Phytoremediation of heavy metals—Concepts and applications

Ali, Hazrat; Khan, Ezzat; Sajad, Muhammad Anwar

doi:10.1016/j.chemosphere.2013.01.075

Cited by 3,174 publications

(1,608 citation statements)

References 129 publications

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“…The fact that phytoremediation is usually carried out in situ contributes to its cost-effectiveness and may reduce the exposure of the polluted substrate to humans, wildlife and the environment (Pilon-Smits, 2005). Depending on the conditions, the level of clean-up required, the plants used and the contaminants, phytoremediation can be divided into four types: phytoextraction, phytofiltration, phytostabilization and phytovolatilization (Thangavel and Subbhuraam, 2004;Ali et al, 2013). Table 10 Essential and non-essential heavy metals in atmospheric deposition rate yearly in the UK (Nicholson et al, 2003), France (FR) (Belon et al, 2012) and China (CH) (Luo et al, 2009) Hejna, Gottardo, Baldi, Dell'Orto, Cheli, Zaninelli and Rossi…”

Section: Strategies To Control Heavy Metal Pollutionmentioning

confidence: 99%

“…It is perceived as an acceptable, cost-effective and efficient, novel technology with acceptability among the communities. The proper plants for removal heavy metals should have the following components: (i) high growth rate, (ii) highly branched and widely distributed root system, (iii) good adaptation to prevailing environmental and climatic conditions, (iv) easy cultivation and harvest, (v) production of more above-ground biomass, (vi) resistance to pathogens and pests, (vii) more accumulation of the target heavy metals from soil, (viii) translocation of the accumulated heavy metals from roots to shoots and (ix) tolerance to the toxic effects of the target heavy metals (Sakakibara et al, 2011;Shabani and Sayadi, 2012;Ali et al, 2013;Maric et al, 2013). Phytoremediation comprises several techniques that use plants and associated microbes to remediate contaminated matrices, which are removed through transfer, containment, accumulation or dissipation.…”

Section: Strategies To Control Heavy Metal Pollutionmentioning

confidence: 99%

Section: Strategies To Control Heavy Metal Pollutionmentioning

confidence: 99%

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Review: Nutritional ecology of heavy metals

Hejna

Gottardo

Baldi

et al. 2018

Animal

160

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The aim of this review is to focus the attention on the nutrition ecology of the heavy metals and on the major criticisms related to the heavy metals content in animal feeds, manure, soil and animal-origin products. Heavy metals are metallic elements that have a high density that have progressively accumulated in the food chain with negative effects for human health. Some metals are essential (Fe, I, Co, Zn, Cu, Mn, Mo, Se) to maintain various physiological functions and are usually added as nutritional additives in animal feed. Other metals (As, Cd, F, Pb, Hg) have no established biological functions and are considered as contaminants/ undesirable substances. The European Union adopted several measures in order to control their presence in the environment, as a result of human activities such as: farming, industry or food processing and storage contamination. The control of the animal input could be an effective strategy to reduce human health risks related to the consumption of animal-origin products and the environmental pollution by manure. Different management of raw materials and feed, animal species as well as different legal limits can influence the spread of heavy metals. To set up effective strategies against heavy metals the complex interrelationships in rural processes, the widely variability of farming practices, the soil and climatic conditions must be considered. Innovative and sustainable approaches have discussed for the heavy metal nutrition ecology to control the environmental pollution from livestockrelated activities.

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Section: Strategies To Control Heavy Metal Pollutionmentioning

confidence: 99%

Section: Strategies To Control Heavy Metal Pollutionmentioning

confidence: 99%

Section: Strategies To Control Heavy Metal Pollutionmentioning

confidence: 99%

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Review: Nutritional ecology of heavy metals

Hejna

Gottardo

Baldi

et al. 2018

Animal

160

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“…However, a thorough economic analysis for this process is unavailable. Most phytoremediation studies are directed at the biological, biochemical, and agronomic processes (Ali et al, 2013). An economic outlook, instead of simple estimates of the cost advantages of phytoremediation over other techniques, has not been reported.…”

Section: Introductionmentioning

confidence: 99%

Cost–benefit calculation of phytoremediation technology for heavy-metal-contaminated soil

Wan

Lei

Chen

2016

Science of The Total Environment

311

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Heavy-metal pollution of soil is a serious issue worldwide, particularly in China. Soil remediation is one of the most difficult management issues for municipal and state agencies because of its high cost. A two-year phytoremediation project for soil contaminated with arsenic, cadmium, and lead was implemented to determine the essential parameters for soil remediation. Results showed highly efficient heavy metal removal. Costs and benefits of this project were calculated. The total cost of phytoremediation was US$75,375.2/hm 2 or US$37.7/ m 3 , with initial capital and operational costs accounting for 46.02% and 53.98%, respectively. The costs of infrastructures (i.e., roads, bridges, and culverts) and fertilizer were the highest, mainly because of slow economic development and serious contamination. The cost of phytoremediation was lower than the reported values of other remediation technologies. Improving the mechanization level of phytoremediation and accurately predicting or preventing unforeseen situations were suggested for further cost reduction. Considering the loss caused by environmental pollution, the benefits of phytoremediation will offset the project costs in less than seven years.

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“…Phytoremediation using hyperaccumulator plants to remove contaminants from soils is an environmentally friendly and relatively inexpensive technique [3][4][5]. However, most hyperaccumulators can typically remediate only a very limited number of pollutants so that other nonaccumulated metals (i.e.…”

Section: Introductionmentioning

confidence: 99%

Copper changes the yield and cadmium/zinc accumulation and cellular distribution in the cadmium/zinc hyperaccumulator Sedum plumbizincicola

Li¹,

Wu²,

Hu³

et al. 2013

Journal of Hazardous Materials

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Phytoremediation of heavy metals—Concepts and applications

Cited by 3,174 publications

References 129 publications

Review: Nutritional ecology of heavy metals

Review: Nutritional ecology of heavy metals

Cost–benefit calculation of phytoremediation technology for heavy-metal-contaminated soil

Copper changes the yield and cadmium/zinc accumulation and cellular distribution in the cadmium/zinc hyperaccumulator Sedum plumbizincicola

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