Water remediation from emerging pollutants by AOPs with ionizing and non-ionizing radiation technologies
| Autor: | Biagio Esposito, Luca Pretali, Salvatore S. Emmi, Francesco Riminucci, Maria Luisa Navacchia |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | ecomondo the green technologies expo 2016, Rimini, 8-11 novembre 2016 info:cnr-pdr/source/autori:Biagio Esposito, Luca Pretali, Salvatore S. Emmi, Francesco Riminucci, Maria Luisa Navacchia,/congresso_nome:ecomondo the green technologies expo 2016/congresso_luogo:Rimini/congresso_data:8-11 novembre 2016/anno:2016/pagina_da:/pagina_a:/intervallo_pagine |
| Popis: | As "Proambiente Consortium" we are mostly interested in Advanced Oxidation Processes (AOPs) treatments of polluted waters with the aim of restoring water quality for further uses in industry, agriculture, and even to comply with standards for drinkable water. AOPs represent an innovative and versatile set of different techniques to deal with water pollution, at atmospheric conditions, in different scenarios. AOPs include: ultraviolet (UV) coupled methods ultrasounds, electron-beam, ?-rays and plasma techniques. Electron beam is the fastest method but also the most investment demanding technology, so it is suitable for large plants and heavy polluted waters. On the other hand, UV based methods are more simple and less energy consuming and can be optimized by the addition of a photocatalyst (i.e. TiO2), or a radical mediators (i.e. H2O2). All these methods have in common the production of hydroxyl radicals (OHo), a very reactive and high diffusible species that promotes the degradation of organic molecules. Herein we present a study on the degradation of a water mixture of four emerging pollutants (ofloxacine, carbamazepine, benzophenone-3 and benzophenone-4) by means of ionizing and non-ionizing radiation technologies. The efficiency of the treatments has been determined by following the disappearance of the parent molecules by HPLC and evaluating the degree of mineralization via total organic carbon analysis. As extension of this study we applied the UV-H2O2 based AOP to the degradation of mixtures of pesticides realizing a reactor voted to a fast and efficient degradation of pesticide water solutions used in the spray machines in agriculture. |
| Databáze: | OpenAIRE |
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