1831 results about "Suspended solids" 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 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 a precise sewage aeration method, and relates to the field of water, wastewater, sewage or sludge treatment, the method comprises a feed-forward model and a feedback model, the feed-forward model collects historical data of aeration tank operation parameters, environmental parameters and oxygen demand, and a decision tree is iteratively generated to correct errors and determine a target dissolved oxygen value; the feedback model corrects the target dissolved oxygen value according to the aeration tank dissolved oxygen concentration and the mixed liquid suspended solid concentration; and controlling the power of the aeration equipment according to the target dissolved oxygen value. Through common coordination of the feedforward model and the feedback model, accurate aeration of sewage treatment is realized.

The invention relates to the technical field of image processing, and discloses a sewage surface alumen ustum identification method and system. The sewage surface alumen ustum recognition method comprises the steps that regulation and control parameters and original water quality parameters in the alumen ustum forming process are obtained; extracting alumen ustum characteristics of the coagulative precipitation process video, and identifying the optimized key frame as a to-be-identified image based on a genetic algorithm; training a CNN neural network model by taking the regulation and control parameters, the original water quality parameters and the key frame image data as inputs and taking the alumen ustum quality as an output to obtain an alumen ustum quality identification model; the suspended solid content is obtained through a suspended solid sensor, and the alum peanut forming stage is determined; judging whether the alumen ustum quality recognition result is qualified or not based on the alumen ustum quality recognition model in the transition stage; and when the judgment result is no, adjusting the parameters according to the alumen ustum quality identification result. The accuracy of various parameters in the coagulating sedimentation process is judged and optimized according to the quality of alumen ustum, and the sewage treatment efficiency is improved.

The invention discloses a rice-fish symbiosis multifunctional water quality monitoring and analyzing device and a use method. The device comprises the following core modules: a data acquisition module, which is responsible for acquiring water quality data from front-end monitoring equipment in real time; the data processing module is used for deeply processing the collected water quality data and image information; the data analysis module is used for introducing a prediction model based on machine learning and accurately predicting a future water quality change trend in combination with historical water quality data and real-time monitoring data; the intelligent decision support module is responsible for automatically identifying potential risks in water quality and generating targeted intelligent decision suggestions according to the potential risks; according to the method, image recognition and spectral analysis technologies are introduced, a high-definition camera, a precise underwater spectrometer and other equipment are utilized, and a deep learning algorithm and a spectral database are combined, so that precise recognition and classification of suspended solids, algae and other biocenosis in water are realized, and more comprehensive and multi-dimensional information is provided for water quality evaluation.

The invention relates to the technical field of concentration calculation, in particular to a water suspended matter concentration calculation method based on multi-wavelength detection, which comprises the following steps of: adopting a multi-spectral measurement method, utilizing light beams with different wavelengths to penetrate through a water body, and identifying particle size distribution and morphological characteristics of suspended matter particles; separating and correcting the turbidity contribution of the particles with different particle sizes through a least square fitting algorithm; decomposing the measured optical signal into a basic scattering component, a particle size dependent component and a background signal component by adopting a multi-level signal decoupling algorithm; and in combination with data after particle characteristic correction and optical signal decoupling, constructing a suspended matter concentration calculation model based on particle dynamics, calculating the water suspended matter concentration by using the dynamic model, and outputting suspended matter concentration data. According to the method, dynamic modeling is carried out on the concentration of the suspended matter, a dynamic equilibrium equation is solved through numerical values, and the concentration change of the suspended matter in time and depth is accurately described.

The invention provides a regional ecological environment quality evaluation method and system based on remote sensing data, and relates to the technical field of environment remote sensing and ecological monitoring, and the method comprises the steps: extracting red light and near-infrared reflectivity at the peak of a growing season by using Landsat8 satellite data, and calculating a mixed vegetation index; synchronously measuring vegetation indexes of pure vegetation and bare soil on site to obtain a vegetation coverage rate, and obtaining water transparency, suspended solid concentration and chlorophyll a concentration through on-site measurement on the basis of green light, red light, blue light and near-infrared reflectivity in a heavy rainfall period and a dry season; the method comprises the following steps: constructing a linear regression model of reflectivity and water quality parameters through a least square method, calculating a water quality index, constructing an extreme weather influence factor based on ten-year extreme weather data, and finally fusing a vegetation coverage rate, water quality, the extreme weather influence factor, annual precipitation, annual average temperature, optimal regional vegetation temperature and historical rainfall extremum. And constructing an ecological quality index, and dividing ecological environment quality grades.

The invention relates to the technical field of sewage treatment, and discloses an integrated sewage treatment method based on intelligent sensing. According to the method, sewage flow, PH value, temperature, turbidity and suspended matter concentration are collected in real time through an intelligent sensor, in each treatment link, the intelligent sensor can monitor the concentration of organic matter, nitrogen, phosphorus and other pollutants, the pollutant removal rate and the biological reaction rate are calculated, timely adjustment of a sewage treatment strategy is achieved, and the sewage treatment efficiency is improved. Through real-time monitoring of dissolved oxygen, temperature and mixed liquid reflux ratio in the bioreactor, reaction conditions are optimized, biodegradation efficiency and sludge yield are improved, and through monitoring of the dosage and reaction time in the reaction process, the dosage adding proportion is optimized, so that the removal effect of chemical reaction is improved; finally, the flow, the PH value, the chemical oxygen demand and the biological oxygen demand of the treated effluent are comprehensively monitored, so that the sewage treatment efficiency and reliability are remarkably improved.

The invention discloses a pulping and papermaking industry sewage treatment process, relates to the technical field of sewage treatment, and adopts a dynamic adjustment algorithm and a PID control mechanism to monitor the concentration, flow and water temperature of suspended solids in real time, the dosage of chemicals can be automatically adjusted, the concentration is stabilized to be close to a target value, the waste of chemical chemicals is reduced, and the sewage treatment efficiency is improved. Meanwhile, the stability and effect of sewage treatment are improved, a reinforcement learning RL algorithm is introduced, the aeration intensity and time are adjusted in real time, the ammonia nitrogen concentration is controlled, the organic load is removed, the RL algorithm can continuously optimize the aeration strategy according to the change of the ammonia nitrogen concentration and the organic load, and therefore the removal efficiency is improved to the maximum extent; meanwhile, excessive aeration and unnecessary energy consumption are avoided, predictive control based on a random forest algorithm is adopted, the physical characteristics, including the moisture content, the solid content and the rheological property, of the sludge are analyzed in real time, and the concentration stirring strength and the concentration time are dynamically adjusted.

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.

Methods and systems for water quality assessment are disclosed. The method includes obtaining a first input data indicative of properties of a first liquid sample, the first input data including turbidity data and total suspended solids data for the first liquid sample, where the first liquid sample is acquired from a liquid source. The method further includes determining, using a computer processor and a machine learning model, a first predicted particle-size distribution of the first liquid sample based on the first input data, where particle-size distribution is controlled, at least in part, by a set of dosage parameters configurable by a water quality system. The method further includes determining, with an optimizer applied to the machine learning model, an optimal set of dosage parameters based on the first predicted particle-size distribution and adjusting the set of dosage parameters of the water quality system to the optimal set of dosage parameters.

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 relates to the technical field of industrial wastewater sampling and discloses an industrial wastewater sampling system.The industrial wastewater sampling system comprises a frame, a connecting frame, a hydraulic cylinder and a rectangular plate, the connecting frame is located in the frame and slidably arranged in parallel, and the bottom of the hydraulic cylinder and the right side of the interior of the connecting frame are fixedly mounted; the upper surface of the rectangular plate and one end of an output shaft of a hydraulic cylinder are fixedly mounted, and a trigger sampling mechanism is arranged in the rectangular plate. According to the industrial wastewater sampling system, when a trigger rod is in contact with the bottom of a canal, a connecting spring and a telescopic rod in a power rebound mechanism are compressed, a third rack is driven to move upwards, a valve switch control mechanism is linked, a first butterfly valve and a second butterfly valve are synchronously closed, and a sampling barrel is sealed; it is ensured that the water sample is captured at the moment when the sampler is stabilized at the target depth and bottom mud is not stirred, and therefore index distortion of suspended solids and adsorptive heavy metal is effectively avoided, and the authenticity of the sample and the accuracy of detection data are improved.

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 device and method for treating molybdenum concentrate hydrometallurgy wastewater, and relates to the technical field of wastewater treatment.The device comprises a top box and a rack fixedly connected to the outer surface of the top box; the airflow generating mechanism is used for generating airflow in the inner cavity of the top box, by arranging the airflow generating mechanism, gas flow can be generated in the inner cavity of the top box and the inner cavity of the bottom box when molybdenum concentrate hydrometallurgy waste water is recycled, and particle precipitates after precipitation can be discharged out of the device in a precipitation mode; meanwhile, in the air flotation mode, bubbles are poured into the inner cavity of the device, so that suspended solids in the sewage float to the top of the inner cavity through the bubbles, and then the suspended solids are discharged; and the switching mechanism is used for switching two treatment modes of sewage precipitation and air floatation, so that the effect of recycling particulate matters and suspended matters in the metallurgical wastewater is achieved.

The invention provides dye sewage treatment equipment for textile production, and relates to the technical field of sewage treatment equipment.The dye sewage treatment equipment comprises a sewage treatment pond which is provided with a sewage adjusting pond and a sewage coagulative precipitation pond; a separation mechanism for removing physical impurities such as large-particle suspended solids and fibers in textile sewage is arranged at the side end of the sewage treatment tank, a filter cartridge is fixedly mounted at the right side end of the sewage treatment tank, a water inlet for feeding wastewater is formed in the filter cartridge, and the sewage regulating tank is used for balancing the quality and quantity of the textile sewage. By arranging the rotatable filter screen cylinder and the sealing side plate and sealing gasket structure thereof, large-particle suspended solids such as fibers and batting and impurities in textile sewage can be efficiently removed. And the forward rotation design of the filter screen cylinder can guide impurities to the bottom of the filter cylinder to prevent the impurities from being accumulated to block the filter surface, thereby obviously improving the filter efficiency and prolonging the service life of the equipment.

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 utility model provides a mercury-containing organic wastewater treatment device in a Tibetan medicine processing process. The mercury-containing organic wastewater treatment device comprises a raw water tank, a micro-filtration membrane treatment unit, an electro-catalysis pretreatment unit, a mercury capturing and separating unit and a high-precision filtering unit which are sequentially connected, and the electro-catalysis pretreatment unit is further connected with a comprehensive waste gas purification unit; the mercury capture and separation unit comprises a chalcogenide reaction tank, a PAM reaction tank and a clarification tank which are communicated in sequence; the chalcogenide reaction tank is connected with a chalcogenide dosing device; and the PAM reaction tank is connected with a PAM dosing device. According to the utility model, the processes of filtration, electro-catalysis pretreatment, heavy metal capture, targeted adsorption and solid-liquid separation are adopted to treat a large amount of high-mercury, high-chromaticity, high-suspended-matter and high-COD wastewater generated in the Tibetan medicine zogtai processing process, so that the organic matter content of a water sample can be greatly reduced, the chromaticity of water is reduced, the suspended matter in water is removed, and the mercury concentration in water is reduced.

The invention belongs to the technical field of resource recycling, and particularly relates to a waste concrete adsorbent and a preparation method thereof, and a wastewater treatment system and device. The preparation method of the waste concrete adsorbent comprises the following steps: obtaining waste concrete, crushing and cleaning the waste concrete, and crushing the waste concrete to obtain concrete powder; performing acid impurity removal and activation treatment on the concrete powder to obtain activated concrete powder; and calcining the activated concrete powder, and crushing to obtain the waste concrete adsorbent. After the waste concrete is prepared into the waste concrete adsorbent by the preparation method disclosed by the embodiment of the invention, a larger surface area and more pore structures are exposed, so that the waste concrete adsorbent has higher physical adsorption capacity, and substances such as suspended solids, oil stains, organic pollutants and heavy metal ions in wastewater can be adsorbed and removed. Moreover, the waste is recycled, and the waste concrete powder is used for wastewater treatment, so that the stacking of the waste and the environmental burden can be reduced.

The invention relates to a treatment method and device for resource utilization of desulfurization wastewater in the technical field of desulfurization wastewater treatment, and the device comprises a pretreatment module, a magnesium removal module, a calcium removal module, a nanofiltration salt separation module, a concentration reduction module and a flue evaporation module, the method comprises the steps of pretreatment, magnesium removal treatment, calcium removal treatment, nanofiltration salt separation treatment, evaporative crystallization treatment and the like, heavy metals and suspended solids in the desulfurization wastewater are removed in the pretreatment module, a high-purity magnesium hydroxide product is extracted through the magnesium removal module, after calcium ions are removed in the calcium removal module, salt separation treatment is conducted through the nanofiltration salt separation module, and the high-purity magnesium hydroxide product is obtained. One part of the separated monovalent saline water is recycled, the other part of the separated monovalent saline water is concentrated and reduced by the concentration and reduction module and then enters the flue evaporation module to be evaporated, and the separated divalent saline water is recycled to a desulfurization system. The method has the advantages of simplicity and convenience in operation, economical operation, environment-friendly process and the like, high-purity magnesium hydroxide can be recycled, complete zero emission of the desulfurization high-chlorine wastewater is realized, and the method has a relatively high commercial application value.

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 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 utility model relates to the field of water treatment, in particular to a water treatment air floatation device, which comprises a main air floatation tank, a main body for carrying wastewater to perform water-air floatation treatment, a pretreatment box and a fixed bolt arranged on one side of the main air floatation tank and used for performing pre-filtration treatment on the wastewater, one end of the fixing bolt is movably connected with a filter screen, and a water inlet pipeline is arranged above the filter screen. The water treatment air flotation device is provided with the pretreatment box, the water inlet pipeline, the air flotation chamber, the air flotation pipeline, the jet aerator, the movable rod and the stirring blade, when the water treatment air flotation device is used, wastewater enters the pretreatment box through the water inlet pipeline before entering the water treatment air flotation device, and the water treatment air flotation device is convenient to clean and clean due to the fact that the filter screen is arranged in the pretreatment box. Large-particle impurities and suspended solids in wastewater can be isolated and filtered for primary treatment, so that the treatment burden of the water treatment air floatation device can be reduced, and the treatment effect can be improved.

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 invention discloses an efficient, environment-friendly and energy-saving aquaculture tail water treatment system, and belongs to the technical field of aquaculture. Comprising an indoor small circulation system and an outdoor large circulation system, adopts dual-mode cooperative operation of'indoor small circulation and outdoor large circulation ', combines physical, biological and ecological treatment technologies, realizes efficient purification of water quality and cyclic utilization of resources, is ecological and environment-friendly, and is high in reliability; oxidation, suspended solids, total nitrogen, total phosphorus and other organic matters and compounds in the aquaculture tail water can be effectively removed, the pH value is effectively adjusted, the tail water treated by the system can be recycled and can reach the standard to be discharged, the water source and the production cost are effectively saved, surrounding farmers effectively utilize the water body, the annual income is increased, and the method has remarkable ecological, social and economic benefits and is worthy of popularization and application. And the method meets the requirements of advancement, applicability and safety, and has a relatively large demonstration application scale.

The invention discloses a lead-acid battery wastewater treatment method. The method comprises the following steps: (1) collecting wastewater; (2) conveying the wastewater into a primary adsorption tank for adsorption treatment to obtain filtrate subjected to primary adsorption treatment; (3) adding the filtrate subjected to primary adsorption treatment into a reaction tank for reaction and flocculation to obtain a mud-water mixture; (4) settling the sludge-water mixed material, and collecting supernatant and lower sludge; (5) carrying out decrement adjustment on the lower-layer sludge, and then carrying out further dehydration decrement to obtain filter-press filtrate and dewatered sludge; (6) mixing the supernatant and the filter-press filtrate, conveying the mixture into a secondary adsorption tank, and carrying out adsorption treatment to obtain a filtrate subjected to secondary adsorption treatment; (7) detecting the filtrate subjected to secondary adsorption treatment, collecting the filtrate into a clean water tank after the filtrate is detected to reach the standard, and refluxing the filtrate into the primary adsorption tank or the secondary adsorption tank to be treated again until the filtrate reaches the standard if the filtrate does not reach the standard; the lead-acid battery wastewater treatment method disclosed by the invention is simple to operate, can effectively treat lead ions and suspended solids in the wastewater, and has a wide application prospect.

A power plant desulfurization wastewater treatment method belongs to the technical field of water treatment. The method comprises the following steps: S1, pretreatment of the desulfurization wastewater: adding a coagulant and a polymer coagulant aid to remove suspended solid particles in the desulfurization wastewater to obtain pretreated effluent; s2, collecting sludge generated by pretreatment; s3, feeding the desulfurization wastewater into an ozone catalytic reactor, and catalyzing ozone oxidation by using a heterogeneous solid catalyst to remove ammonia in the desulfurization wastewater; s4, adding calcium sulfate seed crystal and desulfurization wastewater, uniformly mixing in a seed crystal mixer, and feeding into a triple-effect circulating evaporation concentrator; s5, allowing the concentrated solution desulfurization wastewater to enter a crystal collection tank for precipitation, discharging and recycling large-particle crystals, allowing supernate in the collection tank to flow back to the crystal seed mixer for supplementing crystal seeds, and feeding effluent of the collection tank into a rotary spray dryer for treatment; and S6, carrying out rotary spray drying on the concentrated solution desulfurization wastewater to realize zero discharge of the wastewater. The method is used for treating the desulfurization wastewater of the power plant.

The invention relates to the technical field of waste liquid treatment, in particular to an automatic fluorine-containing liquid advanced treatment device and method.The automatic fluorine-containing liquid advanced treatment device comprises a waste water collection pool, a three-stage sedimentation pool, a flocculant stirring pool, a clarification pool, a mixed reaction pool and a filter press; the wastewater collection tank, the three-stage sedimentation tank, the flocculant stirring tank, the clarification tank, the mixed reaction tank and the filter press are sequentially arranged from left to right, and the wastewater collection tank, the three-stage sedimentation tank, the flocculant stirring tank, the clarification tank, the mixed reaction tank and the filter press are matched for use; therefore, suspended solids and colloidal particles in the fluorine-containing wastewater can be removed by adopting a mode of combining gravity settling and flocculant putting, and after the suspended solids and colloidal particles in the fluorine-containing wastewater are removed, fluorine ions in the fluorine-containing wastewater are converted into insoluble fluorides to be precipitated by putting the fluorine removal liquid, and finally the insoluble fluorides are removed. Therefore, the removal rate of fluorine ions in the fluorine-containing wastewater can be increased, and the treatment effect of the fluorine-containing wastewater is improved.