1561 results about "Suspended matter" patented technology

The invention relates to the field of river pollution treatment, and discloses a water quality treatment method, system, equipment and medium based on a remote sensing inversion technology, and the method comprises the following steps: S1, collecting a hyperspectral remote sensing image of a to-be-monitored water body, the hyperspectral remote sensing image comprising chlorophyll concentration, suspended matter concentration and dissolved oxygen; s2, based on the hyperspectral remote sensing image, preprocessing the hyperspectral remote sensing image, including geometric correction, atmospheric correction, noise removal and waveband fusion, to obtain a preprocessed image meeting an inversion precision requirement; and S3, inputting the preprocessed image into a water quality inversion model, and obtaining pixel-level chlorophyll, suspended solids and dissolved oxygen concentration data based on physical radiation transmission. By combining the hyperspectral remote sensing image and the water quality inversion model, large-range, real-time and high-precision water quality monitoring and pollution zoning are realized, model parameters are dynamically updated, and the timeliness and precision of water quality treatment are improved.

The invention discloses a water heavy metal concentration simulation and prediction method, which comprises the following steps: integrating original monitoring data, hydrodynamic data, total suspended solids, image remote sensing data and human activity data, and generating a multi-source cleaning sequence data packet; executing cross-modal adsorption capacity estimation by using image remote sensing data in the data packet, inferring particle chemical composition and adsorption isotherm parameters from image textures, and generating a capacity feature packet containing an adsorption capacity upper bound; time-varying travel time is calculated based on the hydrodynamic data and the human activity data, causal alignment is performed on the capacity feature packet and the upstream signal, and a travel time alignment feature packet is generated; and in combination with metal fingerprint parameters, applying an adsorption capacity upper bound as a physical constraint on a form distribution constraint head, explicitly decoupling and predicting the form, and generating a prediction result packet. According to the method, the hydrodynamic physical mechanism and the particle adsorption chemical mechanism are deeply coupled, and the prediction precision and the physical consistency of the model under the unsteady state condition are improved.

The invention relates to the technical field of industrial wastewater deep purification, and discloses an industrial wastewater deep purification system based on nano catalytic membrane separation, which comprises a pretreatment module, a catalytic degradation module, a membrane separation module, an intelligent control module and a regeneration maintenance module which are sequentially connected according to a treatment flow, the pretreatment module adjusts the water quality of inlet water to a range suitable for subsequent treatment through pH adjustment and suspended matter interception, that is, the pH is 2-11, and the turbidity is less than or equal to 50NTU; the catalytic degradation module is used for decomposing organic pollutants and mineralizing refractory substances under the excitation of ultraviolet / visible light by utilizing the photocatalytic characteristic of a nano catalytic membrane. The TiO2 / WO3 heterojunction nano catalytic membrane is adopted, so that deep oxidation of refractory pollutants such as phenol and sulfonamide antibiotics is realized, finally, the COD removal rate of 98.7% is achieved, and compared with a traditional photocatalytic process, the energy consumption is reduced by 54%.

The invention discloses a system and a method for classified sewage treatment, and belongs to the technical field of environmental engineering and water treatment. The system comprises the following components: an intelligent water quality detection module, which is used for real-time and accurate monitoring of COD, BOD, ammonia nitrogen, total phosphorus, suspended matter concentration and heavy metal content; the sectional bioreactor realizes deep removal of nitrogen and phosphorus and efficient biological treatment by flexibly adjusting reaction conditions of each section; the intelligent flocculation control module is used for automatically and accurately adjusting the adding amount of a flocculating agent, and is combined with integrated operation of efficient inclined tube precipitation and sludge concentration, so that the water quality of discharged water is stable, and the medicament consumption is reduced; the ultrafiltration membrane bioreactor effectively removes residual suspended matters and colloids, and ensures that the effluent stably reaches the standard for a long time through the synergistic effect of catalytic ozonation; and the sludge treatment module is used for realizing collaborative optimization management of sludge reduction, recycling and energy recycling.

The invention discloses sewage treatment equipment and method for oil field thickened oil produced water. The equipment comprises pretreatment equipment, main body equipment, dissolved gas supply equipment and a water outlet pump. Main body equipment comprises barrel equipment, and a flotation cyclone used for achieving the functions of dissolved air flotation and cyclone separation at the same time, separating out large-particle suspended solids through centrifugal force difference and achieving floating of oil drops through microbubble adsorption surfaces is sequentially arranged on the inner portion of the barrel equipment from top to bottom. The coalescence filler layer is made of oleophylic and hydrophobic core-shell structure fibers, and emulsified oil is promoted to polymerize and break emulsion through surface energy difference; and the inclined plate sedimentation device adopts an inclined tube labyrinth surrounding structure, performs deep sedimentation by utilizing a laminar flow principle, and further removes oil drops formed after coalescence.

The invention relates to the technical field of industrial wastewater treatment, and discloses an efficient two-stage reverse osmosis petroleum coke water treatment system, which comprises pretreatment execution ends, a reverse osmosis core end, a concentration regeneration end and an intelligent control end which are commonly configured with a data feedback module. A step-by-step mechanism is established at the initial stage of wastewater treatment, quartz sand is adopted to intercept large-particle suspended solids, activated carbon is adopted to adsorb and degrade organic matters, softening resin is adopted to replace and remove scaling ions, ozone is adopted to catalyze, oxidize and decompose refractory pollutants, an oxidation-reduction potential dynamic regulation and control mechanism is innovatively introduced, and the dosage of an oxidizing agent is automatically regulated according to water quality and chemical quality; by means of the design, the blocking problem caused by high-hardness waste water is solved, the membrane is prolonged, the solution period is stably solved, the chemical cleaning frequency and agent consumption are reduced, a pollution early warning and closed response linkage mechanism is constructed, membrane damage caused by manual intervention delay is avoided, and the service life of membrane elements is prolonged and reduced.

The invention provides a low-carbon modular artificial wetland system and a carbon sink collaborative purification method thereof, and relates to the technical field of artificial wetlands, the low-carbon modular artificial wetland system comprises a modular box body, and a water inlet layer, a carbon sink layer and a purification layer which are sequentially arranged in the modular box body from top to bottom; the water inlet layer is used for filtering suspended matters through coarse sand; the carbon sequestration layer is used for adsorbing carbon dioxide through biochar and carbon sequestration microorganisms, and meanwhile, the carbon sequestration capacity is enhanced through the plant-microorganism synergistic effect; the purification layer is used for purifying a water body through an iron-based phosphorus removal material and a zeolite denitrification filler. The technical problems of low-carbon material selection, carbon sink potential excavation, renewable energy source coupling and greenhouse gas emission inhibition of an existing constructed wetland system are solved, the technical effects of efficient sewage purification and carbon emission reduction are achieved, and a carbon emission reduction closed loop of the whole life cycle is achieved.

The invention discloses a heavy metal sewage deep purification system integrating membrane separation and chemical precipitation, and relates to the technical field of sewage treatment.The system comprises a sewage primary treatment module, a water quality parameter acquisition module, a process parameter decision module, a precipitation reaction regulation and control module and a deep separation and purification module; through a combined structure of coarse and fine grids and a horizontal flow sedimentation tank in the sewage primary treatment module, large-particle impurities and suspended solids in sewage are removed, a stable water quality basis is provided for subsequent treatment, the water quality parameter acquisition module acquires parameter data in real time through a multi-sensor fusion array, and the water quality parameter acquisition module acquires the water quality parameter data in real time. Accurate data support is provided for technological parameter decision making, the technological parameter decision making module generates a control instruction of precipitant adding and membrane operation pressure through calculation based on real-time data and historical operation data, the accuracy and adaptability of the treatment process are ensured, and the accurate control strategy not only improves the removal efficiency of heavy metal ions, but also improves the removal efficiency of the membrane operation pressure. And the risk of membrane pollution is also reduced.

The utility model provides a waste liquid treatment device for coal gas desulfurization, belongs to the technical field of wastewater treatment, and aims to solve the problems that only part of suspended solids can be removed or the pH value can be adjusted during desulfurization wastewater treatment in the prior art, and collaborative removal of pollutants such as sulfides, ammonia nitrogen, heavy metals and the like cannot be realized. The device comprises a waste liquid pool, a reaction tank, a decomposition tank and an ultrafilter which are sequentially communicated through communicating pipes, the waste liquid pool is connected with a liquid inlet pipe and is internally provided with a filter plate with filter holes, a first stirring shaft with stirring blades driven by a first motor is arranged in the reaction tank, the top of the reaction tank is connected with a liquid adding pipe, a second stirring shaft with stirring blades driven by a second motor is arranged in the decomposition tank, one side of the decomposition tank is provided with an air blower connected with the decomposition tank through an oxygen supply pipe, and the top of the decomposition tank is connected with an exhaust pipe. The device realizes full-flow treatment of waste liquid, the filter plate removes large impurities to prevent blockage, stirring promotes chemical reaction, oxygen supply and stirring improve microbial activity, the ultrafilter ensures effluent quality, efficient and continuous treatment can be realized, and pollution is reduced.

The invention provides a rapid detection method for water pollutants, which comprises the following steps: removing large-particle impurities and suspended solids in a water sample to be detected to obtain a target water sample; the method comprises the following steps: synchronously detecting multiple pollutant indexes of a target water sample through a multi-source sensor array to generate an initial detection data set; performing noise filtering and baseline correction on the initial detection data set to generate a target detection data set; performing space-time dimension dynamic fusion and feature decoupling on the target detection data set to generate water quality pollutant data and dynamic risk assessment indexes; and constructing a multi-dimensional risk assessment report by adopting the water quality pollutant data and the dynamic risk assessment indexes. By adopting a dynamic gradient filtering technology, impurity interference is effectively removed, dynamic risk assessment of a time dimension is realized, the accuracy and reliability of detection in a complex water quality environment are remarkably improved, and rapid and accurate water quality pollutant detection and risk assessment are realized.

The invention discloses a wastewater pretreatment system based on intelligent control, the wastewater pretreatment system comprises a coagulation precipitator, a pulse impurity remover and an ultrafiltration device which are connected in sequence, wastewater is subjected to precipitation treatment by adding a coagulant, a plurality of anode plates and cathode plates are arranged in the pulse impurity remover, the anode plates and the cathode plates are alternately arranged, and the ultrafiltration device is connected with the coagulation precipitator. The anode plate and the cathode plate provide dynamic pulse current through a pulse intelligent control system; the water quality monitoring system monitors wastewater quality data in real time, and the pulse controller adjusts operation parameters output by the pulse power supply according to the wastewater treatment effect; and the ultrafiltration is used for removing suspended matters in the wastewater output by the pulse impurity remover. When the pretreatment system is used for treating the wastewater, the treatment effect is fed back in real time through the water quality monitoring system, and the pulse intelligent control system can be used for dynamically adjusting operation parameters in real time, optimizing the operation parameters, improving the treatment efficiency, saving the energy consumption, reducing the dosage of chemicals in the front-end coagulation precipitator and reducing the operation cost.

The invention discloses an enhanced metal-based composite water purifying agent and a preparation method thereof, belongs to the technical field of preparation of water purifying agents, and aims to solve the technical problem that the flocculation capacity and the stability of a composite water purifying agent in the prior art need to be further improved. The preparation method specifically comprises the following steps: preparing a water purifying agent skeleton dispersion liquid by using chitosan and sodium alginate; chitosan-sodium alginate is used as a porous framework, a polyphenol-multi-metal complex is loaded, a structure is enhanced through Ca < 2 + > crosslinking, then SiO2 is used for coating to improve acid and alkali resistance and stability, and finally PAC is introduced to realize rapid flocculation. In the preparation process, the organic framework, the metal complex and the inorganic coating layer are fully compounded through pH control and step-by-step dropwise adding, and the obtained composite water purifying agent can efficiently remove phosphorus, chromium and suspended solids in water and shows a remarkable synergistic purification effect and storage stability.

The invention belongs to the technical field of inter-cooling water treatment, and relates to a system and method for cooperatively treating inter-cooling water through multi-stage bypasses. Comprising a gradient filtering unit, a modified adsorption unit and a composite adsorption unit which are sequentially connected, a bottom outlet of the gradient filtering unit is connected with a bottom inlet of the modified adsorption unit; a top outlet of the modified adsorption unit is connected with a top inlet of the composite adsorption unit; the gradient filtering unit sequentially comprises a manganese sand layer and a quartz sand layer from top to bottom; the modified adsorption unit is filled with a coal gangue modified straw biochar material; the composite adsorption unit is internally filled with a microcapsule-embedded calcium alginate-vinasse biochar composite material. According to the invention, three-stage cooperative treatment of iron suspended matter interception, sulfate radical adsorption and iron ion chelation is realized, and low-cost, green and sustainable indirect cooling water deep purification is realized by using the solid waste-based functional material.

The invention relates to the technical field of industrial water treatment equipment, and discloses an intelligent flushing self-cleaning filter system for industrial water treatment. A dynamic suspended matter monitoring module of the system collects three-dimensional distribution data of deposits on the surface of a filtering medium in real time, and mixed deposition characteristics of suspended solids and oil stains are recognized through a multispectral imaging technology; the differential pressure trigger control module establishes a mapping relation between sediment thickness and fluid resistance according to the three-dimensional distribution data, and generates a cleaning trigger instruction when the real-time differential pressure data reaches a dynamic threshold interval; the spiral trajectory planning module analyzes the cleaning trigger instruction, and generates a composite motion trajectory containing a rotation angular velocity and an axial displacement rate in combination with the current position of a suction nozzle and a filter screen topological structure; the multi-mode flushing execution module synchronously adjusts torque output of a hydraulic motor and linear displacement of a piston cylinder based on the composite motion trail, so that a suction nozzle covers the whole effective filtering area of a filter screen along a spiral path.

The utility model relates to a treatment system for purifying high-salinity wastewater, which is suitable for treating high-salinity wastewater, particularly desulfurization wastewater of a coal-fired power plant and coal chemical wastewater. By combining efficient flocculation, ozone catalysis and membrane distillation technologies, a self-made chitosan-based flocculant is added in a flocculation stage, and suspended solids and heavy metal ions in wastewater are removed by utilizing good adsorption performance and flocculation capacity of the self-made chitosan-based flocculant; in the ozone catalysis stage, a self-made ternary composite catalyst is added, ozone decomposition is promoted, and organic pollutants are further removed; in the membrane distillation stage, a self-made antifouling and moisture-resistant composite membrane is used for efficient desalination and concentration, and finally efficient purification and recycling of the high-salinity wastewater are achieved. The process can significantly improve the wastewater treatment effect, reduce the concentration of salt and harmful substances in the wastewater, also reduce the operation cost, and is suitable for large-scale industrial wastewater treatment.

The invention belongs to the technical field of recycling of oily wastewater in water treatment, and provides a high-oil-content emulsified wastewater treatment process based on electrochemistry. Oil-containing wastewater enters the pretreatment unit, oil slick and suspended substances in water are removed through the pretreatment processes of filtration, air floatation, pH adjustment and the like, and the pH is adjusted to a proper range; the reacted oily wastewater enters an electrochemical device, and proper voltage is applied to an electrode, so that emulsified oil in the water is destabilized, and the purpose of demulsification is achieved; the oily wastewater enters an oil-water separation device, demulsified oil drops are coalesced, grow and float upwards, and recoverable oil is obtained on the upper layer of the device; after long-time operation, the water enters the regeneration unit, so that the electrochemical demulsification unit recovers good demulsification and oil removal effects. According to the invention, the treatment of various high-oil-content emulsified wastewater and the recovery of oil can be realized by regulating and controlling the voltage, and the method is suitable for electro-desalting wastewater, machining wastewater, cold rolling wastewater and the like.

The invention discloses a post-electroplating wastewater treatment system and treatment method with graded recovery, and relates to the technical field of electroplating wastewater treatment.The post-electroplating wastewater treatment system comprises a recovery cylinder, a primary separation unit, a chemical adding unit, a final-stage separation unit and a driving unit, and the recovery cylinder is used for mounting and fixing the primary separation unit, the chemical adding unit, the final-stage separation unit and the driving unit; the primary separation unit is used for separating greasy dirt and precipitated impurities, the chemical adding unit is used for separating suspended solids, the final-stage separation unit is used for separating organic matters and cleaning the inner wall, and when sewage enters the recycling barrel, the driving unit is used for controlling the primary separation unit to separate and recycle the greasy dirt and the precipitated impurities, and the chemical adding unit is used for recycling the suspended solids; organic matter separation and inner wall cleaning are carried out through the final-stage separation unit, and the influence on the separation and recovery efficiency is avoided.

The utility model discloses a biosafety cabinet capable of double-layer filtration, which comprises a cabinet body, an operation chamber is arranged in the cabinet body, and a bottom air duct is arranged at the bottom end of the operation chamber. By arranging the reducing pipe, the exhaust pipe, the exhaust outlet, the filter box, the exhaust filter, the air disc and the high alcohol, double-layer filtration of exhausted air is achieved, air can be exhausted into the reducing pipe through operation of the exhaust fan, airflow can be concentrated and pressurized through arrangement of the reducing pipe, meanwhile, the air is conveyed into the filter box, and the filtering effect is improved. The air disc divides air into a plurality of small bubbles and increases the contact area with the high-alcohol, the high-alcohol can kill bacteria in the air and adsorb particle dust and various suspended solids, then the air is conveyed into the air exhaust opening, secondary filtering is conducted when the air passes through the air exhaust filter, and the exhausted air is purified; therefore, the exhausted air does not carry germs, the environment is prevented from being polluted, and the use safety is improved.

The invention discloses a composite artificial wetland system, and relates to the technical field of artificial wetlands. The composite artificial wetland system comprises an ecological pool, and a surface flow wetland unit, a horizontal subsurface flow wetland unit, an internal circulation system unit and plant ecological buffer zone units around the wetland are arranged in the ecological pool; the surface flow wetland unit comprises a wetland water inlet pipe and a wetland water outlet pipe which are arranged on the two sides of the ecological pool respectively, a gravel layer and a medium-coarse sand planting layer are sequentially stacked and laid at the bottom of the ecological pool, and a submerged plant vallisneria natans community is planted on the medium-coarse sand planting layer; the invention solves the problems of single function, low treatment efficiency and the like of the traditional constructed wetland, has the advantages of prominent denitrification effect, good phosphorus removal and suspended matter interception effect, strong impact load resistance, low cost, easiness in maintenance, ecological friendliness, landscape fusion and the like, also has the advantages of initial rainwater interception and the like, and is wider in application range.

The invention discloses urban sewage deep purification equipment capable of dynamically intercepting and feeding back and a purification treatment method.The urban sewage deep purification equipment comprises a reaction tank, a reaction device is fixedly installed in the reaction tank, connecting pipes are symmetrically and fixedly installed on one side of the reaction tank, and one end of each connecting pipe is connected with the reaction device in a matched mode; the water inlet unit is fixedly mounted at the top of one end of the reaction tank. Through the arrangement of the start-stop mechanism, water inflow can be rapidly cut off, sewage and suspended solids are prevented from continuously flowing into the reaction tank, stable operation of the subsequent purification process is effectively protected, time can be bought for workers to clean the suspended solids in the filter frame, the frequency and strength of manual inspection are reduced, meanwhile, the water inflow time is accurately controlled, and the efficiency is improved. Equipment damage caused by excessive blockage of the filter frame can be avoided, the service life of the filter assembly is prolonged, the maintenance cost of the system is reduced, and efficient, stable and low-consumption operation of the whole sewage purification system is guaranteed.

The invention belongs to the technical field of sewage treatment, and particularly relates to a food wastewater and domestic sewage cooperative treatment method and system. According to the characteristics of suspended solids in the food wastewater, through combination of different flocculants and coagulant aids, the suspended solids in the wastewater are effectively separated, the load of a subsequent biochemical system is reduced, and the treatment effect of a food wastewater process is remarkably improved; suspended matters in the food wastewater or organic matters in the wastewater are decomposed and stabilized, and are used as a carbon source of a domestic sewage plant, so that the denitrification rate is equivalent to that of glucose, and effective utilization of resources is realized; waste heat in the food wastewater is used for heat preservation of the hydrolysis pool through the heat pump exchange device, the energy utilization efficiency is improved, and the operation cost and the carbon emission are reduced; by means of the system, the food-domestic wastewater treatment process is combined, food-domestic wastewater is cooperatively treated, and regional pollution and carbon reduction and resource recycling are jointly achieved.

The utility model provides a treatment system for wastewater with high ammonia nitrogen and low carbon nitrogen ratio, which relates to the technical field of wastewater treatment and comprises an aeration sedimentation tank group, a primary denitrification reactor, a water tank, a secondary denitrification reactor and a nitrification tank which are sequentially arranged along the wastewater treatment direction, the aeration sedimentation tank group is used for removing organic matters and suspended matters in the sewage, reducing the concentration of metal ions and adjusting the pH value of the sewage; the primary denitrification reactor is communicated with the aeration sedimentation tank group and is used for carrying out short-cut nitrification reaction and anaerobic ammonia oxidation reaction; the top of the water tank is communicated with the primary denitrification reactor, and the bottom of the water tank is communicated with the secondary denitrification reactor through a first pipeline; the second-stage denitrification reactor is used for carrying out denitrification reaction coupling short-cut denitrification reaction and anaerobic ammonia oxidation reaction, and the second-stage denitrification reactor is provided with a first water outlet communicated with the first pipeline and a second water outlet communicated with the nitrification tank. The treatment system can ensure that high-ammonia-nitrogen low-carbon-nitrogen-ratio wastewater treatment reaches the nanotube standard.

The invention belongs to the technical field of water quality parameter inversion, and particularly relates to a machine learning-based suspended matter concentration remote sensing inversion method and system, and the method comprises the steps: collecting a satellite remote sensing image and synchronous actual measurement suspended matter concentration data, and obtaining a space gridding water body remote sensing reflectivity matrix through radiometric calibration, atmospheric correction and water body mask. Reconstructing and denoising through wavelet decomposition, and normalizing and standardizing the spectrum to obtain a spectrum numerical sequence; multi-scale waveband combination and differential features are constructed based on the sequence, and sensitive features are screened out by using XGBoost. A physical constraint term is constructed in combination with sensitive characteristics and a water body radiation transmission rule, and an intermediate inversion result is obtained through numerical iteration. And performing deviation compensation on an intermediate result by using a deep learning residual error, and finally performing spatial smoothing, consistency verification and high-concentration saturation optimization to obtain a high-precision and spatially continuous suspended matter concentration spatial distribution result. According to the method, efficient feature mining and physical mechanism deep fusion are realized, and the explanatory and generalization ability of the model is greatly improved.

The utility model relates to the technical field of wastewater treatment, in particular to a high-temperature evaporation demulsification device for emulsion wastewater treatment, which comprises a high-temperature treatment box, a solid particle storage box arranged at the tail end of the high-temperature treatment box, a solid particle scraping structure arranged above the high-temperature treatment box, and a bubble generation rapid reaction structure arranged in the high-temperature treatment box. And the bubble generation rapid reaction structure comprises an air compression assembly, an air inlet assembly and a hollow-core bubble plate, the tail end face of the high-temperature treatment box is symmetrically communicated with quantity control material pipes, and the tail end face of the solid particle storage box is communicated with a waste material pipe opening. According to the utility model, a large number of tiny bubbles can be generated through the bubble generation rapid reaction structure, and the tiny bubbles can be rapidly attached to the surfaces of suspended solids separated by high-temperature evaporation demulsification, so that the suspended solids separated from emulsion wastewater rapidly float on the surfaces; therefore, small suspended solids can float on the surface, and the demulsification effect can be improved.

The invention relates to the technical field of water quality detection, and discloses a method and system for detecting the concentration of suspended solids in a canal water sample, and the method comprises the following steps: obtaining environmental parameters of a canal water body in real time, and synchronously collecting a light scattering intensity signal and an acoustic echo attenuation signal of the canal water body through a near-infrared optical sensor and an acoustic Doppler flow velocity profiler; calculating an initial suspended matter concentration value based on the light scattering intensity signal and the acoustic echo attenuation signal; correcting the initial suspended matter concentration value through a dynamic compensation algorithm according to the environmental parameters of the canal water body, and generating concentration data before calibration; inputting the concentration data before calibration into a pre-trained machine learning model, and outputting a final suspended matter concentration value; wherein the pre-trained machine learning model comprises a random forest regression model and a gradient boosting decision tree model. According to the scheme, the detection accuracy under the complex hydrological condition and the real-time response capability of the model under the disturbance scene can be improved.

The invention relates to the technical field of water treatment, in particular to a leachate treatment system and method.The system comprises an oxidation module, a hardness removal module, a first adsorption module, a second adsorption module and a monitoring module, and the oxidation module is used for degrading macromolecular organic matter and comprises a Fenton reactor, an ozone generator and an electrocatalytic oxidation device; the hardness removal module is used for removing heavy metals, fluorosilicone and suspended matters, and comprises a dual-alkali reaction tank and a tubular ultrafiltration membrane; the first adsorption module is used for adsorbing organic matters in the leachate through activated carbon; the second adsorption module comprises a first resin exchange tower for selectively adsorbing residual hardness and heavy metal and a second resin exchange tower for adsorbing fluoride and silicate; the monitoring module comprises a group of flow velocity sensors and a group of voiceprint collectors which are respectively arranged on a pipeline in the liquid inlet direction of the tubular ultrafiltration membrane and a pipeline in the liquid outlet direction of the first adsorption module; and the processing quality is effectively improved by comparing the voiceprint with the monitoring processing process under the characteristic flow rate.

The invention provides a preparation method of aquatic organism bottom modification particles, which comprises the following steps: adding bacillus subtilis liquid, an oxygen producer and an adhesive into a base material, stirring and granulating to obtain oxygen release core particles; stirring the oxygen release core particles in a roller coating machine, and intermittently spraying a chelating agent in the stirring process to obtain transition particles; and spraying the heavy metal adsorption sol on the transition particles, spraying the bonding solution after cross-linking and curing, then roll-coating the counterweight particles, and drying to obtain the aquatic organism bottom-changing particles. Reducing harmful gas and nitrogen and oxygen indexes are reduced, heavy metals and fine suspended solids are captured synchronously, and the oxidation-reduction buffer capacity of the bottom mud and the stability of a water body are recovered.

The invention relates to the technical field of industrial wastewater treatment and resource recovery, discloses a printing and dyeing wastewater desizing water alkali recovery method, and solves the problem of low recovery treatment efficiency caused by serious membrane pollution when printing and dyeing desizing wastewater is treated by an existing membrane separation technology. The method comprises the following steps: carrying out homogenization and dissolved air flotation pretreatment on high-temperature desizing water to remove most of grease and suspended solids; then, clear liquid is filtered through an ultrafiltration membrane, a negative pressure environment is constructed on the membrane shell side to extract penetrating fluid in real time, meanwhile, fine bubbles are injected into feeding liquid to form gas-liquid two-phase flow, and the net pushing force of the membrane surface is controlled to be maintained in a 0.02-0.04 MPa micro-positive pressure interval so as to reduce membrane pollution; and carrying out nanofiltration purification on the primarily filtered water to finally obtain high-purity recovered alkali liquor. According to the invention, the problems of serious membrane pollution and fast flux attenuation in the traditional membrane treatment process are effectively solved, and efficient recovery of alkali and long-term stable operation of the system are realized.

The invention discloses a circulating water blow-off water reuse treatment system, and relates to the field of circulating cooling water treatment, the system comprises: an induced crystallization unit, which is used for carrying out primary treatment on circulating water blow-off water through an induced crystallization fluidized bed reactor to remove hardness ions in water; the ceramic membrane filtering unit is used for carrying out secondary treatment on the primarily treated water by utilizing a ceramic membrane device and removing residual hardness ions, organic matters and suspended matters in the water; and the nanofiltration membrane unit is used for performing tertiary treatment on the water by utilizing a nanofiltration membrane according to the secondary treatment result to remove salt and organic matters in the water. According to the method, induced crystallization, ceramic membrane and nanofiltration membrane technologies are combined to cooperatively treat the circulating water and the blow-down water, so that the operation mode of simplifying the process, reducing the energy consumption and prolonging the backwashing period is realized, the dosage of chemicals and the generation of sludge are reduced, and the water recovery rate is also improved, so that the hardness is removed, and the calcium resource recovery is realized.

The invention relates to an anti-blocking swimming pool suspended matter intercepting device, and belongs to the technical field of swimming pool cleaning equipment. The anti-blocking swimming pool suspended matter intercepting device comprises a water suction pump, a water conveying pipe, a water outlet pipe, a blow-off pipe, a flushing pipe and a connecting hoop. The filtering cylinder mechanism comprises a plastic cylinder body and a prefilter arranged at the top end of the plastic cylinder body; according to the filtering cylinder mechanism, the two sets of wavy filtering assemblies are used for adsorbing suspended solids in swimming pool water, the wavy shape can effectively increase the path length of an aqueous solution, the interception effect of particulate matter is improved, meanwhile, the water flow velocity gradient can be reduced, impact of turbulent flow on a filtering material is reduced, and the stability of the filtering material during filtering is improved; water entering the connecting hopper impacts the spiral blade to rotate, so that the filter drum is synchronously driven to rotate, large suspended solids stay on the surface of the filter drum, and the suspended solids are graded together with the fixed scraping strip, scraping frame, cutting scraping plate and filter plate scraping plate.