Journal ArticleDOI
Phytoextraction: The Use of Plants To Remove Heavy Metals from Soils
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TLDR
The high metal accumulation by some cultivars of B. juncea suggests that these plants may be used to clean up toxic metal-contaminated sites in a process termed phytoextraction.Abstract:
A small number of wild plants which grow on metal contaminated soil accumulate large amounts of heavy metals in their roots and shoots This property may be exploited for soil reclamation if an easily cultivated, high biomass crop plant able to accumulate heavy metals is identified Therefore, the ability of various crop plants to accumulate Pb in shoots and roots was compared While all crop Brassicas tested accumulated Pb, some cultivars of Brassica juncea (L) Czern showed a strong ability to accumulate Pb in roots and to transport Pb to the shoots (1083 mg Pb/g DW in the roots and 345 mg Pb/g DW in the shoots) B juncea was also able to concentrate Cr{sup -6}, Cd, Ni, Zn, and Cu in the shoots 58, 52, 31, 17, and 7 fold, respectively, from a substrate containing sulfates and phosphates as fertilizers The high metal accumulation by some cultivars of B juncea suggests that these plants may be used to clean up toxic metal-contaminated sites in a process termed phytoextractionread more
Citations
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Book ChapterDOI
Overview of phytotechnologies.
TL;DR: This chapter is designed to provide the reader with a broad, introductory overview of phytotechnologies as well as environmental remediation in general.
Journal ArticleDOI
Developing decision support tools for the selection of "gentle" remediation approaches.
Kene Onwubuya,Andrew B. Cundy,Markus Puschenreiter,Jurate Kumpiene,Brian D. Bone,Jon Greaves,Phillip Teasdale,Michel Mench,Pavel Tlustoš,Sergey V. Mikhalovsky,S. Waite,Wolfgang Friesl-Hanl,Bernd Marschner,Ingo Müller +13 more
TL;DR: It is proposed that decision support which focuses on gentle remediation is more strongly incorporated into existing, well-established (national) decision support tools / decision-frameworks, to promote more widespread use and uptake.
Journal ArticleDOI
Uptake of cesium-137 and strontium-90 from contaminated soil by three plant species; application to phytoremediation.
TL;DR: There was a linear relationship between the 137Cs concentration in plants and its concentration in soil only for redroot pigweed, and estimates of time required for removal of 50% of the two contaminants are 7 yr for 90Sr and 18 yr for 137Cs.
Journal ArticleDOI
Phytoextraction of trace elements and physiological changes in Indian mustard plants (Brassica nigra L.) grown in post methanated distillery effluent (PMDE) irrigated soil.
TL;DR: It is revealed that Indian mustard plants (B. nigra L.) are well adopted to tolerate and accumulate high quantities of trace elements due to increased level of antioxidants (cysteine and ascorbic acid) in root, shoot and leaves of the treated plants at all the concentrations and exposure periods except at 90 days.
Journal ArticleDOI
Short-rotation coppice of willow for phytoremediation of a metal-contaminated agricultural area: a sustainability assessment.
Nele Witters,Stijn Van Slycken,Ann Ruttens,Kristin Adriaensen,Erik Meers,Linda Meiresonne,Filip Tack,Theo Thewys,Erik Laes,Jaco Vangronsveld +9 more
TL;DR: In this paper, the authors compared SRC of willow with rapeseed and energy maize regarding four attributes: metal accumulation capacity, gross agricultural income per hectare, CO2 emission avoidance potential, and agricultural acceptance.