Chapter 14
Field Study V: Combined Oxidation
Technology Using Ferrates (Fe
IV–VI )
and Hydrogen Peroxide for Rapid
and Effective Remediation of Contaminated
Water—Comprehensive Practically
Focused Study
Petr Lacina and Michal Hegedüs
Abstract Recently, water-soluble compounds of iron in high oxidation states (Fe
IV–
VI
), also known as ferrates, have gained a lot of attention due to their strong oxidation
properties. They can potentially be used for degradation/removal of various compounds from contaminated water. To date, the majority of published papers have
concerned only laboratory-scale use of ferrates in model solutions. Large-scale
applications of ferrates to remediation have proved so far to be rather complicated
as the obtained results failed to meet expectations. Therefore, there is an ongoing
need to consider the suitability of their large-scale use. Further combination with
other oxidizing agents may provide favorable results. The presented research focuses
on laboratory experiments using real groundwater followed by a pilot field application realized as an ex situ experiment and subsequently as in situ remediation.
Ferrates were combined with hydrogen peroxide in order to enhance their removal
efficiency during this pilot remediation test. Such combination proved to be highly
effective achieving 60–80% removal of persistent organic contaminants during the
first 24 h.
Keywords Ferrate · Hydrogen peroxide · Iron compounds · Water treatment ·
Groundwater · Contaminated water · Wastewater · Oxidation technologies · Radical
oxidation
P. Lacina (*) · M. Hegedüs
GEOtest, a.s, Brno, Czech Republic
e-mail: lacina@geotest.cz
© Springer Nature Switzerland AG 2020
J. Filip et al. (eds.), Advanced Nano-Bio Technologies for Water and Soil Treatment,
Applied Environmental Science and Engineering for a Sustainable Future,
https://doi.org/10.1007/978-3-030-29840-1_14
315
Field Study V: Combined Oxidation
Technology Using Ferrates (Fe
IV–VI )
and Hydrogen Peroxide for Rapid
and Effective Remediation of Contaminated
Water—Comprehensive Practically
Focused Study
Petr Lacina and Michal Hegedüs
Abstract Recently, water-soluble compounds of iron in high oxidation states (Fe
IV–
VI
), also known as ferrates, have gained a lot of attention due to their strong oxidation
properties. They can potentially be used for degradation/removal of various compounds from contaminated water. To date, the majority of published papers have
concerned only laboratory-scale use of ferrates in model solutions. Large-scale
applications of ferrates to remediation have proved so far to be rather complicated
as the obtained results failed to meet expectations. Therefore, there is an ongoing
need to consider the suitability of their large-scale use. Further combination with
other oxidizing agents may provide favorable results. The presented research focuses
on laboratory experiments using real groundwater followed by a pilot field application realized as an ex situ experiment and subsequently as in situ remediation.
Ferrates were combined with hydrogen peroxide in order to enhance their removal
efficiency during this pilot remediation test. Such combination proved to be highly
effective achieving 60–80% removal of persistent organic contaminants during the
first 24 h.
Keywords Ferrate · Hydrogen peroxide · Iron compounds · Water treatment ·
Groundwater · Contaminated water · Wastewater · Oxidation technologies · Radical
oxidation
P. Lacina (*) · M. Hegedüs
GEOtest, a.s, Brno, Czech Republic
e-mail: lacina@geotest.cz
© Springer Nature Switzerland AG 2020
J. Filip et al. (eds.), Advanced Nano-Bio Technologies for Water and Soil Treatment,
Applied Environmental Science and Engineering for a Sustainable Future,
https://doi.org/10.1007/978-3-030-29840-1_14
315