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@ARTICLE{Fuentes:172073,
author = {Fuentes, Bárbara and Mora, María de la Luz and Bol,
Roland and San Martin, Francisca and Pérez, Elizabeth and
Cartes, Paula},
title = {{S}orption of inositol hexaphosphate on desert soils},
journal = {Geoderma},
volume = {232-234},
issn = {0016-7061},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2014-05617},
pages = {573 - 580},
year = {2014},
abstract = {Sorption of inositol hexaphosphate (IP6) on desert soils
was studied to evaluate their use as a novel low-cost
sorbent material for organic P removal in water treatment.
The kinetics of IP6 sorption, pH effects, and sorption
isotherms were examined in batch experiments on four desert
saline–sodic soils: Antofagasta (AN), Mejillones (ME),
Aguas Blancas I (ABI), and Aguas Blancas II (ABII). The
sorption kinetics of inositol hexaphosphate expressed as P
(P-IP6) on these soils were described by the Elovich
equation and the initial sorption velocities ranked in the
order: ABII > ABI > ME > AN. In addition, P-IP6 sorption
capacity in AN, ME, and ABI was strongly influenced by the
solution pH, but in ABII it was not pH-dependent. Whereas
the experimental data of P-IP6 sorption on ME, ABI, and ABII
were better fitted by the Langmuir equation (implying a
homogenous distribution of active sorption sites), for AN
the best fit was obtained with the Freundlich model
(implying heterogeneous, multi-layered sorption surfaces).
The maximum P-IP6 sorption capacities ranked: ABII > ME > AN
> ABI. Based on the results of our study, ABII soil is
recommended for P-IP6 removal. In this soil, P-IP6 sorption
did not depend on solution pH, and the precipitation and
sorption of IP6 were associated with Ca2 +, Mg2 +, and
minerals such as montmorillonite and vermiculite.},
cin = {IBG-3},
ddc = {550},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {246 - Modelling and Monitoring Terrestrial Systems: Methods
and Technologies (POF2-246) / 255 - Terrestrial Systems:
From Observation to Prediction (POF3-255)},
pid = {G:(DE-HGF)POF2-246 / G:(DE-HGF)POF3-255},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000340315700055},
doi = {10.1016/j.geoderma.2014.06.016},
url = {https://juser.fz-juelich.de/record/172073},
}