Ozonation of wastewater: removal and transformation products of drugs of abuse
| Autor: | Angela Rodayan, Viviane Yargeau, Pedro A. Segura |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Drug
Environmental Engineering Ozone 010504 meteorology & atmospheric sciences media_common.quotation_subject 010501 environmental sciences Wastewater 01 natural sciences Waste Disposal Fluid Matrix (chemical analysis) chemistry.chemical_compound medicine Environmental Chemistry Waste Management and Disposal 0105 earth and related environmental sciences media_common Illicit Drugs MDMA Methamphetamine Pollution Chemical formula 6. Clean water chemistry 13. Climate action Environmental chemistry Benzoylecgonine Water Pollutants Chemical medicine.drug |
| Zdroj: | The Science of the total environment. 487 |
| ISSN: | 1879-1026 |
| Popis: | In this study amphetamine, methamphetamine, methylenedioxymethamphetamine (MDMA), cocaine (COC), benzoylecgonine (BE), ketamine (KET) and oxycodone (OXY) in wastewater at concentrations of 100 μgL(-1) were subjected to ozone to determine their removals as a function of ozone dose and to identify significant oxidation transformation products (OTPs) produced as a result of ozonation. A method based on high resolution mass spectrometry and differential analysis was used to facilitate and accelerate the identification and structural elucidation of the transformation products. The drug removal ranged from 3 to 50% depending on the complexity of the matrix and whether a mixture or individual drugs were ozonated. Both transient and persistent oxidation transformation products were identified for MDMA, COC and OXY and their chemical formulae were determined. Three possible structures of the persistent transformation product of MDMA (OTP-213) with chemical formula C10H16O4N, were determined based on MS(n) mass spectra and the most plausible structure (OTP-213a) was determined based on the chemistry of ozone. These results indicate that ozone is capable of removing drugs of abuse from wastewater to varying extents and that persistent transformation products are produced as a result of treatment. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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