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Sanitary effectiveness and biogas yield by anaerobic co-digestion of swine carcasses and manure.

Authors
  • Tápparo, Deisi Cristina1
  • Viancelli, Aline2
  • Amaral, André Cestonaro do1
  • Fongaro, Gislaine3, 4
  • Steinmetz, Ricardo Luis Radis5
  • Magri, Maria Elisa3
  • Barardi, Célia Regina Monte3
  • Kunz, Airton1, 5
  • 1 Western Paraná State University - UNIOESTE/CCET/PGEAGRI, Cascavel, Brazil. , (Brazil)
  • 2 Universidade do Contestado - UNC, Concórdia, Brazil. , (Brazil)
  • 3 Universidade Federal de Santa Catarina - PPGBB, Florianópolis, Brazil. , (Brazil)
  • 4 Universidade Federal da Fronteira Sul - PPGCTA, Erechim, Brazil. , (Brazil)
  • 5 Embrapa Suínos e Aves, Concórdia, Brazil. , (Brazil)
Type
Published Article
Journal
Environmental Technology
Publisher
Informa UK (Taylor & Francis)
Publication Date
Feb 01, 2020
Volume
41
Issue
6
Pages
682–690
Identifiers
DOI: 10.1080/09593330.2018.1508256
PMID: 30080477
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

The present study evaluated anaerobic co-digestion of swine manure and swine carcasses for biogas yield and inactivation/behaviour of pathogens purpose. Biochemical Methane Production tests were performed with samples containing ratios of 3, 7.5 and 15 kgcarcass m-3 manure. For pathogens inactivation experiments known amounts of model microrganisms (sensitive and resistant) were artificially inoculated in anaerobic reactors at 24°C and 37°C. The addition of carcass resulted in an increase until 119% of biogas yield compared to swine manure mono-digestion. Salmonella enterica, Escherichia coli and PCV2 were reduced >3log10 (24°C or 37°C) during 30 days. At 37°C, MS2 and PhiX-174 were reduced 3log10 and 1.8log10, respectively. At 24°C, MS2 reduced 1.5 log10 and PhiX-174 did not present any decay over 30 days. Considering the most resistant biomarkers pathogens, as bacteriophage, we recommend the swine carcasses pre-treatment, such as high temperatures, for sanitary security.

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