Effect of soil and a nonionic surfactant on BTE-oX and mtbe biodegradation kinetics
The biodegradation kinetics of BTE-oX and MTBE, mixed all together, in the presence of 905 mg/L VSS of BTEX-acclimated biomass was evaluated. Effects of soil and Tergitol NP-10 in aqueous samples on substrate biodegradation rates were also evaluated. Biodegradation kinetics was evaluated for 36 hour...
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| Veröffentlicht in: | Water science and technology 2005-01, Vol.52 (8), p.107-115 |
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| creator | ACUNA-ASKAR, K GRACIA-LOZANO, M. V VILLARREAL-CHIU, I. F MARMOLEJO, J. G GARZA-GONZALEZ, M. T CHAVEZ-GOMEZ, B |
| description | The biodegradation kinetics of BTE-oX and MTBE, mixed all together, in the presence of 905 mg/L VSS of BTEX-acclimated biomass was evaluated. Effects of soil and Tergitol NP-10 in aqueous samples on substrate biodegradation rates were also evaluated. Biodegradation kinetics was evaluated for 36 hours, every 6 hours. MTBE biodegradation followed a first-order one-phase kinetic model in all samples, whereas benzene, toluene and ethylbenzene biodegradation followed a first-order two-phase kinetic model in all samples. O-xylene biodegradation followed a first-order two-phase kinetic model in the presence of biomass only. Interestingly, o-xylene biodegradation was able to switch to a first-order one-phase kinetic model when either soil or soil and Tergitol NP-10 were added. The presence of soil in aqueous samples retarded benzene, toluene and ethylbenzene removal rates. O-xylene and MTBE removal rates were enhanced by soil. The addition of Tergitol NP-10 to aqueous samples containing soil had a positive effect on substrate removal rate in all samples. Substrate percent removals ranged 77-99.8% for benzene, toluene and ethylbenzene. O-xylene and MTBE percent removals ranged 50.1-65.3% and 9.9-43.0%, respectively. |
| doi_str_mv | 10.2166/wst.2005.0237 |
| format | Article |
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V ; VILLARREAL-CHIU, I. F ; MARMOLEJO, J. G ; GARZA-GONZALEZ, M. T ; CHAVEZ-GOMEZ, B</creator><creatorcontrib>ACUNA-ASKAR, K ; GRACIA-LOZANO, M. V ; VILLARREAL-CHIU, I. F ; MARMOLEJO, J. G ; GARZA-GONZALEZ, M. T ; CHAVEZ-GOMEZ, B</creatorcontrib><description>The biodegradation kinetics of BTE-oX and MTBE, mixed all together, in the presence of 905 mg/L VSS of BTEX-acclimated biomass was evaluated. Effects of soil and Tergitol NP-10 in aqueous samples on substrate biodegradation rates were also evaluated. Biodegradation kinetics was evaluated for 36 hours, every 6 hours. MTBE biodegradation followed a first-order one-phase kinetic model in all samples, whereas benzene, toluene and ethylbenzene biodegradation followed a first-order two-phase kinetic model in all samples. O-xylene biodegradation followed a first-order two-phase kinetic model in the presence of biomass only. Interestingly, o-xylene biodegradation was able to switch to a first-order one-phase kinetic model when either soil or soil and Tergitol NP-10 were added. The presence of soil in aqueous samples retarded benzene, toluene and ethylbenzene removal rates. O-xylene and MTBE removal rates were enhanced by soil. The addition of Tergitol NP-10 to aqueous samples containing soil had a positive effect on substrate removal rate in all samples. Substrate percent removals ranged 77-99.8% for benzene, toluene and ethylbenzene. O-xylene and MTBE percent removals ranged 50.1-65.3% and 9.9-43.0%, respectively.</description><identifier>ISSN: 0273-1223</identifier><identifier>ISBN: 184339555X</identifier><identifier>ISBN: 9781843395553</identifier><identifier>EISSN: 1996-9732</identifier><identifier>DOI: 10.2166/wst.2005.0237</identifier><identifier>PMID: 16312957</identifier><identifier>CODEN: WSTED4</identifier><language>eng</language><publisher>Oxford: Pergamon</publisher><subject>Air. Soil. Water. Waste. Feeding ; Applied sciences ; Benzene ; Benzene Derivatives - metabolism ; Biodegradation ; Biodegradation, Environmental ; Biological and medical sciences ; Biomass ; Environment. Living conditions ; Ethylbenzene ; Exact sciences and technology ; Hydrocarbons ; Kinetics ; Medical sciences ; Methyl Ethers - metabolism ; Models, Theoretical ; MTBE ; Pollution ; Poloxalene - metabolism ; Public health. Hygiene ; Public health. 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V</creatorcontrib><creatorcontrib>VILLARREAL-CHIU, I. F</creatorcontrib><creatorcontrib>MARMOLEJO, J. G</creatorcontrib><creatorcontrib>GARZA-GONZALEZ, M. T</creatorcontrib><creatorcontrib>CHAVEZ-GOMEZ, B</creatorcontrib><title>Effect of soil and a nonionic surfactant on BTE-oX and mtbe biodegradation kinetics</title><title>Water science and technology</title><addtitle>Water Sci Technol</addtitle><description>The biodegradation kinetics of BTE-oX and MTBE, mixed all together, in the presence of 905 mg/L VSS of BTEX-acclimated biomass was evaluated. Effects of soil and Tergitol NP-10 in aqueous samples on substrate biodegradation rates were also evaluated. Biodegradation kinetics was evaluated for 36 hours, every 6 hours. MTBE biodegradation followed a first-order one-phase kinetic model in all samples, whereas benzene, toluene and ethylbenzene biodegradation followed a first-order two-phase kinetic model in all samples. O-xylene biodegradation followed a first-order two-phase kinetic model in the presence of biomass only. Interestingly, o-xylene biodegradation was able to switch to a first-order one-phase kinetic model when either soil or soil and Tergitol NP-10 were added. The presence of soil in aqueous samples retarded benzene, toluene and ethylbenzene removal rates. O-xylene and MTBE removal rates were enhanced by soil. The addition of Tergitol NP-10 to aqueous samples containing soil had a positive effect on substrate removal rate in all samples. Substrate percent removals ranged 77-99.8% for benzene, toluene and ethylbenzene. O-xylene and MTBE percent removals ranged 50.1-65.3% and 9.9-43.0%, respectively.</description><subject>Air. Soil. Water. Waste. Feeding</subject><subject>Applied sciences</subject><subject>Benzene</subject><subject>Benzene Derivatives - metabolism</subject><subject>Biodegradation</subject><subject>Biodegradation, Environmental</subject><subject>Biological and medical sciences</subject><subject>Biomass</subject><subject>Environment. Living conditions</subject><subject>Ethylbenzene</subject><subject>Exact sciences and technology</subject><subject>Hydrocarbons</subject><subject>Kinetics</subject><subject>Medical sciences</subject><subject>Methyl Ethers - metabolism</subject><subject>Models, Theoretical</subject><subject>MTBE</subject><subject>Pollution</subject><subject>Poloxalene - metabolism</subject><subject>Public health. Hygiene</subject><subject>Public health. 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V</au><au>VILLARREAL-CHIU, I. F</au><au>MARMOLEJO, J. G</au><au>GARZA-GONZALEZ, M. T</au><au>CHAVEZ-GOMEZ, B</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of soil and a nonionic surfactant on BTE-oX and mtbe biodegradation kinetics</atitle><jtitle>Water science and technology</jtitle><addtitle>Water Sci Technol</addtitle><date>2005-01-01</date><risdate>2005</risdate><volume>52</volume><issue>8</issue><spage>107</spage><epage>115</epage><pages>107-115</pages><issn>0273-1223</issn><eissn>1996-9732</eissn><isbn>184339555X</isbn><isbn>9781843395553</isbn><coden>WSTED4</coden><abstract>The biodegradation kinetics of BTE-oX and MTBE, mixed all together, in the presence of 905 mg/L VSS of BTEX-acclimated biomass was evaluated. Effects of soil and Tergitol NP-10 in aqueous samples on substrate biodegradation rates were also evaluated. Biodegradation kinetics was evaluated for 36 hours, every 6 hours. MTBE biodegradation followed a first-order one-phase kinetic model in all samples, whereas benzene, toluene and ethylbenzene biodegradation followed a first-order two-phase kinetic model in all samples. O-xylene biodegradation followed a first-order two-phase kinetic model in the presence of biomass only. Interestingly, o-xylene biodegradation was able to switch to a first-order one-phase kinetic model when either soil or soil and Tergitol NP-10 were added. The presence of soil in aqueous samples retarded benzene, toluene and ethylbenzene removal rates. O-xylene and MTBE removal rates were enhanced by soil. The addition of Tergitol NP-10 to aqueous samples containing soil had a positive effect on substrate removal rate in all samples. Substrate percent removals ranged 77-99.8% for benzene, toluene and ethylbenzene. O-xylene and MTBE percent removals ranged 50.1-65.3% and 9.9-43.0%, respectively.</abstract><cop>Oxford</cop><pub>Pergamon</pub><pmid>16312957</pmid><doi>10.2166/wst.2005.0237</doi><tpages>9</tpages></addata></record> |
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| ispartof | Water science and technology, 2005-01, Vol.52 (8), p.107-115 |
| issn | 0273-1223 1996-9732 |
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| source | MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Air. Soil. Water. Waste. Feeding Applied sciences Benzene Benzene Derivatives - metabolism Biodegradation Biodegradation, Environmental Biological and medical sciences Biomass Environment. Living conditions Ethylbenzene Exact sciences and technology Hydrocarbons Kinetics Medical sciences Methyl Ethers - metabolism Models, Theoretical MTBE Pollution Poloxalene - metabolism Public health. Hygiene Public health. Hygiene-occupational medicine Removal Soil Soil - analysis Soil Microbiology Soil Pollutants - metabolism Soils Surface-Active Agents - metabolism Toluene Water treatment and pollution Xylene |
| title | Effect of soil and a nonionic surfactant on BTE-oX and mtbe biodegradation kinetics |
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