4434results about "Treatment using aerobic processes" patented technology

The invention discloses an intelligent regulation and control method and system for sewage treatment and a program product, and relates to the technical field of sewage treatment.The method comprises the steps that a multi-modal water quality sensing network is constructed, and sewage quality parameter information and overall treatment target numerical value information are obtained; according to the equipment operation state and the overall treatment target numerical value information, sewage treatment process parameters are generated, and treatment units in the sewage treatment system are distributed in a plurality of areas; triggering a process regulation and control instruction according to the sewage treatment process parameters and the overall treatment target numerical value information; obtaining partition processing effect detection information, and comparing the partition processing effect detection information with the corresponding index value to obtain a partition difference value; if the partition difference value exceeds a preset change threshold range, triggering a partition self-adaptive regulation and control updating instruction; obtaining partition adjustment parameter information according to the partition self-adaptive regulation and control updating instruction; and triggering an adjustment instruction. The invention provides an intelligent regulation and control method based on multi-dimensional perception and adaptive decision.

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment aeration control method and system.The method comprises the steps that according to collected historical data, abnormal values are removed through intelligent calculation in combination with optimization and correction, an accurate sample data set is obtained and then classified through a clustering model, and all classifications are subjected to training and verification testing; a trained BP neural network model is obtained, a follow-up controller outputs accurate aeration quantity through the BP neural network model according to latest data to control each aeration device, and the increase / decrease of the air quantity of the biochemical pool is automatically adjusted; the blast volume of the biochemical pool is controlled and the air volume matching working condition is controlled according to the inlet water quality and the water volume, so that the control precision of the aeration rate in the sewage treatment process can be effectively improved, the energy consumption waste is reduced, the process control efficiency is improved, the air volume of the biochemical pool under different working conditions is ensured to be at the optimal value, the outlet water quality stability and the standard-reaching rate are ensured, and the power consumption cost is reduced; the method is suitable for sewage treatment plants of various types and scales, and has a wide market application prospect.

The invention provides a sewage treatment aeration control system and method based on multi-parameter collaborative optimization. The method comprises the following steps: acquiring multi-sensor data of COD (Chemical Oxygen Demand), BOD5 (Biochemical Oxygen Demand), DO (Dissolved Oxygen Demand), ammonia nitrogen, ORP (Oxidation Reduction Potential), pH (Potential of Hydrogen), water inlet flow and sludge concentration of wastewater in an aeration tank by utilizing a multi-parameter sensor module; according to the dynamic correction oxygen mass transfer coefficient and the feedforward parameter, establishing a relationship between the water inlet load and aeration; calculating the air volume of an air blower and the fine adjustment value of the opening degree of a butterfly valve through a PID control algorithm and feedback parameters, and correcting the aeration quantity to obtain a total air volume target value; and adjusting the opening degree and the rotating speed of a guide vane of the air blower according to the self-adaptive PID control parameters and the corrected total air volume target value by utilizing a self-adaptive PID controller, and adjusting the opening degree of a butterfly valve according to a gradient butterfly valve adjusting strategy. The output of the air blower is optimized by adopting self-adaptive PID, and the opening degree of the butterfly valve of each biological tank is dynamically adjusted through a gradient valve adjusting strategy, so that the accurate control of the aeration rate is realized; the sewage treatment effect is ensured.

A sewage treatment system based on aerobic granular sludge is disclosed, which includes a sewage treatment tank (1), a water distribution and aeration integrated mechanism and a water distribution and aeration switching control mechanism. The sewage treatment tank (1) includes a tank body (11), a top cover (13) is fixedly connected to a top opening of the tank body (11), and a clear water overflow port is arranged at a top side of the tank body (11). The water distribution and aeration integrated mechanism includes a first slip ring (21), a limit water retaining sleeve (220) is fixedly connected to an inner bottom of the tank body (11) through a water retaining sleeve mounting assembly, and a mixing section (212) of a water distributor body is vertically and slidably connected in the limit water retaining sleeve (220).

The invention relates to the technical field of sewage plant-oriented carbon neutralization regulation and control scheme design, in particular to a sewage plant-oriented carbon neutralization regulation and control method and a sewage plant-oriented carbon neutralization regulation and control system. The method comprises the steps of collecting water quality, energy consumption and gas emission data in real time through a multi-source sensor, inputting the data into a space-time diagram convolutional network to predict a carbon emission trend after edge computing node cleaning, and dynamically optimizing an aeration rate and a sludge reflux ratio based on a fuzzy PID controller. A whole-process carbon footprint is tracked by adopting a life cycle evaluation method, a multi-target compensation strategy is generated in combination with an improved NSGA-III algorithm, and photovoltaic, biogas and green power resources are scheduled preferentially. A digital twin platform and a block chain evidence storage module are innovatively integrated, the former calibrates model parameters in real time, and the latter generates a non-tampering carbon neutralization voucher. According to the method, the problems of one-sided data, regulation and control lag and insufficient credibility of a traditional method are solved, and minute-level sensing, prediction and offset closed-loop control of carbon emission in the sewage treatment process is realized.

The invention discloses a modified ceramsite filler based on iron-sulfur autotrophic denitrification as well as a preparation method and application thereof, and belongs to the technical field of sewage treatment. The modified ceramsite filler based on iron-sulfur autotrophic denitrification is ceramsite loaded with a modifier; the modifier comprises the following components: iron powder, pyrite powder and biochar; the mass ratio of the iron powder to the pyrite powder to the charcoal is 3: 6: 1; the mass ratio of the modifier to the ceramsite is 1.5: 1. The iron powder (zero-valent iron), the pyrite powder and the biochar are combined to modify the common ceramsite, the denitrification effect of the biofilter on low C / N wastewater is greatly improved, and under typical experimental conditions, the denitrification rate of the biofilter containing the modified ceramsite filler on low-carbon-nitrogen-ratio wastewater is improved by 90% or above compared with that of a common ceramsite biofilter. And the modified ceramsite filler prepared by the invention can obviously improve the phosphorus removal effect of the biological filter on wastewater with low carbon nitrogen ratio.

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment control process based on dynamic regulation and control of aeration and carbon source addition, which comprises the following steps: acquiring microbial metabolism heat change data in real time; biochemical treatment: monitoring the dielectric constant of a water body and the Reynolds number of sewage flow in real time, and constructing a multi-parameter coupling regulation and control model and dynamically regulating and controlling the aeration rate in combination with microbial metabolism heat change data obtained in the pretreatment step; accurately adding the carbon source according to a calculation result of the carbon source demand prediction model; sewage subjected to biochemical treatment is subjected to ultrafiltration through a nanofiber membrane and then subjected to combined disinfection treatment through ultraviolet rays and ozone, treatment parameters are regulated and controlled in real time according to the membrane flux attenuation trend in the treatment process, and dynamic and accurate control over sewage treatment is achieved. According to the method, the problem of energy consumption waste caused by excessive aeration or low degradation efficiency caused by insufficient aeration in a traditional process is solved, and accurate matching of dissolved oxygen supply and microbial requirements is realized.

The invention relates to the technical field of river and lake landscape water system purification, and discloses a river and lake landscape water system composite purification system, which comprises a water quality parameter acquisition module, an ecological analysis module, a microbiological treatment module, a multi-stage collaborative purification module, a purification parameter generation module, an authority association module and a dynamic regulation and control module. The water quality parameter acquisition module acquires data in multiple dimensions to quantify the pollution level and trigger a purification instruction; the ecological analysis module evaluates the ecological self-purification capability, and the microbiological treatment module predicts the degradation efficiency; the multi-stage collaborative purification module generates a regulation and control signal in combination with the evaluation value; the purification parameter generation module generates repair and activation parameters accordingly; the permission association module monitors the emission permission of the pollution source; and the dynamic regulation and control module forms a closed-loop purification process. According to the system, through multi-module cooperation and closed-loop regulation and control, accurate recognition of river and lake landscape water system pollution, ecological self-purification capability activation and microbial degradation enhancement are achieved, and the purification efficiency and ecological restoration long-term effect are improved.

The invention discloses a shallow lake water quality pollution treatment system and method, and relates to the technical field of water pollution, and the method comprises the steps: S1, building a disturbance intensity index DIX and ammonia nitrogen concentration change curve, achieving the quantitative recognition of bottom mud disturbance and pollution release behaviors, training a rebound risk prediction model according to the quantitative recognition, and outputting a rebound risk prediction coefficient Ft; and the capability of pre-judging the rebound trend of the ammonia nitrogen pollution is effectively improved. In the step S2, the adjusted aeration response frequency BAF is dynamically generated based on the rebound risk prediction coefficient Ft value, so that the aeration behavior is converted into a risk-driven system from a traditional timing system, the energy consumption and disturbance intensity are further reduced, and the treatment efficiency is improved. And S3, further introducing a governance residual coefficient GRC, constructing a complete feedback closed loop, and realizing accurate evaluation and secondary strategy optimization of the governance effect of each round, thereby avoiding the problem of effect back-off or excessive disturbance after governance.

The invention provides an intelligent aeration system and a control method, and the system comprises a multi-parameter monitoring module which collects parameters such as water depth, pressure, temperature, dissolved oxygen, inlet water ammonia nitrogen, chemical oxygen demand, and mixed liquid suspended solid concentration in real time; the data analysis and preprocessing module adopts a sliding window algorithm to carry out data cleaning and anomaly detection; the oxygen supply demand prediction module establishes an oxygen demand prediction model based on machine learning, and combines theoretical calculation and deep learning prediction; the multi-target intelligent control module adopts a reinforcement learning algorithm, establishes a Markov decision process model, and optimizes the processing effect and energy consumption at the same time; the execution control module is used for accurately adjusting the rotating speed of a fan, the opening degree of a valve and the running state of an aerator; and the system collaborative optimization module realizes linkage control of the aeration system and the carbon source adding system. The system has the functions of self-adaptive parameter adjustment, fault diagnosis and self-recovery, the DO control precision reaches 95% or above, the daily average electricity is saved by 9.7%, the NH4-N of effluent is reduced by 25%, and the annual comprehensive benefit exceeds 500,000 yuan.

The invention discloses wastewater treatment equipment and method used in a starch sugar production process, and belongs to the technical field of starch sugar production wastewater treatment. The shell comprises an inner shell and an outer shell, the bottom of the outer shell is fixedly provided with a drainage valve, the top of the inner shell is fixedly connected with a fixing frame, the fixing frame is fixedly provided with a power mechanism, the outer wall of the top of the inner shell is provided with a scum collecting mechanism, the bottom of the inner shell is fixedly provided with a cleaning cavity, and the side wall of the cleaning cavity extends outwards to form a blow-off pipe; a cleaning mechanism is fixedly arranged on the cleaning cavity, a filter cavity is fixedly arranged at the upper part of the cleaning cavity, a rotary filter screen is rotationally connected in the filter cavity, and an aeration disc is fixedly arranged at the top of the filter cavity. By arranging the power mechanism, when the driving motor rotates forwards and rapidly, rapid and efficient mixing of wastewater and a flocculating agent is promoted, and when the driving motor rotates backwards and rotates slowly, aeration operation is carried out in cooperation with the aeration disc, and soluble organic substances in the wastewater are removed. The method is mainly used for treating the starch sugar production wastewater.

The invention relates to the technical field of sewage treatment, in particular to water conservancy river pollution ecological restoration equipment. The aeration assembly is used for aeration in the central area in the aerobic tank; the drainage assembly is used for accumulating sewage; the dirt removal assembly comprises two dirt removal boxes which are fixedly mounted at the lower positions of the inner wall of the aerobic tank, and filter cotton is fixedly mounted at the middle positions of the inner walls of the two dirt removal boxes. Part of sewage is discharged into the reservoir and the external box to drive the lifting plate to ascend and descend, and in the ascending and descending process of the lifting plate, the annular water storage tank is driven by the connecting plate to ascend and descend intermittently, so that foams and scum flowing to the edge in the aerobic tank can flow into the annular water storage tank in the descending process of the annular water storage tank, and the foams and the scum can flow into the annular water storage tank. And oil dirt, organic matters and scum which generate foams are thoroughly filtered through the filter cotton by driving the lower pressing plate to ascend and descend.

The invention discloses a treatment process for acid mine wastewater and a combined reactor thereof, and relates to the technical field of water treatment. The method specifically comprises the following steps: oxidizing the mine acid wastewater through an aerobic reactor; adjusting the pH value to 2.8 by using KOH in a first neutralization reactor, and further adjusting the pH value to 4.5 by using KOH in a second neutralization reactor; the wastewater enters a pretreatment reactor, H2S is introduced for treatment, and the treated wastewater continuously enters two anaerobic reactors for reaction. According to the method, an aerobic-anaerobic combined reactor containing iron oxidizing bacteria and sulfate reducing bacteria is adopted for treating the mine acid wastewater, on one hand, AMD can be effectively treated, on the other hand, heavy metal can be selectively precipitated, and Schwertmannite and metal sulfide with utilization value are obtained. The method not only realizes the economic value of effectively utilizing the wastewater, but also realizes the target of environmental treatment, and has better economic value.

The invention relates to the technical field of textile dyeing sewage treatment, in particular to textile dyeing sewage treatment equipment. Comprising a purification box and a pretreatment box, and the interior of the pretreatment box communicates with the interior of the purification box; a sewage collecting box is fixedly connected to the purifying box, an auxiliary box is fixedly connected to the purifying box, an incomplete gear is driven by a first motor to rotate in the anticlockwise direction, so that a first conveying roller and a second conveying roller rotate synchronously, synchronous movement of a filter screen conveying belt is achieved, the filter screen conveying belt moves uninterruptedly while filtering is conducted, and the filtering efficiency is improved. The filter screen conveying belt entering the cleaning box is deeply cleaned through the wadding scraping mechanism and the deep cleaning mechanism, the filtering effect of the filter screen conveying belt is effectively improved, the filtering effect of sewage is improved through secondary filtering, the device enables sewage to be filtered more thoroughly, meanwhile, self-cleaning of the filter screen conveying belt can be conducted, and the service life of the filter screen conveying belt is prolonged. Manual replacement and manual cleaning are not needed, and the workload of workers is effectively reduced.

The invention relates to the field of water treatment, and discloses an MBBR suspended filler biological membrane thickness monitoring and control system which is mainly composed of a suspended filler biological membrane thickness monitoring module, a suspended filler biological membrane thickness early warning module and a suspended filler biological membrane thickness control module. According to the monitoring module, a suspended filler biological membrane picture obtaining unit obtains a biological membrane picture in real time through an online monitoring device; the picture processing unit processes the picture to obtain the thickness of the biological membrane as monitoring data; the thickness analysis unit further analyzes based on the data; the early warning module is used for judging whether the thickness of the biological membrane is abnormal or not, and giving out early warning if the thickness is abnormal; 2, judging whether the growth or shedding rate of the biological membrane is normal or not, and giving out early warning if the growth or shedding rate is abnormal; and the control module combines monitoring data of the monitoring module and an early warning signal of the early warning module to precisely control the opening degree of an automatic control valve of the aeration module in the MBBR pool, so that the thickness of a biological membrane is kept in an optimal range, and efficient and stable operation of a water treatment system is guaranteed.

The present invention discloses a municipal sewage treatment device, and relates to the technical field of municipal sewage treatment, including a degradation pool, wherein an injection pipe is arranged above the injection pipe, a rotating disk is fixedly connected to the bottom end of the injection pipe, an air jet is installed on the outer wall of the rotating disk, and an injection mechanism and a feeding mechanism are also included. The present invention sets an injection mechanism, and the operation of the motor drives the movable seat to slide on the outer wall of the cross bar, and the displacement of the movable seat drives the injection pipe to move; the displacement of the movable seat drives the spur gear to move along the outer wall of the toothed plate, thereby driving the spur gear to rotate, and the rotation of the spur gear drives the injection pipe to rotate; the oxygen in the air intake pipe moves into the cross bar, and when the air intake moves into the movable seat, the C-shaped block is displaced to cancel the shielding of the air intake, and the oxygen is ejected through the air jet, so that the injection pipe automatically rotates while reciprocating in the degradation pool, and the air jet sprays oxygen into the degradation pool, so that the oxygen in the degradation pool is evenly distributed.

The invention discloses a novel biofilm treatment method for xanthate pollution in flotation wastewater, comprising the following steps: using tailings pond sediments taken from heavy metal mine pollution sites, using selective culture medium to screen and enrich xanthate degradation functional bacteria therefrom, and performing subculture; injecting xanthate functional degradation bacteria into a membrane aeration biofilm reaction system, using mineral processing wastewater containing xanthate as a matrix, passing oxygen-containing gas, and culturing biofilm; when the xanthate concentration in the system effluent of the membrane aeration biofilm reaction system drops below 1.0 mg / L, the enrichment of biofilm is completed; based on the xanthate degradation efficiency of the biofilm under different environmental parameters, determining the optimal operation strategy for the membrane aeration bioreactor system; and based on the optimal operation strategy, passing mineral processing wastewater for in-situ biological treatment, and returning the treated reused water to the mineral processing workshop for reuse. The method is green, environmentally friendly, and economical, does not generate secondary pollution, and efficiently and completely treats xanthate.

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.

The invention discloses an integrated process for cooperative treatment and up-to-standard discharge of industrial wastewater and domestic wastewater of a power plant, and relates to the field of cooperative treatment of wastewater and sewage, and the integrated process comprises the following steps: configuring a raw water collection system, setting a raw water source, configuring a multi-stage filtration and heating pretreatment process, configuring an ultrafiltration membrane system, and setting a fine filtration path. A first-stage reverse osmosis system is configured, reverse osmosis parameters are set, a second-stage reverse osmosis system is configured, a low-conductivity water treatment path is set, a mixed ion exchanger is configured, a desalted water output path is set, a standby pool body is set, and the adjusting capacity is set. A raw water collecting system, a multi-stage filtering and heating pretreatment process, an ultrafiltration membrane system, a first-stage reverse osmosis system, a second-stage reverse osmosis system, a mixed ion exchanger and a standby pool body are sequentially arranged in the process. The problems of unstable effluent quality, insufficient deep desalination capability and poor emergency regulation capability in a traditional power plant wastewater treatment mode can be effectively solved.

The invention relates to the technical field of sewage treatment, in particular to a distributed rural sewage treatment station intelligent optimization method and system. According to the method, firstly, the water quality parameters and the operation parameter data are collected and cleaned, the preprocessed feature data are input into the prediction model to obtain the prediction result, the prediction result is compared with the real-time operation data to obtain the deviation data, and the model parameters are dynamically optimized and issued according to the deviation data, so that the blindness of parameter setting in a traditional method is reduced; the control strategy can be adjusted in real time according to the actual operation condition, the operation cost is remarkably reduced while the effluent reaches the standard, and the treatment efficiency is improved.

This disclosure includes systems and methods for optimizing aeration in wastewater treatment. The techniques described herein include receiving data for a wastewater treatment plant, the data being descriptive of water quality over a period of time. The techniques further include developing a predictive model for future water quality based on the received data. The techniques also include determining, based on the predictive model, a plurality of DO setpoints and airflow rates for the wastewater treatment plant. The techniques further include controlling an aeration system for the wastewater treatment plant using the plurality of DO setpoints and the airflow rates.

The invention relates to the technical field of sewage treatment, in particular to an aeration device for sewage treatment, which comprises an aerator, an adjusting unit for adjusting the aeration rate according to the water quantity, and a treatment unit for cleaning and collecting scum on the water surface, the adjusting unit comprises an outer pipe for supplying air to the aeration machine, an inner pipe and an air inlet piece for controlling the inner pipe to supply air to the outer pipe. According to the invention, through the arrangement of the lower floating plate, the upper floating plate and the connecting floating plate, the inner pipe is driven to adjust the height, the situation that when the water level is relatively low, the air inlet pipe of the aerator is exposed and shakes under the influence of wind power in strong wind weather to cause damage is avoided, and meanwhile, the aeration rate of the aerator can be naturally adjusted according to the water quantity without manual adjustment, so that the aerator is more convenient; as the lower floating plate, the upper floating plate and the connecting floating plate float on the water surface, scum on the water surface can be collected and treated, meanwhile, leaves blown to the water surface in strong wind weather can be collected and treated, and the use effect is good.

The invention discloses integrated medical wastewater treatment equipment which comprises an aerator, and the aerator comprises an upper aeration disc, a middle aeration disc, a lower aeration disc, a spiral disc and an air inlet pipe which are sequentially connected and communicated from top to bottom; first aeration holes are formed in the top surface of the upper aeration disc, and second aeration holes are formed in the circumferential side surface of the upper aeration disc; a third aeration hole is formed in the top surface of the middle aeration disc, and a fourth aeration hole is formed in the circumferential side surface of the middle aeration disc; a fifth aeration hole is formed in the top surface of the lower aeration disc; the spiral disc is defined by an inner spiral surface, an outer spiral surface and an end surface, sixth aeration holes are formed in the outer spiral surface, seventh aeration holes are formed in the inner spiral surface, eighth aeration holes are formed in the joint of the inner spiral surface and the outer spiral surface, and the eighth aeration holes are distributed in the height direction. According to the equipment, bubbles generated by the aerators in the aerobic tank become finer, more balanced in distribution and larger in area.

The present application discloses an ecological floating bed, which relates to the technical field of sewage treatment, including a floating plate and a plurality of planting tubes, wherein a fixed plate is coaxially connected to the central area of ​​the top surface of the floating plate, the outer diameter of the fixed plate is smaller than the outer diameter of the floating plate, a support rod is coaxially arranged at the bottom of the fixed plate, the support rod vertically passes through the floating plate and extends downward, and a main counterweight is arranged at the bottom of the support rod; a plurality of planting tubes are evenly spaced and arranged circumferentially at the bottom of the floating plate near the outer ring, the planting tubes are placed vertically, the side walls of the planting tubes are hollow mesh-shaped, planting holes are vertically penetrated through the floating plate, the planting holes correspond one to one with the planting tubes, and the planting tubes are used to plant aquatic plants; a sailboard is arranged at the edge of the top surface of the floating plate, at least two sailboards are arranged and are symmetrically distributed relative to the center of the axis of the floating plate, and the sailboards are arranged radially along the floating plate. The present application has the effect of improving the purification capacity of the ecological floating bed.

The invention relates to the technical field of sewage treatment, and discloses a water treatment device based on biological ribbons, the water treatment device comprises a first treatment tank and a second treatment tank, the top of the second treatment tank is fixedly connected with a mounting rack, a plurality of ribbon parts are equidistantly mounted on the mounting rack, and aeration parts are mounted on the ribbon parts; according to the biological ribbon suspension device, the motor drives the vertical rotating shaft to rotate, drives the first fixing sleeve and the first eccentric shaft to rotate, and drives the second eccentric shaft through the transmission rod to enable the vertical rotating pipe to rotate in a reciprocating manner, so that the mounting cross rod and the biological ribbon are driven to swing in a reciprocating manner; the contact area of the biological ribbons and sewage is greatly increased, microbial flora can better adsorb and degrade pollutants in the sewage, the sewage treatment effect is remarkably improved, rotation and retention of the vertical aeration pipe are alternately carried out, the water mixing effect is enhanced, sufficient mixing of dissolved oxygen, nutrient substances and microorganisms is promoted, and the sewage treatment effect is improved. The self-cleaning capacity and the treatment efficiency of the water body are improved.

A microbial electrochemical filter and a method for using same to remove iron, manganese and ammonia nitrogen from underground water, which belong to the technical field of wastewater treatment. The filter and the method solve the problem of existing biological filters having poorer operation performance and stability under oligotrophic conditions. The microbial electrochemical filter comprises a cylinder (1), an electrochemical system, and a filter column (4), wherein the electrochemical system and the filter column (4) are arranged in the cylinder (1); the electrochemical system is arranged above the filter column (4); the filter column (4) consists of a carrier, a surface of which is covered with a biological film; and a water outlet (8) is provided in a lower portion of a side wall of the cylinder (1), and an overflow port is provided in an upper portion of the side wall of the cylinder (1). In the method, by means of an electro-oxidation process, some pollutants are removed before entering a filter column (4), thus reducing the bioremoval pressure in the filter column (4); the abundance and carbon sequestration capability of autotrophic microbes in a biological filter are enhanced by means of an electrochemical system, thereby providing an additional carbon source and an additional electron acceptor for the autotrophic biological filter, and prompting the growth and metabolism of biological communities; and the microbial electrochemical filter provides conditions for the growth of heterotrophic iron-manganese oxidizing flora, and achieves the generation and coverage of more iron-manganese active oxide films on the surfaces of filter materials.

The invention discloses printing and dyeing sewage treatment equipment with a filter screen cleaning function, which comprises a sedimentation tank for treating sewage, a partition plate is fixed in the sedimentation tank, the partition plate divides the sedimentation tank into a physical treatment cavity and a biological treatment cavity, and a through hole for sewage circulation is formed in the partition plate; a rotating shaft capable of rotating transversely penetrates through the partition plate, and a motor for driving the rotating shaft to rotate is mounted at the upper end of the sedimentation tank; the rotating shaft is divided into two parts by a partition plate, and a collector for filtering sewage and a mixer for mixing the sewage are respectively arranged on the two parts of the rotating shaft. According to the invention, suspended matters in sewage can be blocked by the filter strip, the rotating filter strip changes the matching position with the through hole, the suspended matters are easily separated from the filter strip, the outer side fan plate pushes the sewage to move towards the rotating shaft, the filter strip adheres to the suspended matters and moves into the annular hole, the suspended matters are remained in the receiving box, and the number of times of cleaning the suspended matters is reduced.

The utility model discloses an MVR (mechanical vapor recompression) concentrated solution treatment device, which belongs to the field of wastewater treatment and comprises a first coagulating sedimentation device, a second persulfate advanced oxidation device, a second persulfate adding device for adding persulfate into the second persulfate adding device, a third biochemical treatment device, a fourth membrane treatment component and a fifth clear water tank. Wherein the MVR concentrated solution to be treated can be fed into the first coagulating sedimentation device. The first coagulating agent adding device is connected with the first coagulating sedimentation device, and the first coagulating agent adding device is used for adding a coagulating agent into the first coagulating sedimentation device, so that the MVR concentrated solution is flocculated and settled, and first coagulated sludge and first coagulated supernate are respectively obtained. The method can be suitable for MVR concentrated solution treatment scenes with different scales and treatment requirements, the wastewater treatment efficiency is improved, the treatment cost is reduced, efficient and stable treatment of wastewater can be achieved, and the method has high application value and wide popularization and application value.

The invention discloses an urban road rainwater runoff stage treatment system and method, and relates to the technical field of urban rainwater pollution treatment. In order to solve the problems that an existing system is difficult to monitor multi-index water quality in real time, the pollution degree is accurately recognized, and distribution control lacks dynamics, the system is provided with a multi-source spectrum water quality monitor at the tail end of a pipe network, turbidity, COD, TOC and heavy metal concentration are monitored in real time, rainfall intensity data are accessed into a control center, the pollutant load instantaneous rate L is calculated through a weighted summation formula, and the real-time monitoring of the pollution degree is achieved. A controllable flow distribution module in the flow distribution well distributes the rainwater to an enhanced treatment unit, a biological aerated filter system or a horizontal flow sedimentation tank, wherein the enhanced treatment unit comprises a rotational flow sand setting unit, an electrochemical heavy metal degradation unit and a chemical flocculation unit. The system is mainly used for realizing quality-divided efficient treatment and resource recycling of rainwater and guaranteeing the safety of a receiving water body.

The invention relates to the field of sewage treatment equipment, in particular to an organic wastewater treatment device and a treatment method thereof, and provides the organic wastewater treatment device and the treatment method thereof aiming at the problem that the decomposition of organic matters is influenced by impurity aggregation in the prior art. A first feeding channel, a mixing chamber and a second feeding channel are sequentially arranged in the box body from left to right, partition plates are fixedly connected between the mixing chamber and the first feeding channel and between the mixing chamber and the second feeding channel on the two sides respectively, filter plates are fixedly connected to the inner sides of the partition plates respectively, and scraping plates capable of rotating synchronously are rotationally connected to the two ends of the filter plates respectively. Under the rotation of the scraping plate, sewage can be stirred, mixing of the sewage and the biological stuffing rod is promoted, large-particle impurities and aggregated impurities can be crushed under the rotation of the scraping plate, the large-particle impurities and the aggregated impurities are fully mixed with the sewage, the oxygen content of the sewage can be increased, and the functions of sewage denitrification and decomposition of organic matters in the sewage are achieved.