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Use of biochar as bulking agent for the composting of poultry manure: effect on organic matter degradation and humification.
Bioresour Technol. 2010 Feb; 101(4):1239-46.BT

Abstract

The aim of this study was to evaluate the use of biochar (produced by slow pyrolysis of Eucalyptus grandis biomass) as bulking agent for the composting of poultry manure. Three composting mixtures were prepared by the turned-pile system by mixing poultry manure with different organic wastes used as bulking agent (biochar, coffee husk and sawdust) in a proportion of 1:1 (fresh weight). Despite the inert nature of biochar, the composting mixture prepared with biochar underwent an organic matter degradation of 70% of the initial content. The organic matter of the poultry manure-biochar mixture was characterised by a high polymerisation degree of the humic-like substances, with a relative high proportion of humic acids in relation to fulvic acids. At the end of the composting process, the humic acid fraction represented more than 90% of the alkali extractable fraction, reflecting the intense humification of this material. Enrichment of poultry manure with biochar reduced the losses of nitrogen in the mature composts, although the use of sawdust would be more efficient in preserving the organic matter and nitrogen in the mature compost.

Authors+Show Affiliations

Department of Soil Science, Federal University of Lavras, Department of Soil Science, P.O. Box 3037, 37200-000 Lavras, Minas Gerais, Brazil.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19796932

Citation

Dias, Bruno O., et al. "Use of Biochar as Bulking Agent for the Composting of Poultry Manure: Effect On Organic Matter Degradation and Humification." Bioresource Technology, vol. 101, no. 4, 2010, pp. 1239-46.
Dias BO, Silva CA, Higashikawa FS, et al. Use of biochar as bulking agent for the composting of poultry manure: effect on organic matter degradation and humification. Bioresour Technol. 2010;101(4):1239-46.
Dias, B. O., Silva, C. A., Higashikawa, F. S., Roig, A., & Sánchez-Monedero, M. A. (2010). Use of biochar as bulking agent for the composting of poultry manure: effect on organic matter degradation and humification. Bioresource Technology, 101(4), 1239-46. https://doi.org/10.1016/j.biortech.2009.09.024
Dias BO, et al. Use of Biochar as Bulking Agent for the Composting of Poultry Manure: Effect On Organic Matter Degradation and Humification. Bioresour Technol. 2010;101(4):1239-46. PubMed PMID: 19796932.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Use of biochar as bulking agent for the composting of poultry manure: effect on organic matter degradation and humification. AU - Dias,Bruno O, AU - Silva,Carlos A, AU - Higashikawa,Fábio S, AU - Roig,Asunción, AU - Sánchez-Monedero,Miguel A, Y1 - 2009/09/30/ PY - 2009/07/01/received PY - 2009/09/03/revised PY - 2009/09/07/accepted PY - 2009/10/3/entrez PY - 2009/10/3/pubmed PY - 2010/1/28/medline SP - 1239 EP - 46 JF - Bioresource technology JO - Bioresour. Technol. VL - 101 IS - 4 N2 - The aim of this study was to evaluate the use of biochar (produced by slow pyrolysis of Eucalyptus grandis biomass) as bulking agent for the composting of poultry manure. Three composting mixtures were prepared by the turned-pile system by mixing poultry manure with different organic wastes used as bulking agent (biochar, coffee husk and sawdust) in a proportion of 1:1 (fresh weight). Despite the inert nature of biochar, the composting mixture prepared with biochar underwent an organic matter degradation of 70% of the initial content. The organic matter of the poultry manure-biochar mixture was characterised by a high polymerisation degree of the humic-like substances, with a relative high proportion of humic acids in relation to fulvic acids. At the end of the composting process, the humic acid fraction represented more than 90% of the alkali extractable fraction, reflecting the intense humification of this material. Enrichment of poultry manure with biochar reduced the losses of nitrogen in the mature composts, although the use of sawdust would be more efficient in preserving the organic matter and nitrogen in the mature compost. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/19796932/Use_of_biochar_as_bulking_agent_for_the_composting_of_poultry_manure:_effect_on_organic_matter_degradation_and_humification_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(09)01224-3 DB - PRIME DP - Unbound Medicine ER -