CARBON DIOXIDE RECYCLE SYSTEM IN CLOSED SYSTEM UNDER MINUTE GRAVITY

摘要

PROBLEM TO BE SOLVED: To construct a carbon dioxide recycle system for permanently converting carbon dioxide to oxygen in closed system under minute gravity. ;SOLUTION: This carbon dioxide recycle system comprises an alga-culturing tank equipped with a light irradiating device and a water current generator and a mammal rearing chamber and the alga-culturing tank is connected to the mammal rearing chamber by a gas circulating line and the gas circulating line contains a gas exchange device containing a gas-liquid separation film through which passes gas, but does not pass water and an air blasting pump for circulating gas in the line, and the gas exchange device carries out gas exchange between carbon dioxide in the mammal rearing chamber and dissolved oxygen which alga generates by dissolving carbon dioxide in gas circulating line into an alga-culturing solution and taking dissolved oxygen in alga-culturing solution into a gas circulating line and further, the gas exchange device is controlled so that oxygen amount fed to the mammal rearing chamber and carbon dioxide amount fed to the alga-culturing tank are balanced.;COPYRIGHT: (C)2000,JPO