Energy-saving, carbon-reducing and intelligent integrated system for optimization of coal chemical wastewater treatment

Abstract

The utility model discloses an energy -conserving, carbon -reducing, intelligent integrated system of coal chemical industry wastewater treatment optimization, including high density settling tank, homogenization adjusting pool, high sludge carrier biochemical pool, two sedimentation tanks, intermediate water pool, gas -liquid jet flow aeration filter tank, high density sedimentation tank and monitoring return -used pool, and the inlet of high density settling tank is connected to the sewage of coal gasification device or production device, and the export is connected to homogenization adjusting pool, and the inlet of homogenization adjusting pool is connected to domestic sewage or ground flushing water, and the export is connected to high sludge carrier biochemical pool, and the export of high sludge carrier biochemical pool is connected to two sedimentation tanks, and the supernatant of two sedimentation tanks is connected to intermediate water pool from the self -flowing mouth, and intermediate water pool connects gas -liquid jet flow aeration filter tank, and the export of gas -liquid jet flow aeration filter tank is connected to high density sedimentation tank, and the water outlet of high density settling tank is connected to monitoring return -used pool. The utility model is stable and reliable, and the processing efficiency is high, can reduce the labor intensity of operator, realizes long -period stable standard operation, reaches the purpose that the branch is saved and the benefit is increased.

Description

Technical Field

[0001] This utility model relates to an energy-saving, carbon-reducing, and intelligent integrated system for optimizing the treatment of coal chemical wastewater, belonging to the field of intelligent wastewater treatment. Background Technology

[0002] Currently, the main treatment processes for coal chemical wastewater fall into two categories: pretreatment + sequencing batch reactor (SBR) + advanced treatment, including the traditional SBR process and its improved versions such as ICEAS, DAT-IAT, UNITANK, and MSBR; and nitrification-denitrification activated sludge processes, including anoxic / aerobic denitrification processes, anaerobic / anoxic / aerobic denitrification and phosphorus removal processes - AN / O, A2 / O processes, as well as improved processes such as A2 / O and UCT.

[0003] Investigations revealed that the coal chemical wastewater treatment system exhibited short-sighted practices, prioritizing design over research, equipment over commissioning, and delivery over operation and maintenance. The system failed to verify the functionality of each stage of equipment through pilot-scale and intermediate-scale tests, resulting in the following problems with the wastewater treatment technology and system equipment:

[0004] (1) Pretreatment: The wastewater from coal gasification contains 800-2500 mg / L of calcium and magnesium ions, 120-280 mg / L of silica, 50-250 mg / L of fluoride ions, and 80-150 mg / L of fine ash; high hardness leads to the formation of grime in pipes and equipment, and affects the activity of activated sludge in the biological treatment tank; high silica content makes the membrane of the recycled water treatment easy to clog; fluoride ions exceed 1 mg / L, and long-term consumption of water with fluoride content higher than 1.0 mg / L will seriously affect human health; inorganic fine ash, long-term accumulation affects the capacity of the equalization tank, resulting in high cost of cleaning sludge and greater safety risks; inorganic fine ash accumulation in the activated sludge of the biological treatment tank leads to reduced biological treatment efficiency and ineffective oxygen consumption.

[0005] (2) Control: The composition of coal chemical wastewater is very complex, and the treatment process is long. It is a typical type of wastewater that is difficult to biodegrade. The operation and management of coal chemical wastewater and domestic sewage treatment plants / stations are extremely important. Manual control cannot make timely adjustments. In the pretreatment, the water quality, flow rate, pH fluctuate while the dosage remains unchanged, resulting in fluctuations in water volume and quality. The dosage of the agent cannot be adjusted at any time. The concentration of the agent does not match the water quality. Excessive addition increases consumption, while insufficient addition results in substandard effluent. Liquid level, lifting, stirring, sludge scraper, and dosing device are all factors to consider. The lack of complete interlocking prevented precise control, leading to reduced removal efficiency and unnecessary increased consumption. In the biological treatment process, the lack of interlocking between water quality fluctuations, wastewater flow rate, liquid level, pH fluctuations, DO, online oxidation-reduction potential analyzers, magnetic levitation blowers, reverse digestion circulation pumps, and carbon source dosing devices meant that water quality fluctuations and oxygenation levels and times could not be adjusted in real time. Due to changes in COD and total nitrogen concentrations, the oxygenation level and time could not be adjusted in a timely manner, resulting in problems such as the shock death of activated sludge bacteria in the biological treatment tank, the growth of filamentous bacteria, sludge bulking, and substandard treatment.

[0006] (3) Biochemical processes in coal chemical / industrial wastewater treatment plants / stations: Sequencing batch activated sludge process with anoxic / aerobic denitrification, nitrification-denitrification activated sludge process, including anoxic / aerobic denitrification process, anaerobic / anoxic / aerobic denitrification and phosphorus removal process - AN / O, A2 / O process, as well as improved A2 / O, UCT and other processes, all belong to activated sludge process. During the wastewater treatment process, it is affected by water quality concentration fluctuations, toxic substances, oxygen supply, biological bacteria metabolism, filamentous bacteria expansion, high water temperature in summer, etc., which leads to a large amount of sludge loss, reduced treatment efficiency, and in severe cases, it is impossible to maintain the normal operation of biochemical treatment.

[0007] (4) Coal chemical / industrial wastewater treatment plants / stations, in summer, due to the high temperature of incoming water and the high ambient temperature, the operating water temperature of the biochemical tank exceeds 40℃, which leads to the inhibition of the growth of biological bacteria in the activated sludge tank, the biochemical treatment efficiency gradually decreases, or even paralyzes; the treated water volume gradually decreases, affecting normal treatment or exceeding the discharge standard.

[0008] (5) Fluctuations in water quality during the operation of biochemical activated sludge treatment tanks can cause the activated sludge tanks to inhibit the growth of microorganisms and cause the microorganisms to die due to load shocks; the DO value, pH value and influent volume cannot be adjusted in a timely manner; resulting in a gradual decrease in the amount of treated water, affecting normal treatment or causing the discharge to exceed the standard.

[0009] (6) In order to improve the efficiency of the biological treatment tank, the sludge concentration must be increased, which leads to sludge swelling and the generation of filamentous bacteria. The general aeration equipment on the market does not have oxygenation / stirring / cutting functions, which affects normal operation.

[0010] (7) The biochemical activated sludge treatment tank is not equipped with online instrument control, and cannot provide timely feedback on sludge concentration, temperature, pH value, etc., and cannot optimize the sewage treatment operation process through feedback information to ensure the stable operation of the system.

[0011] (8) Wastewater pretreatment and biochemical treatment technologies do not consider wastewater reduction. While improving treatment efficiency, they cannot minimize the amount of sludge generated. Utility Model Content

[0012] The purpose of this invention is to provide an optimized energy-saving, carbon-reducing, and intelligent integrated system for treating coal chemical wastewater, achieving stable compliance with standards, intelligent operation and control, high efficiency and energy saving, carbon reduction and efficiency improvement in wastewater treatment, and it can be widely applied to the treatment of coal chemical / industrial wastewater.

[0013] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0014] An optimized, energy-saving, carbon-reducing, and intelligent integrated system for treating coal chemical wastewater includes a high-density settling tank, a homogenization and equalization tank, a high-sludge carrier biological treatment tank, a secondary settling tank, an intermediate water tank, a gas-liquid jet aeration filter, a high-density sedimentation tank, and a monitoring and reuse tank.

[0015] The high-density settling tank has its inlet connected to wastewater from a coal gasification unit or production unit, and its outlet connected to a homogenization equalization tank. The homogenization equalization tank has its inlet connected to domestic sewage or surface flushing water, and its outlet connected to a high-sludge carrier biological treatment tank via a lift pump. The outlet of the high-sludge carrier biological treatment tank is connected to a secondary settling tank. The secondary settling tank is equipped with a supernatant gravity flow outlet connected to an intermediate water tank. The intermediate water tank is connected to a gas-liquid jet aeration filter via a lift pump. The upper liquid outlet of the gas-liquid jet aeration filter is connected to a high-density sedimentation tank. The outlet of the high-density settling tank is connected to a monitoring and reuse tank.

[0016] Furthermore, the system also includes a sludge collection tank for collecting sludge from the high-density settling tank, high-density sedimentation tank and secondary settling tank. The sludge collection tank is equipped with a sludge lift pump, the outlet of which is connected to a sludge dewatering machine.

[0017] Furthermore, the inlet of the equalization tank is equipped with a bar screen separation device, which is used to separate suspended solids in the sewage and is connected to the equalization tank through a sewage pipe.

[0018] Furthermore, an online monitoring instrument is installed in the inlet ditch at the front end of the homogenization equalization tank. The online monitoring instrument is used to monitor the COD and ammonia nitrogen content and control the opening and closing of the inlet valve of the homogenization equalization tank and the bypass valve of the emergency tank.

[0019] Furthermore, the high sludge carrier biochemical tank is equipped with a vortex microparticle separation device, a disc jet aerator, a magnetic levitation blower, and a circulating pump.

[0020] Furthermore, the cyclone microparticle separation device is equipped with pulse airlift for cyclic separation of organic bacteria. The pulse airlift is installed in the high sludge carrier biological treatment tank. The outlet of the pulse airlift is connected to the inlet of the cyclone microparticle separation device. The lower part of the cyclone microparticle separation device is conical, with an inlet on the side end and the inlet direction is tangent to the inner wall. The bottom has an outlet for heavy phase granular organic bacteria, and the top has an outlet for light phase inorganic sludge. The inorganic sludge outlet is connected to a buffer tank through a pipeline, and the outlet of the buffer tank is connected to a sludge collection tank through a pipeline.

[0021] Furthermore, the high sludge carrier biological treatment tank is equipped with an online detector for DO, pH and ORP. This detector is interlocked with an automatic dosing device, a magnetic levitation fan and a circulating pump to regulate DO and pH values ​​in real time, and to control the dissolved oxygen and re-digestion dissolved oxygen required for the degradation of organic matter and ammonia nitrogen.

[0022] Furthermore, the gas-liquid jet aeration filter is equipped with an anti-clogging gas-liquid distributor. Filter media is filled above the anti-clogging gas-liquid distributor, and a filter plate and filter cap are provided below it. The filter plate is located above the bottom of the filter tank, and an inlet is opened on the side wall of the filter tank located below the filter plate.

[0023] Furthermore, the anti-clogging gas-liquid distributor is connected to the jet throat, the jet throat is vertically arranged and a gas-liquid jet mixer is provided above it, the air inlet of the gas-liquid jet mixer is connected to a blower, the liquid inlet is connected to a jet circulation pump, and the liquid inlet pipe of the jet circulation pump is connected to the bottom of the gas-liquid jet aeration filter.

[0024] The beneficial effects of this utility model are as follows:

[0025] (1) The system is stable and reliable with high processing efficiency; it can reduce the labor intensity of operators, achieve long-term stable operation, and achieve the goal of saving costs and increasing efficiency.

[0026] (2) Coal chemical wastewater contains high levels of calcium and magnesium ions, silicon, fluorine, inorganic fine ash, and phosphorus. Without treatment, these ions and inorganic fine ash will inevitably cause fouling of pipelines and equipment. Long-term accumulation of fine ash will affect the capacity of the equalization tank, leading to difficulties in maintenance, high costs for cleaning sludge, high labor costs, and significant safety risks. This system uses multi-stage reaction + high-efficiency sedimentation technology for pretreatment to remove calcium and magnesium ions, silicon, fluorine, inorganic fine ash, and phosphorus simultaneously. After treatment, calcium and magnesium ions are less than 700 mg / L, silicon is less than 30 mg / L, fluorine is less than 1 mg / L, inorganic fine ash is less than 30 mg / L, and phosphorus is less than 0.5 mg / L. This solves the fouling problem of pipelines and equipment, meets the requirements for deep treatment of silicon and fluorine, and also reduces inorganic sludge in activated sludge, thereby improving the efficiency of subsequent biochemical treatment and reducing energy consumption by 10%.

[0027] (3) The front end of the equalization tank is designed with a ditch and artificial intelligence-online COD and ammonia nitrogen monitoring to accurately detect water quality fluctuations. If the water quality exceeds the upper limit of the design value, it will automatically switch to the emergency tank to ensure that the high sludge carrier biochemical treatment facility operates stably under normal working conditions; and avoid water quality fluctuations causing biological bacteria in the biochemical treatment tank to be impacted, die, or fail to meet treatment standards.

[0028] (4) It overcomes the problems of biological bacteria metabolism, sludge swelling and aging in long-term operation of biochemical activated sludge. By applying integrated technology, it screens slow-growing plant bacteria, prevents fast-growing bacteria from dominating, accumulates and safely retains a certain amount of plant bacteria, and eliminates aging bacteria, metabolic bacteria and dead sludge, thereby improving the biochemical treatment efficiency by 10%.

[0029] (5) It can realize precise interlocking automatic control, realize the interlocking of aeration DO value and blower air supply at each stage, effectively control the dissolved oxygen required for degradation of organic matter and ammonia nitrogen, and save 10% of power consumption. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the system structure of this utility model;

[0031] Figure 2 This is a schematic diagram of a cyclone separation device for microparticles;

[0032] Figure 3 This is a schematic diagram of a gas-liquid jet aeration filter.

[0033] The diagram is labeled as follows: 1-High-density settling tank, 2-Sludge pump, 3-Magnetic levitation blower, 4-Homogeneous equalization tank, 5-Rotary bar screen separator, 6-First lift pump, 7-High sludge carrier biological treatment tank, 8-Butterfly jet aerator, 9-Jet circulation pump, 10-Swirl separator for microparticles, 101-Swirl inlet, 102-Dense phase outlet, 103-Light phase outlet, 104-Buffer tank, 11-Secondary settling tank, 12-Pulse airlift device, 1 3-Intermediate water tank, 14-Second lift pump, 15-Gas-liquid jet aeration filter, 1501-Filter body, 1502-Gas-liquid jet mixer, 1503-Anti-clogging gas-liquid distributor, 1504-Filter plate, 1505-Drainage filter cap, 1506-Filter media, 1507-Water distribution pipe, 1508-Jet pump, 16-High-density sedimentation tank, 17-Monitoring and reuse tank, 18-Sludge collection tank, 19-Sludge lift pump, 20-Sludge dewatering machine. Detailed Implementation

[0034] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0035] like Figure 1An energy-saving, carbon-reducing, and intelligent integrated system for optimizing coal chemical wastewater treatment includes a high-density settling tank 1, a homogenization tank 4, a high-sludge carrier biochemical tank 7, a secondary settling tank 11, an intermediate water tank 13, a gas-liquid jet aeration filter 15, a high-density sedimentation tank 16, a monitoring and reuse tank 17, and a sludge collection tank 18. The inlet of the high-density settling tank 1 is connected to wastewater from a coal gasification unit or production unit, and the outlet is connected to the homogenization tank 4. The inlet of the homogenization tank 4 is connected to domestic sewage or surface flushing water, and the outlet is connected to the high-sludge carrier biochemical tank 7 via a lift pump. The outlet of the high-sludge carrier biochemical tank 7 is connected to the secondary settling tank 11. The secondary settling tank 11 is equipped with a supernatant gravity-flow outlet connected to the intermediate water tank 13. The intermediate water tank 13 is connected to the gas-liquid jet aeration filter 15 via a lift pump. The upper liquid outlet of the gas-liquid jet aeration filter 15 is connected to the high-density sedimentation tank 16, and the outlet of the high-density sedimentation tank 16 is connected to the monitoring and reuse tank 17. The sludge collection tank 18 is used to collect sludge from the high-density settling tank 1, the high-density sedimentation tank 16 and the secondary settling tank 11. The sludge collection tank is equipped with a sludge lift pump 19, the outlet of which is connected to a sludge dewatering machine 20.

[0036] In this embodiment, a bar screen separation device 5 is installed at the inlet of the equalization tank 4. The bar screen separation device 5 is used to separate suspended solids in the sewage and is connected to the equalization tank 4 through a sewage pipeline. An online monitoring instrument is installed in the inlet ditch at the front end of the equalization tank 4. The online monitoring instrument is used to monitor the COD and ammonia nitrogen content and control the opening and closing of the equalization tank inlet valve and the emergency tank bypass valve. If the water quality exceeds the upper limit of the design value, it will automatically switch to the emergency tank to ensure that the high sludge carrier biological treatment operates stably under normal conditions and to solve the impact of water quality fluctuations on the biological bacteria in the biological treatment tank.

[0037] In this embodiment, the high sludge carrier biological treatment tank 7 is equipped with a vortex microparticle separator 10, a disc jet aerator 8, a magnetic levitation blower 3, and a jet circulation pump 9. The vortex microparticle separator 10 is equipped with a pulse airlift for circulating separation of organic bacteria. The pulse airlift is located within the high sludge carrier biological treatment tank, and its outlet is connected to the inlet of the vortex microparticle separator 10. Figure 2 The lower middle part of the cyclone microparticle separation device 10 is conical, with an inlet on the side end and the inlet direction is tangent to the inner wall. The bottom is provided with a heavy phase granular organic bacteria outlet, and the top is provided with a light phase inorganic sludge outlet. The inorganic sludge outlet is connected to a buffer tank through a pipeline, and the outlet of the buffer tank is connected to a sludge collection tank through a pipeline.

[0038] The working principle of the cyclone separator: Granular activated sludge (≥3mm), aging bacteria, light, loose, fine, and suspended particles after pre-treatment are lifted to the cyclone inlet 101. The feed is tangential. The mixed fluid (containing suspended particles or fluids of different densities) then enters the upper part of the cyclone separator tangentially under pressure. Heavy phase / large particle organic bacteria are thrown against the wall of the cyclone separator under strong centrifugal force and move downwards with the cyclone to the bottom outlet for discharge. Light, loose, fine, and suspended particles are thrown upwards by centrifugal force and pass through pipes to a buffer tank. The bottom of the buffer tank has a sludge outlet, which discharges into a sludge collection tank. This cyclone separation screens out slow-growing plant bacteria, preventing rapidly growing bacteria from dominating and accumulating and safely retaining a certain amount of plant bacteria. The hydrocyclone separation eliminates aging bacteria, metabolic bacteria, and dead sludge, thereby improving the biochemical treatment efficiency by 10%.

[0039] In this embodiment, the high-sludge carrier biochemical tank 7 is equipped with an online detector for DO, pH, and ORP. This detector is interlocked with the automatic dosing device, magnetic levitation blower 3, and circulating pump to regulate DO and pH values ​​in real time, controlling the dissolved oxygen required for the degradation of organic matter and ammonia nitrogen. The biochemical tank utilizes online DO, pH, and oxidation potential to precisely control DO and pH values ​​in real time when water quality and quantity fluctuate. This ensures timely automatic adjustment of DO and alkali solutions in response to changes in water quality and deterioration, solving the problem of interlocking aeration volume with blower air supply at each stage of the biochemical tank. This effectively controls the dissolved oxygen required for the degradation of organic matter and ammonia nitrogen, achieving energy savings of 10%. Simultaneously, a high-efficiency disc jet aerator 8 is used, which has both oxygenation and stirring functions. This optimizes the technical problems of hydraulic flow resistance and impact energy loss, enhances hydraulic compression and propulsion, increases nozzle flow rate, gas, liquid, and solid mixing rate, improves diffusion capacity and diffusion area, and increases oxygenation efficiency by 15%. Furthermore, due to the jet cutting and diffusion principle, it inhibits the growth of filamentous bacteria and prevents sludge bulking. Compared with centrifugal blowers, the energy-saving magnetic levitation blower 3 can save 30% of the installed power.

[0040] In this embodiment, as Figure 3 The gas-liquid jet aeration filter 15 is equipped with an anti-clogging gas-liquid distributor 1503. Filter media 1506 is filled above the anti-clogging gas-liquid distributor 1503, and a filter plate 1054 is located below it. The filter plate 1504 is also positioned above the bottom of the filter tank. An inlet is opened on the side wall of the filter tank below the filter plate 1504. The anti-clogging gas-liquid distributor 1503 is connected to a water distribution pipe 1507. The water distribution pipe 1507 is vertically arranged, and a gas-liquid jet mixer 1502 is located above it. The air inlet of the gas-liquid jet mixer 1502 is connected to a blower, and the liquid inlet is connected to a jet circulation pump 1508. The liquid inlet pipe of the jet circulation pump 1508 is connected to the bottom of the gas-liquid jet aeration filter tank.

[0041] Working principle of the gas-liquid mixing jet aeration filter: Wastewater enters from the bottom inlet of the aeration filter and rises evenly to the filter plate 1507 through the water distribution pipe. The filter plate 1507 has holes according to the inlet and backwash water flow rates. Wastewater is discharged through the drain filter cap 1505 on the filter plate. An anti-clogging gas-liquid distributor 1503 is installed above the filter cap. The mixed gas and liquid from the gas-liquid mixing jet 1502 is used to oxygenate and aerate the filter media layer through the anti-clogging gas-liquid distributor 1503. The air source of the gas-liquid mixing jet 1502 comes from the blower and circulating water. The mixed wastewater at the bottom of the aeration filter is lifted to the gas-liquid mixing jet 1502 by the jet circulation pump 1508. In this way, the wastewater passes through the filter plate, filter cap, gas-liquid distributor, and filter media layer to the water collection tank and is then discharged. The filter media layer has a high concentration of bacteria that degrade organic matter and ammonia nitrogen, effectively solving problems such as easy clogging, short flow, uneven aeration, and low oxygenation efficiency in traditional biological filters. This expands the application range and provides a reliable guarantee for the deep treatment of municipal and industrial wastewater.

[0042] The optimized energy-saving, carbon-reduction, and intelligent integrated system for treating coal chemical wastewater has the following treatment process:

[0043] (1) Wastewater from the coal gasification unit or production unit is transported to the high-density settling tank via pipeline in the unit area. After settling and reaction in the high-density settling tank, it is sent to the homogenization and equalization tank.

[0044] (2) Domestic sewage and ground flushing water are collected in the water tank and pumped to the rotary bar separator. The rotary bar separator separates the suspended solids in the sewage. Then the sewage enters the equalization tank through the pipeline, and the suspended solids are discharged into the sludge collection tank through the pipeline.

[0045] (3) After the equalization tank receives various collected sewage, the sewage is then pumped into the high sludge carrier biochemical tank by the sewage lifting pump. Organic bacteria are separated in the sludge carrier biochemical tank and then sent to the secondary sedimentation tank. After sedimentation in the secondary sedimentation tank, the supernatant flows by gravity to the intermediate water tank. The secondary sedimentation tank is equipped with pulse air lifting for sludge back digestion and discharge.

[0046] (4) Wastewater in the intermediate pool is pumped to the gas-liquid jet aeration filter by a lift pump. The effluent from the gas-liquid jet aeration filter flows by gravity to the high-density sedimentation tank. The effluent from the high-density sedimentation tank flows by gravity to the monitoring and reuse tank.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that the above embodiments do not limit the scope of protection of this utility model in any way, and all technical solutions obtained by equivalent substitution or other means fall within the scope of protection of this utility model. Parts not covered by this utility model are the same as or can be implemented using existing technology.

Claims

1. An optimized energy-saving, carbon-reducing, and intelligent integrated system for treating coal chemical wastewater, characterized in that: It includes a high-density settling tank, a homogenization and equalization tank, a high-sludge carrier biological treatment tank, a secondary settling tank, an intermediate water tank, a gas-liquid jet aeration filter, a high-density sedimentation tank, and a monitoring and reuse tank. The high-density settling tank has its inlet connected to wastewater from a coal gasification unit or production unit, and its outlet connected to a homogenization equalization tank. The homogenization equalization tank has its inlet connected to domestic sewage or surface flushing water, and its outlet connected to a high-sludge carrier biological treatment tank via a lift pump. The outlet of the high-sludge carrier biological treatment tank is connected to a secondary settling tank. The secondary settling tank is equipped with a supernatant gravity flow outlet connected to an intermediate water tank. The intermediate water tank is connected to a gas-liquid jet aeration filter via a lift pump. The upper liquid outlet of the gas-liquid jet aeration filter is connected to a high-density sedimentation tank. The outlet of the high-density settling tank is connected to a monitoring and reuse tank.

2. The energy-saving, carbon-reducing, and intelligent integrated system for optimizing coal chemical wastewater treatment according to claim 1, characterized in that, The system also includes a sludge collection tank for collecting sludge from the high-density settling tank, high-density sedimentation tank and secondary settling tank. The sludge collection tank is equipped with a sludge lift pump, the outlet of which is connected to a sludge dewatering machine.

3. The energy-saving, carbon-reducing, and intelligent integrated system for optimizing coal chemical wastewater treatment according to claim 1, characterized in that, The inlet of the equalization tank is equipped with a bar screen separation device, which is used to separate floating and suspended solids in the sewage and is connected to the equalization tank through a sewage pipe.

4. The energy-saving, carbon-reducing, and intelligent integrated system for optimizing coal chemical wastewater treatment according to claim 1, characterized in that, An online monitoring instrument is installed in the inlet ditch at the front end of the homogenization equalization tank. The online monitoring instrument is used to monitor the COD and ammonia nitrogen content and control the opening and closing of the inlet valve of the homogenization equalization tank and the bypass valve of the emergency tank.

5. The energy-saving, carbon-reducing, and intelligent integrated system for optimizing coal chemical wastewater treatment according to claim 1, characterized in that, The high sludge carrier biochemical tank is equipped with a vortex microparticle separation device, a disc jet aerator, a magnetic levitation blower, and a circulation pump.

6. The energy-saving, carbon-reducing, and intelligent integrated system for optimizing coal chemical wastewater treatment according to claim 5, characterized in that, The cyclone microparticle separator is equipped with a pulse airlift for circulating separation of organic bacteria. The pulse airlift is installed in a high sludge carrier biochemical tank. The outlet of the pulse airlift is connected to the inlet of the cyclone microparticle separator. The lower part of the cyclone microparticle separator is conical, with an inlet on the side and the inlet direction is tangent to the inner wall. The bottom has an outlet for heavy phase granular organic bacteria, and the top has an outlet for light phase inorganic sludge. The inorganic sludge outlet is connected to a buffer tank through a pipeline, and the outlet of the buffer tank is connected to a sludge collection tank through a pipeline.

7. The energy-saving, carbon-reducing, and intelligent integrated system for optimizing coal chemical wastewater treatment according to claim 5, characterized in that, The high sludge carrier biochemical tank is equipped with an online detector for DO, pH and ORP. This detector is interlocked with an automatic dosing device, a magnetic levitation fan and a circulating pump to regulate DO and pH values ​​in real time and control the dissolved oxygen required for the degradation of organic matter and ammonia nitrogen.

8. The energy-saving, carbon-reducing, and intelligent integrated system for optimizing coal chemical wastewater treatment according to claim 1, characterized in that, The gas-liquid jet aeration filter is equipped with an anti-clogging gas-liquid distributor. Filter media is filled above the anti-clogging gas-liquid distributor, and a filter plate and filter cap are provided below it. The filter plate is also located above the bottom of the filter tank, and an inlet is opened on the side wall of the filter tank located below the filter plate.

9. The energy-saving, carbon-reducing, and intelligent integrated system for optimizing coal chemical wastewater treatment according to claim 8, characterized in that, The anti-clogging gas-liquid distributor is connected to the jet throat, which is vertically arranged and has a gas-liquid jet mixer above it. The air inlet of the gas-liquid jet mixer is connected to a blower, and the liquid inlet is connected to a jet circulation pump. The liquid inlet pipe of the jet circulation pump is connected to the bottom of the gas-liquid jet aeration filter.

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