PUBLICATION
Advanced UV/H2O2 oxidation of deca-bromo diphenyl ether in sediments
- Authors
- Feo, M.L., Gonzalez, O., Baron, E., Casado, M., Piña, B., Esplugas, S., Eljarrat, E., and Barceló, D.
- ID
- ZDB-PUB-140509-13
- Date
- 2014
- Source
- The Science of the total environment 479-480: 17-20 (Journal)
- Registered Authors
- Piña, Benjamin
- Keywords
- Advanced oxidation processes, BDE-209 removal, Remediation technologies, Sediment remediation
- MeSH Terms
-
- Animals
- Embryo, Nonmammalian/drug effects
- Environmental Restoration and Remediation/methods*
- Flame Retardants/analysis
- Flame Retardants/toxicity
- Geologic Sediments/chemistry*
- Halogenated Diphenyl Ethers/analysis
- Halogenated Diphenyl Ethers/chemistry*
- Halogenated Diphenyl Ethers/toxicity
- Hydrogen Peroxide/chemistry*
- Oxidation-Reduction
- Toxicity Tests
- Ultraviolet Rays*
- Water Pollutants, Chemical/analysis
- Water Pollutants, Chemical/chemistry*
- Water Pollutants, Chemical/toxicity
- Zebrafish/embryology
- PubMed
- 24534697 Full text @ Sci. Total Environ.
Citation
Feo, M.L., Gonzalez, O., Baron, E., Casado, M., Piña, B., Esplugas, S., Eljarrat, E., and Barceló, D. (2014) Advanced UV/H2O2 oxidation of deca-bromo diphenyl ether in sediments. The Science of the total environment. 479-480:17-20.
Abstract
Removal of BDE-209 from contaminated sediments by UV/H2O2 treatment was investigated under different reaction conditions (different UV irradiance and H2O2 concentrations). After 10 h of UV/H2O2 treatment, 90% of BDE-209 was removed with a half-life time (t1/2) of 3.5 h and a kinetic constant (k) of 0.22 h 1.
Possible formation of OH-PBDEs and debrominated polybromodiphenyl ethers was investigated by GC–MS and LC–MS/MS. None of the abovementioned BDE-209 by-products was found after 2.5, 5.5 and 10 h of UV/H2O2 treatment.
Toxicity experiments carried out with zebrafish embryos exposed to the sediment before and after the UV/H2O2 treatment did not show any morphological or behavioural alterations, suggesting that no putative debrominated or oxidation products were originated by the treatment in concentrations high enough to elicit significant toxic effects in zebrafish embryos.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping