TotalEnergies, CSTJF, Centre Scientifique et Technique Jean Féger, Av. Larribau, 64000 Pau, France.
INRAE Transfert, 60 Rue Nicolas Leblanc, 11100 Narbonne, France.
Biotechnol Adv. 2023 Jul-Aug;65:108129. doi: 10.1016/j.biotechadv.2023.108129. Epub 2023 Mar 16.
Nowadays, anaerobic digestion (AD) is being increasingly encouraged to increase the production of biogas and thus of biomethane. Due to the high diversity among feedstocks used, the variability of operating parameters and the size of collective biogas plants, different incidents and limitations may occur (e.g., inhibitions, foaming, complex rheology). To improve performance and overcome these limitations, several additives can be used. This literature review aims to summarize the effects of the addition of various additives in co-digestion continuous or semi-continuous reactors to fit as much as possible with collective biogas plant challenges. The addition of (i) microbial strains or consortia, (ii) enzymes and (iii) inorganic additives (trace elements, carbon-based materials) in digester is analyzed and discussed. Several challenges associated with the use of additives for AD process at collective biogas plant scale requiring further research work are highlighted: elucidation of mechanisms, dosage and combination of additives, environmental assessment, economic feasibility, etc.
如今，越来越鼓励采用厌氧消化（AD）来增加沼气产量，从而增加生物甲烷产量。由于所用原料的多样性、操作参数的可变性以及沼气厂的规模，可能会发生不同的情况和限制（例如，抑制、泡沫、复杂的流变学）。为了提高性能并克服这些限制，可以使用几种添加剂。本文综述的目的是总结在共消化连续或半连续反应器中添加各种添加剂的效果，以尽可能符合集体沼气厂的挑战。分析和讨论了在消化器中添加（i）微生物菌株或群落、（ii）酶和（iii）无机添加剂（微量元素、碳基材料）的效果。强调了在集体沼气厂规模的 AD 工艺中使用添加剂所面临的几个挑战，这些挑战需要进一步的研究工作：阐明机制、添加剂的剂量和组合、环境评估、经济可行性等。
