-scale biofilter containing randomly packed 6-mm R-635 Celite pellets as biological attachment media. The main focus of the study was to expand biofiltration technology to treat high volatile organic compounds (VOC) concentrations while maintaining consistently high removal efficiencies. Operational parameters investigated were BTEX loading, empty bed residence time (EBRT), backwashing frequency and duration, recovery of biofilter removal efficiency after backwashing, development of removal rate constants, and nutrient-phosphorous (nutrient-P) limitation as a biomass control. Periodic backwashing of the biofilter with medium fluidization was necessary for removing excess biomass and attaining stable long-term high removal efficiencies. Removal efficiencies above 99% were achieved for all the BTEX components for loadings up to 1.8 kg chemical oxygen demand (COD)/m | |
| publisher | American Society of Civil Engineers | |
| title | Evaluation of Trickle Bed Air Biofilter Performance for BTEX Removal | |
| type | Journal Paper | |
| journal volume | 123 | |
| journal issue | 6 | |
| journal title | Journal of Environmental Engineering | |
| identifier doi | 10.1061/(ASCE)0733-9372(1997)123:6(530) | |
| tree | Journal of Environmental Engineering:;1997:;Volume ( 123 ):;issue: 006 | |
| contenttype | Fulltext |