Denitrification and phenol degradation in a contaminated aquifer
A natural groundwater system modified by pollutant phenols and agricultural nitrate has been modelled in the laboratory by a series of sacrificial microcosm experiments. Samples of aquifer sediment and groundwater from the margin of the phenol plume were used to inoculate anaerobic microcosms enrich...
Published in: | Journal of Contaminant Hydrology |
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2001
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ftuglasgow:oai:eprints.gla.ac.uk:814 2024-06-02T08:05:12+00:00 Denitrification and phenol degradation in a contaminated aquifer Spence, M.J. Bottrell, S.H. Higgo, J.J.W. Harrison, I. Fallick, A.E. 2001-12 https://eprints.gla.ac.uk/814/ https://doi.org/10.1016/S0169-7722(01)00171-1 unknown Spence, M.J., Bottrell, S.H., Higgo, J.J.W., Harrison, I. and Fallick, A.E. <http://eprints.gla.ac.uk/view/author/1774.html> (2001) Denitrification and phenol degradation in a contaminated aquifer. Journal of Contaminant Hydrology <https://eprints.gla.ac.uk/view/journal_volume/Journal_of_Contaminant_Hydrology.html>, 53(3-4), pp. 305-318. (doi:10.1016/S0169-7722(01)00171-1 <https://doi.org/10.1016/S0169-7722(01)00171-1>) TD Environmental technology. Sanitary engineering QR Microbiology QE Geology Articles PeerReviewed 2001 ftuglasgow https://doi.org/10.1016/S0169-7722(01)00171-1 2024-05-06T14:55:59Z A natural groundwater system modified by pollutant phenols and agricultural nitrate has been modelled in the laboratory by a series of sacrificial microcosm experiments. Samples of aquifer sediment and groundwater from the margin of the phenol plume were used to inoculate anaerobic microcosms enriched in nitrate and pollutant phenols. Rapid degradation of phenol and p-cresol was observed over a 35-day period leading to the generation of inorganic carbon and a number of transient intermediates. O- cresol proved to be recalcitrant on the experimental time- scale. A mass balance calculation shows that. during degradation, carbon was conserved in the aqueous phase. Groundwater-sediment interactions were monitored using carbon stable isotope data. A mass balance for solution TIC indicates that p-cresol degradation stimulated the dissolution of sedimentary carbonate phases due to the formation of carbonic acid. Coin pound-specific carbon isotope analysis (GC-IRMS) was used to search for C-13 enrichment in residual p-cresol. A slight enrichment trend (epsilon = - 2.5 parts per thousand) was tentatively identified. The potential of this fractionation effect for obtaining in situ degradation rates is discussed. Results from the microcosm experiments help to explain the observed distribution of nitrate and phenols within the polluted aquifer. Article in Journal/Newspaper Carbonic acid University of Glasgow: Enlighten - Publications Journal of Contaminant Hydrology 53 3-4 305 318 |
institution |
Open Polar |
collection |
University of Glasgow: Enlighten - Publications |
op_collection_id |
ftuglasgow |
language |
unknown |
topic |
TD Environmental technology. Sanitary engineering QR Microbiology QE Geology |
spellingShingle |
TD Environmental technology. Sanitary engineering QR Microbiology QE Geology Spence, M.J. Bottrell, S.H. Higgo, J.J.W. Harrison, I. Fallick, A.E. Denitrification and phenol degradation in a contaminated aquifer |
topic_facet |
TD Environmental technology. Sanitary engineering QR Microbiology QE Geology |
description |
A natural groundwater system modified by pollutant phenols and agricultural nitrate has been modelled in the laboratory by a series of sacrificial microcosm experiments. Samples of aquifer sediment and groundwater from the margin of the phenol plume were used to inoculate anaerobic microcosms enriched in nitrate and pollutant phenols. Rapid degradation of phenol and p-cresol was observed over a 35-day period leading to the generation of inorganic carbon and a number of transient intermediates. O- cresol proved to be recalcitrant on the experimental time- scale. A mass balance calculation shows that. during degradation, carbon was conserved in the aqueous phase. Groundwater-sediment interactions were monitored using carbon stable isotope data. A mass balance for solution TIC indicates that p-cresol degradation stimulated the dissolution of sedimentary carbonate phases due to the formation of carbonic acid. Coin pound-specific carbon isotope analysis (GC-IRMS) was used to search for C-13 enrichment in residual p-cresol. A slight enrichment trend (epsilon = - 2.5 parts per thousand) was tentatively identified. The potential of this fractionation effect for obtaining in situ degradation rates is discussed. Results from the microcosm experiments help to explain the observed distribution of nitrate and phenols within the polluted aquifer. |
format |
Article in Journal/Newspaper |
author |
Spence, M.J. Bottrell, S.H. Higgo, J.J.W. Harrison, I. Fallick, A.E. |
author_facet |
Spence, M.J. Bottrell, S.H. Higgo, J.J.W. Harrison, I. Fallick, A.E. |
author_sort |
Spence, M.J. |
title |
Denitrification and phenol degradation in a contaminated aquifer |
title_short |
Denitrification and phenol degradation in a contaminated aquifer |
title_full |
Denitrification and phenol degradation in a contaminated aquifer |
title_fullStr |
Denitrification and phenol degradation in a contaminated aquifer |
title_full_unstemmed |
Denitrification and phenol degradation in a contaminated aquifer |
title_sort |
denitrification and phenol degradation in a contaminated aquifer |
publishDate |
2001 |
url |
https://eprints.gla.ac.uk/814/ https://doi.org/10.1016/S0169-7722(01)00171-1 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_relation |
Spence, M.J., Bottrell, S.H., Higgo, J.J.W., Harrison, I. and Fallick, A.E. <http://eprints.gla.ac.uk/view/author/1774.html> (2001) Denitrification and phenol degradation in a contaminated aquifer. Journal of Contaminant Hydrology <https://eprints.gla.ac.uk/view/journal_volume/Journal_of_Contaminant_Hydrology.html>, 53(3-4), pp. 305-318. (doi:10.1016/S0169-7722(01)00171-1 <https://doi.org/10.1016/S0169-7722(01)00171-1>) |
op_doi |
https://doi.org/10.1016/S0169-7722(01)00171-1 |
container_title |
Journal of Contaminant Hydrology |
container_volume |
53 |
container_issue |
3-4 |
container_start_page |
305 |
op_container_end_page |
318 |
_version_ |
1800749992714960896 |