Evaluation of Trickle Bed Air Biofilter Performance for BTEX Removal
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 m...
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| Veröffentlicht in: | Journal of Environmental Engineering 1997-06, Vol.123 (6), p.530-537 |
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| container_title | Journal of Environmental Engineering |
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| creator | Sorial, George A Smith, Francis L Suidan, Makram T Pandit, Amit Biswas, Pratim Brenner, Richard C |
| description | 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) m3 d. Stable overall removal efficiencies of 88% were achieved for a BTEX loading of 6.2 kg COD m3 d and an EBRT of 0.67 min. Evaluations of pseudo-steady-state performance data, one day following backwashing, yielded first-order removal rate constants for all the BTEX components. Removal efficiencies above 99% at BTEX loading of 2.1 kg COD m3 d were attained for a period of 14 d without biofilter backwashing in the absence of nutrient-P. |
| doi_str_mv | 10.1061/(ASCE)0733-9372(1997)123:6(530) |
| format | Article |
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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) m3 d. Stable overall removal efficiencies of 88% were achieved for a BTEX loading of 6.2 kg COD m3 d and an EBRT of 0.67 min. Evaluations of pseudo-steady-state performance data, one day following backwashing, yielded first-order removal rate constants for all the BTEX components. Removal efficiencies above 99% at BTEX loading of 2.1 kg COD m3 d were attained for a period of 14 d without biofilter backwashing in the absence of nutrient-P.</description><identifier>ISSN: 0733-9372</identifier><identifier>EISSN: 1943-7870</identifier><identifier>DOI: 10.1061/(ASCE)0733-9372(1997)123:6(530)</identifier><identifier>CODEN: JOEEDU</identifier><language>eng</language><publisher>Reston, VA: American Society of Civil Engineers</publisher><subject>AIR POLLUTION ABATEMENT ; ALKYLATED AROMATICS ; Applied sciences ; Atmospheric pollution ; BENZENE ; BIODEGRADATION ; Biological and medical sciences ; Biological treatment of gaseous effluents ; BIOREACTORS ; Biotechnology ; ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION ; Environment and pollution ; ENVIRONMENTAL SCIENCES ; Exact sciences and technology ; FILTERS ; Fundamental and applied biological sciences. Psychology ; General processes of purification and dust removal ; Industrial applications and implications. 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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) m3 d. Stable overall removal efficiencies of 88% were achieved for a BTEX loading of 6.2 kg COD m3 d and an EBRT of 0.67 min. Evaluations of pseudo-steady-state performance data, one day following backwashing, yielded first-order removal rate constants for all the BTEX components. Removal efficiencies above 99% at BTEX loading of 2.1 kg COD m3 d were attained for a period of 14 d without biofilter backwashing in the absence of nutrient-P.</description><subject>AIR POLLUTION ABATEMENT</subject><subject>ALKYLATED AROMATICS</subject><subject>Applied sciences</subject><subject>Atmospheric pollution</subject><subject>BENZENE</subject><subject>BIODEGRADATION</subject><subject>Biological and medical sciences</subject><subject>Biological treatment of gaseous effluents</subject><subject>BIOREACTORS</subject><subject>Biotechnology</subject><subject>ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION</subject><subject>Environment and pollution</subject><subject>ENVIRONMENTAL SCIENCES</subject><subject>Exact sciences and technology</subject><subject>FILTERS</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General processes of purification and dust removal</subject><subject>Industrial applications and implications. Economical aspects</subject><subject>Pollution</subject><subject>POLLUTION CONTROL EQUIPMENT</subject><subject>Prevention and purification methods</subject><subject>TECHNICAL PAPERS</subject><issn>0733-9372</issn><issn>1943-7870</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><recordid>eNqFkV1rFDEUhoMouFb_QwTR3YvRfGfihbC7nValUNEt9C5k0xNMnZ3UZFbw35thai81EHIunpxzeB-E3lDylhJF3y3X37bdimjOG8M1W1Jj9Ioy_l4tJSerR2hBjeCNbjV5jBYP3FP0rJRbQqhQRi_QaffL9Uc3xjTgFPAuR_-jB7yBG7yOGW9iCrEfIeMvkEPKBzd4wLXAm113jb_CIdX_z9GT4PoCL-7fE3R11u22H5uLy_NP2_VF4yRnYyOcACmkY9oLxf2NYU62QgZKgqGC7QEMQNgb1jItBfOilQwkKN86sSdM8hP0cu6byhht8XEE_92nYQA_WkkMk6wyr2fmLqefRyijPcTioe_dAOlYLNOCkVb9H6SKcC2IqeCHGfQ5lZIh2LscDy7_tpTYSYW1kwo7RWyniO2kwlYVVtmqojZ4dT_JFe_6kGuIsTx0YZoI0U5zrmesUmBv0zEPNUz7-bLrTq9INcY4mY6qV84loX9X-PcGfwA-k59I</recordid><startdate>19970601</startdate><enddate>19970601</enddate><creator>Sorial, George A</creator><creator>Smith, Francis L</creator><creator>Suidan, Makram T</creator><creator>Pandit, Amit</creator><creator>Biswas, Pratim</creator><creator>Brenner, Richard C</creator><general>American Society of Civil Engineers</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TV</scope><scope>C1K</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><scope>OTOTI</scope></search><sort><creationdate>19970601</creationdate><title>Evaluation of Trickle Bed Air Biofilter Performance for BTEX Removal</title><author>Sorial, George A ; Smith, Francis L ; Suidan, Makram T ; Pandit, Amit ; Biswas, Pratim ; Brenner, Richard C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a532t-4a4e545a27c463cd92a5845f10f9142bee9eefb92827542c4852e5e6c8a4b0253</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><topic>AIR POLLUTION ABATEMENT</topic><topic>ALKYLATED AROMATICS</topic><topic>Applied sciences</topic><topic>Atmospheric pollution</topic><topic>BENZENE</topic><topic>BIODEGRADATION</topic><topic>Biological and medical sciences</topic><topic>Biological treatment of gaseous effluents</topic><topic>BIOREACTORS</topic><topic>Biotechnology</topic><topic>ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION</topic><topic>Environment and pollution</topic><topic>ENVIRONMENTAL SCIENCES</topic><topic>Exact sciences and technology</topic><topic>FILTERS</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>General processes of purification and dust removal</topic><topic>Industrial applications and implications. Economical aspects</topic><topic>Pollution</topic><topic>POLLUTION CONTROL EQUIPMENT</topic><topic>Prevention and purification methods</topic><topic>TECHNICAL PAPERS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sorial, George A</creatorcontrib><creatorcontrib>Smith, Francis L</creatorcontrib><creatorcontrib>Suidan, Makram T</creatorcontrib><creatorcontrib>Pandit, Amit</creatorcontrib><creatorcontrib>Biswas, Pratim</creatorcontrib><creatorcontrib>Brenner, Richard C</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Pollution Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>OSTI.GOV</collection><jtitle>Journal of Environmental Engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sorial, George A</au><au>Smith, Francis L</au><au>Suidan, Makram T</au><au>Pandit, Amit</au><au>Biswas, Pratim</au><au>Brenner, Richard C</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evaluation of Trickle Bed Air Biofilter Performance for BTEX Removal</atitle><jtitle>Journal of Environmental Engineering</jtitle><date>1997-06-01</date><risdate>1997</risdate><volume>123</volume><issue>6</issue><spage>530</spage><epage>537</epage><pages>530-537</pages><issn>0733-9372</issn><eissn>1943-7870</eissn><coden>JOEEDU</coden><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) m3 d. Stable overall removal efficiencies of 88% were achieved for a BTEX loading of 6.2 kg COD m3 d and an EBRT of 0.67 min. Evaluations of pseudo-steady-state performance data, one day following backwashing, yielded first-order removal rate constants for all the BTEX components. Removal efficiencies above 99% at BTEX loading of 2.1 kg COD m3 d were attained for a period of 14 d without biofilter backwashing in the absence of nutrient-P.</abstract><cop>Reston, VA</cop><pub>American Society of Civil Engineers</pub><doi>10.1061/(ASCE)0733-9372(1997)123:6(530)</doi><tpages>8</tpages></addata></record> |
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| ispartof | Journal of Environmental Engineering, 1997-06, Vol.123 (6), p.530-537 |
| issn | 0733-9372 1943-7870 |
| language | eng |
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| source | American Society of Civil Engineers:NESLI2:Journals:2014; EBSCOhost Business Source Complete |
| subjects | AIR POLLUTION ABATEMENT ALKYLATED AROMATICS Applied sciences Atmospheric pollution BENZENE BIODEGRADATION Biological and medical sciences Biological treatment of gaseous effluents BIOREACTORS Biotechnology ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION Environment and pollution ENVIRONMENTAL SCIENCES Exact sciences and technology FILTERS Fundamental and applied biological sciences. Psychology General processes of purification and dust removal Industrial applications and implications. Economical aspects Pollution POLLUTION CONTROL EQUIPMENT Prevention and purification methods TECHNICAL PAPERS |
| title | Evaluation of Trickle Bed Air Biofilter Performance for BTEX Removal |
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