Phytoextraction of metal(loid)s from contaminated soils by six plant species: A field study

Yu, Fangming; Tang, Shuting; Shi, Xingwei; Liang, Xizhuang; Liu, Kehui; Huang, Yongji; Li, Yi

doi:10.1016/j.scitotenv.2021.150282

Cited by 43 publications

(11 citation statements)

References 65 publications

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“…The accumulation process of mercury contaminant is influenced by phytoextraction process as the absorption ability of mercury contaminant from waterbody or substrate through mangrove roots stored in leaves plant 39,62 , Phytovolatilization Process as the absorption of mercury contaminant using evaporative process and be transpired by mangrove leaves 29,63,64 , phytodegradation or phytotransformation process as they absorb and destroy the activity of mercury contaminant enzymes metabolism or compounds, phytostabilization process as transforming process of mercury contaminant become non-toxic compounds 63,65,66 and rhizofiltration process as the pollutant absorbing process by mangrove root 63,67,68 . Whereas the Translocation Factor (TF) shows the mercury transfer and translocation process from root to leaf and another organ 3,17,19,33 .…”

Section: The Bioaccumalation Factor (Baf) and The Translocation Facto...mentioning

confidence: 99%

The Ecological Risk Assessment of Mercury Contamination in a Mangrove Ecosystem of the Segara Anakan Cilacap, Indonesia

et al. 2023

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Ecological risk assessment of mercury contaminant has a means to analyze the ecological risk aspect of ecosystem using the potential impact of mercury pollution in soil, water and organism. The ecological risk assessment in a coastal area can be shown by mangrove zonation, clustering and interpolation of mercury accumulation. This research aims to analyze ecological risk assessment of potential mercury (including bioaccumulation and translocation) using indicators of species distribution, clustering, zonation and interpolation of mercury accumulation. The results showed that the Segara Anakan had a high risk of mercury pollution, using indicators like as the potential of mercury contaminant in water body was 0137±0.0137 ppm, substrate and sediment were 0.0134±0.0212 ppm. To reduce the impact of mercury pollution could be conducted by mangrove planting, following the ability of mercury accumulation in stem and bark between 0.011 and 0.064 ppm, in mangrove roots between 0.0260 and 0.0690 ppm and in mangrove leaves between 0.0020 and 0.0120 ppm,. The second indicator of mangrove ability to reduce the impact of mercury contaminant used the indicator of bioaccumulation factors, which had a range between 0.0210 and 0.4751, and the translocation factors were between 0.0459 and 1.0547. The results also showed that: Avicennia marina, Sonneratia alba, Rhizophora apiculate, Rhizophora mucronata and Nypa frutican had a good ability to accumulate and reduce the impact of mercury contamination.

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Section: The Bioaccumalation Factor (Baf) and The Translocation Facto...mentioning

confidence: 99%

The Ecological Risk Assessment of Mercury Contamination in a Mangrove Ecosystem of the Segara Anakan Cilacap, Indonesia

et al. 2023

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“…The different types of phytoremediation that exist include phytoextraction, phytostabilization, phytofiltration and phytovolatilization (Shen et al, 2022). Phytoextraction is the process by which metalloids are extracted from contaminated soil, with the aid of accumulator plants (Yu et al, 2022). The phytostabilization process, uses plants that are resistant to metals to reduce he availability of pollutants in the environment (Kumar et al, 2023).…”

Section: Phytobioremediationmentioning

confidence: 99%

Remediation by enhanced natural attenuation; an environment-friendly remediation approach

Ayilara,

Adeleke,

Adebajo

et al. 2023

Front. Environ. Sci.

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The uncontrolled use of chemicals, urban wastes, nuclear resources, mining, petrochemicals and disposal of sewage sludge only a few anthropogenic activities that have contributed to the rapid industrialization and severe heavy metal contamination of soils and waterways. Both inorganic and organic pollutants, such as heavy metals, pesticides, petroleum hydrocarbons, and polycyclic aromatic hydrocarbons, can impact the composition and functionality of soils. Soils and plants are affected by pollution, thus, pose a dire threat to food security. This directly renders the soil unuseful for agricultural purposes, destroys the beneficial microbes in the soil, reduces the soil organic matter content, causes the imbalance of soil nutrients, affects plant growth and the interaction between the plants and microbes, subsequently affecting the soil and crop productivity. In addition, environmental pollutants affect human health, leading to different illnesses such as headaches, allergies, coughs, depression, chest pain, nausea, diabetes, liver problems, cancers, eye problems, and so on. Remediation (physical, chemical or biological) is therefore necessary to reduce the impacts of these pollutants in the environment. Bioremediations involve using natural products from plants, microbes, and so on, to detoxify the environment and make it useful or productive again. A key type of remediation is the Remediation by Enhanced Natural Attenuation (RENA) which involves the turning of soil to promote microbial proliferation, aeration, nutrient availability, moisture and consequently, the degradation of pollutants. This review discusses the technology of RENA, the associated microbes, the mechanism of its action, challenges associated with its usage and recommendations to advance the use of RENA for a sustainable environment.

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“…Phytoremediation technology is an eco-friendly remediation technology developed in recent years [12][13][14][15]. Hyper-accumulators absorb and enrich heavy metals from the contaminated soil during the growth process, promoting the transformation of heavy metals to a low toxicity state, and remove the heavy metals enriched in plants out of the polluted soil [16,17]. In this way, heavy metal pollutants in the polluted soil are continuously removed via the repeated planting and harvesting [18].…”

Section: Introductionmentioning

confidence: 99%

Combined Remediation towards Cadmium–Arsenic-Contaminated Soil via Phytoremediation and Stabilization

Zhang,

Wu,

Cao

2023

Resources

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Using a phytoremediation technique for soil remediation usually takes many years, which increases the risk that heavy metals spread into the environment during the project period. Currently, the combined remediation technique (phytoremediation and stabilization) is known as the solution to reduce this risk. In this study, the combined remediation of cadmium–arsenic-contaminated soil via phytoremediation and stabilization was studied. The pot experiment was carried out using modified fly ash (MFA) and solid waste material (steel slag (SS): pyrolusite (PY): ferrous sulfide (FS) = 1:2:8) as stabilization materials and Bidens pilosa as the accumulative plant. The characteristics of B. pilosa, including its water content, biomass, root length, plant height, and heavy metal content, were obtained after harvesting, and the reduction rate of the bioavailability of Cd and As and their physico-chemical properties, including the pH, Eh, and Ec values of the soil, were also measured. The remediation effect was evaluated according to the above indexes, and the mechanism of combined remediation was studied through the FTIR, XRD, and XPS analyses. These experiments have shown that adding an appropriate amount of MFA can enhance the absorption of heavy metals by plants in the soil and reduce the bioavailability of heavy metals in contaminated soil. In addition, the mechanism study revealed that Cd2+/Cd(OH)+ was easily adsorbed on Si-OH and MnOOH, while AsO43− was more easily adsorbed on Fe-OH and Al-OH.

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Phytoextraction of metal(loid)s from contaminated soils by six plant species: A field study

Cited by 43 publications

References 65 publications

The Ecological Risk Assessment of Mercury Contamination in a Mangrove Ecosystem of the Segara Anakan Cilacap, Indonesia

The Ecological Risk Assessment of Mercury Contamination in a Mangrove Ecosystem of the Segara Anakan Cilacap, Indonesia

Remediation by enhanced natural attenuation; an environment-friendly remediation approach

Combined Remediation towards Cadmium–Arsenic-Contaminated Soil via Phytoremediation and Stabilization

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