Paper Title:
The Diatomite Modified by PAM and Applied to Adsorb Pb(II) in the Simulated Wastewater
  Abstract

A study of the modified diatomite prepared by the PAM coated on the surface of the raw diatomite and applied to treat the simulated wastewater with intensive concentration of lead ions [Pb(Ⅱ)]. Pb(Ⅱ) has been considered as one of some significantly toxic heavymetals (Cd,Cr,Pb, Mn,Cu,Zn,et al) contaminated the surfacewaters. The results indicated that modification could enhance the diatomite and acidic heavymetal wastewater’s compatibility; Obtained that modified diatomite’s saturated adsorption capacity could reach 66.15~ 68.95mg/g, superior to raw one; At the same time, the comparation of four common adsorbents and modified diatomite’s adsorption capacity under some given conditions showed: modified diatomite > zeolite > vermiculite > raw diatomite > red soil; Observed by SEM, PAM molecule arrayed on the diatomite’s surface smoothly that improved its interior structure and the charge on the surface, even enhanced the sedimentation performance of the diatomite in heavymetal wastewater.

  Info
Periodical
Advanced Materials Research (Volumes 233-235)
Edited by
Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He
Pages
382-389
DOI
10.4028/www.scientific.net/AMR.233-235.382
Citation
W. Yang, P. Wang, W. L. Luo, J. Zhu, Y. Zhang, "The Diatomite Modified by PAM and Applied to Adsorb Pb(II) in the Simulated Wastewater", Advanced Materials Research, Vols. 233-235, pp. 382-389, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Guo Ri Dong, Yan Zhang
Chapter 2: Applied Materials and Environmental Application
Abstract:Diatomite plays a very important role in sewage adsorption and especially has vast prospect in adsorbing heavy metal ions. The paper, on the...
664