Paper Title:
Research on Producing New Ceramic Filter Media Modified at Surface and its Application in Pre-Treating Slightly-Polluted Water
  Abstract

Using Fe (NO3)3 as modifying agent, a new porous environmental ceramic filter is modified at surface to pre-treat slightly-polluted water. It can effectively reduce organic substances in subsequent processes, thus enhance the quality of water output. The iron oxide / modified ceramic filter media was manufactured by heating vaporization, and the optimal modification conditions were as follows: pH value is seven, Fe (NO3)3 density is 2mol/L, and roasting temperature is 550 centigrade. Compared with plain ceramic filter media, the removal rate of COD was enhanced six to eight times. The surface morphology of filter media was inspected by SEM, which showed that the iron oxide film, being fine particles, was attached to the ceramic filter. This is beneficial for enhancing adsorption capability. The matter species of iron oxide film were analyzed by XRD, result showed that it contains α-Fe2O3 and α-FeOOH, which is helpful for adsorbing and removing organic substances in water.

  Info
Periodical
Chapter
Chapter 7: Building Materials
Edited by
Paul P. Lin and Chunliang Zhang
Pages
1736-1741
DOI
10.4028/www.scientific.net/AMM.105-107.1736
Citation
Y. Q. Zhang, M. Li, "Research on Producing New Ceramic Filter Media Modified at Surface and its Application in Pre-Treating Slightly-Polluted Water", Applied Mechanics and Materials, Vols. 105-107, pp. 1736-1741, 2012
Online since
September 2011
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Price
$32.00
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