以红螺菌科光合细菌为实验菌种,以超微玉米秸秆为产氢底物,研究超微玉米秸秆的沉降稳定性及产氢能力,结果表明超微粉碎时间越长,颗粒度越小,超微玉米秸秆的比重和沉降速度越大,且超微粉碎技术可增大光合细菌和玉米秸秆的接触面积,提高光合细菌的产氢能力,但粉碎粒度太小,超微秸秆内部具有较强的凝聚作用,玉米秸秆的稳定性降低,超微玉米秸秆沉积于反应器底部,难以及时被分解利用,最佳粉碎时间60~80 min。 Taking Rhodospiridiae photosynthetic bacteria as the experimental strain and ultramicro-corn stalk as the substrate for hydrogen production, the sedimentation stability and hydrogen-producing ability of the super-corn stover were studied. The results showed that the longer the ultrafine grinding time, the smaller the particle size , The proportion of ultra-fine corn stalks and sedimentation rate is greater, and ultrafine grinding technology can increase the contact area of ​​photosynthetic bacteria and corn stalks and improve photosynthetic bacteria hydrogen production capacity, but the smashing particle size is too small, ultra-straw has more internal Strong cohesion, the stability of corn stalks decreased, ultra-corn stalks deposited on the bottom of the reactor, it is difficult to be decomposed in time, the best crushing time 60 ~ 80 min.