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The Use of Plants for Remediation of Metal-Contaminated Soils

Journal Article · · The Scientific World Journal (Online)
DOI:https://doi.org/10.1100/tsw.2004.2· OSTI ID:1629134
 [1];  [2];  [3];  [4];  [3]
  1. Agricultural Univ. of Plovdiv (Bulgaria). Dept. of Plant Physiology and Biochemistry; DOE/OSTI
  2. Ecole Polytechnique Federale Lausanne (Switzerland). Lab. for Environmental Biotechnology
  3. Limburgs Universitair Centrum, Diepenbeek (Belgium). Centre for Environmental Sciences
  4. Brookhaven National Lab. (BNL), Upton, NY (United States). Biology Dept.

The use of green plants to remove, contain, inactivate, or degrade harmful environmental contaminants (generally termed phytoremediation) is an emerging technology. In this paper, an overview is given of existing information concerning the use of plants for the remediation of metal-contaminated soils. Both site decontamination (phytoextraction) and stabilization techniques (phytostabilization) are described. In addition to the plant itself, the use of soil amendments for mobilization (in case of phytoextraction) and immobilization (in case of phytostabilization) is discussed. Also, the economical impacts of changed land-use, eventual valorization of biomass, and cost-benefit aspects of phytoremediation are treated. In spite of the growing public and commercial interest and success, more fundamental research is needed still to better exploit the metabolic diversity of the plants themselves, but also to better understand the complex interactions between metals, soil, plant roots, and micro-organisms (bacteria and mycorrhiza) in the rhizosphere. Further, more demonstration experiments are needed to measure the underlying economics, for public acceptance and last but not least, to convince policy makers.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0012704
OSTI ID:
1629134
Journal Information:
The Scientific World Journal (Online), Journal Name: The Scientific World Journal (Online) Vol. 4; ISSN 1537-744X
Publisher:
HindawiCopyright Statement
Country of Publication:
United States
Language:
English

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