Removal of phosphorus using NZVI derived from reducing natural goethite

37Citations
Citations of this article
22Readers
Mendeley users who have this article in their library.
Get full text

Abstract

Nano zero valent iron (NZVI) prepared by reducing natural goethite in hydrogen at 550°C was used to remove phosphate. The effect of particle size, reaction time, NZVI dose, pH, initial phosphorus concentration, and oxygen amount in reaction system on phosphorus removal was investigated. The characterization of X-ray fluorescence (XRF), X-ray diffraction (XRD), N 2 adsorption and desorption (BET analysis), transmission electron microscope (TEM), field emission scanning electron microscope with a energy dispersive X-ray detector (FESEM/EDS) and X-ray photoelectron spectroscopy (XPS) indicated that nanoscale of iron (around 80-150nm length and 5-30nm width) was prepared successfully with high dispersion and relative large surface area around 22m 2 /g. The results of batch experiments and XPS analysis suggested that this kind of NZVI had a good performance on removal of phosphate (over 99%) despite in slightly acidic media as the initial concentration of P was 5mg/L. The reason was ascribed to the effective corrosion of this NZVI under the function of proton and dissolved oxygen in spite of the existence of thin passive films. © 2013 Elsevier B.V.

Cite

CITATION STYLE

APA

Liu, H., Chen, T., Zou, X., Xie, Q., Qing, C., Chen, D., & Frost, R. L. (2013). Removal of phosphorus using NZVI derived from reducing natural goethite. Chemical Engineering Journal, 234, 80–87. https://doi.org/10.1016/j.cej.2013.08.061

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free