School of Civil and Geosciences, Newcastle University, Upon Tyne NE1 7RU, United Kingdom; University of Port Harcourt, Choba, Rivers State, Nigeria.
School of Civil and Geosciences, Newcastle University, Upon Tyne NE1 7RU, United Kingdom.
Bioresour Technol. 2018 Sep;263:410-417. doi: 10.1016/j.biortech.2018.05.023. Epub 2018 May 8.
An assessment was carried out on the effect of temperature on the anaerobic digestion of Laminaria digitata biomass, in batch reactors (25, 35, 45 and 55 °C) with a hydraulic retention time of 40 days. The first order, modified Gompertz and logistics models were used to obtain the kinetic parameters of the biogas production process. Results indicate the chemical composition of the algae substrate could be written as CHONS, with a theoretical methane yield of 336 ± 0.86 L CH kg VS. Experimental methane yield obtained from the reactors for 25, 35, 45, and 55 °C were 318 ± 1.58, 293 ± 1.11, 271 ± 0.98 and 352 ± 0.63 mL CH/gVS respectively. Their R > 0.90 indicate both models fits well for predicating kinetics of methane production. The lowest k (0.31), high biodegradability index (0.96) and lag time (9.3-11.7 days) were obtained for 55 °C.
对温度对裙带菜生物质厌氧消化的影响进行了评估，在水力停留时间为 40 天的批量反应器（25、35、45 和 55°C）中进行。使用一阶、修正的 Gompertz 和物流模型获得沼气生成过程的动力学参数。结果表明，藻类基质的化学成分可以表示为 CHONS，理论甲烷产率为 336±0.86 L CH kg VS。在 25、35、45 和 55°C 的反应器中获得的实验甲烷产率分别为 293±1.11、271±0.98 和 352±0.63 mL CH/gVS。它们的 R>0.90 表明两种模型都很好地适用于预测甲烷产生的动力学。在 55°C 下获得了最低的 k（0.31）、高生物降解性指数（0.96）和滞后时间（9.3-11.7 天）。
