Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Advanced oxidation and adsorption for organic micropollutant removal from lake waterused as drinking-water supply |
| Abstract | The goal of this research is to evaluate the effectiveness of innovative drinking water treatments designed to remove toxic and mutagenic organic micropollutants from lake waters used for human consumption. The widely used adsorption on granular activated carbon filter technique (GAC) was compared to the more innovative resin column techniques (XAD-4 and Ambersorb-563) and to the Advanced Oxidation Processes (AOP) with UV/O3 and UV/O3/H2O2. The water samples, collected from lake Como, treated with these techniques were analysed; for mutagenic activity using Ames assay, for toxicity using bioluminescent bacteria and organic compound were characterized using the GC-MS technique. The results found a decrease of the mutagenic and toxic activities of the lake water after adsorption on GAC and resins, while the AOP process generally increased these parameters. The absence of mutagenic activity was found only when a GAC adsorption step was performed in addition to the AOP process. Similar results were obtained by the toxicological and chemical analyses. In addition, the GC-MS analysis identified some possible mutagenic agents |
| Keywords | Mutagenicitytoxicity testXAD-4Ambersob 563AOP process |
| Year | 2002 |
| Type | Articolo in rivista |
| Authors | Guzzella L., Feretti D., Monarca S. |
| Text | 42079 2002 Mutagenicity toxicity test XAD 4 Ambersob 563 AOP process Advanced oxidation and adsorption for organic micropollutant removal from lake waterused as drinking water supply Guzzella L., Feretti D., Monarca S. 1 IRSA, 2 Universita di Brescia The goal of this research is to evaluate the effectiveness of innovative drinking water treatments designed to remove toxic and mutagenic organic micropollutants from lake waters used for human consumption. The widely used adsorption on granular activated carbon filter technique GAC was compared to the more innovative resin column techniques XAD 4 and Ambersorb 563 and to the Advanced Oxidation Processes AOP with UV/O3 and UV/O3/H2O2. The water samples, collected from lake Como, treated with these techniques were analysed; for mutagenic activity using Ames assay, for toxicity using bioluminescent bacteria and organic compound were characterized using the GC MS technique. The results found a decrease of the mutagenic and toxic activities of the lake water after adsorption on GAC and resins, while the AOP process generally increased these parameters. The absence of mutagenic activity was found only when a GAC adsorption step was performed in addition to the AOP process. Similar results were obtained by the toxicological and chemical analyses. In addition, the GC MS analysis identified some possible mutagenic agents 36 Ulteriori informazioni sul prodotto max 1000 car Il miglior trattamento di rimozione dei mutageni si e ottenuto con un trattamento AOP e carbone attivo. Questo tipo di metodica trova applicazione nel trattamento di acque superficiali destinate al consumo umano per la gestione degli impianti di potabilizzazione. Articolo in rivista liciamaria.guzzella GUZZELLA LICIA MARIA |