Biodegradation of Chlorobenzene and Nitrobenzene at Interfaces between Sediment and Water

Date

2012-11-06

Author

Kurt, Zöhre
Spain, Jim C.

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

255
views

0
downloads

Plumes of contaminated groundwater often pass through an oxic/anoxic interface when they discharge into surface water bodies. We tested the hypothesis that contaminants recalcitrant under anaerobic conditions but degradable under aerobic conditions can be biodegraded at the interface resulting in the protection of the overlying water. Flow-through columns containing sediment and water were used to evaluate degradation of synthetic organic compounds at the thin organic layer at the sediment/water interface. Sediment samples collected from several sites contaminated with nitrobenzene (NB) or chlorobenzene (CB) were tested for their biodegradation capacities in the columns. The biodegradation capacities of sediment in the columns were 2-4,2 g CB.m(-2).d(-1) and 6.5 g NB.m(2).d(-1). Bacteria able to carry out rapid and complete biodegradation of CB or NB were detected in the sediments prior to the experiments, which suggested the presence of an active microbial community at the contaminated sites. The results revealed robust biodegradation of toxic compounds migrating across the sediment/water interface and indicate that the biodegradation capacities were sufficient to eliminate transport of the contaminants to the overlying water in the field.

Subject Keywords

General Chemistry, Environmental Chemistry

URI

https://hdl.handle.net/11511/34454

Journal

ENVIRONMENTAL SCIENCE & TECHNOLOGY

DOI

https://doi.org/10.1021/es302897j

Collections

Department of Environmental Engineering, Article

Suggestions

OpenMETU
Core

ANALYSIS OF DIFFUSION AND SORPTION OF CHLORINATED HYDROCARBONS IN SOIL BY SINGLE-PELLET MOMENT TECHNIQUE CABBAR, C; DOGU, G; Doğu, Timur; MCCOY, BJ; SMITH, JM (American Chemical Society (ACS), 1994-07-01) The single-pellet moment technique was shown to be a powerful method for investigating the diffusion and adsorption of volatile hydrocarbons in the soil. The technique was used to evaluate effective diffusivities, adsorption equilibrium, and rate constants of chlorinated hydrocarbons (monochloroethane, 1,2-dichloroethane, 1,1,1-trichloroethane, and 1,1,2-trichloroethane). Results obtained in a dry system showed that adsorption rate constants of all these hydrocarbons on the soil pellet used are of the same ...
Rapid and Concomitant Analysis. of Pharmaceuticals in Treated Wastewater by Coated Blade Spray Mass Spectrometry Poole, Justen J.; Gomez-Rios, German A.; Boyacı, Ezel; Reyes-Garces, Nathaly; Pawliszyn, Janusz (American Chemical Society (ACS), 2017-11-07) The widespread use of pharmaceuticals in both human and animal populations, and the resultant contamination of surface waters from the outflow of water treatment facilities is an issue of growing concern. This has raised the need for analytical methods that can both perform rapid sample analysis and overcome the limitations of conventional analysis procedures, such as multistep workflows and tedious procedures. Coated blade spray (CBS) is a solid-phase microextraction based technique that enables the direct...
Inorganic antimony speciation using tungsten coil atom trap and hydride generation atomic absorption spectrometry Akay, Pınar; Ataman, Osman Yavuz; Department of Chemistry (2010) Antimony is a toxic element which is mostly found in two oxidation states (III and V) in environmental, biological and geological samples. Antimony may form various inorganic and organic compounds that exhibit differences in analytical behavior, toxicity and mobility; inorganic compounds of antimony are more toxic than organic forms and toxicity of Sb(III) has been shown to be 10 times higher than that of Sb(V). Therefore selective determination of Sb(III) and Sb(V) is required in environmental and biologic...
FORMATION OF METASTABLE VATERITE CRYSTALS IN A POLYMER MATRIX BY GASEOUS DIFFUSION PITCHER, MICHAEL W.; NESHAT, ABDOLLAH; SEYYIDOĞLU, SEMIH (SciELO Agencia Nacional de Investigacion y Desarrollo (ANID), 2008-6) A composite consisting of a polymer and calcium carbonate has been synthesized by allowing carbon dioxide to diffuse into a poly(ethylene oxide) film containing a Source of calcium ions. The X-ray pattern of the synthetic composite material shows that the least thermodynamically stable polymorph of calcium carbonate, vaterite is the mineral phase which is formed, rather than the most thermodynamically stable calcite phase. This effect has been seen in other reports of crystallization of inorganic phases whi...
Time Weighted Average Concentration Monitoring Based on Thin Film Solid Phase Microextraction Ahmadi, Fardin; Sparham, Chris; Boyacı, Ezel; Pawliszyn, Janusz (American Chemical Society (ACS), 2017-04-04) Time weighted average (TWA) passive sampling with thin film solid: phase micro extraction (TF-SPME) and liquid chromatography tandem mass spectrometry (LC-MS/MS) was used for collection, identification, and quantification of benzophenone-1, benzophenone-2, benzophenone-3, benzophenone-4, 2-phenylbenzimidazole-5-sulfonic acid, octocrylene, octylmethoxycinnamate, butylmethoxydibenzgylmethane, triclocarban and triclosan in the aquatic environment. Two types of TF-SPME passive samplers, including a retracted th...

Citation Formats

Z. Kurt and J. C. Spain, “Biodegradation of Chlorobenzene and Nitrobenzene at Interfaces between Sediment and Water,” ENVIRONMENTAL SCIENCE & TECHNOLOGY, pp. 11829–11835, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/34454.