CN111977754A - Composite efficient reinforced remediation equipment for soil groundwater and water body organic pollution and application - Google Patents

Abstract

A composite efficient reinforced remediation device for soil, underground water and water organic pollution and an application thereof belong to the field of ecological environment protection. The technology is realized by the following steps: the frequency converter is adopted to convert the commercial alternating current, the singlechip is controlled to boost the frequency-converted alternating current into 1 to 1 ten thousand volts, ozone molecules are generated under the action of a high-voltage electric field, the ozone molecules and underground organic sewage or water body sewage or factory and domestic organic sewage pumped by the sewage delivery pump are sprayed by the jet pipe to carry out forced mass transfer mixing, chemical reaction is rapidly generated in the reactor, meanwhile, hydrogen peroxide is input through the infusion pump to accelerate the oxidation reaction of organic matters, organic matters in underground water or water body sewage are oxidized and decomposed into carbon dioxide and water, and harmful organisms in the underground water or sewage are simultaneously killed, so that the organic pollution of the underground water or water body is eliminated, no secondary pollution and no toxic or side effect exist, and the device can be used for eliminating and rapidly repairing organic pollutants in soil underground water and various factories and domestic sewage.

Description

Composite efficient reinforced remediation equipment for soil groundwater and water body organic pollution and application

Technical Field

The invention belongs to the technical field of ecological environment, and particularly relates to a composite efficient reinforced remediation device for soil groundwater and water body organic pollution and application thereof.

Background

The formations below the surface of the earth are complex, and the groundwater flows very slowly, so that the groundwater pollution has the characteristics of slow process, difficult discovery and difficult treatment. Once the groundwater is polluted, even if the pollution source is completely eliminated, the water quality can be restored for more than ten years or even several decades, and the problem is more complicated as the artificial groundwater aquifer needs to be updated.

Groundwater pollution is a phenomenon in which the quality of groundwater deteriorates due to human factors. The causes of groundwater pollution are mainly: industrial wastewater is directly discharged underground, contaminated surface water invades into underground aquifers, human and animal excreta or water contaminated by excessive use of pesticides permeates underground, and the like. As a result of the contamination, the contents of harmful components such as phenol, chromium, mercury, arsenic, radioactive substances, bacteria, organic substances, etc. in the groundwater are increased. The polluted underground water is harmful to human health and industrial and agricultural production.

The current common groundwater pollution treatment methods are as follows:

physical treatment method

The physical method is a method for treating polluted underground water by using a physical means, and can be summarized as follows:

first, a shielding method

The method is to establish various physical barriers underground to trap polluted water so as to prevent the further diffusion and spread of pollutants. The conventional mortar curtain method is to pour mortar into the ground by pressure to form a curtain around the polluted water body, thereby enclosing the polluted water body. Other physical barrier methods include mud-water barriers, vibro-pile barriers, sheet-pile barriers, block replacement, membrane and composite curtain containment, all of which are similar in principle to the mortar curtain method. Generally, the physical shielding method can be considered as a permanent sealing method only when treating a small range of extremely toxic and degradation-resistant pollutants, and is used as a temporary control method only in the early stage of groundwater pollution treatment in most cases.

② passive collection method

The method is a method of digging a trench deep enough downstream of the groundwater flow, disposing a collection system in the trench, and collecting the pollutants floating on the water surface, such as oil pollutants, or collecting all the polluted groundwater for disposal. Passive collection methods are generally effective in treating light contaminants (e.g., oils, etc.), and have been used extensively in the united states to treat groundwater oil contamination.

Hydrodynamic control method for groundwater pollution

The hydrodynamic control method is to artificially change the hydraulic gradient of underground water by pumping water or injecting water into an aquifer by using a well group system, thereby separating the polluted water body from the clean water body. The hydraulic control method can be divided into an upstream watershed method and a downstream watershed method according to different well group system arrangement modes. The upstream watershed method is that a row of water injection wells are arranged at the upstream of the polluted water body, and clear water is injected into a water-bearing layer through the water injection wells, so that an underground watershed is formed at the water injection wells, and the upstream clean water body is prevented from being supplied to the polluted water body downwards; meanwhile, a row of pumping wells are arranged at the downstream to pump out the polluted water body for treatment. The downstream watershed rule is that a row of water injection wells are arranged at the downstream of a polluted water body for water injection, a watershed is formed at the downstream to prevent the pollution plume from diffusing downstream, and a row of water pumping wells are arranged at the upstream to pump clean water and send the clean water to the downstream for injection. Also, the hydrodynamic control method is generally used as a temporary control method for preventing the diffusion and spread of pollutants at the beginning of groundwater pollution control.

Method for pumping and treating groundwater pollution

The objectives of the extraction and treatment system include hydraulic control of the contaminant plume and removal of the contaminants from the groundwater. The extraction treatment method is a method which is widely applied at present, can be selected according to the type of pollutants and the treatment cost, and can be roughly divided into three types:

Physical methods. The method comprises the following steps: adsorption, gravity separation, filtration, reverse osmosis, air blowing, and incineration.

② chemical method. The method comprises the following steps: coagulating sedimentation, redox, ion exchange, neutralization, and the like.

③ biological methods. The method comprises the following steps: an activated sludge method, a biofilm method, an anaerobic digestion method, a soil treatment method, and the like. The treatment method after pumping out the polluted ground water is the same as that of surface water, and it is pointed out that in the pumping out treatment of the polluted ground water, the establishment of a well group system is key, and the well group system can control the flow of the whole polluted water body. The treated underground water has two directions, one is directly used, and the other is used for recharging. The reason for much recharging is that on one hand, recharging can dilute the polluted water body and flush the aquifer; on the other hand, the circulating flow of the underground water can be accelerated, so that the restoring time of the underground water is shortened.

In situ treatment method for groundwater pollution

The in-situ treatment method is a hotspot of research on groundwater pollution treatment technology, not only is the treatment cost relatively saved, but also surface treatment facilities can be reduced, the exposure of pollutants is reduced to the greatest extent, the disturbance to the environment is reduced, and the method is a groundwater pollution treatment technology with a very promising prospect. In situ treatment techniques include physicochemical and biological treatment processes.

1. Physical chemical treatment method

Adding medicine. Chemical agents, such as a neutralizer, are poured into the polluted water body through the well group system to neutralize acidic or alkaline leachate, and an oxidant is added to degrade organic matters or to precipitate inorganic compounds.

② permeable treatment beds. The permeable treatment bed is mainly suitable for thinner and shallower aquifers and is generally used for harmless treatment of landfill leachate. The method comprises digging a ditch at the downstream of the polluted plume, digging the ditch to the basement rock layer or the impermeable clay layer at the bottom of the aquifer, filling a water-permeable medium capable of reacting with the pollutants in the ditch, and allowing the polluted underground water to flow into the ditch and then react with the medium to generate harmless products or sediments for removal. Commonly used filling media are: a. limestone, to neutralize acidic groundwater or remove heavy metals; b. activated carbon to remove non-polar contaminants and CCl4, benzene, etc.; c. zeolites and synthetic ion exchange resins for the removal of dissolved heavy metals and the like.

③ soil modification method. The clay in the soil is converted into the organoclay by injecting the surfactant and the organic modifying substance in situ through the injection well by utilizing the clay layer in the soil. The organic clay formed after modification can effectively adsorb organic pollutants in underground water.

And fourthly, a flushing method. For organic hydrocarbon pollution, air can be used for flushing, namely, the air is injected to the bottom of a polluted area, volatile components in the pollutant overflow along with the air in the rising process of the air, and then the gas is collected and treated by a gas collection system; steam flushing can also be adopted, and the steam can not only overflow volatile components, but also pyrolyze organic matters; alternatively, the mixture may be rinsed with alcohol. In theory, all hydrocarbon contaminants are removed as long as the entire contaminated area is flushed.

And RF discharge heating process. The pollutants are degraded by passing current. When the in-situ physicochemical method is used, attention needs to be paid to the problem of blockage, and particularly when heavy metals exist in groundwater, the physicochemical reaction is easy to generate precipitates, so that an aquifer is blocked, and the proceeding of a treatment process is influenced.

2. Biological treatment method

The principle of in situ bioremediation is actually the artificial enhancement of the natural biodegradation process. It is a natural biodegradation process of pollutants that is enhanced by taking artificial measures including adding oxygen and nutrients to stimulate the growth of in situ microorganisms. The general in situ bioremediation process is: the capacity of in-situ microorganism for degrading pollutants is determined through experimental study, then the oxygen demand and the nutrition ratio capable of promoting the growth of the microorganism to the maximum extent are determined, and finally the research result is applied to the reality. The various in situ bioremediation techniques used today are performed around various intensive measures, such as enhanced oxygen supply techniques, which are broadly described as follows:

The biological air impact technology. The technology is similar to the air blast technology in the in-situ physicochemical method, and air is injected into the bottom of the polluted area, but the difference is that the air supply amount of the biological air blast is smaller as long as the air supply amount for stimulating the growth of microorganisms can be achieved.

② a dissolved gas water oxygen supply technique. The technology developed by researchers of Virginia multiple process research institute can produce gas-dissolved water consisting of 2/3 gas and 1/3 water, and the diameter of the gas bubble can be as small as 55 μm. The gas-water mixture is injected into the polluted area, so that the transfer efficiency of oxygen can be greatly improved.

And thirdly, hydrogen peroxide oxygen supply technology. The technology is that hydrogen peroxide is injected into polluted underground water as an oxygen source, and the hydrogen peroxide is decomposed to generate oxygen for supplying microorganisms to grow. The hydrogen peroxide is often injected with a catalyst that controls the rate of decomposition of the hydrogen peroxide to match the rate of oxygen consumption by the microorganisms.

The technologies for enhancing nutrient supply include a permeable wall technology and the like. The technology is that a permeable wall is built in a polluted area perpendicular to the direction of underground water flow, water in the permeable wall is firstly pumped out, and then the water is refilled into the permeable wall after nutrients are added. At this time, the permeation wall added with the nutrient becomes a nutrient diffusion source, and a biological active area is formed at the downstream of the permeation wall, so that the biodegradation process is enhanced.

In addition, reinforcement measures can also be taken from the microbial point of view. The microorganism can be selectively cultured in surface facilities and then injected into a polluted area through an injection well, or commercial strains are directly introduced, so that the function of strengthening the biodegradation process can be achieved. In general, the specific process forms of in situ bioremediation technology are many, but the principle is not always artificial enhancement of natural biodegradation process. In general, in situ bioremediation is performed in conjunction with a well cluster system, i.e., a pumping well is used in conjunction with a water injection well to accelerate the flow of groundwater and the diffusion of oxygen and nutrients, thereby shortening the treatment time.

However, the method can overcome the defects that the method can completely oxidize and decompose organic pollutants in underground water or water into carbon dioxide and water by adopting a composite high-efficiency ozone-hydrogen peroxide oxidation method, and is the most environment-friendly method at present.

Disclosure of Invention

The purpose of the invention is as follows: aiming at the technical defects, the invention provides a manufacturing method of a composite high-efficiency reinforced remediation device for soil groundwater and water body organic pollution, which is used for quickly eliminating organic pollutants in soil groundwater, polluted water bodies, factory and domestic sewage, oil field wastewater, chemical wastewater, aquaculture wastewater and domestic wastewater, and simultaneously quickly eliminating harmful organisms in the sewage to protect the ecological environment of the water body.

The technical scheme is as follows: a composite efficient reinforced remediation device for soil groundwater and water organic pollution and application thereof are disclosed, comprising the following steps: a. a square cabinet body with the length of 150-400cm, the width of 50-150cm and the height of 150-200cm is respectively provided with a power distribution cabinet, a frequency converter, a single chip microcomputer controller, an adjustable step-up transformer, an air drying filter, an air compressor, a high-pressure liquid delivery pump, a sewage delivery pump, a stirrer, a reactor, a jet pipe, a hydrogen peroxide delivery pump, 4-10 pairs of corrosion-resistant high-pressure electrode plates, 1-10 insulating medium plates and the like arranged between electrodes, and all the components are connected and fixed with the cabinet body. Switching on a power supply, carrying out frequency conversion according to needs, then adjusting the output voltage of a step-up transformer, applying high voltage to an electrode to generate high-voltage glow discharge, ionizing input compressed air to generate ozone molecules, under the impact of the compressed air pressure, enabling the ozone molecules to enter a reactor to be in opposite jet mixing with soil underground water or water body sewage pumped by a high-voltage liquid delivery pump through two rows of opposite jet pipes, carrying out chemical reaction in the reactor, simultaneously starting a hydrogen peroxide delivery pump to pump hydrogen peroxide into the reactor, starting a stirrer to carry out forced mass transfer and mixing, and oxidizing organic matters by the ozone and the hydrogen peroxide rapidly Decomposition into CO₂And H₂O, changing ozone into oxygen, changing hydrogen peroxide into water and oxygen, pumping out the oxygen from the reactor through a delivery pump, or refluxing the oxygen to soil groundwater or water; b. in the device a, a square cabinet body is made of metal or alloy, an insulated conductor is made of quartz/ceramic/glass/granite/feldspar and the like, 4-10 electrode plates can be metal/high-strength alloy/carbon blocks and the like, a power supply is connected, the frequency is converted to be 300 plus material of 1500HZ through a frequency converter, a step-up transformer is adjusted, high voltage (3000 plus material 9000V) is output to two opposite electrodes, glow discharge is generated, compressed air is ionized to generate ozone, then a sewage water inlet pump is started, sewage flows through two rows of opposite jet pipes to be oppositely jetted, and water containing organic pollutants and ozone molecules are mixed forcibly; simultaneously starting a hydrogen peroxide pump, inputting hydrogen peroxide into the reactor, strengthening the oxidation of ozone molecules, carrying out strong oxidation-reduction reaction of ozone, hydrogen peroxide and organic matters in the reactor, quickly carrying out oxidation decomposition on the organic matters, killing harmful microorganisms, keeping different reaction time according to the type and concentration of organic pollutants in underground water or water, regularly pumping out water after reaction, and refluxing the water to the underground water or the water for continuous circulation; c. in the treatment process b, the underground water or the water body organic sewage is automatically fed by a water inlet pump, the automatic or manual control is carried out according to the liquid level position and the reaction time of ozone, hydrogen peroxide and organic substances, the frequency converter and the single chip microcomputer controller are regulated, the output voltage and the frequency of the adjustable step-up transformer can be regulated, so that the discharge intensity and the discharge efficiency of the electrode are controlled, the speed and the quality of ozone generation are controlled, the reaction process and the speed of the ozone, the hydrogen peroxide and the organic pollutants in the reactor are controlled, and the quantity of the hydrogen peroxide entering the reactor is controlled according to different types and concentrations of organic substances; d. after the treatment of the soil underground water or the organic sewage in the water body is finished, most organic pollutants in the water are thoroughly oxidized and decomposed into CO ₂And H₂O; almost has no secondary pollution, and can quickly restore the soil groundwater and various water pollutions.

The composite efficient reinforced restoration equipment for soil groundwater and water body organic pollution is applied to organic pollution prevention and control and restoration of soil groundwater, river water, lake water, well water, factory wastewater, chemical wastewater, oil field wastewater, farm wastewater and domestic sewage.

Has the advantages that: the invention can efficiently and quickly remove organic pollutants and harmful microorganisms in soil underground water and water or factory and domestic sewage to the maximum extent, repair the soil underground water, the water and various factory and domestic organisms, ensure the human health and maintain the ecological environment safety of soil and water.

Compared with the prior art, the invention has the advantages that:

1) the invention adopts the technology of mixing ozone and hydrogen peroxide for strengthening oxidation of ozone, underground sewage and water body sewage, wherein the ozone is generated by high-voltage glow discharge of electrodes caused by the output of high voltage of a frequency converter and an adjustable step-up transformer, and the technology is simple and convenient, simple and feasible, strong in operability, low in cost and strong in practicability;

2) the invention adopts the ozone-hydrogen peroxide enhanced oxidation technology, can simultaneously eliminate harmful organic chemical substances and harmful organisms in soil underground water, water body water and various organic sewage, reduces the input of harmful chemicals, and reduces the harmful substance residue after underground water and sewage treatment.

Drawings

Fig. 1 shows the effect of the device.

Detailed Description

The invention is further described below with reference to examples:

example 1:

1. a square cabinet body with the length of 150cm, the width of 50cm and the height of 150cm, which is respectively provided with a power distribution cabinet, a frequency converter, a single chip microcomputer controller, an adjustable step-up transformer, an air drying filter, an air compressor, a high-pressure liquid delivery pump, a sewage delivery pump, a stirrer, a reactor,1 insulating medium plate and the like are arranged between the jet pipe, the hydrogen peroxide delivery pump and 4 pairs of corrosion-resistant high-voltage electrode plates and electrodes, and all the parts are fixedly connected with the cabinet body. Switching on a power supply, carrying out frequency conversion according to needs, then adjusting the output voltage of a step-up transformer, applying high voltage to an electrode to generate high-voltage glow discharge, ionizing input compressed air to generate ozone molecules, under the impact of the compressed air pressure, enabling the ozone molecules to enter a reactor and be mixed with soil underground water or water body sewage pumped by a high-voltage liquid delivery pump through two rows of opposite jet pipes in a correlation mode, carrying out chemical reaction in the reactor, simultaneously starting a hydrogen peroxide delivery pump to pump hydrogen peroxide into the reactor, starting a stirrer to carry out forced mass transfer and mixing, and carrying out oxidation decomposition on organic matters into CO by using the ozone and the hydrogen peroxide rapidly ₂And H₂O, changing ozone into oxygen, changing hydrogen peroxide into water and oxygen, pumping out the oxygen from the reactor through a delivery pump, or refluxing the oxygen to soil groundwater or water;

2. in the device 1, a square cabinet body is made of metal or alloy, an insulated conductor is made of quartz/ceramic/glass/granite/feldspar and the like, 4 electrode plates can be metal/high-strength alloy/carbon blocks and the like, a power supply is connected, the frequency is changed to 1500HZ through a frequency converter, a step-up transformer is adjusted, high voltage (9000V) is output to two opposite electrodes, glow discharge is generated, compressed air is ionized, ozone is generated, then a sewage water inlet pump is started, sewage flows through two rows of opposite jet pipes to be jetted with each other, and water containing organic pollutants and ozone molecules are mixed forcibly; simultaneously starting a hydrogen peroxide pump, inputting hydrogen peroxide into the reactor, strengthening the oxidation of ozone molecules, carrying out strong oxidation-reduction reaction of ozone, hydrogen peroxide and organic matters in the reactor, quickly carrying out oxidation decomposition on the organic matters, killing harmful microorganisms, keeping different reaction time according to the type and concentration of organic pollutants in underground water or water, regularly pumping out water after reaction, and refluxing the water to the underground water or the water for continuous circulation;

3. In the treatment process 2, the underground water or the water body organic sewage is automatically fed by the water inlet pump, the automatic or manual control is carried out according to the liquid level position and the reaction time of ozone, hydrogen peroxide and organic substances, the frequency converter and the single chip microcomputer controller are adjusted, the output voltage and the frequency of the adjustable step-up transformer can be adjusted, so that the discharge intensity and the discharge efficiency of the electrode are controlled, the speed and the quality of ozone generation are controlled, the reaction process and the speed of ozone, hydrogen peroxide and organic pollutants in the reactor are controlled, and the quantity of hydrogen peroxide entering the reactor is controlled according to different types and concentrations of organic substances;

4. after the treatment of the soil underground water or the organic sewage in the water body is finished, most organic pollutants in the water are thoroughly oxidized and decomposed into CO₂And H₂O; almost has no secondary pollution, and can quickly restore the soil groundwater and various water pollutions. The method and the equipment are applied to the organic pollution prevention, control and restoration of soil groundwater, river water, lake water, well water, factory wastewater, chemical wastewater, oil field wastewater, farm wastewater and domestic sewage.

Example 2:

1. a square cabinet body with the length of 200cm, the width of 100cm and the height of 180cm is respectively provided with a power distribution cabinet, a frequency converter, a single chip microcomputer controller, an adjustable step-up transformer, an air drying filter, an air compressor, a high-pressure liquid delivery pump, a sewage delivery pump, a stirrer, a reactor, a jet pipe, a hydrogen peroxide delivery pump, 6 pairs of corrosion-resistant high-voltage electrode plates, 3 insulating medium plates and the like which are arranged between the electrodes, and all the components are connected and fixed with the cabinet body. Switching on a power supply, carrying out frequency conversion according to needs, then adjusting the output voltage of a step-up transformer, applying high voltage to an electrode to generate high-voltage glow discharge, ionizing input compressed air to generate ozone molecules, under the impact of the compressed air pressure, enabling the ozone molecules to enter a reactor and be mixed with soil underground water or water body sewage pumped by a high-voltage liquid delivery pump through two rows of opposite jet pipes in a correlation mode, carrying out chemical reaction in the reactor, simultaneously starting a hydrogen peroxide delivery pump to pump hydrogen peroxide into the reactor, starting a stirrer to carry out forced mass transfer and mixing, and carrying out oxidation decomposition on organic matters into CO by using the ozone and the hydrogen peroxide rapidly ₂And H₂O, ozone is changed into oxygen, hydrogen peroxide is changed into water and oxygen, and the water and oxygen are pumped out of the reactor through a delivery pump or flow back to soil underground water or flow back to a water body；

2. In the device 1, a square cabinet body is made of metal or alloy, an insulated conductor is made of quartz/ceramic/glass/granite/feldspar and the like, 6 electrode plates can be metal/high-strength alloy/carbon blocks and the like, a power supply is connected, the frequency is changed to 900HZ through a frequency converter, a step-up transformer is adjusted, high voltage (5000V) is output to two opposite electrodes, glow discharge is generated, compressed air is ionized, ozone is generated, then a sewage water inlet pump is started, sewage flows through two rows of opposite jet pipes to be jetted with each other, and water containing organic pollutants is forcibly mixed with ozone molecules; simultaneously starting a hydrogen peroxide pump, inputting hydrogen peroxide into the reactor, strengthening the oxidation of ozone molecules, carrying out strong oxidation-reduction reaction of ozone, hydrogen peroxide and organic matters in the reactor, quickly carrying out oxidation decomposition on the organic matters, killing harmful microorganisms, keeping different reaction time according to the type and concentration of organic pollutants in underground water or water, regularly pumping out water after reaction, and refluxing the water to the underground water or the water for continuous circulation;

3. In the treatment process 2, the underground water or the water body organic sewage is automatically fed by the water inlet pump, the automatic or manual control is carried out according to the liquid level position and the reaction time of ozone, hydrogen peroxide and organic substances, the frequency converter and the single chip microcomputer controller are adjusted, the output voltage and the frequency of the adjustable step-up transformer can be adjusted, so that the discharge intensity and the discharge efficiency of the electrode are controlled, the speed and the quality of ozone generation are controlled, the reaction process and the speed of ozone, hydrogen peroxide and organic pollutants in the reactor are controlled, and the quantity of hydrogen peroxide entering the reactor is controlled according to different types and concentrations of organic substances;

4. after the treatment of the soil underground water or the organic sewage in the water body is finished, most organic pollutants in the water are thoroughly oxidized and decomposed into CO₂And H₂O; almost has no secondary pollution, and can quickly restore the soil groundwater and various water pollutions. The method and the equipment are applied to the organic pollution prevention, control and restoration of soil groundwater, river water, lake water, well water, factory wastewater, chemical wastewater, oil field wastewater, farm wastewater and domestic sewage.

Example 3

1. A square cabinet body with the length of 400cm, the width of 150cm and the height of 200cm is respectively provided with a power distribution cabinet, a frequency converter, a single chip microcomputer controller, an adjustable step-up transformer, an air drying filter, an air compressor, a high-pressure liquid delivery pump, a sewage delivery pump, a stirrer, a reactor, a jet pipe, a hydrogen peroxide delivery pump, 10 pairs of corrosion-resistant high-voltage electrode plates, 10 insulating medium plates and the like, wherein all the parts are fixedly connected with the cabinet body. Switching on a power supply, carrying out frequency conversion according to needs, then adjusting the output voltage of a step-up transformer, applying high voltage to an electrode to generate high-voltage glow discharge, ionizing input compressed air to generate ozone molecules, under the impact of the compressed air pressure, enabling the ozone molecules to enter a reactor and be mixed with soil underground water or water body sewage pumped by a high-voltage liquid delivery pump through two rows of opposite jet pipes in a correlation mode, carrying out chemical reaction in the reactor, simultaneously starting a hydrogen peroxide delivery pump to pump hydrogen peroxide into the reactor, starting a stirrer to carry out forced mass transfer and mixing, and carrying out oxidation decomposition on organic matters into CO by using the ozone and the hydrogen peroxide rapidly ₂And H₂O, changing ozone into oxygen, changing hydrogen peroxide into water and oxygen, pumping out the oxygen from the reactor through a delivery pump, or refluxing the oxygen to soil groundwater or water;

2. in the device 1, a square cabinet body is made of metal or alloy, an insulated conductor is made of quartz/ceramic/glass/granite/feldspar and the like, 10 electrode plates can be metal/high-strength alloy/carbon blocks and the like, a power supply is connected, the frequency is converted to 500HZ through a frequency converter, a step-up transformer is adjusted, high voltage (3000V) is output to two opposite electrodes, glow discharge is generated, compressed air is ionized, ozone is generated, then a sewage water inlet pump is started, sewage flows through two rows of opposite jet pipes to be jetted with each other, and water containing organic pollutants is forcibly mixed with ozone molecules; simultaneously starting a hydrogen peroxide pump, inputting hydrogen peroxide into the reactor, strengthening the oxidation of ozone molecules, carrying out strong oxidation-reduction reaction of ozone, hydrogen peroxide and organic matters in the reactor, quickly carrying out oxidation decomposition on the organic matters, killing harmful microorganisms, keeping different reaction time according to the type and concentration of organic pollutants in underground water or water, regularly pumping out water after reaction, and refluxing the water to the underground water or the water for continuous circulation;

3. In the treatment process 2, the underground water or the water body organic sewage is automatically fed by the water inlet pump, the automatic or manual control is carried out according to the liquid level position and the reaction time of ozone, hydrogen peroxide and organic substances, the frequency converter and the single chip microcomputer controller are adjusted, the output voltage and the frequency of the adjustable step-up transformer can be adjusted, so that the discharge intensity and the discharge efficiency of the electrode are controlled, the speed and the quality of ozone generation are controlled, the reaction process and the speed of ozone, hydrogen peroxide and organic pollutants in the reactor are controlled, and the quantity of hydrogen peroxide entering the reactor is controlled according to different types and concentrations of organic substances;

4. after the treatment of the soil underground water or the organic sewage in the water body is finished, most organic pollutants in the water are thoroughly oxidized and decomposed into CO₂And H₂O; almost has no secondary pollution, and can quickly restore the soil groundwater and various water pollutions. The method and the equipment are applied to the organic pollution prevention, control and restoration of soil groundwater, river water, lake water, well water, factory wastewater, chemical wastewater, oil field wastewater, farm wastewater and domestic sewage.

Application examples of the invention:

the technology of the invention is applied to the organic pollution treatment of the polluted soil and the underground water.

1. Referring to example 1, the treatment of the soil groundwater contaminated with organic pollutants phenol, hexachloro-cyclohexane, parathion and pyrethrin by the technology reduces the residual phenol d in the soil by 92.9%, hexachloro-cyclohexane by 83.5%, parathion by 95.9% and pyrethrin by 94.9% compared with the control soil without the technology (fig. 1);

2. referring to example 2, the method is adopted to treat the soil underground water polluted by organic pollutants of phenol, hexachloro-cyclohexane, parathion and pyrethrin, and after treatment, compared with the control soil without the method, the residual phenol d in the soil is reduced by 94.3 percent, hexachloro-cyclohexane is reduced by 84.5 percent, parathion is reduced by 93.2 percent, and the pyrethrin is reduced by 91.7 percent;

3. referring to example 3, the treatment of the soil groundwater contaminated with organic pollutants phenol, hexachloro-cyclohexane, parathion and pyrethrin by the present technology reduced the residual phenol d in the soil by 89.3%, hexachloro-cyclohexane by 85.2%, parathion by 96.5% and pyrethrin by 96.3% compared with the control soil without the present technology.

Claims (6)

1. A composite efficient reinforced remediation device for soil groundwater and water organic pollution and application thereof are characterized by comprising the following steps:

a. A square cabinet body with the length of 150-400cm, the width of 50-150cm and the height of 150-200cm is respectively provided with a power distribution cabinet, a frequency converter, a single chip microcomputer controller, an adjustable step-up transformer, an air drying filter, an air compressor, a high-pressure liquid delivery pump, a sewage delivery pump, a stirrer, a reactor, a jet pipe, a hydrogen peroxide delivery pump, 4-10 pairs of corrosion-resistant high-pressure electrode plates, 1-10 insulating medium plates and the like arranged between electrodes, and all the components are connected and fixed with the cabinet body. Switching on a power supply, carrying out frequency conversion according to needs, then adjusting the output voltage of a step-up transformer, applying high voltage to an electrode to generate high-voltage glow discharge, ionizing input compressed air to generate ozone molecules, under the impact of the compressed air pressure, enabling the ozone molecules to enter a reactor and be mixed with soil underground water or water body sewage pumped by a high-voltage liquid delivery pump through two rows of opposite jet pipes in a correlation mode, carrying out chemical reaction in the reactor, simultaneously starting a hydrogen peroxide delivery pump to pump hydrogen peroxide into the reactor, starting a stirrer to carry out forced mass transfer and mixing, and carrying out oxidation decomposition on organic matters into CO by using the ozone and the hydrogen peroxide rapidly₂And H₂O, changing ozone into oxygen, changing hydrogen peroxide into water and oxygen, pumping out the oxygen from the reactor through a delivery pump, or refluxing the oxygen to soil groundwater or water;

b. In the device a, a square cabinet body is made of metal or alloy, an insulated conductor is made of quartz/ceramic/glass/granite/feldspar and the like, 4-10 electrode plates can be metal/high-strength alloy/carbon blocks and the like, a power supply is connected, the frequency is converted to be 300 plus material of 1500HZ through a frequency converter, a step-up transformer is adjusted, high voltage (3000 plus material 9000V) is output to two opposite electrodes, glow discharge is generated, compressed air is ionized to generate ozone, then a sewage water inlet pump is started, sewage flows through two rows of opposite jet pipes to be oppositely jetted, and water containing organic pollutants and ozone molecules are mixed forcibly; simultaneously starting a hydrogen peroxide pump, inputting hydrogen peroxide into the reactor, strengthening the oxidation of ozone molecules, carrying out strong oxidation-reduction reaction of ozone, hydrogen peroxide and organic matters in the reactor, quickly carrying out oxidation decomposition on the organic matters, killing harmful microorganisms, keeping different reaction time according to the type and concentration of organic pollutants in underground water or water, regularly pumping out water after reaction, and refluxing the water to the underground water or the water for continuous circulation;

c. in the treatment process b, the underground water or the water body organic sewage is automatically fed by a water inlet pump, the automatic or manual control is carried out according to the liquid level position and the reaction time of ozone, hydrogen peroxide and organic substances, the frequency converter and the single chip microcomputer controller are regulated, the output voltage and the frequency of the adjustable step-up transformer can be regulated, so that the discharge intensity and the discharge efficiency of the electrode are controlled, the speed and the quality of ozone generation are controlled, the reaction process and the speed of the ozone, the hydrogen peroxide and the organic pollutants in the reactor are controlled, and the quantity of the hydrogen peroxide entering the reactor is controlled according to different types and concentrations of organic substances;

d. After the treatment of the soil underground water or the organic sewage in the water body is finished, most organic pollutants in the water are thoroughly oxidized and decomposed into CO₂And H₂O; almost has no secondary pollution, and can quickly restore the soil groundwater and various water pollutions.

2. The composite efficient reinforced remediation equipment for organic pollution of soil, underground water and water bodies according to claim 1, wherein the square cabinet body is made of metal/corrosion-resistant alloy, and the cabinet body is protected from grounding well in actual use.

3. The device for the composite high-efficiency reinforced remediation of organic pollution of soil, underground water and water bodies according to claim 1, wherein a power distribution cabinet, a frequency converter, a single chip microcomputer controller, an adjustable step-up transformer, an electrode plate, an insulating medium plate, an air drying filter, a compressed air pump, a reactor, a stirrer, a hydrogen peroxide delivery pump, an automatic control high-pressure water pump, various connecting pipelines and the like are installed in the cabinet body.

4. The apparatus according to claim 1, wherein 4 to 10 pairs of high-voltage corrosion-resistant electrode plates are installed in the cabinet, and have different areas and thicknesses according to requirements, after high-voltage glow discharge, the upper portion of the high-voltage glow discharge is connected with the air outlet pipe of the compressed air machine, when the compressed air flows through the electrode gap and the insulated conductor, the compressed air is ionized to generate ozone molecules, and the ozone molecules and the hydrogen peroxide molecules are forced to transfer and mix by utilizing the power of the compressed air, flow downwards through the water flow jetted by the two rows of jet pipes of the sewage high-pressure water pump in opposite directions, and simultaneously the hydrogen peroxide conveying pump adds the hydrogen peroxide into the reactor, and under the stirring of the stirrer in the reactor, the ozone, the hydrogen peroxide and various organic substances are forced to transfer and mix, and the ozone molecules and the hydrogen peroxide molecules are simultaneously in full contact with and react with the ₂And H₂O。

5. The apparatus according to claim 1, wherein the ozone generated by the apparatus, together with the added hydrogen peroxide, enhances the redox reaction, and can rapidly degrade organic substances in the soil, underground water and water body sewage in a short time, kill pathogenic bacteria in the underground water or polluted water, and repair and purify the underground water and water environment.

6. The application of the composite efficient reinforced remediation equipment for organic pollution of soil groundwater and water (sewage) according to any one of claims 1 to 5 in organic pollution prevention, control and remediation of soil groundwater, river water, lake water, well water, factory wastewater, chemical wastewater, oil field wastewater, farm wastewater and domestic sewage.

Images