The effect of organic loading on process performance and methane yields during anaerobic mono-digestion of sugarcane trash (ST) and sugarcane bagasse (SB) with and without dilute sulphuric acid impregnated steam explosion was investigated. At first, biochemical methane potential (BMP) of ST and SB was performed at 37 °C in batch assays with an inoculum to substrate (ISR) ratio of 2 on VS basis. Methane yields of 161.8 ± 4 and 187.9 ± 2.4 N mL g⁻¹ VS_added were obtained for ST and SB, respectively. These yields were 55.6 and 53.8 % of the theoretical methane potentials for ST and SB respectively. Later, semi-continuous reactor experiments were conducted using four stainless steel reactors with working volume of 10 L and hydraulic retention time (HRT) of 35 d at 37 °C. Reactors were fed with untreated ST, untreated SB, steam exploded trash (TT) and steam exploded bagasse (TB). In all four reactors, methane production increased with increase in organic loading rate (OLR) from 1.5 to 2.5 gVS L^-1 d^-1. However, higher methane yields were noticed in TT (226 ± 37 NmL g^-1VS_fed) and TB (236 ± 22 NmL g^-1VS_fed) than for ST (121 ± 24 mL g^-1VS_fed) and SB (148 ± 25 mL g^-1VS_fed). Increase in OLR from 2.5 to 3.5 gVS L^-1d^-1 resulted in decreased methane yields and pseudo state stable conditions. Thus, steam explosion with dilute H₂SO₄ catalyst can improve the methane yields of both ST and SB.

研究了在使用和不使用稀硫酸浸渍蒸汽爆炸的甘蔗渣 (ST) 和甘蔗渣 (SB) 厌氧单消化过程中有机负载对工艺性能和甲烷产量的影响。首先，ST 和 SB 的生化甲烷势 (BMP) 在 37°C 下以 VS 为基础的接种物与底物 (ISR) 比为 2 的批次测定中进行。的161.8±4和187.9±2.4毫升N克甲烷产量^-1 VS_添加分别为 ST 和 SB 获得。这些产率分别是 ST 和 SB 理论甲烷潜力的 55.6% 和 53.8%。随后，使用四个不锈钢反应器进行半连续反应器实验，工作容积为 10 L，水力停留时间 (HRT) 为 35 d，温度为 37 °C。向反应器中加入未经处理的 ST、未经处理的 SB、蒸汽爆破垃圾 (TT) 和蒸汽爆破甘蔗渣 (TB)。在所有四个反应器中，随着有机负载率 (OLR) 从 1.5 增加到 2.5 gVS L ^-1 d ^-1，甲烷产量增加。然而，在 TT（226 ± 37 NmL g ^-1 VS_进料）和 TB（236 ± 22 NmL g ^-1 VS_进料）中发现比 ST（121 ± 24 mL g ^-1 VS_进料）更高的甲烷产量^-1 VS_喂食）和 SB（148 ± 25 mL g ^-1 VS_喂食）。OLR 从 2.5 gVS L ^-1 d ^-1增加到 3.5 gVS L ^-1 d ^-1导致甲烷产量降低和假状态稳定条件。因此，使用稀H ₂ SO ₄催化剂进行蒸汽爆炸可以提高ST 和SB 的甲烷产率。