Large solar plant photocatalytic water decontamination: Degradation of atrazine |
| |
Authors: | C. Minero E. Pelizzetti S. Malato J. Blanco |
| |
Affiliation: | ∗Dipartimento di Chimica Analitica, Università di Torino, 10125 Torino, Italy;∗∗CIEMAT, Plataforma Solar de Almeria, 04200 Tabernas, Almeria, Spain |
| |
Abstract: | Photocatalytic degradation of atrazine was successfully and efficiently carried out in a large modular flow trough system under solar light. The degradation leads to complete mineralization of the alkyl substituents of s-triazine, giving trihydroxy-s-triazine as a final product. An efficient detoxification can be attained. The presence of 1 × 10−3m of peroxydisulphate, kept constant during the treatment, is sufficient to remove 98% of atrazine with very short residence times (less than 6 min), and to convert the parent triazine to more than 90% of trihydroxy-s-triazine in less than 2 h. The peroxydisulphate is particularly advantageous when large amounts of polluted ground water have to be treated. The factors affecting the total efficiency are discussed in view of a simple model for the primary events in the photocatalytic system. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|