影响厌氧发酵生物产氢因素的试验研究  

A Study on Factors of Anaerobic Fermentative Bio-hydrogen Production

作　　者：左宜[1] 左剑恶[1] 张薇[1] 陈金春[2] 

机构地区：[1]清华大学环境科学与工程系,北京100084 [2]清华大学生物科学与技术系,北京100084

出　　处：《中国沼气》2003年第3期8-11,共4页China Biogas

基　　金：清华大学基础研究基金资助项目 ;项目编号 :JC2 0 0 1 0 0 9

摘　　要：本文采用经预热处理后的河底污泥,对其利用有机物厌氧生物产氢过程中的几种主要影响因素进行了试验研究。结果表明,在起始pH值为6 5,反应温度为35℃时,该污泥可利用木糖、葡萄糖、果糖、蔗糖、纤维二糖、淀粉等多种糖类物质为基质产生氢气,其中,以木糖为基质时,累计产氢量和产氢速率均较低;反应温度和起始pH值均对厌氧产氢过程具有显著影响,最佳温度为35℃最佳起始pH值为6 5。在上述条件下,以葡萄糖(COD=20 0g·L-1)为基质时,可获得最大的累计产氢量为323 75mlH2·gTVS-1,产氢速率为37 64mlH2·gTVS-1h-1,气体中氢气含量约为50%。Effects of some major factors of anaerobic fermentative biohydrogen production with organic substrates was evaluated using preheated river sediments as seed sludge The results showed that: at 35 ℃ and initial pH of 65, these sediments could use different sugars including xylose,glucose,fructose ,sucrose,cellobiose,starch as substrates to produce hydrogen.When xylose was used as substrate, the total hydrogen production and the specific hydrogen production rate were lower The temperature and the initial pH values had great effects on the anaerobic biohydrogen production process, the optimal temperature was 35 ℃, and the optimal initial pH value was 65 respectively At the optimal temperature and the optimal initial pH, using glucose as substrate (COD=20 000 mg·L-1), the highest total hydrogen production of 32375 ml·gTVS-1 was reached, the specific hydrogen production rate was 3764 ml·gVSS-1h-1, and the hydrogen composition in the gas was about 50%

关 键 词：厌氧发酵 生物产氢法 试验 厌氧产氢法 预热处理 河底污泥 影响因素 PH值 反应温度 

分 类 号：X703[环境科学与工程—环境工程] TQ920.62[轻工技术与工程—发酵工程]