1619results about "Sedimentation separation" patented technology

Filter installations for suspended matter in flowing fluids, including filtration methods, uses and equipment and plants with filter installations. A device reducing the specific particle count of suspended matter by means of an energy input using ultrasound waves stabilized with electronic feedback loops and their harmonics in the fluids or in objects attached thereto. A flow pipe having a wall, which, on its outer side, its inner side, and / or in the wall has pairs of mutually opposite exciters of longitudinal waves and their harmonics, and / or reflectors, opposite the exciters of the flow pipe to a filter, which keeps the specific particle counts of the suspended matter in the filtered fluids to below the detectable limit.

The invention specifically discloses a chromatographic grade acetonitrile production process, which comprises the following steps: pretreatment, primary adsorption, azeotropic distillation, secondary adsorption, suspended solid particle sedimentation by alum, and precipitation of a complex through EDTA under the condition of low water content to remove most insoluble and soluble impurities in acetonitrile. Oxidizing small molecular impurities and oxidizing organic impurities with the boiling point lower than or similar to that of acetonitrile, so that the impurities become high-boiling-point substances, and removing the high-boiling-point substances through rectification; the method comprises the following steps: carrying out primary adsorption on acetonitrile to remove an oxidant, carrying out azeotropic distillation to obtain rectified acetonitrile containing a very small amount of water and organic impurities, and carrying out adsorption treatment on the rectified acetonitrile again to obtain high-purity acetonitrile with the content of 99.99% or more, the ultraviolet absorbance at 190nm as low as 0.195, the ultraviolet absorbance at 200nm as low as 0.009 and the ultraviolet absorbance at 254nm as low as 0.002.

An apparatus comprises one or more solids separators to be positioned downhole in a well formed in a subsurface formation, wherein each of the one or more solids separators are configured to receive a fluid from the subsurface formation and separate out sediment from the fluid, wherein the sediment is transported after separation to a destination location.

A mechanical-agitation-based continuous sludge discharge method and system for a water clarifier. The method comprises: acquiring an amount of water, which is to be clarified, in a water clarifier, and adding a flocculant into the water clarifier according to the amount of said water; setting an initial operation rotation speed of an agitator according to the addition amount of the flocculant, acquiring real-time data of the interior of the water clarifier, adjusting the initial operation rotation speed, and ending the agitation with an adjusted operation rotation speed; leaving the water clarifier standing still for a period of time, then acquiring a real-time precipitation amount of large-particle coagula by means of a pressure sensor, and setting an initial valve opening degree and an opening duration of a sludge discharge valve; and acquiring a pressure change rate of the pressure sensor, correcting the initial valve opening degree, and ending the sludge discharge with a corrected valve opening degree. In the present application, agitation and sludge-discharge operations are precisely controlled, such that the treatment effect of a water clarifier is improved, an increase in water turbidity and waste of water resources are reduced, and the maintenance costs and the requirements for manual intervention are also reduced.

A deep neural network-based energy-saving control method for a sedimentation tank sludge scraper, comprising: acquiring turbidity information, operating parameters and temperature information in a sedimentation tank, and inputting same into a deep learning neural network model to acquire prediction results of a sludge level and starting time of a sludge scraper, thereby controlling the starting and stopping of the sludge scraper. The deep learning neural network model comprises a convolutional neural network sub-model and a long short-term memory network sub-model, the convolutional neural network sub-model is used for adaptively extracting local features of water quality on the basis of received turbidity information, operating parameters and temperature information, and the long short-term memory network sub-model is used for performing secondary feature extraction on the extracted local features of the water quality to acquire time-series information of the features, and ultimately outputting the prediction results. The method allows for identification of a sludge level and prediction of starting time of a sludge scraping plate, has a certain anti-interference capability, and ultimately achieves automatic control of the starting and stopping of the sludge scraping plate, saving energy.

The invention relates to ore pulp mother liquor separation equipment, and belongs to the technical field of ore pulp treatment. Comprising an equipment body which forms a cavity; the flow stabilizing assembly is arranged in the cavity in a sliding mode; the cavity is divided into a first cavity body and a second cavity body which are independent from each other by the flow stabilizing assembly; the first cavity is connected with a liquid inlet assembly; the flow stabilizing assembly floats along the axis of the equipment body under the control of the liquid level height of the mother liquid in the first cavity; the second cavity is provided with an air pressure control assembly, the air pressure control assembly is configured to release air in the second cavity, and the air release flow Q is in negative correlation with the pressure P in the second cavity; and the ultrasonic assembly is arranged at the bottom of the equipment body. Under the condition of high liquid level, the flow stabilizing assembly can more effectively inhibit the fluctuation of the liquid level, so that the mother liquor separation process is stable and efficient, and the problem of poor separation effect caused by the fluctuation of the liquid level due to ultrasonic waves in the prior art is solved.

The invention relates to the technical field of coal washing equipment, in particular to a lifting type peripheral transmission rake thickener operation system for coal washing, which comprises a working condition sensing module used for collecting slime water concentration, rake frame torque, slag layer thickness and equipment operation temperature data; the intelligent decision-making module is used for constructing a slime water sedimentation prediction model through an LSTM-GRU hybrid algorithm according to the data, and generating an equipment operation regulation and control instruction; the lifting transmission regulation and control module is used for adjusting the vertical height of a rake frame according to a regulation and control instruction to adapt to different slag layer thickness treatment requirements, and meanwhile, combining real-time feedback of the torque of the rake frame, dynamically adjusting the rotating speed of a peripheral transmission motor and optimizing coal slime and water separation conditions; and the safety early warning module is used for monitoring parameter mutation through a sliding window algorithm, and triggering corresponding strategies of different levels when the harrow torque and the slime water concentration exceed multiple groups of adaptability thresholds. Therefore, the problems that in the prior art, the height of the rake frame is fixed, regulation and control depend on manpower, and an early warning mechanism is extensive are solved.

The invention relates to the technical field of three-dimensional model construction, in particular to a three-dimensional model construction method of green low-carbon ecological dredging equipment. The method comprises the following steps that a water body sludge sample is collected and subjected to particle screening, particle grading data is generated, then sludge characteristics are analyzed based on the data to obtain sludge characteristic data, historical dredging data are obtained, the dredging state is analyzed, a preferable dredging method is matched, boundary constraint analysis is carried out, and component boundary conditions are determined; the method comprises the following steps: designing the configuration of a desilting component, carrying out three-dimensional modeling, generating a desilting unit component, analyzing the flocculation requirement of sludge characteristic data, generating a solidification unit component, carrying out transportation simulation, obtaining simulated transportation data, laying components according to the data, generating a transmission unit component, integrating a desilting unit, a solidification unit and the transmission unit component, and carrying out transportation simulation. And a complete three-dimensional dredging equipment model is constructed. The three-dimensional model construction method of the dredging equipment is more efficient.

The present invention discloses a down washing sewage treatment system, which relates to the technical field of sewage treatment, and comprises a sedimentation tank, wherein a water inlet pipe and a drain pipe are respectively arranged on both sides of the sedimentation tank, the water inlet pipe is located at an upper position, and the drain pipe is located at a lower position, and a stirring component for stirring and treating the down washing sewage is arranged inside the sedimentation tank. The down washing sewage treatment system significantly improves the stirring efficiency and makes the treatment process faster through the dual stirring mode of revolution and rotation of the stirring paddle, and the stirring efficiency is significantly improved, and the treatment process is made faster. This stirring mode not only promotes the chemical reaction, physical precipitation or biodegradation process in the sewage, but also helps to remove harmful substances in the sewage and improve the water purification effect; through the combination of revolution and rotation, the stirring paddle can cover a larger area in the sedimentation tank, reduce the stirring dead angle, ensure that each part of the sewage can be fully stirred and treated, and thus improve the uniformity of the overall treatment.

The invention relates to the technical field of water treatment, in particular to a composite flocculant for tunnel construction wastewater treatment and a preparation method thereof. The method comprises the following steps: carrying out a reaction on triethanolamine and isocyano ethyl methacrylate to prepare tertiary amine acrylate; reacting tertiary amine acrylate with methoxyl-polyethylene glycol-chlorine to prepare polyethylene glycol modified quaternary ammonium salt acrylate; further reacting with methyl dichlorosilane to prepare a modifier; and compounding the modifier with hydrotalcite, sodium silicate and an iron-magnesium-calcium mixed solution to prepare the composite flocculant. The flocculant realizes efficient flocculation and pH regulation through mechanisms such as electric neutralization and adsorption bridging, has the characteristics of quickly gathering suspended particles, reducing sludge yield and improving floc compactness and dehydration performance, is suitable for treatment of high-concentration suspended solids and slightly alkaline wastewater, shows comprehensive advantages of high efficiency, economy and environmental protection, and has wide application prospects. The field treatment requirements of tunnel construction wastewater are met.

The invention discloses a deep-cone thickener rake frame driving method and system based on a permanent magnet motor, and belongs to the technical field of mine solid waste disposal and filling, and the method comprises the following steps: collecting real-time operation parameters of the permanent magnet motor, the real-time operation parameters including stator current, voltage, rotating speed and output torque; based on the output torque, whether the deep-cone thickener is in a rake pressing state or not is recognized, and when the deep-cone thickener is in the rake pressing state, the reference rotating speed of the permanent magnet motor is controlled to be reduced; the real-time temperature of a stator winding and a rotor permanent magnet area in the permanent magnet motor is obtained, and when the real-time temperature is higher than a preset threshold value, the output power of the permanent magnet motor is controlled; acquiring historical load data of the deep-cone thickener, and modeling the historical load data and the output torque to obtain a historical load-torque model; and constructing a torque change prediction model based on the historical load-torque model, predicting future torque data by using the torque change prediction model, and identifying an impending rake pressing risk.

The utility model relates to the technical field of water purifiers, and discloses a water purifier with a sterilization function, which comprises a precipitation water tank and a heating water tank, one side of the precipitation water tank is fixedly connected with a water inlet in a penetrating manner, the other side of the precipitation water tank is fixedly connected with a water delivery pipe in a penetrating manner, and a precipitate collecting plate is inserted into the lower part of the precipitation water tank in a sliding manner; sliding rails are fixed to the positions, at the bottom end of the sediment collecting plate, of the inner walls of the two sides of the sediment water tank, fixing columns are symmetrically fixed to the positions, above the sediment collecting plate, of the outer side face of the sediment water tank, and clamping grooves are correspondingly fixed to the positions, below the two fixing columns, of the outer wall of the sediment water tank. The clamping plate is pulled out of the clamping groove by pulling upwards, then the limiting of the sediment collecting plate can be relieved by rotating, the sediment collecting plate can be pulled out of the inside of the sediment water tank, and the inside of the sediment collecting plate can be cleaned after the sediment collecting plate is pulled out.

The invention discloses an abnormal working condition online adjusting and processing system of a long-distance pipeline conveying slurry concentration system. The abnormal working condition online adjusting and processing system comprises an upstream incoming material pipeline, a feeding collection box is arranged below an outlet of the upstream feeding pipeline; an emergency pipeline with the tail end leading to the ore pulp distribution box is further communicated with the upstream feeding pipeline between the feeding concentration meter and the flow meter, and an emergency pipeline switch electric valve is arranged on the emergency pipeline; a thickener is arranged below the outlet end of the feeding collection box; the lower end of the thickener is communicated with an inlet of the underflow pump through an underflow pump inlet pipeline; an outlet of the underflow pump is communicated with an underflow pump outlet pipeline, the tail end of the underflow pump outlet pipeline is divided into two paths, one path is a self-circulation pipeline leading to the feeding collection box, and the other path is a normal pulp conveying pipeline leading to the pulp distribution box; the invention further discloses a corresponding processing method. Through diagnostic analysis and targeted treatment of abnormal working conditions of the concentration system, safe and stable operation of the concentration system is ensured, rake pressing of the thickener can be effectively avoided, and investment is saved.

The invention discloses a resource regeneration method of waste lubricating oil, relates to the technical field of petrochemical engineering, and belongs to the patent classification number C10M175 / 06. The preparation method comprises the following steps: adding a composite flocculant into the waste lubricating oil, heating and stirring, and then carrying out magnetic separation to obtain pretreated waste lubricating oil; uniformly mixing the pretreated waste lubricating oil, glycerol and a Ni / Al2O3 catalyst, then heating and reacting under pressure, and cooling to room temperature to obtain a catalytic hydrogenation product; and carrying out reduced pressure distillation on the catalytic hydrogenation product, recovering the lubricant base oil fraction, adding methanol and concentrated sulfuric acid into the distillation residual liquid, heating for esterification reaction, and separating the liquid to obtain the biodiesel. In the pretreatment process, the composite flocculant is used for removing acid and particle impurities in the lubricating oil, a traditional alkali adding neutralization precipitation process is replaced, the method is environmentally friendly, and the recovery cost of enterprises is reduced.

Methods, apparatus, and systems are provided for detecting and removing microplastics from wastewater effluent. Both, automatic / remote and manual monitoring and sampling components are included to detect the presence of microplastics. The automatic monitoring and sampling component includes a TSS sensor and associated apparatus calibrated to account for non-plastic solids present in the wastewater and, thereby, more accurately determine the presence of microplastics. Efficient separation and removal of microplastics from wastewater effluent is performed by a specialized capture net apparatus having multiple sized mesh components and optional diffuser devices which perform size exclusion filtration of microplastics from the water. In an exemplary embodiment, the methods generally include diverting treated wastewater effluent from a wastewater treatment facility's main line into a wastewater sampling mechanism via an intake pipe, and then into a solids monitoring and separation mechanism which includes the specialized capture net apparatus.

Provided is a hydrogen sulfide removing agent that can be stably used while maintaining hydrogen sulfide removing ability equivalent to that of a hydrogen sulfide removing agent comprising an amorphous iron oxyhydroxide. This iron oxyhydroxide-based hydrogen sulfide removing agent contains amorphous iron oxyhydroxide and a crystalline component. The content of the amorphous iron oxyhydroxide is not less than the content of the crystalline component.

A device and method for assembling objects by generating an axial acoustic radiation force in order to position the objects on pressure nodes and / or antinodes and generating a transverse acoustic radiation force in order to move the thus positioned objects on a porous membrane contact structure.

The invention belongs to the technical field of flocculant adding, and particularly relates to a flocculant adding device of a medium-large mineral separation deep-cone thickener, which comprises a mixing tank, a bottom frame is fixedly mounted at the bottom of the mixing tank, a first storage box and a second storage box are mounted on a guide rod at the top of the bottom frame, and a first pumping pump is fixedly mounted at the top of the first storage box; a second pumping pump is fixedly installed at the top of the second storage box, a feeding assembly is arranged at the bottom of the bottom frame, a driving motor is fixedly installed at the top of the mixing tank, and a driving rod is rotationally arranged in the mixing tank. According to the flocculant adding device of the medium-large mineral separation deep-cone thickener, mixed liquid can conveniently flow to different positions of the mixing tank to be mixed through the spray holes and the movable ring, so that the mixing efficiency of a flocculant is improved, when the flocculant is mixed and prepared, a driving rod rotates to drive a driving wheel to rotate, the position of the movable ring is adjusted, and the flocculant adding effect is improved. Therefore, the mixed liquid can flow to different positions to be mixed, and the mixing efficiency is improved.

The utility model provides a metal product chromium plating solution impurity removal device, which relates to the technical field of chromium plating solution impurity removal devices, and comprises a barrel body, a barrel cover is arranged on the barrel body, a rotating shaft is rotatably connected onto the barrel body, the rotating shaft is a hollow pipe, a filter cartridge is arranged on the rotating shaft, and the filter cartridge is provided with a filter screen. Two stirring rollers are rotationally connected to the barrel cover, a fixing plate is fixedly connected to the barrel cover, a first motor is fixedly connected to the fixing plate, an output shaft of the first motor is fixedly connected with one stirring roller, and first belt wheels are fixedly connected to the two stirring rollers; according to the utility model, the problems that the workload of a worker is increased and the impurity removal efficiency is reduced due to the fact that the filtering barrel is easy to block in the long-term use process, the filtering effect is influenced, the worker needs to take down the filtering barrel at regular intervals for cleaning, and the process of repeatedly disassembling and assembling the filtering barrel is tedious are solved.

The invention discloses a processing technology of a quinoa seedling bud green juice bubble functional beverage, and belongs to the technical field of beverage processing. Comprising the steps of raw material pretreatment, crushing and juicing, filtration treatment, enzyme deactivation treatment, blending, sterilization treatment and carbonation treatment. In the filtering process, a product obtained after juicing is filtered through a 200-400-mesh filter screen and then filtered through a filter material; the filter material comprises modified PVDF (polyvinylidene fluoride), modified chitosan, modified MOFs (metal organic frameworks) and modified titanium dioxide. The modified MOFs are obtained by acetylating MOFs and then modifying the MOFs with a silane coupling agent; the modified PVDF is obtained by sequentially grafting sulfobetaine metacrylic acid ester, polyethylene glycol metacrylic acid ester and alkyl acrylate on PVDF; the modified chitosan is obtained by sequentially grafting PEG-acrylic acid and methyl methacrylate to chitosan; the modified titanium dioxide is obtained by modifying titanium dioxide through a silane coupling agent. The chenopodium quinoa seedling buds are made into the bubble functional beverage, so that the beverage is endowed with good taste; the filter material can reduce loss of protein and polyphenol and effectively retain nutritional ingredients.

The utility model relates to a safe operation protection system of a non-metal mud scraper and a mud scraping system. The safe operation protection system of the non-metal mud scraper comprises a scraper detection device, a tension early warning device and an electrical control system, the scraper blade detection device comprises at least one group of scraper blade detection devices, each group of scraper blade detection devices comprises two scraper blade detection devices which are oppositely arranged, each scraper blade detection device is connected with the electrical control system, and the scraper blade detection devices are used for being in contact with the two side ends of a scraper blade; the tensioning force early warning device comprises two opposite tensioning force early warning devices, each tensioning force early warning device is connected with the electric appliance control system, and the tensioning force early warning devices are used for making contact with the first chain wheel. The system can timely identify the faults such as asynchronous deviation and chain breakage of the two sides of the scraper.

The invention discloses a device and method for recovering rare earth in yttrium lutetium silicate crystals, and relates to the technical field of yttrium lutetium rare earth recovery, the device comprises a rear vertical plate, a top plate, a middle plate and a workbench, the top of the top plate is rotatably connected with a first centrifugal cylinder, and the top of the middle plate is rotatably connected with a second centrifugal cylinder; and a switch valve is additionally arranged at the top of the first centrifugal cylinder. One of the core structures is the recycling barrel, the multifunctional composite assembly is arranged in the recycling barrel, and when the filter screen disc in the recycling barrel needs to be cleaned, the multifunctional composite assembly can automatically dredge blocked meshes of the filter screen disc through the weight when the recycling barrel is turned over; meanwhile, the multifunctional composite assembly can make the recycling barrel stop entering a to-be-treated water phase; when the recovery cylinder is turned over, the assembly can automatically dredge the blocked meshes of the filter screen disc by utilizing the self weight, so that the manual maintenance cost is reduced, and the self-cleaning capability of the equipment is improved.

The invention relates to a method for extracting lithium from a salt lake and synchronously removing silicon and boron. The method comprises the following steps: pre-treating and filtering lithium-containing brine; carrying out reverse osmosis concentration treatment to concentrate lithium to be more than 2.5 g / L; carrying out nanofiltration treatment to remove magnesium, calcium and sulfate ions; treating by adopting an electrodialysis system to obtain a high-silicon and high-boron desalted solution and a low-silicon and low-boron lithium concentrated solution; the low-silicon and low-boron lithium concentrated solution is treated with chelating resin and boron removal resin, so that magnesium and calcium ions are smaller than or equal to 2 mg / L, boron is smaller than or equal to 20 mg / L, and the refined lithium concentrated solution is obtained; concentrating by an evaporation system, adding a precipitant, precipitating, filtering, washing, crushing and demagnetizing to obtain a low-silicon low-boron battery-grade lithium carbonate product. The invention further discloses a system for extracting lithium from the salt lake and synchronously removing silicon and boron, the complex and low-efficiency boron removal and silicon removal nanofiltration process is adopted, and concentration of lithium and efficient removal of silicon and boron are synchronously achieved; silicon scaling pollution caused by membrane separation and heat exchanger tube nests is avoided, and deep removal of silicon and boron is realized.

A process for producing a polyacrylamide functionalized activated carbon product includes grafting an atom transfer radical polymerization (ATRP) initiator to an activated carbon product, to yield an activated carbon macroinitiator, and from the activated carbon macroinitiator, performing surface-initiated (SI) activators generated by electron transfer (AGET) atom transfer radical polymerization (ATRP) of acrylamide monomers, to yield the polyacrylamide functionalized activated carbon product. A flocculant for mature fine tailings includes a polyacrylamide functionalized activated carbon product. A process for flocculation of mature fine tailings includes adding a polyacrylamide functionalized activated carbon product to a slurry of mature fine tailings, and allowing the polyacrylamide functionalized activated carbon product.

The utility model relates to the technical field of sewage treatment, and provides an inclined tube flushing device which comprises a treatment pond, an inclined tube is fixedly installed on the inner side of the treatment pond, a mud scraper is arranged on one side of the inclined tube, and the mud scraper comprises a connecting frame, a connecting plate, a first scraper blade and a second scraper blade. A cleaning assembly is fixedly connected to the top face of the first scraping plate and comprises a first supporting rod, a connecting rod, a shifting plate and a second supporting rod. When the scraping plate of the mud scraper moves back and forth at the bottom of the treatment tank to scrape mud along with the driving of external driving equipment, the stirring plate can be driven by the supporting rod to move back and forth below the inclined pipe, and water flow can be stirred through the reciprocating movement of the stirring plate, so that the flow speed of the water flow entering the inner side of the inclined pipe is accelerated; meanwhile, the stirring plate is far away from the bottom of the treatment tank, so that the influence on the sedimentation of the sludge at the bottom of the tank is avoided when the water flow is stirred, and the practicability is high.

To provide a new technology capable of sufficiently reducing fluorine concentration in waste water when removing fluorine in waste water using a calcium salt.SOLUTION: A coagulant for treating calcium fluoride containing ettringite coagulates calcium fluoride in waste water containing calcium fluoride.SELECTED DRAWING: Figure 1

The invention discloses a preliminary purification device for cosmetic production, and relates to the technical field of cosmetic production. The top of the device body is fixedly connected with a conveying pipe. The filtering membrane is located in the purification box body, plant stock solution can be collected only after being filtered by the filtering membrane when entering the purification box body, so that the purity of the stock solution is improved, part of plant residues are removed, and the two ends of the filtering membrane are wound in the winding box body respectively, so that the purification effect of the plant stock solution is improved. When it is monitored that the surfaces of the filtering membranes start to be blocked, the filtering membranes in one winding box start to be wound and cleaned through the cleaning assembly, after winding is in place, the filtering membranes in the other winding box start to be wound, the filtering membranes are alternately used for filtering the stock solution, the stock solution filtering time is saved, equipment does not need to be paused for replacing the filtering membranes, and the working efficiency is improved. In the moving and cleaning process of the filtering membrane, the passing rate of the stock solution is improved, and the production and purification efficiency is further improved.

The invention discloses a flocculation-controllable genetic engineering alga and a construction method and application thereof, and is characterized in that the genetic engineering alga is phaeodactylum tricornutum into which an enabling plasmid pPha-J47869-EG01992-eGFP-FSP is introduced, the FSP is directionally expressed on the outer side of a phaeodactylum tricornutum cell, and the construction method comprises the following steps: constructing an induced expression plasmid pPha-J47869-eGFP and a directional expression plasmid pPha-J47869-EG01992-eGFP; artificially synthesizing a codon-optimized FSP coding sequence, inserting the codon-optimized FSP coding sequence into the downstream of the eGFP of the directional expression vector, and constructing an enabling plasmid; finally, the enabling plasmids are electrically transformed into phaeodactylum tricornutum, an f / 2 plate culture medium is coated with the phaeodactylum tricornutum for culture, positive algae strains are screened and identified, and the gene engineering algae with controllable flocculation are constructed and have the advantages that the gene engineering algae can be efficiently combined with white carbon black, and the enabling process of microalgae is efficiently coupled with the culture and collection process of the microalgae.

The utility model discloses a suspension type center transmission mud scraper, which relates to the technical field of mud scrapers, and comprises a mounting rack, a movable sleeve is movably arranged in the middle of the bottom end of the mounting rack through a bearing, a mud scraping arm is fixedly arranged at the bottom end of the movable sleeve, a mud scraping plate is fixedly arranged on the lower surface of the mud scraping arm, and the mud scraping plate is fixedly arranged on the lower surface of the mud scraping arm. Two movable arms are movably arranged in the middle of the upper surface of the mud scraping arm through pin shafts, and a side scraping plate is arranged at one end of each movable arm. The movable sleeve is arranged below the mounting frame, the mud scraping arm and the mud scraping plate are arranged at the bottom end of the movable sleeve, the supporting arm is arranged above the mud scraping arm, the side scraping plate is arranged at one end of the supporting arm, mud scraping treatment on the inner wall of the sedimentation tank can be achieved through the side scraping plate, and the inner wall of the sedimentation tank can be scraped by adjusting the position of the supporting arm. The height of the side scraping plate can be adjusted, so that the device can scrape mud at different positions of the inner wall of the sedimentation tank.

The embodiment of the invention provides a sewage treatment method and device, and the method comprises the steps: obtaining water quality data of a target sedimentation tank, and calculating a water quality error based on the water quality data; according to the water quality error, a preset control algorithm is used for calculating a discharge control signal, and control parameters in the preset control algorithm are determined according to historical water quality errors; emission information corresponding to an emission mechanism of the target sedimentation tank is determined, the emission information is adjusted according to the emission control signal, target emission information is obtained, and the emission mechanism carries out sewage emission according to the target emission information. The discharge amount is dynamically adjusted according to the water quality change, the labor cost is reduced, discharge is automatically performed according to the target discharge information, and the water quality treatment efficiency of the sedimentation tank is improved.