Pros and Cons of Biochar to Soil Potentially Toxic Element Mobilization and Phytoavailability: Environmental Implications

Shaheen, Sabry M.; Mosa, Ahmed; Natasha,; Jeyasundar, Parimala Gnana Soundari Arockiam; Hassan, Noha E.E.; Yang, Xing; Antoniadis, Vasileios; Li, Ronghua; Wang, Jianxu; Zhang, Tao; Niazi, Nabeel Khan; Shahid, Muhammad; Sharma, Gaurav; Alessi, Daniel S.; Vithanage, Meththika; Chen, Hsin-Yu; Sarmah, Ajit K.; Sarkar, Binoy; Zhang, Zengqiang; Hou, Deyi; Gao, Bin; Wang, Hailong; Bolan, Nanthi; Rinklebe, Jörg

doi:10.1007/s41748-022-00336-8

Cited by 34 publications

(4 citation statements)

References 167 publications

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“…Previous studies have found that peanut-shell-biochar significantly reduced the bioavailable concentration of Cr, Ni, As, Cd, and Pb in the soil as well as their accumulation in Brassica rapa [ 40 ]. The raw materials, pyrolysis temperature, and duration of biochar will affect its adsorption efficiency [ 41 ]. Generally, the stability and pH of biochar pyrolyzed at high temperatures are higher, and the effect is better [ 42 ].…”

Section: Discussionmentioning

confidence: 99%

Microorganisms and Biochar Improve the Remediation Efficiency of Paspalum vaginatum and Pennisetum alopecuroides on Cadmium-Contaminated Soil

Liang

Chang

Xie

et al. 2023

Toxics

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Phytoremediation can help remediate potential toxic elements (PTE) in soil. Microorganisms and soil amendments are effective means to improve the efficiency of phytoremediation. This study selected three microorganisms that may promote phytoremediation, including bacteria (Ceratobasidium), fungi (Pseudomonas mendocina), and arbuscular-mycorrhizal fungi (AMF, Funneliformis caledonium). The effects of single or mixed inoculation of three microorganisms on the phytoremediation efficiency of Paspalum vaginatum and Pennisetum alopecuroides were tested under three different degrees of cadmium-contaminated soil (low 10 mg/kg, medium 50 mg/kg, and high 100 mg/kg). The results showed that single inoculation of AMF or Pseudomonas mendocina could significantly increase the biomass of two plants under three different degrees of cadmium-contaminated soil, and the growth-promoting effect of AMF was better than Pseudomonas mendocina. However, simultaneous inoculation of these two microorganisms did not show a better effect than the inoculation of one. Inoculation of Ceratobasidium reduced the biomass of the two plants under high concentrations of cadmium-contaminated soil. Among all treatments, the remediation ability of the two plants was the strongest when inoculated with AMF alone. On this basis, this study explored the effect of AMF combined with corn-straw-biochar on the phytoremediation efficiency of Paspalum vaginatum and Pennisetum alopecuroides. The results showed that biochar could affect plant biomass and Cd concentration in plants by reducing Cd concentration in soil. The combined use of biochar and AMF increased the biomass of Paspalum vaginatum by 8.9–48.6% and the biomass of Pennisetum alopecuroides by 8.04–32.92%. Compared with the single use of AMF or biochar, the combination of the two is better, which greatly improves the efficiency of phytoremediation.

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Section: Discussionmentioning

confidence: 99%

Microorganisms and Biochar Improve the Remediation Efficiency of Paspalum vaginatum and Pennisetum alopecuroides on Cadmium-Contaminated Soil

Liang

Chang

Xie

et al. 2023

Toxics

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“…Interestingly, the converse effect of the interaction between biochar and PTE mobilization can be strategically utilized. Biochar's potential as a mobilizing agent can be harnessed to enhance phytoremediation efforts for heavy-metalcontaminated soils, particularly PTEs [119].…”

Section: Pros and Cons Of Biocharmentioning

confidence: 99%

Biochar as an Environment-Friendly Alternative for Multiple Applications

Yadav,

Ramakrishna

2023

Sustainability

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The climate crisis and years of unsustainable agricultural practices have reduced soil fertility and crop yield. In addition, agricultural lands contribute more than 10% of greenhouse gases (GHGs). These concerns can be addressed by using biochar for carbon neutralization, environmental restoration, and agricultural management. Biochar has a role in nitrous oxide and methane gas emission mitigation from agricultural soil. New methods are needed to link belowground processes to functioning in multi-species and multi-cultivar agroecosystems. The intricate relationship between biochar and the composition of soil microbial communities, along with its impacts on functions within the rhizosphere, constitutes a highly perplexing and elusive subject within microbial genomics. The present review discusses how biochar can mitigate climate change, enhance carbon sequestration, and support crop productivity. Biochar could be a potential solution to mitigate soil microplastics and heavy metal contamination. Applying a biochar-based microbiome reduces polycyclic aromatic hydrocarbons (PAHs) in soil. The current knowledge and perspectives on biochar–plant–microbial interactions for sustainable agriculture and ameliorating the adverse effects of climate change are highlighted. In this review, a holistic approach was used to emphasize the utility of biochar for multiple applications with positive and negative effects and its role in promoting a functional circular economy.

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“…Thermal conversion of biomass waste into biochar often produces low-cost adsorbents (Ippolito et al 2020;Shaheen et al 2022b). Biochar and other biomass-derived carbon materials are widely used for soil remediation (Hu et al 2020;Papageorgiou et al 2021;Bolster 2021;Shaheen et al 2023) and water purification (Heo et al 2019;Jie et al 2019;Huang et al 2019;Peng et al 2022). However, conventional carbon materials, including biochar, have limited sorption ability to anionic pollutants because of the high negative charges on their surfaces under conditions of non-optimal pH.…”

Section: Introductionmentioning

confidence: 99%

Bio-assembled MgO-coated tea waste biochar efficiently decontaminates phosphate from water and kitchen waste fermentation liquid

Feng

Zhang

et al. 2023

Biochar

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Crystal morphology of metal oxides in engineered metal-biochar composites governs the removal of phosphorus (P) from aqueous solutions. Up to our best knowledge, preparation of bio-assembled MgO-coated biochar and its application for the removal of P from solutions and kitchen waste fermentation liquids have not yet been studied. Therefore, in this study, a needle-like MgO particle coated tea waste biochar composite (MTC) was prepared through a novel biological assembly and template elimination process. The produced MTC was used as an adsorbent for removing P from a synthetic solution and real kitchen waste fermentation liquid. The maximum P sorption capacities of the MTC, deduced from the Langmuir model, were 58.80 mg g−1 from the solution at pH 7 and 192.8 mg g−1 from the fermentation liquid at pH 9. The increase of ionic strength (0–0.1 mol L−1 NaNO3) reduced P removal efficiency from 98.53% to 93.01% in the synthetic solution but had no significant impact on P removal from the fermentation liquid. Precipitation of MgHPO4 and Mg(H2PO4)2 (76.5%), ligand exchange (18.0%), and electrostatic attraction (5.5%) were the potential mechanisms for P sorption from the synthetic solution, while struvite formation (57.6%) and ligand exchange (42.2%) governed the sorption of P from the kitchen waste fermentation liquid. Compared to previously reported MgO-biochar composites, MTC had a lower P sorption capacity in phosphate solution but a higher P sorption capacity in fermentation liquid. Therefore, the studied MTC could be used as an effective candidate for the removal of P from aqueous environments, and especially from the fermentation liquids. In the future, it will be necessary to systematically compare the performance of metal-biochar composites with different metal oxide crystal morphology for P removal from different types of wastewater. Graphical Abstract

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Pros and Cons of Biochar to Soil Potentially Toxic Element Mobilization and Phytoavailability: Environmental Implications

Cited by 34 publications

References 167 publications

Microorganisms and Biochar Improve the Remediation Efficiency of Paspalum vaginatum and Pennisetum alopecuroides on Cadmium-Contaminated Soil

Microorganisms and Biochar Improve the Remediation Efficiency of Paspalum vaginatum and Pennisetum alopecuroides on Cadmium-Contaminated Soil

Biochar as an Environment-Friendly Alternative for Multiple Applications

Bio-assembled MgO-coated tea waste biochar efficiently decontaminates phosphate from water and kitchen waste fermentation liquid

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