Magnetic Removal of Phosphate from Wastewater Using Schwertmannite

@article{Eskandarpour2006MagneticRO,
  title={Magnetic Removal of Phosphate from Wastewater Using Schwertmannite},
  author={A. Eskandarpour and K. Sassa and Y. Bando and M. Okido and S. Asai},
  journal={Materials Transactions},
  year={2006},
  volume={47},
  pages={1832-1837}
}
A magnetic filtration has firstly been applied to the phosphate removal from wastewater by using schwertmannite, which is ferric oxyhydroxide sulfate with high capacity of phosphate adsorption. High efficiency of phosphate removal without using magnetic seeding was obtained at magnetic intensities of around 1 Tesla, which means no necessity to use a superconducting magnet. The kinetics data of phosphate adsorption have been found to be fitted well with a pseudo-second-order model and adsorption… Expand
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References

SHOWING 1-10 OF 26 REFERENCES
Recycling Fe(III)/Cr(III) hydroxide, an industrial solid waste for the removal of phosphate from water.
TLDR
Industrial solid waste, Fe(III)/Cr(III) hydroxide, was investigated and Kinetic studies show that the adsorption obeyed second order kinetics. Expand
Phosphate removal by high-gradient magnetic filtration using permanent magnets
On the basis of rare-earth permanent magnets, a second prototype of a carousel magnetic filter has been constructed for a 'third-stage' phosphate elimination from municipal sewage. As compared to theExpand
Sorption Kinetics of Arsenic onto Iron-Conditioned Zeolite
Iron-conditioned zeolite was prepared and used in arsenic removal from groundwater at pH 7.8 ± 0.2 and temperature 293 ± 1 K. The effects of initial arsenic concentration and intermittent agitationExpand
Adsorption Kinetics of Arsenic Removal from Groundwater by Iron-Modified Zeolite
This work involves the treatment of model groundwater containing arsenic with the use of chemically modified zeolite. A finite volume stirred tank reactor was used to study the effects of theExpand
Coprecipitation of phosphate with calcite in the presence of photosynthesizing green algae
TLDR
The calculated values of the maximum surface density of coprecipitated phosphate are in good agreement with those from abiotic conditions, which indicates that the same mechanism is in operation. Expand
Effect of urea on the stability of ferric oxide hydrosols
The effect of urea on the stability of α-haematite hydrosols was studied in the presence of various monovalents ions on each side of the point of zero charge (PZC) (pH 8.2). It was observed that forExpand
New Magnetic Field-Enhanced Process for the Treatment of Aqueous Wastes
ABSTRACT A new magnetic adsorbent material, called magnetic polyamine-epichlorohydrin (MPE) resin, was prepared by attaching activated magnetite to the outer surface of polyamine-epichlorohydrinExpand
Phosphorus adsorption on natural sediments: modeling and effects of pH and sediment composition.
TLDR
The fact that the amount of P sorbed and zeta potential of sediment particles have no necessary relationship reveals that a strong contribution to the P binding still comes from a ligand-exchange process on the Me- OH(2+) and Me-OH sites rather than electrostatic attraction. Expand
Magnetite seeded precipitation of phosphate.
TLDR
It was concluded that the pH dependence of magnetite-seeded precipitation should be considered in the light of its effect on the supersaturated conditions of solution, and a good relationship between SI of solution with respect to HAP and the magnetite seeded precipitation efficiency was found. Expand
The kinetics of sorption of divalent metal ions onto sphagnum moss peat
A pseudo-second order rate equation describing the kinetics of sorption of divalent metal ions onto sphagnum moss peat at diAerent initial metal ion concentrations and peat doses has been developed.Expand
...
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