CN-122010600-A - Application of activated water in promoting crop growth

Abstract

The invention provides application of activated water in promoting crop growth, which comprises the steps of introducing working gas into a plasma generator to react to obtain plasma gas, introducing the plasma gas into a water body to treat the plasma gas to obtain plasma activated water, and then carrying out light-shielding standing on the plasma activated water for 10-50 hours to obtain the activated water, or carrying out mixed reaction of the plasma gas and ozone and introducing the water body to treat the mixture to obtain the activated water. The activated water can effectively reduce the content of peroxynitrite and promote the growth of crops.

Inventors

• XU HANGBO
• MA RUONAN
• JIAO CHENG
• CUI DONGJIE
• GUAN PANFENG

Assignees

• 郑州大学

Dates

Publication Date

20260512

Application Date

20260128

Claims (10)

1. 1. The application of the activated water in promoting the growth of crops is characterized in that working gas is introduced into a plasma generator to react to obtain plasma gas, the plasma gas is introduced into a water body to perform activation treatment to obtain plasma activated water, and then the plasma activated water is subjected to light-shielding standing for 10-50 hours to obtain the activated water, or the plasma gas and ozone are mixed to react and then are introduced into the water body to perform activation treatment to obtain the activated water.
2. 2. The use of activated water according to claim 1, wherein the working gas is one or more of air, a mixture of nitrogen and oxygen, a mixture of air and nitrogen, a mixture of air and oxygen, or a mixture of air, nitrogen and oxygen.
3. 3. The use of activated water in promoting crop growth as in claim 1 wherein the plasma generator comprises one of a dielectric barrier discharge device, a plasma jet device or a microwave plasma device.
4. 4. The use of activated water according to claim 1 for promoting crop growth, characterized in that the flow rate of the working gas is 15L/min to 30L/min.
5. 5. The use of activated water in the promotion of crop growth as claimed in claim 1, Ozone is generated by an ozone generator.
6. 6. The use of activated water according to claim 1 or 5 for promoting crop growth, characterized in that the concentration of ozone is 500ppm to 5000ppm.
7. 7. The use of activated water according to claim 1 or 5 for promoting crop growth, characterized in that the flow rate of ozone is 5L/min to 15L/min.
8. 8. The application of activated water according to claim 1, wherein the time of the activation treatment is 1 min-30 min.
9. 9. The use of activated water in promoting crop growth as claimed in claim 1 wherein the body of water is one or more of deionized water, tap water or natural water sources.
10. 10. The application of activated water in promoting crop growth according to claim 1, wherein the volume of the water body is 50 ml-1000 ml.

Description

Application of activated water in promoting crop growth Technical Field The invention relates to the technical field of low-temperature plasma activated water, in particular to application of activated water in promoting crop growth. Background Low temperature Plasma Activated Water (PAW) is widely studied and reported as a novel disinfectant. For example, chinese patent publication No. CN119430372a discloses a system and method for enhancing the sterilizing effect of plasma activated water, in which an underwater double-bubble plasma generator is electrically connected to a low-temperature plasma power supply, a pair of bubble reactors are arranged at intervals and are at least partially immersed in a container, metal rods extend in a quartz tube through a positioning ring connected to the mouth of the quartz tube, the metal rods are connected to the low-temperature plasma power supply, an air passage introduces gas into the quartz tube through the positioning ring, a nitrogen source is connected to one bubble reactor to introduce nitrogen gas through the air passage, an argon source is connected to the other bubble reactor to introduce argon gas through the air passage, when voltages are applied to two metal rods of the pair of bubble reactors, the two bubble reactors are simultaneously discharged to generate plasmas to generate NO 2- and H 2O2 active particles, respectively, and NO 2- and H 2O2 active particles react to generate peroxynitrous acid (ono)) The chemical path based on the system realizes the enhancement of the sterilization and disinfection functions of the plasma activated water. However, there are few reports of using low-temperature plasma activated water for crop growth because the PAW contains peroxynitrous acid, and the strong oxidizing property of the peroxynitrous acid causes oxidative damage to the crop, which is unfavorable for crop growth. Disclosure of Invention The invention aims to solve the technical problem of how to reduce peroxynitrous acid in plasma activated water. The invention solves the technical problems by the following technical means: The invention provides application of activated water in promoting crop growth, which comprises the steps of introducing working gas into a plasma generator to react to obtain plasma gas, introducing the plasma gas into a water body to treat the plasma gas to obtain plasma activated water, and then carrying out light-shielding standing on the plasma activated water for 10-50 hours to obtain the activated water, or carrying out mixed reaction of the plasma gas and ozone and introducing the water body to treat the mixture to obtain the activated water. The method has the beneficial effects that the peroxynitrite in the plasma activated water is naturally decomposed by the light-shielding standing of the plasma activated water, so that the aim of reducing the peroxynitrite content is fulfilled, and meanwhile, the activated water contains nitrate and nitric oxide and cannot be changed when the activated water stands in a light-shielding manner, so that the activated water can be used as a nitrogenous fertilizer to promote the growth of crops. According to the invention, the plasma gas and ozone are mixed and reacted and then introduced into the water body for activation treatment, so that the generation of peroxynitrite in activated water can be effectively inhibited, and the generation of nitrate radical can be promoted, thereby realizing the purpose of reducing the content of peroxynitrite and further promoting the growth of crops. Preferably, the working gas is one or more of air, a mixed gas of nitrogen and oxygen, a mixed gas of air and nitrogen, a mixed gas of air and oxygen, or a mixed gas of air, nitrogen and oxygen. Preferably, the plasma generator comprises one of a dielectric barrier discharge device, a plasma jet device or a microwave plasma device. Preferably, the flow rate of the working gas is 15L/min-30L/min. Preferably, the ozone is generated by an ozone generator. Preferably, the concentration of ozone is 500ppm to 5000ppm. Preferably, the flow rate of ozone is 5L/min-15L/min. Preferably, the treatment time is 1 min-30 min. Preferably, the water body is one or more of deionized water, tap water or natural water sources. Preferably, the volume of the water body is 50 mL-1000 mL. Drawings FIG. 1 is a block diagram of an apparatus used in embodiment 1 of the present invention; FIG. 2 is a block diagram of an apparatus used in embodiment 2 of the present invention; FIG. 3 is a graph showing the peroxynitrous acid content of the activated water produced in example 1 and the plasma activated water produced in comparative example 1 according to the present invention; FIG. 4 is a graph showing the peroxynitrous acid content of the activated water produced in example 2 and the plasma activated water produced in comparative example 1 according to the present invention; FIG. 5 is a graph showing nitrate content in the activated wat