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Arsenic Removal from Contaminated Soil by Phytoremediation Combined with Chemical Immobilization

  • Saki Arita
  • Masahiko Katoh
Conference paper
Part of the Environmental Science and Engineering book series (ESE)

Abstract

We have designed a new phytoremediation technique called phytosuction separation (PS-S). To date, it has indicated that the PS-S can remove antimony 69–533 times higher than that removed by phytoextraction (PE). However, it should be deeply investigated that PS-S can effectively remove the metalloid other than antimony. Arsenic-contaminated soil was used in this study. Ferryhydrite synthesized in the laboratory was used as an immobilization material. Four treatments for PS-S were prepared changing the amount of contaminated soil put in the pot: 1.6, 1.0, 0.5, 0.2 cm soil depth, respectively. The removal ratios of PS-S system were higher than that of PE despite the soil depth of PS-S system. The removal ratios of PS-S system increased with the decrease in the soil depth, indicating that the PS-S system could remove arsenic from less than 0.5 cm soil layer. This study indicates that the PS-S system can remove arsenic from the contaminated soil compared with PE, and it can be more effective with more shallow soil layer.

Keywords

Arsenic removal Phytoremediation Phytosuction separation Soil pollution Soil remediation 

References

  1. Ensley BD (2000) In: Raskin I, Ensley BD (eds) Phytoremediation of toxic metals. Willey, New YorkGoogle Scholar
  2. Freitas EV, Nascimento CW, Souza A, Silva FB (2013) Citric acid-assisted phytoextraction of lead: a field experiment. Chemosphere 92:213–217CrossRefGoogle Scholar
  3. Katoh M, Hashimoto K, Sato T (2016) Lead and antimony removal from contaminated soil by phytoremediation combined with an immobilization material. CLEAN–Soil Air Water 44:1717–1724CrossRefGoogle Scholar
  4. Richmond WR, Loan M, Morton J, Parkinson GM (2004) Arsenic removal from aqueous solution via ferrihydrite crystallization control. Environ Sci Technol 38:2368–2372CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Department of Agricultural ChemistryMeiji UniversityKanagawaJapan

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