Agronomic and economic evaluation of Vetiver grass (Vetiveria zizanioides L.) as means for phytoremediation of diesel polluted soils in Israel

Nativ Dudai, Itai Tsion, Shiri Zemah Shamir, Nadav Nitzan, David Chaimovitsh, Alona Shachter, Abraham Haim

Research output: Contribution to journalArticlepeer-review

Abstract

Soil pollution in Israel, due to diesel contamination, is a major concern, with gas stations, factories and refineries being the main polluters (>60%). Vetiver grass (Vetiveria zizanioides L.) is a perennial grass belonging to the Poaceae family, and is recognized world-wide for its potential as a plant with phytoremediation traits to contaminated soils. It is demonstrated here to decrease diesel contamination in field and court-yard trials. Chemical soil analysis indicated up to a 79% decrease (P <.05) in diesel pollution of contaminated soil planted with Vetiver; and at high soil contamination levels of 10 L/m2, a significant (P <.05) reduction of 96, 96 and 87% was recorded at soil depths of 0–20, 20–40 and 40–60 cm, respectively. Furthermore, in field plots contaminated with diesel and planted with Vetiver, weeds’ biomass recovered to non-polluted levels following 8 to 9 months of Vetiver treatment. An economic evaluation conducted based on the cost-benefit analysis (CBA) principles, utilizing the Net Present Value (NPV) compared phytoremediation to other currently used decontamination procedures. The economic comparison showed that phytoremediation cleanup costs are lower and more beneficial to society at large, primarily from an ecosystem services perspective. Combining the results of the agronomic examination with the economic valuation, this research pointed out that phytoremediation with Vetiver has a non-negligible potential, making it a good solution for cleansing diesel from soils on a state-wide scale in Israel and worthy of further research and development.

Original languageEnglish
Pages (from-to)247-255
Number of pages9
JournalJournal of Environmental Management
Volume211
DOIs
StatePublished - 1 Apr 2018
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2018 Elsevier Ltd

Keywords

  • Diesel
  • Phytoremediation
  • Soil contamination
  • Vetiver grass (Vetiveria zizanioides L.)

ASJC Scopus subject areas

  • Waste Management and Disposal
  • Management, Monitoring, Policy and Law
  • Environmental Engineering

Fingerprint

Dive into the research topics of 'Agronomic and economic evaluation of Vetiver grass (Vetiveria zizanioides L.) as means for phytoremediation of diesel polluted soils in Israel'. Together they form a unique fingerprint.

Cite this