Electrochemical oxidation of surfactants as an essential step to enable greywater reuse

Alexsandro J. dos Santos, Hongchen Shen, Marcos R.V. Lanza, Qilin Li, Sergi Garcia-Segura

Research output: Contribution to journalArticlepeer-review

Abstract

The practical application of electrochemical oxidation technology for the removal of surfactants from greywater was evaluated using sodium dodecyl sulfate (SDS) as a model surfactant. Careful selection of electrocatalysts and optimization of operational parameters demonstrated effective SDS removal in treating a complex greywater matrix with energy consumption below 1 kWh g−1 COD (Chemical Oxygen Demand), paving the way for a more sustainable approach to achieving surfactant removal in greywater treatment when aiming for decentralized water reuse. Chromatographic techniques identified carboxylic acids as key byproducts prior to complete mineralization. These innovative approaches represent a novel pathway for harnessing electrochemical technologies within decentralized compact devices, offering a promising avenue for further advancements in this field.

Original languageEnglish (US)
Article number103563
JournalEnvironmental Technology and Innovation
Volume34
DOIs
StatePublished - May 2024

Keywords

  • Electrochemical advanced oxidation processes
  • Greywater
  • Sodium dodecyl sulfate
  • Water reuse
  • Water treatment

ASJC Scopus subject areas

  • General Environmental Science
  • Soil Science
  • Plant Science

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