Paper Title:
Study on Application of Water Granulated Slag in Rare-Earth Ammonia-Nitrogen Wastewater
  Abstract

This paper aims to study the technological conditions and adsorption mechanism of the rare-earth ammonia-nitrogen wastewater adsorption by unmodified water granulated slag and modified water granulated slag. The results showed that the optimum adsorption reaction time is around 60min for both of unmodified and modified slag; the optimum dosage of unmodified slag is 0.015g/mL, whereas it is 0.01g/mL for modified slag, correspondingly, the removal rate of ammonia-nitrogen could attain to (59.9±2.49) % and (79.24±1.21) % associated with unmodified slag and modified slag respectively. The ammonia-nitrogen removing process conducted by unmodified water granulated slag fits the Freundlich adsorption isothermal equation, conforming to physical adsorption. By contrast, the ammonia-nitrogen removing process accomplished by modified water granulated slag fits the Temkin adsorption isothermal equation and this process should be chemical adsorption.

  Info
Periodical
Advanced Materials Research (Volumes 183-185)
Chapter
Environmental Biotechnology
Edited by
Yanguo Shi and Jinlong Zuo
Pages
1178-1184
DOI
10.4028/www.scientific.net/AMR.183-185.1178
Citation
L. R. Chen, F. H. Jia, X. Meng, L. K. Zhang, "Study on Application of Water Granulated Slag in Rare-Earth Ammonia-Nitrogen Wastewater", Advanced Materials Research, Vols. 183-185, pp. 1178-1184, 2011
Online since
January 2011
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Price
$32.00
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