en بهداشت محیط زیست Environmental Health پژوهشي Original Article <p align="LEFT"><font face="TimesNewRomanPS-BoldItalicMT" size="3"><font face="TimesNewRomanPS-BoldItalicMT" size="3"><i><b>Background and Purpose: </b></i></font></font><font face="TimesNewRomanPSMT" lang="JA" size="3"><font face="TimesNewRomanPSMT" lang="JA" size="3">Bisphenol A (BPA) is used to make certain plastics and epoxy resins.</font></font></p> <p align="LEFT"><font face="TimesNewRomanPSMT" lang="JA" size="3"><font face="TimesNewRomanPSMT" lang="JA" size="3">It is a non-biodegradable compound, and poses health risks to both humans and animals. The</font></font></p> <p align="LEFT"><font face="TimesNewRomanPSMT" lang="JA" size="3"><font face="TimesNewRomanPSMT" lang="JA" size="3">purpose of this study was to evaluate decomposition efficiency of BPA from aqueous solutions</font></font></p> <p align="LEFT"><font face="TimesNewRomanPSMT" lang="JA" size="3"><font face="TimesNewRomanPSMT" lang="JA" size="3">using UV irradiation.</font></font></p> <p align="LEFT"><font face="TimesNewRomanPS-BoldItalicMT" size="3"><font face="TimesNewRomanPS-BoldItalicMT" size="3"><i><b>Materials and Methods: </b></i></font></font><font face="TimesNewRomanPSMT" lang="JA" size="3"><font face="TimesNewRomanPSMT" lang="JA" size="3">In this study, the photodegradation of BPA in water were carried out in a</font></font></p> <p align="LEFT"><font face="TimesNewRomanPSMT" lang="JA" size="3"><font face="TimesNewRomanPSMT" lang="JA" size="3">reactor equipped 6 W UV lamp. In order to obtain the optimum operational conditions,</font></font></p> <p align="LEFT"><font face="TimesNewRomanPSMT" lang="JA" size="3"><font face="TimesNewRomanPSMT" lang="JA" size="3">parameters such as BPA concentration (1-50 mg/l), TiO</font></font><font face="TimesNewRomanPSMT" lang="JA" size="1"><font face="TimesNewRomanPSMT" lang="JA" size="1">2 </font></font><font face="TimesNewRomanPSMT" lang="JA" size="3"><font face="TimesNewRomanPSMT" lang="JA" size="3">dosage (0.025-2 g/l), and pH (3-11)</font></font></p> <p align="LEFT"><font face="TimesNewRomanPSMT" lang="JA" size="3"><font face="TimesNewRomanPSMT" lang="JA" size="3">were evaluated. BPA concentration was measured by high-performance liquid chromatography.</font></font></p> <p align="LEFT"><font face="TimesNewRomanPS-BoldItalicMT" size="3"><font face="TimesNewRomanPS-BoldItalicMT" size="3"><i><b>Results: </b></i></font></font><font face="TimesNewRomanPSMT" lang="JA" size="3"><font face="TimesNewRomanPSMT" lang="JA" size="3">The highest degradation was 90% and achieved in 60 min. BPA degradation efficiency</font></font></p> <p align="LEFT"><font face="TimesNewRomanPSMT" lang="JA" size="3"><font face="TimesNewRomanPSMT" lang="JA" size="3">can be effectively improved by increasing pH, decreasing the initial concentration and increasing</font></font></p> <p align="LEFT"><font face="TimesNewRomanPSMT" lang="JA" size="3"><font face="TimesNewRomanPSMT" lang="JA" size="3">TiO</font></font><font face="TimesNewRomanPSMT" lang="JA" size="1"><font face="TimesNewRomanPSMT" lang="JA" size="1">2 </font></font><font face="TimesNewRomanPSMT" lang="JA" size="3"><font face="TimesNewRomanPSMT" lang="JA" size="3">dosage. The optimal dose of TiO</font></font><font face="TimesNewRomanPSMT" lang="JA" size="1"><font face="TimesNewRomanPSMT" lang="JA" size="1">2 </font></font><font face="TimesNewRomanPSMT" lang="JA" size="3"><font face="TimesNewRomanPSMT" lang="JA" size="3">was measured at 0.5 g/l. The degradation decreases with</font></font></p> <p align="LEFT"><font face="TimesNewRomanPSMT" lang="JA" size="3"><font face="TimesNewRomanPSMT" lang="JA" size="3">increasing TiO</font></font><font face="TimesNewRomanPSMT" lang="JA" size="1"><font face="TimesNewRomanPSMT" lang="JA" size="1">2 </font></font><font face="TimesNewRomanPSMT" lang="JA" size="3"><font face="TimesNewRomanPSMT" lang="JA" size="3">dosage.</font></font></p> <p><font face="TimesNewRomanPS-BoldItalicMT" size="3"><font face="TimesNewRomanPS-BoldItalicMT" size="3"><i><b>Conclusion: </b></i></font></font><font face="TimesNewRomanPSMT" lang="JA" size="3"><font face="TimesNewRomanPSMT" lang="JA" size="3">Photocatalytic degradation by using TiO</font></font><b><font face="TimesNewRomanPS-BoldMT" size="1"><font face="TimesNewRomanPS-BoldMT" size="1">2 </font></font></b><font face="TimesNewRomanPSMT" lang="JA" size="3"><font face="TimesNewRomanPSMT" lang="JA" size="3">and low power UV lamp is applicable.</font></font></p> Photocatalytic degradation, Bisphenol A, Low power UV lamp 15 20 http://jhs.mazums.ac.ir/browse.php?a_code=A-10-430-1&slc_lang=en&sid=1 Ramzan ali Dianati 10031947532846003979 10031947532846003979 No Mazandaran University of Medical Sciences, Sari, Iran Mohammad Ali Zazouli 10031947532846003980 10031947532846003980 No Mazandaran University of Medical Sciences, Sari, Iran Jamshid Yazdani-Charati 10031947532846003981 10031947532846003981 No Mazandaran University of Medical Sciences, Sari, Iran Sara Ashrafi sara40a@yahoo.com 10031947532846003982 10031947532846003982 Yes Mazandaran University of Medical Sciences, Sari, Iran Ehsan Rostamali 10031947532846003983 10031947532846003983 No Mazandaran University of Medical Sciences, Sari, Iran