Western Paraná State University - UNIOESTE/CCET/PGEAGRI, Cascavel, Brazil.
Universidade do Contestado - UNC, Concórdia, Brazil.
Environ Technol. 2020 Feb;41(6):682-690. doi: 10.1080/09593330.2018.1508256. Epub 2018 Aug 21.
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 kg m . 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. , and PCV2 were reduced >3log (24°C or 37°C) during 30 days. At 37°C, MS2 and PhiX-174 were reduced 3log and 1.8log respectively. At 24°C, MS2 reduced 1.5 log 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.
本研究评估了猪粪和猪尸体的厌氧共消化，以提高沼气产量和灭活/控制病原体。采用含有 3、7.5 和 15kg/m3 比例的样品进行生物化学甲烷生产试验。为了进行病原体灭活实验，在 24°C 和 37°C 的厌氧反应器中人工接种了已知数量的模式微生物（敏感和抗性）。与猪粪单消化相比，添加尸体可使沼气产量增加高达 119%。在 30 天内，（24°C 或 37°C）时，和 PCV2 的减少量超过 3log。在 37°C 时，MS2 和 PhiX-174 的减少量分别为 3log 和 1.8log。在 24°C 时，MS2 减少了 1.5log，而 PhiX-174 在 30 天内没有任何衰减。考虑到最具抗性的生物标志物病原体，如噬菌体，我们建议对猪尸体进行预处理，如高温处理，以确保卫生安全。
