In this study, different micro-aeration (MA) strategies for anaerobic digestion (AD) of poultry litter (PL) and wheat straw (WS) were examined. MA at different stages (pretreatment, middle, pretreatment plus middle, and daily) in batch AD of WS showed that daily MA had the highest increase (16.5%) of the cumulative methane yield (CMY) compared to the control. Batch co-digestion (Co-AD) of WS and PL with daily MA obtained a furtherly improved (15.1%) CMY of 225.44 N mL CH₄/g VS _added. The modified Gompertz model and Cone model were good in fitting the methane yield kinetics of MA engaged AD process (R² > 0.99). Daily MA shortened the lag phase of Co-AD by 3.4%. The sequencing batch reactor for the Co-AD of WS and PL showed an increased (21.5%) daily methane yield when 0.5-h/d MA was employed. The results provided support for the application of micro-aeration in the AD of agricultural wastes.

在这项研究中，研究了用于家禽垫料 (PL) 和小麦秸秆 (WS) 厌氧消化 (AD) 的不同微曝气 (MA) 策略。WS 批次 AD 中不同阶段（预处理、中间、预处理加中间和每日）的 MA 显示，与对照相比，每日 MA 的累积甲烷产量（CMY）增幅最高（16.5%）。WS 和 PL 与每日 MA 的分批共消化 (Co-AD) 获得了进一步改善 (15.1%) 的 CMY，为 225.44 N mL CH ₄ /g VS_添加。改进的 Gompertz 模型和 Cone 模型很好地拟合了 MA 参与 AD 过程的甲烷产量动力学 (R ²> 0.99）。Daily MA 将 Co-AD 的滞后阶段缩短了 3.4%。当使用 0.5-h/d MA 时，WS 和 PL 的 Co-AD 的序批式反应器显示每日甲烷产量增加 (21.5%)。研究结果为微曝气在农业废弃物厌氧消化中的应用提供了支持。