The addition of biochar as a fertilizer supplement for the attenuation of potentially toxic elements in phosphogypsum-amended soil

Peng, Xin; Deng, Yinger; Liu, Lu; Tian, Xu; Gang, Shenting; Wei, Zhicheng; Zhang, Xiangda; Yue, Kai

doi:10.1016/j.jclepro.2020.124052

Cited by 27 publications

(7 citation statements)

References 40 publications

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“…Conversely, the Sudan grass seedlings treated with T9 survived harvest because the addition of biochar improved the internal environment of phosphogypsum through multiple pathways such as nutrient supply, pH regulation, and heavy metal toxicity regulation [28]. Under the T1 treatment, Sudan grass seedlings did not die during harvest, but their plant height, root fresh weight, aboveground fresh weight, and total fresh weight were all lower than those of the T2-T7 treatments.…”

Section: Discussionmentioning

confidence: 96%

Influence of EMR–Phosphogypsum–Biochar Mixtures on Sudan Grass: Growth Dynamics and Heavy Metal Immobilization

Luo,

Liu,

Luo

et al. 2024

Agronomy

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This study investigates the growth dynamics and heavy metal immobilization in Sudan grass cultivated on substrates composed of electrolytic manganese residue (EMR), phosphogypsum, and chili straw biochar. Pot experiments revealed that a substrate with phosphogypsum constituting 75% of the mix hinders Sudan grass seed germination. Compared with sole EMR utilization, the composite substrates notably enhanced plant growth, evidenced by increases in plant height and fresh weight. The integration of these substrates led to a significant elevation in total chlorophyll content (up to 54.39%) and a reduction in malondialdehyde (MDA) levels (up to 21.66%), indicating improved photosynthetic activity and lower oxidative stress. The addition of biochar reduced the content of Zn, Cd, and Mn in the roots of Sudan grass by up to 25.92%, 20.00%, and 43.17%, respectively; and reduced the content of Pb, Mn, and Cr in the shoot by up to 33.72%, 17.53%, and 26.32%, respectively. Fuzzy membership function analysis identified the optimal substrate composition as 75% EMR and 25% phosphogypsum, with 5% chili straw biochar, based on overall performance metrics. This study adopts the concept of “to treat waste with waste”. The approach is to fully consider the fertility characteristics of EMR, phosphogypsum, and biochar, underscoring the potential for utilizing waste-derived materials in cultivating Sudan grass and offering a sustainable approach to plant growth and heavy metal management.

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Section: Discussionmentioning

confidence: 96%

Influence of EMR–Phosphogypsum–Biochar Mixtures on Sudan Grass: Growth Dynamics and Heavy Metal Immobilization

Luo,

Liu,

Luo

et al. 2024

Agronomy

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“…Therefore, the coexistence of the 4 þ and 3 þ states of Ce is indicative of a synergistic interaction between the redox pairs Fe 3þ /Fe 2þ and Ce 4þ / Ce 3þ , at the vacant oxygen sites in the material through a redox equilibrium [58,59]. The deconvolution of Ca2p is shown in Figure 4e), where two energies are presented at 347.47 and 351.07 eV, which are associated with Ca 2p3/2 and Ca 2p1/2, respectively corresponding to CaCO 3 [60,61].…”

Section: Characterizationmentioning

confidence: 95%

Obtention of biochar-Fe/Ce using Punica granatum with high adsorption of ampicillin capacity

Gómez-Vilchis

García-Rosales

Longoria-Gándara

et al. 2022

Heliyon

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This research presents the obtaining of a biochar (CB) from the use of pomegranate peel (Punica granatum) conditioned with iron and cerium nanoparticles (C-Fe/Ce), as well as its characterization by SEM (Scanning Electronic Microscopy), FTIR (Fourier Transform Infrared Spectrometry), TGA (Thermogravimetric analysis), EDS (Energy Dispersive Spectroscopy), XPS (X-Ray Photoelectron Spectroscopy) and evaluation of the adsorption capacity of ampicillin (AMP) in aqueous phase at 20, 30 and 40 C. The maximum adsorption capacity for CB was 18.97 mg g À1 and for C-Fe/Ce, 27.61 mg g À1 at pH of 7, observing that with increasing temperature, the sorption capacity decreases in both materials, the experimental data was fitted to various mathematical models and the best fit was the pseudo-second order model for the kinetics, whilst for the adsorption isotherms the best fit was with the Langmuir model, indicating that the adsorption process is carried out in a monolayer on a homogeneous surface, through a chemisorption process. According to the thermodynamic parameters this process is carried out through an exothermic reaction. The results obtained indicate that both materials are suitable for the removal of AMP in the aqueous phase and that they can be reused up to 5 times.

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“…In comparison with biochar originating from different feedstocks (kenaf stems [59] and rice husk [60]) treated by pyrolysis, the most significant differences were in Cl and Na 2 O mass fractions. High mass fractions of these two compounds may be caused by pretreatment of the pistachio before selling-the addition of NaCl for their flavouring.…”

Section: Characterization Of Carbonaceous Materialsmentioning

confidence: 96%

Co-Gasification of Pistachio Shells with Wood Pellets in a Semi-Industrial Hybrid Cross/Updraft Reactor for Producer Gas and Biochar Production

Ryšavý,

Čespiva,

Kuboňová

et al. 2024

Fire

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The possibilities of pistachio shell biochar production on laboratory-scale gasification and pyrolysis devices have been described by several previous studies. Nevertheless, the broader results of the pistachio shell co-gasification process on pilot-scale units have not yet been properly investigated or reported, especially regarding the detailed description of the biochar acquired during the routine operation. The biochar was analysed using several analytical techniques, such as ultimate and proximate analysis (62%wt of C), acid–base properties analysis (pH 9.52), Fourier-transform infrared spectroscopy (the presence of –OH bonds and identification of cellulose, hemicellulose and lignin), Raman spectroscopy (no determination of Id/Ig ratio due to high fluorescence), and nitrogen physisorption (specific surface 50.895 m2·g−1). X-ray fluorescence analysis exhibited the composition of the main compounds in the biochar ash (32.5%wt of Cl and 40.02%wt of Na2O). From the energy generation point of view, the lower heating value of the producer gas achieved 6.53 MJ·m−3 during the co-gasification. The relatively high lower heating value of the producer gas was mainly due to the significant volume fractions of CO (6.5%vol.), CH4 (14.2%vol.), and H2 (4.8 %vol.), while hot gas efficiency accomplished 89.6%.

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The addition of biochar as a fertilizer supplement for the attenuation of potentially toxic elements in phosphogypsum-amended soil

Cited by 27 publications

References 40 publications

Influence of EMR–Phosphogypsum–Biochar Mixtures on Sudan Grass: Growth Dynamics and Heavy Metal Immobilization

Influence of EMR–Phosphogypsum–Biochar Mixtures on Sudan Grass: Growth Dynamics and Heavy Metal Immobilization

Obtention of biochar-Fe/Ce using Punica granatum with high adsorption of ampicillin capacity

Co-Gasification of Pistachio Shells with Wood Pellets in a Semi-Industrial Hybrid Cross/Updraft Reactor for Producer Gas and Biochar Production

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