[Home ] [Archive]   [ فارسی ]  
:: Volume 6, Issue 1 (Vol.6, No.1,Spring 2018) ::
J Neyshabur Univ Med Sci 2018, 6(1): 81-92 Back to browse issues page
Performance survey of the advanced oxidation process of UV/H2O2 and UV/S2O8 in Dexamethasone removal from aqueous solutions
Reza Shokoohi , Mehdi Salari
Abstract:   (307 Views)
Introduction and Aims:
Pharmaceutical pollutants  in aqueous can cause a number of health problems for people and other creatures. In this study,  a survey of Dexamethasone removal from synthetic aqueous solutions was investigated by using UV/S2O8 and UV/H2O2  methods.
Materials and Methods:
This experimental study carried out at lab scale at a reactor with the batch flow. In this study, the parameters of time (5- 60 min), pH (3, 7 and 11), dose of S2O8 (0.1-7.5 mM), dose of H2O2 (0.1- 7.5 mM), and Dexamethasone concentration (5- 20 mg/L) were studied to specify their effects on Dexamethasone removal. Furthermore, the remaining concentration of dexamethasone was determined by spectrophotometer DR (model 5000) in the 241 nm wavelength.
Results:
Results showed that with the increasing amount of parameters of pH, retention time, and a dose of H2O2 and S2O8 and with decreasing parameter of dexamethasone concentration, removal efficiency raised. Removal efficiencies of dexamethasone in the optimum condition of time=40, pH=3 and dexamethasone concentration = 5 mM was obtained 47, 59, 82, 91, and 98 percent for UV/S2O8 concentrations  of 0.1, 0.5, 1.5, 5, and 7.5 mM, and  19, 49, 61, 65, and 72 percent for UV/H2O2, respectively.
Conclusion:
According to higher removal efficiencies of UV/S2O8 method than UV/H2O2, easier storage and moderate stability of S2O8 and also more oxidation ability of SO4- than OH°, it is better to apply UV/S2O8 method to degradation of dexamethasone.
Keywords: pharmaceutical pollutants, dexamethasone, aqueous solution, removal efficiency
Full-Text [PDF 1238 kb]   (78 Downloads)    
Type of Study: Orginal Article | Subject: Environmental Health
Received: 2017/08/22 | Accepted: 2018/05/13 | Published: 2018/09/9
Add your comments about this article
Your username or Email:

CAPTCHA code


XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Shokoohi R, Salari M. Performance survey of the advanced oxidation process of UV/H2O2 and UV/S2O8 in Dexamethasone removal from aqueous solutions. J Neyshabur Univ Med Sci. 2018; 6 (1) :81-92
URL: http://journal.nums.ac.ir/article-1-389-en.html


Volume 6, Issue 1 (Vol.6, No.1,Spring 2018) Back to browse issues page
مجله علوم پزشکی نیشابور J Neyshabur Univ Med Sci

*** هرگونه کپی برداری از این سایت بدون ذکر منبع غیر قانونی و همراه با پیگیری های قضایی می باشد *** مجله دانشکده علوم پزشکی نیشابور *** Any copying of this site without citing the source is illegal And is associated with the pursuit of justice ***

Persian site map - English site map - Created in 0.14 seconds with 30 queries by YEKTAWEB 3772