Removal of Perfluorinated Compounds From Water using Nanoscale Zero-Valent Iron

Olga S. Arvaniti, Yuhoon Hwang, Henrik Rasmus Andersen, Thomaidis S. Nikolaos, Stasinakis S. Athanasios

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

268 Downloads (Pure)

Abstract

Perfluorinated Compounds (PFCs) are persistent micropollutants that have been detected in various environmental and biological matrices, worldwide. During the last decade, these compounds have also been detected in municipal wastewater and tap water. Due to the stability of C-F bond, the application of biological and conventional physicochemical treatment methods does not seem to remove sufficient these compounds from water and wastewater. In the current study, the removal efficiency of four PFCs using three different types of nanoscale zero-valent iron (nZVI) was investigated. Influencing factors such as, initial pH solution, reaction temperature and nZVI dosage were also studied. According to the results, target compounds were removed in the presence of chemically synthesized nZVI modified with Mg-aminoclay (MgAC) than under commercial iron powder and chemically synthesized uncoated nZVI, under the same experimental conditions. Removal efficiencies of PFCs using MgAC coated nZVI were enhanced under acidic conditions and lower reaction temperature, as well as nZVI concentration increased. Based on removal mechanism experiments, it was demonstrated that PFCs removal can be accomplished by simultaneous sorption and degradation. Although the production of F- was observed to aqueous solution, no formation of byproducts was detected.
Original languageEnglish
Publication date2014
Number of pages5
Publication statusPublished - 2014
EventSingapore international Water Week - , Singapore
Duration: 1 Jun 20145 Jun 2014

Conference

ConferenceSingapore international Water Week
CountrySingapore
Period01/06/201405/06/2014

Keywords

  • PFCs
  • Nanoscale zero-valent iron
  • Mechanism reaction
  • Removal

Fingerprint

Dive into the research topics of 'Removal of Perfluorinated Compounds From Water using Nanoscale Zero-Valent Iron'. Together they form a unique fingerprint.

Cite this