Utilization of biochar prepared by invasive plant species Alternanthera philoxeroides to remove phenanthrene co-contaminated with PCE from aqueous solutions

Liu, Xin; Wang, Qing; Song, Xin; Li, Kang; Ali, Mukhtiar; Wei, Changlong; Che, Jilu; Guo, Siwei; Dou, Xuedan

doi:10.1007/s13399-022-02720-w

Cited by 4 publications

(3 citation statements)

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“…Insights into surface functional groups prove helpful in assessing IAPS‐derived biochars adsorption mechanisms. The FT‐IR spectra showed peaks at 1380 and 1118 cm −1 , that are associated with –CH 2 and C–O vibrations, respectively (Liu et al., 2022). Different peaks in the 900–750 cm −1 range indicate aromatic C–H out‐of‐plane deformation (Mireles et al., 2019).…”

Section: Discussionmentioning

confidence: 99%

“…Studies have also focused on the biochar adsorption of organic pollutants. Since C-O, C=O, and C=C groups can be effective in removing organic pollutants (Liu et al, 2022;Zhang et al, 2018) we can suppose that the biochar we produced may also have a potential in the remediation of organic pollutants. Also, biochar can create ecological niches for soil microorganisms, stimulating their growth, pollutant degradation (Brewer et al, 2014), and mineralization (Ni et al, 2020).…”

Section: Soil Remediation Potentialmentioning

confidence: 99%

“…Moreover, the high carbon stability of biochar determines its potential for carbon sequestration when incorporated into the soil (Leng et al., 2019). These properties have only recently begun to be tested on IAPS‐derived biochar (e.g., Fan et al., 2019; Feng et al., 2021; Liu et al., 2022). Indeed, the conventional feedstock for biochar production is fill material, straw, and wood waste (Wang et al., 2021).…”

Section: Introductionmentioning

confidence: 99%

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Woody and herbaceous invasive alien plant species‐derived biochars are potentially optimal for soil amendment, soil remediation, and carbon storage

Ceriani,

Dalle Fratte,

Agosto

et al. 2024

GCB Bioenergy

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Invasive alien plant species (IAPS) are a global problem, representing a threat to ecosystem functioning, biodiversity, and human health. Legislation requires the management and eradication of IAPS populations; yet, management practices are costly, require several interventions, and produce large amounts of waste biomass. However, the biomass of eradicated IAPS can become a resource by being used as feedstock for biochar production and, at the same time, implementing the management of IAPS. Here we carried out an in‐depth characterization of biochar produced at 550°C derived from 10 (five woody and five herbaceous) widespread IAPS in the central‐southern Alps region to determine their potential applications for soil amendment, soil remediation, and carbon storage. Biochar was produced at a laboratory scale, where its physicochemical characteristics, micromorphological features, and lead adsorption from aqueous solutions were measured. To investigate any possible trade‐offs among the potential biochar applications, a principal component analysis was performed. IAPS‐derived biochars exhibited relevant properties in different fields of application, suggesting that IAPS biomass can be exploited in a circular economy framework. We found coordinated variation and trade‐offs from biochars with high stability to biochars with high soil amendment potential (PC1), while the biochar soil remediation potential represents an independent axis of variation (PC2). Specifically, IAPS‐derived biochar had species‐specific characteristics, with differences between the woody and herbaceous IAPS, the latter being more suitable for soil amendment due to their greater pH, macronutrient content, and macropore area. Biochar derived from woody IAPS showed a greater surface area, smaller pores, and had higher lead adsorption potentials from aqueous solutions, hinting at their higher potential for heavy metal pollution remediation. Moreover, biochar derived from woody IAPS had a higher fixed carbon content, indicating higher carbon stability, and suggesting that their biochar is preferable for carbon sequestration in the view of climate change mitigation.

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Section: Discussionmentioning

confidence: 99%