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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Ito, Misaki Fujiwara, Taku Fukahori, Shuji |
| Description | Country affiliation: Japan Author Affiliation: Ito M ( Graduate School of Integrated Arts and Sciences, Kochi University, 200 Monobe Otsu, Nankoku, Kochi, 783-8502, Japan.) |
| Abstract | We investigated the adsorption and decomposition of sulfamethazine (SMT), which is used as a synthetic antibacterial agent and discharged into environmental water, using high-silica Y-type zeolite (HSZ-385), titanium dioxide (TiO2), and TiO2-zeolite composites. By using ultrapure water and secondary effluent as solvents, we prepared SMT solutions (10 µg/L and 10 mg/L) and used them for adsorption and photocatalytic decomposition experiments. When HSZ-385 was used as an adsorbent, rapid adsorption of SMT in the secondary effluent was confirmed, and the adsorption reached equilibrium within 10 min. The photocatalytic decomposition rate using TiO2 in the secondary effluent was lower than that in ultrapure water, and we clarified the inhibitory effect of ions and organic matter contained in the secondary effluent on the reaction. We synthesized TiO2-zeolite composites and applied them to the removal of SMT. During the treatment of 10 µg/L SMT in the secondary effluent using the composites, 76% and more than 99% of the SMT were decomposed within 2 and 4 h by photocatalysis. The SMT was selectively adsorbed onto high-silica Y-type zeolite in the composites. Resultantly, the inhibitory effect of the coexisting materials was reduced, and the composites could remove SMT more effectively compared with TiO2 alone in the secondary effluent. |
| ISSN | 09441344 |
| Issue Number | 2 |
| Volume Number | 21 |
| e-ISSN | 16147499 |
| Journal | Environmental Science and Pollution Research |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2014-01-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Sulfamethazine Chemistry Titanium Water Pollutants, Chemical Water Purification Methods Zeolites Adsorption Anti-bacterial Agents Analysis Catalysis Silicon Dioxide Water Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Medicine |
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