1994 Volume 7 Issue 1 Pages 29-34
A performance characteristic of a small-sized microalgal CO2/O2 exchange system for the microgravity environment was investigated. The system consisted of a photosynthetic reactor with available capacity of 1.5 liter, a membrane module for gas recovery and a circulatory pump. Gas exchange experiment were carried out on Spirulina platensis with SOT medium. Oxygen generation rate per cell became maximum in the middle or latter of exponential growth phase. Oxygen generation rate per medium increase as cell concentration increased. The high irradiation intensity brought about the high cell growth rate and oxygen generation rate.
