PMID- 23981871
OWN - NLM
STAT- MEDLINE
DCOM- 20131217
LR  - 20130828
IS  - 1477-8920 (Print)
IS  - 1477-8920 (Linking)
VI  - 11
IP  - 3
DP  - 2013 Sep
TI  - Inactivation of Ascaris eggs in water using hydrogen peroxide and a Fenton type 
      nanocatalyst (FeOx/C) synthesized by a novel hybrid production process.
PG  - 419-29
LID - 10.2166/wh.2013.203 [doi]
AB  - Inactivation tests of Ascaris eggs (Ae) were performed using hydrogen peroxide 
      and a Fenton type nanocatalyst supported on activated carbon (AC) (FeOx/C). Blank 
      inactivation tests were also carried out using H2O2 and H2O2/AC as oxidation 
      systems. The FeOx/C nanocatalyst was synthesized through a novel hybrid method 
      developed in this work. The method is based on the incipient impregnation 
      technique, using isopropyl alcohol as dissolvent and chelating agent of the iron 
      salt and the ultrasonic method. The supported nanocatalyst contained 2.61% w/w of 
      total iron and the support 0.2% w/w. Transmission electron microscopy 
      (TEM)-energy dispersive spectrometer (EDS) images permitted verification of the 
      presence of finely dispersed FeOx nanoparticles, with sizes ranging from 19 to 63 
      nm. SEM-EDS analysis and TEM images also showed good dispersion of iron oxide 
      nanoparticles, most probably maghemite; gamma-Fe2O3, able to produce hydroperoxyl 
      radical as reported in the literature. The FeOx/C nanocatalyst-H2O2 system showed 
      an average Ae inactivation efficiency of 4.46% Ae/mg H2O2. This value is 
      significantly higher than the result obtained using the support-H2O2 system and 
      H2O2 alone and it is also better than data reported for the classical Fenton 
      process (homogeneous phase) with or without UV light.
FAU - Morales, Ariadna A
AU  - Morales AA
AD  - Instituto de Ingenieria, Universidad Nacional Autonoma de Mexico, Mexico.
FAU - Schouwenaars, Rafael
AU  - Schouwenaars R
FAU - Pfeiffer, Heriberto
AU  - Pfeiffer H
FAU - Ramirez-Zamora, Rosa Maria
AU  - Ramirez-Zamora RM
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - J Water Health
JT  - Journal of water and health
JID - 101185420
RN  - 0 (Ferric Compounds)
RN  - BBX060AN9V (Hydrogen Peroxide)
SB  - IM
MH  - Animals
MH  - Ascaris suum/*drug effects
MH  - Ferric Compounds/chemical synthesis/*pharmacology
MH  - Hydrogen Peroxide/*pharmacology
MH  - Microscopy, Electron
MH  - Nanoparticles
MH  - Ovum/*drug effects
MH  - Parasite Egg Count
MH  - Water Purification/*methods
EDAT- 2013/08/29 06:00
MHDA- 2013/12/18 06:00
CRDT- 2013/08/29 06:00
PHST- 2013/08/29 06:00 [entrez]
PHST- 2013/08/29 06:00 [pubmed]
PHST- 2013/12/18 06:00 [medline]
AID - 10.2166/wh.2013.203 [doi]
PST - ppublish
SO  - J Water Health. 2013 Sep;11(3):419-29. doi: 10.2166/wh.2013.203.