| 稀盐酸预处理对稻草厌氧消化的影响 |
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| 引用本文： | 徐龙君,安丽娜,农丽薇,陈魏,李礼.稀盐酸预处理对稻草厌氧消化的影响[J].环境工程学报,2011,5(3):671-674. |
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| 作者姓名： | 徐龙君 安丽娜 农丽薇 陈魏 李礼 |
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| 作者单位： | 1. 重庆大学西南资源开发及环境灾害控制工程教育部重点实验室,重庆,400044
2. 重庆大学西南资源开发及环境灾害控制工程教育部重点实验室,重庆,400044;重庆市环境监测中心,重庆,401147 |
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| 基金项目： | 重庆市院士基金资助项目（2004-8260） |
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| 摘 要： | 为探明稀酸预处理对稻草厌氧消化的影响,采用不同浓度的稀盐酸溶液对稻草进行了浸泡预处理,并在完全混合厌氧消化条件下,研究了稻草厌氧发酵过程中的产气量、甲烷含量,发酵液中COD、pH值及挥发性脂肪酸(VFA)的变化情况.结果表明,增大稀盐酸溶液浓度会提高稻草厌氧消化反应的效果.分别经4%、8%和12%的稀盐酸溶液浸泡预处理...
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| 关 键 词： | 稀盐酸 预处理 稻草 厌氧消化 |
Effect of pretreatment of dilute hydrochloric acid on anaerobic digestion of rice straw |
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| Xu Longjun,An Lin,Nong Liwei,Chen Wei and Li Li.Effect of pretreatment of dilute hydrochloric acid on anaerobic digestion of rice straw[J].Techniques and Equipment for Environmental Pollution Control,2011,5(3):671-674. |
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| Authors: | Xu Longjun An Lin Nong Liwei Chen Wei and Li Li |
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| Abstract: | In order to investigate the effect of pretreatment of dilute acid on anaerobic digestion of rice straw the rice straw was anticipated with the different concentration hydrochloric acid solutions. The variations of biogas production, methane content, COD, pH and volatile fatty acid (VFA) were studied under the complete mixture anaerobic condition. The results showed that the concentration increase of the diluted hydrochloric acid solution can improve the effectiveness of anaerobic digestion for straw. After pretreatment with 4%, 8% and 12% of hydrochloric acid solution, the total gas production increased by 80.8%, 110.8% and 241.3%,respectively. Methane contents in gas increased by 8.2%, 9.2% and 11.7%,respectively. Removal rate of volatile solid (VS) increased by 6.9%, 12% and 13.7%,respectively and that of COD in digestion solution increased by 23.9%, 39% and 44%, respectively. |
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| Keywords: | dilute hydrochloric acid pretreatment rice straw anaerobic digestion |
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