Four streams and their mixtures have been considered for anaerobic co-digestion, all of them generated during pig carcasses processing or in related industrial activities: meat flour (MF), process water (PW), pig manure (PM) and glycerin (GL). Biochemical methane potential assays were conducted at 37 °C to evaluate the effects of the substrate mix ratio on methane generation and process behavior.

The results show that the co-digestion of these products favors the anaerobic fermentation process when limiting the amount of meat flour in the mixture to co-digest, which should not exceed 10%. The ratio of other tested substrates is less critical, because different mixtures reach similar values of methane generation. The presence in the mixture of process water contributes to a quick start of the digester, something very interesting when operating an industrial reactor. The analysis of the fraction digested reveals that the four analyzed streams can be, a priori, suitable for agronomic valorization once digested.

已考虑将四股流及其混合物用于厌氧消化，它们全都在猪processing体加工或相关工业活动中产生：肉粉（MF），工艺用水（PW），猪粪（PM）和甘油（GL） 。在37°C下进行生化甲烷潜力测定，以评估底物混合比对甲烷生成和过程行为的影响。

结果表明，当将混合物中的肉粉量限制为共同消化时，这些产品的共同消化有利于厌氧发酵过程，其含量不应超过10％。其他测试底物的比例要求不那么严格，因为不同的混合物达到相似的甲烷生成值。工艺水混合物中的存在有助于蒸煮器的快速启动，这在操作工业反应器时非常有趣。消化部分的分析表明，被分析的四个流一旦被消化，就可以先验地适合于农艺增值。