Removal of cadmium from aqueous solutions using industrial coal fly ash-nZVI | Zendy

Lixia Ma | Zendy; Qi Wei | Zendy; Yueqin Chen | Zendy; Qiuyang Song | Zendy; Conghui Sun | Zendy; Zhiqiang Wang | Zendy; Guanghong Wu | Zendy

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Removal of cadmium from aqueous solutions using industrial coal fly ash-nZVI

Author(s) -

Lixia Ma,

Qi Wei,

Yueqin Chen,

Qiuyang Song,

Conghui Sun,

Zhiqiang Wang,

Guanghong Wu

Publication year - 2018

Publication title -

royal society open science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.84

H-Index - 51

ISSN - 2054-5703

DOI - 10.1098/rsos.171051

Subject(s) - fly ash , cadmium , aqueous solution , coal , environmental science , on the fly , environmental chemistry , waste management , chemistry , materials science , metallurgy , computer science , engineering , operating system

Batch experiments were conducted to test the effects of various solution properties, such as pH, temperature, initial concentration and anoxic and aerobic atmosphere, on Cd removal by nanoscale zerovalent iron (nZVI) supported on industrial coal fly ash. Cd (II) could be removed by adsorption on fly ash-nZVI in a very short time (5 min) with high removal rates (greater than 99.9%) over a wide range of concentration (5–100 mg l −1 ). Cd (II) was physically adsorbed on the surface of fly ash-nZVI. The preparation of fly ash-nZVI can incorporate the use of waste media, making the overall adsorbent more removal efficient and low cost.

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