Laboratorio de Biotecnología Ambiental, Departamento de Ingeniería Química, Universidad de Santiago de Chile, Ave. Lib. B ÓHiggins 3363, Región Metropolitana, Santiago, Chile.
Laboratorio de Biotecnología Ambiental, Departamento de Ingeniería Química, Universidad de Santiago de Chile, Ave. Lib. B ÓHiggins 3363, Región Metropolitana, Santiago, Chile.
Bioresour Technol. 2020 Dec;317:123989. doi: 10.1016/j.biortech.2020.123989. Epub 2020 Aug 9.
The effect of the substrate to inoculum ratio (SIR) on the anaerobic digestion (AD) of the liquid fractions (LFs) of co-hydrothermally treated mixed biomass (sewage sludge (SS) and the organic fraction of municipal solid waste (MSW)) was evaluated. The impact of SS + MSW-hydrochar was also studied at different hydrochar concentrations (0, 1, 5, 10, 15, 20 and 25 g/L), in two of the LFs studied. The SIR had a significant impact on methane yield (YCH) and organic matter degradation, with low methane production (4-44 NmLCH/g tCOD) observed for all LFs at SIR = 1:3. Hydrochar significantly improved YCH and specific methane production rate. Compared with the AD without hydrochar, the YCH improved up to 1.95 times at 15 g/L. Hydrochar doses from 1 to 10 g/L shortened the lag phase, while higher concentrations (15 to 25 g/L) showed an increment with respect to the control reactor without hydrochar.
研究了底物接种比（SIR）对共水热预处理混合生物质（污水污泥（SS）和城市固体废物（MSW）的有机部分）的液体部分（LFs）的厌氧消化（AD）的影响。还研究了在两种 LF 中不同水热炭浓度（0、1、5、10、15、20 和 25 g/L）下 SS+MSW 水热炭的影响。SIR 对甲烷产量（YCH）和有机物降解有显著影响，所有 LF 的 SIR 为 1:3 时，甲烷生成量均较低（4-44 NmLCH/g tCOD）。水热炭显著提高了 YCH 和比甲烷产率。与没有水热炭的 AD 相比，在 15 g/L 时 YCH 提高了 1.95 倍。水热炭剂量为 1 至 10 g/L 缩短了迟滞期，而较高浓度（15 至 25 g/L）与没有水热炭的对照反应器相比有所增加。
