Remediation of heavy metal contaminated soil: Role of biochar

Gogoi, Lina; Narzari, Rumi; Chutia, Rahul Singh; Borkotoki, Bikram; Gogoi, Nirmali; Kataki, Rupam

doi:10.1016/bs.apmp.2021.08.002

Cited by 4 publications

(2 citation statements)

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“…Using biochar simultaneously with other compounds and amendment materials, in addition to overlapping their defects, enhances phytoremediation and pollution stabilization and removal (Forján et al, 2018;Gong et al, 2021), therefore, researchers have been focusing on how biochar can be combined with nanoparticles, compost, lime, sulfur, metal oxides, etc., to improve phytoremediation in recent decades (Xu et al, 2018a;Ding et al, 2020;Roohi et al, 2020;Gogoi et al, 2021;Narayanan and Ma, 2022). In a study conducted on B. juncea for The effects of an increase in pyrolysis temperature, soil exposure time, and lignin content of the feedstock on the properties of biochar.…”

Section: Phytoremediation With Biochar In Combination With Other Factorsmentioning

confidence: 99%

Biochar; an effective factor in improving phytoremediation of metal(iod)s in polluted sites

Boorboori,

Lackóová

2023

Front. Environ. Sci.

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Phytoremediation is one of the cheapest and most widely used technologies for stabilizing and extracting pollutants from contaminated sites. Recently, a variety of solutions, such as the use of different elements, compost, nanoparticles, microorganisms, etc., have been explored for improving and accelerating the phytoremediation process. Biochar has also gained attention for its affordability, abundance, ability to improve soil structure and plant morpho-physiology and biochemistry, lack of environmental hazards, etc. As a first step, this study aimed to provide an overview of biochar’s properties, and operation by identifying the method of production and examining the differences between different types of biochar. Following that, by examining various factors that pollute the environment, the influence of different types of biochar on phytoremediation efficiency was explored. Also, in this study, an attempt has been made to examine the effect of the combination of biochar with other factors in improving the phytoremediation of pollutants, as well as the use of the residues of phytoremediation for the production of biochar, so that future research can be planned based on the results obtained.

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Section: Phytoremediation With Biochar In Combination With Other Factorsmentioning

confidence: 99%

Biochar; an effective factor in improving phytoremediation of metal(iod)s in polluted sites

Boorboori,

Lackóová

2023

Front. Environ. Sci.

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“…Heavy metal and metalloid intensification in soil have increased rapidly in terms of natural phenomena and anthropogenic activities, including mining, agricultural activities, and industrial and municipal discharge, which all pose severe threats to environmental protection and public health ( Sharma et al, 2022 ). Because they are non-biodegradable, they might remain in the soil, enter into the food chain via agricultural crops, and even accumulate in humans via biomagnification/bioaccumulation ( Gogoi et al, 2021 ). Heavy metals are a class of elements distinguished by their high atomic weight and mass, with a specific density of greater than 5 g/cm 3 ( Buha et al, 2014 ).…”

Section: Introductionmentioning

confidence: 99%

Influences of Biochar on Bioremediation/Phytoremediation Potential of Metal-Contaminated Soils

Narayanan

2022

Front. Microbiol.

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A number of anthropogenic and weathering activities accumulate heavy metals in soils, causing adverse effects on soil characteristics, microbial activity (diversity), agricultural practices, and underground aquifers. Controlling soil heavy metal pollution is difficult due to its persistence in soils, resulting in the deposition and transmission into the food web via agricultural food products, ultimately affecting human health. This review critically explores the potential for remediation of metal-contaminated soils using a biochar-based responsible approach. Plant-based biochar is an auspicious bio-based residue substance that can be used for metal-polluted soil remediation and soil improvement as a sustainable approach. Plants with rapid growth and increased biomass can meet the requirements for phytoremediation in large quantities. Recent research indicates significant progress in understanding the mechanisms of metal accumulation and contaminant movement in plants used for phytoremediation of metal-contaminated soil. Excessive contamination reduces plant biomass and growth, which has substantial hyperaccumulating possibilities and is detrimental to the phytoremediation process. Biochar derived from various plant sources can promote the growth and phytoremediation competence of native or wild plants grown in metal-polluted soil. Carbon-enriched biochar encourages native microbial growth by neutralizing pH and providing nutritional support. Thus, this review critically discusses the influence of plant and agricultural waste-based biochar on plant phytoremediation potential in metal-contaminated soils.

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