54 results about "Sewage farm" patented technology

The invention provides a rural sewage treatment simulation optimization method based on a cellular automaton, which comprises the following steps of: establishing a cellular grid, and defining basic attributes of cells according to space coordinates, terrain types, population density and sewage treatment capacity; according to the sewage treatment scene, respectively establishing a cellular state evolution rule base; the sewage treatment scene comprises a pipe network collection type, an ecological wetland type and a decentralized recycling type; acquiring environmental parameters and pollutant parameters of a target area to be subjected to sewage treatment; selecting a cellular state evolution rule base according to input environmental parameters and pollutant parameters of a target area to be subjected to sewage treatment; and performing sewage treatment simulation, optimizing the sewage treatment simulation process by the cellular state evolution rule base, and outputting a sewage treatment facility layout scheme and a dynamic control strategy. The sewage treatment scheme can be quickly generated, the optimal sewage treatment scene model is automatically selected according to actual conditions, and accurate customization of the sewage treatment scheme is realized.

The invention provides a segmentation threshold self-generation alumen ustum detection method and system based on a convolutional neural network, and the method comprises the following steps: constructing an algorithm model of a specific convolutional structure, dividing the operations of convolution, ReLU activation, pooling and the like into one layer, sequentially passing through three layers, and finally obtaining four thresholds after adaptive average pooling, flattening and linear transformation, an optimal binarization threshold value is screened out; high-speed cameras are deployed at multiple angles of the sewage treatment pool to collect multidirectional alumen ustum images, the algorithm carried by the upper computer is input, binarization processing is conducted on the input images through the optimal threshold value output by the algorithm, and the binarized alumen ustum images are output. According to the method, the alumen ustum image can be efficiently processed, an accurate binary image is provided for alumen ustum state analysis in the sewage treatment process, and the requirements of image recognition and processing in a sewage treatment scene are met.

The invention discloses a wastewater treatment system and method for strengthening a biochemical coupling phycomycete fixed bed. According to the invention, the phycomycete immobilized rubber balls are combined with the multi-stage biological rope reactor, so that staged directional removal of pollutants is realized. The system comprises adsorption-embedding co-immobilization phycomycete gel balls, an active fiber biological rope carrier and a multi-stage baffling reaction unit. According to the rubber ball, a MgAl-LDO and zeolite composite material is used for embedding bacteria and algae, and a biological rope carrier is used for fixing microorganisms to form an anoxic-aerobic dynamic environment. According to the system, the removal effects of NH4 < + >-N, TP, COD and NO3-N are improved to different degrees, and the system is high in anti-interference performance and particularly suitable for aquaculture wastewater, low-C / N-ratio wastewater and decentralized sewage treatment scenes.

According to the steel pipe cleaning system and method, a pre-cleaning module is used for pre-cleaning a steel pipe so as to remove large impurities on the inner surface and the outer surface of the steel pipe, then a fine cleaning module is used for finely cleaning the inside and the outside of the steel pipe so as to remove oil stains inside and outside the steel pipe, and the steel pipe is subjected to oil immersion protection and drying; the polluted cleaning liquid which cannot be used can be concentrated through the cleaning liquid treatment module to separate distilled water and cleaning concentrated liquid, the distilled water can be recycled, and the cleaning concentrated liquid is intensively transported to a sewage treatment plant through a barrel to be treated. In the cleaning process, cleaning liquid used by the pre-cleaning module is filtered cleaning liquid used by the fine cleaning module, the consumption of the cleaning liquid can be reduced, the polluted cleaning liquid is concentrated, the transportation cost can be reduced, the consumption of the cleaning liquid in the whole cleaning process is obviously reduced, and the processing cost is obviously reduced.

The utility model relates to sewage treatment equipment technical field, concretely disclose a kind of self-cleaning sewage treatment equipment, including bottom plate, the upper end surface of the bottom plate is fixedly connected with filter box, the inside of the filter box is movably provided with filter plate, the upper end surface of the bottom plate is provided with cleaning mechanism;The cleaning mechanism includes two support plates fixedly connected to the upper end surface of bottom plate, two The inside of the support plate is rotatably connected with two shafts, the opposite side of four The shaft is fixedly connected with sprocket, the outer wall of two sprocket located in the same side is all engaged with chain, and the automatic lifting and overturning of filter plate are realized by the cooperation of chain transmission mechanism and servo motor, reverse flushing is carried out to filter plate in combination with high-pressure spray system, and impurity removal efficiency is significantly improved;Meanwhile, the scraper synchronously scrapes the adherend on the inner wall of filter box when filter plate moves, realizes overall cleaning.The design greatly reduces the demand of manual intervention, reduces labor intensity, especially suitable for continuous sewage treatment scene.

The utility model relates to sewage treatment equipment technical field, specifically is a kind of sewage purification treatment pool, including sedimentation tank, the inside of sedimentation tank is equipped with multiple baffle, the both sides of the top of sedimentation tank are equipped with multiple through-hole, the both sides of the top of baffle are equipped with a bolt, two the bolt is respectively threaded in two through-holes, the nut is threadedly connected on the bolt, the position of baffle near top is provided with opening, two recesses are provided on the baffle, the bolt is engaged with adjacent recess, and the outside of baffle and the inside of sedimentation tank are in contact;The position and quantity of baffle can be flexibly adjusted to facilitate to cope with the diversified sewage treatment scene, improve the applicability and economy of equipment.

The invention discloses a sewage filtration treatment method, which belongs to the field of sewage treatment, and comprises a pretreatment stage, a composite membrane filtration stage, an advanced oxidation-adsorption coupling filtration stage, a deep purification stage and a resource recovery stage, and is characterized in that suspended particulate matters and part of organic matters are removed by adjusting the pH value of sewage and adding a modified diatomite adsorbent; carrying out pressure filtration through a three-stage composite membrane assembly to obtain a primary filtrate; then, a ferrous ion-sodium persulfate-ozone-ultraviolet synergistic oxidation process is adopted, coupling filtration is achieved in combination with a double-layer modified activated carbon filter layer, and then deep purification is completed through ion exchange and ultraviolet disinfection. According to the sewage filtering treatment method, adsorption, filtering and advanced oxidation technologies are efficiently coupled, the treatment effect and the resource utilization rate are considered, operation is easy and convenient, running is stable, the content of COD, suspended particulate matter and ionic pollutants in sewage can be effectively reduced, and the sewage filtering treatment method is suitable for various industrial and domestic sewage treatment scenes.

The utility model discloses a grillage machine for sewage treatment, which belongs to the technical field of grillage machines and comprises a base, the outer surface of the base is rotatably connected with a support plate, the outer surface of the support plate is fixedly connected with a mounting frame, the outer surface of the mounting frame is fixedly connected with a feed hopper, the outer surface of the support plate is fixedly connected with a discharge port, and the discharge port is fixedly connected with a discharge port. The angle adjusting assembly is located on the outer surface of the base and used for adjusting the inclination angle of the mounting frame, an adapter plate is pushed to move through an air cylinder in the angle adjusting assembly, then a supporting plate is driven to rotate, and accurate adjustment of the inclination angle of the mounting frame is achieved; the angle of the grillage machine can be flexibly adjusted according to different sewage treatment scenes and site conditions, the adaptability of equipment to various working conditions is improved, the interception and conveying efficiency of solid impurities in sewage is improved due to the proper inclination angle, it is ensured that the grillage machine can play the best performance under different conditions, and the sewage treatment effect is improved.

This utility model relates to the field of integrated pump station technology, and in particular to an integrated pump station debris interception and silt prevention device. It includes a cylindrical body, which is fixedly installed on the top surface of a concrete foundation. An inlet V-shaped wall is fixedly connected to the outer wall of the cylindrical body. A debris trap is provided inside the inlet V-shaped wall, and the debris trap is connected to one end of an inlet pipe. The outer wall of the inlet pipe is fixedly connected to the inner wall of the cylindrical body. A debris trap is placed on the lower surface of the cylindrical body. A submersible sewage pump is fixedly installed on the side wall of the cylindrical body via a pump body bracket. The submersible sewage pump is connected to the cylindrical body and a pressure pipeline via a coupling base. This device, by adding a debris trap at the inlet, filters out garbage and silt in the water, preventing pump blockage and equipment damage, reducing maintenance costs, and further improving the service life of the equipment and the pump's lifting efficiency. It is suitable for various sewage treatment scenarios, is easy to maintain, and has a long service life.

The invention discloses a low-carbon sewage treatment system and method. The low-carbon sewage treatment system comprises a reaction tank, an aeration assembly, a liftable multifunctional bin, a multifunctional bin driving assembly and a distribution box, the method of the low-carbon sewage treatment system comprises the steps of water feeding, aeration, static settlement, synergistic reinforcement of the liftable multifunctional bin, water drainage and the like. According to the low-carbon sewage treatment system and method, sequencing batch operation is combined with multiple effects of plants and the multifunctional bin; and low-energy-consumption efficient denitrification and deep purification are realized. The device is suitable for small-scale sewage treatment scenes such as rural areas and scenic spots, and has the advantages of simple structure, energy conservation, attractive appearance, high efficiency, simplicity and convenience in maintenance, low investment and the like.

The application discloses a filtering mechanism for sewage treatment and belongs to the technical field of sewage treatment, which comprises a shell, a filter screen, an impeller, a filter plate and a cleaning assembly. An inlet pipe is arranged on the outer wall of the shell and is communicated with an external water supply system. The filter screen is arranged in the inlet pipe. The impeller is arranged in the shell and rotates relative to the shell by the sewage output by the inlet pipe. A liquid outlet is formed in the bottom of the shell. The impeller is in transmission connection with the cleaning assembly. The filter plate is arranged opposite to the liquid outlet. The flowing kinetic energy of the sewage flowing into the tank is utilized to drive the cleaning assembly, and the impurities on the filter plate are cleaned. The overall structure is simplified, the automatic cleaning of the filter plate can be realized without an external power source, the operation and maintenance cost and the labor intensity of workers are remarkably reduced, the sewage treatment process is not interrupted when the filter plate is cleaned, the sewage treatment efficiency is improved, and the filtering mechanism is especially suitable for remote areas or unstable power supply sewage treatment scenes.

The application provides a rainwater monitoring pool and an accident water pool combined system, which comprises a rainwater monitoring pool, a multi-grid accident water pool and an accident water lifting pool; a rainwater lifting pump is arranged in the rainwater monitoring pool, an outlet of the rainwater lifting pump is provided with two pipelines, the two pipelines are respectively connected with an off-site rainwater system and the accident water pool, online water quality detection is arranged in the rainwater monitoring pool, an electric gate is arranged between each accident water pool and the rainwater lifting pool, an accident water lifting pump is arranged in the accident water lifting pool, an outlet of the accident water lifting pump is provided with two pipelines, the two pipelines are respectively connected with a sewage treatment plant and an accident water diversion pool. The system automatically detects rainwater of the rainwater pool, directly lifts qualified and clean rainwater to off-site, lifts unqualified rainwater to the accident water pool for temporary storage, and then lifts the unqualified rainwater to the sewage treatment plant for treatment; the accident water pool is divided into grids, and the volume of the first grid is not more than 1 / 3 of the total effective volume of the accident water pool.

The utility model discloses a water supply and drainage pipeline connecting device, and relates to the technical field of drainage pipe networks, the water supply and drainage pipeline connecting device comprises a box body, the bottom of the box body is fixedly provided with a base, the box body is internally provided with a hold-down assembly, and the inner side of the hold-down assembly is provided with two groups of butt joint pipes in a hold-down manner; a limiting shell is arranged on the front face of the box and is in through connection with the front face of the box, an electric rod is fixedly connected to the bottom of the limiting shell, and the output end of the electric rod penetrates through the limiting shell and is fixedly connected with a rack rod. The electric rod runs to drive the rack rod to move, the rack rod drives the meshed fluted disc rod to rotate, the fluted disc rod drives the ball valve to intercept fluid in the connecting pipe, the emergency treatment function is achieved, and the problems that a water source leaks into the surrounding environment through the connecting position of the drainage pipe, and consequently the water source leaks, and normal operation of a sewage treatment plant is affected are solved.

The invention discloses a mechanical assistant intelligent auxiliary system for sewage treatment dosing, and relates to the technical field of intelligent control, the mechanical assistant intelligent auxiliary system comprises a construction module, a simulation module and an optimization module, conversion is carried out to obtain key coordinates, operation parameters are set, sewage treatment is simulated, the operation parameters are subjected to first regulation and control, and a first mapping relation is constructed; and performing power utilization simulation, and selecting an optimal track. The key points of the mechanical arm are subjected to coordinate representation through the construction module, high-precision chemical adding operation can be achieved, chemical adding operation can be automatically completed according to the simulation result and the optimized track, chemical adding efficiency is improved, operation parameters are regulated and controlled through the simulation result, chemical waste is avoided, the optimal track is selected through electricity utilization simulation, and chemical adding efficiency is improved. The operation cost is reduced, the operation parameters are automatically adjusted according to different sewage parameters and working conditions, the system adapts to various complex sewage treatment scenes, and the health of operators can be effectively protected.

The invention discloses a waste plastic ardealite steel slag environment-friendly material as well as a preparation method and application thereof. The environment-friendly material comprises the following raw materials in parts by weight: 40-70 parts of waste plastic; 30 to 40 parts of phosphogypsum; 15 to 30 parts of steel slag powder; and 5-10 parts of a modifier. According to the waste plastic, ardealite and steel slag environment-friendly material provided by the invention, the waste plastic, the ardealite and the steel slag powder are used as main raw materials, three types of bulk pollutants are efficiently treated, and through the combination of the flexible matrix and the rigid filler, the material has the characteristics of good toughness, sufficient strength and durability at the same time; and the use requirements of breeding and sewage treatment scenes such as a manure leakage plate and a sewage storage tank are just met.

The utility model provides rural sewage treatment equipment. The rural sewage treatment equipment comprises an anaerobic tank, an aerobic tank and a sedimentation tank, a water inlet pipeline of the anaerobic tank extends to the bottom of the anaerobic tank, outlet water of the anaerobic tank enters the aerobic tank through an overflow pipe, the overflow pipe is arranged at an inclined upward angle, and a protruding part of the overflow pipe is positioned in the aerobic tank; and the sedimentation tank is a vertical flow type sedimentation tank. The equipment does not need mechanical stirring, is low in energy consumption and simple to maintain, and is suitable for small rural sewage treatment scenes.

The utility model relates to a dosing device for sewage treatment. Comprising a base, a liquid medicine box is installed on the base, a powder supply assembly and a stirring assembly are installed on the top wall of the liquid medicine box, a water source supplementing assembly is installed on the side wall of the liquid medicine box, and a medicine adding assembly is installed on the base and the side portion of the liquid medicine box; the powder supply assembly comprises a powder supply box internally provided with a transverse conveying auger and a powder supply motor for driving the conveying auger, a powder hopper with a vibration motor on the side part is mounted at the top of the powder supply box, a powder falling funnel is mounted on the top wall of the liquid medicine box and on an outlet pipe of the powder supply box, and the powder falling funnel is communicated with an inner cavity of the liquid medicine box; the dosing assembly comprises a dosing metering pump, an inlet of the dosing metering pump is connected with the bottom of an inner cavity of the liquid medicine box through a liquid taking pipeline, and a dosing pipeline is installed on an outlet pipe of the dosing metering pump. The sewage treatment dosing device provided by the utility model is high in structural integration level and flexible in movement and arrangement, has the functions of liquid medicine preparation and dosing, and meets the requirements on treatment liquid medicine in a sewage treatment scene.

The invention discloses an aeration device and an aeration method, and relates to the field of sewage aeration, and the aeration device comprises an aeration main body. Wherein the aeration main body is provided with an aeration cavity, an air inlet and a liquid outlet, the air inlet and the liquid outlet are communicated with the aeration cavity, and the liquid outlet is lower than the air inlet. A first aeration port and a second aeration port which are higher than the liquid outlet and lower than the air inlet are formed in the aeration main body by the aeration cavity, and the second aeration port is higher than the first aeration port; wherein the liquid level in the aeration cavity is pressed by inlet air so as to change, so that when the first aeration opening is immersed, the second aeration opening discharges air independently, or when the first aeration opening and the second aeration opening are not immersed, the first aeration opening and the second aeration opening discharge air together. The sewage treatment device has multiple working modes and is good in adaptability to multiple sewage treatment scenes.

The invention provides a method for rapidly stabilizing and improving the denitrification efficiency of a shortcut nitrification coupled anaerobic ammonia oxidation (PN / A) system, and aims to stabilize a continuous packed fixed bed PN / A reactor in a mainstream state and improve the denitrification performance of the continuous packed fixed bed PN / A reactor at the same time. 2.0 mg N / L of free nitrous acid (FNA) and 30.0 mg N / L of free ammonia (FA) are used for treating and inhibiting nitrite oxidizing bacteria (NOB) in the system so as to reduce the concentration of nitrate nitrogen (NO3 <->-N) in effluent, and 3.0 mg N / L of FNA needs to be used for further inhibiting the nitrate nitrogen (NO3 <->-N) when the high aeration flow speed (30 mL / min) is adopted. Experiments show that by means of the method, nitrate nitrogen in effluent is reduced from 15.64 mg N / L to 3.10 mg N / L, and the total nitrogen removal rate is increased from 143.43 mg N / L / d to 589.25 mg N / L / d and is increased by 4.11 times. Besides, the reactor used in the invention is a continuous filler fixed bed reactor, so that the sewage treatment load is improved, the sludge biomass retention capability is good, the operation is simple, and the method is environment-friendly. The overall efficiency of the sewage treatment system is greatly improved, the stability of the continuous PN / A system is also improved, and the continuous PN / A system is suitable for sewage treatment scenes with efficient denitrification requirements.

The present invention provides a method for rapidly restoring the denitrification efficiency of an anaerobic ammonium oxidation system, aiming to solve the problem of insufficient activity of anaerobic ammonium oxidizing bacteria in a restricted reactor. By introducing high-activity anaerobic ammonium oxidizing bacteria in the side stream and adding 5-6 mg / L of Fe 3+ , while adjusting the hydraulic retention time, significantly improved the adaptability and denitrification rate of anaerobic ammonia oxidizing bacteria. Experiments showed that this method increased the denitrification rate from 40mg N / L / d to 160mg N / L / d, an increase of 300%. In addition, by laying hollow plastic balls with a diameter of 16mm in the reactor, a strict anaerobic environment was ensured, which was conducive to the recovery of the activity of anaerobic ammonia oxidizing bacteria. 3+ This method optimizes the microbial growth environment, enhances bacterial flora stability and denitrification efficiency, inhibits competition from harmful microorganisms, and is simple to operate and environmentally friendly. This invention not only significantly improves the overall efficiency of sewage treatment systems, but also reduces energy consumption and sludge production, lowering denitrification costs. It is suitable for all sewage treatment scenarios requiring efficient denitrification.

The application discloses a medicament feeding device for a sewage treatment system, relates to the technical field of sewage medicament feeding, and aims to solve the technical problem of difficult mixing of medicament when the medicament is fed at high or low sewage flow speed, and comprises a base, a sewage pipeline, a mixing tank, a communication pipe, a jet flow mechanism, an adjusting assembly, a pressure boosting assembly and a mixing assembly. The application realizes the dual effects of adaptive mixing and efficient impact. When rotating, the auxiliary nozzle adjusts the jet angle according to the water flow direction, prevents backflow through the direct flow passage, reduces the risk of pipeline blockage, and adapts to complex water flow environment. When fixed, the adjusting assembly blocks the internal passage of the impact piece, the pressure boosting assembly pressurizes the communication pipe, the medicament is shot out at high speed in a diffusion manner, and the impact mixing of high-flow-speed sewage is strengthened. The application improves the mixing efficiency of medicament and sewage at different flow speeds through the synergistic effect of multiple assemblies, has the advantages of backflow prevention, quantitative medicament feeding and adaptation to complex working conditions, and is suitable for various sewage treatment scenes.

The invention discloses a sewage treatment process coordinated regulation and control device, and relates to the technical field of sewage environment-friendly treatment, the sewage treatment process coordinated regulation and control device comprises a platform frame, a separation sewage collection module, a mixing module, a precipitation separation module and a power generation collection module are mounted on the platform frame, and the core innovation is that a water outlet gap regulation module and a power generation control fine adjustment module are additionally arranged. The water outlet gap adjusting module realizes 5-20cm stepless gap regulation and control through hydraulic driving, connecting rod transmission and flow choking block matching, the water outlet speed and the discharge amount are accurately controlled, the filtering effect is guaranteed, and meanwhile, the power generation requirement is met; the power generation control fine adjustment module adopts a gear transmission and height adjustment structure, can realize flexible fine adjustment of the rotating speed and the height of 0-30cm of a vortex impeller, is adaptive to different water flow impact strengths, and can be linked with a source network load storage system. The device realizes closed-loop coordination of'sewage treatment-water flow regulation and control-energy recovery ', has the characteristics of excellent treatment effect, high energy utilization rate and strong adaptability, meets the low-carbon development requirement, and is suitable for various sewage treatment scenes.

The utility model relates to the technical field of sewage treatment, in particular to an automatic stirring device of a sedimentation tank, which comprises a sedimentation tank body, a supporting transverse plate is arranged at the top of the sedimentation tank body, first motors which are symmetrically distributed are arranged at the top of the supporting transverse plate, and an output shaft of each first motor is connected with a stirring frame. And the stirring frame is positioned in the sedimentation tank body. The device is provided with a power supply device composed of a solar panel, a converter and a storage battery, solar energy is used as a main energy source, the dependence on an external power grid is reduced, the operation cost is reduced, and the device can stably operate under various environmental conditions and is not limited by geographic positions and power supply conditions; the device is simple in structure and suitable for sewage treatment scenes of different scales and types, in addition, the stirring and discharging processes are automatically controlled through an integrated control system preset program, the manual intervention requirement is reduced, and the flexibility and convenience of the device are improved.

The application provides a red soil-based copolymer coagulant, a preparation method thereof and a wastewater treatment method. The method uses red soil as a raw material, and the red soil is subjected to alkali fusion activation, acid leaching extraction and induced copolymer aging treatment to prepare a red soil copolymer coagulant containing silicon, aluminum and iron and having a synergistic effect of multiple components. The coagulant has a high charge density and a three-dimensional network structure, and when treating combined overflow sewage, the coagulant realizes efficient removal of pollutants through rapid mixing, slow loading flocculation and rapid sedimentation. Compared with traditional coagulants, the preparation method of the application is simple, the cost is low, the coagulation and sedimentation speed is fast, the treatment efficiency is high, and the application is suitable for the treatment of combined overflow sewage with high flow and short residence time.

The invention discloses a circulating type multi-process sewage plant peculiar smell treatment process, and particularly relates to the technical field of chemical engineering environment-friendly waste gas treatment.The circulating type multi-process sewage plant peculiar smell treatment process comprises a waste gas collection system, a pretreatment system, a purification system and a discharge system which are sequentially connected. Oil gas and aerosol are removed through a multi-stage coalescence coarse graining device; the pretreatment system is used for removing acidic pollutants and water-soluble substances by combining a composite process of a multi-tube rotational flow washing tower with addition of alkali liquor; the purification system utilizes a layered structure of a three-layer combined biological filter tower to degrade pollutants, and is assisted by a security filter to cope with an over-standard working condition; and the discharge system realizes up-to-standard discharge through an induced draft fan and a chimney. The process integrates multiple processes, can efficiently treat oil gas, acid gas, VOCs and malodorous substances in waste gas, has the advantages of low operation cost, energy conservation, environmental protection, no secondary pollution and the like, and is suitable for waste gas treatment in a sewage treatment plant.

The invention discloses a water quality anomaly detection method and system based on deep learning, and belongs to the technical field of sewage treatment. According to the method, multi-dimensional water quality data are collected, preprocessed and then input into a deep learning model integrating a long short-term memory (LSTM) network and an attention mechanism, and real-time prediction and anomaly recognition of key indexes of inflow water quality are achieved; the system is composed of a sensing layer, a data layer, a model layer and an application layer, and a closed-loop management and control system is formed. The method solves the problems of response lagging and insufficient precision of a traditional detection method, can predict water quality fluctuation in advance, effectively reduces the risk that the effluent of the sewage treatment plant exceeds the standard, is suitable for various scales of sewage treatment scenes, effectively reduces the risk that the effluent of the sewage treatment plant exceeds the standard due to the abnormal recognition accuracy, and is suitable for industrial sewage treatment scenes.

This invention provides a sand coagulation sedimentation device and method, relating to the field of wastewater treatment technology. It includes a tank containing a gradient mixing reaction unit and a sedimentation unit, with an integrated sand-sludge separation and circulation unit. The reaction unit employs multi-stage series mixing chambers and graded stirring to achieve gradient loading flocculation of the sand medium. The core feature is that the sand-sludge separation and circulation unit uses a set of linked drive components to synchronously drive a sludge pushing and scraping component, a grading and screening component, and a vibration-promoting sedimentation component, achieving sand-sludge separation, sludge pushing, and anti-clogging and sedimentation promotion in the sedimentation zone with a single power source. The sedimentation method includes gradient mixing reaction, sedimentation separation, linked sand-sludge separation and sedimentation promotion, and closed-loop reuse of the sand medium. This invention features highly integrated device, low energy consumption, advanced process technology, high sand medium recovery rate, excellent flocculation and sedimentation effect, stable and reliable operation, and is suitable for various high-requirement wastewater treatment scenarios.

This invention discloses a circulating, multi-stage odor treatment process for wastewater treatment plants, specifically relating to the field of chemical and environmental waste gas treatment technology. It includes a waste gas collection system, a pretreatment system, a purification system, and an emission system connected in sequence. The waste gas collection system uses micro-negative pressure suction technology to collect waste gas, which is then treated by a multi-stage coalescing coarse granulator to remove oil, gas, and aerosols. The pretreatment system uses a multi-tube cyclone scrubbing tower combined with alkaline solution addition to remove acidic pollutants and water-soluble substances. The purification system utilizes a three-layer combined biological filter tower with a layered structure to degrade pollutants, supplemented by a security filter to handle conditions exceeding emission standards. The emission system achieves compliant emissions through an induced draft fan and a chimney. This process integrates multiple processes, efficiently treating oil, gas, acidic gases, VOCs, and odorous substances in waste gas. It has advantages such as low operating costs, energy saving, environmental protection, and no secondary pollution, making it suitable for wastewater treatment plant waste gas treatment.

The invention discloses a refining sewage treatment plant production operation evaluation method, device, equipment and system, and the method comprises the steps: inputting key process parameters of the production operation of a refining sewage treatment plant and COD emission concentration data monitored in real time into a pre-trained convolution-long and short term memory hybrid neural network prediction model; the optimal value of the key process parameters and the predicted value of the COD emission concentration data are obtained; performing threshold value processing on the COD emission concentration data prediction value to obtain a comprehensive decision threshold value interval; and based on a comparison result of the COD emission concentration data monitored in real time and the comprehensive decision threshold interval, evaluating the production operation state of the refinery sewage treatment plant, and adjusting the production operation parameters of the refinery sewage treatment plant based on the key process parameter optimization value. According to the method, the optimal indexes of the key process parameters can be obtained, the comprehensive decision of sewage treatment operation is realized, and the technical problems of high energy consumption, high material consumption, incapability of stably reaching the standard of discharge and the like of a sewage treatment plant are solved.

The invention discloses a chemical feeding device for a sewage treatment system, relates to the technical field of sewage chemical feeding, and aims to solve the technical problem that chemical liquid is difficult to mix when sewage flows fast or slowly, and the chemical feeding device comprises a base, a sewage pipeline, a mixing tank, a communicating pipe, a jet flow mechanism, an adjusting assembly, a pressurizing assembly and a mixing assembly. During rotation, the auxiliary spray head adjusts the spraying angle according to the water flow direction, backward flowing and backflow are prevented through the direct flow circulation channel, the pipeline blocking risk is reduced, and the self-adaptive mixing and efficient impacting device adapts to the complex water flow environment; during fixing, the adjusting assembly is matched to block an inner channel of the impact piece, the communicating pipe is pressurized through the pressurizing assembly, so that liquid medicine is ejected out at a high speed in a diffusion manner, and impact mixing of high-flow-speed sewage is enhanced. The device has the advantages of backflow prevention, quantitative dosing and adaptability to complex working conditions, and is suitable for various sewage treatment scenes.