Heavy metals in food crops: Health risks, fate, mechanisms, and management

Environment International, Journal Year: 2019, Volume and Issue: 125, P. 365 - 385

Published: Feb. 10, 2019

Food security is a high-priority issue for sustainable global development both quantitatively and qualitatively. In recent decades, adverse effects of unexpected contaminants on crop quality have threatened food human health. Heavy metals metalloids (e.g., Hg, As, Pb, Cd, Cr) can disturb metabolomics, contributing to morbidity even mortality. Therefore, this review focuses describes heavy metal contamination in soil–food subsystems with respect health risks. It also explores the possible geographical pathways such subsystems. In-depth discussion further offered physiological/molecular translocation mechanisms involved uptake metallic inside crops. Finally, management strategies are proposed regain sustainability

Language: Английский

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Multifunctional applications of biochar beyond carbon storage

International Materials Reviews, Journal Year: 2021, Volume and Issue: 67(2), P. 150 - 200

Published: May 7, 2021

Biochar is produced as a charred material with high surface area and abundant functional groups by pyrolysis, which refers to the process of thermochemical decomposition organic at elevated temperatures in absence oxygen. The carbon component biochar relatively stable, and, hence, was originally proposed soil amendment store soil. has multifunctional values that include use it for following purposes: improve health, nutrient microbial carrier, immobilising agent remediation toxic metals contaminants water, catalyst industrial applications, porous mitigating greenhouse gas emissions odorous compounds, feed supplement animal health intake efficiency thus, productivity. This article provides first time an overview unintended consequences applications.

Language: Английский

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Multifunctional iron-biochar composites for the removal of potentially toxic elements, inherent cations, and hetero-chloride from hydraulic fracturing wastewater

Environment International, Journal Year: 2019, Volume and Issue: 124, P. 521 - 532

Published: Jan. 25, 2019

This paper evaluates a novel sorbent for the removal of potentially toxic elements, inherent cations, and hetero-chloride from hydraulic fracturing wastewater (FWW). A series iron-biochar (Fe-BC) composites with different Fe/BC impregnation mass ratios (0.5:1, 1:1, 2:1) were prepared by mixing forestry wood waste-derived BC powder an aqueous FeCl3 solution subsequently pyrolyzing them at 1000 °C in N2-purged tubular furnace. The porosity, surface morphology, crystalline structure, interfacial chemical behavior Fe-BC characterized, revealing that Fe chelated CO bonds as COFe moieties on surface, which reduced to CC bond nanoscale zerovalent (nZVI) during pyrolysis. performance was evaluated simultaneous elements (Cu(II), Cr(VI), Zn(II), As(V)), cations (K, Na, Ca, Mg, Ba, Sr), (1,1,2-trichlorethane (1,1,2-TCA)), total organic carbon (TOC) high-salinity (233 g L-1 dissolved solids (TDS)) model FWW. By elucidating mechanisms contaminants, we demonstrated (1:1) had optimal reducing/charge-transfer reactivity owing homogenous distribution nZVI highest Fe0/Fe2+ ratio. lower content (0.5:1) resulted rapid exhaustion Fe0, while higher (2:1) caused severe aggregation oxidization contributing its complexation/(co-)precipitation Fe2+/Fe3+. All synthesized exhibited high capacity (3.2-7.2 g-1) FWW through bridging cation-π interactions. Overall, this study illustrated potential efficacy mechanistic roles (pre-)treatment complex

Language: Английский

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Magnetic biochar for environmental remediation: A review

Bioresource Technology, Journal Year: 2019, Volume and Issue: 298, P. 122468 - 122468

Published: Nov. 21, 2019

Language: Английский

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Mesoporous magnetic biochar composite for enhanced adsorption of malachite green dye: Characterization, adsorption kinetics, thermodynamics and isotherms

Advanced Powder Technology, Journal Year: 2020, Volume and Issue: 31(3), P. 1253 - 1263

Published: Jan. 17, 2020

Language: Английский

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Fabrication and characterization of hydrophilic corn stalk biochar-supported nanoscale zero-valent iron composites for efficient metal removal

Bioresource Technology, Journal Year: 2018, Volume and Issue: 265, P. 490 - 497

Published: June 15, 2018

Language: Английский

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Preparation, environmental application and prospect of biochar-supported metal nanoparticles: A review

Journal of Hazardous Materials, Journal Year: 2020, Volume and Issue: 388, P. 122026 - 122026

Published: Jan. 7, 2020

Language: Английский

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Effects of ionic strength on removal of toxic pollutants from aqueous media with multifarious adsorbents: A review

The Science of The Total Environment, Journal Year: 2018, Volume and Issue: 646, P. 265 - 279

Published: July 21, 2018

Language: Английский

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Hydroxyapatite modified sludge-based biochar for the adsorption of Cu2+ and Cd2+: Adsorption behavior and mechanisms

Bioresource Technology, Journal Year: 2020, Volume and Issue: 321, P. 124413 - 124413

Published: Nov. 16, 2020

Language: Английский

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A novel Biochar modified by Chitosan-Fe/S for tetracycline adsorption and studies on site energy distribution

Bioresource Technology, Journal Year: 2019, Volume and Issue: 294, P. 122152 - 122152

Published: Sept. 16, 2019

Language: Английский

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