Effect of oxygen supply at initial stage of anaerobic digestion on biogas production from corn straw

FU Shanfei; XU Xiaohui; SHI Xiaoshuang; ZHAO Yuzhong; WANG Chuanshui; GUO Rongbo

doi:10.11949/j.issn.0438-1157.20141447

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Effect of oxygen supply at initial stage of anaerobic digestion on biogas production from corn straw

更新时间：2025-12-10

- Effect of oxygen supply at initial stage of anaerobic digestion on biogas production from corn straw
- CIESC Journal Issue 3, Pages: 1111-1116(2015)
- 作者机构：
  
  1. 中国科学院青岛生物能源与过程研究所, 山东省沼气工业化生产与利用工程实验室,山东,青岛,266101
  2. 中国科学院大学,北京,100049
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20141447
  CLC： 705
- Online First：05 March 2015，
  
  Published：05 March 2015
- 稿件说明：
移动端阅览
FU Shanfei, XU Xiaohui, SHI Xiaoshuang, et al. Effect of oxygen supply at initial stage of anaerobic digestion on biogas production from corn straw[J]. CIESC Journal, 2015, (3): 1111-1116.
DOI：

FU Shanfei, XU Xiaohui, SHI Xiaoshuang, et al. Effect of oxygen supply at initial stage of anaerobic digestion on biogas production from corn straw[J]. CIESC Journal, 2015, (3): 1111-1116. DOI： 10.11949/j.issn.0438-1157.20141447.

摘要

基于厌氧发酵起始阶段的氧供应量控制

研究了厌氧发酵起始阶段通氧对玉米秸秆产甲烷特性的影响。当氧气供应量为10 ml·(g VS)-1时

甲烷产量达到最大为299.8 ml·(g VS)-1

相对于不做处理的样品甲烷产量提高了8.4%。但是

氧气供应量的继续提高并没有带来甲烷产量的升高

当氧气供应量大于40 ml·(g VS)-1时

甲烷产量相对于不做处理的秸秆样品轻微下降。modified first order equation 模型拟合分析表明起始阶段微好氧处理可以加快底物的水解速度

但氧气供应量过大会延长厌氧发酵的延滞时间。另外

经过起始阶段通氧处理

秸秆厌氧发酵的VS降解率也有所提高。

Abstract

In this study

the effect of oxygen supply at the initial stage of anaerobic digestion on biogas production from corn straw was investigated in batch-tests. Cumulative methane yields were between 256.6 and 299.8 ml·(g VS)-1. Maximum methane yield was obtained at oxygen load of 10 ml·(g VS)-1

which was 8.4% higher than that of the untreated sample. When oxygen loads exceeded 40 ml·(g VS)-1

slightly negative effect on methane yield was observed. The modified first order equation analysis indicated that oxygen supply treatment at the initial stage could accelerate hydrolysis of substrate. However

excessive oxygen supply during treatment might prolong the lag-phase time of anaerobic digestion. In addition

oxygen supply at the initial stage of anaerobic digestion could increase volatile solids degradation of corn straw.

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