阅读说明：本技术 带光氧化的污水溶氧射流器及其污水处理方法 (Sewage dissolved oxygen ejector with photooxidation and sewage treatment method thereof ) 是由 马国建 史凤华 李志静 魏川铖 刘文芳 刘倩平 顾欣 鲁陈林 丁学姣 于 2021-07-08 设计创作，主要内容包括：本发明涉及一种带光氧化的污水溶氧射流器,包括引水管路,引水管路上设有使管内污水流速增大的喇叭口结构,所述喇叭口结构通过微孔管与射流器喷枪连接,所述微孔管设置在混合室内,混合室与光氧化气体注入装置连接,光氧化气体注入混合室后通过微孔管进入射流器喷枪,完成气体与污水的混合,然后由射流器喷枪以高速打入水体,实现与污水之间的氧化还原反应。本发明可用于各种生活污水、工业污水的处理,尤其一些高浓度难降解的有机废水的处理,以及池塘、水产养殖水池、景观水池等场所的深度净化,兼顾充氧、射流搅拌、高能量氧化等功能。(The invention relates to a sewage dissolved oxygen ejector with photooxidation, which comprises a water guide pipeline, wherein a bell mouth structure which can increase the flow speed of sewage in the pipeline is arranged on the water guide pipeline, the bell mouth structure is connected with an ejector spray gun through a microporous pipe, the microporous pipe is arranged in a mixing chamber, the mixing chamber is connected with a photooxidation gas injection device, photooxidation gas enters the ejector spray gun through the microporous pipe after being injected into the mixing chamber, the gas and sewage are mixed, and then the photooxidation gas is injected into a water body through the ejector spray gun at a high speed, so that the redox reaction between the photooxidation gas and the sewage is realized. The invention can be used for treating various domestic sewage and industrial sewage, in particular to the treatment of high-concentration organic wastewater which is difficult to degrade, and the deep purification of ponds, aquaculture ponds, landscape ponds and other places, and has the functions of oxygenation, jet stirring, high-energy oxidation and the like.)

1. The utility model provides a take sewage dissolved oxygen ejector of photooxidation, includes the inlet pipe way, its characterized in that, is equipped with horn mouth structure (4) that makes the interior sewage velocity of flow increase of pipe on the inlet pipe way, horn mouth structure (4) are connected with ejector spray gun (16) through micropore pipe (15), micropore pipe (15) set up in mixing chamber (14), and mixing chamber (14) are connected with the light oxidation gas injection device, get into ejector spray gun (16) through micropore pipe (15) after the light oxidation gas injection mixing chamber (14), accomplish the mixture of gas and sewage, then throw into the water with high speed by ejector spray gun (16), realize and the redox reaction between the sewage.

2. The sewage dissolved oxygen ejector with photooxidation function according to claim 1, wherein the photooxidation gas injection device comprises a positive electrode (8) and a negative electrode (9) which are connected with a high-voltage pulse power supply (5), a negative oxygen-based generator (10) is fixed on the negative electrode (9), after the high-voltage pulse power supply (5) is started, a strong corona is formed between the negative oxygen-based generator (10) and the positive electrode (8), air is introduced into a space between the negative oxygen-based generator (10) and the positive electrode (8) through a fan (12), and then the air is injected into the mixing chamber (14) through an air outlet (13).

3. The sewage dissolved oxygen ejector with photooxidation according to claim 2, characterized in that the number of the negative oxygen-based generators (10) is a grouping array arrangement structure; the positive electrode (8), the negative electrode (9) and the negative oxygen-based generator (10) are made of metal materials.

4. The photooxidized sewage dissolved oxygen jet device according to claim 3, wherein the number of the negative oxygen-based generators (10) is 72, and the negative oxygen-based generators are divided into two groups, and each group is arranged in 6 rows and 6 columns.

5. The photooxidized sewage dissolved oxygen ejector according to claim 1, wherein the ejector lance (16) is of a segmented structure, and the pipe diameter of each segment is gradually reduced along the ejection direction.

6. The sewage dissolved oxygen ejector with photooxidation as claimed in claim 5, wherein the ejector spray gun is divided into four sections, and the pipe diameters are 100mm, 50mm, 25mm and 10mm in sequence.

7. The sewage dissolved oxygen ejector with photooxidation according to claim 1, characterized in that the microporous pipe (15) is provided with a plurality of micropores, and the pore size is 1 mm.

8. A method for sewage treatment using the sewage dissolved oxygen ejector with photooxidation according to any one of claims 1 to 7, which comprises:

the water to be treated flows through the water diversion pipeline, the flow velocity in the pipeline is increased sharply under the action of the bell mouth, and a certain negative pressure is formed in the mixing chamber when the water passes through the microporous pipe;

under the action of a fan, air enters the space inside the photo-oxidation gas injection device, strong corona is formed between a negative oxygen radical generator and a positive electrode of the photo-oxidation gas injection device through high-voltage pulse, under the action of the corona, oxygen in the air is converted into oxygen atoms, hydroxyl groups, ozone and ions by electrons on the negative oxygen radical generator, a large number of free electrons are generated at the same time, water molecules in the air are converted into hydrogen atoms and hydroxyl groups, nitrogen in the air is converted into nitrogen atoms, and a large number of free electrons are generated at the same time, the free electrons have high energy and can cause neutral molecules or atoms to generate elastic collision and inelastic collision, and the inelastic collision can promote the neutral molecules or atoms to further generate electrons and ions;

air carrying a large amount of oxygen atoms, nitrogen atoms, hydrogen atoms, ozone, hydroxyl, free electrons and ions is introduced into the mixing chamber through the fan and enters the jet device spray gun through the microporous pipe to complete the mixing of the air and the water in the pipe;

the tail end of the jet gun of the jet device jets the gas-water mixture into the water body at a high speed to effectively stir the water body, so that the gas-water mixture is fully mixed with the water body and an oxidation reduction reaction is generated.

Technical Field

The invention relates to a sewage treatment technology, in particular to a sewage dissolved oxygen ejector with photooxidation and a sewage treatment method thereof.

Background

The high-concentration organic wastewater difficult to degrade comprises high-salt wastewater, landfill leachate, pharmaceutical wastewater and the like.

The high-salt wastewater has high salt concentration and high osmotic pressure, and microbial cell dehydration causes cell plasma separation, so that the microorganisms are dehydrated and die, and therefore, the biochemical treatment method is difficult to play a role in the treatment of the high-salt wastewater.

The landfill leachate wastewater has the characteristics of complex water quality, large water quality change and the like, the expected effect is difficult to achieve by adopting a single biochemical treatment technology, and advanced oxidation methods such as an ozone oxidation method, a Fenton oxidation method and the like are often adopted. The operation cost is very high, secondary pollution can be generated, the danger is high, and the requirement on the skill of field operators is very high.

The pharmaceutical wastewater, especially the wastewater containing antibiotics, is difficult to survive in the wastewater due to the sterilization effect of the drugs, and the biochemical treatment method is difficult to play a role in the wastewater containing antibiotics.

In ponds, aquaculture ponds, landscape ponds and other places, the water amount is often less and less due to the evaporation effect if water cannot be supplemented regularly. Causing the concentration of pollutants in the water body to be larger and larger, and influencing the growth of aquatic organisms. At present, aeration machines are required to be arranged for aeration in places such as ponds, aquaculture ponds, landscape ponds and the like for oxygenation, and the functions of sterilization and disinfection are not achieved.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a sewage dissolved oxygen jet device with photooxidation and a sewage treatment method thereof, which can be used for treating various industrial sewage and domestic sewage and have the functions of oxygenation, jet stirring, high-energy oxidation and the like.

The technical scheme of the invention is as follows: the utility model provides a take sewage dissolved oxygen ejector of photooxidation, includes the inlet pipe way, is equipped with the horn mouth structure that makes the intraductal sewage velocity of flow increase on the inlet pipe way, the horn mouth structure passes through the micropore pipe and is connected with the ejector spray gun, the micropore pipe sets up in the mixing chamber, and the mixing chamber is connected with photooxidation gas injection device, gets into the ejector spray gun through the micropore pipe after photooxidation gas pours into the mixing chamber into, accomplishes the mixture of gas and sewage, then squeezes into the water at a high speed by the ejector spray gun, realizes and the redox reaction between the sewage.

Further, the sewage dissolved oxygen jet device with photo-oxidation comprises a positive electrode and a negative electrode which are connected with a high-voltage pulse power supply, wherein a negative oxygen-based generator is fixed on the negative electrode, after the high-voltage pulse power supply is started, a strong corona is formed between the negative oxygen-based generator and the positive electrode, and air is introduced into a space between the negative oxygen-based generator and the positive electrode through a fan and then is injected into the mixing chamber through an air outlet.

Further, the sewage dissolved oxygen ejector with photooxidation is characterized in that the number of the negative oxygen-based generators is a plurality, and the negative oxygen-based generators are in a grouped array arrangement structure; the positive electrode, the negative electrode and the negative oxygen-based generator are made of metal materials.

Specifically, the number of the negative oxygen generators is 72, and the negative oxygen generators are divided into two groups, and each group is arranged in 6 rows and 6 columns.

Further, the sewage dissolved oxygen ejector with photooxidation is characterized in that the ejector gun of the ejector is of a sectional structure, and the pipe diameter of each section is gradually reduced along the ejection direction.

Particularly, the ejector spray gun is divided into four sections, and the pipe diameters are 100mm, 50mm, 25mm and 10mm in sequence.

Further, the sewage dissolved oxygen ejector with photooxidation is characterized in that the micropore pipe is provided with a plurality of micropores, and the pore diameter is about 1 mm.

A method for treating sewage by adopting the sewage dissolved oxygen ejector with photooxidation comprises the following steps:

the water to be treated flows through the water diversion pipeline, the flow velocity in the pipeline is increased sharply under the action of the bell mouth, and a certain negative pressure is formed in the mixing chamber when the water passes through the microporous pipe;

under the action of a fan, air enters the space inside the photo-oxidation gas injection device, strong corona is formed between a negative oxygen radical generator and a positive electrode of the photo-oxidation gas injection device through high-voltage pulse, under the action of the corona, oxygen in the air is converted into oxygen atoms, hydroxyl groups, ozone and ions by electrons on the negative oxygen radical generator, a large number of free electrons are generated at the same time, water molecules in the air are converted into hydrogen atoms and hydroxyl groups, nitrogen in the air is converted into nitrogen atoms, and a large number of free electrons are generated at the same time, the free electrons have high energy and can cause neutral molecules or atoms to generate elastic collision and inelastic collision, and the inelastic collision can promote the neutral molecules or atoms to further generate electrons and ions;

air carrying a large amount of oxygen atoms, nitrogen atoms, hydrogen atoms, ozone, hydroxyl, free electrons and ions is introduced into the mixing chamber through the fan and enters the jet device spray gun through the microporous pipe to complete the mixing of the air and the water in the pipe;

the tail end of the jet gun of the jet device jets the gas-water mixture into the water body at a high speed to effectively stir the water body, so that the gas-water mixture is fully mixed with the water body and an oxidation reduction reaction is generated.

The invention has the following beneficial effects: the sewage dissolved oxygen jet device with the photooxidation provided by the invention can be used for treating various domestic sewage and industrial sewage, especially for treating high-concentration refractory organic wastewater and deeply purifying ponds, aquaculture ponds, landscape ponds and other places, and has the functions of oxygenation, jet stirring, high-energy oxidation and the like. The defects of high operating cost, secondary pollution, high danger, high skill requirement on field operators and the like in the process of treating high-concentration refractory wastewater by an advanced oxidation method are avoided; the defect that the oxygenation process of ponds, aquaculture ponds, landscape ponds and other places does not have the sterilization and disinfection functions is avoided.

Drawings

FIG. 1 is a schematic view of a sewage dissolved oxygen ejector with photooxidation in an embodiment of the present invention.

The device comprises a water pump 1, a water inlet pipe 2, a water outlet pipe 3, a bell mouth 4, a high-voltage pulse power supply 5, a shutter 6, a shutter 7, a cable 8, a positive electrode 9, a negative electrode 10, a negative oxygen-based generator 11, a ventilation pipeline 12, a fan 13, an air outlet 14, a mixing chamber 15, micropores 16 and an ejector spray gun.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invention provides a sewage dissolved oxygen jet device with photooxidation, which can be used for treating various industrial sewage and domestic sewage, such as sewage treatment stations of nuclear power plants, small sewage treatment rooms and the like, particularly for treating high-concentration refractory organic wastewater and deeply purifying ponds, aquaculture ponds, landscape ponds and other places.

As shown in fig. 1, the sewage dissolved oxygen ejector with photooxidation comprises a water inlet pipe 2, a water outlet pipe 3 and a water guide pump 1 arranged in the middle of the water inlet pipe, wherein a horn mouth 4 for increasing the flow velocity of sewage in the pipe is arranged on the water outlet pipe 3, the horn mouth 4 is connected with an ejector spray gun 16 through a microporous pipe 15, the microporous pipe 15 is arranged in a mixing chamber 14, a plurality of micropores are arranged on the microporous pipe, the size of the pore diameter is about 1mm, and the mixing chamber 14 is connected with a photooxidation gas injection device. The photo-oxidation gas injection device comprises a positive electrode 8 and a negative electrode 9 which are connected with a high-voltage pulse power supply 5, a plurality of negative oxygen-based generators 10 are fixed on the negative electrode 9, after the high-voltage pulse power supply 5 is started, strong corona is formed between the negative oxygen-based generators 10 and the positive electrode 8, air is introduced into the space between the negative oxygen-based generators 10 and the positive electrode 8 through a fan 13, photo-oxidation gas is formed under the action of the corona, and then the photo-oxidation gas is injected into a mixing chamber 14 through an air outlet 13. The photo-oxidation gas is injected into the mixing chamber 14 and then enters the ejector spray gun 16 through the microporous pipe 15 to complete the mixing of the gas and the sewage, and then is injected into the water body at a high speed through the ejector spray gun 16 to realize the oxidation-reduction reaction with the sewage.

Specifically, the priming pump 1 is started, and under the power provided by the priming pump 1, the priming pump 1 pumps clean water or sewage which is used for filtering the water body to be treated. The clean water (or the sewage of the water body to be treated after filtration) flows through the water inlet pipe 2, the water diversion pump 1 and the water outlet pipe 3 in sequence, the flow velocity in the pipe is increased sharply under the action of the bell mouth 4, and a certain negative pressure is formed in the mixing chamber 14 when the clean water flows through the pipeline. The gas in the mixing chamber 14 is mixed with clean water (or filtered sewage) in the pipe through the microporous pipe 15, when the gas-water mixture flows to the front end of the jet device spray gun 16, the flow velocity is reduced, the jet device spray gun 16 is divided into multiple stages, the pipe diameter is reduced step by step, the flow velocity of the gas-water mixture is increased step by step, and finally the gas-water mixture is injected into the water body at high speed from the tail end of the jet device spray gun 16.

The positive electrode 8, the cable 7, the high-voltage pulse power supply 5 and the negative electrode 9 are sequentially connected, and the negative oxygen radical generator 10 is divided into two groups and fixed on the negative electrode 9. After the high voltage pulse power supply 5 is turned on, the high voltage pulse causes a strong corona to form between the negative oxygen-based generator 10 and the positive electrode 8. The negative oxygen-based generators 10 are arranged on the negative electrode 9 in a rectangular array, the number of the negative oxygen-based generators is 72, and the negative oxygen-based generators are divided into two groups, wherein each group comprises 6 rows and 6 columns. The positive electrode 8, the negative electrode 9 and the negative oxygen-based generator 10 are made of metal materials.

Starting the fan, under the action of the fan 12, air enters the space between the positive electrode and the negative electrode from the louver 6, strong corona is formed between the negative oxygen radical generator 10 and the positive electrode 8, and under the action of the corona, oxygen in the air is converted into oxygen atoms (O), hydroxyl groups (OH) and ozone (O) by electrons on the negative oxygen radical generator 10₃) And ions, with a large number of free electrons being generated. Water molecules in the air are converted into hydrogen atoms (. H) and hydroxyl groups (. OH), nitrogen in the air is converted into nitrogen atoms (. N), and a large amount of free electrons are generated. The free electrons have high energy and can cause neutral molecules or atoms to generate elastic collision and inelastic collision, and the inelastic collision can promote the neutral molecules or atoms to further generate electrons and ions. Oxygen, nitrogen and water molecules in the air can react with free electrons. The reaction equation is as follows:

e+O₂→e+·O+·O ①

e+N₂→e+·N+·N ②

e+H₂O→e+·H+·OH ③

under the action of corona, oxygen atoms (O) and water molecules react to generate hydroxyl groups (OH). The oxygen atom (O) collides with other gas molecules, and the following oxidation reactions are involved:

(·O)+H₂O→·OH+·OH ④

(·O)+H₂O→·O+H₂O ⑤

(·O)+O₂→O₃ ⑥

the ventilation pipeline 11, the fan 12, the air outlet 13 and the mixing chamber 14 are connected in sequence. Air carries a large amount of oxygen atoms (. O), nitrogen atoms (. N), hydrogen atoms (. N), ozone (O)₃) Hydroxyl radicals (. OH) and a large number of free electrons and ions. Under the power of a fan 12, the gas is collected by a ventilation pipeline 11 and discharged from an air outlet 13 to enter a mixing chamber 14, and the gas enters an ejector through a microporous pipe 15And the spray gun 16 completes the mixing of the gas and the sewage, and finally the gas and the sewage are driven into the water body by the jet device spray gun 16 at high speed. Due to the extremely high speed, the stirring device can effectively stir the water body, realize the full mixing with the water body and generate the oxidation reduction reaction.

In this embodiment, ejector spray gun 16 is stainless steel, and ejector spray gun 16 divides into four sections, and the pipe diameter reduces step by step. The pipe diameters of the four sections are respectively 100mm, 50mm, 25mm and 10 mm.

The sewage dissolved oxygen ejector with photooxidation has the following complete operation flow:

the priming pump 1 is started, and under the power provided by the priming pump 1, the priming pump 1 pumps clean water or sewage of the water body to be treated after filtration. Clear water (or sewage of a water body to be treated after filtration) sequentially flows through the water inlet pipe 2, the water guide pump 1 and the water outlet pipe 3, and the flow velocity in the pipe is sharply increased under the action of the bell mouth 4. When flowing through the pipe, a certain negative pressure is created in the mixing chamber 14.

The high voltage pulse power supply 5 is turned on and the high voltage pulse causes an intense corona to form between the negative oxygen-based generator 10 and the positive electrode 8. Starting a fan 12, enabling air to enter the space between the positive electrode and the negative electrode from the louver 6 under the action of the fan 12, forming a strong corona between the negative oxygen radical generator 10 and the positive electrode 8, and enabling oxygen in the air to be converted into oxygen atoms (O), hydroxyl groups (OH) and ozone (O) by electrons on the negative oxygen radical generator 10 under the action of the corona₃) And ions, with a large number of free electrons being generated. Water molecules in the air are converted into hydrogen atoms (. H) and hydroxyl groups (. OH), nitrogen in the air is converted into nitrogen atoms (. N), and a large amount of free electrons are generated. The free electrons have high energy and can cause neutral molecules or atoms to generate elastic collision and inelastic collision, and the inelastic collision can promote the neutral molecules or atoms to further generate electrons and ions.

The ventilation pipeline 11, the fan 12, the air outlet 13 and the mixing chamber 14 are connected in sequence. Air carries a large amount of oxygen atoms (. O), nitrogen atoms (. N), hydrogen atoms (. N), ozone (O)₃) Hydroxyl radical (OH) and a large amount of free electrons and ions are collected by the air duct 11 under the power of the fan 12 and discharged from the air outlet 13 into the mixing chamber 14。

The fan 12 causes a positive pressure to be created in the mixing chamber 14 and a negative pressure to be created in the mixing chamber 14 when high velocity sewage flows through the pipe. The two components act simultaneously to promote the gas to enter the jet device spray gun 16 from the microporous pipe 15, thus completing the mixing of the gas and the sewage in the pipe. The jet device spray gun 16 is divided into four stages, the pipe diameter is gradually reduced, the flow velocity of the gas-water mixture is gradually increased, and finally the gas-water mixture is injected into the water body at high speed from the tail end of the jet device spray gun 16. Because the injected gas-water mixture has extremely high speed, the gas-water mixture can effectively stir the water body, and can be fully mixed with the water body and generate oxidation reduction reaction.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.