Phytoremediation for co-contaminated soils of cadmium and pyrene using Phragmites australis (common reed)

Nasreen Jeelani, Wen Yang, Hai Liang Zhu, Shuqing An (Corresponding author)

Publications: Contribution to journalArticlePeer Reviewed

Abstract

Soil contamination is currently the most severe problem as it poses a toxicological impact on human health and ecosystems. A greenhouse experiment was carried out to investigate the effect of 20 and 40 mg kg−1 of cadmium (Cd) or 50 and 100 mg kg−1 of pyrene (PYR) and the combined effect of Cd-PYR on the growth of Phragmites australis together with the uptake and accumulation of Cd as well as removal of PYR. Results demonstrated that the single or co- contaminants of Cd and PYR did not affect plant growth relative to control treatments, except low Cd and high PYR treatment, which showed a significant increase in 91% biomass compared to the control. However, under the joint effect of Cd-PYR, P. australis was unwilling to uptake and translocate Cd, and bioconcentration factor (BCF) and translocation factor (TrF) values were less than one. The removal rate of PYR in the soils and soil enzymes was negatively impacted at the elevated Cd level in the soil. Our study shows that P. australis may have the potential for phytostabilization but cannot be useful for phytoextraction.
Original languageEnglish
Pages (from-to)1385-1395
Number of pages11
JournalInternational Journal of Phytoremediation
Volume22
Issue number13
DOIs
Publication statusPublished - 2020
Externally publishedYes

Austrian Fields of Science 2012

  • 106026 Ecosystem research

Keywords

  • ACCUMULATION
  • Cadmium
  • GROWTH
  • HEAVY-METALS
  • P
  • PHENANTHRENE
  • PHRAGMITES-AUSTRALIS
  • PLANT
  • POLYCYCLIC AROMATIC-HYDROCARBONS
  • REMEDIATION
  • RHIZOSPHERE
  • ZEA-MAYS L.
  • australis
  • phytoremediation
  • pyrene
  • soil co-contamination
  • P. australis

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