GAS DISSOLVING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a gas dissolving device capable of dissolving a large amount of gas, easily adjusting a gas pressure for adjusting a water level and effectively cleaning a quality of water. SOLUTION: The gas dissolving device comprises a liquid feeding means for feeding a liquid to a closed tank; a gas feeding means for feeding a gas into the closed tank; and a baffle plate provided in the closed tank. The baffle plate is arranged so as to collide with the liquid fed from the liquid feeding means. The gas from the gas feeding means is fed into the closed tank and the gas at a space in the closed tank is conducted to a suction side or a discharge side of a pump or a line mixer to release it into the closed tank. A flocculant for aggregating a water quality contaminant or a microorganism capable of decomposing the contaminant is mixed and a means for decomposing/ disinfecting the contaminant is provided.