Environmental Remediation Technologies for Metal-Contaminated Soils

Hasegawa, Hiroshi; Rahman, Ismail M.M.; Rahman, Mohammad Azizur

doi:10.1007/978-4-431-55759-3

Cited by 38 publications

(6 citation statements)

References 273 publications

(417 reference statements)

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“…It is worth noting that neither the clay minerals (illite) nor the other minerals show any positive correlation with the metal content. This fact may be explained by the low capacity of these minerals to host in their crystalline structures or selectively absorb metals (Alamgir, 2016).…”

Section: Discussionmentioning

confidence: 99%

Marine sediment contamination and dynamics at the mouth of a contaminated torrent: The case of the Gromolo Torrent (Sestri Levante, north-western Italy)

Capello

Cutroneo

Consani

et al. 2016

Marine Pollution Bulletin

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In this study we have examined the currents and hydrological characteristics of the water column off the mouth of the Gromolo Torrent (north-western Italy) in relation to the grain-size, mineralogical characteristics and metal distribution in the marine sediment sampled. Our purpose was to quantify and map the contamination that was carried out to sea from the abandoned Libiola Fe-Cu sulphide mine that has heavily impacted the torrent. Our results show high concentrations of Cu and Zn, and relatively high concentrations of Cd and Ni inside the bay into which the Gromolo Torrent flows. However, high concentrations of As, Cr, Hg, Mn, Pb, and V found in the northern and/or eastern parts of the study area originated from other sources. The subdivision of study stations in terms of metal and mineral contents in the bottom sediments highlighted the clear influence of the currents on their dispersion and distribution in the area.

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Section: Discussionmentioning

confidence: 99%

Marine sediment contamination and dynamics at the mouth of a contaminated torrent: The case of the Gromolo Torrent (Sestri Levante, north-western Italy)

Capello

Cutroneo

Consani

et al. 2016

Marine Pollution Bulletin

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“…This could be due to different soil types that were used to cover the soil of the spoil deposit. According to Hasegawa et al [40], the CEC for clay soils usually exceeds 30 cmol(+)/kg whereas, for sandy soils, the value ranges from 0 to 5 cmol(+)/kg. These results are in correlation with the results obtained from several studies conducted from the uranium polluted soils where the CECs had wide ranges 4.10 to 81.4 cmol(+)/kg [41], 51.0 to 658 meq/kg [42], 0.12 to 5.13 cmol(+)/kg [43], and 8.40 to 59.0 cmol(+)/kg [44].…”

Section: Chemical Propertiesmentioning

confidence: 99%

Mobility of Potentially Toxic Elements from the Abandoned Uranium Mine’s Spoil Bank

Khumalo

Heltai

Várhegyi³

et al. 2021

Ecological Chemistry and Engineering S

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This study is part of the ongoing environmental monitoring program of the abandoned Mecsek uranium mine during the remediation period. During this program on the recultivated No.1 spoil bank, the radioactivity and the potentially toxic element (PTE) contents in the covering soil had shown some anomalies which refers to possible migration alongside the slope. Therefore, in a previous study, soil and plant samples were collected from top to bottom position of the slope and the total element content was determined by multi-elemental inductively coupled plasma-optical emission spectrometry. The results have indicated that there was a high possibility for PTEs to be mobile and available for uptake by plants. To confirm this indication in the present study for the soil samples the BCR sequential extraction procedure was applied to characterise the environmental mobility of PTEs, and it was compared with soil pH and cation exchange capacity (CEC). The results indicated that the ratio of Cd, Co, Mn, Pb, and U in the non-residual fractions ranged between 36.8 to 100 % and increased from top to bottom direction. The comparison showed that the samples with the lowest pH and CEC had the most mobility of the PTEs. The distribution of U, Cd, Mn, Co, and Pb in fractions indicated that some parts of the spoil deposit require additional steps to hinder the migration through the covering soil layer, and the BCR sequential extraction procedure has proven to be useful in providing information for the planning and management of remediation operations.

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“…Anthropogenic activities arising from industrialization largely contribute to the proliferation of these contaminants, either by direct leakage or accidents during transport of solid and liquid wastes from storage and industrial facilities [2,3]. Strategies to clean up environmental contaminants, both organic and inorganic are either by physical, chemical and or biological treatments [4,5]. However, physical and chemical methods are recognized for a number of disadvantages or limitations such as high cost and labor intensiveness.…”

Section: Introductionmentioning

confidence: 99%

Phytoremediation: Halophytes as Promising Heavy Metal Hyperaccumulators

Usman¹,

Abu-Dieyeh²

2018

Heavy Metals

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The continued accumulation of trace and heavy metals in the environment presents a significant danger to biota health, including humans, which is undoubtedly undermining global environmental sustainability initiatives. Consequently, the need for efficient remediation technologies becomes imperative. Phytoremediation is one of the most viable options in this regard. Hundreds of plants in laboratory experiments demonstrate the potential to remediate varying concentrations of heavy metals; however, the remediation capacity of most of these plants proved unsatisfactory under field conditions. The identification and selection of plants with higher metal uptake capacity or hyperaccumulators are one of the limitations of this technology. Additionally, the mechanism of heavy metal uptake by plants remains to be sufficiently documented. The halophyte plants are famous for their adaptation to harsh environmental conditions, and hence could be the most suitable candidates for heavy metal hyperaccumulation. The state of Qatar in the Gulf region encompasses rich resources of halophytes that have the potential for future investment toward human and environmental health. This chapter, therefore, gives an overview of phytoremediation, with emphasis on halophytes as suitable heavy metal hyperaccumulators for improved remediation of heavy metal-contaminated areas.

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Environmental Remediation Technologies for Metal-Contaminated Soils

Cited by 38 publications

References 273 publications

Marine sediment contamination and dynamics at the mouth of a contaminated torrent: The case of the Gromolo Torrent (Sestri Levante, north-western Italy)

Marine sediment contamination and dynamics at the mouth of a contaminated torrent: The case of the Gromolo Torrent (Sestri Levante, north-western Italy)

Mobility of Potentially Toxic Elements from the Abandoned Uranium Mine’s Spoil Bank

Phytoremediation: Halophytes as Promising Heavy Metal Hyperaccumulators

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