Abstract
In the present study, H 2O 2/UV-C, Fenton and photo-Fenton treatment of 2,4-dichlorophenol was compared in terms of oxidation products and acute toxicity. The oxidation products were identified by gas chromatography-mass spectroscopy, high performance liquid chromatography and ion chromatography, whereas changes in acute toxicity were evaluated by the Vibrio fischeri luminescence inhibition assay. H 2O 2/UV-C and photo-Fenton processes ensured complete 2,4-dichlorophenolremoval, detoxification and significant mineralization. Hydroquinone and formic acid were identified as the common oxidation products of the studied advanced oxidation processes investigated. 3,5-dichloro-2-hydroxybenzaldehyde, phenol, 4-chlorophenol and 2,5-dichlorohydroquinone were identified as the additional H 2O 2/UV-C oxidation products of 2,4-dichlorophenol. Acute toxicity decreased with decreasing 2,4-dichlorophenol and increasing chloride release.
| Original language | English |
|---|---|
| Pages (from-to) | 65-73 |
| Number of pages | 9 |
| Journal | Journal of Photochemistry and Photobiology A: Chemistry |
| Volume | 230 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 15 Feb 2012 |
Funding
The financial support of the Scientific and Technological Research Council of Turkey (TUBITAK, Project No: 111Y145) is gratefully acknowledged. The study was conducted at the laboratory facilities of Istanbul Technical University, Environmental Engineering Department.
| Funders | Funder number |
|---|---|
| TUBITAK | 111Y145 |
| Türkiye Bilimsel ve Teknolojik Araştirma Kurumu |
Keywords
- 2,4-Dichlorophenol (2,4 DCP)
- Acutetoxicity
- Fenton
- H O /UV-C
- Oxidation product
- Photo-Fenton