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1980results about "Water aeration" patented technology

Multi-source data fusion modeling method and system in aeration process

The invention provides a multi-source data fusion modeling method and system in an aeration process, and is applied to the field of intelligent aeration control in sewage treatment. The method comprises the steps that multi-source time sequence data such as dissolved oxygen, turbidity, flow, temperature, power and pool bottom pressure pulsation signals are collected, dissolved oxygen response lag is calculated through cross-correlation analysis with power change as the reference, time sequence alignment is carried out, and a dissolved oxygen reference interval is predicted by utilizing calibration data in combination with a physical constraint LSTM model; performing spectral analysis on the pressure pulsation signal to extract a gas-liquid coupling characteristic value, and generating a cooperative regulation instruction of the frequency of the blower and the rotating speed of the stirrer based on the information; by means of the scheme, control oscillation caused by lag of the dissolved oxygen sensor can be effectively overcome, online monitoring of bubble form distribution is achieved, the gas-liquid mass transfer efficiency is improved, invalid aeration is avoided, and system energy consumption is remarkably reduced on the premise that stable effluent quality is guaranteed.
Owner:GUANGZHOU WATER ENVIRONMENTAL PROTECTION TECH CO LTD

Coupling control system and method for deep denitrification of sewage

The invention relates to the technical field of sewage treatment, in particular to a coupling control system and method for deep denitrification of sewage, and the system comprises a real-time water quality monitoring module, a microorganism twinborn modeling module, a real-time prediction module, an intelligent decision module, an execution mechanism module and a prediction regulation and control module. Compared with the prior art that a passive feedback control strategy based on an effluent quality index is generally adopted, the hysteresis quality is high, and violent fluctuation of an inflow load cannot be coped with; according to the method, a digital twinborn body capable of reflecting the functional state of a microbial community in real time is constructed, and a control target is improved from a traditional process parameter set point to direct optimization of microbial ecological functions; according to the invention, the method achieves the fundamental crossing from the control of technological parameters to the regulation and control of microbial ecology, can carry out intervention from the root of the reaction process, enables the system to have the active health management capability, and remarkably improves the stability of the treatment efficiency and the intelligent level of coping with complex working conditions.
Owner:HUNAN DEEYA ENVIRONMENTAL ENG CO LTD

Greenhouse gas optimization control method and device for sewage treatment plant and storage medium

The invention discloses a sewage treatment plant greenhouse gas optimization control method and device and a storage medium, and relates to the technical field of environmental protection, and the method comprises the steps: discretizing a sewage treatment process of an aeration tank into a plurality of complete mixing reactors connected in series, and constructing a sewage treatment process mechanism model based on an activated sludge model; optimizing parameters of the sewage treatment process mechanism model according to the target greenhouse gas concentration spatial distribution data, the target greenhouse gas emission flux and the water quality spatial distribution data to obtain a digital twinborn model; based on a digital twinborn model, a dissolved oxygen set value of each complete mixing reactor partition in an aeration tank is used as a decision variable, a multi-objective evolutionary algorithm is adopted for solving, a Pareto optimal control strategy is generated, and the technical problem that in the prior art, an optimal control strategy of greenhouse gas is not accurate is solved. And precise quantification and collaborative optimization control of greenhouse gas emission are realized.
Owner:HARBIN INSTITUTE OF TECHNOLOGY (SHENZHEN) (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)

Aerobic aeration treatment system for plateau domestic sewage treatment

The invention relates to the technical field of sewage treatment, in particular to an aerobic aeration treatment system for plateau domestic sewage treatment, which comprises a pretreatment unit, a biological treatment unit, an advanced treatment unit and a recycling unit which are connected in sequence, the system further comprises a data acquisition module, an aerobic aeration intelligent regulation and control module, a biochemical environment constant-temperature maintenance module, a carbon-nitrogen proportion and backflow dynamic regulation and control module, a digital twinning and sludge characteristic simulation module and an energy collaborative scheduling module. Compared with the prior art which adopts a standard aeration strategy and cannot adapt to the special environment of low air pressure and low oxygen partial pressure of the plateau, the system can accurately adapt to the plateau environment by integrating real-time atmospheric pressure and water temperature monitoring, dynamically calculating the oxygen saturation solubility and correcting the aeration control target according to the oxygen saturation solubility, so that the aeration control target is optimized. Stable supply of dissolved oxygen required by biochemical reaction is ensured, and the technical bottleneck of low efficiency of traditional sewage treatment in plateau regions is fundamentally overcome.
Owner:HUNAN ZHONGTUO ENVIRONMENTAL ENG CO LTD

Accurate aeration method for sewage

PendingCN121135005AWater aerationSustainable biological treatmentMixed liquor suspended solidsSludge
The invention discloses a precise sewage aeration method, and relates to the field of water, wastewater, sewage or sludge treatment, the method comprises a feed-forward model and a feedback model, the feed-forward model collects historical data of aeration tank operation parameters, environmental parameters and oxygen demand, and a decision tree is iteratively generated to correct errors and determine a target dissolved oxygen value; the feedback model corrects the target dissolved oxygen value according to the aeration tank dissolved oxygen concentration and the mixed liquid suspended solid concentration; and controlling the power of the aeration equipment according to the target dissolved oxygen value. Through common coordination of the feedforward model and the feedback model, accurate aeration of sewage treatment is realized.
Owner:FUZHOU FUCHUN ZIGUANG SEWAGE TREATMENT CO LTD

Bioreactor aeration self-adaptive control method and system based on machine learning

The invention provides a bioreactor aeration self-adaptive control method and system based on machine learning, and the method comprises the steps: collecting the water inlet flow, ammonia nitrogen concentration, dissolved oxygen concentration, water temperature and chemical oxygen demand data of a bioreactor in real time through a sensor, and carrying out the water balance verification and the Kalman filtering pretreatment containing a water temperature compensation item; generating an aeration instruction by adopting multi-model collaboration; outputting a reference aeration rate by a deep reinforcement learning DRL model; the self-adaptive PID controller dynamically adjusts the proportionality coefficient according to the dissolved oxygen deviation and calculates the correction amount; and the LSTM network generates a fusion weight, and combines the seasonal compensation factor and the safety coefficient to synthesize the final aeration rate. The system passes mutation rate constraint and nitrification efficiency verification, an ASM1 model is triggered to recheck when the deviation exceeds the standard, and after passing, an air blower with the precision of + / -2% executes an instruction and performs closed-loop feedback in a period smaller than or equal to 10 seconds. After the method is implemented, the aeration energy consumption is reduced to 0.38 kWh / m, the effluent ammonia nitrogen standard reaching rate is improved to 98.5%, the dissolved oxygen fluctuation range is reduced to + / -0.3 mg / L, and the impact load response time is shortened to be within 15 minutes.
Owner:AOLIU (SHENZHEN) TECH CO LTD

Landfill leachate treatment control method based on cooperative control

The invention relates to the technical field of environmental engineering water treatment automatic control, and discloses a landfill leachate treatment control method based on cooperative control. The method comprises the following steps: acquiring real-time monitored water quality parameter data streams including a pretreatment stage pH value, a main treatment stage COD concentration, a deep treatment stage membrane pressure difference and the like in a landfill leachate treatment system, inputting the data streams into a cooperative control framework, and dynamically correcting PID controller parameters through a nonlinear gain function to generate a primary adjustment instruction; evaluating and generating a strategy optimization instruction based on the reinforcement learning strategy network; inputting the two into a grey prediction model and outputting a cooperative control signal containing a feedforward compensation amount; and finally, dynamically adjusting the coagulant dosage, the aeration intensity and the working pressure of the membrane component according to the signal to form a closed-loop control loop. The method can master the water quality change in real time, accurately regulate and control the treatment process, improve the stability and reliability of the treatment system, and effectively improve the landfill leachate treatment effect.
Owner:HUNAN DEEYA ENVIRONMENTAL ENG CO LTD

Sewage treatment aeration control method and system based on deviation compensation hybrid model

The invention provides a sewage treatment aeration control method and system based on a deviation compensation hybrid model, and relates to the technical field of intelligent optimization control of a sewage treatment process, a mechanism model driving layer in the hybrid model outputs a benchmark predicted value of effluent quality, and a process deviation compensation layer performs uncertain quantitative estimation on the benchmark predicted value, so that an aeration control result is obtained. Performing process deviation compensation on the reference predicted value; establishing an aeration optimization objective function by taking the minimum aeration rate as an optimization objective, solving to obtain the optimal aeration rate, outputting a control signal to an air blower according to the optimal aeration rate so as to adjust the rotating speed of the air blower or the opening degree of a valve, change the air supply rate to a reaction tank, and simultaneously, collecting inlet water quality data and operation parameters of an aeration system in real time; and updating the optimal aeration rate, and updating the control signal to form a feedback closed loop. Highly intelligent, stable, reliable, energy-saving and efficient aeration control can be realized, and the sewage treatment plant is ensured to stably realize that the effluent quality reaches the standard and the energy consumption is reduced to the greatest extent under complex working conditions.
Owner:HUAZHONG UNIV OF SCI & TECH

Aeration tank for sewage treatment

The application discloses an aeration tank for sewage treatment and relates to the technical field of sewage treatment.The aeration tank comprises a tank body, a horizontal reciprocating moving mechanism and an aeration mechanism.The tank body is connected with a guide rail through a depth adjusting mechanism at the top.The guide rail is connected with a sliding seat through sliding connection.The bottom outer wall of the sliding seat is fixedly connected with a box.The aeration mechanism comprises a rotary driving assembly, a pipeline switching assembly, a water and air dual-purpose pump, a rotary pipe, an aeration head, an agitating impeller and a cleaning and anti-blocking assembly.The cleaning and anti-blocking assembly can automatically clean the inner wall of the aeration head in a continuous rotating state, thereby effectively avoiding the serious blocking of the air holes of the aeration head.The horizontal reciprocating moving mechanism can expand the aeration range of the aeration head and can uniformly distribute the aeration air into the sewage, thereby effectively improving the oxygenation effect of the sewage.
Owner:JIANGMEN JINGUZHOU SEWAGE TREATMENT CO LTD

Real-time sewage treatment method based on sewage data monitoring

The invention discloses a real-time sewage treatment method based on sewage data monitoring, particularly relates to the technical field of sewage treatment, and is used for solving the problem of how to realize real-time sewage treatment under the condition that quality problems such as sewage blockage, drifting and missing exist in online monitoring data under complex and fluctuating working conditions. The problem that real-time, stable and energy-saving self-adaptive regulation and control can still be conducted on the sewage treatment process based on sewage monitoring data is solved, and the problems that due to dirty data and sudden change of working conditions, outlet water exceeds the standard, and energy consumption / chemical consumption is abnormal are avoided. Key water quality soft measurement and multi-source difference checking are implemented under the constraint of working condition numbers by constructing a sewage working condition map and a data quality evaluation rule base and introducing sliding time window feature extraction, monitoring credibility grading and sewage state fingerprints. The control strategy can still generate reliable aeration control instructions, backflow control instructions and dosing control instructions when monitoring data distortion and working condition fluctuation, so that the effluent is ensured to stably reach the standard, and the risk of control deviation is reduced.
Owner:TIANJIN UNIV RES INST OF ARCHITECTRUAL DESIGN & URBAN PLANNING +1

Nitrogen and phosphorus removal filter with ozone micro-ecological environment

The utility model aims to provide the nitrogen and phosphorus removal filter with the ozone micro-ecological environment, which is used for removing nitrogen and phosphorus through microorganisms and treating sewage through ultraviolet sterilization. A water inlet is formed in the barrel body, and a water outlet is formed in the barrel body. The mechanical filtering module is arranged on the barrel body, is connected with the water inlet and is used for filtering and primarily treating the sewage; the ozone microorganism module is arranged between the mechanical filtering module and the barrel body and is communicated with the mechanical filtering module, an anaerobic zone, a facultative oxygen zone and an aerobic zone are formed in the ozone microorganism module, and nitrification and denitrification reactions are fully carried out for recirculating aquaculture and nitrogen and phosphorus removal treatment of aquaculture tail water; and the ultraviolet module is arranged on the outer side of the barrel body and is used for sterilizing and disinfecting the culture water or the culture tail water. The utility model is applied to the technical field of nitrogen and phosphorus removal filters.
Owner:GUANGZHOU CHUANGLING AQUATIC TECH CO LTD

Method and system for accurately controlling dissolved oxygen concentration of sewage treatment aeration unit

The invention discloses a method and system for accurately controlling the concentration of dissolved oxygen (DO) of a sewage treatment aeration unit, and the method comprises the steps: constructing a prediction model, and obtaining a model prediction value of the DO concentration at a current moment or a future moment according to the prediction model; calculating a current confidence coefficient; taking the current confidence coefficient as a weight coefficient, and carrying out weighted fusion calculation on a DO concentration measured value at the current moment and a DO concentration model prediction value to obtain a DO concentration fusion variable; the aeration air volume is adjusted or controlled with the purpose of minimizing the error between the DO concentration fusion variable and the DO concentration target value; the problem of overshoot oscillation caused by DO response lag in traditional control is solved, and a dynamic and accurate control solution is provided for the DO concentration of the aeration unit of the sewage plant.
Owner:恩宜瑞(江苏)环境发展有限公司 +1

Aeration fan frequency conversion group control energy-saving method based on intelligent optimization algorithm

The invention belongs to the crossing field of artificial intelligence and industrial automation, particularly relates to an aeration fan frequency conversion group control energy-saving method based on an intelligent optimization algorithm, and aims to solve the problems of high energy consumption, response lag and large equipment loss of a traditional control mode. According to the method, parameters such as dissolved oxygen, flow and pressure are collected in real time, a nonlinear optimization model with minimum energy consumption, accurate oxygen supply and minimum start and stop as multiple targets is constructed, an optimal rotating speed distribution scheme is solved online by adopting an improved particle swarm algorithm, and a smooth slope instruction output and closed-loop feedback correction mechanism is combined, so that the optimal rotating speed distribution scheme is obtained. And dynamic self-adaptive adjustment of fan group control is realized. The energy-saving efficiency is remarkably improved by 18%-25%, the annual electricity is saved by more than 800000 kilowatt-hour, meanwhile, the load unevenness is reduced to below 8%, fan start and stop is reduced by 60%, the service life of equipment is prolonged by 2-3 years, hardware does not need to be newly added, the deployment period is short, investment recovery is fast, and the method is successfully applied to multiple sewage plants.
Owner:HUANENG SHANTOU HAIMEN POWER GENERATION CO LTD

Efficiency prediction method and system for rural sewage resourceful treatment system

The invention provides an efficiency prediction method and system for a rural sewage resourceful treatment system. According to the method, the fluctuation amplitude and the duration are extracted through a flow fluctuation waveform and a retention duration deviation value, and a flow interference identifier is generated; triggering segmented deformation of the adjusting tank based on the fluctuation amplitude, adjusting the volume of the tank body according to the pressure gradient to dynamically compensate the flow fluctuation, and generating a volume compensation signal in combination with the retention duration difference and the fluctuation duration; the retention time length deviation is matched with a pollutant concentration time sequence, an aeration and precipitation equipment efficiency early warning track is generated based on correlation between the concentration change rate in the lag time period and a volume compensation signal, and a critical failure node is calibrated through a track trend turning point; and if the node is located in the preset discharge time period, updating the regulating reservoir deformation pressure gradient threshold value, synchronizing the dynamic compensation instruction, and executing the instruction to complete closed-loop correction. The closed-loop optimization of the treatment efficiency of the sewage system is realized.
Owner:TECH CENT FOR SOIL AGRI & RURAL ECOLOGY & ENVIRONMENT MINIST OF ECOLOGY & ENVIRONMENT

Sewage treatment aeration mechanism

The utility model discloses a sewage treatment aeration mechanism which comprises a bottom plate, an aeration tank and a plurality of groups of aeration heads, a cleaning scraper is rotatably arranged in the aeration tank, the lower surface of the cleaning scraper is fixedly connected with a cleaning brush plate, two groups of mounting top plates are symmetrically arranged on the upper surface of the aeration tank, and the upper surfaces of the two groups of mounting top plates are jointly clamped with a support plate; a rotating assembly used for driving the cleaning scraper and the cleaning brush plate to rotate is arranged on the upper surface of the supporting plate. The upper surface of the supporting plate is provided with an adjusting assembly used for adjusting the height of the cleaning scraper and the cleaning brush plate. The cleaning scraping plate is driven by the rotating assembly to clean the inner wall of the aeration tank, then the surface of the aeration head is cleaned by the cleaning brush plate, and after the aeration heads with different heights are replaced, the cleaning scraping plate and the cleaning brush plate are driven by the adjusting assembly to move up and down, so that the cleaning brush plate can be suitable for the aeration heads with different heights; therefore, manual cleaning of workers is avoided, and meanwhile, the cleaning quality of the aeration head is ensured.
Owner:GUANGDONG JIAN GONG ENVIRONMENTAL PROTECTION CO LTD

Oxygen gradient self-coupling granular sludge partition reactor

The invention belongs to the technical field of sewage treatment, and particularly relates to an oxygen gradient self-coupling granular sludge partition reactor which comprises a reactor body, the reactor body is of a vertically-arranged tower structure, and an aeration system, a water distribution system, a partition assembly, a three-phase separator, a gas collection assembly, a water outlet assembly and a sludge discharge port are arranged in the reactor body. Wherein at least one layer of separation assembly is arranged, and the separation assembly divides an inner cavity of the reactor body into a first reaction function area and a second reaction function area which are connected in series up and down; the separation assembly comprises PET geotechnical cloth, and grating supporting plates are arranged on the upper side and the lower side of the PET geotechnical cloth. The functions of aeration, reaction, separation, water outlet and the like are integrated through a vertical tower type structure, high efficiency and energy conservation in the sewage treatment process are achieved, nitrification and denitrification reactions are synchronously completed in a single reactor by utilizing an oxygen gradient self-coupling mechanism in aerobic granular sludge, a traditional nitrification liquid internal reflux and sludge reflux system is not needed, and the cost is reduced. And the energy consumption and the operation cost are obviously reduced.
Owner:BEIJING MUNICIPAL RES INST OF ENVIRONMENT PROTECTION

Bio-ecological ectopic integrated tail water purification device and method

The invention relates to a biological and ecological ectopic integrated tail water purification device and method, the device comprises a buffer sedimentation tank at the lower part, an ecological treatment area at the middle part and an aeration tank at the top, tail water at the upper part of the buffer sedimentation tank is conveyed to the aeration tank through a water pump, the bottom is provided with a drain outlet, and the ecological treatment area comprises a benthic organism tank, a microorganism tank and a wetland tank of which the heights are sequentially reduced; the upper part of the wetland pool is not blocked, and tail water flows out from a water outlet of the wetland pool after sequentially passing through the aeration pool, the benthic organism pool, the microorganism pool and the wetland pool. A series of three-dimensional structures such as the vertical flow wetland and the laminated filter tank are adopted, compared with the prior art, the occupied area is greatly reduced, the space utilization rate is increased, and the intensive culture space contradiction is solved.
Owner:HAINAN UNIVERSITY SANYA NANFAN RESEARCH INSTITUTE +1

Immersed rotary ceramic membrane aeration device

The utility model discloses an immersed rotary ceramic membrane aeration device which comprises a base, a waterproof rotary motor, a rotary ceramic membrane component and a rotary joint, an internal air channel of the rotary ceramic membrane comprises an inner ring air collection cavity, a plurality of air flow channels with the same size and structure and an outer ring aeration cavity, the inner ring air collection cavity is communicated with air outlet holes corresponding to the rotary ceramic membrane where the inner ring air collection cavity is located and is communicated with the outer ring aeration cavity through the air flow channels, and different air flow channels distribute air independently. The inner ring gas collection cavity carries out secondary distribution on inlet gas, so that gas distribution is more uniform, the gas subjected to secondary distribution passes through the gas flow channels to be uniformly aerated, and meanwhile, the outer ring aeration cavity at the tail ends of the gas flow channels communicates all the gas flow channels, so that the aeration uniformity in each gas flow channel is further ensured. The whole device can be submerged into water for use, and is relatively flexible, simple and convenient to install, maintain and apply.
Owner:SUNTAR MEMBRANE TECHNOLOGY (XIAMEN) CO LTD

Urban shallow lake ecological protection and restoration method and system integrated with intelligent management and control

The invention discloses an urban shallow lake ecological protection and restoration method and system integrated with intelligent management and control, and relates to the technical field of water environment ecological management and intelligent water affairs, and the method comprises the steps: constructing a three-dimensional monitoring network to synchronously collect water quality, image and meteorological data, and carrying out the fusion to generate a multi-modal data set; a deep learning model is utilized to realize pollution source tracing, water quality prediction and algae bloom early warning in parallel; based on the prediction result, outputting a multi-facility cooperative regulation strategy through a reinforcement learning agent; and converting the strategy into a hierarchical instruction to drive an execution unit, and feeding back the treated environment state to the model and the intelligent agent to form closed-loop optimization. According to the invention, whole-course intelligent management and control from monitoring to execution are realized, systematicness, accuracy and perspectiveness of lake treatment are effectively improved, and water environment risk response capability and ecological restoration effect are significantly enhanced.
Owner:GUANGDONG RES INST OF WATER RESOURCES & HYDROPOWER

Intelligent self-adaptive control method and system for sewage aeration

The invention provides an intelligent self-adaptive control method and system for sewage aeration, and is applied to the field of intelligent control of activated sludge process sewage treatment. The method comprises the steps that inlet water quality parameters are collected through a sensor array, abnormal fluctuation is recognized through a support vector machine, the sudden increase probability of pollutant concentration is calculated by combining a neural network with a historical mode, and when a threshold value is exceeded, a response delay index is calculated based on inlet water flow and biochemical kinetic parameters; generating an oxygen injection sequence according to the real-time dissolved oxygen data so as to regulate and control aeration equipment, and performing closed-loop feedback regulation according to the real-time dissolved oxygen data; by means of the scheme, pollution impact can be predicted in advance, system lag can be compensated, accurate matching of oxygen supply and loads on the time sequence is achieved, the quality stability of outlet water is effectively improved, and energy consumption is reduced.
Owner:GUANGZHOU WATER ENVIRONMENTAL PROTECTION TECH CO LTD

Dissolved oxygen closed-loop regulation and control method used in sewage treatment process

The invention discloses a dissolved oxygen closed-loop regulation and control method used in a sewage treatment process. The method comprises the following steps: acquiring real-time dissolved oxygen concentration in a reaction tank through a distributed sensor array, and performing temperature compensation; an online water quality analyzer is used for collecting water inlet flow, chemical oxygen demand, ammonia nitrogen and water temperature to construct a comprehensive input feature vector; establishing a nonlinear dynamic mapping model based on a deep neural network, and outputting a target dissolved oxygen set value changing along with working conditions; an aeration adjusting instruction is generated by adopting a feedforward-feedback composite adaptive fuzzy PID control algorithm; dynamically adjusting the air volume of an air blower and the opening density of a partition aeration disc to match the aerobic rate of microorganisms; and the control performance is evaluated regularly, and a model parameter online optimization mechanism is triggered to continuously improve the setting precision. According to the method disclosed by the invention, the dissolved oxygen can be accurately controlled, so that the aeration energy consumption is reduced by not less than 18%, the control precision is within + / -0.3 mg / L, and the robustness, the automation level and the low-carbon operation capability of the system are remarkably improved.
Owner:GUANGZHOU LIANGSEN INSTR TECH CO LTD

Microporous aerator for water treatment

The utility model discloses a microporous aerator for water treatment, which belongs to the technical field of water treatment, solves the problem that water is easy to permeate into the aerator when the existing aerator stands in sewage and is not used, and adopts the technical scheme that the microporous aerator for water treatment comprises a connecting seat, the connecting seat is provided with a connecting part and a supporting part which are connected into a whole, the supporting part is in an arch shape, a plurality of through holes are formed in the wall body of the supporting part, the aeration diaphragm is connected to the supporting part in an attached and sleeved mode, a plurality of aeration holes are formed in the aeration diaphragm, the pressing hoop is connected to the connecting part so that the aeration diaphragm can be tightly pressed on the supporting part, and the air guiding seat is connected with the connecting part. The C-shaped aeration membrane is characterized in that the aeration holes are C-shaped, so that elastic bodies with C-shaped side surfaces are formed at the positions of the aeration holes in the aeration membrane, the side surfaces of the elastic bodies and the inner surfaces of the aeration holes are correspondingly and obliquely arranged, the transverse size of the outer side part of each elastic body is large, and the transverse size of the inner side part of each elastic body is small.
Owner:ZHEJIANG HEYI ENVIRONMENTAL PROTECTION TECH CO LTD

Advanced treatment system for high-concentration nitrogenous organic wastewater

The utility model discloses an advanced treatment system for high-concentration nitrogen-containing organic wastewater, which sequentially comprises an anaerobic tank, an anoxic tank, an aerobic tank, a secondary sedimentation tank, a sulfur autotrophic denitrification filter tank and a limestone filter tank, a water passing hole is formed in the upper part of a wall body between the anaerobic tank and the anoxic tank, a hollow aeration fiber membrane assembly is arranged in the anoxic tank, an aeration pipe is arranged at the bottom of the aerobic tank, a mixed liquid reflux pump is arranged at the bottom of the aerobic tank in a penetrating manner and is connected with the anoxic tank through a pipeline, and the aeration pipe is connected with the anoxic tank through a pipeline. A sludge reflux pump penetrates through the bottom of the secondary sedimentation tank and is connected with the anaerobic tank through a pipeline. Iron-carbon micro-electrolysis is intervened in the anaerobic reactor to achieve the purposes of improving the biodegradability of high-concentration degradation-resistant wastewater and enhancing biochemical treatment, and the nitrogen removal mode of anaerobic section MABR bubble-free aeration synchronous nitrification and denitrification is organically combined, so that the treatment load of the system and the utilization rate of activated sludge are improved.
Owner:JIANGSU JINRUO ENVIRONMENTAL TECH CO LTD +1

Sewage treatment system

The invention discloses a sewage treatment system, and belongs to the technical field of sewage treatment. The sewage treatment system comprises a filter tank, a secondary sedimentation tank, a heat exchange pipeline, a heat exchange assembly, a sludge drying assembly and a pumping assembly, the heat exchange pipeline is embedded in the inner wall of the filter tank and communicates with the heat exchange assembly, the filter tank is used for filtering sewage, the temperature of the sewage is higher than 0 DEG C, and the heat exchange pipeline is used for transferring heat of the sewage in the filter tank to the heat exchange assembly; the sludge drying assembly is communicated with the bottom of the secondary sedimentation tank through a pumping assembly, the bottom of the secondary sedimentation tank is used for depositing sludge, and the pumping assembly is used for pumping the sludge to the sludge drying assembly; the heat exchange assembly is coupled with the sludge drying assembly, and the heat exchange assembly is used for transferring heat to the sludge drying assembly, so that the sludge drying assembly heats the sludge to dry the sludge.
Owner:HANGZHOU BEISHUI FUTURE TECHNOLOGY CO LTD

Aeration membrane tube and hoisting type aeration system

The utility model discloses an aeration membrane tube and a hoisting type aeration system. The aeration membrane tube comprises an air inlet joint, a supporting tube and a porous membrane tube, the supporting pipe is connected with the air inlet connector, the supporting pipe and the air inlet connector form an air distribution chamber, the air distribution chamber is separated from an inner cavity of the supporting pipe, and an opening for communicating the inner cavity of the supporting pipe with the outside is formed in the tail end, away from the air inlet connector, of the supporting pipe. The porous membrane tube is sleeved outside the supporting tube, at least one end of the porous membrane tube is annularly fixed through a clamp, a gap between the porous membrane tube and the side wall of the supporting tube forms an inflation space, and an air inlet communicated with the inflation space is formed in the side wall of the air distribution chamber. The buoyancy of the air cavity during aeration is counteracted by utilizing gravity, the aeration membrane tube does not need to be fixed by adopting a fixing bracket, the mounting process is simplified, the cost is reduced, the aeration membrane tube is hoisted and fixed, the relative levelness of the aeration membrane tube can be controlled at the top of the tank, the same aeration water depth and aeration uniformity are ensured, and the aeration efficiency is improved. And the aeration system can be mounted and overhauled outside the tank body.
Owner:BEIJING HUANENG SHUANGYI TECHNOLOGY CO LTD

Sewage treatment control system and method based on large model

The invention belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment control system and method based on a large model, and the method comprises the steps: S1, collecting multi-source heterogeneous data, carrying out the preprocessing of the multi-source heterogeneous data, dividing the data into a training set, a verification set and a test set, the multi-source heterogeneous data comprises process data, equipment operation data, environment and external data, laboratory analysis data and maintenance management data; s2, constructing a sewage treatment control optimization model based on Time-MoE, and carrying out model training; s3, inputting the preprocessed multi-source heterogeneous real-time data into the sewage treatment control optimization model, outputting a process parameter predicted value, and performing real-time regulation and control on the sewage treatment control system according to the process parameter predicted value; meanwhile, water quality data and energy consumption data after regulation and control are collected, and the sewage treatment control optimization model is updated and verified according to the water quality data and the energy consumption data. The problem of low control precision caused by one-sided model decision basis and poor adaptability is solved.
Owner:CHONGQING TECH & BUSINESS UNIV

Fry hatching equipment for breeding and cultivating schizothorax

The invention relates to the technical field of fishery breeding, and particularly discloses a fry hatching device for schizothorax breeding, comprising a support frame, the top of the support frame is fixedly connected with a hatching box and a breeding box, the side surface of the hatching box is fixedly connected with the side surface of the breeding box, and two sides of the inner wall of the breeding box are fixedly connected with plastic plates; the fry hatching equipment comprises a hatching box and a breeding box, the side faces of the hatching box and the breeding box communicate with water adding pipes, the bottom of the side face of the hatching box penetrates through and is fixedly connected with a purification assembly, and an inlet is formed in the side, close to the hatching box, of the inner wall of the breeding box. And the aeration device is arranged, so that the content of dissolved oxygen in the incubator can be increased, sufficient oxygen is provided for fertilized eggs, and healthy growth of the fertilized eggs is promoted.
Owner:BIJIE AQUATIC TECH PROMOTION STATION

Domestic mini sewage treatment system and sewage treatment method

The present application relates to the field of sewage purification, and discloses a household micro sewage treatment system and a sewage treatment method, which comprises the following steps: building a septic tank; preparing a household micro sewage treatment system, an aeration system and suspended filler for microbial attachment; pumping clarified liquid by a lifting pump, and the clarified liquid enters a contact oxidation zone, and microorganisms degrade COD and BOD in the clarified liquid; the clarified liquid at the contact oxidation zone flows into an electrocoagulation zone, and electrocatalytic flocculation is performed; then, pollutants and phosphorus in the clarified liquid are filtered by a filtering zone, and the clarified liquid forms purified water; the purified water is taken from a water outlet zone, and is used for crop irrigation; or, a landscape zone for breeding aquatic plants or plankton is arranged at the water outlet zone. In the present application, the contact oxidation zone, the electrocoagulation zone, the filtering zone and the water outlet zone are sequentially and continuously arranged from bottom to top, and the arrangement structure of the whole household micro sewage treatment system is compact, and it is more convenient to arrange the system in a separate house environment in rural areas.
Owner:CHENGDU FILTRASCALE TECH

Wastewater treatment device

The embodiment of the utility model provides a wastewater treatment device, and relates to the technical field of wastewater treatment. The device comprises a reactor, a filter and a liquid outlet pipe, a reaction cavity is formed in the reactor, a water inlet and an exhaust port are formed in the reaction cavity, and the reaction cavity is used for containing activated sludge reacting with wastewater; a filter cavity is formed in the filter, and a membrane assembly is arranged in the filter cavity and used for filtering reaction liquid obtained after the wastewater reacts with the activated sludge; the reaction cavity is provided with a liquid outlet, the filtering cavity is provided with a liquid inlet, and the liquid outlet pipe is connected between the liquid outlet and the liquid inlet. According to the wastewater treatment device provided by the embodiment of the invention, the reactor and the filter are independently arranged and are isolated from the reaction cavity of the reactor, so that most sludge and microorganisms are left in the reactor, the contact between the sludge and the filter membrane and the contact between the microorganisms and the filter membrane are effectively reduced, and the treatment efficiency of the membrane bioreactor is further ensured.
Owner:HUALU ENG & TECH +1

Fish pond industrial aquaculture system

The utility model discloses a fishpond industrial aquaculture system which comprises an aquaculture unit used for aquaculture and separating circulating water and feces. The ecological purification unit is used for purifying circulating water and increasing oxygen, circulating water outlet of the breeding unit is connected with the ecological purification unit through a circulating water pipe, and return water purified and increased by the ecological purification unit is connected with the breeding unit through a return water pipe, so that the circulating water separated by the breeding unit is discharged to the ecological purification unit to be purified and increased oxygen and then flows back to the breeding unit; the precipitation unit is used for precipitating and concentrating the feces and is connected with the breeding unit so as to discharge the feces separated by the breeding unit to the precipitation unit for precipitation and concentration; the resourceful treatment unit is used for resourceful treatment of the feces, and the resourceful treatment unit is connected with the precipitation unit so as to discharge the feces precipitated and concentrated by the precipitation unit to the resourceful treatment unit for resourceful treatment; the culture unit and the ecological purification unit are both arranged in a water area, and the precipitation unit is arranged in or outside the water area. Water quality is improved; and cost is reduced.
Owner:GUANGZHOU YOUYI ENVIRONMENTAL PROTECTION CO LTD