Effects of biochar aging in the soil on its mechanical property and performance for soil CO2 and N2O emissions

Lin, Wang; Gao, Chaochao; Yang, Kun; Sheng, Yaqi; Xu, Jiang; Zhao, Yuxiang; Lou, Jie; Sun, Rui; Zhu, Lizhong

doi:10.1016/j.scitotenv.2021.146824

Cited by 96 publications

(33 citation statements)

References 59 publications

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“…However, the surface of FBC was rough and has some attached aggregates shown in Figure 2(a) and (b). These SEM results illustrated that the small particles attached on FBC surface may be labile fractions or soluble substances (e.g., CaCO 3 as shown in Figure 3) from the pyrolysis processes of corn straw [36].…”

Section: The Microstructure Of Field-aged Biocharmentioning

confidence: 81%

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Aged Biochar for the Remediation of Heavy Metal Contaminated Soil: Analysis through an Experimental Case the Physicochemical Property Changes of Field Aging Biochar and Its Effects on the Immobilization Mechanism for Heavy Metal

Zhang¹,

Shi²,

Li³

et al. 2023

Biochar - Productive Technologies, Properties and Applications

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Heavy metal inducing contamination soil has become a serious concern. Contaminated soil can cause physiochemical and biochemical changes into soil and the plants. Thus, the plant growth and the yield were affected. In additionally, that ultimately leads to the problem of food security and human health. In recent years, many kinds of ways were used for the remediation of heavy metal contaminated soil, such as isolation, phytoremediation, immobilization, extraction, and soil washing. As a new carbon-rich material, biochar has been applied to the remediation of heavy metal pollution in soil. As biochar is rich with porous structure, high cation exchange capacity, pH value, and surface function, it has become an adsorbent for soil heavy metal remediation. While, with time, the capacity of biochar to immobilize the heavy metals may be modified as the sorption sites may get occupied with native soil organic matter or competing contaminant, etc. And that the physicochemical properties of biochar changed significantly during field aging. Thus, to clarify the mechanism of field-aged biochar for the remediation of heavy metal contaminated soil, we analysis, through an experimental case, the physicochemical property changes of field-aged biochar and its effects on the immobilization mechanism for heavy metal.

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Section: The Microstructure Of Field-aged Biocharmentioning

confidence: 81%

“…In addition, the active component carbon and mineral nutrients in biochar can be used as its energy source by microorganisms in the soil environment [8,36]. Therefore, it is likely that microorganisms will attach to the ABC surface after it is applied to the soil.…”

Section: The Discussion Of Biochar Sorptionmentioning

confidence: 99%

Aged Biochar for the Remediation of Heavy Metal Contaminated Soil: Analysis through an Experimental Case the Physicochemical Property Changes of Field Aging Biochar and Its Effects on the Immobilization Mechanism for Heavy Metal

Zhang¹,

Shi²,

Li³

et al. 2023

Biochar - Productive Technologies, Properties and Applications

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“…Hydrochar is a potential adsorbent and carbon resource due to its special chemical structure. ,,, The application of hydrochar as a carbon source for water plants can avoid the need for conventional carbon sources, flocculants, and conditioners to be dosed in the water plant itself. Table S2 records the amount of energy consumed, emissions, and chemicals avoided in the unit.…”

Section: Resultsmentioning

confidence: 99%

A Life Cycle Assessment of the Combined Utilization of Biomass Waste-Derived Hydrochar as a Carbon Source and Soil Remediation

Chen

Jiang

2022

ACS EST Eng.

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The conversion of waste biomass to hydrochar by hydrothermal carbonation (HTC) treatment is a promising technology for waste management, and the thorough utilization of hydrochar can reduce the environmental load. Herein, a life cycle assessment (LCA) was performed to evaluate hydrochar as a carbon source in wastewater plants (WWTPs) and subsequently soil remediation. The simulated combined utilization of hydrochar showed that Bacillus subtilis may utilize the dissolved organic matter (DOM) of hydrochar that contains many aliphatic organic substances, and the microbially treated hydrochar retains most of the nutrients for crop growth. LCA shows that hydrochar could avoid 28% of the environmental load of WWTPs in terms of global warming (GWP100) and 47% of the environmental load of freshwater aquatic ecotoxicity and could reduce 54% of the environmental impact of soil fertilization in terms of eutrophication and 34% of GWP100 in soil remediation. Furthermore, LCA results indicate that hydrochar derived at 160 °C has the lowest environmental load in the combined utilization. This study proposes an optimized utilization of biomass wastes and extends the life cycle of derived hydrochar by experimental determination and the LCA method.

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“…The peaks at 27 and 28 refer to the diffraction peaks of carbonate. 20 The diffraction peaks of BC/LDH at 11, 22, 60, and 62 correspond to the typical LDH crystal plane of (003), (006), (010), and (013). 21 The modified LDH has the characteristic peak of wheat straw bichar, indicating the successful synthesis of the LBCA.…”

Section: Characterization Of Lbca Aerogelmentioning

confidence: 97%

Preparation of bichar/layered double hydroxide@alginate aerogel as a highly efficient adsorbent for Cu²⁺ and Cd²⁺

Liang

Pan

Zhang

et al. 2022

J of Applied Polymer Sci

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Calcium cross‐linked layered double hydroxide‐bichar/alginate aerogel (LBCA) was synthesized by ultrasonic‐assisted hydrothermal and freeze‐drying method. The Mg‐Al layered double hydroxide (LDH) was successfully loaded on the bichar (BC) and the LDH‐BC was dispersed uniformly in the calcium alginate aerogel, which was confirmed by X‐Ray Diffraction, scanning electron microscopy and BET tests. The obtained LBCA was applied to remove the Cu2+ and Cd2+ in the aqueous solution. As compared with LDH nanosheets, removal rates of LBCA aerogel on Cu2+ and Cd2+ were ranged from 59% to 94% and 45% to 86%, respectively. The adsorption kinetic data accorded with the pseudo second‐order kinetic equation, and the isotherm data were in good agreement with the Langmuir model. Moreover, LBCA aerogel showed good regeneration ability, and raw materials for the fabrication of LBCA aerogel are abundant and low price.

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Effects of biochar aging in the soil on its mechanical property and performance for soil CO2 and N2O emissions

Cited by 96 publications

References 59 publications

Aged Biochar for the Remediation of Heavy Metal Contaminated Soil: Analysis through an Experimental Case the Physicochemical Property Changes of Field Aging Biochar and Its Effects on the Immobilization Mechanism for Heavy Metal

Aged Biochar for the Remediation of Heavy Metal Contaminated Soil: Analysis through an Experimental Case the Physicochemical Property Changes of Field Aging Biochar and Its Effects on the Immobilization Mechanism for Heavy Metal

A Life Cycle Assessment of the Combined Utilization of Biomass Waste-Derived Hydrochar as a Carbon Source and Soil Remediation

Preparation of bichar/layered double hydroxide@alginate aerogel as a highly efficient adsorbent for Cu²⁺ and Cd²⁺

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Effects of biochar aging in the soil on its mechanical property and performance for soil CO2 and N2O emissions

Cited by 96 publications

References 59 publications

Aged Biochar for the Remediation of Heavy Metal Contaminated Soil: Analysis through an Experimental Case the Physicochemical Property Changes of Field Aging Biochar and Its Effects on the Immobilization Mechanism for Heavy Metal

Aged Biochar for the Remediation of Heavy Metal Contaminated Soil: Analysis through an Experimental Case the Physicochemical Property Changes of Field Aging Biochar and Its Effects on the Immobilization Mechanism for Heavy Metal

A Life Cycle Assessment of the Combined Utilization of Biomass Waste-Derived Hydrochar as a Carbon Source and Soil Remediation

Preparation of bichar/layered double hydroxide@alginate aerogel as a highly efficient adsorbent for Cu2+ and Cd2+

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Product

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Preparation of bichar/layered double hydroxide@alginate aerogel as a highly efficient adsorbent for Cu²⁺ and Cd²⁺