Phytoremediation strategies for soils contaminated with heavy metals: Modifications and future perspectives

Sarwar, Nadeem; Imran, Muhammad; Shaheen, Muhammad Rashid; Ishaque, Wajid; Kamran, Muhammad; Matloob, Amar; Rehim, Abdur; Hussain, Saddam

doi:10.1016/j.chemosphere.2016.12.116

Cited by 1,019 publications

(287 citation statements)

References 88 publications

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“…There are several ways by which the mobility of heavy metals can be modified, including synthetic chelators, rhizosphere microbes, and biochar in combination with organic residues (Sarwar et al 2017). For instance, addition of phosphogypsum alone resulted in more immobilization of heavy metals (zinc, nickel, lead and cadmium) than did a combined soil treatment of phosphogypsum and rice straw composite but the latter treatment significantly improved biomass production of canola (Mahmoud and Abd El-Kader 2015).…”

Section: Biological Methodsmentioning

confidence: 99%

“…and (e) its limited applicability to sites containing slightly to moderately toxic concentrations of metals (Wong 2003;Ali et al 2013;Sarwar et al 2017). Because of these limitations of phytoextraction, phytostabilization has emerged as a sustainable ''green technology'' for restoration of mine wastelands (Mendez and Maier 2008;Bolan et al 2011).…”

Section: Biological Methodsmentioning

confidence: 99%

“…On the global scale, research output in phytoremediation has been increasing at a faster rate than other restoration techniques over the past decade, particularly in Southeast Asia (Koelmel et al 2015). This large and spatially scattered body of knowledge has been systematically reviewed, covering a range of issues from ecological impacts , concepts and applications (Ali et al 2013), to restoration challenges (Pietrzykowski 2015;Mahar et al 2016;Nirola et al 2016) and potential restoration techniques (Rajkumar et al 2012;Paz-Ferreiro et al 2014;Sarwar et al 2017). National reviews of ecological restoration of mine wasteland are also available, e.g., for China (Li 2006) and Ghana (Mensah 2015).…”

Section: Introductionmentioning

confidence: 99%

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Progresses in restoration of post-mining landscape in Africa

et al. 2018

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Mining alters the natural landscape and discharges large volumes of wastes that pose serious pollution hazards to the environment, to human health and to agriculture. As a result, the recent 2 decades have witnessed a global surge in research on post-mining landscape restoration, yielding a suite of techniques including physical, chemical, biological (also known as phytoremediation) and combinations. Despite the long history of mining in Africa, no systematic review has summarized advances in restoration research and practices after mining disturbance. Thus, the aim of this review was to document the state-of-knowledge and identify gaps in restoration of postmining landscape in Africa through literature review. We found that: (1) there has been substantial progress in identifying species suitable for phytoremediation; (2) few studies evaluated the feasibility of organic amendments to promote autochthonous colonization of mine wastelands or growth of planted species; and (3) restoration of limestone quarries in Kenya, sand mining tailings in South Africa, and gold mine wasteland in Ghana are successful cases of large-scale post-mining restoration practices in Africa. However, the pace of post-mining landscape restoration research and practice in Africa is sluggish compared to other parts of the global south. We recommend: (1) mainstreaming the restoration of mine wastelands in national research strategies and increased development planning to make the mining sector ''Green''; (2) inventory of the number, area, and current status of abandoned mine lands; (3) expanding the pool of candidate species for phytostabilization; (4) further evaluating the phytostabilization potential of organic amendments, e.g., biochar; (5) assessing the impacts of mining on regional biodiversity.

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Section: Biological Methodsmentioning

confidence: 99%

Section: Biological Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Progresses in restoration of post-mining landscape in Africa

et al. 2018

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“…Os metais essenciais incluem cobre (Cu), zinco (Zn), manganês (Mn), níquel (Ni), ferro (Fe) e outros, e são também chamados de micronutrientes ou oligonutrientes por serem necessários ao corpo humano em quantidades extremamente pequenas. Estes metais têm grande importância como reguladores em vários processos biológicos (SALEM et al, 2000;TRINDADE, 2010;SARWAR et al, 2016), e também integram moléculas importantes para o organismo, como o ferro na hemoglobina. Entretanto, em altos níveis mesmos os essenciais são prejudiciais à saúde humana.…”

Section: Metais E Saúde Humanaunclassified

“…Os metais ditos não-essenciais oferecem grandes riscos aos processos biológicos por substituírem os metais essenciais nas estruturas das biomoléculas (SARWAR et al, 2010), o que causa alteração ou inibição do funcionamento destas, além de causarem sérios danos à membrana e outras organelas celulares (SARWAR et al, 2016). Portanto, os efeitos nocivos dos metais pesados aos organismos se dão tanto em altas concentrações quanto em deficiências alimentares (TRINDADE, 2010).…”

Section: Metais E Saúde Humanaunclassified

Avaliação Geoquímica Ambiental Do Garimpo Areinha: Estudo Da Concentração E Distribuição De Metais Pesados Nos Sedimentos E Os Danos À Saúde Humana

Araújo¹,

Freitas

Moura

et al. 2017

Hygeia

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RESUMOO garimpo denominado Areinha está inserido na bacia hidrográfica do rio Jequitinhonha, cujas águas drenam áreas de garimpos que influenciam diretamente na qualidade do recurso hídrico. A área de pesquisa possui uma extensão de aproximadamente 9 km, área que está sob os cuidados da COOPERGADI. A pesquisa analisa os parâmetros para os metais Cu, Ni, Pb e Zn, analisando a concentração e a posterior comparação com a legislação do CONAMA 344/2004, visando inferir um alerta sob os riscos à saúde que da exposição direta a esses metais pode causar na população.

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