JPH04313384A - Production of active water - Google Patents

Abstract

PURPOSE:To easily produce active water into which abundant oxygen is dissolved by firstly giving ultrasonic wave vibration to water to be treated and generating bubbles to deaerate it and thereafter blowing oxygen thereinto. CONSTITUTION:The vibrator 4 of an ultrasonic wave generator 3 is provided on the bottom of a deaeration chamber 2. Firstly water in a water tank 1 is introduced into a deaeration chamber 2. When ultrasonic wave vibration is given, cavitation phenomena are caused and abundant bubbles are generated and water is deaerated. In this case, if necessary, a fixing agent of ammonia is introduced to solidify an ammonia component dissolved in water. Then the deaerated water is sent to an aeration chamber 7. When gaseous oxygen is blown thereinto via a decompression controlling valve 9 from an oxygen cylinder 8, oxygen is favorably dissolved into this water from which inert gas is forcedly purged and water having high activity is obtained.

Description

[Detailed description of the invention]

0001

TECHNICAL FIELD The present invention relates to a method for producing active water containing a large amount of dissolved oxygen.

0002

[Prior Art] Conventionally, aeration, in which air is artificially blown into water in order to promote decomposition reactions in wastewater treatment, has been widespread. Aeration equipment, which blows air or oxygen into the water using an air pump, is also used to activate domestic water, but the amount of dissolved oxygen is low;
There was a limit to the amount of oxygen dissolved even if the number of air bubbles and pressure were increased.

On the other hand, for example, when live fish are stored at high density in an aquarium truck and transported over long distances, and in order to further increase the storage density, the water temperature is lowered to slow down the live fish's activity and transported for a long time. However, with conventional activated water, there is a problem that live fish die due to lack of oxygen. Also, when cultivating fish in an aquarium, growth is better in water with a large amount of dissolved oxygen, and as the tank capacity increases, a large amount of water must be activated, so it is necessary to activate fish with high efficiency. A law is required.

[0004] Furthermore, beer, whiskey, sake,
It is known that when activated water is used in the production of foods that involve fermentation, such as soy sauce, bread, and tofu, the fermentation time can be significantly shortened.

[0005]

[Problems to be solved by the invention] Therefore, the present invention solves the following problems:
An object of the present invention is to provide a method for producing activated water that dissolves a large amount of oxygen in a large amount of water in a short period of time.

[0006]

[Means for Solving the Problems] The present invention is characterized by applying ultrasonic vibration to water to be treated to generate air bubbles, and then blowing oxygen into the water. The frequency of ultrasound is 20
A range of Hz to 1 MHz is preferred.

[0007]

[Operation] When ultrasonic vibrations are applied to water, a cavitation phenomenon occurs, which is more intense than a boiling phenomenon even at room temperature, and a large number of gas bubbles are generated from the water. The gas bubbles contain a large amount of inert gases such as nitrogen gas, carbon dioxide gas, and methane gas dissolved in the water, rather than water vapor. Since oxygen is blown into the water from which the inert gas has been forcibly removed, the water dissolves oxygen well, resulting in highly active water.

[0008]

[Example] Fig. 1 shows an example of a water activation device. Water in the water tank 1 is introduced into the degas chamber 2. A vibrator 4 of an ultrasonic generator 3 is provided at the bottom of the aeration chamber 2, and a vacuum pump 5 is connected to the ceiling of the aeration chamber 2. Escape room 2
A liquid level gauge 18 is provided at the upper part of the liquid level gauge 18, and the opening degree of the flow rate control valve 10 is controlled by this detection signal to keep the liquid level constant. Further, an ammonia fixing agent is injected into the deaeration chamber 2 as needed to solidify the ammonia component dissolved in the water. This device can be used for a long time in aquarium 1.
When fish live there, it is extremely important to prevent the water from being contaminated by fish excrement and degrade the environment in which the fish can survive, and to revitalize the fish.

The water leaving the aeration chamber 2 is sent into the aeration chamber 7 through a filter 6 for preventing air bubbles and fixed ammonia components from passing through. Oxygen cylinder 8 in aeration room 7
Oxygen gas is blown into the water after passing through the pressure reduction control valve 9. Instead of this oxygen cylinder, an air supply device that blows air in the atmosphere may be used. The activated water passing through the aeration chamber 7 is returned to the water tank 1 again. Pumps P are provided at necessary locations in this circulation system. Additionally, a seawater concentrate replenishment device or the like can be added as necessary. This embodiment is suitable for an aquarium for transporting live fish by car or ship, an aquaculture tank, an aquarium for breeding live fish, and the like.

As a modification of this embodiment, instead of the ammonia fixative injection device, a bypass is provided in parallel with the path from the outlet of the water tank 1 to the inlet of the aeration chamber 2 or the aeration chamber 7. A semipermeable membrane separator capable of blocking passage of the ammonia component may be provided in the bypass. FIG. 2 shows another embodiment of the water activation device. Water supply pipe 11
The water supplied through the valve 12 is introduced into the degasification chamber 13, receives ultrasonic energy from the ultrasonic vibrator 4, is degassed, and is transferred to the activated water tank 14. The activated water tank 14 has oxygen gas blowing nozzles 15 disposed on its bottom surface, and stores activated water. Activated water can be taken out at any time by opening the activated water outlet valve 16. When a drop in the water level is detected by the water level gauge 17, the valve 12 is opened and tap water is replenished. If the water in the activated water tank 14 cannot have a sufficient water head to prevent backflow to the vacuum pump 5, the transfer pipe 19 may be provided with a check valve and a pump. This embodiment is suitable for obtaining activated water for agriculture, horticulture, food industry, and domestic use.

[0011]

[Effects of the Invention] Due to physical changes, deaeration treatment by ultrasonic cavitation can be carried out explosively in a very short time even on a large amount of water, and immediately after that, aeration treatment is carried out. Just as dry sand absorbs water, it can dissolve large amounts of oxygen into water.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of an embodiment of an apparatus for carrying out the present invention.

FIG. 2 is a configuration diagram of another embodiment of an apparatus for carrying out the present invention.

[Explanation of symbols]

1...Aquarium 2... Escape room 3...Ultrasonic generator 4... Ultrasonic vibrator 7...Aeration room 8...Oxygen cylinder 12... Escape room 14... Active water tank 15...Oxygen blowing nozzle

Claims (2)

[Claims] 1. A method for producing activated water, which comprises applying ultrasonic vibration to water to be treated to generate air bubbles, and then blowing oxygen into the water. 2. The method for producing activated water according to claim 1, wherein the location where the gas bubbles are generated is communicated with a vacuum pump.