Skip to main content
Log in

Biochar-assisted Fenton-like oxidation of benzo[a]pyrene-contaminated soil

  • Original Paper
  • Published:
Environmental Geochemistry and Health Aims and scope Submit manuscript

Abstract

In the present study, the biochar derived from sunflower husks was used as a mediator in the heterogeneous Fenton process. The physical and chemical characteristics were studied in terms of specific surface area, elemental contents, surface morphology, surface functional groups, thermal stability, and X-ray crystallography. The main aim was to evaluate the effectiveness of biochar in a heterogeneous Fenton process catalyzed by hematite toward the degradation of benzo[a]pyrene (BaP) in Haplic Chernozem. The Fenton-like reaction was performed at a pH of 7.8 without pH adjustment in chernozem soil. The effects of operating parameters, such as hematite dosage and H2O2 concentrations, were investigated with respect to the removal efficiency of BaP. The overall degradation of 65% was observed at the optimized conditions where 2 mg g−1 hematite and 1.25 M H2O2 corresponded to the H2O2 to Fe ratio of 22:1. Moreover, the biochar amendment showed an increment in the removal efficiency and promotion in the growth of spring barley (Hordeum sativum distichum). The BaP removal was reached 75 and 95% after 2.5 and 5% w/w addition of biochar, respectively. The results suggested that the Fenton-like reaction's effectiveness would be greatly enhanced by the ability of biochar for activation of H2O2 and ejection of the electron to reduce Fe(III) to Fe(II). Finally, the presence of biochar could enhance the soil physicochemical properties, as evidenced by the better growth of Hordeum sativum distichum compared to the soil without biochar. These promising results open up new opportunities toward the application of a modified Fenton reaction with biochar for remediating BaP-polluted soils.

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

Similar content being viewed by others

Data availability

The raw/processed data required to reproduce these findings cannot be shared at this time as the data also forms part of an ongoing study.

References

Download references

Funding

This research was funded by the Russian Science Foundation [project no. 20–14-00317].

Author information

Authors and Affiliations

Authors

Contributions

Mahmoud Mazarji: Data curation, Formal analysis, Methodology, Investigation, Conceptualization, Supervision, Visualization, Writing-original draft preparation-review and editing. Tatiana Minkina: Conceptualization, Supervision, Writing-review and editing. Svetlana Sushkova: Conceptualization, Supervision, Writing-review and editing. Saglara Mandzhieva: Data curation, Methodology, Visualization, Conceptualization, Supervision, Writing-review and editing. Aleksei Fedorenko: Formal analysis, Methodology, Writing-review and editing. Tatiana Bauer: Data curation, Methodology, Visualization, Conceptualization. Alexander Soldatov: Conceptualization, Supervision. Anatoly Barakhov: Investigation, Data curation, Formal analysis, Methodology. Tamara Dudnikova: Investigation, Data curation, Formal analysis, Writing—review and editing, Methodology.

Corresponding author

Correspondence to Mahmoud Mazarji.

Ethics declarations

Conflict of interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Ethical approval

Not applicable since the manuscript has not been involved the use of any animal or human data or tissue.

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

Mazarji, M., Minkina, T., Sushkova, S. et al. Biochar-assisted Fenton-like oxidation of benzo[a]pyrene-contaminated soil. Environ Geochem Health 44, 195–206 (2022). https://doi.org/10.1007/s10653-020-00801-1

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10653-020-00801-1

Keywords

Navigation