• 文献标题:   Removal of micropollutants from municipal wastewater by graphene adsorption and simultaneous electrocoagulation/electrofiltration process
  • 文献类型:   Article
  • 作  者:   YANG GCC, TANG PL, YEN CH
  • 作者关键词:   electrocoagulation, electrofiltration, emerging contaminant, graphene adsorption, municipal wastewater
  • 出版物名称:   WATER SCIENCE TECHNOLOGY
  • ISSN:   0273-1223 EI 1996-9732
  • 通讯作者地址:   Natl Sun Yat Sen Univ
  • 被引频次:   2
  • DOI:   10.2166/wst.2017.074
  • 出版年:   2017

▎ 摘  要

In this work the optimal operating conditions for removing selected micropollutants (also known as emerging contaminants, ECs) from actual municipal wastewater by graphene adsorption (GA) and simultaneous electrocoagulation/electrofiltration (EC/EF) process, respectively, were first determined and evaluated. Then, performance and mechanisms for the removal of selected phthalates and pharmaceuticals from municipal wastewater simultaneously by the GA and EC/EF process were further assessed. ECs of concern included di-n-butyl phthalate (DnBP), di-(2-ethylhexyl) phthalate (DEHP), acetaminophen (ACE), caffeine (CAF), cefalexin (CLX) and sulfamethoxazole (SMX). It was found that GA plus EC/EF process yielded the following removal efficiencies: DnBP, 89 +/- 2%; DEHP, 85 +/- 3%; ACE, 99 +/- 2%; CAF, 94 +/- 3%; CLX, 100 +/- 0%; and SMX, 98 +/- 2%. Carbon adsorption, size exclusion, electrostatic repulsion, electrocoagulation, and electrofiltration were considered as the main mechanisms for the removal of target ECs by the integrated process indicated above.