Geopolymer Materials Treatment of Calcium Arsenate Waste for Arsenic Immobilization

Zhong Qiu Luo; Shou Qing Liu; Zhao Shu Zhang; Xin Tao Zhou; Ju Pei Xia

doi:10.4028/www.scientific.net/AMR.997.500

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 997Geopolymer Materials Treatment of Calcium Arsenate...

Geopolymer Materials Treatment of Calcium Arsenate Waste for Arsenic Immobilization

Abstract:

The calcium arsenate waste, containing amounts of arsenic (7.62 wt%), was treated using solidification/stabilization technology (S/S) with geopolymer. In order to optimize the procedure for S/S, 9 different S/S samples, differing in amount of the geopolymer materials were prepared. On these samples, extraction tests were performed, showing that the arsenic concentration in the leachate was less than the China countermeasure standard (5 mg/l) after 28 days of curing when a geopolymer (GP) dosages more than 30 wt%. Furthermore, the samples showed substantially decreasing leachability with curing times. But there was no appreciable change in leachability under various time and pH conditions.

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Periodical:

Advanced Materials Research (Volume 997)

Pages:

500-503

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.997.500

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Online since:

August 2014

Authors:

Zhong Qiu Luo, Shou Qing Liu, Zhao Shu Zhang, Xin Tao Zhou*, Ju Pei Xia

Keywords:

Calcium Arsenate Waste, Geopolymer Materials, Stabilization/Solidification

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* - Corresponding Author

References

[1] Joseph Davidovits, Properties of Geopolymer Cements, Proceedings first international conference on alkaline, Cement and Concrete. 25 (1994) 131-149.

Google Scholar

[2] L. Zheng, W. Wang, Y. Shi, The effects of alkaline dosage and Si/Al ratio on the immobilization of heavy metals in municipal solid waste incineration fly ash-based geopolymer, Chemosphere. 79 (2010) 665-671.

DOI: 10.1016/j.chemosphere.2010.02.018

Google Scholar

[3] K. Al-Zboon, M. S. Al-Harahsheh, F. B. Hani, Fly ash-based geopolymer for Pb removal from aqueous solution, J. Hazard. Mater. 188 (2011) 414-421.

DOI: 10.1016/j.jhazmat.2011.01.133

Google Scholar

[4] Z. Yunsheng, S. Wei, C. Qianli, et al., Synthesis and heavy metal immobilization behaviors of slag based geopolymer, J. Hazard. Mater. 143 (2007) 206-213.

DOI: 10.1016/j.jhazmat.2006.09.033

Google Scholar

[5] C. Fernández Pereira, Y. Luna, X. Querol, et al., Waste stabilization/solidification of an electric arc furnace dust using fly ash-based geopolymers, Fuel. 88 (2009) 1185-1193.

DOI: 10.1016/j.fuel.2008.01.021

Google Scholar

[6] O. Peyronnard, M. Benzaazoua, D. Blanc, et al., Study of mineralogy and leaching behavior of stabilized/solidified sludge using differential acid neutralization analysis, Cement Concrete Res. 39 (2009) 600-609.

DOI: 10.1016/j.cemconres.2009.03.016

Google Scholar

[7] F. K. C. Humayoun Akhter, Amitava Roy, Marty E. Tittlebaum, Solidification/stabilization of arsenic salts: Effects of long cure times, J. Hazard. Mater. 52 (1997) 247-264.

DOI: 10.1016/s0304-3894(96)01811-0

Google Scholar