The Effect of Pyrolysis Temperature and the Source Biomass on the Properties of Biochar Produced for the Agronomical Applications as the Soil Conditioner

Kalina, Michal; Sovová, Šárka; Švec, Jiří; Trudičová, Monika; Hajzler, Jan; Kubíková, Leona; Enev, Vojtěch

doi:10.3390/ma15248855

Cited by 19 publications

(20 citation statements)

References 32 publications

(78 reference statements)

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“…The ATR-FTIR spectra of particleboards made from rye straw contained several well-defined peaks that are characteristic of lignocellulosic materials. The presented spectra were interpreted based on the available literature data [ 49 , 50 , 51 , 52 , 53 ].…”

Section: Resultsmentioning

confidence: 99%

Annual Plants and Thermoplastics in the Production of Polymer and Lignocellulose Boards

et al. 2023

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This study investigated the mechanical, physical, and thermal properties of three-layer particleboards produced from annual plant straws and three polymers: polypropylene (PP), high-density polyethylene (HDPE), and polylactic acid (PLA). The rape straw (Brassica napus L. var. Napus) was used as an internal layer, while rye (Secale L.) or triticale (Triticosecale Witt.) was applied as an external layer in the obtained particleboards. The boards were tested for their density, thickness swelling, static bending strength, modulus of elasticity, and thermal degradation characteristics. Moreover, the changes in the structure of composites were determined by infrared spectroscopy. Among the straw-based boards with the addition of tested polymers, satisfactory properties were obtained mainly using HDPE. In turn, the straw-based composites with PP were characterized by moderate properties, while PLA-containing boards did not show clearly favorable properties either in terms of the mechanical or physical features. The properties of straw–polymer boards produced based on triticale straw were slightly better than those of the rye-based boards, probably due to the geometry of the strands, which was more favorable for triticale straw. The obtained results indicated that annual plant fibers, mainly triticale, can be used as wood substitutes for the production of biocomposites. Moreover, the addition of polymers allows for the use of the obtained boards in conditions of increased humidity.

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Section: Resultsmentioning

confidence: 99%

Annual Plants and Thermoplastics in the Production of Polymer and Lignocellulose Boards

et al. 2023

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“…At the same time, acidic surface functional groups decreased during carbonization [26,27,31]. Both mechanisms coincide, increasing biochar alkalinity as the pyrolysis temperature increases [42,54,63]. Furthermore, the pH of wooden biochar correlated with the pH of the feedstock, which could be used to predict the pH of biochar.…”

Section: The Vm MC Ash Fc and Ph Of Dbc Biochar Obtained From Various...mentioning

confidence: 92%

“…The effect of different pyrolysis temperatures on biochar properties has been widely studied for various feedstocks, including agricultural residues [50,51], wood chips and branches [52,53], and mixed wood wastes [54]. At a high temperature (500 °C), the carbon content in Neem wood biochar was 75.80% [55], that in pineapple leaf biochar was 60.79% [56], that in rice straw biochar was 61.98% [57], and that in corn stover biochar was 64.50% [51].…”

Section: Introductionmentioning

confidence: 99%

Influence of Pyrolysis Temperature and Time on Biochar Properties and Its Potential for Climate Change Mitigation

Wijitkosum

2023

J. Hum. Earth Future

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The thermochemical conversion of disposable bamboo chopstick (DBC) wastes into biochar is a practical strategy for converting waste into resources. This study aimed to investigate the effects of pyrolysis temperature and holding time on the physicochemical properties of DBC biochar and its potential for climate change mitigation. Properties affecting the biochar efficiency and potential for application were analyzed: moisture content (MC), volatile matter (VM), fixed carbon (FC), ash, pH, and carbon (C), hydrogen (H), nitrogen (N), and oxygen (O) content. Six different pyrolysis conditions were studied, with temperatures of 400 °C, 450 °C, and 500 °C and holding times of 20 and 60 min, at a constant heating rate. The results demonstrated that temperature and holding time significantly affected the physicochemical properties and performance of the biochar. Increases in %C, %FC, %N, and pH and reductions in %MC, %VM, %H, and %O were found when the temperature was increased at different holding times. The aromaticity increased and the polarity decreased significantly with increasing temperature and holding time. The results showed that temperature interacts significantly with holding time, and these two factors jointly affect the contents of MC, ash, FC, C, H, N, and O (R2 of 0.997) and pH (R2of 0.999). The DBC biochar obtained via pyrolysis at 450 °C and 500 °C for 20 and 60 min could be applied for climate change mitigation. The best DBC biochar was obtained at a pyrolysis temperature of 500 °C and a holding time of 20 min. This biochar showed good hydrophobicity, tremendous stability, the highest C (88.06%) and FC (76.49%) values, and the lowest ash (2.62%) and VM (19.23%) contents. Doi: 10.28991/HEF-2023-04-04-07 Full Text: PDF

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“…Biochar has shown potential for long-term sequestration of carbon [58]. Studies have shown that biochar's pyrolysis temperature significantly influences carbon sequestration, where higher pyrolysis temperatures produce biochar with a greater capacity for sequestering carbon than biochar produced with lower pyrolysis temperatures [57,[59][60][61]. Amending one hectare with biochar sequesters approximately 13 tons of CO 2 eq in the soil [62].…”

Section: Soil Total Organic Carbon (Toc)mentioning

confidence: 99%

“…Biochar captures and stores carbon in recalcitrant form, thereby reducing carbon emissions into the atmosphere [63]. Biochar use in agriculture is a feasible option for enhancing carbon sequestration and improving soil quality [59,64]. The recalcitrant nature of biochar is important for its application in carbon capture and sequestration, as highlighted by Zhang et al [59].…”

Section: Soil Total Organic Carbon (Toc)mentioning

confidence: 99%

Revitalizing the Biochemical Soil Properties of Degraded Coastal Soil Using Prosopis juliflora Biochar

Alkharabsheh,

Mwadalu,

Mochoge

et al. 2023

Life

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Biochar is an effective soil amendment with capabilities of boosting carbon sequestration and enhancing soil fertility, thus enhancing plant growth and productivity. While numerous studies have documented the positive effects of biochar on improving soil properties, a number of studies have reported conflicting results. Therefore, the current study was conducted to evaluate the impact of Prosopis juliflora biochar (0, 2.5, 5.0, and 7.5 t ha−1) on soil biochemical properties in Coastal Kenya to ascertain biochar’s potential for soil fertility improvement. A randomized complete block design was used for setting up the experiment with three replicates, while Casuarina equisetifolia L. was planted as the test crop. Soil sampling for nutrient analysis was conducted quarterly for 12 months to assess nutrient dynamics under different biochar rates in the current study. Compared to soil untreated with Prosopis juliflora biochar, the results showed that there was a significant increase in soil pH by 21% following biochar utilization at the rate of 7.5 t ha−1. Total nitrogen was increased by 32% after the biochar application, whereas the total organic carbon was increased by four folds in comparison to biochar-untreated soil. Available phosphorus was increased by 264% following biochar application in comparison to the control treatment. In addition, the application of biochar resulted in an increment in the soil exchangeable cations (Ca2+, K+, Mg2+) across the assessment periods. Soil cation exchange capacity (CEC), bacteria and fungi were enhanced by 95, 33 and 48%, respectively, following biochar application at 7.5 t ha−1 in comparison to untreated soil. In conclusion, these results strongly suggest improvement of soil biochemical properties following Prosopis juliflora biochar application, thus providing potential for soil fertility improvement in regions such as the one in the study.

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The Effect of Pyrolysis Temperature and the Source Biomass on the Properties of Biochar Produced for the Agronomical Applications as the Soil Conditioner

Cited by 19 publications

References 32 publications

Annual Plants and Thermoplastics in the Production of Polymer and Lignocellulose Boards

Annual Plants and Thermoplastics in the Production of Polymer and Lignocellulose Boards

Influence of Pyrolysis Temperature and Time on Biochar Properties and Its Potential for Climate Change Mitigation

Revitalizing the Biochemical Soil Properties of Degraded Coastal Soil Using Prosopis juliflora Biochar

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