Phytoremediation of heavy metal and PAH-contaminated brownfield sites - PowerPoint PPT Presentation

1 / 17
About This Presentation
Title:

Phytoremediation of heavy metal and PAH-contaminated brownfield sites

Description:

Phytoremediation of heavy metal and PAH-contaminated brownfield sites S bastien Roy, et al. 2004 Plant and Soil 272: 277-290 Background Information Use of plants to ... – PowerPoint PPT presentation

Number of Views:1297
Avg rating:3.0/5.0
Slides: 18
Provided by: KaraMi2
Category:

less

Transcript and Presenter's Notes

Title: Phytoremediation of heavy metal and PAH-contaminated brownfield sites


1
Phytoremediation of heavy metal and
PAH-contaminated brownfield sites
  • Sébastien Roy, et al. 2004
  • Plant and Soil
  • 272 277-290

2
Background Information
  • Use of plants to clean up pollutants in
    environment
  • Set of technologies that use different plants for
    techniques
  • Containment, destruction, extraction,
    transpiration

3
Phytoremediation Diagram
4
Pros and Cons of Phytoremediation
5
Goals of this paper
  • Assess heavy metal phytoextraction performance
    from alkaline soils
  • Assess the impact of phytoextraction plants on
    rhizosphere communities

6
Materials and Methods
  • Soil excavation
  • Alkaline soils contaminated with metals and PAHs
  • Indian mustard, willow, and fescue
  • Chosen because they can extract heavy-metals and
    grow on the tested soils
  • Pot Trials
  • Chelating agent EDTA

7
Materials and Methods
  • Heavy metal analysis
  • Roots and aerial
  • Microbial enumerations
  • Plate count
  • Community DNA extraction and DGGE
  • 13 samples, characterized diversity

8
Results
Indian mustard
Willow
Fescue
Figure 1
Figure 2
9
Results
10
Results
11
(No Transcript)
12
Results
13
Results
14
Discussion
  • Heavy metal accumulations
  • Preferred Harvests
  • Plant mixtures
  • Rhizosphere populations
  • PAH degradation
  • Usefulness of study for projections

15
Conclusion
  • Phytoremediation
  • can offer a feasible alternative for restoration
  • can take a long time with many harvests
  • is an important tool for controlling contaminant
    migration

16
Questions???
17
Sources
  • Becker, Hank. Phytoremediation Using Plants to
    Clean Up
  • Soils. Agricultural Research Magazine. June
    2000 Vol. 48, No. 6. http//www.ars.usda.gov/is/
    AR/archive/jun00/soil0600.htm
  • National Risk Management Research Laboratory,
    USEPA. Introduction to Phytoremediation.
  • http//clu-in.org/download/remed/introphyto.pdf
  • Roy, Sebastien, et al. Phytoremediation of heavy
    metal and PAH-contaminated brownfield sites.
    Plant and Soil (2005) 272 277-290.
Write a Comment
User Comments (0)
About PowerShow.com