METHOD OF MANUFACTURING DEIONIZED WATER, AND HYDROPONICS METHOD AND APPARATUS

摘要

PROBLEM TO BE SOLVED: To efficiently and stably manufacture pure water which can be utilized for liquid fertilizer preparation for hydroponics.

SOLUTION: The rain 28 falling onto the roof of a hydroponics house 27 is stored in a rain water storage tank 21 and the stored rain water is supplied to a pure water manufacturing apparatus 20 of a reverse osmosis membrane system. The pure water obtained as filtrate water is transferred into a liquid fertilizer storage tank for the hydroponics apparatus and the concentrate discharged without being filtered by the pure water manufacturing apparatus 20 is returned to the rain water storage tank 21 and is recycled.

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