A method for treating wastewater from a wet air oxidation process

Abstract

The application discloses a kind of wet oxygen technology wastewater treatment methods, specifically related to wastewater treatment field, including by the way of bubble diffusion wet oxygen is injected into wastewater, so that oxygen molecules and pollutants in wastewater contact each other;Real-time monitoring environmental impact information, based on environmental impact information monitoring comprehensive environmental impact value, if comprehensive environmental impact value meets the preset comprehensive environmental impact threshold range, then the current wastewater environment is drafted as initial oxidation environment;Environmental impact information includes bubble diameter, gas residence time, gas-liquid ratio;Hydrogen peroxide or ozone or hypochlorite is introduced to the initial oxidation environment in wet oxygen system.The concentration of oxidizing agent and distribution mode are optimized by real-time monitoring parameters such as bubble diameter, gas residence time and gas-liquid ratio, and an oxidation reaction path model based on free radical generation efficiency is constructed to achieve efficient targeted degradation of pollutants.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wastewater treatment, more particularly, the present application relates to a wet oxygen technology wastewater treatment method. BACKGROUND

[0002] Wet oxygen technology wastewater treatment is a treatment technology that uses oxygen as an oxidizing agent at high temperature and high pressure or at room temperature, injects wet oxygen into wastewater to initiate oxidation reaction; its core principle is to generate highly active oxidizing substances such as free radicals through the full contact of oxygen with pollutants in wastewater under external conditions, thereby promoting the oxidative decomposition of pollutants; this technology is widely used in the treatment of complex or high-concentration polluted wastewater, can effectively remove organic matter, reduce chemical oxygen demand, and decompose part of the refractory pollutants, and is a wastewater treatment method with high efficiency and environmental protection;

[0003] As a leading method in the field of wastewater treatment, wet oxygen technology is an important means for treating complex pollutants by injecting oxygen into wastewater to initiate oxidation reaction; however, the limitations of traditional wet oxygen technology lie in the lack of dynamic control ability for oxygen injection and reaction conditions, which easily leads to low utilization rate of oxidizing agent, incomplete degradation of pollutants, and high operating cost; in addition, the traditional technology is difficult to achieve efficient generation of free radicals and complete degradation of intermediate products when treating high-concentration or complex-type wastewater, resulting in a significant decline in treatment efficiency and safety. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present application provide a wet oxygen technology wastewater treatment method, which optimizes the concentration and distribution of oxidizing agent by monitoring parameters such as bubble diameter, gas residence time and gas-liquid ratio in real time, and builds an oxidation reaction path model based on the efficiency of free radical generation, to realize efficient targeted degradation of pollutants, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a wet oxygen technology wastewater treatment method, comprising:

[0006] Injecting wet oxygen into wastewater by bubble diffusion, so that oxygen molecules and pollutants in wastewater contact with each other;

[0007] Real-time monitoring of environmental impact information, monitoring the comprehensive environmental impact value based on the environmental impact information, if the comprehensive environmental impact value meets the preset comprehensive environmental impact threshold range, then the current wastewater environment is determined as the initial oxidation environment;

[0008] The environmental impact information includes bubble diameter, gas residence time, and gas-liquid ratio;

[0009] The hydrogen peroxide or ozone or hypochlorite is introduced into the initial oxidation environment in the wet oxygen system, and by controlling the concentration and distribution of the oxidant, the oxidation reaction path of the pollutant decomposition is optimized, and the oxidation reaction path model of the targeted degradation ability of specific organic compounds is established;

[0010] The oxidation reaction path model determines whether the expected standard is reached based on the first influencing factor, the second influencing factor, and the third influencing factor;

[0011] The first influencing factor includes the free radical generation efficiency, the second influencing factor includes the intermediate product degradation path, and the third influencing factor includes the reaction selectivity and side reaction control.

[0012] In a preferred embodiment, a first factor is used to establish a first environment determination condition, and if the first environment determination condition is determined to be abnormal, the wastewater is introduced into the transient active electrons through the pulsed plasma device;

[0013] The first factor includes the oxygen molecule excitation energy level distribution and the free radical generation saturation rate.

[0014] The first environment determination condition is that if the oxygen molecule excitation energy level distribution is lower than the preset target energy level, and the free radical generation saturation rate is less than the preset free radical generation saturation rate threshold.

[0015] In a preferred embodiment, the influence of oxygen transfer and environmental changes on the oxidation reaction in the gas-liquid environment is represented by a comprehensive environmental impact value, and the comprehensive environmental impact value is E env , based on the wet oxygen injection and the initial oxidation environment determination;

[0016]

[0017] Wherein is the cumulative consideration of environmental changes in the entire reaction period; r is the bubble diameter; p g is the density of the wet oxygen gas; T s (t) is the gas residence time; (t) is the instantaneous change value of the gas-liquid ratio; The solubility ratio of oxygen molecules is used to measure whether the solubility of oxygen molecules in water is close to saturation during the formation process.

[0018] In a preferred embodiment, the oxidation reaction path model is embodied by the oxidant optimization and targeted degradation ability, and the oxidation reaction path model includes the oxidant optimization factor, the first influencing factor, the second influencing factor, and the third influencing factor.

[0019] The oxidant optimization factor embodies the control of the oxidant concentration and distribution by describing the influence of the oxidant type, concentration, distribution, and reaction activation energy on the oxidation rate.

[0020] The first influencing factor expresses the radical generation efficiency through the radical generation efficiency coefficient and the radical utilization efficiency;

[0021] The second influencing factor expresses the intermediate degradation pathway by quantifying the generation and degradation process of the intermediate;

[0022] The third influencing factor expresses the reaction selectivity and side reaction control through the byproduct inhibition factor.

[0023] In a preferred embodiment, the oxidant optimization factor is expressed as:

[0024]

[0025] The first influencing factor is expressed as:

[0026] β·η free

[0027] The second influencing factor is expressed as:

[0028]

[0029] The third influencing factor is expressed as:

[0030]

[0031] The oxidation reaction rate is calculated through the oxidation reaction pathway model, and the oxidation reaction rate is expressed as R ox , R ox for evaluating the oxidant optimization effect and the targeted degradation ability;

[0032]

[0033] where N is the total number of oxidant species; κ i is the reaction rate constant of the i-th oxidant; is the effective concentration of the oxidant; P i is the actual distribution deviation value of the i-th oxidant; P max is the oxidant distribution value under ideal distribution; E a is the reaction activation energy of the target pollutant; R is the universal gas constant; T is the reaction temperature; β is the radical generation efficiency coefficient; η free is the radical utilization efficiency; ΔC int is the intermediate concentration change; C tot is the total pollutant concentration; δ side is the byproduct inhibition factor.

[0034] In a preferred embodiment, the number ratio of oxygen molecules from the ground state to the excited state is reflected by the excitation energy level distribution of oxygen molecules, and the correlation between oxygen molecules and the energy input and temperature conditions of the reaction system; the comprehensive model of the excitation energy level distribution of oxygen molecules is described by quantifying the particle number density and excitation probability of oxygen excitation;

[0035]

[0036] wherein is the sum of the excitation energy level distribution of oxygen molecules in the system; M is the total number of excitation energy levels; N j is the number of oxygen molecules at the jth energy level; f j is the excitation state distribution factor, which represents the proportion of oxygen molecules at the jth energy level in the total number of molecules; E j is the energy value of the jth energy level; γ j is the excitation probability factor, which is used to reflect the possibility of the jth energy level being excited;

[0037] The number of free radicals generated per unit time is described by the free radical generation saturation rate, which approaches the upper limit of the generation capacity, and its generation rate depends on the oxidant concentration, the reaction path, and the concentration of generated free radicals. The non-linear dynamic characteristics of free radical generation are described by constructing a saturation term to modify the reaction rate;

[0038]

[0039] wherein R free is the free radical generation saturation rate; k gen is the free radical generation rate constant; C prec is the precursor concentration of the oxidant; C free is the actual concentration of free radicals in the current system; C sat is the upper limit of the saturation concentration of free radical generation.

[0040] In a preferred embodiment, the plasma device generates active electrons through pulsed discharge, and the active electrons excite oxygen molecules through collision or directly form free radicals; J plasma is the active electron flux generated by the plasma; the relationship between electron flux, electron density, electric field strength, and drift velocity is described by J plasma ;

[0041] J plasma = e·n e ·v e ·E·Δt·V

[0042] wherein e is the charge amount of a single electron; n e is the electron density per unit volume; v eis the electron drift velocity; E is the electric field strength of the plasma; At is the time width of a single pulse; V is the volume of the wastewater treatment area.

[0043] Technical effects and advantages of the present application:

[0044] 1. The present application realizes multi-level dynamic optimization of wastewater treatment through the synergistic effect of wet oxygen technology and oxidizing agents, including wet oxygen injection, real-time monitoring of environmental conditions, control of oxidizing agent concentration and distribution, and construction of an oxidation reaction path model, thereby effectively degrading complex pollutants. The core innovation lies in real-time monitoring of environmental conditions and dynamic adjustment of oxidizing agent dosage, ensuring the efficiency and selectivity of the oxidation reaction path. This design relatively improves the efficiency of free radical generation, avoids the accumulation of intermediate products, and inhibits side reactions, solving the problems of low efficiency and by-products in existing wastewater treatment technologies.

[0045] 2. By real-time monitoring of environmental impact information such as bubble diameter, gas residence time, and gas-liquid ratio, the environmental impact value is calculated to determine whether the wastewater environment meets the initial oxidation conditions, thereby avoiding unnecessary resource waste.

[0046] 3. By constructing an oxidation reaction path model, combining oxidizing agent optimization factors, free radical generation efficiency, intermediate product degradation path, and by-product inhibition factors, the targeted degradation ability of specific organic compounds is ensured, solving the problems of incomplete degradation of pollutants and unstable degradation efficiency in traditional wastewater treatment technologies.

[0047] 4. In the case of abnormal wastewater environmental conditions, the pulse plasma device instantaneously introduces active electrons, rapidly excites oxygen molecules to generate highly active oxidation free radicals, improves the oxidation capacity of the system, and provides a reliable compensation scheme for the problem of insufficient free radical generation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0048] Figure 1 Flowchart of the present application. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0050] With reference to the accompanying drawings in the description, Figure 1 , a wet oxygen technology wastewater treatment method according to an embodiment of the present application includes:

[0051] The wet oxygen is injected into the wastewater by a bubble diffusion method, so that oxygen molecules and pollutants in the wastewater are in contact with each other;

[0052] The environmental impact information is monitored in real time, a comprehensive environmental impact value is monitored based on the environmental impact information, and if the comprehensive environmental impact value meets a preset comprehensive environmental impact threshold range, the current wastewater environment is determined as an initial oxidation environment;

[0053] The environmental impact information includes bubble diameter, gas residence time, and gas-liquid ratio.

[0054] Hydrogen peroxide, ozone, or hypochlorite is introduced into the initial oxidation environment in the wet oxygen system, and by controlling the concentration and distribution of the oxidant, the oxidation reaction path for pollutant decomposition is optimized, and an oxidation reaction path model for targeted degradation of specific organic compounds is established.

[0055] The oxidation reaction path model determines whether the expected standard is met based on the first, second, and third impact factors.

[0056] The first impact factor includes free radical generation efficiency, the second impact factor includes intermediate product degradation path, and the third impact factor includes reaction selectivity and side reaction control.

[0057] The wet oxygen is injected into the wastewater by a bubble diffusion method, the diameter of the micro-bubbles and the gas-liquid ratio are controlled to ensure that the oxygen is in sufficient contact with the pollutants, and the best mass transfer conditions are created for the oxidation reaction; at the same time, the bubble diameter, gas residence time, and other parameters are monitored in real time, the comprehensive environmental impact value is dynamically calculated, and the wastewater environment is ensured to meet the initial conditions for the oxidation reaction, which avoids inefficient treatment caused by insufficient reaction conditions; on this basis, hydrogen peroxide, ozone, or hypochlorite is introduced, the concentration and distribution of the oxidant are controlled, the reaction path is optimized, and an oxidation reaction path model based on free radical generation efficiency, intermediate product degradation path, and reaction selectivity is established, so that targeted degradation of specific organic compounds is achieved, and the generation of by-products is inhibited; such design follows the principle of layer-by-layer optimization, and through the organic combination of mass transfer efficiency, real-time monitoring, and path optimization, the treatment process is relatively efficient, safe, and accurate, so that it is suitable for complex pollutant decomposition scenarios.

[0058] A first factor is used to establish a first environmental determination condition, and if the first environmental determination condition is determined to be abnormal, the wastewater is introduced into a transient active electron by a pulsed plasma device.

[0059] The first factor includes oxygen molecule excitation energy level distribution and free radical generation saturation rate.

[0060] One type of environmental judgment condition is: if the oxygen molecule excitation energy level distribution is lower than the preset target energy level, and the free radical generation saturation rate is less than the preset free radical generation saturation rate threshold;

[0061] By establishing an environmental judgment condition based on a first-order factor, dynamic monitoring and accurate feedback are achieved to identify and respond to abnormal environments in wastewater treatment. First, the first-order factor includes the oxygen molecule excitation energy level distribution and the free radical generation saturation rate. The former is used to quantify the distribution state of oxygen molecules between the excited state and the ground state, reflecting the energy supply level of the oxidation system. The latter is used to measure whether the free radical generation rate has reached a saturation state, reflecting the sufficiency of reactive species in the system. When the oxygen molecule excitation energy level distribution is lower than the target energy level, and the free radical generation amount and rate are lower than the threshold, it indicates that the system lacks active oxygen species or the free radical generation ability is limited. At this time, transient high-energy electrons are introduced through a pulsed plasma device. The device generates high-energy electrons under the action of a high-voltage pulsed electric field, which collide with molecules in wastewater to excite oxygen or directly form free radicals, rapidly improving the oxidation capacity and activity of the system. This design combines dynamic monitoring, judgment, and response organically, ensuring that the activity of the reaction system is quickly compensated when the oxidation reaction conditions are insufficient, and is suitable for scenarios requiring efficient oxidation for complex pollutant degradation.

[0062] The influence of oxygen transfer and environmental changes in the gas-liquid environment on the oxidation reaction is represented by a comprehensive environmental impact value, which is denoted as E env , based on wet oxygen injection and initial oxidation environment judgment.

[0063]

[0064] wherein is the cumulative consideration of environmental changes over the entire reaction period; r is the bubble diameter, which is used to control the mass transfer efficiency of oxygen; p g is the density of wet oxygen gas, which is used to determine the mass flow rate of unit gas; T s (t) is the gas residence time, which represents the dynamic residence time of the wet oxygen injection system, i.e., the function of the actual action time of the injected bubbles in the liquid phase; (t) is the instantaneous change value of the gas-liquid ratio, which is used to dynamically describe the influence of the gas-liquid ratio on oxygen transfer. represents the solubility ratio of oxygen molecules, which is used to measure whether the solubility of oxygen molecules in water is close to saturation formation; in addition, the bubble diameter and wet oxygen density in the above formula can be calculated by combining the volume formula and the physical properties of the gas, the residence time and the gas-liquid ratio are based on experimental determination and dynamic adjustment of operating conditions, and the cumulative consideration of changes is integrated, and the solubility ratio of oxygen molecules is calculated from Henry's law, reflecting the mass transfer ability of oxygen in the liquid phase.

[0065] The oxidation reaction pathway model is represented by oxidant optimization and targeted degradation capabilities. The oxidation reaction pathway model includes oxidant optimization factors, first influencing factor, second influencing factor, and third influencing factor.

[0066] The oxidant optimization factors describe the effects of oxidant type, concentration, distribution, and reaction activation energy on the oxidation rate, thereby reflecting the control of oxidant concentration and distribution mode;

[0067] The first influencing factor is expressed by the free radical generation efficiency coefficient and the free radical utilization efficiency;

[0068] The second influencing factor expresses the degradation pathway of intermediate products by quantifying the generation and degradation processes of intermediate products;

[0069] The third influencing factor expresses reaction selectivity and side reaction control through byproduct inhibitors;

[0070] By constructing an oxidation reaction pathway model, this study comprehensively considers oxidant optimization and its impact on pollutant degradation to achieve efficient oxidative degradation. The core of the scheme is to decompose the oxidation reaction process into three key influencing factors: free radical generation efficiency, intermediate product degradation pathway, and byproduct inhibition control. First, through oxidant optimization factors, combined with the type, concentration, and distribution of oxidants, the oxidation rate and activation energy are regulated to ensure that the oxidant can effectively act on the target pollutant. This step achieves spatial and kinetic optimization of the reaction through precise control of oxidant dosage and distribution. Second, the first influencing factor focuses on free radical generation efficiency, using the free radical generation rate and utilization rate to characterize the system's reactive oxygen species capacity, ensuring that free radicals can maximize their effect on pollutant molecules. Then, the second influencing factor deeply analyzes the generation and degradation pathway of intermediate products, optimizing intermediate steps of degradation through model prediction and monitoring to avoid intermediate product accumulation that hinders degradation efficiency. Finally, the third influencing factor controls reaction selectivity and side reactions through byproduct inhibition factors, minimizing the generation of harmful byproducts and thus achieving safe degradation of pollutants. The entire model's design logic is based on the step-by-step optimization of the oxidation reaction process, ensuring oxidation efficiency, precise degradation pathways, and minimal byproducts.

[0071] The proposed oxidant optimization factors are expressed as follows:

[0072]

[0073] The proposed primary influencing factor is expressed as:

[0074] β·η free

[0075] The proposed second influencing factor is expressed as follows:

[0076]

[0077] The third influencing factor is expressed as:

[0078]

[0079] The oxidation reaction rate is calculated by an oxidation reaction path model, and the oxidation reaction rate is expressed as R ox , R ox is used to evaluate the optimization effect of the oxidant and the targeted degradation capacity;

[0080]

[0081] where N is the total number of oxidant species, N includes hydrogen peroxide, ozone and hypochlorite; κ i is the reaction rate constant of the i-th oxidant, and the reaction rate constant is used to reflect the kinetic characteristics of the reaction between the oxidant and the target pollutant; is the effective concentration of the oxidant, which represents the amount of oxidant participating in the oxidation reaction; P i is the actual distribution deviation value of the i-th oxidant, which represents the uniformity of the distribution of the oxidant in the wastewater system; P max is the oxidant distribution value under ideal distribution, P max is used to correct the influence of the actual distribution on the reaction rate; E a is the reaction activation energy of the target pollutant, which represents the minimum energy required for chemical reaction; R is the universal gas constant; T is the reaction temperature; β is the free radical generation efficiency coefficient; η free is the free radical utilization efficiency; ΔC int is the intermediate product concentration change, which is used to describe the degradation path of the intermediate product; C tot is the total pollutant concentration; δ side is the byproduct inhibition factor, which is used to describe the control effect of reaction selectivity on byproducts.

[0082] The excitation energy level distribution of oxygen molecules is used to reflect the number ratio of oxygen molecules from the ground state to the excited state, as well as the correlation between oxygen molecules and energy input and temperature conditions of the reaction system; by quantifying the particle density and excitation probability of oxygen excitation, a comprehensive model of oxygen molecule excitation energy level distribution is described;

[0083]

[0084] where is the total excitation energy level distribution of oxygen molecules in the system; M is the total number of excitation energy levels; N j is the number of oxygen molecules at the j-th energy level; f jEj is the energy value of the jth energy level; γ j Ej is the energy value of the jth energy level; γ j Ej is the energy value of the jth energy level; γ

[0085] The radical generation saturation rate describes how the number of radicals generated per unit time approaches the upper limit of the generation capacity, which depends on the oxidant concentration, the reaction path, and the concentration of the generated radicals. The non-linear dynamic characteristics of radical generation are described by constructing a saturation term to modify the reaction rate.

[0086]

[0087] where R free is the radical generation saturation rate; k gen is the radical generation rate constant; C prec is the precursor concentration of the oxidant; C free is the actual concentration of radicals in the current system; C sat is the upper limit of the saturation concentration of radical generation; the above formula determines the maximum potential of radical generation in the system through k gen and C prec The saturation term corrects the non-linear behavior of the generation rate, thereby avoiding overestimating the rate at high radical concentrations.

[0088] The plasma device generates active electrons instantaneously through pulse discharge, and the active electrons excite oxygen molecules through collision or directly form radicals; J plasma is the active electron flux generated by the plasma; J plasma describes the relationship between electron flux, electron density, electric field strength, and drift velocity;

[0089] J plasma = e·n e ·v e ·E·Δt·V

[0090] where e is the charge amount of a single electron; n e is the electron density per unit volume; v e is the electron drift velocity; E is the electric field strength of the plasma; Δt is the time width of a single pulse; and V is the volume of the wastewater treatment area.

[0091] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method for treating wastewater using wet oxygen technology, characterized in that, include: Wet oxygen is injected into the wastewater through bubble diffusion, allowing oxygen molecules to come into contact with pollutants in the wastewater. Real-time monitoring of environmental impact information; monitoring of comprehensive environmental impact value based on environmental impact information; if the comprehensive environmental impact value meets the preset comprehensive environmental impact threshold range, then the current wastewater environment is designated as the initial oxidation environment. Environmental impact information includes bubble diameter, gas residence time, and gas-liquid ratio; Hydrogen peroxide, ozone, or hypochlorite is introduced into the initial oxidation environment of the wet oxygen system. By controlling the concentration and distribution of the oxidant, the oxidation reaction pathway for pollutant decomposition is optimized, and an oxidation reaction pathway model for the targeted degradation of specific organic compounds is established. The oxidation reaction pathway model determines whether the expected standard is achieved based on the first, second, and third influencing factors. The first influencing factor includes the efficiency of free radical generation; the second influencing factor includes the degradation pathway of intermediate products; and the third influencing factor includes reaction selectivity and control of side reactions. The comprehensive environmental impact value is used to represent the intensity of the influence of oxygen transfer and environmental changes on oxidation reactions in the gas-liquid environment. The proposed comprehensive environmental impact value is E. env Based on the determination of wet oxygen injection and initial oxidation environment; in This represents the cumulative impact of environmental changes over the entire reaction period; r is the bubble diameter; ρ g T is the density of moist oxygen gas. s (t) represents the gas residence time; φ(t) represents the instantaneous change in the gas-liquid ratio; The solubility ratio of oxygen molecules is used to measure whether the dissolved state of oxygen molecules in water is close to saturation. The oxidation reaction pathway model is represented by oxidant optimization and targeted degradation capabilities. The oxidation reaction pathway model includes oxidant optimization factors, first influencing factor, second influencing factor, and third influencing factor. The oxidant optimization factors describe the effects of oxidant type, concentration, distribution, and reaction activation energy on the oxidation rate, thereby reflecting the control of oxidant concentration and distribution mode; The first influencing factor is expressed by the free radical generation efficiency coefficient and the free radical utilization efficiency; The second influencing factor expresses the degradation pathway of intermediate products by quantifying the generation and degradation processes of intermediate products; The third influencing factor expresses reaction selectivity and side reaction control through byproduct inhibitors; The proposed oxidant optimization factors are expressed as follows: The proposed primary influencing factor is expressed as: b·h free The proposed second influencing factor is expressed as follows: The proposed third influencing factor is expressed as follows: The oxidation reaction rate is calculated using an oxidation reaction pathway model, and the proposed oxidation reaction rate is R. ox R ox Used to evaluate the optimization effect of oxidants and their targeted degradation capabilities; Where N is the total number of types of oxidizing agents; κ i Let be the reaction rate constant for the i-th oxidant; P represents the effective concentration of the oxidant. i P represents the actual distribution deviation of the i-th oxidant. max E represents the oxidant distribution value under ideal conditions. a η is the activation energy of the target pollutant; R is the universal gas constant; T is the reaction temperature; β is the free radical formation efficiency coefficient; η is the free radical formation efficiency coefficient. free For free radical utilization efficiency; ΔC int This represents the change in the concentration of the intermediate product; C tot The total pollutant concentration; δ side It is a byproduct inhibitor.

2. The method for treating wastewater using wet oxygen technology according to claim 1, characterized in that: A class of environmental judgment conditions is established based on primary factors. If the class of environmental judgment conditions are determined to be abnormal, transient active electrons are introduced into the wastewater through a pulsed plasma device. Primary factors include the distribution of excited energy levels of oxygen molecules and the saturation rate of free radical generation; One type of environmental condition is: if the oxygen molecule excitation energy level distribution is lower than the preset target energy level, and the free radical generation saturation rate is less than the preset free radical generation saturation rate threshold.

3. The method for treating wastewater using wet oxygen technology according to claim 2, characterized in that: The distribution of excited energy levels of oxygen molecules reflects the proportion of oxygen molecules from the ground state to the excited state, as well as the correlation between oxygen molecules and the energy input and temperature conditions of the reaction system; a comprehensive model describes the distribution of excited energy levels of oxygen molecules by quantifying the number density and excitation probability of excited oxygen particles. in The sum of the excited energy levels of oxygen molecules in the system; M is the total number of excited energy levels; N j f represents the number of oxygen molecules in the j-th energy level; j E is the excited-state distribution factor, which represents the proportion of oxygen molecules in the j-th energy level out of the total number of molecules; j γ is the energy value of the j-th energy level; j The excitation probability factor is used to reflect the probability that the j-th energy level will be excited. The free radical generation saturation rate describes how the number of free radicals generated per unit time approaches the upper limit of the generation capacity. The generation rate depends on the oxidant concentration, reaction pathway, and concentration of generated free radicals. The nonlinear dynamic characteristics of free radical generation are described by constructing a saturation term to correct the reaction rate. Where R free k is the saturation rate of free radical formation. gen C is the rate constant for free radical formation; prec C is the concentration of the precursor of the oxidant. free C represents the actual concentration of free radicals in the current system. sat This represents the upper limit of the saturation concentration for free radical generation.

4. The wet oxygenation wastewater treatment method according to claim 3, characterized in that: The plasma device instantaneously generates active electrons through pulsed discharge; these active electrons excite oxygen molecules through collisions or directly form free radicals; J is proposed. plasma The active electron flux generated by the plasma; via J plasma This describes the relationship between electron flux and electron density, electric field strength, and drift velocity. J plasma =e·n e ·v e ·E·Δt·V Where e is the charge of a single electron; n e The electron density per unit volume; v e Δt is the electron drift velocity; E is the electric field strength of the plasma; Δt is the time width of a single pulse; V is the volume of the wastewater treatment zone.

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