Both Sides of Coin: Benefits and Potential Negative Consequences of Biochar in Sediment Remediation

Pan, Yuwei; Chen, Hanbo; Bolan, Nanthi; Sarkar, Binoy; Wang, Hailong; Chen, Chongjun

doi:10.1007/s44169-023-00028-y

Cited by 3 publications

(1 citation statement)

References 110 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Changes in microbial communities and enzyme activity in sediment ecosystems are the two most important factors [122]. Biochar can directly or indirectly affect the local microbial community structure and enzyme activity by changing the physicochemical properties of sediments and the concentration of potentially toxic elements and organic pollutants [123]. According to the results of previous studies, the effects of different types and quantities of biochar on water and sediment are very different.…”

Section: Potential Risks To Sediment Environments From the Use Of Mod...mentioning

confidence: 99%

The Effect of Iron-Modified Biochar on Phosphorus Adsorption and the Prospect of Synergistic Adsorption between Biochar and Iron-Oxidizing Bacteria: A Review

Liu,

He,

Borham

et al. 2023

Water

View full text Add to dashboard Cite

The release of endogenous phosphorus (P) from sediments is the main cause of lake eutrophication, even after the successful control of exogenous P. Among others, the release of iron-bound P is a major source of endogenous P, and it is necessary to reduce the P concentration by enhancing iron–phosphorus binding. Iron (Fe)-modified biochar adsorption is an effective and widely used method for fixing P in sediments. In this paper, the modification method, mechanism, and application effect of Fe-modified biochar are reviewed. It is found that most of the modification methods are realized through a physicochemical pathway. Therefore, the prospect of biochar modification through a biological pathway is presented. In particular, the possible application of iron-oxidizing bacteria (IOB) for promoting iron–phosphorus binding and biochar modifications is discussed. The potential effects of biochar additions on microbial communities in water and sediments are also discussed. In the future research, emphasis should be placed on the adsorption mechanism and effect analysis in simulated polluted environments before large-scale use, to ensure the economic practicability and sustainability of Fe-modified biochar applications.

show abstract

Section: Potential Risks To Sediment Environments From the Use Of Mod...mentioning

confidence: 99%

The Effect of Iron-Modified Biochar on Phosphorus Adsorption and the Prospect of Synergistic Adsorption between Biochar and Iron-Oxidizing Bacteria: A Review

Liu,

He,

Borham

et al. 2023

Water

View full text Add to dashboard Cite

show abstract

Submerged plant-biochar composite system exhibits effective control over residual organic pollutants in the benthic organisms of aquaculture ponds

Li,

Yao,

et al. 2024

Environmental Pollution

View full text Add to dashboard Cite

Zea mays cultivation, biochar, and arbuscular mycorrhizal fungal inoculation influenced lead immobilization

Jia,

Sun,

Gan

et al. 2024

Microbiol Spectr

View full text Add to dashboard Cite

Plant cultivation can influence the immobilization of heavy metals in soil. However, the roles of soil amendments and microorganisms in crop-based phytoremediation require further exploration. In this study, we evaluated the impact of Zea mays L. cultivation, biochar application, and arbuscular mycorrhizal fungi (AMF) inoculation on soil lead (Pb) immobilization. Our results indicated that biochar addition resulted in a significant, 42.00%, reduction in AMF colonization. Plant cultivation, AMF inoculation, and biochar addition all contributed to enhanced Pb immobilization, as evidenced by decreased levels of diethylenetriaminepentaacetic acid- and CaCl 2 -extractable Pb in the soil. Furthermore, soil subjected to plant cultivation with AMF and biochar displayed reduced concentrations of bioavailable Pb. Biochar addition altered the distribution of Pb fractions in the soil, transforming the acid-soluble form into the relatively inert reducible and oxidizable forms. Additionally, biochar, AMF, and their combined use promoted maize growth parameters, including height, stem diameter, shoot and root biomass, and phosphorus uptake, while simultaneously reducing the shoot Pb concentration. These findings suggest a synergistic effect in Pb phytostabilization. In summary, despite the adverse impact of biochar on mycorrhizal growth, cultivating maize with the concurrent use of biochar and AMF emerges as a recommended and effective strategy for Pb phytoremediation. IMPORTANCE Heavy metal contamination in soil is a pressing environmental issue, and phytoremediation has emerged as a sustainable approach for mitigating this problem. This study sheds light on the potential of maize cultivation, biochar application, and arbuscular mycorrhizal fungi (AMF) inoculation to enhance the immobilization of Pb in contaminated soil. The findings demonstrate that the combined use of biochar and AMF during maize cultivation can significantly improve Pb immobilization and simultaneously enhance maize growth, offering a promising strategy for sustainable and effective Pb phytoremediation practices. This research contributes valuable insights into the field of phytoremediation and its potential to address heavy metal pollution in agricultural soils.

show abstract

Both Sides of Coin: Benefits and Potential Negative Consequences of Biochar in Sediment Remediation

Cited by 3 publications

References 110 publications

The Effect of Iron-Modified Biochar on Phosphorus Adsorption and the Prospect of Synergistic Adsorption between Biochar and Iron-Oxidizing Bacteria: A Review

The Effect of Iron-Modified Biochar on Phosphorus Adsorption and the Prospect of Synergistic Adsorption between Biochar and Iron-Oxidizing Bacteria: A Review

Submerged plant-biochar composite system exhibits effective control over residual organic pollutants in the benthic organisms of aquaculture ponds

Zea mays cultivation, biochar, and arbuscular mycorrhizal fungal inoculation influenced lead immobilization

Contact Info

Product

Resources

About