Title: Woody biomass phytoremediation of contaminated brownfield land 
Resource Type: document --> technical publication --> journal article 
Country: United Kingdom 
Year: 2007 
Availability: Environmental Pollution 141, 387-395 
Author 1/Producer: French, C.J. 
Other Authors/Producers: Dickinson N.M. and Putwain, P.D. 
Author / Producer Type: University research group / research institute 
Article Weblink (=direct link): http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V ...  
EUGRIS Keyword(s): Contaminated land-->Remediation options-->In situ treatment technologies
Short description: Extract: Economic and environmental regeneration of post-industrial landscapes frequently involves some element of re-afforestation or tree planting. We report field trials that evaluate whether woody biomass production is compatible with managing residual trace element contamination in brownfield soils. Large-scale mapping of contamination showed a heterogenous dispersion of metals and arsenic, and highly localised within-site hotspots. Yields of Salix, Populus and Alnus were economically viable, showing that short-rotation coppice has a potentially valuable role in community forestry. Mass balance modelling demonstrated that phytoextraction potentially could reduce contamination hotspots of more mobile elements (Cd and Zn) within a 25–30-year life cycle of the crops. Cd and Zn in stems and foliage of Salix were 4–13 times higher than EDTA-extractable soil concentrations. Lability of other trace elements (As, Pb, Cu, Ni) was not increased 3 years after planting the coppice; woody biomass may provide an effective reduction of exposure (phytostabilisation) to these less mobile contaminants. 
Submitted By: Professor Paul Bardos WhoDoesWhat?      Last update: 21/04/2008

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