Fly Ash-Activated Carbon Powder Composites for Dyes and Heavy Metals Removal

Abstract:

Advanced wastewater treatment requires highly efficient substrates, able to insure in a single step process the water discharge requirements. The paper the results obtained in the simultaneous removal of heavy metals and dyes, using a composite powder of fly ash and activated carbon. The results show that adding a small amount of activated carbon in a powder mixture with modified fly ash is highly effective in removing cadmium from wastewaters also containing dyes (methylen blue or methyl orange). Chemisorption is the likely mechanism governing this process.

• Periodical: Advanced Materials Research (Volumes 79-82)
• Pages: 243-246
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.79-82.243
• Online since: August 2009
• Authors: Maria Visa, Luminita Isac, Anca Duta
• Keywords: Dye, Fly Ash (FA), Heavy Metal, Wastewater Treatment

References

[1] J.M. Dias, et al., J. Env. Management, Vol. 85 (2007), p.833.

[2] S. Wang, H. Wu, J. Hazard. Mat., Vol. 136 (2006), p.482.

[3] H.S.M. Saad, et al., J. Hazard. Mat., Vol. 162 (2009), in press.

[4] M. Visa, A. Duta, AIChE Annual Meeting, Conf. Proceedings, (2007).

[5] C. Vladuta, et al., Surface and Coatings Technology, Vol. 202 (2008), p.2448.