Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, 6-6-06 Aoba, Aramaki-Aza, Aoba-Ku, Sendai, Miyagi 980-8579, Japan.
Bioresour Technol. 2018 Feb;249:826-834. doi: 10.1016/j.biortech.2017.10.084. Epub 2017 Oct 26.
The temperature-phased anaerobic digestion (TPAD) of food waste was studied for the purpose of comparing with single-stage mesophilic and thermophilic anaerobic digestion. The biogas and methane yields in the TPAD during the steady period were 0.759 ± 0.115 L/g added VS and 0.454 ± 0.201 L/g added VS, which were lower than those in the two single-stage anaerobic digestion. The improper sludge retention time may be the reason for the lower biogas and methane production in TPAD. The removal of volatile solids in the TPAD was 78.55 ± 4.59% and the lowest among the three anaerobic digestion processes. The reaction ratios of the four anaerobic digestion steps in the TPAD were all lower than those in the two single-stage anaerobic digestion. The energy conversion efficiency of the degraded substrate in the TPAD was similar with those in single-stage mesophilic and thermophilic anaerobic digestion systems.
研究了温度阶段性厌氧消化（TPAD）处理厨余垃圾，目的是与单相中温和高温厌氧消化进行比较。在稳定阶段，TPAD 中的沼气和甲烷产率分别为 0.759±0.115 L/g 添加 VS 和 0.454±0.201 L/g 添加 VS，低于两种单相厌氧消化。不当的污泥停留时间可能是 TPAD 中沼气和甲烷产量较低的原因。TPAD 中挥发性固体的去除率为 78.55±4.59%，在三种厌氧消化过程中最低。TPAD 中四个厌氧消化步骤的反应比例均低于两种单相厌氧消化。TPAD 中降解底物的能量转化率与单相中温和高温厌氧消化系统相似。
