TY - JOUR
T1 - Optimized Production of Coal Fly Ash Derived Synthetic Zeolites for Mercury Removal from Wastewater
AU - Tauanov, Z.
AU - Shah, D.
AU - Itskos, G.
AU - Inglezakis, V.
N1 - Funding Information:
This research work was supported by the Ministry of Education and Science of Kazakhstan. The authors would also like to thank the power stations of Oskemen (East Kazakhstan) and Astana (Central Kazakhstan) cities for generously providing with CFA samples to carry out the studies.
Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2017/10/3
Y1 - 2017/10/3
N2 - Coal fly ash (CFA) derived synthetic zeolites have become popular with recent advances and its ever-expanding range of applications, particularly as an adsorbent for water and gas purification and as a binder or additive in the construction industry and agriculture. Among these applications, perpetual interest has been in utilization of CFA derived synthetic zeolites for removal of heavy metals from wastewater. We herein focus on utilization of locally available CFA for efficient adsorption of mercury from wastewater. To this end, experimental conditions were investigated so that to produce synthetic zeolites from Kazakhstani CFAs with conversion into zeolite up to 78%, which has remarkably high magnetite content. In particular, the effect of synthesis reaction temperature, reaction time, and loading of adsorbent were systematically investigated and optimized. All produced synthetic zeolites and the respective CFAs were characterized using XRD, XRF, PSA and porosimetric instruments to obtain microstructural and mineralogical data. Furthermore, the synthesized zeolites were studied for the removal of mercury from aqueous solutions. A comparison of removal eficiency and its relationship to the physical and chemical properties of the synthetic zeolites were analyzed and interpreted.
AB - Coal fly ash (CFA) derived synthetic zeolites have become popular with recent advances and its ever-expanding range of applications, particularly as an adsorbent for water and gas purification and as a binder or additive in the construction industry and agriculture. Among these applications, perpetual interest has been in utilization of CFA derived synthetic zeolites for removal of heavy metals from wastewater. We herein focus on utilization of locally available CFA for efficient adsorption of mercury from wastewater. To this end, experimental conditions were investigated so that to produce synthetic zeolites from Kazakhstani CFAs with conversion into zeolite up to 78%, which has remarkably high magnetite content. In particular, the effect of synthesis reaction temperature, reaction time, and loading of adsorbent were systematically investigated and optimized. All produced synthetic zeolites and the respective CFAs were characterized using XRD, XRF, PSA and porosimetric instruments to obtain microstructural and mineralogical data. Furthermore, the synthesized zeolites were studied for the removal of mercury from aqueous solutions. A comparison of removal eficiency and its relationship to the physical and chemical properties of the synthetic zeolites were analyzed and interpreted.
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U2 - 10.1088/1757-899X/230/1/012044
DO - 10.1088/1757-899X/230/1/012044
M3 - Conference article
AN - SCOPUS:85033696348
SN - 1757-8981
VL - 230
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012044
T2 - 2017 International Conference on Materials Sciences and Nanomaterials, ICMSN 2017
Y2 - 14 July 2017 through 16 August 2017
ER -