摘要
通过富集获得产氢海洋光合菌群,该菌群可以有效利用发酵产氢的关键副产物乙酸作为产氢碳源。温度、光照强度、起始pH和乙酸浓度都对该菌群产氢和生长有明显影响。当在30℃、4000lx光照和起始pH=8.0的条件下培养时,此光合菌群产氢量和底物转化效率较高。乙酸浓度对产氢影响巨大,低浓度乙酸的底物转化效率较高,但总产氢量不高;高浓度乙酸的底物转化效率不高,但总产氢量较高。此实验结果为海洋光合细菌与海洋发酵细菌偶联产氢提供科学参考。
The marine photosynthetic bacteria consort was enriched. And the bacteria consort could utilize the main byproduct of fermentative hydrogen production-acetate as carbon source. The influence of temperature, light intensity, initial pH and acetate concentration on hydrogen production and bacteria growth was investigated in this test. The photosynthetic bacteria consort achieved high hydrogen yield and substrate conversion efficiency under 30℃, 4000lx and initial pH8.0. Acetate concentration influence hydrogen production greatly. During the concentration was low, then the substrate conversion efficiency was high, but total hydrogen yield was low; and at high acetate concentration, substrate conversion efficiency was low, but total hydrogen yield was high. This test can provide a consult for combining photosynthetic bacteria with dark fermentative bacteria for hydrogen producing.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2009年第12期1693-1698,共6页
Acta Energiae Solaris Sinica
基金
国家高新技术研究发展(863)计划(No.2006AA05Z112)
关键词
生物制氢
光合细菌菌群
海水
温度
光照强度
起始pH
乙酸
biological hydrogen production
phototrophic bacteria consort
seawater
temperature
light intensity
initial pH
acetate
