Radiolytic degradation of carbofuran by using gamma and gamma/hydrogen peroxide processes
| Autor: | Abdalla A. Elbashir, Mustafa M.O. Ahmed, Khalid Elmamoun Ahmed Ibrahim, Dilek Şolpan |
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| Rok vydání: | 2018 |
| Předmět: |
021110 strategic
defence & security studies Radiation Aqueous solution Ion chromatography 0211 other engineering and technologies Formaldehyde 02 engineering and technology 010501 environmental sciences Mass spectrometry 01 natural sciences chemistry.chemical_compound chemistry Radiolysis Degradation (geology) Hydrogen peroxide Carbofuran 0105 earth and related environmental sciences Nuclear chemistry |
| Zdroj: | Radiation Physics and Chemistry. 153:251-257 |
| ISSN: | 0969-806X |
| DOI: | 10.1016/j.radphyschem.2018.10.014 |
| Popis: | In this study, different gamma-irradiation doses in the range from (0.25–3.0 kGy) were used with and without H2O2 to remove carbofuran (CBF) from aqueous solution The Gas chromatography-Mass spectrometry and ion chromatography were used to determine the intermediates, by-products, aliphatic acids, and inorganic species. The amount of formaldehyde were followed by UV–visible spectrophotometer. The change in dissolved oxygen, total acidity and pH was measured before and after gamma-irradiation. It was found that the dissolved oxygen was decreased from 3.42 to 0.9 mg L−1, pH from 7.20 to 3.75 and the total acidity was increased from 0.30 to 0.98 mg L−1. The completely degradation of carbofuran takes place at 3.0 kGy. As a consequence, the possible degradation pathway was suggested. |
| Databáze: | OpenAIRE |
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