내분비계장애물질의 정수처리 제거 기술 = Removal of Endocrine Disruptors in Drinking Water Treatment Processes

다국어 초록 (Multilingual Abstract)

N/A

다국어 초록 (Multilingual Abstract)

We have studied removal efficiency of three endocrine disruptors (Amitrol, Nonylphenol, Bisphenol-A) by oxidation, coagulation and adsorption processes by activated carbon (including the used carbons). Ozonation and chlorination can oxidate nonylphenol, bisphenol-A and the more dose of powder activated carbon(PAC) the more removal efficiency. Coal Based carbon had more adsorption capacity of amitrol, nonylphenol and bisphenol-A than other two carbons on isotherm test, next was wood based carbon for nonylphenol, and coconut based carbon for bisphenol-A. Used coal and coconut based carbon had higher removal efficiency for amitrol than virgin carbon with service time. Three virgin carbons had 0-20% adsorption efficiency and the used carbons had 79-90% biodegradibility for amitrol. It was showing that hydrophilic material can be removed by biodegradation. The hydrophobic materials like as nonylphenol and bisphenol-A were effectively adsorbed onto all carbons tested in this study. The adsorption capacity reduced with the operation year, and the extent of the reduction was different depending upon the carbon type and the operation year. The adsorption parameters for nonylphenol and bisphenol-A provided by this study could be valuable when GAC adsorption was considered to handle an accidental spill of nonylphenol and bisphenol-A.

참고문헌 (Reference)

1 "an estrogenic xenobiotic released from modified polystrene" p- (p-): 167-73, environmentalhealthperspectives1991

2 "The use of ozone and granular activated carbon in drinking water treatment Treatment of drinking water for organic contaminants" Pegamon Press 1987.

3 "Takashi Hagishita. Pore distribution effect of activated carbon in adsorbing organic micropollutants from natural water Wat. Res. 2001" 167-79,

4 "Removal effect by Cl2 & O3 and determination by LC/MSD in YODOGAWA using acrylamide. JWWA" 2-11, 2003

5 "Initiation of micro- pollutant biodegradation in Virgin GAC Columns" 168-, 1989

6 "Fate of Endocrine disruptor in water treatment processes" 2002.

7 "Caixach J. Degradation of polyethoxylated nonylphenols in a sewage treatment plant.Quantitative analysis by isotopic dilution-HRGC/MS. Water Res 2002" 982-8,

8 "Behavior of alkylphenol polyethoxylate surfactants in the aquatic environment Ⅱ occurrence and trans- formation in rivers" 1143-1152,

9 "Adsorption of simazine long-term- operated biological activated carbon" 17-26, 2001

10 "1999. Adsorption of NOM onto Activated Carbon Effect of Surface Charge and Pore Volume Distribution. Journal of Colloid and Interface Science" 271-280,

11 "'Adsorption of Organic Compounds a handbook of community water supplies" McGraw-Hill Inc s (s): 781-855, 1990