引言 近些年来,随着化石燃料的巨大消耗,人类不得不面对能源枯竭及环境污染这两大难题^[1]。氢气由于燃烧热值高,不产生二氧化碳气体,清洁无污染,而且可以利用燃料电池技术有效地生产电能,所以氢能被认为是将来替代化石燃料能源的理想能源^[2-4]。与传统的通过化学方法转化化石燃料以及电解水方法制取氢气相比,
The biodegradation performance of a novel photosynthetic bacterial biofilm reactor for hydrogen production using glucose as the sole carbon source during the start-up stage and steady operation stage was investigated experimentally. The effects of operation parameters, such as light intensity, light wave length, inlet substrate concentration, temperature and pH of the substrate medium on the biodegradation efficiency of the photosynthesis hydrogen production biofilm reactor were studied respectively. The experimental results showed that the glucose elimination capacity of the bioreactor increased rapidly in the biofilm formation stage, then fluctuated in the growth stage, and finally kept almost constant in the stabilization stage. The biodegradation efficiency of the photosynthesis hydrogen production biofilm reactor increased with the increase in light intensity, inlet substrate concentration, temperature and pH till the biodegradation efficiency reached a maximum value. Then the biodegradation efficiency decreased with the increase in these parameters. In addition, light wave length had significant influence on the biodegradation efficiency.