Pretreatment of straw using filamentous fungi improves the remediation effect of straw biochar on bivalent cadmium contaminated soil

Wang, Qun; Shao, Juncheng; Shen, Linpei; Xiu, Jianghui; Shan, Shengdao; Ma, Kangting

doi:10.1007/s11356-022-20177-2

Cited by 10 publications

(1 citation statement)

References 46 publications

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“…Furthermore, stillage residue derived-biochar was observed to remove silver ions from aqueous solutions with a maximum capacity of 90.06 mg/g (Yao et al 2015). Moreover, Biochars resulted from fermentation residues had been used to make soil remediation agents (Wang et al 2022) and heavy metal adsorbents (Zhang et al 2017). It reflects that applying pyrolysis to produce biochar from fermentation residues could be effective approach to reduce environment issues and recycling biomass energy.…”

Section: Introductionmentioning

confidence: 99%

Pyrolysis characteristics, kinetics, and biochar of fermented pine sawdust–based waste

Zhang

Cheng

et al. 2023

Environ Sci Pollut Res

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Pyrolysis characteristics, kinetics and modified biochar derived from pine sawdust after fermentation (FPD) were determined by Fourier Transform Infrared (FTIR), Thermogravimetric analysis (TG) and Scanning Electron Microscopy (SEM), and comparison was established with pine sawdust (PD). The pretreatment i.e. fermentation changed the properties of raw materials and improved the pyrolysis properties.The variation range of CPI values of FPD was 6.51×10 -7 -16.38×10 -7 % 2 •min -2 •°C -3 , significantly higher than that of untreated samples determined under the same experimental conditions. The average activation energy of FPD was 367.95 kJ/mol attained by Flynn-Wall-Ozawa (FWO) method, 389.45 kJ/mol by Kissinger-Akahira-Sonuse (KAS) and 346.55 kJ/mol attained by Starink method much higher than PD. Additionally, fermentation could enhance the adsorption capacity for methylene blue of biochar from 0.76 mg/g to 1.6mg/g due to the abundant surface functional groups and three-dimensional internal pore structure.The adsorption pattern of fermented pine wood shifted from chemisorption dominated to the synergetic adsorption of surface functional groups adsorption and intragranular filling. Pyrolysis kinetics and biochar determination provide an in-depth understanding of fermented pine sawdust pyrolysis behaviors and product characteristics, which is the basis for designing pyrolysis process and re-using fermentation residues.

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Section: Introductionmentioning

confidence: 99%