Liquid treatment method and liquid treatment apparatus for treating a liquid with plasma
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United States of America Patent
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Jan 2, 2018
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app pub date -
Apr 28, 2016
filing date -
May 18, 2015
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Abstract
A liquid treatment method according to an aspect of the present disclosure comprises: starting application of a power between a pair of electrodes to generate plasma, which causes active species to be produced in a liquid; measuring the hydrogen ion concentration in the liquid while the plasma is generated; measuring a time elapsed after the starting the application of the power; and stopping the application of the power when a value calculated by (a) multiplying the hydrogen ion concentration by the elapsed time or (b) integrating the hydrogen ion concentration with respect to the elapsed time is larger than a first threshold.
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