CN211170326U - Device to industrial waste water advanced treatment - Google Patents
Device to industrial waste water advanced treatment Download PDFInfo
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- CN211170326U CN211170326U CN201921796975.4U CN201921796975U CN211170326U CN 211170326 U CN211170326 U CN 211170326U CN 201921796975 U CN201921796975 U CN 201921796975U CN 211170326 U CN211170326 U CN 211170326U
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Abstract
A device for carrying out advanced treatment on industrial wastewater comprises a wastewater pool, a self-cleaning filter, an ozone catalytic oxidation tower, an ozone decomposition tower, an air floatation separator, an MBR (membrane bioreactor) and a clean water pool; the water outlet of the fluidized bed type ozone catalytic oxidation reactor is communicated with the water inlet of the air floatation separator, and the liquid discharge port of the air floatation separator is communicated with the MBR reactor; the solid discharge port at the bottom of the air floatation separator is connected with an ejector, a reflux is arranged in the ozone decomposition tower, and the ejector is arranged between an outlet pipeline of the reflux circulating pump and a water inlet of the ozone catalytic oxidation tower. The utility model can realize the purposes of decolorization, deodorization and sterilization while degrading COD and ammonia nitrogen, and can ensure that the effluent can reach the standard comprehensively; the dynamic fluidized bed and water-solid two-phase circulation structure greatly improves the utilization efficiency of ozone, reduces the ozone adding amount per ton of water, reduces the investment and operation cost per ton of water, and has the advantages of clean and mild treatment process and almost no generation of secondary pollution and hazardous wastes.
Description
Technical Field
The utility model relates to an industrial wastewater treatment technical field, concretely relates to composite set of industrial wastewater advanced treatment.
Background
With the rapid development of the economy of China, the technical level of industrial production is continuously improved, and the environment is seriously damaged while convenience is brought to the life of the nation. China is a water-deficient country, and how to increase the water circulation, improve the emission standard and realize the sustainable utilization of water resources has long been a consensus.
The advanced treatment is a process of separating and converting pollutants in the wastewater by utilizing various treatment technologies on the basis of secondary biochemical treatment and further treating the wastewater for reaching the discharge standard or reaching the recycling standard. The treatment method of industrial wastewater can be divided into the following steps according to the action principle: physical, chemical oxidation, biological, and the like.
The physical method is a treatment method for separating and recovering suspended pollutants which are not dissolved in the wastewater by utilizing physical action. The method can only remove suspended matters in water without changing the properties of pollutants in the water, so that the physical method generally only purifies the water to a certain degree, and the treated wastewater cannot reach the discharge standard.
The chemical oxidation method is to convert organic matter which is difficult to degrade into organic matter which is easy to degrade through the oxidation of oxidant, or to completely oxidize the organic matter into CO2And H2O, a process for producing the same.
The biochemical method is to decompose organic matter and some inorganic matter in industrial waste water into non-toxic and harmless inorganic matter by utilizing the decomposition of various microbes, so as to achieve the purpose of waste water purification.
At present, the combined technology of effectively combining physical, chemical and biological technologies is increasingly applied to advanced treatment of industrial wastewater. The combined technology can give full play to the advantages of various technical means, overcomes the defect of a single technology, effectively realizes standard discharge and reuse of wastewater, but has the problems of incapability of recycling and reusing reactants, secondary pollution, high cost and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a device for carrying out advanced treatment on industrial wastewater. The treatment device can ensure good treatment effect, maintain low operation cost, hardly generate secondary pollution and dangerous waste, and can be easily combined with other treatment processes.
The technical scheme of the utility model as follows:
a device for carrying out advanced treatment on industrial wastewater comprises a wastewater pool, a self-cleaning filter, a fluidized bed type ozone catalytic oxidation reactor, an air floatation separator, an MBR (membrane bioreactor) and a clean water pool; the water outlet of the fluidized bed type ozone catalytic oxidation reactor is communicated with the water inlet of the air floatation separator, and the liquid discharge port of the air floatation separator is communicated with the MBR reactor.
The combination of the fluidized bed type ozone catalytic oxidation reactor and the air flotation separator realizes the separation of the catalyst and the sewage outside the tower, and simultaneously ensures that the effluent has no suspended matters.
Preferably, a solid discharge port at the bottom of the air floatation separator is connected with a water inlet of the fluidized bed type ozone catalytic oxidation reactor through an ejector, so that the catalyst returns to the ozone catalytic oxidation tower again for recycling.
The fluidized bed type ozone catalytic oxidation reactor comprises an ozone catalytic oxidation tower and an ozone decomposition tower, wherein a water outlet of the ozone catalytic oxidation tower is connected with a water inlet of the ozone decomposition tower, and the ozone catalytic oxidation tower is a fluidized bed type reactor and is internally provided with a fluidized catalyst, so that the oxidation effect of ozone is improved.
The water inlet of the self-cleaning filter is communicated with a wastewater pool through a wastewater lifting pump pipeline, and the water outlet of the self-cleaning filter is communicated with the water inlet of the fluidized bed type ozone catalytic oxidation reactor; the water outlet of the MBR is communicated with a clean water tank through a water outlet lift pump pipeline.
Preferably, a reflux circulation is arranged in the ozone decomposition tower, and a reflux pipeline of the reflux circulation pump is respectively connected with a reflux outlet of the ozone decomposition tower and a water inlet (reflux inlet) of the ozone catalytic oxidation tower to perform secondary circulation treatment of effluent; furthermore, the ejector is arranged between an outlet pipeline of the reflux circulating pump and a water inlet (reflux inlet) of the ozone catalytic oxidation tower.
As a preferred technical scheme, the self-cleaning filter is provided with an automatic control valve, and a backwashing program is set according to the quality of inlet water, so that the automatic backwashing process is realized.
As a preferred technical scheme, the ozone catalytic oxidation tower and the ozone decomposition tower are both provided with tail gas destructors, and an air inlet of the ozone catalytic oxidation tower is connected with an air production port of an ozone generator.
As a preferred technical scheme, a water distributor is arranged at the bottom in the ozone catalytic oxidation tower, so that the contact area of water and ozone can be increased.
As a preferred technical scheme, a titanium plate aeration disc is arranged in the ozone catalytic oxidation tower, so that the utilization rate of ozone can be improved.
As a preferred technical scheme, a corundum micropore aeration disc is arranged in the ozone decomposition tower, so that the mass transfer efficiency of oxygen is improved.
As a preferred technical scheme, the MBR is matched with a membrane cleaning system, and backwashing, online chemical cleaning and offline chemical cleaning procedures are periodically performed according to transmembrane pressure difference so as to ensure the stable operation of a membrane unit.
The utility model discloses can reach following beneficial effect:
by adopting the device for advanced treatment of industrial wastewater, 1) the advanced oxidation treatment technology + adsorption technology + aerobic biological method + membrane filtration technology is combined, the purposes of decolorization, deodorization and sterilization can be realized while COD and ammonia nitrogen are degraded, and the effluent can be ensured to reach the standard comprehensively; 2) by adopting a structure of 'dynamic fluidized bed + water-solid two-phase circulation', the utilization efficiency of ozone is greatly improved, the ozone adding amount per ton of water is reduced, and the investment and operation cost per ton of water are reduced. 3) The treatment process is mild and clean, and hardly generates secondary pollution and hazardous waste.
Drawings
FIG. 1 is a schematic structural view of an apparatus for advanced treatment of industrial wastewater according to the present invention;
FIG. 2 is a process flow diagram of the device for advanced treatment of industrial wastewater.
The attached drawings indicate the following: 1. a wastewater collection tank; 2. a self-cleaning filter; 3. a fluidized bed type ozone catalytic oxidation reactor; 3-1, an ozone catalytic oxidation tower; 3-2, an ozone decomposition tower; 3-3, an ozone generator; 3-4 tail gas destroyer; 4. an air floatation separator; 5. an MBR reactor; 6, a clean water tank; a-1, a wastewater lift pump; a-2, a reflux circulating pump; a-3, a water outlet lift pump; b-1, an ejector.
Detailed Description
The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.
Example 1
A device for carrying out advanced treatment on industrial wastewater comprises a wastewater pool 1, a self-cleaning filter 2, a fluidized bed type ozone catalytic oxidation reactor 3, an air flotation separator 4, an MBR (membrane bioreactor) 5 and a clean water pool 6; the fluidized bed type ozone catalytic oxidation reactor 3 comprises an ozone catalytic oxidation tower 3-1 and an ozone decomposition tower 3-2, a water outlet of the ozone catalytic oxidation tower 3-1 is connected with a water inlet of the ozone decomposition tower 3-2, the ozone catalytic oxidation tower 3-1 is a fluidized bed type reactor and is internally provided with a fluidized catalyst, a water outlet of the ozone decomposition tower 3-2 is communicated with a water inlet of an air floatation separator 4, a liquid discharge port of the air floatation separator 4 is communicated with an MBR (membrane bioreactor) 5, and a solid discharge port at the bottom of the air floatation separator 4 is connected with an ejector B-1; a reflux is arranged in the ozone decomposition tower 3-2, and a reflux pipeline of a reflux circulating pump A-2 is respectively connected with a reflux outlet of the ozone decomposition tower and a water inlet (reflux inlet) of the ozone catalytic oxidation tower to carry out secondary circulating treatment on effluent; the ejector B-1 is arranged between an outlet pipeline of the reflux circulating pump and a water inlet (reflux inlet) of the ozone catalytic oxidation tower, and the catalyst is recovered through the ejector B-1 and returns to the ozone catalytic oxidation tower for recycling 3-1.
The water inlet of the self-cleaning filter 2 is communicated with a wastewater pool 1 through a wastewater lifting pump A-1 pipeline, and the water outlet of the self-cleaning filter 2 is communicated with the water inlet of an ozone catalytic oxidation tower 3-1; the water outlet of the MBR 5 is communicated with a clean water tank 6 through a water outlet lifting pump A-3 pipeline.
The self-cleaning filter 2 is provided with an automatic control valve, and a backwashing program is set according to the water quality of the inlet water, so that the automatic backwashing process is realized.
The ozone catalytic oxidation tower 3-1 and the ozone decomposition tower 3-2 are both provided with tail gas destructors, and an air inlet of the ozone catalytic oxidation tower 3-1 is connected with an air outlet of the ozone generator 3-3. The bottom in the ozone catalytic oxidation tower 3-1 is provided with a water distributor which can increase the contact area of water and ozone. A titanium plate aeration disc is arranged in the ozone catalytic oxidation tower 3-1. The air inlet of the ozone decomposition tower 3-2 is connected with a compressed air pipeline; and a corundum micropore aeration disc is arranged in the ozone decomposition tower 3-2, so that the mass transfer efficiency of oxygen is improved.
The MBR 5 is matched with a membrane cleaning system, and backwashing, online chemical cleaning and offline chemical cleaning procedures are periodically performed according to transmembrane pressure difference so as to ensure the stable operation of the membrane unit.
Claims (7)
1. The utility model provides a device to industrial waste water advanced treatment which characterized in that: comprises a wastewater pool (1), a self-cleaning filter (2), a fluidized bed type ozone catalytic oxidation reactor (3), an air flotation separator (4), an MBR (membrane bioreactor) reactor (5) and a clean water pool (6); the water outlet of the fluidized bed type ozone catalytic oxidation reactor (3) is communicated with the water inlet of the air floatation separator (4), and the liquid discharge port of the air floatation separator (4) is communicated with the MBR reactor.
2. The device for advanced treatment of industrial wastewater as claimed in claim 1, characterized in that: the solid discharge port at the bottom of the air floatation separator (4) is connected with the water inlet of the fluidized bed type ozone catalytic oxidation reactor (3) through the ejector (B-1).
3. The device for advanced treatment of industrial wastewater as claimed in claim 2, characterized in that: the fluidized bed type ozone catalytic oxidation reactor (3) comprises an ozone catalytic oxidation tower (3-1) and an ozone decomposition tower (3-2), a water outlet of the ozone catalytic oxidation tower (3-1) is connected with a water inlet of the ozone decomposition tower (3-2), and the ozone catalytic oxidation tower (3-1) is a fluidized bed type reactor and is internally provided with a fluidized catalyst.
4. The device for advanced treatment of industrial wastewater as claimed in claim 3, characterized in that: a reflux is arranged in the ozone decomposition tower (3-2), and a reflux pipeline of the reflux circulating pump (A-2) is respectively connected with a reflux outlet of the ozone decomposition tower (3-2) and a water inlet of the ozone catalytic oxidation tower (3-1).
5. The device for advanced treatment of industrial wastewater as claimed in claim 4, characterized in that: the ejector (B-1) is arranged between an outlet pipeline of the reflux circulating pump (A-2) and a water inlet of the ozone catalytic oxidation tower.
6. The device for advanced treatment of industrial wastewater as claimed in claim 1, characterized in that: the water inlet of the self-cleaning filter (2) is communicated with a wastewater pool (1) through a wastewater lifting pump (A-1) pipeline, and the water outlet of the self-cleaning filter (2) is communicated with the water inlet of the fluidized bed type ozone catalytic oxidation reactor (3); the water outlet of the MBR (5) is communicated with a clean water tank (6) through a water outlet lifting pump (A-3) pipeline.
7. The device for advanced treatment of industrial wastewater as claimed in claim 3, characterized in that: the ozone catalytic oxidation tower (3-1) and the ozone decomposition tower (3-2) are both provided with tail gas destructors (3-4), and an air inlet of the ozone catalytic oxidation tower (3-1) is connected with an air production port of the ozone generator (3-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921796975.4U CN211170326U (en) | 2019-10-24 | 2019-10-24 | Device to industrial waste water advanced treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921796975.4U CN211170326U (en) | 2019-10-24 | 2019-10-24 | Device to industrial waste water advanced treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211170326U true CN211170326U (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921796975.4U Active CN211170326U (en) | 2019-10-24 | 2019-10-24 | Device to industrial waste water advanced treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211170326U (en) |
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2019
- 2019-10-24 CN CN201921796975.4U patent/CN211170326U/en active Active
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Address after: Room 402-403, floor 4, no.6, Honggang Road, Ganjingzi District, Dalian City, Liaoning Province, 116000 Patentee after: Zhongyi Environmental Protection Technology (Dalian) Co.,Ltd. Address before: 116000 No.1, floor 2, unit 2, No.11, Xinhongyuan, Ganjingzi District, Dalian City, Liaoning Province Patentee before: Zhongyi Environmental Protection Technology (Dalian) Co.,Ltd. |