Organic Acid Enhanced Soil Risk Element (Cd, Pb and Zn) Leaching and Secondary Bioconcentration in Water Lettuce (Pistia Stratiotes L.) in the Rhizofiltration Process
作者： Tomáš Veselý , Pavel Tlustoš , Jiřina Száková
DOI: 10.1080/15226514.2011.620650
关键词:
摘要: The use of natural chelates to enhance risk element mobility combined with rhizofiltration by free floating macrophytes have not been thoroughly studied in recent years. aim this study was investigate the efficiency organic acids soil conducting flushing experiments Cd, Pb, and Zn from solution. In addition, bioaccumulation Zn, water lettuce (Pistia stratiotes L.) will be as they affect biomass process. results revealed that citric tartaric mobilised highest amount all elements. comparison control, acid 71%, 181%, 112% while 70%, 155%, 135% respectively. bioconcentration factor approximately 2-5 times higher for juvenile plants than mature treatments well both parts (leaves roots). translocation into aerial decreased increased time. Juvenile proved a high accumulation potential 3 week growth period observed sufficient time remove more 80% Zn.
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