Synthesis and Performance of Chelating Agents-Fly Ash for Heavy Metalions Remove

Abstract:

The flesh ash (F) was grafted with diethylenetriamine (DETAF), triethylenetetramine (TETAF) and polyethylene polyamine (HPAXF), respectively. A comparative study of Cu²⁺ and Pb²⁺ removal from aqueous solution using F, DETAF, TETAF and HPAXF was performed. Effects of liquid-solid ratio, temperature and time on adsorption capacity were studied. Batch tests were carried out to investigate the adsorption performance. The process of Cu²⁺ and Pb²⁺ onto DETAF, TETAF and HPAXF both fitted well with Lagergren pseudo-second-order model, The isothermal of Cu²⁺ and Pb²⁺ adsorption onto DETAF, TETAF and HPAXF can be described by Freundlich model.

• Periodical: Applied Mechanics and Materials (Volumes 522-524)
• Pages: 469-472
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.522-524.469
• Online since: February 2014
• Authors: Yi Wang, Zhuan Nian Liu*, Yang Guan, Long Chen, Zhao Qing Lu
• Keywords: Adsorption, Fly Ash (FA), Heavy Metalions

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