AS  Vol.8 No.9 , September 2017
Effect of Pyrolysis Temperature and Feedstock Type on Agricultural Properties and Stability of Biochars
Abstract: Pyrolysis temperature and feedstock type used to produce biochar influence the physicochemical properties of the obtained product, which in turn display a range of results when used as soil amendment. From soil carbon (C) sequestration strategy to nutrient source, biochar is used to enhance soil properties and to improve agricultural production. However, contrasting effects are observed from biochar application to soil results from a wide range of biochar’s properties in combination with specific environmental conditions. Therefore, elucidation on the effect of pyrolysis conditions and feedstock type on biochar properties may provide basic information to the understanding of soil and biochar interactions. In this study, biochar was produced from four different agricultural organic residues: Poultry litter, sugarcane straw, rice hull and sawdust pyrolysed at final temperatures of 350°C, 450°C, 550°C and 650°C. The effect of temperature and feedstock type on the variability of physicochemical properties of biochars was evaluated through measurements of pH, electrical conductivity, cation exchange capacity, macronutrient content, proximate and elemental analyses, Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analyses. Additionally, an incubation trial was carried under controlled conditions to determine the effect of biochar stability on CO2-eq emissions. Results showed that increasing pyrolysis temperature supported biochar stability regardless of feedstock, however, agricultural properties varied widely both as an effect of temperature and feedstock. Animal manure biochar showed higher potential as nutrient source rather than a C sequestration strategy. Improving the knowledge on the influence of pyrolysis temperature and feedstock type on the final properties of biochar will enable the use of better tailored materials that correspond to the expected results while considering its interactions with environmental conditions.
Cite this paper: Feola Conz, R. , Abbruzzini, T. , de Andrade, C. , P. Milori, D. and E. P. Cerri, C. (2017) Effect of Pyrolysis Temperature and Feedstock Type on Agricultural Properties and Stability of Biochars. Agricultural Sciences, 8, 914-933. doi: 10.4236/as.2017.89067.

[1]   Lehmann, J. and Joseph, S. (2009) Biochar for Environmental Management: An Introduction. In: Lehmann, J. and Joseph, S., Eds., Biochar for Environmental Management: Science and Technology, Routledge, Abingdon, 416.

[2]   Luo, L., Xu, C., Chen, Z. and Zhang, S. (2015) Properties of Biomass-Derived Biochars: Combined Effects of Operating Conditions and Biomass Types. Bioresource Technology, 192, 83-89.

[3]   Mukome, F.N.D., Zhang, X., Silva, L.C.R., Six, J. and Parikh, S.J. (2013) Use of Chemical and Physical Characteristics to Investigate Trends in Biochar Feedstocks. Journal of Agricultural and Food Chemistry, 61, 2196-2204.

[4]   Wang, J., Xiong, Z. and Kuzyakov, Y. (2016) Biochar Stability in Soil: Meta-Analysis of Decomposition and Priming Effects. GCB Bioenergy, 8, 512-523.

[5]   Wang, D., Fonte, S.J., Parikh, S.J., Six, J. and Scow, K.M. (2017) Biochar Additions Can Enhance Soil Structure and the Physical Stabilization of C in Aggregates. Geoderma, 303, 110-117.

[6]   Woolf, D., Amonette, J.E., Street-Perrott, F.A., Lehmann, J. and Joseph, S.D. (2010) Biochar as Carbon Negative in Carbon Credit under Changing Climate. Nature Communications, 1-56.

[7]   Singh, B.P., Hatton, B.J., Singh, B., Cowie, A.L. and Kathuria, A. (2010) Influence of Biochars on Nitrous Oxide Emission and Nitrogen Leaching from Two Contrasting Soils. Journal of Environmental Quality, 39, 1224-1235.

[8]   Van Zwieten, L., et al. (2014) An Incubation Study Investigating the Mechanisms that Impact N2O Flux from Soil Following Biochar Application. Agriculture, Ecosystems & Environment, 191, 53-62.

[9]   Enders, A., Hanley, K., Whitman, T., Joseph, S.D. and Lehmann, J. (2012) Characterization of Biochars to Evaluate Recalcitrance and Agronomic Performance. Bioresource Technology, 114, 644-653.

[10]   Cantrell, K.B., Hunt, P.G., Uchimiya, M., Novak, J.M. and Ro, K.S. (2012) Impact of Pyrolysis Temperature and Manure Source on Physicochemical Characteristics of Biochar. Bioresource Technology, 107, 419-428.

[11]   Azargohar, R., Nanda, S., Kozinski, J.A., Dalai, A.K. and Sutarto, R. (2014) Effects of Temperature on the Physicochemical Characteristics of Fast Pyrolysis Bio-Chars Derived from Canadian Waste Biomass. Fuel, 125, 90-100.

[12]   Ippolito, J.A., Spokas, K.A., Novak, J.M., Lentz, R.D. and Cantrell, K.B. (2015) Biochar Elemental Composition and Factors Influencing Nutrient Retention. In: Lehmann, J. and Joseph, S.D., Eds., Biochar for Environmental Management: Science, Technology and Implementation, Earthscan, 137-162.

[13]   Lorenz, K. and Lal, R. (2014) Biochar Application to Soil for Climate Change Mitigation by Soil Organic Carbon Sequestration. Journal of Plant Nutrition and Soil Science, 177, 651-670.

[14]   Joseph, S.D., et al. (2010) An Investigation into the Reactions of Biochar in Soil. Australian Journal of Soil Research, 48, 501-515.

[15]   IBI (2015) Standardized Product Definition and Product Testing Guidelines for Biochar that Is Used in Soil, International Biochar Initiative.

[16]   Rajkovich, S., et al. (2012) Corn Growth and Nitrogen Nutrition after Additions of Biochars with Varying Properties to a Temperate Soil. Biology and Fertility of Soils, 48, 271-284.

[17]   ASTM International ASTM D1762-84. (2007) Standard Test Method for Chemical Analysis of Wood Charcoal. ASTM International 1-2, West Conshohocken.

[18]   ASTM International. ASTMD 3172-13. (2013) Standard Practice for Proximate Analysis of Coal and Coke. ASTM International 1-2, West Conshohocken.

[19]   Kim, K.H., Kim, J.Y., Cho, T.S. and Choi, J.W. (2012) Influence of Pyrolysis Temperature on Physicochemical Properties of Biochar Obtained from the Fast Pyrolysis of Pitch Pine (Pinus rigida). Bioresource Technology, 118, 158-162.

[20]   Enders, A. and Lehmann, J. (2012) Comparison of Wet-Digestion and Dry-Ashing Methods for Total Elemental Analysis of Biochar. Communications in Soil Science and Plant Analysis, 43, 1042-1052.

[21]   Wu, W., et al. (2012) Chemical Characterization of Rice Straw-Derived Biochar for Soil Amendment. Biomass and Bioenergy, 47, 268-276.

[22]   Myhre, G., et al. (2013) Anthropogenic and Natural Radiative Forcing. In: Stocker, T.F., et al., Eds., Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge University Press, Cambridge.

[23]   Embrapa (1997) Manual de Metodos de Analise de Solo. 2nd Edition.

[24]   Singh, B., Singh, B.P. and Cowie, A.L. (2010) Characterisation and Evaluation of Biochars for Their Application as a Soil Amendment. Australian Journal of Soil Research, 48, 516-525.

[25]   Kloss, S., et al. (2012) Characterization of Slow Pyrolysis Biochars: Effects of Feedstocks and Pyrolysis Temperature on Biochar Properties. Journal of Environmental Quality, 41, 990-1000.

[26]   Oh, T.-K., Choi, B., Shinogi, Y. and Chikushi, J. (2012) Characterization of Biochar Derived from Three Types of Biomass. Journal of the Faculty of Agriculture, 57, 61-66.

[27]   Song, W. and Guo, M. (2012) Quality Variations of Poultry Litter Biochar Generated at Different Pyrolysis Temperatures. Journal of Analytical and Applied Pyrolysis, 94, 138-145.

[28]   Meng, J., et al. (2013) Physicochemical Properties of Biochar Produced from Aerobically Composted Swine Manure and Its Potential Use as an Environmental Amendment. Bioresource Technology, 142, 641-646.

[29]   Melo, L.C.A., Coscione, A.R., Abreu, C.A., Puga, A.P. and Camargo, O.A. (2013) Influence of Pyrolysis Temperature on Cadmium and Zinc Sorption Capacity of Sugar Cane Straw—Derived Biochar. BioResource, 8, 4992-5004.

[30]   Zhao, L., Cao, X., Masek, O. and Zimmerman, A.R. (2013) Heterogeneity of Biochar Properties as a Function of Feedstock Sources and Production Temperatures. Journal of Hazardous Materials, 256-257, 1-9.

[31]   Lehmann, J., et al. (2011) Biochar Effects on Soil Biota-A Review. Soil Biology and Biochemistry, 43, 1812-1836.

[32]   Wang, Y., Hu, Y., Zhao, X., Wang, S. and Xing, G. (2013) Comparisons of Biochar Properties from Wood Material and Crop Residues at Different Temperatures and Residence Times. Energy and Fuels, 27, 5890-5899.

[33]   Park, S., Birkhold, S., Kubena, L., Nisbet, D. and Ricke, S. (2004) Review on the Role of Dietary Zinc in Poultry Nutrition, Immunity, and Reproduction. Biological Trace Element Research, 101, 147-163.

[34]   Ghani, W.A.K., et al. (2013) Biochar Production from Waste Rubber-Wood-Sawdust and Its Potential Use in C Sequestration: Chemical and Physical Characterization. Industrial Crops and Products Journal, 44, 18-24.

[35]   Mukherjee, A., Zimmerman, A.R. and Harris, W. (2011) Surface Chemistry Variations among a Series of Laboratory-Produced Biochars. Geoderma, 163, 247-255.

[36]   Cimo, G., et al. (2014) Effect of Heating Time and Temperature on the Chemical Characteristics of Biochar from Poultry Manure. Journal of Agricultural and Food Chemistry, 62, 1912-1918.

[37]   Chan, K.Y. and Xu, Z. (2009) Biochar: Nutrient Properties and Their Enhancement. In: Lehmann, J. and Joseph, S.D., Eds., Biochar for Environmental Management. Science and Technology 2009, Earthscan, 416.

[38]   Mimmo, T., Panzacchi, P., Baratieri, M., Davies, C.A. and Tonon, G. (2014) Effect of Pyrolysis Temperature on Miscanthus (Miscanthus × Giganteus) Biochar Physical, Chemical and Functional Properties. Biomass and Bioenergy, 62, 149-157.

[39]   Nanda, S., Azargohar, R., Kozinski, J.A. and Dalai, A.K. (2014) Characteristic Studies on the Pyrolysis Products from Hydrolyzed Canadian Lignocellulosic Feedstocks. Bioenergy Research, 7, 174-191.

[40]   Lee, Y., et al. (2013) Comparison of Biochar Properties from Biomass Residues Produced by Slow Pyrolysis at 500°C. Bioresource Technology, 148, 196-201.

[41]   Mukherjee, A., Lal, R. and Zimmerman, A.R. (2014) Effects of Biochar and Other Amendments on the Physical Properties and Greenhouse Gas Emissions of an Artificially Degraded Soil. Science of the Total Environment, 487, 26-36.