A research study to monitor the micropollutant levels present in the Han River, a major drinking water source for the Seoul Metropolitan district in Korea, was performed over a five-year period from 2000 to 2004, inclusive. Of the detected micropollutants, phthalates were found to be the major contaminants. In this study, the estrogenic activities of the detected phthalates and raw water samples contaminated with the pollutants were assessed by the E-screen assay using the MCF-7 breast cancer cell line. Of the phthalates, diethyl phthalate (DEP) and di(2-ethylhexyl) phthalate (DEHP) showed relatively high cell proliferation. Using DEP as a phthalate probe, three candidate processes, ozone alone, UV alone, and the ozone/UV combined, were evaluated for their efficiency in removing DEP and reducing its estrogenic activity. The ozone/UV process was shown to have the highest efficiency for the elimination of DEP and its by-products, leading to the complete mineralization of DEP. This study also found that the ozone/UV process is the best candidate to reduce the estrogenicity induced by DEP and its by-products.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.scitotenv.2006.02.051 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The photo-based treatment technology simultaneously removes resistant bacteria and resistant genes from wastewater.
J Environ Sci (China)
February 2025
College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha 410082, China. Electronic address:
Article Synopsis
- The widespread use of antibiotics has led to the prevalence of antibiotic-resistant bacteria (ARB) and their resistance genes (ARGs) across various environments, with traditional wastewater treatment methods being ineffective in fully disinfecting these contaminants.
- Photocatalytic oxidation is emerging as a promising disinfection technology, utilizing free radicals generated from light to eliminate ARB and degrade ARGs in wastewater.
- This review outlines the advancements in photocatalytic oxidation, evaluates various treatment systems, and discusses the role of specific materials like TiO and g-CN in enhancing the removal of ARB and ARGs while suggesting future research directions for improving this technology.
Removal of tetramethylammonium hydroxide (TMAH) by cold plasma treatment combined with periodate oxidation: Degradation, kinetics, and toxicity study.
Chemosphere
August 2024
Department of Polymer-Nano Science and Technology, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, 54896, Republic of Korea; Department of Bionanotechnology and Bioconvergence Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, 54896, Republic of Korea; Department of JBNU-KIST Industry-Academia Convergence Research, Polymer Materials Fusion Research Center, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, 54896, Republic of Korea. Electronic address:
Article Synopsis
- Tetramethylammonium hydroxide (TMAH) is a hazardous chemical used in electronics that poses risks to both ecosystems and human health, prompting research into effective removal methods.
- Traditional methods for TMAH removal have shown low efficiency, leading to the exploration of an innovative approach that combines cold plasma (CP) with periodate oxidation.
- The study found that this combined method significantly enhances the rate of TMAH degradation, achieving a removal efficiency of 29.5% at optimal conditions, making it a promising option for managing TMAH pollution.
Suppressing Organic Bromine but Promoting Bromate: Is the Ultraviolet/Ozone Process a Double-Edged Sword for the Toxicity of Wastewater to Mammalian Cells?
Environ Sci Technol
July 2024
College of Architecture and Environment, Sichuan University, Chengdu 610000, China.
Brominated byproducts and toxicity generation are critical issues for ozone application to wastewater containing bromide. This study demonstrated that ultraviolet/ozone (UV/O, 100 mJ/cm, 1 mg-O/mg-DOC) reduced the cytotoxicity of wastewater from 14.2 mg of pentol/L produced by ozonation to 4.
View Article and Find Full Text PDFFrom wastewater to clean water: Recent advances on the removal of metronidazole, ciprofloxacin, and sulfamethoxazole antibiotics from water through adsorption and advanced oxidation processes (AOPs).
Environ Res
July 2024
Department of Chemical and Materials Engineering, Concordia University, 7141 Sherbrooke Street West, Montréal, Québec, H4B 1R6, Canada. Electronic address:
Antibiotics released into water sources pose significant risks to both human health and the environment. This comprehensive review meticulously examines the ecotoxicological impacts of three prevalent antibiotics-ciprofloxacin, metronidazole, and sulfamethoxazole-on the ecosystems. Within this framework, our primary focus revolves around the key remediation technologies: adsorption and advanced oxidation processes (AOPs).
View Article and Find Full Text PDFA Dual-Channel MoS-Based Selective Gas Sensor for Volatile Organic Compounds.
Nanomaterials (Basel)
April 2024
Department of Physics, Faculty of Science, Istanbul University, Vezneciler, Istanbul 34134, Turkey.
Significant progress has been made in two-dimensional material-based sensing devices over the past decade. Organic vapor sensors, particularly those using graphene and transition metal dichalcogenides as key components, have demonstrated excellent sensitivity. These sensors are highly active because all the atoms in the ultra-thin layers are exposed to volatile compounds.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!