Production and properties assessment of biochars from rapeseed and poplar waste biomass for environmental applications in Romania

Gheorghe-Bulmau, Cora; Volceanov, Adrian; Stanciulescu, Iustina; Ionescu, Gabriela; Mărculescu, Cosmin; Radoiu, Marilena

doi:10.1007/s10653-021-01061-3

Cited by 5 publications

(3 citation statements)

References 45 publications

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“…Biochar, the solid fraction, preferential product of slow pyrolysis, is a carbon rich material, usually employed as soil recover to enhance its fertility [ 13 , 14 , 21 ]. Nowadays BC has attracted increasing interest as filler for polymer [ 22 , 23 , 24 , 25 , 26 ] and bio-polymer composites [ 27 , 28 , 29 ] due to several factors. In fact, biochar is characterized by a high amount of aromatic C and condensed aromatic structure, in different forms, including graphite; it also contains hydrogen, oxygen, nitrogen Sulphur calcium and silicon and the proportion between them depends on two main factors: the nature of biomass employed as well as the temperature used during pyrolysis.…”

Section: Introductionmentioning

confidence: 99%

Biochar Particles Obtained from Agricultural Carob Waste as a Suitable Filler for Sustainable Biocomposite Formulations

et al. 2022

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In the context of sustainable and circular economy, the recovery of biowaste for sustainable biocomposites formulation is a challenging issue. The aim of this work is to give a new life to agricultural carob waste after glucose extraction carried out by a local factory for carob candy production. A pyrolysis process was carried out on bio-waste to produce biofuel and, later, the solid residual fraction of pyrolysis process was used as interesting filler for biocomposites production. In this work, biochar particles (BC) as a pyrolysis product, after fuels recovery of organic biowaste, specifically, pyrolyzed carobs after glucose extraction, were added on poly(butylene-adipate-co-terephthalate), (PBAT), at two different concentrations, i.e., 10 and 20 wt%. The BC have been produced using three pyrolysis processing temperatures (i.e., 280, 340 and 400 °C) to optimize the compositions of produced solid fractions and biofuels. The resulting particles from the pyrolysis process (BC280, BC340 and BC400) were considered as suitable fillers for PBAT. Firstly, the BC particles properties were characterized by elemental composition and spectroscopy analysis, particle size measurements and evaluation of radical scavenging activity and efficiency. Moreover, PBAT/BC composites were subjected to analysis of their rheological and thermal behavior, morphologies and mechanical properties. In addition, accelerated weathering, monitored by both tensile test and spectroscopic analysis, was carried out, and obtained results show that the biochar particles can exert a beneficial effect on photo-oxidation delay of PBAT matrix.

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Section: Introductionmentioning

confidence: 99%

Biochar Particles Obtained from Agricultural Carob Waste as a Suitable Filler for Sustainable Biocomposite Formulations

et al. 2022

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“…However, in [104], pyrolyzing white poplar chips from 300 • C to 800 • C demonstrated that the carbon fraction increases to the temperature of 500/600 • C and then looks similar (if not slightly lower) to that of the initial biomass when reaching 700/800 • C. This finding is not confirmed by [12], who, pyrolyzing at 750 • C pine bark and eucalyptus sawdust, observes an increase in carbon content (%). Given the limited size of the sample considered, these results indicate that the carbon content in the biochar varies based on both the production process and the type of raw material used.…”

Section: Elemental Composition and Carbon Contentmentioning

confidence: 84%

New Frontiers for Raw Wooden Residues, Biochar Production as a Resource for Environmental Challenges

Di Domenico,

Bianchini,

Di Stefano

et al. 2024

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Biochar has gained significant interest in the agroforestry sector, mainly because of its ability to improve soil quality and sequester carbon in the atmosphere. Among the feedstocks of possible use for biochar production is biomass, understood as products and residues of plant origin from agriculture and forestry. The quality of the biomass used for biochar production is important because the physicochemical characteristics of the final product depend on it. This review examines the use of biochar produced from forest wastes and its impact on agriculture, forest ecosystems and the environment in general. This work demonstrates that the use of biochar not only improves agricultural productivity and production, but also that the sustainable management of the environment and forests and contributes to forest fire risk mitigation. The authors, examining the physico-chemical properties of biochar produced by forest waste, noted that the most critical variable is the process (pyrolysis temperature, residence time and heating rate), but the type of biomass used as a raw material and the forest species used also have a significant impact in determining the characteristics of the final product.

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“…Biomass carbonization technology is an important link for comprehensive utilization of biomass waste chain such as agricultural waste [32][33][34], kitchen waste [35], forest-based waste [36], industry-generated waste [37,38], and poultry waste [39,40]. Converting residue into biochar at the end of biomass comprehensive utilization can not only avoid secondary environmental hazards, but also realize the complete consumption of waste.…”

Section: Introductionmentioning

confidence: 99%

Characterization of isolated starch from Isatis indigotica Fort. root and anhydro-sugars preparation using its decoction residues

Gao

Lin

et al. 2023

Biomass Conv. Bioref.

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Isatis indigotica Fort. root (Ban-lan-gen, IIR), a traditional Chinese medicine (TCM), has an ancient and well-documented history for its medicinal properties. Aside from epigoitrin, indole alkaloids, and their corresponding derivatives as medicinal ingredients, it also contains lots of biomass such as starch. Herein, a new starch was isolated from IIR and the physicochemical properties such as amylose content, moisture content, ash content, morphology, thermal properties, and crystallography were characterized systematically. The amylose content of IIR starch was 19.84 ± 0.85%, and the size and shape of starch granules is ellipsoidal shape with sizes from 2 to 10 μm. IIR starch exhibited a C-type pattern and had 25.92% crystallinity (higher than that of corn starch). The gelatinization temperature of IIR starch was 58.68–75.41 °C, and its gelatinization enthalpy was Δ H gel = 4.33 J/g. After decocting, the IIR’s residues can be used to prepare anhydro-sugars in a polar aprotic solvent. The total carbon yield of levoglucosan (LG), levoglucosenone (LGO), 5-hydroxymethylfurfural (HMF), and furfural (FF) could reach 69.81% from IIR’s decoction residues in 1,4-dioxane with 15 mM H 2 SO 4 as the catalyst. Further, the residues after dehydration were prepared into biochar by thermochemical conversion and the BET surface area of biochar was 1749.46 m 2 /g which has good application prospect in soil improvement and alleviates obstacles of IIR continuous cropping.

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Production and properties assessment of biochars from rapeseed and poplar waste biomass for environmental applications in Romania

Cited by 5 publications

References 45 publications

Biochar Particles Obtained from Agricultural Carob Waste as a Suitable Filler for Sustainable Biocomposite Formulations

Biochar Particles Obtained from Agricultural Carob Waste as a Suitable Filler for Sustainable Biocomposite Formulations

New Frontiers for Raw Wooden Residues, Biochar Production as a Resource for Environmental Challenges

Characterization of isolated starch from Isatis indigotica Fort. root and anhydro-sugars preparation using its decoction residues

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