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Article
Response from anaerobic digestion of laying hen manure with biochar addition
Engenharia Agrícola
  • Willian R. Andrade, Universidade de São Paulo
  • Cecilia de F. S. Ferreira, Universidade Federal de Viçosa
  • Richard S. Gates, Iowa State University
  • Alisson C. Borges, Universidade Federal de Viçosa
  • Tânia M. B. dos Santos, Universidade Estadual de Mato Grosso do Sul
Document Type
Article
Publication Version
Published Version
Publication Date
1-1-2020
DOI
10.1590/1809-4430-eng.agric.v40n3p315-321/2020
Abstract

This study aimed to assess the anaerobic digestion response of laying hen manure with different inclusion levels of biochar in batch reactors as measured by physicochemical parameters, biogas production and digestate quality. Four levels of biochar inclusions (0, 2.5, 5.0 and 7.5%) were tested with 3 replicates each. Twelve two-liter anaerobic batch reactors were used for 86 days at 35°C. Substrate and digestate of each treatment were assessed for monitored parameters, biogas production and digestate quality. Increased levels (0, 2.5, 5.0 and 7.5%) of biochar were found to gradually reduce total ammonia nitrogen (1794.33, 140.84, 950.81 and 509.32 mg.L-1, respectively). Despite the positive effect of biochar to accelerate initial biogas production, its use at any inclusion rate did not contribute significantly to biogas production in terms of biogas yield or digestate quality as compared to control treatment.

Comments

This article is published as Andrade, Willian R., Cecilia de FS Ferreira, Richard S. Gates, Alisson C. Borges, and Tânia Santos. "Response from anaerobic digestion of laying hen manure with biochar addition." Engenharia Agrícola 40, no. 3 (2020): 315-321. doi: 10.1590/1809-4430-eng.agric.v40n3p315-321/2020.

Creative Commons License
Creative Commons Attribution 4.0 International
Copyright Owner
Associação Brasileira de Engenharia Agrícola
Language
en
File Format
application/pdf
Citation Information
Willian R. Andrade, Cecilia de F. S. Ferreira, Richard S. Gates, Alisson C. Borges, et al.. "Response from anaerobic digestion of laying hen manure with biochar addition" Engenharia Agrícola Vol. 40 Iss. 3 (2020) p. 315 - 321
Available at: http://works.bepress.com/richard-gates/76/