Recently, lipidic wastes have been reported to enhance biomethane production through anaerobic co-digestion (ACD). These lipidic wastes were of animal and plant origins. The comparison of animal and plant lipidic wastes with the microbial communities involved in lipid degradation have not been given adequate attention in pervious reviews. However, there is need to demonstrate the differences between these wastes in terms of their long-chain fatty acids (LCFAs) composition, nature, and availability. This review discusses the characterization and comparison of animal and plant lipidic wastes as co-substrates, while summarizing the potential of biomethane production in the laboratory, as well as pilot and full-scale operations. The degradation kinetics of LCFAs existing in animal and plant lipidic wastes were also highlighted during the operation process, along with the challenges (such as inhibition by LCFAs, sludge washout, sludge flotation, and foaming). Discussion on the use of the next gene sequencing (NGS) for the microbial community in the ACD of lipidic wastes was considered to understand the interspecies interactions among various microbes. The economic feasibility of lipidic wastes in the ACD along with biogas yield has also been evaluated. The use of lipids (animal and plant based) in anaerobic digestion with the application of combined pretreatment or an acclimatized microbial consortium could be a potential approach for maximum energy recovery from the waste in terms of biomethane production.

中文翻译：

---

厌氧消化中基于动物和植物的脂质废物的评估：长链脂肪酸降解的动力学。

近来，已报道脂质废物通过厌氧共消化（ACD）来增强生物甲烷的产生。这些脂质废物是动植物来源的。动植物脂质废物与涉及脂质降解的微生物群落的比较在以往的综述中并未得到足够的重视。但是，有必要证明这些废物之间在长链脂肪酸（LCFA）组成，性质和可利用性方面的差异。这篇综述讨论了作为共底物的动植物脂质废物的表征和比较，同时总结了实验室，试点和大规模操作中生物甲烷生产的潜力。在运行过程中，动物和植物类脂类废物中存在的LCFA的降解动力学也得到了强调，同时还面临挑战（例如，LCFA的抑制，污泥的冲刷，污泥的浮选和起泡）。为了了解各种微生物之间的种间相互作用，讨论了对脂类废物ACD中微生物群落使用下一基因测序（NGS）的讨论。还评估了ACD中含脂废物与沼气产量的经济可行性。通过联合预处理或驯化的微生物联合体在厌氧消化中使用脂质（基于动物和植物的脂质）可能是从生物甲烷生产方面最大程度地从废物中回收能量的潜在方法。污泥冲洗，污泥浮选和起泡）。为了了解各种微生物之间的种间相互作用，讨论了对脂类废物ACD中微生物群落使用下一基因测序（NGS）的讨论。还评估了ACD中含脂废物与沼气产量的经济可行性。通过联合预处理或驯化的微生物联合体在厌氧消化中使用脂质（基于动物和植物的脂质）可能是从生物甲烷生产方面最大程度地从废物中回收能量的潜在方法。污泥冲洗，污泥浮选和起泡）。为了了解各种微生物之间的种间相互作用，讨论了对脂类废物ACD中微生物群落使用下一基因测序（NGS）的讨论。还评估了ACD中含脂废物与沼气产量的经济可行性。通过联合预处理或驯化的微生物联合体在厌氧消化中使用脂质（基于动物和植物的脂质）可能是从生物甲烷生产方面最大程度地从废物中回收能量的潜在方法。还评估了ACD中含脂废物与沼气产量的经济可行性。通过联合预处理或驯化的微生物联合体在厌氧消化中使用脂质（基于动物和植物的脂质）可能是从生物甲烷生产方面最大程度地从废物中回收能量的潜在方法。还评估了ACD中含脂废物与沼气产量的经济可行性。通过联合预处理或驯化的微生物联合体在厌氧消化中使用脂质（基于动物和植物的脂质）可能是从生物甲烷生产方面最大程度地从废物中回收能量的潜在方法。