Study on Treatment of Ammonia Nitrogen Waste Water by Zeolite-Granule-Adsorbent

Jing Jing Tian; Jun Fang Guan; Chun Jie Yan; Wen Chao Wang; Lin Qiang Hu; Gang Cao

doi:10.4028/www.scientific.net/AMR.668.211

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 668Study on Treatment of Ammonia Nitrogen Waste Water...

Study on Treatment of Ammonia Nitrogen Waste Water by Zeolite-Granule-Adsorbent

Abstract:

This paper focuses on the zeolite-granule-adsorbent(ZGA)’s efficiency of removing ammonium ion. The ZGA shows good performance with up to 73.41% for ammonium removal on the condition of ZGA loading 6g, contact time 6h, initial ammonium concentration 50 mg/L and pH=6. The adsorption kinetics is best approximated by the pseudo-second-order model, whereas the adsorption isotherm results indicated that Langmuir model provides the best fit for the equilibrium data. Furthermore, with regard to thermodynamic parameters, it was found that Gibbs free energy change (ΔG°) −19.31kJ/mol at T=298K, The negative data indicates the spontaneous nature of the adsorption process.

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Periodical:

Advanced Materials Research (Volume 668)

Pages:

211-215

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.668.211

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Online since:

March 2013

Authors:

Jing Jing Tian, Jun Fang Guan, Chun Jie Yan, Wen Chao Wang, Lin Qiang Hu, Gang Cao

Keywords:

Ammonium Removal, Gibbs Free Energy, Isotherm, Kinetic, Zeolite-Granule-Adsorbent

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