Volume 11, Issue 3 (5-2024)
J Environ Health Eng 2024, 11(3): 302-314 |
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Fattahi N, Sharfi K, Moradi M. The survey of Ultrasound/Ferrate Process efficiency towards Beta-Estradiol 17 (E2) Oxidation in Aqueous Solutions: Investigating Chloroform Formation as a Disinfection Byproduct. J Environ Health Eng 2024; 11 (3) :302-314
URL: http://jehe.abzums.ac.ir/article-1-1046-en.html
URL: http://jehe.abzums.ac.ir/article-1-1046-en.html
Research Center for Environmental determinants of Health, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
Abstract: (683 Views)
Background: Hormones are chemical substances that can disrupt the processes and functions of the endocrine system in both humans and animals. The objective of this study is to examine the degradation of beta-estradiol 17 (E2) hormone through the ultrasound/ferrate process in aqueous solutions and the possibility of chloroform formation as a disinfection byproduct.
Methods: The experiments were conducted using a 250 mL glass container. An ultrasound device operating at frequencies between 24 kHz and 80 kHz, with a maximum power of 200 W, was used as the ultrasound source. Potassium ferrate was employed as the oxidizing agent. The effects of various operating parameters, including reaction time, pH, E2 hormone concentration, ferrate concentration, and ultrasound intensity, were evaluated. After the oxidation process, the sample underwent ultraviolet/chlorine radiation to examine the potential formation of chloroform as a disinfection byproduct.
Results: The results indicate that the ferrate-ultrasound system exhibited the highest pollutant removal efficiency, followed by ultrasound and ferrate individually. Specifically, the rates of removal were 0.123 min-1 for the ferrate-ultrasound system, 0.103 min-1 for ultrasound, and 0.0076 min-1 for ferrate. Furthermore, the optimal conditions for E2 hormone removal were found to be pH 3, a ferrate dose of 200 mg/L, an ultrasound frequency intensity of 80 kHz, and an E2 hormone concentration of 100 mg/L, resulting in 100% removal. The study also found that the highest amount of chloroform formed was associated with the ultrasound, ferrate, and ferrate-ultrasound systems, respectively. Additionally, the potential for chloroform formation was higher in ultraviolet/chlorine conditions compared to chlorine alone.
Conclusion: The findings of this study demonstrate the efficacy of the ultrasound-ferrate method in oxidizing E2 hormones and its potential to mitigate the formation of disinfection byproducts.
Methods: The experiments were conducted using a 250 mL glass container. An ultrasound device operating at frequencies between 24 kHz and 80 kHz, with a maximum power of 200 W, was used as the ultrasound source. Potassium ferrate was employed as the oxidizing agent. The effects of various operating parameters, including reaction time, pH, E2 hormone concentration, ferrate concentration, and ultrasound intensity, were evaluated. After the oxidation process, the sample underwent ultraviolet/chlorine radiation to examine the potential formation of chloroform as a disinfection byproduct.
Results: The results indicate that the ferrate-ultrasound system exhibited the highest pollutant removal efficiency, followed by ultrasound and ferrate individually. Specifically, the rates of removal were 0.123 min-1 for the ferrate-ultrasound system, 0.103 min-1 for ultrasound, and 0.0076 min-1 for ferrate. Furthermore, the optimal conditions for E2 hormone removal were found to be pH 3, a ferrate dose of 200 mg/L, an ultrasound frequency intensity of 80 kHz, and an E2 hormone concentration of 100 mg/L, resulting in 100% removal. The study also found that the highest amount of chloroform formed was associated with the ultrasound, ferrate, and ferrate-ultrasound systems, respectively. Additionally, the potential for chloroform formation was higher in ultraviolet/chlorine conditions compared to chlorine alone.
Conclusion: The findings of this study demonstrate the efficacy of the ultrasound-ferrate method in oxidizing E2 hormones and its potential to mitigate the formation of disinfection byproducts.
Type of Study: Research |
Subject:
Special
Received: 2024/06/8 | Accepted: 2024/06/12 | Published: 2024/07/9
Received: 2024/06/8 | Accepted: 2024/06/12 | Published: 2024/07/9
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