title: The effect of EDDS addition on the phytoextraction efficiency from Pb contaminated soil by Sedum alfredii Hance.
abstract: Present study reports the results of three pot experiments, conducted to investigate the chelate-assisted phytoextraction of Pb contaminated soils. The optimum phytoextraction was observed when 2.5mM ethylene diamine disuccinic acid (EDDS) was added in single dosage for 14 days to low Pb soil (treated with 400 mg kg(-1)soil). On the contrary, for high Pb soil (treated with 1200 mg kg(-1)soil), 5mM EDDS concentration in single dosage for 10 days produced better results. Post-harvest effects of EDDS on the concentrations of available Pb and dissolved organic carbon (DOC) were significantly higher as compared with check (CK i.e. without EDDS addition), and consequently decreased with the passage of time. Our results suggested that chelate-assisted phytoextraction was more suitable for slightly contaminated soils.
authors.affiliation: Zhejiang Forestry University, College of Landscape Architecture, Lin'an, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Wang
authors.forename: Ying
authors.initials: Y
authors.lastname: Wang
authors.forename: Qaisar
authors.initials: Q
authors.lastname: Mahmood
authors.forename: Ejazul
authors.initials: E
authors.lastname: Islam
authors.forename: Xiaofen
authors.initials: X
authors.lastname: Jin
authors.forename: Tingqiang
authors.initials: T
authors.lastname: Li
authors.forename: Xiaoe
authors.initials: X
authors.lastname: Yang
authors.forename: Dan
authors.initials: D
authors.lastname: Liu
mesh_terms: D001673:Biodegradation, Environmental; D002614:Chelating Agents; D005029:Ethylenediamines; D007854:Lead / Q000302:isolation & purification / Q000378:metabolism*; D031963:Sedum / Q000378:metabolism*; D012989:Soil Pollutants / Q000302:isolation & purification / Q000378:metabolism*; D013386:Succinates
chemical_list: C499100:(S,S)-ethylenediaminedisuccinate; D002614:Chelating Agents; D005029:Ethylenediamines; D012989:Soil Pollutants; D013386:Succinates; D007854:Lead