TY - JOUR
T1 - Continuous treatments of estrogens through polymerization and regeneration of electrolytic cells
AU - Cong, Vo Huu
AU - Sakakibara, Yutaka
N1 - Funding Information:
This research was supported in part by the Grant-in-Aid for Scientific Research (B) (No. 24360219 ), the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan and Waseda University Grants for Special Research Project (No. 2013A-887 ). We appreciate kind help from Mr. Sota Iwaya (Waseda Univerisity, Japan) and Ms. Amanda Allbritton (Purdue University, USA). Author V.H. Cong thanks the Vietnam International Education and Development, Ministry of Education and Training for the PhD scholarship.
Publisher Copyright:
© 2014 Elsevier B.V.
PY - 2015/3/1
Y1 - 2015/3/1
N2 - This study proposes a novel electrolytic method for simultaneous removal of trace estrogens and regeneration of electrolytic cells for long-term wastewater treatment. Continuous treatments of estrogens estrone (E1), 17β-estradiol (E2) and 17α-ethinyl estradiol (EE2) were theoretically and experimentally studied using an electrolytic reactor equipped with a multi-packed granular glassy carbon electrode reactor. Experimental results demonstrated that E1, E2 and EE2 were effectively removed through electro-polymerization on the granular glassy carbon (and Pt/Ti) anode counter. Polymer formed during continuous treatment was quickly decomposed and electrodes were regenerated completely by OH radicals produced through the reduction of ozone. Calculated overall energy consumptions were less than 10Wh/m3, demonstrating extremely low energy consumptions. In addition, a mathematical model developed based on the limiting mass transfer rate and post-regeneration could represent general trends in time series data observed in experiments.
AB - This study proposes a novel electrolytic method for simultaneous removal of trace estrogens and regeneration of electrolytic cells for long-term wastewater treatment. Continuous treatments of estrogens estrone (E1), 17β-estradiol (E2) and 17α-ethinyl estradiol (EE2) were theoretically and experimentally studied using an electrolytic reactor equipped with a multi-packed granular glassy carbon electrode reactor. Experimental results demonstrated that E1, E2 and EE2 were effectively removed through electro-polymerization on the granular glassy carbon (and Pt/Ti) anode counter. Polymer formed during continuous treatment was quickly decomposed and electrodes were regenerated completely by OH radicals produced through the reduction of ozone. Calculated overall energy consumptions were less than 10Wh/m3, demonstrating extremely low energy consumptions. In addition, a mathematical model developed based on the limiting mass transfer rate and post-regeneration could represent general trends in time series data observed in experiments.
KW - Cell regeneration
KW - Continuous treatment
KW - Electro-polymerization
KW - Electrochemical
KW - Endocrine disrupting chemical
KW - Estrogen
UR - http://www.scopus.com/inward/record.url?scp=84919784766&partnerID=8YFLogxK
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U2 - 10.1016/j.jhazmat.2014.12.010
DO - 10.1016/j.jhazmat.2014.12.010
M3 - Article
C2 - 25528228
AN - SCOPUS:84919784766
SN - 0304-3894
VL - 285
SP - 304
EP - 310
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
ER -