Univ Lyon, INSA Lyon, DEEP, EA7429, 69621 Villeurbanne, France.
Arkolia Energies, 16 Rue des vergers, F34130 Mudaison, France.
Waste Manag. 2021 May 1;126:21-29. doi: 10.1016/j.wasman.2021.02.049. Epub 2021 Mar 16.
Hydrolysis is the most critical stage in high solids Temperature Phased Anaerobic Digestion (TPAD). In this paper two different Organic Fraction of Municipal Solid Waste (OFMSW) types were tested in co-digestion with Digested Sludge (DS) at different temperatures: 37, 55 and 65 °C. Volatile fatty acids (VFAs), soluble chemical oxygen demand (CODs) and Biochemical Methane Production (BMP) were measured and calculated after 0, 24, 48 and 72 h hydrolysis. The results showed that both the BMP and the methane production rate improved. A Solids Retention Time (SRT) of 72 h at a temperature of 55 °C gave the best results: the reaction rate constant k was 0.34 d and the BMP was 250 mL/g, which were 47% and 19% higher compared to the reference (0 h hydrolysis). The CODs and VFAs profiles during hydrolysis showed how OFMSW initial characteristics can affect the performance of temperature phased anaerobic digestion.
水解是高固体温度分相厌氧消化（TPAD）中最关键的阶段。本文研究了两种不同类型的城市固体废物有机部分（OFMSW）与消化污泥（DS）在不同温度下的共消化：37、55 和 65°C。在水解 0、24、48 和 72 h 后，测量并计算了挥发性脂肪酸（VFAs）、可溶性化学需氧量（CODs）和生物甲烷产量（BMP）。结果表明，BMP 和甲烷产率均提高。在 55°C 下，SRT 为 72 h 时效果最佳：反应速率常数 k 为 0.34 d，BMP 为 250 mL/g，与参考值（水解 0 h）相比，分别提高了 47%和 19%。水解过程中 CODs 和 VFAs 谱图表明 OFMSW 初始特性如何影响温度分相厌氧消化的性能。
