Chemical Methods of Soil Remediation

Koul, Bhupendra; Taak, Pooja

doi:10.1007/978-981-13-2420-8_4

Cited by 21 publications

(8 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To reduce or even eliminate the risks of these hazardous elements in the environment different physicochemical remediation approaches (i.e., soil washing, adsorption, biosorption, precipitation, and chelation with alginates, citrates, flavonoids, and phytic acid) have been developed [3]. However, it turned out that these methods hold significant limitations leading to the disturbance of ecosystems, e.g., altering the biological and physicochemical properties of soil and/or negatively affecting indigenous soil microbial communities [4]. As an alternative to physicochemical remediation methods, a biological innovative, environmentally friendly, and cost-efficient tool, based on the usage of vascular plants to extract, sequester, and/or detoxify pollutants, generally termed as phytoremediation, has been developed [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Trifolium repens-Associated Bacteria as a Potential Tool to Facilitate Phytostabilization of Zinc and Lead Polluted Waste Heaps

Oleńska

Imperato

Małek

et al. 2020

Plants

View full text Add to dashboard Cite

Heavy metals in soil, as selective agents, can change the structure of plant-associated bacterial communities and their metabolic properties, leading to the selection of the most-adapted strains, which might be useful in phytoremediation. Trifolium repens, a heavy metal excluder, naturally occurs on metal mine waste heaps in southern Poland characterized by high total metal concentrations. The purpose of the present study was to assess the effects of toxic metals on the diversity and metabolic properties of the microbial communities in rhizospheric soil and vegetative tissues of T. repens growing on three 70–100-years old Zn–Pb mine waste heaps in comparison to Trifolium-associated bacteria from a non-polluted reference site. In total, 113 cultivable strains were isolated and used for 16S rRNA gene Sanger sequencing in order to determine their genetic affiliation and for in vitro testing of their plant growth promotion traits. Taxa richness and phenotypic diversity in communities of metalliferous origin were significantly lower (p < 0.0001) compared to those from the reference site. Two strains, Bacillus megaterium BolR EW3_A03 and Stenotrophomonas maltophilia BolN EW3_B03, isolated from a Zn–Pb mine waste heap which tested positive for all examined plant growth promoting traits and which showed co-tolerance to Zn, Cu, Cd, and Pb can be considered as potential facilitators of phytostabilization.

show abstract

Section: Introductionmentioning

confidence: 99%

Trifolium repens-Associated Bacteria as a Potential Tool to Facilitate Phytostabilization of Zinc and Lead Polluted Waste Heaps

Oleńska

Imperato

Małek

et al. 2020

Plants

View full text Add to dashboard Cite

show abstract

“…During recent years, NMs have been integrated with biological processes to accelerate and promote the removal of toxic compounds from the environment [22]. Cecchin et al [23] use the term nanobioremediation for processes where NPs and microorganisms or plants are used to remove contaminants. Moreover, El-Ramady et al [24] named these types of practices according to the nature of the organism utilized for the remediation of contaminants.…”

Section: Principles Of Nanobioremediation Technologiesmentioning

confidence: 99%

Use of Nanotechnology for the Bioremediation of Contaminants: A Review

et al. 2020

View full text Add to dashboard Cite

Contaminants, organic or inorganic, represent a threat for the environment and human health and in recent years their presence and persistence has increased rapidly. For this reason, several technologies including bioremediation in combination with nanotechnology have been explored to identify more systemic approaches for their removal from environmental matrices. Understanding the interaction between the contaminant, the microorganism, and the nanomaterials (NMs) is of crucial importance since positive and negative effects may be produced. For example, some nanomaterials are stimulants for microorganisms, while others are toxic. Thus, proper selection is of paramount importance. The main objective of this review was to analyze the principles of bioremediation assisted by nanomaterials, nanoparticles (NPs) included, and their interaction with environmental matrices. It also analyzed the response of living organisms employed to remediate the contaminants in the presence of nanomaterials. Besides, we discuss the international regulatory frame applicable to these technologies and how they might contribute to sustainability.

show abstract

“…The method of electrokinetic remediation is most effective in the soils with a high proportion of finer soil particles in the agrillaceous and silty soils (Khalid et al, 2017). The implementation of electrokinetic remediation is performed by the electrodes, which affect the pH value of an agricultural land and immobilize the toxic heavy metal compounds (Koul and Taak, 2018) by generating the H + and the OHions at the anode and cathode, respectively. The particles containing the toxic heavy metal compounds in the soil gradually move toward the electrodes of an opposite charge in an electric field.…”

Section: Radočaj Et Al: the Remediation Of Agricultural Land Contmentioning

confidence: 99%

“…A soil replacement dilutes the contaminating heavy metal compounds, thus improving a soil functionality and fertility. Originally contaminated soil removed from an agricultural land is treated with some of the ex-situ remediation technologies or disposed of at special landfills (Koul and Taak, 2018). Although the implementation of this approach is technologically undemanding, the costs of labor and soil transport make this technology economical only in case of a severely contaminated agricultural land in a smaller area.…”

Section: Physical Remediation Technologiesmentioning

confidence: 99%

The Remediation of Agricultural Land Contaminated by Heavy Metals

et al. 2020

View full text Add to dashboard Cite

The presence of heavy metals in an agricultural land is the primary cause of food product toxicity of a herbal and animal origin associated with a contaminated agricultural land. The anthropogenic sources of pollution, especially the fertilizers and pesticides in agriculture, are the primary sources of agricultural land contamination with heavy metals. The heavy metals whose monitoring is prescribed by the current legislation of the Republic of Croatia include cadmium (Cd), chromium (Cr), copper (Cu), mercury (Hg), nickel (Ni), lead (Pb) and zinc (Zn). The aim of this paper is to provide a review of heavy metals that cause contamination of an agricultural land, as well as a review of remediation technologies applied to reduce contamination. Furthermore, the paper considers three groups of remediation technologies, i.e., the biological, chemical, and physical ones, analyzing the applicability, efficiency, cost-effectiveness and accessibility in Croatia to encourage their wider implementation. The biological remediation technologies, also known as phytoremediation, met the set criteria the most, which currently renders them most applicable to the mildly‐ and moderately‐contaminated agricultural land. The chemical and physical remediation technologies are generally more suitable for the remediation of a severely contaminated agricultural land, applied individually or in combination with the phytoremediation methods due to the high cost.

show abstract

Chemical Methods of Soil Remediation

Cited by 21 publications

References 41 publications

Trifolium repens-Associated Bacteria as a Potential Tool to Facilitate Phytostabilization of Zinc and Lead Polluted Waste Heaps

Trifolium repens-Associated Bacteria as a Potential Tool to Facilitate Phytostabilization of Zinc and Lead Polluted Waste Heaps

Use of Nanotechnology for the Bioremediation of Contaminants: A Review

The Remediation of Agricultural Land Contaminated by Heavy Metals

Contact Info

Product

Resources

About