Skip to main content
Log in

Evaluation of the Properties of Diatomaceous Earth in Relation to Their Performance in the Removal of Heavy Metals from Contaminated Effluents

  • Published:
Water, Air, & Soil Pollution Aims and scope Submit manuscript

Abstract

This research analyzes the behavior of different diatomite from Peru, and their potential use for the removal of heavy metals from contaminated effluents. Seven different diatomites were characterized by X-ray diffraction, X-ray fluorescence, scanning electron microscopy, specific surface area, and cation exchange capacity. The absolute removal and the removal efficiency of Cu, Pb, and Zn were assessed by stirring the diatomite in solutions of known concentration of the contaminant, and then analyzing the solutions by atomic absorption spectroscopy (AA). The results were finally correlated with microstructural, chemical, and physicochemical characteristics of the diatomites. It was found that Peruvian diatomites have potential use for decontamination of heavy metals from contaminated effluents even with their low SiO2 content. Affinity for the studied metals was as follows: Zn > Pb > Cu, with removal percentages as higher than 98% for Zn. No one-to-one relationships were found between the removal efficiency of the studied metals with properties of diatomites. Different parameters must be taken into account at the same time to understand the efficiency of metal removal in polluted waters. In this case, the specific surface area and minor oxides have the greatest effect on the removal efficiency of all metals.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9

Similar content being viewed by others

References

Download references

Acknowledgements

A special acknowledgement to Marco Cueto Aservi, Geology Manager of Cementos Pacasmayo SAA, who provided us the samples for this study.

Funding

Some of the authors were supported by grants offered by Innovate Perú 140-PNICP-PIAP-2015.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Jorge I. Tobón.

Additional information

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Marín-Alzate, N., Tobón, J.I., Bertolotti, B. et al. Evaluation of the Properties of Diatomaceous Earth in Relation to Their Performance in the Removal of Heavy Metals from Contaminated Effluents. Water Air Soil Pollut 232, 122 (2021). https://doi.org/10.1007/s11270-021-05045-y

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s11270-021-05045-y

Keywords

Navigation