Functional Materials Laboratory (FML), School of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, China.
Functional Materials Laboratory (FML), School of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, China.
Bioresour Technol. 2021 May;327:124793. doi: 10.1016/j.biortech.2021.124793. Epub 2021 Feb 1.
The anaerobic-co-digestion (AcoD) of dairy-manure (DM) and aloe-peel-residue (ALR) waste is enhanced by combining static-magnetic-field (SMF) and fly-ash (FA). Varying SMF intensities (5-30 mT) were applied to the co-digestion digesters containing the optimum FA concentration (1.5 wt.%), which were selected from co-digestion systems with a varying FA (0-2 wt.%). All experimental groups exhibit the greater COD removal rates (51.56-64.19%) and cumulative biogas yields (604.14-671.64 mL/g VS) than reference group (37.77% and 433.19 mL/g VS). The digester with optimum FA concentration (1.5 wt.%) under 5 mT shows the highest biogas yield (671.64 mL/g VS), and exhibits superior digestate stability (45.4%) and fertility (7.01%) for fertilizer utilization. A powerful strategy for understanding the underlying mechanism of the SMF and FA accelerant in an enhanced AcoD system is proposed. This work documents an innovative technique for an enhanced AcoD system using the SMF coupled with FA accelerant.
厌氧共消化（AcoD）可增强乳制品粪便（DM）和芦荟皮渣（ALR）废物的处理效率，具体方法是将静态磁场（SMF）和粉煤灰（FA）结合使用。实验将不同强度的 SMF（5-30 mT）施加到共消化消化器中，其中包含经过优化的 FA 浓度（1.5wt.%），该浓度是从 FA 浓度变化的共消化系统中选择出来的（0-2wt.%）。所有实验组的 COD 去除率（51.56-64.19%）和累计沼气产量（604.14-671.64 mL/g VS）均高于对照组（37.77%和 433.19 mL/g VS）。在 5 mT 下具有最佳 FA 浓度（1.5wt.%）的消化器显示出最高的沼气产量（671.64 mL/g VS），并且具有优异的消化物稳定性（45.4%）和肥力（7.01%），可用于肥料利用。提出了一种用于理解增强型 AcoD 系统中 SMF 和 FA 促进剂潜在机制的强大策略。本工作记录了一种使用 SMF 与 FA 促进剂增强厌氧共消化系统的创新技术。
