High-salt and high-phenol wastewater deep purification and stable up-to-standard treatment equipment

Abstract

A high-salt high-phenol wastewater deep purification and stable standard treatment device relates to the technical field of wastewater standard treatment, and comprises a water collecting tank, a liquid level meter and a mechanical grid, the water collecting tank is divided into two areas, one area is a water accumulation area, the other area is a pretreatment area, a mechanical grid is installed between the two areas, a liquid level meter is installed in the water accumulation area of the water collecting tank, and an outlet of the water collecting tank is connected with an inlet of the horizontal flow type oil separation tank; the equipment comprises a biochemical treatment SMBR system and an ozone oxidation device, biochemically removes organic matters, ammonia nitrogen, total phosphorus, suspended matters, chromaticity and the like, treats COD (Chemical Oxygen Demand) under a high-salt condition, achieves up-to-standard discharge, and has the main advantages that the treatment cost is low, and the purchase of a large amount of fresh water is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of standard treatment of waste water, and in particular to a high-salt high-phenol waste water deep purification and stable standard treatment equipment. BACKGROUND

[0002] In the field of industrial waste water treatment, high-salt high-phenol waste water is regarded as a typical representative of difficult-to-treat waste water due to its complex composition, strong toxicity and poor biodegradability. The waste water is mainly derived from coal chemical industry, petroleum refining, pesticide and pharmaceutical intermediate production and the like, and is characterized in that high-concentration inorganic salts (such as sodium chloride and sodium sulfate) and phenol, methyl phenol and other toxic and harmful phenolic organic compounds are contained. The high-salt environment produces strong osmotic pressure inhibition and toxic effect on microorganisms, and the phenolic compounds have destructive effect on the biological enzyme system, and the synergistic effect of the two leads to the failure of traditional biological treatment methods. At present, for the treatment of the waste water, a large amount of fresh water is diluted and then subjected to conventional biochemical treatment in the world, and the investment and operation cost of enterprises is high.

[0003] Therefore, it is necessary to invent a high-salt high-phenol waste water deep purification and stable standard treatment equipment. The biochemical treatment SMBR system and the ozone oxidation device are used to remove organic matters, ammonia nitrogen, total phosphorus, suspended solids, color and the like, and to treat COD under the high-salt condition, so that the waste water reaches the standard discharge, thereby greatly reducing the treatment cost. SUMMARY

[0004] In view of the above technical problems, the application provides a high-salt high-phenol waste water deep purification and stable standard treatment equipment to solve the above problems.

[0005] The technical scheme used in the application is as follows: a high-salt high-phenol waste water deep purification and stable standard treatment equipment, comprising: a water collecting pool, a liquid level meter, a corrosion-resistant lifting pump and a mechanical grille. The water collecting pool is divided into two regions, one region is a water accumulation region, and the other region is a pretreatment region, a mechanical grille is installed between the two regions, a liquid level meter is installed in the water accumulation region of the water collecting pool, and the outlet of the water collecting pool is connected with the inlet of a horizontal flow type oil separation tank. The water inlet of the corrosion-resistant lifting pump is connected with the inlet pipeline of the water collecting pool, the water outlet pipeline of the corrosion-resistant lifting pump is connected with the water inlet end of the mechanical grille, the mechanical grille is connected with the water inlet area of the horizontal flow type oil separation tank through a pipeline, and the pipeline has a certain slope.

[0006] Preferably, the high-salt high-phenol waste water deep purification and stable standard treatment equipment further comprises a horizontal flow type oil separation tank, an extraction pretreatment key and a high-efficiency extraction machine. The outlet of the horizontal flow oil separator is connected to the top inlet of the extraction pretreatment key via a pipe. The bottom of the extraction pretreatment key is equipped with a slag discharge pipe. A pH meter is installed inside the extraction pretreatment key. The extraction pretreatment key is connected to a high-efficiency extractor via a pipe.

[0007] Preferably, the high-salt and high-phenol wastewater deep purification and stable treatment equipment further includes: a regulating and homogenizing tank, a side-entry agitator, a microporous aerator, and a Roots blower; The homogenizing tank is connected to the high-efficiency extractor via a pipeline. An electric regulating valve is installed on this pipeline. An online pH meter, ORP meter, and level gauge are installed inside the homogenizing tank. A side-entry agitator is also installed inside the homogenizing tank. The outlet pipe of the homogenizing tank is connected to the regulating valve. A microporous aerator is installed at the bottom of the homogenizing tank. The side-entry agitator is connected to the outlet of a Roots blower via a pipeline. A filter is installed at the inlet of the Roots blower. The homogenizing tank also contains an online pH meter, ORP meter, and level gauge.

[0008] Preferably, the high-salt and high-phenol wastewater deep purification and stable treatment equipment further includes: a related reagent dosing component, a regulating valve, an SMBR biological treatment tank, and an aeration control system; The regulating valve is connected to the inlet of the SMBR biological tank. The aeration control system is installed inside the SMBR biological tank, which is divided into a membrane separation zone by a partition. The associated reagent dosing component is connected to the SMBR biological tank via a metering pump.

[0009] Preferably, the high-salt and high-phenol wastewater deep purification and stable treatment equipment further includes: a membrane separation zone, a submerged membrane module, and a self-priming pump; The membrane separation zone is equipped with a submerged membrane module and a self-priming pump; the outlet end of the membrane separation zone is connected to a water collection pipe.

[0010] Preferably, the high-salt and high-phenol wastewater deep purification and stable treatment equipment further includes: a water collection pipe, a clean water tank, and a booster pump; The water collection pipe is connected to the inlet of the clean water tank; the clean water tank is connected to the bottom inlet of the ozone catalytic oxidation tower via a booster pump.

[0011] Preferably, the high-salt and high-phenol wastewater deep purification and stable compliance treatment equipment further includes: an ozone catalytic oxidation tower, a titanium microporous gas distributor, a solid catalyst filling layer, and an ozone generator. The ozone catalytic oxidation tower has a built-in solid catalyst filling layer, and a titanium microporous gas distributor is provided at the bottom of the ozone catalytic oxidation tower. The titanium microporous gas distributor is connected to the gas outlet of the ozone generator. The outlet pipe of the ozone catalytic oxidation tower is connected to the inlet of the effluent monitoring pool. An ozone flow meter and a concentration meter are installed at the bottom of the ozone catalytic oxidation tower.

[0012] Preferably, the high-salt and high-phenol wastewater deep purification and stable treatment equipment further includes: an effluent monitoring tank and a multi-parameter online monitoring instrument; The sampling point of the multi-parameter online monitoring instrument is set at the outlet pipe of the effluent monitoring pool; the effluent monitoring pool has two outlets, one connected to the outside and the other connected to another inlet of the ozone catalytic oxidation tower. An ozone exhaust gas destroyer is installed at the pipe connection between the ozone catalytic oxidation tower and the effluent monitoring pool.

[0013] The advantages of this invention compared to the prior art are: 1. The oil-water separated wastewater enters the extraction pretreatment unit. By adding acid and automatically controlling the pH with a pH meter, the pH of the wastewater is adjusted to three to four. Then, the wastewater enters the high-efficiency extractor and comes into countercurrent contact with a specific extractant. The extractant, which is enriched with phenols, is separated and sent to the regeneration system to recover the phenols. The phenol-free wastewater enters the next unit, which can efficiently and selectively recover most of the phenols in the wastewater. This greatly reduces the toxicity load and treatment difficulty of the subsequent biochemical units and realizes the recovery of high-value resources, with significant environmental and economic benefits.

[0014] 2. Wastewater enters the SMBR biological treatment tank from the equalization tank through the regulating valve, where it mixes with the mixed liquor and returned sludge inside the SMBR biological treatment tank. Subsequently, nutrients and pH adjusters are applied through the associated reagent dosing component to precisely control pH and nutrients, creating an optimal living environment for salt-tolerant microorganisms. High sludge concentration is achieved through returned sludge, which greatly improves the treatment capacity, establishes and stabilizes the biochemical reaction foundation under high-salt conditions, and ensures efficient subsequent degradation.

[0015] 3. Clean water enters the ozone catalytic oxidation tower through a booster pump. Ozone is generated by an ozone generator and monitored by an ozone flow meter and concentration meter. Subsequently, ozone is injected into the interior through a solid catalyst filling layer and fully mixed with the incoming water. Ozone is a strong oxidant that can directly oxidize organic matter and is a prerequisite for achieving rapid oxidation reactions. Efficient mixing can reduce ozone escape and lower operating costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the basic processing technology of the present invention.

[0017] Reference numerals: 1. Water collection tank; 1-1. Level gauge; 2. Corrosion-resistant booster pump; 3. Mechanical bar screen; 4. Horizontal flow oil separator; 5. Related reagent dosing component; 6. Extraction pretreatment key; 7. High-efficiency extractor; 8. Equalization and homogenization tank; 8-1. Side-entry agitator; 8-2. Microporous aerator; 9. Roots blower; 10. Control valve; 11. SMBR biological treatment tank; 12. Aeration control system; 13. Membrane separation zone; 13-1. Submerged membrane module; 13-2. Self-priming pump; 14. Water collection pipe; 15. Clear water tank; 16. Booster pump; 17. Ozone catalytic oxidation tower; 18. Titanium microporous air distributor; 19. Solid catalyst packing layer; 20. Effluent monitoring tank; 20-1. Multi-parameter online monitoring instrument; 21. Ozone generator. Detailed Implementation

[0018] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] In the description of this invention, it should be noted that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are merely simplified descriptions for ease of description and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, for ease of description, spatial relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatial relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the accompanying drawings. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatial relative descriptive terms used herein can be interpreted accordingly.

[0020] Implementation, for example Figure 1 As shown, a deep purification and stable treatment equipment for high-salt and high-phenol wastewater includes: a water collection tank 1, a level gauge 1-1, a corrosion-resistant lift pump 2, and a mechanical bar 3. The collection tank 1 is divided into two areas: a water accumulation area and a pretreatment area. A mechanical bar screen 3 is installed between the two areas to achieve water flow zoning. A level gauge 1-1 is installed inside the water accumulation area of ​​the collection tank 1. The outlet of the collection tank 1 is connected to the inlet of the horizontal flow grease trap 4. The inlet of the corrosion-resistant booster pump 2 is connected to the inlet pipe of the collection tank 1, and the outlet pipe of the corrosion-resistant booster pump 2 is connected to the inlet end of the mechanical bar screen 3. The mechanical bar screen 3 is connected to the inlet area of ​​the horizontal flow grease trap 4 via a pipe with a certain slope. 3. Intercepting suspended impurities >5 mm; Specifically, firstly, workshop wastewater flows into collection tank 1 by gravity through pipelines. Using corrosion-resistant booster pump 2, the wastewater first passes through mechanical screen 3 to intercept suspended impurities >5 mm, and then enters horizontal flow oil separator 4. Mechanical screen 3 removes large particles of impurities through physical filtration to prevent blockage of subsequent pipelines and equipment. Horizontal flow oil separator 4 utilizes the density difference between oil, water, and sludge to achieve natural separation through gravity settling and floating, which can effectively remove most of the floating oil and easily settled heavy sludge, protecting subsequent extraction, biochemical and other units from the toxicity of oil coating.

[0021] In one optional embodiment of the present invention, such as Figure 1 As shown, a deep purification and stable treatment equipment for high-salt and high-phenol wastewater also includes: a horizontal flow oil separator 4, an extraction pretreatment unit 6, and a high-efficiency extractor 7. The outlet of the horizontal flow oil separator 4 is connected to the top inlet of the extraction pretreatment unit 6 via a pipe. The bottom of the extraction pretreatment unit 6 is equipped with a slag discharge pipe, and a pH meter is installed inside the extraction pretreatment unit 6. The extraction pretreatment unit 6 is connected to the high-efficiency extractor 7 via a pipe. Specifically, the wastewater after oil separation enters the extraction pretreatment unit 6. By adding acid and automatically controlling the pH by the pH meter, the pH of the wastewater is adjusted to three to four. Then, the wastewater enters the high-efficiency extractor 7 and comes into countercurrent contact with a specific extractant. The extractant enriched with phenols is separated and sent to the regeneration system to recover the phenols. The wastewater after phenol removal enters the next unit. Under acidic conditions, phenols exist in molecular form and are more soluble in organic extractants. This process is based on the physicochemical principle of the distribution of phenols between the organic and aqueous phases, which can efficiently and selectively recover most of the phenols in the wastewater. This significantly reduces the toxicity load and treatment difficulty of subsequent biochemical units and realizes the recovery of high-value resources, with significant environmental and economic benefits.

[0022] In one optional embodiment of the present invention, such as Figure 1 As shown, a deep purification and stable treatment equipment for high-salt and high-phenol wastewater also includes: a regulating and homogenizing tank 8, a side-entry agitator 8-1, a microporous aerator 8-2, and a Roots blower 9. The equalization and homogenization tank 8 is connected to the high-efficiency extractor 7 via a pipeline equipped with an electric regulating valve. An online pH meter, ORP meter, and level gauge are installed inside the equalization and homogenization tank 8. A side-entry agitator 8-1 is also installed inside the equalization and homogenization tank 8. The outlet pipe of the equalization and homogenization tank 8 is connected to the regulating valve 10. A microporous aerator 8-2 is installed at the bottom of the equalization and homogenization tank 8. The side-entry agitator 8-1 is connected to the outlet of the Roots blower 9 via a pipeline. A filter is installed at the inlet of the Roots blower 9. Specifically, wastewater enters the equalization and homogenization tank 8 under the control of the electric regulating valve and is then processed by the side-entry agitator 8-1. The powerful fluid shearing and circulation thoroughly mixes wastewater entering from different times and sources, homogenizing its core indicators such as COD, salinity, and pH, providing extremely stable influent conditions for subsequent treatment. Simultaneously, a Roots blower 9 pre-aerates the microporous aerator 8-2, introducing air to remove some volatile substances and initially oxidize some reducing substances, while preventing suspended solids from settling. The homogenizing tank 8 is equipped with an online pH meter, ORP meter, and level gauge. The level gauge controls the linkage between the influent and the booster pump, maintaining a reasonable liquid level and hydraulic residence time. pH / ORP data provides feedforward signals for subsequent chemical dosing.

[0023] In one optional embodiment of the present invention, such as Figure 1 As shown, a deep purification and stable treatment device for high-salt and high-phenol wastewater also includes: a related reagent dosing component 5, a regulating valve 10, an SMBR biological treatment tank 11, and an aeration control system 12. The regulating valve 10 is connected to the inlet of the SMBR biological treatment tank 11. The regulating valve 10 precisely controls the amount of water entering the biological treatment tank, maintaining a constant load. The aeration control system 12 is installed inside the SMBR biological treatment tank 11, which is divided into a membrane separation zone 13 by a baffle plate. The associated chemical dosing component 5 is connected to the SMBR biological treatment tank 11 via a metering pump. Specifically, wastewater enters the SMBR biological treatment tank 11 from the equalization tank 8 through the regulating valve 10, mixing with the mixed liquor and returned sludge inside the SMBR biological treatment tank 11. Nutrients and pH adjusters are then applied through the associated chemical dosing component 5, precisely controlling the flow rate. pH and nutrients are adjusted to create an optimal living environment for salt-tolerant microorganisms. High sludge concentration is achieved through sludge recirculation, significantly improving treatment capacity and establishing and stabilizing the biochemical reaction foundation under high-salt conditions, ensuring efficient subsequent degradation. Although it does not directly remove pollutants, it is a prerequisite for all biochemical removal. The prepared mixed liquor flows forward in the SMBR biological treatment tank 11, and microbubbles are evenly released by the aeration control system 12 to provide oxygen and stir the mixed liquor, enabling salt-tolerant microorganisms to carry out carbonization, nitrification / denitrification reactions, efficiently removing most of the biodegradable COD, ammonia nitrogen, and total phosphorus, thus degrading pollutants.

[0024] In one optional embodiment of the present invention, such asFigure 1 As shown, a deep purification and stable treatment equipment for high-salt and high-phenol wastewater also includes: a membrane separation zone 13, a submerged membrane module 13-1, and a self-priming pump 13-2. The membrane separation zone 13 is equipped with a submerged membrane module 13-1 and a self-priming pump 13-2. The submerged membrane module 13-1 is usually a polyvinylidene fluoride hollow fiber membrane, which can completely retain bacteria, suspended solids and macromolecules. The outlet end of the membrane separation zone 13 is connected to the water collection pipe 14. Specifically, the sludge-water mixture after the biochemical reaction enters the membrane separation zone 13. The submerged membrane module 13-1 is filtered under the negative pressure suction of the self-priming pump 13-2. The clean water passes through the membrane pores of the submerged membrane module 13-1 and enters the water collection pipe 14. Physical retention is achieved by using the membrane sieving principle. The membrane pores of the submerged membrane module 13-1 are much smaller than the activated sludge flocs and individual microorganisms, so as to achieve complete separation of sludge and water. The sludge is completely retained, and the permeate enters the clean water tank 15 along the water collection pipe 14.

[0025] In one optional embodiment of the present invention, such as Figure 1 As shown, a deep purification and stable treatment equipment for high-salt and high-phenol wastewater also includes: a water collection pipe 14, a clean water tank 15, and a booster pump 16. The water collection pipe 14 is connected to the inlet of the clean water tank 15; the clean water tank 15 is connected to the bottom inlet of the ozone catalytic oxidation tower 17 via the booster pump 16; specifically, clean water enters the ozone catalytic oxidation tower 17 through the booster pump 16, and ozone is generated by the ozone generator 21. After monitoring by the ozone flow meter and concentration meter, the ozone is injected into the interior through the solid catalyst filling layer 19 and fully mixed with the incoming water. Ozone is a strong oxidant that can directly oxidize organic matter; more importantly, under the catalyst and suitable pH conditions, ozone will decompose to produce more oxidizing and non-selective hydroxyl radicals, which can thoroughly mineralize organic matter. Efficiently dissolving and dispersing gaseous ozone into the water is a prerequisite for achieving rapid oxidation reaction. Efficient mixing can reduce ozone escape and reduce operating costs.

[0026] In one optional embodiment of the present invention, such as Figure 1 As shown, a deep purification and stable treatment equipment for high-salt and high-phenol wastewater also includes: an ozone catalytic oxidation tower 17, a titanium microporous gas distributor 18, a solid catalyst filling layer 19, and an ozone generator 21. The ozone catalytic oxidation tower 17 has a built-in solid catalyst packing layer 19, and a titanium microporous gas distributor 18 is installed at the bottom of the ozone catalytic oxidation tower 17. The titanium microporous gas distributor 18 is connected to the gas outlet of the ozone generator 21. The outlet pipe of the ozone catalytic oxidation tower 17 is connected to the inlet of the effluent monitoring tank 20. An ozone flow meter and a concentration meter are installed at the bottom of the ozone catalytic oxidation tower 17. Specifically, the gas-water mixture rises in the ozone catalytic oxidation tower 17, flows through the titanium microporous gas distributor 18, and undergoes a catalytic oxidation reaction, thereby decomposing the recalcitrant organic matter into... , Small molecule acids can completely decompose stubborn COD that SMBR cannot remove and powerfully destroy chromogenic groups, which is the core guarantee for stable COD and color of effluent to meet standards, while also improving the biodegradability of wastewater.

[0027] In one optional embodiment of the present invention, such as Figure 1 As shown, a deep purification and stable treatment device for high-salt and high-phenol wastewater also includes: an effluent monitoring tank 20 and a multi-parameter online monitoring instrument 20-1; The sampling point of the multi-parameter online monitoring instrument 20-1 is set at the outlet pipe of the effluent monitoring tank 20, and the data is transmitted to the central control system in real time. The effluent monitoring tank 20 has two outlets, one connected to the outside and the other connected to another inlet of the ozone catalytic oxidation tower 17. An ozone exhaust gas destroyer is installed at the pipe connection between the ozone catalytic oxidation tower 17 and the effluent monitoring tank 20. It is usually a heated catalytic type, which efficiently decomposes the residual ozone in the exhaust gas into oxygen. Specifically, the exhaust gas at the top of the ozone catalytic oxidation tower 17 enters the ozone exhaust gas destroyer, is decomposed into oxygen, and is safely discharged. The treated water overflows from the top of the ozone catalytic oxidation tower 17 and enters the effluent monitoring tank 20. The multi-parameter online monitoring instrument 20-1 is used to detect the water source. If it meets the standards, it is discharged. If it does not meet the standards, it is traced back to the ozone catalytic oxidation tower 17.

[0028] Working principle: First, the workshop wastewater flows into the collection tank 1 by gravity through the pipeline. Using the corrosion-resistant booster pump 2, the wastewater first passes through the mechanical screen 3 to intercept suspended impurities larger than five millimeters. Then it enters the horizontal flow oil separator 4. The mechanical screen 3 removes large particles of impurities through physical filtration to prevent blockage of subsequent pipelines and equipment. The horizontal flow oil separator 4 uses the density difference between oil, water and sludge to achieve natural separation through gravity settling and floating. It can effectively remove most of the floating oil and easily settled heavy sludge, protecting the subsequent extraction, biochemical and other units from the poisoning of oil coating. The oil-water separated wastewater enters the extraction pretreatment unit 6. By adding acid and automatically controlling the pH with a pH meter, the pH of the wastewater is adjusted to three to four. Then, the wastewater enters the high-efficiency extractor 7, where it comes into countercurrent contact with a specific extractant. The extractant enriched with phenols is separated and sent to the regeneration system to recover the phenols. The phenol-free wastewater enters the next unit. Under acidic conditions, phenols exist in molecular form and are more soluble in organic extractants. This process is based on the physicochemical principle of the distribution of phenols between the organic and aqueous phases, which can efficiently and selectively recover most of the phenols in the wastewater. This significantly reduces the toxicity load and treatment difficulty of subsequent biochemical units and realizes the recovery of high-value resources, resulting in significant environmental and economic benefits. Wastewater is controlled by an electric regulating valve to enter the regulating and homogenizing tank 8. Then, the side-entry agitator 8-1 performs strong fluid shearing and circulation to thoroughly mix wastewater entering from different times and sources, homogenizing its core indicators such as COD, salinity, and pH, providing extremely stable influent conditions for subsequent treatment. At the same time, the Roots blower 9 is used to pre-aerate the microporous aerator 8-2. By introducing air, some volatile substances are blown off and some reducing substances are initially oxidized, while preventing the sedimentation of suspended solids. Wastewater enters the SMBR biological treatment tank 11 from the equalization tank 8 through the regulating valve 10, where it mixes with the mixed liquor and returned sludge inside the SMBR biological treatment tank 11. Nutrients and pH adjusters are then applied via the associated reagent dosing component 5, precisely controlling pH and nutrients to create an optimal living environment for salt-tolerant microorganisms. The returned sludge achieves a high sludge concentration, significantly increasing treatment capacity and establishing and stabilizing the biochemical reaction foundation under high-salt conditions, ensuring efficient subsequent degradation. Although it does not directly remove pollutants, it is a prerequisite for all biochemical removal. The prepared mixed liquor flows forward within the SMBR biological treatment tank 11, where microbubbles are evenly released by the aeration control system 12 to provide oxygen and stir the mixed liquor, enabling salt-tolerant microorganisms to undergo carbonization, nitrification / denitrification reactions, efficiently removing most of the biodegradable COD, ammonia nitrogen, and total phosphorus, thus degrading pollutants. After the biochemical reaction, the sludge-water mixture enters the membrane separation zone 13. The submerged membrane module 13-1 is filtered under the negative pressure suction of the self-priming pump 13-2. The clean water passes through the membrane pores of the submerged membrane module 13-1 and enters the water collection pipe 14. Physical interception is achieved by using the membrane sieving principle. The membrane pores of the submerged membrane module 13-1 are much smaller than the activated sludge flocs and individual microorganisms, so as to achieve complete separation of sludge and water. The sludge is completely intercepted, and the permeate enters the clean water tank 15 along the water collection pipe 14. Clean water enters the ozone catalytic oxidation tower 17 via booster pump 16. Ozone is generated by ozone generator 21 and monitored by ozone flow meter and concentration meter. Subsequently, ozone is injected into the interior through solid catalyst filling layer 19 and thoroughly mixed with the incoming water. Ozone is a strong oxidant that can directly oxidize organic matter. More importantly, under the catalyst and suitable pH conditions, ozone decomposes to produce more potent and non-selective hydroxyl radicals, which can thoroughly mineralize organic matter. Efficiently dissolving and dispersing gaseous ozone into the water is a prerequisite for achieving rapid oxidation reaction. Efficient mixing can reduce ozone escape and lower operating costs. The gas-water mixture rises within the ozone catalytic oxidation tower 17, flows through the titanium microporous gas distributor 18, and undergoes a catalytic oxidation reaction, thereby decomposing recalcitrant organic matter into... , Small molecule acids can completely decompose stubborn COD that SMBR cannot remove and powerfully destroy chromogenic groups, which is the core guarantee for stable compliance of effluent COD and color, while also improving the biodegradability of wastewater.

[0029] The exhaust gas from the top of the ozone catalytic oxidation tower 17 enters the ozone exhaust gas destroyer, where it is decomposed into oxygen and safely discharged. The treated water overflows from the top of the ozone catalytic oxidation tower 17 and enters the effluent monitoring pool 20. The water source is monitored using a multi-parameter online monitoring instrument 20-1. If the water meets the standards, it is discharged; if it does not meet the standards, it is traced back to the ozone catalytic oxidation tower 17.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for deep purification and stable treatment of high-salt, high-phenol wastewater to meet standards, characterized in that, include: Water collection tank (1), level gauge (1-1), corrosion-resistant booster pump (2), mechanical bar screen (3); The water collection tank (1) is divided into two areas: one is a water accumulation area and the other is a pretreatment area. A mechanical bar screen (3) is installed between the two areas. A level gauge (1-1) is installed inside the water accumulation area of ​​the water collection tank (1). The outlet of the water collection tank (1) is connected to the inlet of the horizontal flow oil separator (4). The inlet of the corrosion-resistant booster pump (2) is connected to the inlet pipe of the water collection tank (1). The outlet pipe of the corrosion-resistant booster pump (2) is connected to the inlet end of the mechanical bar screen (3). The mechanical bar screen (3) is connected to the inlet area of ​​the horizontal flow oil separator (4) through a pipe with a certain slope.

2. The equipment for deep purification and stable treatment of high-salt and high-phenol wastewater according to claim 1, characterized in that, The high-salt and high-phenol wastewater deep purification and stable treatment equipment further includes: a horizontal flow oil separator (4), an extraction pretreatment key (6), and a high-efficiency extractor (7). The outlet of the horizontal flow oil separator (4) is connected to the top feed port of the extraction pretreatment key (6) through a pipe. The bottom of the extraction pretreatment key (6) is equipped with a slag discharge pipe. The extraction pretreatment key (6) is equipped with a pH meter inside. The extraction pretreatment key (6) is connected to the high-efficiency extractor (7) through a pipe.

3. The equipment for deep purification and stable treatment of high-salt and high-phenol wastewater according to claim 1, characterized in that, The aforementioned equipment for deep purification and stable treatment of high-salt and high-phenol wastewater also includes: a regulating homogenizing tank (8), a side-entry agitator (8-1), a microporous aerator (8-2), and a Roots blower (9). The homogenizing tank (8) is connected to the high-efficiency extractor (7) via a pipeline. An electric regulating valve is installed on this pipeline. An online pH meter, an ORP meter, and a level gauge are installed inside the homogenizing tank (8). A side-entry agitator (8-1) is installed inside the homogenizing tank (8). The outlet pipeline of the homogenizing tank (8) is connected to the regulating valve (10). A microporous aerator (8-2) is installed at the bottom of the homogenizing tank (8). The side-entry agitator (8-1) is connected to the outlet of the Roots blower (9) via a pipeline. A filter is installed at the inlet of the Roots blower (9). An online pH meter, an ORP meter, and a level gauge are installed inside the homogenizing tank (8).

4. The equipment for deep purification and stable treatment of high-salt and high-phenol wastewater according to claim 1, characterized in that, The high-salt and high-phenol wastewater deep purification and stable compliance treatment equipment further includes: a related reagent dosing component (5), a regulating valve (10), an SMBR biological treatment tank (11), and an aeration control system (12). The regulating valve (10) is connected to the inlet of the SMBR biochemical tank (11). The aeration control system (12) is installed in the SMBR biochemical tank (11). The SMBR biochemical tank (11) is separated into a membrane separation zone (13) by a partition. The associated reagent dosing component (5) is connected to the SMBR biochemical tank (11) by a metering pump.

5. The equipment for deep purification and stable treatment of high-salt and high-phenol wastewater according to claim 1, characterized in that, The aforementioned equipment for deep purification and stable treatment of high-salt and high-phenol wastewater further includes: a membrane separation zone (13), a submerged membrane module (13-1), and a self-priming pump (13-2). The membrane separation zone (13) is equipped with an immersion membrane module (13-1) and a self-priming pump (13-2); the outlet end of the membrane separation zone (13) is connected to the water collection pipe (14).

6. The equipment for deep purification and stable treatment of high-salt and high-phenol wastewater according to claim 1, characterized in that, The aforementioned equipment for deep purification and stable treatment of high-salt and high-phenol wastewater also includes: a water collection pipe (14), a clean water tank (15), and a booster pump (16). The water collection pipe (14) is connected to the inlet end of the clean water tank (15); the clean water tank (15) is connected to the bottom inlet of the ozone catalytic oxidation tower (17) via a booster pump (16).

7. The equipment for deep purification and stable treatment of high-salt and high-phenol wastewater according to claim 1, characterized in that, The high-salt and high-phenol wastewater deep purification and stable compliance treatment equipment further includes: an ozone catalytic oxidation tower (17), a titanium microporous gas distributor (18), a solid catalyst filling layer (19), and an ozone generator (21). The ozone catalytic oxidation tower (17) has a built-in solid catalyst filling layer (19), and a titanium microporous gas distributor (18) is provided at the bottom of the ozone catalytic oxidation tower (17); the titanium microporous gas distributor (18) is connected to the gas outlet of the ozone generator (21); the outlet pipe of the ozone catalytic oxidation tower (17) is connected to the inlet of the effluent monitoring tank (20), and an ozone flow meter and a concentration meter are installed at the bottom of the ozone catalytic oxidation tower (17).

8. The equipment for deep purification and stable treatment of high-salt and high-phenol wastewater according to claim 1, characterized in that, The aforementioned equipment for deep purification and stable treatment of high-salt and high-phenol wastewater also includes: an effluent monitoring tank (20) and a multi-parameter online monitoring instrument (20-1). The sampling point of the multi-parameter online monitoring instrument (20-1) is set at the outlet pipe of the effluent monitoring pool (20); the effluent monitoring pool (20) has two outlets, one connected to the outside and the other connected to the other inlet of the ozone catalytic oxidation tower (17). An ozone tail gas destroyer is installed at the pipe connection between the ozone catalytic oxidation tower (17) and the effluent monitoring pool (20).

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