Challenges and opportunities in the phytoremediation of heavy metals contaminated soils: A review

Mahar, Amanullah; Ping, Wang; Ali, Amjad; Awasthi, Mukesh Kumar; Lahori, Altaf Hussain; Wang, Quan; Li, Ronghua; Zhang, Zengqiang

doi:10.1016/j.ecoenv.2015.12.023

Cited by 995 publications

(354 citation statements)

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“…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%

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: Introductionmentioning

confidence: 99%

Progresses in restoration of post-mining landscape in Africa

et al. 2018

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“…No entanto, as atividades antrópicas têm contribuído para aumentar significativamente a concentração desses elementos no meio, principalmente a mineração e o uso de agrotóxicos e pesticidas em culturas (MAHAR et al, 2016). Uechi et al (2017) analisaram a presença de metais pesados no Sistema Aquífero Bauru em Mato Grosso do Sul, reforçando a importância da consolidação de uma rede de monitoramento da qualidade das águas subterrâneas, a fim de estabelecer um zoneamento de vulnerabilidade à contaminação por meio de medidas de controle, prevenção e remediação.…”

Section: Introductionunclassified

Análise Da Presença De Metais Pesados Na Água Em Diferentes Reservatórios Subterrâneos No Município De Vitória Da Conquista-Ba

Ferraz¹,

Dourado²,

Rodrigues³

et al. 2018

Agrarian

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RESUMOO monitoramento da qualidade da água subterrânea é de fundamental importância para o delineamento de estratégias que mantenham os níveis de potabilidade dentro da faixa de segurança aceitável pela legislação, e assim, a sadia qualidade de vida da população abastecida por esta seja mantida. Visto isso, o presente trabalho apresenta os dados relativos às análises da presença de metais pesados na água subterrânea proveniente de diferentes poços artesianos localizados na cidade de Vitória da Conquista, no sudoeste baiano. Foram escolhidos seis poços tubulares distribuídos na área urbana da cidade, procedendo-se a determinação dos traços de metais presentes na água ao longo de sete meses de monitoramento mensal. Foi observado que somente o cromo se encontra dentro do valor permitido em todos poços, enquanto os teores de níquel, cádmio e chumbo se apresentaram em níveis elevados na maioria das amostras analisadas. Conclui-se que os poços estudados carecem de tratamento convencional para atingir os níveis aceitáveis para consumo humano, definidos pela legislação. A presente pesquisa auxiliou na incrementação do banco de dados sobre a qualidade das águas subterrâneas da cidade. PALAVRAS-CHAVE: Águas subterrâneas, Metais pesados, Monitoramento. ANALYSIS OF THE PRESENCE OF HEAVY METALS IN WATER IN DIFFERENT UNDERGROUND RESERVOIRS IN THE MUNICIPALITY OF VITÓRIA DECONQUISTA-BA ABSTRACT The monitoring of groundwater quality is of fundamental importance for the design of strategies that maintain their levels of potability within the safety range acceptable by the legislation, and thus contribute to the quality of life of the population that uses it

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“…Reported costs are scarce in the literature but a cost of 50-200 US $/m 3 is reported by Virkutyte et al [16] for various methods applied in the 1990s. More recently, there has been interest in applying phytoremediation for Direct Recovery, this is called 'phytomining' (or agromining) and the estimated profitability of Ni phytomining using Berkheya coddii on serpentine soils rich in Ni (Australia) has been recently estimated at 11,500 AU$/ha/yield and the profitability of Au phytomining using Brassica juncea is about 26,000 AU$/ha/yield [17].…”

Section: Contaminated Land Remediation Technologiesmentioning

confidence: 99%

In Situ Resource Recovery from Waste Repositories: Exploring the Potential for Mobilization and Capture of Metals from Anthropogenic Ores

Sapsford

Cleall

Harbottle

2016

J. Sustain. Metall.

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Wastes and the waste repositories in which they reside are becoming targets for resource recovery, both for legacy wastes and for future waste arisings as part of a desire to move toward a circular economy. There is an urgent requirement to explore concepts for practicable technologies that can be applied to these ends. This paper presents a synthesis of concepts concerning in situ technologies (developed from mining and contaminated land remediation industries) that have enormous potential for application to technospheric mining. Furthermore, potential target waste streams and their mineralogy and character are presented along with a discussion concerning lixiviant and metal capture systems that could be applied. Issues of preferential flow (critical to the success of in situ techniques) and how to control it with engineering measures are discussed in detail. It is clear that in situ recovery of metals from anthropogenic ores is a novel technology area that links new sustainable remediation approaches for contaminated materials and technospheric mining for closing material loops, and warrants the further research and development of technologies applicable to major waste streams.

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Challenges and opportunities in the phytoremediation of heavy metals contaminated soils: A review

Cited by 995 publications

References 100 publications

Progresses in restoration of post-mining landscape in Africa

Progresses in restoration of post-mining landscape in Africa

Análise Da Presença De Metais Pesados Na Água Em Diferentes Reservatórios Subterrâneos No Município De Vitória Da Conquista-Ba

In Situ Resource Recovery from Waste Repositories: Exploring the Potential for Mobilization and Capture of Metals from Anthropogenic Ores

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