| 摘要 |
PURPOSE:To carry out mass culture of an alga while readily controlling the temperature and the irradiation light volume and effectively preventing contamination with a foreign material, etc., by using a specified apparatus. CONSTITUTION:An alga-culturing pond 2 is set in an air-doom type greenhouse 3 covered with a sunlight-transmitting film, capable of taking in the air by a fan 4 and designed so as to keep the inside to a positive pressure. The irradiation light volume is adjusted by using a low light-transmitting film or a light- screening sheet and the temperature is controlled by ventilation heating, etc. A filter is set to the air inlet of the air doom so that the inside of the cultivator 1 may be filled with a pure air and kept to a positive pressure. Thus, the objective culture is carried out. |
