Impact Of Pyrolysis Temperature And Biomass Type On Physicochemical Properties Of Biochar On Soil Fertility
Volume 6 - Issue 2, February 2023 Edition
[Download Full Paper]
Author(s)
Innocent Igiraneza, Protogene Hakizimana, Immaculee Bayisenge
Keywords
Biomass type, Electrical Conductivity (EC), moisture content , Total Dissolved Solid (TDS) and hydrogen potential (pH).
Abstract
Biochar is pyrogenous, organic material synthesized through pyrolysis of different biomass (plant or animal). Main biochar applications include: pollution remediation due to high CEC and specific surface area, soil fertility improvement and carbon sequestration due to carbon and ash content etc. Pyrolysis temperature and biomass type used to prepare biochar affect the physicochemical characteristics of produced biochar, and when applied as soil amendment shows a range of results. In this study, Different biochars were prepared from different biomass types, namely Corn cobs (Zea mays), eucalyptus tree branches (Eucalyptus globulus), potato peels (Solanum tuberosum) at and sorghum tassels (Sorghum bicolor) at temperature range of 6000C-7000C. However, eight biochars were prepared where four biochars were prepared in open environment and other in furnace. The impact of temperature and biomass type on variability of physicochemical characteristics of obtained biochars were evaluated through measuring pH, electrical conductivity(EC), total dissolved solids and moisture content and Moreover, the physicochemical properties of biochar determine application of this biomaterial as an additive to improve soil fertility. The objective of study was to evaluate the impact of biomass type and pyrolysis temperature on physicochemical properties of biochar on soil fertility. The results of moisture content of different biomass types, namely Corn cobs (Zea mays), eucalyptus tree branches (Eucalyptus globulus), potato peels (solanum tuberosum) and sorghum tassels (Sorghum bicolor) are 59.97±0.03%,39.87±0.03%,79.65±0.04% and 23.75±0.03%respectively. The pH in furnace was :9.90, 10.03, 9.95, 10.03 respectively; EC :1850, 1248, 4660, 5400; TDS:989, 651, 2630, 3110 respectively and in open environment was :11.20, 11.06, 10.04, 11.92; 2640, 2630, 7590, 5720; 1401, 1407, 4260, 320 in pH, EC, TDS respectively.All results reported with negative values are not detected in samples (ND)
References
[1]. Glodowska, M., & Cultivation, P. (2017). Biochar characteristics and application in the agriculture. May.
[2]. Hunt, J., Duponte, M., Sato, D., & Kawabata, A. (2010). The Basics of Biochar?: A Natural Soil Amendment 1. 1–6.
[3]. Joseph, S. Taylor, P. C. A. (2019). Basic Principles of Biochar Production - Biochar for Sustainable Soils. In Biochar for Sustainable Soils. https://www.e education.psu.edu/egee439/node/537%0Ahttps://biochar.international/guides/basic-principles-of-biochar-production/%0Ahttps://biochar.international/guides/basic-principles-of-biochar-production/#introduction
[4]. Juriga, M., & Šimanský, V. (2019). Effects of Biochar and its Reapplication on Soil pH and Sorption Properties of Silt Loam Haplic Luvisol. Acta Horticulturae et Regiotecturae, 22(2), 65–70. https://doi.org/10.2478/ahr-2019-0012
[5]. Li, X., Shen, Q., Zhang, D., Mei, X., Ran, W., Xu, Y., & Yu, G. (2013). Functional Groups Determine Biochar Properties (pH and EC) as Studied by Two-Dimensional 13C NMR Correlation Spectroscopy. PLoS ONE, 8(6). https://doi.org/10.1371/journal.pone.0065949
[6]. Mohammed, E., Mohammed, T., & Mohammed, A. (2017). MethodsX Optimization of an acid digestion procedure for the determination of Hg , As , Sb , Pb and Cd in fi sh muscle tissue. MethodsX, 4, 513–523. https://doi.org/10.1016/j.mex.2017.11.006
[7]. Singh, B., Dolk, M. M., Shen, Q., & Camps-Arbestain, M. (2017). Biochar pH, electrical conductivity and liming potential. Biochar: A Guide to Analytical Methods, June 2018, 23–38. https://ebooks.publish.csiro.au/content/ISBN/9781486305100
[8]. Tomczyk, A. (2020). Biochar physicochemical properties?: pyrolysis temperature and feedstock kind effects. Reviews in Environmental Science and Bio/Technology, 3. https://doi.org/10.1007/s11157-020-09523-3
[9]. Wang, Yan; Liu, R. (2017). Comparison of characteristics of twenty-one types of biochar and their ability to remove multi-heavy metals and methylene blue in solution. 160.
[10]. Wang, S., Gao, B., Zimmerman, A. R., Li, Y., Ma, L., Harris, W. G., & Migliaccio, K. W. (2015). Physicochemical and sorptive properties of biochars derived from woody and herbaceous biomass. Chemosphere, 134, 257–262. https://doi.org/10.1016/J.CHEMOSPHERE.2015.04.062
[11]. Zhang, X., Wang, H., & He, L. (2013). Using biochar for remediation of soils contaminated with heavy metals and organic pollutants. 8472–8483. https://doi.org/10.1007/s11356-013-1659-0
[12]. Zhao, J. J., Shen, X. J., Domene, X., Alcañiz, J. M., Liao, X., & Palet, C. (2019). Comparison of biochars derived from different types of feedstock and their potential for heavy metal removal in multiple-metal solutions. Scientific Reports, 9(1), 1–12. https://doi.org/10.1038/s41598-019-46234-4
[13]. Zhao, R., Coles, N., Kong, Z., & Wu, J. (2015). Effects of aged and fresh biochars on soil acidity under different incubation conditions. Soil and Tillage Research, 146(PB), 13–138. https://doi.org/10.1016/j.still.2014.10.014
