PROCESS FOR PRODUCING WATER SUPERSATURATED WITH DISSOLVED OXYGEN

摘要

The present invention provides a method for producing supersaturated dissolved oxygen-containing water, capable of increasing dissolved oxygen concentration of water to a value largely exceeding saturated dissolved oxygen concentration. Water is put in a circulation pathway composed of a tank 10 and a cyclic connecting pipe 12, and a pump 16 and silicon dioxide-rich rock 22 of igneous rock are provided in the midstream of the cyclic connecting pipe 12. The water is circulated without contact with air between the tank 10 and the cyclic connecting pipe 12 and brought into contact with the rock 22 by operating the pump 16. Water high in dissolved oxygen can be produced by cyclically bringing the water moving in the circulation pathway into contact with the silicon dioxide-rich rock 22 of igneous rock without contact with air.