卡普洛酸的生产与基酸发酵过程中的生物质活动有关
Iglesias-Riobó J1, Mauricio-Iglesias M1, Carballa M1
1CRETUS, Department of Chemical Engineering, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
Bioresource technology
|December 6, 2024
概括
批量和连续炉反应堆 (CSTR) 和测序批量反应堆 (SBR) 进行了对比,以生产酸. 通过保持较低的生物质活动,SBR证明了更高的酸产量,优化了生产效率.
科学领域:
- 生物技术是生物技术.
- 生物化学工程 生物化学工程
- 厌氧消化 厌氧消化
背景情况:
- 有机载荷率 (OLR) 和液压保留时间 (HRT) 对酸生产的影响存在不一致的文献数据.
- 生物质活动是影响无氧消化过程中酸产量的关键因素.
研究的目的:
- 解决文献中关于OLR和HRT对酸生产的影响的差异.
- 为了评估连续动反应器 (CSTR) 与测序批量反应器 (SBR) 对于酸合成的性能.
- 确定最佳的操作参数,以最大限度地提高酸产量.
主要方法:
- 在不同的HRT和OLR条件下对CSTR和SBR配置进行比较研究.
- 用于化作为酸生产的基质.
- 监控的基质转化,产品产量和生物质活动 (g/g VSS·d)).
主要成果:
- 在1天的HRT和12gCOD/L·d的OLR下,由于生物质活性较低 (3.5gVSS·d与12gVSS·d相比),SBR与CSTR相比 (0.02 Cmol/Cmol-s) 实现了较高的酸产量 (0.11 Cmol/Cmol-s).
- 减少HRT (0.5天) 导致西洛斯转化不完全,乳酸和乙醇的形成,降低了酸的产量.
- 将基质度提高到24gCOD/L并没有显著改变SBR中的卡酸产量,与类似的生物质活性相关 (4.8g/gVSS·d)).
结论:
- 测序批量反应器 (SBR) 是酸生产的最佳配置.
- 在SBR中保持低生物质活动对于实现高酸产量至关重要.
- 像HRT和OLR这样的操作参数通过影响生物质活动,显著影响酸生产效率.
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