Prickly pear, potential adsorbent of copper (Cu2+), iron (Fe3+) and chromium (Cr3+) from contaminated waters

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Abstract

The aim of the study was to evaluate the potential of prickly pear cactus cladode (Opuntia ficus) to remove copper (Cu2+), iron (Fe3+) and chromium (Cr3+) from aqueous solutions. Distilled water mixed with Cu2+, Fe3+ or Cr3+ at initial concentrations of 19.60, 16.60 and 17.85 ppm, respectively, were used as media for testing. The aqueous media were treated with two adsorbents: i) a naturally collected cladode (CT), and ii) a cladode chemically modified with calcium (CTCa). The results indicate that a greater metal adsorption is obtained with the CTCa adsorbent. Moreover, 2 hours of contact is enough to remove up to 82.75, 78.36 and 87.84% of Cu2+, Fe3+ and Cr3+, respectively, with respect to their initial concentrations. Our results suggest that the prickly pear cactus cladode might be potentially effective as an eco-friendly adsorbent for removing heavy metals from contaminated waters.

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APA

Morales-Aredo, J., Gamboa-Meregildo, K., & Vejarano, R. (2020). Prickly pear, potential adsorbent of copper (Cu2+), iron (Fe3+) and chromium (Cr3+) from contaminated waters. In Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology. Latin American and Caribbean Consortium of Engineering Institutions. https://doi.org/10.18687/LACCEI2020.1.1.126

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