Universidade do Vale do Rio dos Sinos, Civil Engineering Post-Graduation Program, Av. Unisinos, 950, Bairro Cristo Rei, 93022-000 São Leopoldo, Rio Grande do Sul, Brazil; University of the Sinos Valley, Post-Graduation Program in Civil Engineering, Environmental Sanitation Laboratory, Av. Unisinos, 950, 93022-750 São Leopoldo, RS, Brazil.
Bioresour Technol. 2017 Mar;228:362-367. doi: 10.1016/j.biortech.2017.01.003. Epub 2017 Jan 10.
The anaerobic co-digestion of organic fraction of municipal solid waste (OFMSW) and fruit and vegetable waste (FVW) was evaluated in terms of biogas and methane yield, volatile solids (VS) removal rate and stability of the process. The batch experiment was conducted in mesophilic conditions (35°C), with four different OFMSW/FVW ratios (VS basis) of 1/0, 1/1, 1/3, and 0/1. The methane yield from the co-digestion was higher than the mono-digestion for OFMSW and FVW. The optimal mixing ratio of OFMSW/FVW was found to be 1/3. The average cumulative biogas and methane yield in this condition was 493.8NmL/gVS and 396.6NmL/gVS, respectively, and the VS removal rate was 54.6%. Compared with the mono-digestion of OFMSW and FVW, the average increase in methane yield was 141% and 43.8%, respectively.
采用批式实验，在中温条件（35°C）下，以有机垃圾（OFMSW）和果蔬垃圾（FVW）的挥发性固体（VS）为基准，分别设定 4 种不同的 OFMSW/FVW 比例（1/0、1/1、1/3 和 0/1），研究了两者的协同厌氧消化性能，主要包括沼气和甲烷产量、VS 去除率以及过程稳定性。与 OFMSW 和 FVW 的单种消化相比，协同消化的甲烷产量更高。结果表明，OFMSW/FVW 的最佳混合比例为 1/3。在此条件下，累计沼气和甲烷产量分别为 493.8NmL/gVS 和 396.6NmL/gVS，VS 去除率为 54.6%。与 OFMSW 和 FVW 的单种消化相比，甲烷产量平均分别提高了 141%和 43.8%。
