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EDTA-EnhancedPhytoremediation ofHeavy Metals: AReview Muhammad ShahidAnnabelle AustruyGuillaume Echevarria2013 год

EDTA-Enhanced Phytoremediation of Heavy Metals: A Review
review

Страница публикацииПубликация в OpenAlex
Аннотация: Abstract The increase in heavy metal terrestrial ecosystems' contamination through anthropogenic activities is a widespread and serious global problem due to their various environmental and human implications. For these reasons, several techniques, including phytoremediation of heavy metals, have been extensively studied. In spite of significant recent advancement, ethylene diamine tetraacetic acid (EDTA)-enhanced heavy metal phytoextraction as well as related ecological risks are still topical and remain an important area of research. In fact, EDTA favors the solubilization of metals and metalloids in soils, and was therefore extensively studied during the last two decades in order to improve phytoextraction efficiency and reduce treatment duration. This review highlights the recent findings (2010–2012) and mechanisms behind EDTA-enhanced (1) solubilization of heavy metals in soil, (2) mobilization/transport of soluble metals towards plant root zone, and (3) metal absorption by plant roots and translocation towards aerial parts. The review also presents potential risks associated with EDTA-enhanced phytoextraction: (1) environmental persistence of EDTA and/or metal-EDTA complex; (2) potential toxicity of EDTA and/or metal-EDTA complex to plants; and (3) leaching and contamination of groundwater. Moreover, field-scale cost of EDTA-enhanced remediation and the role of EDTA in time required for heavy metal remediation is discussed. Keywords: EDTAheavy metalsmobilizationphytoextractionspeciation Acknowledgments The authors thank the Higher Education Commission of Pakistan (www.hec.gov.pk) for financial support.
Год издания: 2013
Авторы: Muhammad Shahid, Annabelle Austruy, Guillaume Echevarria, Muhammad Arshad, Muhammad Sanaullah, Muhammad Aslam, Muhammad Nadeem, Wajid Nasim, Camille Dumat
Издательство: Taylor & Francis
Источник: Soil and Sediment Contamination An International Journal
Ключевые слова: Plant Stress Responses and Tolerance, Heavy metals in environment, Electrokinetic Soil Remediation Techniques
Другие ссылки: Soil and Sediment Contamination An International Journal (HTML)
HAL (Le Centre pour la Communication Scientifique Directe) (HTML)