Ozone Water Storage Stability via Redox Control and Microbubbles
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Solution Overview
Problem
Ozone water has low solubility and short half-life when dissolved in water, making it difficult to store and transport effectively, limiting its practical use due to the need for on-site production and handling of ozone gas.
Innovation Solution
Generating ozone-microbubbles and dissolving specific organic iron compounds and inorganic salts in water to enhance storage stability, using a microbubble generator to produce microbubbles with a size of 5 to 50 μm, and maintaining a redox potential of at least +600 mV to stabilize ozone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ozone gas is dissolved in water by bubbling method, then ozone water can be produced, but the storage stability is poor and half-life is short
Solution Approach 1:
The patent applies parameter changes by controlling the redox potential of water to at least +600 mV through ozone introduction, and by precisely controlling the concentrations of organic iron compounds (0.1 μM to 1 mM) and inorganic salts (1 to 300 mM). These parameter adjustments stabilize ozone in water, extending its half-life from minutes to days while maintaining storage stability.
Solution Approach 2:
The patent creates a composite system by combining ozone with organic iron compounds and inorganic salts in water. This composite approach forms a stable mixture where the interaction between ozone, iron compounds, and salts enhances ozone stability. The composite material approach allows ozone to be stored in water for extended periods without rapid decomposition.
2Ease of operation
If ozone gas is dissolved in water at the site of use, then the effects of ozone can be utilized, but a production apparatus must be brought to the site and exhaust ozone countermeasures are required
Solution Approach 1:
The patent applies preliminary action by pre-stabilizing ozone in water with extended half-life through the addition of organic iron compounds and inorganic salts. This allows ozone water to be prepared in advance and stored for days before use, eliminating the need to transport and operate ozone generation equipment at the site of use. The preliminary stabilization action enables convenient storage and transportation of ozone water.
3Adaptability or versatility
If ozone is used after dissolving in water, then versatility is improved, but solubility remains low and storage stability deteriorates
Solution Approach 1:
The patent applies parameter changes by adjusting the redox potential to at least +600 mV and controlling the concentrations of organic iron compounds and inorganic salts. These parameter modifications enhance ozone solubility and stability in water, allowing higher concentrations of dissolved ozone to be maintained over extended periods, thereby improving both versatility and quantity of dissolved ozone.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method extends the half-life of ozone water to 3 days at 40°C and maintains stability during cryopreservation, providing a non-irritating and non-toxic solution with sterilizing and deodorant effects.
Implementation Method 1
ozone has to be dissolved in water to be used as an ozone water
Implementation Method 2
a water with ozone-microbubbles generated using an ozone gas
Implementation Method 3
the dissolution of the organic iron compound and the inorganic salt in the water with ozone-microbubbles generated is performed at an elapsed time of 20 minutes or longer after the redox potential of the water with ozone-microbubbles generated, which increases, reaches at least +600 mV
Implementation Method 4
a microbubble generator that employs a two-phase flow swirling method
Implementation Method 5
a microbubble generator that employs a pressurized dissolution method
Implementation Method 6
ozone, which has an oxidative effect, a sterilizing effect, a deodorant effect
Data Source
AI summary
An object of the present invention is to provide an ozone water having enhanced storage stability and a method for producing the ozone water. An ozone water of the present invention as a means for resolution is produced by dissolving 0.1 μM to 1 mM of an organic iron compound and 1 to 300 mM of an inorganic salt in a water with ozone-microbubbles generated using an ozone gas at a concentration of 1 to 300 g/Nm3. The half-life of ozone of the ozone water of the present invention is 3 days or longer, for example, when the water filled in an airtight container under atmospheric pressure is stored under a temperature condition of 40° C.