The effect of the potential fuel additive isobutanol on benzene, toluene, ethylbenzene, and p-xylene degradation in aerobic soil microcosms
Isobutanol is being considered as a fuel additive; however, the effect of this chemical on gasoline degradation (following a spill) has yet to be fully explored. To address this, the current study investigated the effect of isobutanol on benzene, toluene, ethylbenzene and p-xylene (BTEX) degradation...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Ding, Liang [verfasserIn] |
|---|
| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2015 |
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| Rechteinformationen: |
Nutzungsrecht: © 2014 Taylor & Francis 2014 |
|---|
| Übergeordnetes Werk: |
Enthalten in: Environmental technology - London : Selper Ltd, 1990, 36(2015), 2, Seite 237 |
|---|---|
| Übergeordnetes Werk: |
volume:36 ; year:2015 ; number:2 ; pages:237 |
| Links: |
|---|
| DOI / URN: |
10.1080/09593330.2014.943298 |
|---|
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| 520 | |a Isobutanol is being considered as a fuel additive; however, the effect of this chemical on gasoline degradation (following a spill) has yet to be fully explored. To address this, the current study investigated the effect of isobutanol on benzene, toluene, ethylbenzene and p-xylene (BTEX) degradation in 14 sets of experiments in saturated soils. This involved four hydrocarbons for three soils (12 experiments) and two extra experiments with a lower level of isobutanol (for toluene only). Each soil and hydrocarbon combination involved four abiotic control microcosms and 12 sample microcosms (six with and six without isobutanol). The time for complete degradation of each hydrocarbon varied between treatments. Both toluene and ethylbenzene were rapidly degraded (5-13 days for toluene and 3-13 days for ethylbenzene). In contrast, the time for complete degradation for benzene ranged from 5 to 47 days. The hydrocarbon p-xylene was the most recalcitrant chemical (time for removal ranged from 14 to 86 days) and, in several microcosms, no p-xylene degradation was observed. The effect of isobutanol on hydrocarbon degradation was determined by comparing degradation lag times with and without isobutanol addition. From the 14 treatments, isobutanol only affected degradation lag times in three cases. In two cases (benzene and p-xylene), an enhancement of degradation (reduced lag times) was observed in the presence of isobutanol. In contrast, toluene degradation in one soil was inhibited (increased lag time). These results indicate that co-contamination with isobutanol should not inhibit aerobic BTEX degradation rates. | ||
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10.1080/09593330.2014.943298 doi PQ20160617 (DE-627)OLC1968352007 (DE-599)GBVOLC1968352007 (PRQ)i2461-a938df07a35687e4bbf91efc2f2609c915762fe66c95994ebe71fc5e857c6c140 (KEY)0100508120150000036000200237effectofthepotentialfueladditiveisobutanolonbenzen DE-627 ger DE-627 rakwb eng 333.7 690 DNB 58.50 bkl Ding, Liang verfasserin aut The effect of the potential fuel additive isobutanol on benzene, toluene, ethylbenzene, and p-xylene degradation in aerobic soil microcosms 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Isobutanol is being considered as a fuel additive; however, the effect of this chemical on gasoline degradation (following a spill) has yet to be fully explored. To address this, the current study investigated the effect of isobutanol on benzene, toluene, ethylbenzene and p-xylene (BTEX) degradation in 14 sets of experiments in saturated soils. This involved four hydrocarbons for three soils (12 experiments) and two extra experiments with a lower level of isobutanol (for toluene only). Each soil and hydrocarbon combination involved four abiotic control microcosms and 12 sample microcosms (six with and six without isobutanol). The time for complete degradation of each hydrocarbon varied between treatments. Both toluene and ethylbenzene were rapidly degraded (5-13 days for toluene and 3-13 days for ethylbenzene). In contrast, the time for complete degradation for benzene ranged from 5 to 47 days. The hydrocarbon p-xylene was the most recalcitrant chemical (time for removal ranged from 14 to 86 days) and, in several microcosms, no p-xylene degradation was observed. The effect of isobutanol on hydrocarbon degradation was determined by comparing degradation lag times with and without isobutanol addition. From the 14 treatments, isobutanol only affected degradation lag times in three cases. In two cases (benzene and p-xylene), an enhancement of degradation (reduced lag times) was observed in the presence of isobutanol. In contrast, toluene degradation in one soil was inhibited (increased lag time). These results indicate that co-contamination with isobutanol should not inhibit aerobic BTEX degradation rates. Nutzungsrecht: © 2014 Taylor & Francis 2014 biodegradation benzene BTEX toluene isobutanol Toluene - isolation & purification Volatile Organic Compounds - isolation & purification Volatile Organic Compounds - chemistry Xylenes - isolation & purification Xylenes - chemistry Benzene Derivatives - chemistry Toluene - chemistry Benzene Derivatives - isolation & purification Butanols - isolation & purification Soil Pollutants - chemistry Bacteria, Aerobic - metabolism Butanols - chemistry Benzene - chemistry Benzene - isolation & purification Soil Pollutants - isolation & purification Experiments Biodegradation Cupples, Alison M oth Enthalten in Environmental technology London : Selper Ltd, 1990 36(2015), 2, Seite 237 (DE-627)130886505 (DE-600)1039399-7 (DE-576)041591313 0959-3330 nnns volume:36 year:2015 number:2 pages:237 http://dx.doi.org/10.1080/09593330.2014.943298 Volltext http://www.tandfonline.com/doi/abs/10.1080/09593330.2014.943298 http://www.ncbi.nlm.nih.gov/pubmed/25413118 http://search.proquest.com/docview/1627111782 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-IBL GBV_ILN_21 GBV_ILN_23 GBV_ILN_70 58.50 AVZ AR 36 2015 2 237 |
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10.1080/09593330.2014.943298 doi PQ20160617 (DE-627)OLC1968352007 (DE-599)GBVOLC1968352007 (PRQ)i2461-a938df07a35687e4bbf91efc2f2609c915762fe66c95994ebe71fc5e857c6c140 (KEY)0100508120150000036000200237effectofthepotentialfueladditiveisobutanolonbenzen DE-627 ger DE-627 rakwb eng 333.7 690 DNB 58.50 bkl Ding, Liang verfasserin aut The effect of the potential fuel additive isobutanol on benzene, toluene, ethylbenzene, and p-xylene degradation in aerobic soil microcosms 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Isobutanol is being considered as a fuel additive; however, the effect of this chemical on gasoline degradation (following a spill) has yet to be fully explored. To address this, the current study investigated the effect of isobutanol on benzene, toluene, ethylbenzene and p-xylene (BTEX) degradation in 14 sets of experiments in saturated soils. This involved four hydrocarbons for three soils (12 experiments) and two extra experiments with a lower level of isobutanol (for toluene only). Each soil and hydrocarbon combination involved four abiotic control microcosms and 12 sample microcosms (six with and six without isobutanol). The time for complete degradation of each hydrocarbon varied between treatments. Both toluene and ethylbenzene were rapidly degraded (5-13 days for toluene and 3-13 days for ethylbenzene). In contrast, the time for complete degradation for benzene ranged from 5 to 47 days. The hydrocarbon p-xylene was the most recalcitrant chemical (time for removal ranged from 14 to 86 days) and, in several microcosms, no p-xylene degradation was observed. The effect of isobutanol on hydrocarbon degradation was determined by comparing degradation lag times with and without isobutanol addition. From the 14 treatments, isobutanol only affected degradation lag times in three cases. In two cases (benzene and p-xylene), an enhancement of degradation (reduced lag times) was observed in the presence of isobutanol. In contrast, toluene degradation in one soil was inhibited (increased lag time). These results indicate that co-contamination with isobutanol should not inhibit aerobic BTEX degradation rates. Nutzungsrecht: © 2014 Taylor & Francis 2014 biodegradation benzene BTEX toluene isobutanol Toluene - isolation & purification Volatile Organic Compounds - isolation & purification Volatile Organic Compounds - chemistry Xylenes - isolation & purification Xylenes - chemistry Benzene Derivatives - chemistry Toluene - chemistry Benzene Derivatives - isolation & purification Butanols - isolation & purification Soil Pollutants - chemistry Bacteria, Aerobic - metabolism Butanols - chemistry Benzene - chemistry Benzene - isolation & purification Soil Pollutants - isolation & purification Experiments Biodegradation Cupples, Alison M oth Enthalten in Environmental technology London : Selper Ltd, 1990 36(2015), 2, Seite 237 (DE-627)130886505 (DE-600)1039399-7 (DE-576)041591313 0959-3330 nnns volume:36 year:2015 number:2 pages:237 http://dx.doi.org/10.1080/09593330.2014.943298 Volltext http://www.tandfonline.com/doi/abs/10.1080/09593330.2014.943298 http://www.ncbi.nlm.nih.gov/pubmed/25413118 http://search.proquest.com/docview/1627111782 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-IBL GBV_ILN_21 GBV_ILN_23 GBV_ILN_70 58.50 AVZ AR 36 2015 2 237 |
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10.1080/09593330.2014.943298 doi PQ20160617 (DE-627)OLC1968352007 (DE-599)GBVOLC1968352007 (PRQ)i2461-a938df07a35687e4bbf91efc2f2609c915762fe66c95994ebe71fc5e857c6c140 (KEY)0100508120150000036000200237effectofthepotentialfueladditiveisobutanolonbenzen DE-627 ger DE-627 rakwb eng 333.7 690 DNB 58.50 bkl Ding, Liang verfasserin aut The effect of the potential fuel additive isobutanol on benzene, toluene, ethylbenzene, and p-xylene degradation in aerobic soil microcosms 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Isobutanol is being considered as a fuel additive; however, the effect of this chemical on gasoline degradation (following a spill) has yet to be fully explored. To address this, the current study investigated the effect of isobutanol on benzene, toluene, ethylbenzene and p-xylene (BTEX) degradation in 14 sets of experiments in saturated soils. This involved four hydrocarbons for three soils (12 experiments) and two extra experiments with a lower level of isobutanol (for toluene only). Each soil and hydrocarbon combination involved four abiotic control microcosms and 12 sample microcosms (six with and six without isobutanol). The time for complete degradation of each hydrocarbon varied between treatments. Both toluene and ethylbenzene were rapidly degraded (5-13 days for toluene and 3-13 days for ethylbenzene). In contrast, the time for complete degradation for benzene ranged from 5 to 47 days. The hydrocarbon p-xylene was the most recalcitrant chemical (time for removal ranged from 14 to 86 days) and, in several microcosms, no p-xylene degradation was observed. The effect of isobutanol on hydrocarbon degradation was determined by comparing degradation lag times with and without isobutanol addition. From the 14 treatments, isobutanol only affected degradation lag times in three cases. In two cases (benzene and p-xylene), an enhancement of degradation (reduced lag times) was observed in the presence of isobutanol. In contrast, toluene degradation in one soil was inhibited (increased lag time). These results indicate that co-contamination with isobutanol should not inhibit aerobic BTEX degradation rates. Nutzungsrecht: © 2014 Taylor & Francis 2014 biodegradation benzene BTEX toluene isobutanol Toluene - isolation & purification Volatile Organic Compounds - isolation & purification Volatile Organic Compounds - chemistry Xylenes - isolation & purification Xylenes - chemistry Benzene Derivatives - chemistry Toluene - chemistry Benzene Derivatives - isolation & purification Butanols - isolation & purification Soil Pollutants - chemistry Bacteria, Aerobic - metabolism Butanols - chemistry Benzene - chemistry Benzene - isolation & purification Soil Pollutants - isolation & purification Experiments Biodegradation Cupples, Alison M oth Enthalten in Environmental technology London : Selper Ltd, 1990 36(2015), 2, Seite 237 (DE-627)130886505 (DE-600)1039399-7 (DE-576)041591313 0959-3330 nnns volume:36 year:2015 number:2 pages:237 http://dx.doi.org/10.1080/09593330.2014.943298 Volltext http://www.tandfonline.com/doi/abs/10.1080/09593330.2014.943298 http://www.ncbi.nlm.nih.gov/pubmed/25413118 http://search.proquest.com/docview/1627111782 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-IBL GBV_ILN_21 GBV_ILN_23 GBV_ILN_70 58.50 AVZ AR 36 2015 2 237 |
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10.1080/09593330.2014.943298 doi PQ20160617 (DE-627)OLC1968352007 (DE-599)GBVOLC1968352007 (PRQ)i2461-a938df07a35687e4bbf91efc2f2609c915762fe66c95994ebe71fc5e857c6c140 (KEY)0100508120150000036000200237effectofthepotentialfueladditiveisobutanolonbenzen DE-627 ger DE-627 rakwb eng 333.7 690 DNB 58.50 bkl Ding, Liang verfasserin aut The effect of the potential fuel additive isobutanol on benzene, toluene, ethylbenzene, and p-xylene degradation in aerobic soil microcosms 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Isobutanol is being considered as a fuel additive; however, the effect of this chemical on gasoline degradation (following a spill) has yet to be fully explored. To address this, the current study investigated the effect of isobutanol on benzene, toluene, ethylbenzene and p-xylene (BTEX) degradation in 14 sets of experiments in saturated soils. This involved four hydrocarbons for three soils (12 experiments) and two extra experiments with a lower level of isobutanol (for toluene only). Each soil and hydrocarbon combination involved four abiotic control microcosms and 12 sample microcosms (six with and six without isobutanol). The time for complete degradation of each hydrocarbon varied between treatments. Both toluene and ethylbenzene were rapidly degraded (5-13 days for toluene and 3-13 days for ethylbenzene). In contrast, the time for complete degradation for benzene ranged from 5 to 47 days. The hydrocarbon p-xylene was the most recalcitrant chemical (time for removal ranged from 14 to 86 days) and, in several microcosms, no p-xylene degradation was observed. The effect of isobutanol on hydrocarbon degradation was determined by comparing degradation lag times with and without isobutanol addition. From the 14 treatments, isobutanol only affected degradation lag times in three cases. In two cases (benzene and p-xylene), an enhancement of degradation (reduced lag times) was observed in the presence of isobutanol. In contrast, toluene degradation in one soil was inhibited (increased lag time). These results indicate that co-contamination with isobutanol should not inhibit aerobic BTEX degradation rates. Nutzungsrecht: © 2014 Taylor & Francis 2014 biodegradation benzene BTEX toluene isobutanol Toluene - isolation & purification Volatile Organic Compounds - isolation & purification Volatile Organic Compounds - chemistry Xylenes - isolation & purification Xylenes - chemistry Benzene Derivatives - chemistry Toluene - chemistry Benzene Derivatives - isolation & purification Butanols - isolation & purification Soil Pollutants - chemistry Bacteria, Aerobic - metabolism Butanols - chemistry Benzene - chemistry Benzene - isolation & purification Soil Pollutants - isolation & purification Experiments Biodegradation Cupples, Alison M oth Enthalten in Environmental technology London : Selper Ltd, 1990 36(2015), 2, Seite 237 (DE-627)130886505 (DE-600)1039399-7 (DE-576)041591313 0959-3330 nnns volume:36 year:2015 number:2 pages:237 http://dx.doi.org/10.1080/09593330.2014.943298 Volltext http://www.tandfonline.com/doi/abs/10.1080/09593330.2014.943298 http://www.ncbi.nlm.nih.gov/pubmed/25413118 http://search.proquest.com/docview/1627111782 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-IBL GBV_ILN_21 GBV_ILN_23 GBV_ILN_70 58.50 AVZ AR 36 2015 2 237 |
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10.1080/09593330.2014.943298 doi PQ20160617 (DE-627)OLC1968352007 (DE-599)GBVOLC1968352007 (PRQ)i2461-a938df07a35687e4bbf91efc2f2609c915762fe66c95994ebe71fc5e857c6c140 (KEY)0100508120150000036000200237effectofthepotentialfueladditiveisobutanolonbenzen DE-627 ger DE-627 rakwb eng 333.7 690 DNB 58.50 bkl Ding, Liang verfasserin aut The effect of the potential fuel additive isobutanol on benzene, toluene, ethylbenzene, and p-xylene degradation in aerobic soil microcosms 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Isobutanol is being considered as a fuel additive; however, the effect of this chemical on gasoline degradation (following a spill) has yet to be fully explored. To address this, the current study investigated the effect of isobutanol on benzene, toluene, ethylbenzene and p-xylene (BTEX) degradation in 14 sets of experiments in saturated soils. This involved four hydrocarbons for three soils (12 experiments) and two extra experiments with a lower level of isobutanol (for toluene only). Each soil and hydrocarbon combination involved four abiotic control microcosms and 12 sample microcosms (six with and six without isobutanol). The time for complete degradation of each hydrocarbon varied between treatments. Both toluene and ethylbenzene were rapidly degraded (5-13 days for toluene and 3-13 days for ethylbenzene). In contrast, the time for complete degradation for benzene ranged from 5 to 47 days. The hydrocarbon p-xylene was the most recalcitrant chemical (time for removal ranged from 14 to 86 days) and, in several microcosms, no p-xylene degradation was observed. The effect of isobutanol on hydrocarbon degradation was determined by comparing degradation lag times with and without isobutanol addition. From the 14 treatments, isobutanol only affected degradation lag times in three cases. In two cases (benzene and p-xylene), an enhancement of degradation (reduced lag times) was observed in the presence of isobutanol. In contrast, toluene degradation in one soil was inhibited (increased lag time). These results indicate that co-contamination with isobutanol should not inhibit aerobic BTEX degradation rates. Nutzungsrecht: © 2014 Taylor & Francis 2014 biodegradation benzene BTEX toluene isobutanol Toluene - isolation & purification Volatile Organic Compounds - isolation & purification Volatile Organic Compounds - chemistry Xylenes - isolation & purification Xylenes - chemistry Benzene Derivatives - chemistry Toluene - chemistry Benzene Derivatives - isolation & purification Butanols - isolation & purification Soil Pollutants - chemistry Bacteria, Aerobic - metabolism Butanols - chemistry Benzene - chemistry Benzene - isolation & purification Soil Pollutants - isolation & purification Experiments Biodegradation Cupples, Alison M oth Enthalten in Environmental technology London : Selper Ltd, 1990 36(2015), 2, Seite 237 (DE-627)130886505 (DE-600)1039399-7 (DE-576)041591313 0959-3330 nnns volume:36 year:2015 number:2 pages:237 http://dx.doi.org/10.1080/09593330.2014.943298 Volltext http://www.tandfonline.com/doi/abs/10.1080/09593330.2014.943298 http://www.ncbi.nlm.nih.gov/pubmed/25413118 http://search.proquest.com/docview/1627111782 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-IBL GBV_ILN_21 GBV_ILN_23 GBV_ILN_70 58.50 AVZ AR 36 2015 2 237 |
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333.7 690 DNB 58.50 bkl The effect of the potential fuel additive isobutanol on benzene, toluene, ethylbenzene, and p-xylene degradation in aerobic soil microcosms biodegradation benzene BTEX toluene isobutanol Toluene - isolation & purification Volatile Organic Compounds - isolation & purification Volatile Organic Compounds - chemistry Xylenes - isolation & purification Xylenes - chemistry Benzene Derivatives - chemistry Toluene - chemistry Benzene Derivatives - isolation & purification Butanols - isolation & purification Soil Pollutants - chemistry Bacteria, Aerobic - metabolism Butanols - chemistry Benzene - chemistry Benzene - isolation & purification Soil Pollutants - isolation & purification Experiments Biodegradation |
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effect of the potential fuel additive isobutanol on benzene, toluene, ethylbenzene, and p-xylene degradation in aerobic soil microcosms |
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The effect of the potential fuel additive isobutanol on benzene, toluene, ethylbenzene, and p-xylene degradation in aerobic soil microcosms |
| abstract |
Isobutanol is being considered as a fuel additive; however, the effect of this chemical on gasoline degradation (following a spill) has yet to be fully explored. To address this, the current study investigated the effect of isobutanol on benzene, toluene, ethylbenzene and p-xylene (BTEX) degradation in 14 sets of experiments in saturated soils. This involved four hydrocarbons for three soils (12 experiments) and two extra experiments with a lower level of isobutanol (for toluene only). Each soil and hydrocarbon combination involved four abiotic control microcosms and 12 sample microcosms (six with and six without isobutanol). The time for complete degradation of each hydrocarbon varied between treatments. Both toluene and ethylbenzene were rapidly degraded (5-13 days for toluene and 3-13 days for ethylbenzene). In contrast, the time for complete degradation for benzene ranged from 5 to 47 days. The hydrocarbon p-xylene was the most recalcitrant chemical (time for removal ranged from 14 to 86 days) and, in several microcosms, no p-xylene degradation was observed. The effect of isobutanol on hydrocarbon degradation was determined by comparing degradation lag times with and without isobutanol addition. From the 14 treatments, isobutanol only affected degradation lag times in three cases. In two cases (benzene and p-xylene), an enhancement of degradation (reduced lag times) was observed in the presence of isobutanol. In contrast, toluene degradation in one soil was inhibited (increased lag time). These results indicate that co-contamination with isobutanol should not inhibit aerobic BTEX degradation rates. |
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Isobutanol is being considered as a fuel additive; however, the effect of this chemical on gasoline degradation (following a spill) has yet to be fully explored. To address this, the current study investigated the effect of isobutanol on benzene, toluene, ethylbenzene and p-xylene (BTEX) degradation in 14 sets of experiments in saturated soils. This involved four hydrocarbons for three soils (12 experiments) and two extra experiments with a lower level of isobutanol (for toluene only). Each soil and hydrocarbon combination involved four abiotic control microcosms and 12 sample microcosms (six with and six without isobutanol). The time for complete degradation of each hydrocarbon varied between treatments. Both toluene and ethylbenzene were rapidly degraded (5-13 days for toluene and 3-13 days for ethylbenzene). In contrast, the time for complete degradation for benzene ranged from 5 to 47 days. The hydrocarbon p-xylene was the most recalcitrant chemical (time for removal ranged from 14 to 86 days) and, in several microcosms, no p-xylene degradation was observed. The effect of isobutanol on hydrocarbon degradation was determined by comparing degradation lag times with and without isobutanol addition. From the 14 treatments, isobutanol only affected degradation lag times in three cases. In two cases (benzene and p-xylene), an enhancement of degradation (reduced lag times) was observed in the presence of isobutanol. In contrast, toluene degradation in one soil was inhibited (increased lag time). These results indicate that co-contamination with isobutanol should not inhibit aerobic BTEX degradation rates. |
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Isobutanol is being considered as a fuel additive; however, the effect of this chemical on gasoline degradation (following a spill) has yet to be fully explored. To address this, the current study investigated the effect of isobutanol on benzene, toluene, ethylbenzene and p-xylene (BTEX) degradation in 14 sets of experiments in saturated soils. This involved four hydrocarbons for three soils (12 experiments) and two extra experiments with a lower level of isobutanol (for toluene only). Each soil and hydrocarbon combination involved four abiotic control microcosms and 12 sample microcosms (six with and six without isobutanol). The time for complete degradation of each hydrocarbon varied between treatments. Both toluene and ethylbenzene were rapidly degraded (5-13 days for toluene and 3-13 days for ethylbenzene). In contrast, the time for complete degradation for benzene ranged from 5 to 47 days. The hydrocarbon p-xylene was the most recalcitrant chemical (time for removal ranged from 14 to 86 days) and, in several microcosms, no p-xylene degradation was observed. The effect of isobutanol on hydrocarbon degradation was determined by comparing degradation lag times with and without isobutanol addition. From the 14 treatments, isobutanol only affected degradation lag times in three cases. In two cases (benzene and p-xylene), an enhancement of degradation (reduced lag times) was observed in the presence of isobutanol. In contrast, toluene degradation in one soil was inhibited (increased lag time). These results indicate that co-contamination with isobutanol should not inhibit aerobic BTEX degradation rates. |
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The effect of the potential fuel additive isobutanol on benzene, toluene, ethylbenzene, and p-xylene degradation in aerobic soil microcosms |
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The effect of isobutanol on hydrocarbon degradation was determined by comparing degradation lag times with and without isobutanol addition. From the 14 treatments, isobutanol only affected degradation lag times in three cases. In two cases (benzene and p-xylene), an enhancement of degradation (reduced lag times) was observed in the presence of isobutanol. In contrast, toluene degradation in one soil was inhibited (increased lag time). 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