Degradation and toxicity assessment of sulfamethoxazole and chlortetracycline using electron beam, ozone and UV
| Autor: | Myunjoo Lee, Seung Joo Lim, Sang Don Kim, Hyun Young Kim, Seungho Yu, Tae-Hun Kim |
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| Rok vydání: | 2012 |
| Předmět: |
Environmental Engineering
Ozone Sulfamethoxazole Ultraviolet Rays Health Toxicology and Mutagenesis Electrons Organic compound Water Purification chemistry.chemical_compound Anti-Infective Agents Chlorophyta Animals Environmental Chemistry Waste Management and Disposal Effluent Pollutant chemistry.chemical_classification Fishes Mineralization (soil science) Pollution chemistry Wastewater Environmental chemistry Degradation (geology) Sewage treatment Water Pollutants Chemical Chlortetracycline |
| Zdroj: | Journal of Hazardous Materials. :237-242 |
| ISSN: | 0304-3894 |
| DOI: | 10.1016/j.jhazmat.2012.05.038 |
| Popis: | Recently, the occurrence of antibiotics in sewage treatment plant effluent, as well as drinking water, has raised concern about their potential impacts on the environment and public health. Antibiotics are found in surface and ground waters, which indicate their ineffective removal by conventional wastewater treatment processes. Therefore, advanced oxidation processes (AOPs) have received considerable attention for the removal of antibiotics. This study was conducted to evaluate the degradation and mineralization of antibiotics (sulfamethoxazole and chlortetracycline) using an electron beam, ozone and UV, and the change of toxicity. Also, the electrical energy consumption based on the EE/O parameter (the electrical energy required per order of pollutants removal in 1 m(3) wastewater) was used to quantify the energy cost associated with the different AOPs (electron beam, ozone and UV) for the degradation of antibiotics. The results showed that an electron beam effective for the removals of both sulfamethoxazole and chlortetracycline in aqueous solutions. However, degradation of the target compounds by ozone and UV showed different trends. The oxidation efficiency of each organic compound was very dependent upon the AOP used. Algal toxicity was significantly reduced after each treatment. However, based on the electrical energy, the electron beam was more efficient than ozone and UV. Electron beam treatment could be an effective and safe method for the removal of antibiotic compounds. |
| Databáze: | OpenAIRE |
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