Biochar as a potential strategy for remediation of contaminated mining soils: Mechanisms, applications, and future perspectives

Gao, Yining; Wu, Pan; Jeyakumar, Paramsothy; Bolan, Nanthi; Wang, Hailong; Gao, Bin; Wang, Shengsen; Wang, Bing

doi:10.1016/j.jenvman.2022.114973

Cited by 87 publications

(17 citation statements)

References 117 publications

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“…With the industrial revolution, extensive mining of coal and other natural resources has led to contaminated environment worldwide (Maiti 2013 ; Ahirwal and Maiti 2018 ). A variety of conventional remediation technologies are used for environmental decontamination, and new innovative methods are constantly being developed (Zhang et al 2017 ; O’Connor et al 2018 ; Souza et al 2020 ; Gao et al 2022 ). However, these technologies frequently rely on the practice of chemical compounds, fossil fuels, and grid-supplied electricity, associated with environmental footprint (Hou et al 2018 ).…”

Section: Phytoremediation — a Nature-based Solution (Nbs) For Mine Re...mentioning

confidence: 99%

Steering restoration of coal mining degraded ecosystem to achieve sustainable development goal-13 (climate action): United Nations decade of ecosystem restoration (2021–2030)

Bandyopadhyay

Maiti

2022

Environ Sci Pollut Res

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For millennium, mining sector is a source not only of mineral extraction for industrialization, economic expansion, and urban sprawling, but also of socio-environmental concern. It, therefore, has been the central attention of the business and public policy sustainable development scheme for several years. Thus, gradually, mining industries are getting involved with the concerns such as carbon emissions mitigation and carbon accounting to govern a rhetorical shift towards “sustainable mining”. However, there is scarce knowledge about how the emergence of a “green and self-sustaining” forestry reclamation strategy coupled with potential carbon sequestration capacity in degraded mining areas will be an impeccable option for achieving sustainable development goal-13 (SDG-13: climate action) and ecosystem services during United Nation decade of ecosystem restoration. This paper reviews the extent to which reforestation and sustainable land management practices that employed to enhance ecosystem carbon pool and atmospheric CO 2 sequestration capacity to offset CO 2 emission and SOC (soil organic carbon) losses, as consequences of coal mining, to partially mitigate global climate crisis. Moreover, future research is required on mining innovation concepts and its challenges for designing an SDG impact framework, so that it not only synergies amongst SDGs, but also trade-offs between each individual “politically legitimized post-2015 development agenda” (i.e. UNSDGs) could be depicted in a systematic way. In a developing country like India, it is also an utmost need to assess the environmental impact and economic performance of such technological innovation and its possible synergistic effect. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s11356-022-23699-x.

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Section: Phytoremediation — a Nature-based Solution (Nbs) For Mine Re...mentioning

confidence: 99%

Steering restoration of coal mining degraded ecosystem to achieve sustainable development goal-13 (climate action): United Nations decade of ecosystem restoration (2021–2030)

Bandyopadhyay

Maiti

2022

Environ Sci Pollut Res

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“…VR can also be converted to biochar, which can then be used for the remediation of heavy metal-contaminated soil and water. Biochar is a solid, carbonaceous, porous product produced by the pyrolytic conversion of organic biomass in an oxygen-limited atmosphere [ 116 ]. It is characterized by high porosity, large surface area and abundant functional groups.…”

Section: Resource Recovery Technologies Of Vrmentioning

confidence: 99%

“…It is characterized by high porosity, large surface area and abundant functional groups. Several researchers have reported that biochar can remediate heavy metal-contaminated water and soil through mechanisms of ion exchange, complexation, redox, precipitation and electrostatic interactions ( Figure 5 B) [ 116 ]. Biochar prepared with VR in an oxygen-limited atmosphere at 700 °C has been proven to be a promising amendment for Cd remediation in water and soil [ 38 ].…”

Section: Resource Recovery Technologies Of Vrmentioning

confidence: 99%

“…Therefore, to reduce the possible risks associated with biochar, more attention should be given to the long-term effects and risk assessment of biochar on soil. For example, heavy metals immobilized on biochar may be rereleased due to chemical, physical and biological degradation caused by weathering aging [ 116 ].…”

Section: Resource Recovery Technologies Of Vrmentioning

confidence: 99%

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A Review of the Current State and Future Prospects in Resource Recovery of Chinese Cereal Vinegar Residue

Wang

Liu

et al. 2022

Foods

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Vinegar residue (VR) is a typical organic solid waste in Chinese cereal vinegar production. It is characterized by high yield, high moisture and low pH and is rich in lignocellulose and other organic matter. To avoid the environmental pollution caused by VR, it should be properly treated. The industry’s existing treatment processes, landfills and incineration, cause secondary pollution and waste of resources. Therefore, there is an urgent demand for environmentally friendly and cost-effective resource recovery technologies for VR. To date, a considerable amount of research has been performed in the area of resource recovery technologies for VR. This review summarizes the reported resource recovery technologies, mainly anaerobic digestion, feed production, fertilizer production, high-value product production and soil/water remediation. The principles, advantages and challenges of these technologies are highlighted. Finally, as a future perspective, a cascade and full utilization model for VR is proposed by considering the inherent drawbacks and economic-environmental feasibility of these technologies.

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“…Biochar is the product of the pyrolysis of organic solid wastes under anoxic or limited oxygen conditions (Gao et al, 2022). Several types of biochars have been reported to be efficient in immobilizing heavy metals through mechanisms such as adsorption, surface precipitation and electrostatic interaction (Alam et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Field verification of low-level biochar applications as effective ameliorants to mitigate cadmium accumulation into Brassica campestris L from polluted soils

Zhang

Liu²,

Lin

et al. 2023

Front. Environ. Sci.

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Introduction: Cadmium (Cd) has been recognized as a significant contributor to the pollution of farmland soils in China, and biochars have been reported to be effective in mitigating soil Cd pollution. However, most studies have been conducted in laboratory or greenhouse settings, not at a field scale, and the biochars used have been applied at unrealistically high amounts (>10 t/ha).Methods: In this research, three biochars: rice straw biochar (RSB), pig manure biochar (PMB) and rice husk biochar (RHB) were produced from readily available farm residues. Then the effects at low-level application (1.8 and 3.6 t/ha) on Cd were investigated in a field experiment cropped with rape (Brassica campestris L.).Results: Batch adsorption experiments indicated Cd adsorption capacity of three biochars followed the order of RSB (43.5 mg/g) > PMB (33.3 mg/g) > RHB (24.4 mg/g). Field experiment indicated biochar amendments could slightly change soil pH and cation exchange capacity (CEC); yet led to considerable and significant decreases in extractable Cd concentrations [reductions of: 43%–51% (PMB), 29%–35% (RSB) and 17%–19% (RHB)]. Reduced extractable Cd correlated with lower Cd concentrations in rape plants. PMB and RSB were more effective in decreasing Cd phytoaccumulation into edible parts of rape (>68% reduction) than RHB.Discussion: Low-level application of PMB or RSB could efficiently decrease the phytoaccumulation of Cd from soils into crops. These results demonstrate the reality of biochar-based remediation solutions to contribute to the mitigation of diffuse Cd contamination in farmland. The results also highlight the need to trail biochars in the presence of the soil to be targeted for remediation.

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Biochar as a potential strategy for remediation of contaminated mining soils: Mechanisms, applications, and future perspectives

Cited by 87 publications

References 117 publications

Steering restoration of coal mining degraded ecosystem to achieve sustainable development goal-13 (climate action): United Nations decade of ecosystem restoration (2021–2030)

Steering restoration of coal mining degraded ecosystem to achieve sustainable development goal-13 (climate action): United Nations decade of ecosystem restoration (2021–2030)

A Review of the Current State and Future Prospects in Resource Recovery of Chinese Cereal Vinegar Residue

Field verification of low-level biochar applications as effective ameliorants to mitigate cadmium accumulation into Brassica campestris L from polluted soils

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