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Phytoextraction of cadmium by Ipomoea aquatica (water spinach) in hydroponic solution: effects of cadmium speciation.
Chemosphere. 2008 Jun; 72(4):666-72.C

Abstract

Phytoextraction is a promising technique to remediate heavy metals from contaminated wastewater. However, the interactions of multi-contaminants are not fully clear. This study employed cadmium, Triton X-100 (TX-100), and EDTA to investigate their interactions on phytotoxicity and Cd phytoextraction of Ipomoea aquatica (water spinach) in simulated wastewater. The Cd speciation was estimated by a chemical equilibrium model and MINEQL+. Statistic regression was applied to evaluate Cd speciation on Cd uptake in shoots and stems of I. aquatica. Results indicated that the root length was a more sensitive parameter than root weight and shoot weight. Root elongation was affected by Cd in the Cd-EDTA solution and TX-100 in the Cd-TX-100 solution. Both the root length and the root biomass were negatively correlated with the total soluble Cd ions. In contrast, Cd phytoextraction of I. aquatic was correlated with the aqueous Cd ions in the free and complex forms rather than in the chelating form. Additionally, the high Cd bioconcentration factors of I. aquatica (375-2227 l kg(-1) for roots, 45-144 l kg(-1) for shoots) imply that I. aquatica is a potential aquatic plant to remediate Cd-contaminated wastewater.

Authors+Show Affiliations

Department of Public Health, Chung-Shan Medical University, Taichung, 402, Taiwan, ROC.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

18471856

Citation

Wang, Kai-Sung, et al. "Phytoextraction of Cadmium By Ipomoea Aquatica (water Spinach) in Hydroponic Solution: Effects of Cadmium Speciation." Chemosphere, vol. 72, no. 4, 2008, pp. 666-72.
Wang KS, Huang LC, Lee HS, et al. Phytoextraction of cadmium by Ipomoea aquatica (water spinach) in hydroponic solution: effects of cadmium speciation. Chemosphere. 2008;72(4):666-72.
Wang, K. S., Huang, L. C., Lee, H. S., Chen, P. Y., & Chang, S. H. (2008). Phytoextraction of cadmium by Ipomoea aquatica (water spinach) in hydroponic solution: effects of cadmium speciation. Chemosphere, 72(4), 666-72. https://doi.org/10.1016/j.chemosphere.2008.03.034
Wang KS, et al. Phytoextraction of Cadmium By Ipomoea Aquatica (water Spinach) in Hydroponic Solution: Effects of Cadmium Speciation. Chemosphere. 2008;72(4):666-72. PubMed PMID: 18471856.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Phytoextraction of cadmium by Ipomoea aquatica (water spinach) in hydroponic solution: effects of cadmium speciation. AU - Wang,Kai-Sung, AU - Huang,Lung-Chiu, AU - Lee,Hong-Shen, AU - Chen,Pai-Ye, AU - Chang,Shih-Hsien, Y1 - 2008/05/08/ PY - 2007/10/15/received PY - 2008/03/18/revised PY - 2008/03/18/accepted PY - 2008/5/13/pubmed PY - 2008/10/4/medline PY - 2008/5/13/entrez SP - 666 EP - 72 JF - Chemosphere JO - Chemosphere VL - 72 IS - 4 N2 - Phytoextraction is a promising technique to remediate heavy metals from contaminated wastewater. However, the interactions of multi-contaminants are not fully clear. This study employed cadmium, Triton X-100 (TX-100), and EDTA to investigate their interactions on phytotoxicity and Cd phytoextraction of Ipomoea aquatica (water spinach) in simulated wastewater. The Cd speciation was estimated by a chemical equilibrium model and MINEQL+. Statistic regression was applied to evaluate Cd speciation on Cd uptake in shoots and stems of I. aquatica. Results indicated that the root length was a more sensitive parameter than root weight and shoot weight. Root elongation was affected by Cd in the Cd-EDTA solution and TX-100 in the Cd-TX-100 solution. Both the root length and the root biomass were negatively correlated with the total soluble Cd ions. In contrast, Cd phytoextraction of I. aquatic was correlated with the aqueous Cd ions in the free and complex forms rather than in the chelating form. Additionally, the high Cd bioconcentration factors of I. aquatica (375-2227 l kg(-1) for roots, 45-144 l kg(-1) for shoots) imply that I. aquatica is a potential aquatic plant to remediate Cd-contaminated wastewater. SN - 0045-6535 UR - https://www.unboundmedicine.com/medline/citation/18471856/Phytoextraction_of_cadmium_by_Ipomoea_aquatica__water_spinach__in_hydroponic_solution:_effects_of_cadmium_speciation_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(08)00405-0 DB - PRIME DP - Unbound Medicine ER -