In this study, a continuously anaerobic two-stage pilot plant was established for bioenergy production, comprising 5 major pieces of equipment: a mixing tank, 1st anaerobic digester (AD), 2nd AD, sediment tank, aeration tank, and final sediment tank, all operating at ambient conditions. The operation of the continuously anaerobic two-stage pilot plant was automatically controlled by a programmable logic controller (PLC) using a designed control logic concept to set the hydraulic retention time (HRT) and inlet substrate concentration. The organic loading rate, pretreatment of hydrolysis pressure, and microbial community analysis were investigated for their effects on biogas production performance using different substrates: soybean residue (SR) and food waste hydrolysate (FWH), respectively. It was found that the peaks of biogas production rate on daily volumetric feeding were 1.20 m³·m⁻³·d⁻, and the biogas yield on VS added was 760 dm³·kg⁻ from food waste hydrolysate with a pretreatment hydrolysis pressure of 10 kg cm⁻, at an OLR in COD concentration of 3.56 kg m⁻³·d⁻, and an HRT of 11 days, respectively. The genus was found to be abundant in the 1st AD, approximately 6.7 times more abundant than in the 2nd AD. The continuous anaerobic two-stage pilot plant was properly examined for its application in treating food waste and soybean residue with the goal of obtaining renewable bioenergy.

中文翻译：

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在连续厌氧两级中试装置中使用大豆渣和水热预处理的餐厨垃圾水解物生产沼气性能


在本研究中，建立了一个用于生物能源生产的连续厌氧两级中试装置，包括5个主要设备：混合池、第一厌氧消化池（AD）、第二厌氧消化池、沉淀池、曝气池和最终沉淀池，全部在环境条件下运行。连续厌氧两级中试装置的运行由可编程逻辑控制器（PLC）自动控制，使用设计的控制逻辑概念来设置水力停留时间（HRT）和入口底物浓度。分别使用不同底物：豆渣（SR）和食物垃圾水解产物（FWH），研究有机负荷率、水解压力预处理和微生物群落分析对沼气生产性能的影响。结果表明，预处理水解压力为10 kg的餐厨垃圾水解液，每日定量投料的沼气产量峰值为1.20 m3·m⁻3·d⁻，添加VS的沼气产量为760 dm3·kg⁻ cm-，COD 浓度的 OLR 为 3.56 kg m-3·d-，HRT 为 11 天。该属在公元 1 世纪被发现丰富，大约是公元 2 世纪的 6.7 倍。连续厌氧两阶段中试装置在处理食物垃圾和豆渣方面的应用得到了适当的检验，目的是获得可再生生物能源。