Biochar prepared from maize straw and molasses fermentation wastewater: application for soil improvement

Zhou, Yuan; Liu, Yongze; Feng, Li; Xu, Yanhong; Du, Zhaohui; Zhang, Liqiu

doi:10.1039/d0ra02038a

Cited by 8 publications

(5 citation statements)

References 57 publications

(71 reference statements)

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“…Additionally, application of biochar materials in farmlands or contaminated sites releases large quantities of micro- and nanosized biochar particles, − a significant portion of which may enter the atmospheric environment as dusts. , Accordingly, the abundance of FBPs in the environment is much higher than that of engineered nanoparticles . FBPs can actively participate in atmospheric photochemical reactions, resulting in the formation of atmospheric aerosols, and can pose ecotoxicological − and human respiratory risks. , Owing to their large surface area, porous structures, aromaticity, and surface oxygen-functionality, FBPs can accumulate various organic contaminants ( e.g ., polycyclic aromatic hydrocarbons (PAHs) and heavy metals), either during pyrolysis or in the environment ( e.g ., through adsorption of contaminants from the aqueous solutions). − Accordingly, the toxicological effects of contaminant-bearing FBPs should be attributed to the combined effects of both FBPs and the contaminants associated with these particles.…”

mentioning

confidence: 99%

Binding of Benzo[a]pyrene Alters the Bioreactivity of Fine Biochar Particles toward Macrophages Leading to Deregulated Macrophagic Defense and Autophagy

Liu

Yang

et al. 2021

ACS Nano

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Contaminant-bearing fine biochar particles (FBPs) may exert significantly different toxicity profiles from their contaminant-free counterparts. While the role of FBPs in promoting contaminant uptake has been recognized, it is unclear whether the binding of contaminants can modify the biochemical reactivity and toxicological profiles of FBPs. Here, we show that binding of benzo[a]pyrene (B(a)P, a model polycyclic aromatic hydrocarbon) at environmentally relevant exposure concentrations markedly alters the cytotoxicity of FBPs to macrophages, an important line of innate immune defense against airborne particulate matters (PMs). Specifically, B(a)P-bearing FBPs elicit more severe disruption of the phospholipid membrane, endocytosis, oxidative stress, autophagy, and compromised innate immune defense, as evidenced by blunted proinflammatory effects, compared with B(a)P-free FBPs. Notably, the altered cytotoxicity cannot be attributed to the dissolution of B(a)P from the B(a)P-bearing FBPs, but appears to be related to B(a)P adsorption-induced changes of FBPs bioreactivity toward macrophages. Our findings highlight the significance of environmental chemical transformation in altering the bioreactivity and toxicity of PMs and call for further studies on other types of carbonaceous nanoparticles and additional exposure scenarios.

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confidence: 99%

Binding of Benzo[a]pyrene Alters the Bioreactivity of Fine Biochar Particles toward Macrophages Leading to Deregulated Macrophagic Defense and Autophagy

Liu

Yang

et al. 2021

ACS Nano

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“…According to the infrared spectra of CsBC300 and CsBC600 ( Fig. 2 ), both biochars contained different functional groups, like stretching vibration with a broad hydroxyl peak around 3400 cm −1 [ 32 , 33 ]. The stretching vibration peak of aliphatic CH2 was around 2925 cm −1 [ 34 , 35 ].…”

Section: Resultsmentioning

confidence: 99%

Effects of biochar on the transformation of cadmium fractions in alkaline soil

Sun

Zhang

et al. 2023

Heliyon

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“…The specific surface area of biochar, in sandy soils, can also somewhat provide cation exchange capacity (Zhou et al, 2020), which is highly dependent on chemically reactive sites. These sites, in biochar, are formed over the years as the particles are attacked by microorganisms in the soil, changing the chemical and physical characteristics of the surface (Cohen-Ofri et al, 2006).…”

Section: Resultsmentioning

confidence: 99%

Thermal treatment of poultry litter: Part II. Evaluation of structural and morphological characteristics

Fernandes

Guerra

Chaves

et al. 2022

Rev. bras. eng. agríc. ambient.

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This study aimed to investigate the effect of heat treatments on the total pore volume, surface area of pores, structural characteristics, and functional groups of the materials which derive from the carbonization and pyrolysis of poultry litter. These processes were carried out in porcelain containers containing poultry litter samples, which were then placed in a muffle furnace. The treatments corresponded to three temperatures: samples carbonized at 250 °C and pyrolyzed at 350 and 450 °C. The surface porosity of biochars provides a suitable dimension to improve the water holding capacity, and surface functional groups may help to improve soil fertility. The influence of the temperatures on the pores of the biochar was investigated by using scanning electron microscopy with energy-dispersive x-ray spectroscopy, X-ray diffraction, and Fourier-transform infrared spectroscopy. The characterization of the biochar shows mesoporous structures, as well as increased surface area and pore volume. The chemical composition has potassium at higher concentrations than other metals, while similar surface functional groups were found in the biochar, such as phenolic, aliphatic, conjugated quinones, and OH-phenolic. The thermal treatments applied to poultry litter generated samples with similar physical, chemical, and structural characteristics. Thus, the production of biochar by the farmer and its use as a soil conditioner can contribute to the reduction of agricultural pollution, management, and efficient disposal of residual biomass.

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Biochar prepared from maize straw and molasses fermentation wastewater: application for soil improvement

Abstract: A novel method was applied to improve biochar properties and its soil application by introducing molasses fermentation wastewater into a maize straw pyrolysis process.

Cited by 8 publications

References 57 publications

Binding of Benzo[a]pyrene Alters the Bioreactivity of Fine Biochar Particles toward Macrophages Leading to Deregulated Macrophagic Defense and Autophagy

Binding of Benzo[a]pyrene Alters the Bioreactivity of Fine Biochar Particles toward Macrophages Leading to Deregulated Macrophagic Defense and Autophagy

Effects of biochar on the transformation of cadmium fractions in alkaline soil

Thermal treatment of poultry litter: Part II. Evaluation of structural and morphological characteristics

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