General dental practitioners' Knowledge and practice about the oral hygiene instruction to denture wearers
Journal of Behdasht dar Arseh (i.e., Health in the Field),
Vol. 10 No. 3 (1401),
18 March 2023
,
Page 24-32
https://doi.org/10.22037/jhf.v10i3.39360
Abstract
Background and Aims: Drug compounds, including acetaminophen, enter the environment through urban and industrial wastewater. The presence of these substances in very small amounts causes adverse effects on health. The goal of this research is to investigate of acetaminophen removal from aqueous solution by batch proxy electrochemical reactor with using zinc-copper electrode and hydrogen peroxide.
Materials and Methods: This study is a laboratory experimental research. Water sample containing acetaminophen was prepared and removal efficiency in different conditions of variables pH (4-8), c reaction time (30-90 min), concentration of acetaminophen (50-200 mg/L), current density (3-9 mA/cm2), and concentration of hydrogen peroxide (0.5-1.5 mg/L) were studied. Acetaminophen was determined by high performance liquid chromatography at 360. Ethical considerations were observed at all stages of the study.
Results: In electrochemical reactor, the removal rate of 50 mg/L acetaminophen was obtained in the optimal conditions of 2 cm distance between electrodes, 9 mA/cm2 electric current density, 30 minutes electrolysis time, and pH equal to 4, 63%. In proxy electrochemical reactor, the amount of acetaminophen removal at a concentration of 1.5 mg/L hydrogen peroxide, 9 mA/cm2 electric current density, 30 minutes time reaction, an optimal pH equal to 4, and 50 mg/L acetaminophen concentration was obtained 100%.
Conclusion: Based on these results, the peroxy electrochemical method, as a promising and environmentally friendly advanced oxidation technology, is effective in removing acetaminophen from aqueous solutions and the process implementation conditions are more cost-effective compared to electrochemical method.
- Acetaminophen, Drug, Hydrogen peroxide, Proxy electrochemical
How to Cite
References
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