Application of ozone, UV and ozone/UV processes to reduce diethyl phthalate and its estrogenic activity

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 conta...

Full description

Saved in:
Bibliographic Details
Published in:The Science of the total environment 2006-08, Vol.367 (2), p.681-693
Main Authors: Oh, Byung Soo, Jung, Yeon Jung, Oh, Young Jin, Yoo, Young Sook, Kang, Joon-Wun
Format: Article
Language:English
Subjects:
Applied sciences
Cell Line, Tumor
Cell Proliferation
Continental surface waters
Drinking water and swimming-pool water. Desalination
E-screen assay
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Environmental Monitoring - methods
Environmental Monitoring - statistics & numerical data
Estrogenic activity
Exact sciences and technology
Freshwater
Humans
Korea
MCF-7 cell
Natural water pollution
Ozone
Ozone - chemistry
Phthalate
Phthalic Acids - chemistry
Pollution
Pollution, environment geology
Rivers - chemistry
Ultraviolet Rays
Water Pollutants, Chemical - analysis
Water Purification - methods
Water treatment and pollution
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0048-9697
1879-1026
DOI:10.1016/j.scitotenv.2006.02.051