A Review on Remediation of Iron Ore Mine Tailings via Organic Amendments Coupled with Phytoremediation

Sarathchandra, Sajeevee S.; Rengel, Zed; Solaiman, Zakaria M.

doi:10.3390/plants12091871

Cited by 7 publications

(2 citation statements)

References 153 publications

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“…Thus, the phytoremediation of such a substrate should be preceded by some amendments, e.g., the improvement of organic matter; liming; fertilization by N, P, and K; fertilization by biochar; etc. to improve its physical, chemical, and biological properties-these measures are presently commonly and highly recommended [2,3,5,6,[87][88][89].…”

Section: Discussionmentioning

confidence: 99%

Alterations in the Anatomy and Ultrastructure of Leaf Blade in Norway Maple (Acer platanoides L.) Growing on Mining Sludge: Prospects of Using This Tree Species for Phytoremediation

Krzesłowska,

Mleczek,

Luboński

et al. 2024

Plants

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Alterations in leaf architecture can be used as an indicator of the substrate toxicity level as well as the potential of a given plant species in the phytoremediation of polluted areas, e.g., mining sludge. In this work, we demonstrated, for the first time, the nature and scale of alterations in leaf architecture at the tissue and cellular levels occurring in Norway maple growing on mining sludge originating from a copper mine in Lubin (Poland). The substrate differs from other mine wastes, e.g., calamine or serpentine soils, due to an extremely high level of arsenic (As). Alterations in leaf anatomy predominantly included the following: (1) a significant increase in upper epidermis thickness; (2) a significant decrease in palisade parenchyma width; (3) more compact leaf tissue organization; (4) the occurrence of two to three cell layers in palisade parenchyma in contrast to one in the control; (5) a significantly smaller size of cells building palisade parenchyma. At the cellular level, the alterations included mainly the occurrence of local cell wall thickenings—predominantly in the upper and lower epidermis—and the symptoms of accelerated leaf senescence. Nevertheless, many chloroplasts showed almost intact chloroplast ultrastructure. Modifications in leaf anatomy could be a symptom of alterations in morphogenesis but may also be related to plant adaptation to water deficit stress. The occurrence of local cell wall thickenings can be considered as a symptom of a defence strategy involved in the enlargement of apoplast volume for toxic elements (TE) sequestration and the alleviation of oxidative stress. Importantly, the ultrastructure of leaf cells was not markedly disturbed. The results suggested that Norway maple may have good phytoremediation potential. However, the general shape of the plant, the significantly smaller size of leaves, and accelerated senescence indicated the high toxicity of the mining sludge used in this experiment. Hence, the phytoremediation of such a substrate, specifically including use of Norway maple, should be preceded by some amendments—which are highly recommended.

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Section: Discussionmentioning

confidence: 99%

Alterations in the Anatomy and Ultrastructure of Leaf Blade in Norway Maple (Acer platanoides L.) Growing on Mining Sludge: Prospects of Using This Tree Species for Phytoremediation

Krzesłowska,

Mleczek,

Luboński

et al. 2024

Plants

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“…In 2022, mine tailings generated worldwide were estimated to be more than 14 billion metric tons, with potential to contaminate soil, water and air [70]. Mine tailings remain in dams/open ponds without further treatment after extraction of valuable minerals and negatively impacting the environment [71]. Abandoned mine tailings damage local land resources and pose severe environmental pollution.…”

Section: Environmental Pollutionmentioning

confidence: 99%

Aromatic Plants: Alternatives for Management of Crop Pathogens and Ideal Candidates for Phytoremediation of Contaminated Land

Banda,

Munyengabe,

Augustyn

2023

Environmental Sciences

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Crop diseases due to fungal pathogens cause significant resulting economic losses in agriculture. For management of crop diseases, farmers use synthetic pesticides. However, the frequent application of these chemicals leads to accumulation in soil and therefore presenting pollution problems. Essential oils (EOs) sourced from aromatic plants are safer alternatives and are effective against a variety of crops pathogens. In addition to their role as the sources of EOs, aromatic plants are gaining much attention in rehabilitation strategies. In phytoremediation processes, suitable plants species are used to clean-up polluted sites. Mining activities and electricity generation processes have resulted in significant amounts of tailings and coal fly ash. Mine tailings and coal fly ash are disposed in dumpsites, converting productive lands to unusable waste sites. These solid waste materials contain toxic metals and therefore posing serious risks to the health of the environment. Aromatic plants can be cultivated in contaminated sites and therefore be used for restoration of polluted lands. The EOs can be sourced from these aromatic plants as they are free from metal-toxicity and can therefore be used to generate revenues. This review highlights the role of aromatic plants in the control of crops pathogens and also their application in phytoremediation processes.

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Monitoring and assessment of ecological systems used for iron and environmental pollutants remediation from aqueous medium

Chanchpara,

Choudhary,

Muduli

et al. 2024

Environ Dev Sustain

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A Review on Remediation of Iron Ore Mine Tailings via Organic Amendments Coupled with Phytoremediation

Cited by 7 publications

References 153 publications

Alterations in the Anatomy and Ultrastructure of Leaf Blade in Norway Maple (Acer platanoides L.) Growing on Mining Sludge: Prospects of Using This Tree Species for Phytoremediation

Alterations in the Anatomy and Ultrastructure of Leaf Blade in Norway Maple (Acer platanoides L.) Growing on Mining Sludge: Prospects of Using This Tree Species for Phytoremediation

Aromatic Plants: Alternatives for Management of Crop Pathogens and Ideal Candidates for Phytoremediation of Contaminated Land

Monitoring and assessment of ecological systems used for iron and environmental pollutants remediation from aqueous medium

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