This study compares efficiency of Fenton's oxidation and ozonation of 17β-estradiol (E2) and 17α-ethinylestradiol (EE2) as two possible processes for removal of estrogens from aqueous solutions. The effectiveness of Fenton's oxidative removal was studied at different ratios of reagents Fe2+:H2O2 (1:0.5; 1:10; 1:20; 1:33), where with some molar ratios up to 100% removal of E2 and EE2 was achieved in the first few minutes of reaction. The best molar ratio for E2 (17β-estradiol) removal was 1:33, while in the case of EE2 the most efficient one was 1:20 ratio. Ozonation was much faster, because complete removal of estrogens was achieved in 30 seconds (pH≈6), but the time of ozonation was extended up to 60 minutes trying to decompose formed by-products, expressing estrogenic activity, detected by YES (Yeast Estrogen Screening) assay. The obtained results showed that the removal efficiency of estrogens from waters should be assessed by a combination of chemical analyses and bioassay.
Skip Nav Destination
Article navigation
Research Article|
May 01 2011
Comparison of Fenton's oxidation and ozonation for removal of estrogens
Jana Nakrst;
Jana Nakrst
1University of Ljubljana, Faculty of Chemistry and Chemical Technology, Aškerčeva 5, SI-1000 Ljubljana, Slovenia
Search for other works by this author on:
Mirjana Bistan;
Mirjana Bistan
2National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia
Search for other works by this author on:
Tatjana Tišler;
Tatjana Tišler
2National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia
Search for other works by this author on:
Jana Zagorc-Končan;
Jana Zagorc-Končan
1University of Ljubljana, Faculty of Chemistry and Chemical Technology, Aškerčeva 5, SI-1000 Ljubljana, Slovenia
Search for other works by this author on:
Jan Derco;
Jan Derco
3Slovak University of Technology, Faculty of Chemical and Food Technology, Institute of Chemical and Environmental Engineering, Radlinskeho 9, 812 37 Bratislava, Slovak Republic
Search for other works by this author on:
Andreja Žgajnar Gotvajn
1University of Ljubljana, Faculty of Chemistry and Chemical Technology, Aškerčeva 5, SI-1000 Ljubljana, Slovenia
E-mail: [email protected]
Search for other works by this author on:
Water Sci Technol (2011) 63 (10): 2131–2137.
Citation
Jana Nakrst, Mirjana Bistan, Tatjana Tišler, Jana Zagorc-Končan, Jan Derco, Andreja Žgajnar Gotvajn; Comparison of Fenton's oxidation and ozonation for removal of estrogens. Water Sci Technol 1 May 2011; 63 (10): 2131–2137. doi: https://doi.org/10.2166/wst.2011.339
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Could not validate captcha. Please try again.
eBook
Pay-Per-View Access
$38.00