| 引用本文： |
-
蒋兴荣,王双飞,周敬红.CSTR反应器处理白酒酒糟的启动研究[J].广西科学,2013,20(4):335-340. [点击复制]
- JIANG Xing-rong,WANG Shuang-fei,ZHOU Jing-hong.Study of CSTR Reactor Starting on Distillers Grains Wastewater Treatment[J].Guangxi Sciences,2013,20(4):335-340. [点击复制]
|
|
| 摘要: |
| 在中温条件(35℃)下,利用CSTR厌氧反应器半分批式启动处理白酒酒糟,对启动过程的工艺参数(如pH值,VFA等)进行研究。结果,CSTR反应器采用初始物料低容积负荷1.0kgVS/(m3·d),并以负荷0.5kg VS/(m3·d)逐增的方式启动,当容积负荷在1.0~2.5kg VS/(m3·d)范围,厌氧系统单位容积日产气量基本保持在1.45L/(L·d)以上,甲烷含量稳定在60%左右,pH值稳定在6.9~7.3,VFA稳定在1000mg/L左右,COD去除率稳定在78.7%~93.7%。研究提高了糟渣的利用率及沼气产量,降低了反应器启动的成本,具有经济可行性。 |
| 关键词: 酒糟 半分批式 日产气量 |
| DOI： |
| 投稿时间：2013-07-10修订日期：2013-08-16 |
| 基金项目:广西科技攻关项目(桂科攻1211816-2B)资助。 |
|
| Study of CSTR Reactor Starting on Distillers Grains Wastewater Treatment |
|
JIANG Xing-rong1, WANG Shuang-fei2, ZHOU Jing-hong2
|
| (1.College of the Environment, Guangxi University, Nanning, Guangxi, 530004, China;2.School of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi, 530004, China) |
| Abstract: |
| In mesophilic temperature conditions (35℃), full-mix anaerobic digestion reactor CSTR(continuous stirred tank reactor) was used to treat distillers grains by semi-batch start, of which the parameters of start-up processing (such as pH, VFA, etc.) were studied. The results show that the CSTR reactor was started with low initial material volume load of 1.0kg VS/(m3·d) and gradually increased by the rate of 0.5kg VS/(m3·d). When the range of volume load was 1.0 to 2.5kg VS/(m3·d), the daily biogas yield per unit volume kept in more than 1.45L/(L·d), the content of methane stabilized at around 60%, pH value was stable at 6.9 to 7.3, VFA value stably kept in the vicinity of 1000mg/L and COD removal was stable at 78.7% to 93.7%.This study improved the utilization of distillers grains and biogas production, and reduced production costs of start-up processing, which might be feasible in economics. |
| Key words: distillers grains semi-batch start daily biogas yield |
