| 摘要 |
Provided is a gas-dissolved water supply system that can efficiently produce highly concentrated gas-dissolved water and can circulate and supply the water to a use point. To a storage tank 1, waste water (cleaning waste water) that is water containing dissolved gas (oxygen) used for cleaning an object to be cleaned is reserved through piping 15, and feeding water is supplied through feeding water piping 1a. The water in the storage tank 1 is sent to a purification device 4 via a pressure feeding pump 2 and a heat exchanger 3 for keeping the water temperature constant. The water from which foreign substances are removed by the purification device 4 is sent to a degasser 6 via a flowmeter 5. Then, a gas is dissolved in the water by a gas-dissolving apparatus 7, a chemical is added to the water, and the water is supplied to a use point. |
