Anaerobic biodegradation of BTEX using Mn(IV) and Fe(III) as alternative electron acceptors

Villatoro-Monzón, Wilverth R.; Mesta-Howard, A. M.; Razo-Flores, Elı́as

doi:10.2166/wst.2003.0375

Cited by 47 publications

(25 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Benzene was anaerobically degraded in sediments coupled to the reduction of Fe(III) (4,10,43,44,53), Mn(IV) (61), sulfate (3,20,23,27,34,35,40,64), carbon dioxide (17,65), and graphite electrodes (67). Enrichment cultures capable of anaerobic oxidation of benzene with either sulfate (1,7,18,19,(49)(50)(51), carbon dioxide (26,54,59), or Fe(III) (11,31,37,53) as the electron acceptor have been described.…”

mentioning

confidence: 99%

Anaerobic Oxidation of Benzene by the Hyperthermophilic Archaeon Ferroglobus placidus

Holmes

Risso

Smith

et al. 2011

Appl Environ Microbiol

View full text Add to dashboard Cite

Anaerobic benzene oxidation coupled to the reduction of Fe(III) was studied inFerroglobus placidusin order to learn more about how such a stable molecule could be metabolized under strict anaerobic conditions.F. placidusconserved energy to support growth at 85°C in a medium with benzene provided as the sole electron donor and Fe(III) as the sole electron acceptor. The stoichiometry of benzene loss and Fe(III) reduction, as well as the conversion of [14C]benzene to [14C]carbon dioxide, was consistent with complete oxidation of benzene to carbon dioxide with electron transfer to Fe(III). Benzoate, but not phenol or toluene, accumulated at low levels during benzene metabolism, and [14C]benzoate was produced from [14C]benzene. Analysis of gene transcript levels revealed increased expression of genes encoding enzymes for anaerobic benzoate degradation during growth on benzene versus growth on acetate, but genes involved in phenol degradation were not upregulated during growth on benzene. A gene for a putative carboxylase that was more highly expressed in benzene- than in benzoate-grown cells was identified. These results suggest that benzene is carboxylated to benzoate and that phenol is not an important intermediate in the benzene metabolism ofF. placidus. This is the first demonstration of a microorganism in pure culture that can grow on benzene under strict anaerobic conditions and for which there is strong evidence for degradation of benzene via clearly defined anaerobic metabolic pathways. Thus,F. placidusprovides a much-needed pure culture model for further studies on the anaerobic activation of benzene in microorganisms.

show abstract

mentioning

confidence: 99%

Anaerobic Oxidation of Benzene by the Hyperthermophilic Archaeon Ferroglobus placidus

Holmes

Risso

Smith

et al. 2011

Appl Environ Microbiol

View full text Add to dashboard Cite

show abstract

“…In this process, dissimilatory Fe-reducing bacteria (DIRB), such as Geobacter metallireducens, metabolically degrade organic matter while respiring on Fe(III) or Mn(IV). Dissimilatory iron or manganese reduction has been applied for the removal of monoaromatic compounds, such as benzene, toluene, ethylbenzene, and xylene isomers (BTEX) (Langenhoff et al, 1996b;Anderson et al, 1998;Villatoro-Monzon et al, 2003;Jahn et al, 2005;;Rosenberg et al, 2013). A previous study shows the complete removal of BTEX with Fe(III) at a rate of 0.19 mmol/(L¢d) (Villatoro-Monzon et al, 2003).…”

Section: Other Promising Processesmentioning

confidence: 99%

“…Dissimilatory iron or manganese reduction has been applied for the removal of monoaromatic compounds, such as benzene, toluene, ethylbenzene, and xylene isomers (BTEX) (Langenhoff et al, 1996b;Anderson et al, 1998;Villatoro-Monzon et al, 2003;Jahn et al, 2005;;Rosenberg et al, 2013). A previous study shows the complete removal of BTEX with Fe(III) at a rate of 0.19 mmol/(L¢d) (Villatoro-Monzon et al, 2003). Dissimilatory iron reduction has been shown for a variety of soluble and insoluble Fe(III) forms, indicating the versatility of this process (Lovley, 1991;Lovley et al, 2004).…”

Section: Other Promising Processesmentioning

confidence: 99%

“…In addition, Mn(IV) can be used as an alternative electron acceptor by some DIRB (Rosenberg et al, 2013). Together with Mn(IV)-reducing bacteria, the process is employed to remove aromatic compounds, for example, BTEX (Dorer et al, 2016;Villatoro-Monzon et al, 2003). Results show that complete biodegradation of BTEX (Villatoro-Monzon et al, 2003) and >60% naphthalene is mineralized to CO 2 with Mn(IV) as the terminal electron acceptor (Langenhoff et al, 1996a).…”

Section: Other Promising Processesmentioning

confidence: 99%

See 1 more Smart Citation

Pharmaceutical removal from water with iron- or manganese-based technologies: A review

Liu

Sutton

Rijnaarts

et al. 2016

Critical Reviews in Environmental Science and Technology

View full text Add to dashboard Cite

Pharmaceuticals are detected at trace levels in waters. Their adverse effects on aquatic ecosystems and human health demand novel pharmaceutical removal technologies for treating wastewater effluents. Iron (Fe) or manganese (Mn) may play important roles in these new technologies since these metals are abundantly available at low costs and are known to contribute to organic conversions via physico-chemical, chemical, and biologically related processes. Few reviews describe and discuss Fe-or Mn-based technologies for the purpose to remove pharmaceuticals from water. Therefore, we review the current literature sorted into the three removal mechanisms, that is., through physico-chemical, chemical, and biological processes. The principals, performance, and influential parameters of these three types of technologies are described. Current and potential applications of these technologies are critically evaluated in order to identify advantages and challenges. In addition, the Fe-or Mn-based technologies which are currently not used but promising to further develop to remove pharmaceuticals cost efficiently are proposed.

show abstract

“…However, a reliable estimation of both contaminant mass flux into the aquatic system and the mechanisms of concurrent depletion are essential for site risk assessment. On the sink side, the physical accessibility of solid-phase geogenic TEA, predominantly Fe(III), and Mn(IV) species, is dependent on their crystallinity, which is not commonly analyzed except for sites of research interest (Villatoro-Monzón et al, 2003;Lovley et al, 2004;Scherr et al, 2016). Reduced species may be recharged in the upper aquifer portions, as molecular oxygen infiltrated by rain (Foulquier et al, 2010) or on a discontinuous scale from upgradient regions, such as nitrate from agricultural use.…”

Section: Introductionmentioning

confidence: 99%

Composition and Dissolution of a Migratory, Weathered Coal Tar Creosote DNAPL

Scherr

Vasilieva

Lantschbauer

et al. 2016

Front. Environ. Sci.

View full text Add to dashboard Cite

Opaque, viscous tars derived from the carbonization of fossile carbon feedstocks, such coal tars and creosote, are long-term sources of groundwater contamination, predominantly with poly-and heterocyclic aromatic hydrocarbons (PAH). The dissolution, aging and migratory behavior of dense, non-aqueous phase liquid (DNAPL) coal tar blobs and pools forming at the aquitard is not sufficiently understood to estimate the risk and adequately design groundwater treatment measures at a contaminated site. In this study, we investigate the composition and dissolution of a migrated, aged creosote DNAPL, and corresponding experimental and groundwater profiles using comprehensive two-dimensional gas chromatography (GCxGC-MS). GC-FID unresolved compounds were attributed to methylated homocyclic species using GCxGC-MS in the Methylanthracene weight range. Equilibrium concentrations were estimated using Raoult's law, assuming non-ideal behavior. Low molecular weight compounds were found to be prevalent even after decades of weathering, with Naphthalene (8% by mass) representing the most abundant identified compound, contrary to the expected preferential depletion of hydrophilic compounds. Morevoer, dimethylnaphthalenes were relatively more abundant in the aqueous boundary layer than in the DNAPL. DNAPL migration over 400 m with the groundwater flow effected lower viscosity and specific gravity of the migrated phase body in a superposition of weathering, transport, and aquifer chromatography effects. Based on a decomposition of analyzed and estimated constituents using the group contribution approach, reference DNAPL values for activity coefficients γ i were used to model aqueous solubilities for selected compounds. Anthracene was close to its theoretical precipitation limit in the bulk DNAPL. While laboratory and modeled DNAPL dissolution behavior agree well, field data imply the presence of specific interfacial in situ processes significantly impacting dissolution processes. Based on aqueous GCxGC-MS profiles over the DNAPL, a hypothetical interfacial in situ film was calculated to be composed primarily of Phenanthrene, with minor contribution by Naphthalene, possibly forming a viscous barrier for the dissolution Scherr et al.Environmental Coal Tar DNAPL Weathering of lower molecular weight PAH. The main advances and gaps in electron donor DNAPL understanding are discussed regarding our conception of weathered, migrating hydrophobic DNAPL bodies in the aquifer of historic contaminated sites for the adequate treatment of contaminated water.

show abstract

Anaerobic biodegradation of BTEX using Mn(IV) and Fe(III) as alternative electron acceptors

Cited by 47 publications

References 27 publications

Anaerobic Oxidation of Benzene by the Hyperthermophilic Archaeon Ferroglobus placidus

Anaerobic Oxidation of Benzene by the Hyperthermophilic Archaeon Ferroglobus placidus

Pharmaceutical removal from water with iron- or manganese-based technologies: A review

Composition and Dissolution of a Migratory, Weathered Coal Tar Creosote DNAPL

Contact Info

Product

Resources

About