Patent ID: 8241634

Claim:
An application method of a trap carbon supply device for large scale cultivation of micro-algae in an open pond, the trap carbon supply device comprising a trap container, a partition plate, and a gas distributor, wherein the partition plate is installed vertically in the trap container and has a 10-50 cm gap from a bottom of the container, the partition plate being higher than a wall of the trap container; and the gas distributor being positioned at the bottom of the trap container, the application method comprising embedding the trap carbon supply device in a bottom of the open pond, wherein an upper end edge of the trap carbon supply device is aligned with the bottom of the open pond, and the partition plate is above a liquid level of a culture solution in the open pond such that the culture solution driven by a stirrer flows into the trap carbon supply device from one side thereof, passes through the bottom thereof, and flows out of the device from another side thereof; a flow rate of the culture solution in the trap carbon supply device is each 0.5-50 cm/s during flowing downwards and upwards; and a flux of CO 2 gas, calculated as pure CO 2 at standard condition, at the bottom of the trap carbon supply device is 0.1-20 L/min per meter width.