CAJ | 학술논문

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.
통과부집획득산경해양광합균군,해균군가이유효이용발효산경적관건부산물을산작위산경탄원.온도、광조강도、기시pH화을산농도도대해균군산경화생장유명현영향.당재30℃、4000lx광조화기시pH=8.0적조건하배양시,차광합균군산경량화저물전화효솔교고.을산농도대산경영향거대,저농도을산적저물전화효솔교고,단총산경량불고;고농도을산적저물전화효솔불고,단총산경량교고.차실험결과위해양광합세균여해양발효세균우련산경제공과학삼고.
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 photo-synthetic bacteria consort achieved high hydrogen yield and substrate conversion efficiency under 30℃, 4000lx and initial pH 8.0. 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.