通过聚合和电解槽再生对雌激素进行连续处理。

Continuous treatments of estrogens through polymerization and regeneration of electrolytic cells.

机构信息

Department of Civil and Environmental Engineering, Waseda University, Tokyo 169-8555, Japan.

出版信息

J Hazard Mater. 2015 Mar 21;285:304-10. doi: 10.1016/j.jhazmat.2014.12.010. Epub 2014 Dec 11.

DOI:10.1016/j.jhazmat.2014.12.010

Abstract

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 10 Wh/m(3), 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.

摘要

本研究提出了一种新颖的电解方法，用于同时去除痕量雌激素和再生用于长期废水处理的电解池。使用配备有多填充颗粒状玻璃碳电极反应器的电解反应器，从理论和实验上研究了雌激素雌酮（E1）、17β-雌二醇（E2）和 17α-乙炔基雌二醇（EE2）的连续处理。实验结果表明，通过在颗粒状玻璃碳（和 Pt/Ti）阳极上的电聚合，可以有效地去除 E1、E2 和 EE2。在连续处理过程中形成的聚合物通过臭氧还原产生的˙OH 自由基迅速分解，并且电极完全再生。计算出的总能耗小于 10 Wh/m³，表明能耗极低。此外，基于极限传质速率和后再生开发的数学模型可以表示实验中观察到的时间序列数据的一般趋势。