Fundamentals of sodium aluminosilicate precipitation

2021 ◽  
Author(s):  
◽  
John Vogrin
2018 ◽  
Vol 33 (1) ◽  
pp. 2-12 ◽  
Author(s):  
N. Tangboriboon ◽  
L. Mulsow ◽  
W. Sangwan ◽  
A. Sirivat

Author(s):  
Yoshitaka Mizuno ◽  
Koji Miyake ◽  
Shunsuke Tanaka ◽  
Norikazu Nishiyama ◽  
Choji Fukuhara ◽  
...  

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2741
Author(s):  
Pengcheng Lv ◽  
Ruihong Meng ◽  
Zhongyang Mao ◽  
Min Deng

In this study, the hydrated sodium aluminosilicate material was synthesized by one-step hydrothermal alkaline desilication using fly ash (FA) as raw material. The synthesized materials were characterized by XRD, XRF, FT-IR and SEM. The characterization results showed that the alkali-soluble desilication successfully had synthesized the sodium aluminosilicate crystalline (N-A-S-H) phase of sodalite-type (SOD), and the modified material had good ionic affinity and adsorption capacity. In order to figure out the suitability of SOD as an adsorbent for the removal of ammonium and phosphorus from wastewater, the effects of material dosing, contact time, ambient pH and initial solute concentration on the simultaneous removal of ammonium and phosphorus are investigated by intermittent adsorption tests. Under the optimal adsorption conditions, the removal rate of ammonium was 73.3%, the removal rate of phosphate was 85.8% and the unit adsorption capacity reached 9.15 mg/L and 2.14 mg/L, respectively. Adsorption kinetic studies showed that the adsorption of ammonium and phosphorus by SOD was consistent with a quasi-secondary kinetic model. The adsorption isotherm analysis showed that the equilibrium data were in good agreement with the Langmuir and Freundlich model. According to thermodynamic calculations, the adsorption of ammonium and phosphorus was found to be a heat-absorbing and spontaneous process. Therefore, the preparation of SOD by modified FA has good adsorption properties as adsorbent and has excellent potential for application in the removal of contaminants from wastewater.


2010 ◽  
Vol 178 (1-3) ◽  
pp. 771-776 ◽  
Author(s):  
B.K. Singh ◽  
Radha Tomar ◽  
Sumit Kumar ◽  
Aishwarya Jain ◽  
B.S. Tomar ◽  
...  

2016 ◽  
Vol 192 ◽  
pp. 235-247 ◽  
Author(s):  
Corinne Claireaux ◽  
Marie-Hélène Chopinet ◽  
Ekaterina Burov ◽  
Emmanuelle Gouillart ◽  
Mathieu Roskosz ◽  
...  

2013 ◽  
Vol 369 ◽  
pp. 61-68 ◽  
Author(s):  
Jonas Kjeldsen ◽  
Morten M. Smedskjaer ◽  
John C. Mauro ◽  
Randall E. Youngman ◽  
Liping Huang ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document