Journal ArticleDOI
Phytoextraction: The Use of Plants To Remove Heavy Metals from Soils
Reads0
Chats0
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
More filters
Journal ArticleDOI
Zinc Accumulation in Indian Mustard as Influenced by Nitrogen and Phosphorus Nutrition
TL;DR: In this paper, the effects of nitrogen (N) and phosphorus (P) supply on growth and Zn accumulation by Indian mustard (Brassica juncea Czern.) under simulated Zn-contaminated conditions were determined.
Journal ArticleDOI
Enhanced phytoremediation of uranium contaminated soil by artificially constructed plant community plots
TL;DR: Three uranium accumulators including Bamboo-willow, Paspalum scrobiculatum linn and Macleaya cordata were used to construct four artificial plant community plots, and greenhouse experiments were conducted to investigate the bioaccumulation of uranium by the plants and the organic acid content, enzyme activity, and the change of microbial community structure in their rhizosphere soils.
Journal ArticleDOI
Chelator-induced phytoextraction of zinc and copper by rice seedlings
TL;DR: Results obtained indicated that synthetic aminopolycarboxylic acids decreased uptake of metals by rice seedlings, but translocation of metals complexed within plant materials was evident, which had important implication for the use of biodegradable metal chelators in transport of essential micronutrients in plant nutrition.
Book ChapterDOI
Phytoremediation of Copper- Contaminated Soil
TL;DR: Soil remediation consists of actions of removal, control, containment, or reduction of contaminants in soil to a level safe for human health and the environment as mentioned in this paper, when the level of soil contamination is too high and dangerous for humans and animals it should be reduced.
Journal Article
Farm-based measures for reducing human and environmental health risks from chemical constituents in wastewater
TL;DR: Drechsel et al. as mentioned in this paper assessed and mitigated risk in low-income countries by assessing and mitigating risk in wastewater irrigation and health in a low-resource environment.