2403 results about "Suspended matter" 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 relates to the technical field of sewage treatment, in particular to a dynamic simulation method for a lake and reservoir sewage sludge deposition process. The method comprises the following steps: collecting lake and reservoir hydrological station data, carrying out abnormal value filtering and missing value completion, generating a complete hydrological sequence, carrying out water flow state subdivision to obtain flow state hierarchical data, reconstructing a multi-layer hydrodynamic field, forming a hydrological dynamic field set, carrying out suspended matter analysis, and obtaining a hydrological dynamic field model; the method comprises the following steps of: extracting sewage sludge data, deconstructing transportation characteristics of the sewage sludge data, generating transportation dynamic data, performing water body stress tensor decomposition to obtain stress distribution data, performing substance transportation simulation on a complete hydrological sequence by using the stress distribution data, establishing a multi-scale sedimentation dynamic model, acquiring water body sedimentation change data in real time, comparing the water body sedimentation change data with the model, and if inconsistency exists, judging whether the water body sedimentation change data is consistent or not. If yes, the model is finely adjusted in real time, and an optimized multi-scale deposition dynamic model is generated. The more accurate dynamic simulation method for the lake and reservoir sewage and sludge deposition process is achieved.

The invention provides a zero-discharge treatment process for recycling production wastewater, and relates to the technical field of water treatment and recycling, and the zero-discharge treatment process comprises the following steps: S1, oxidizing and degrading COD through ozone and a Fenton reagent, and generating a flocculatable intermediate; s2, intercepting suspended matters by using a gradient aperture filter bed in a grading manner, and monitoring a dynamic membrane resistance coefficient delta Rm in real time to automatically trigger backwashing; s3, coupling an ultrafiltration reverse osmosis membrane to realize that the organic matter rejection rate eta is greater than or equal to 98%, and synchronously regulating and controlling flux and operation pressure by an online spectrometry; s4, regulating and controlling the current density by adopting a rotational flow electric flocculation reactor for directional crystallization to produce industrial salt with Cl <-> less than or equal to 50mg / L; and S5, based on the total dissolved solid recovery rate TR and the comprehensive energy consumption, establishing a multi-target optimization model for real-time parameter adjustment. According to the method, a membrane pollution early warning and backwashing dynamic response mechanism is constructed through cross-scale cooperative regulation and control of delta Rm and the retention rate eta, and a catalytic oxidation effect strengthening and electric crystallization parameter self-tuning technology is combined, so that the problem of cooperative optimization of high-salinity wastewater salt gradient separation and pollutant deep removal is solved.

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 belongs to the technical field of wastewater denitrification treatment, and particularly relates to an anaerobic ammonia oxidation reaction-based integrated partitioned denitrification method which comprises the following steps: S1, removing high-concentration organic matters and suspended matters in wastewater through coagulating sedimentation or chemical oxidation pretreatment to avoid inhibition on subsequent Anammox; s2, partitioning the integrated reactor, and setting a short-cut nitrification region and an Anammox reaction region; s3, enabling the effluent part of the Anammox reaction zone to flow back to the short-cut nitrification zone, supplementing nitrite and balancing the carbon nitrogen ratio; the Anammox granular sludge flows back to the reaction zone through the settling zone, and the biomass concentration and the reaction efficiency are maintained; s4, a secondary sedimentation tank or a built-in sedimentation zone is arranged to achieve mud-water separation, residual sludge is discharged, and it is guaranteed that effluent reaches the standard, and it is guaranteed that the denitrification efficiency is stable by dynamically adjusting dissolved oxygen of the short-cut nitrification zone and the pH value of the Anammox reaction zone.

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 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 utility model discloses a white spirit upgrading ultrafiltration device, and particularly relates to the technical field of white spirit production equipment, the white spirit upgrading ultrafiltration device comprises a filter bin, the middle part of the filter bin extends to the lower end and is symmetrically provided with residue discharge grooves, the output ends of the residue discharge grooves are connected with sealing blocks in a sliding manner, and a motor is fixedly connected below the inner cavity of the filter bin; a transmission structure is fixedly connected to the outer surface of the output end of the motor, a knocking structure is fixedly connected to the right side of the upper portion of the transmission structure, a sweeping structure is fixedly connected to the upper portion of an inner cavity of the filtering bin, and an ultrafiltration membrane is rotationally connected to the middle of the inner cavity of the filtering bin. According to the Baijiu upgrading ultrafiltration device disclosed by the utility model, the ultrafiltration membrane is matched with the sweeping structure and the residue discharge groove, so that impurities and suspended matters filtered by the ultrafiltration membrane can be swept and fed into the residue discharge groove in time, the Baijiu filtering quality is improved, the sweeping structure does not influence the Baijiu filtering in the filtering process, and the filtering speed is also improved; and due to automatic cleaning, the manual labor is reduced.

A multi-source remote sensing data-based method for monitoring the concentration of suspended matter in an ocean dumping area, belonging to the technical field of remote sensing and monitoring of the concentration of suspended matter in ocean dredging and dumping areas. The method comprises: 1) selecting a certain sea area comprising a dumping area as a research area to acquire actually measured suspended matter concentration data; 2) separately acquiring the actually measured suspended matter data, and preprocessing remote sensing images; 3) matching the acquired data to form a data set, constructing a suspended matter concentration inversion model, and obtaining an image of the spatiotemporal distribution of the concentration of suspended matter in a body of water of the research area; and 4) constructing a multi-source remote sensing spatiotemporal data fusion model to obtain a high-spatiotemporal-resolution diagram of the spatiotemporal distribution of the concentration of suspended matter in the dumping area, and monitoring the conditions of a change in the concentration of suspended matter in the ocean dumping area. The present invention has advantages such as a short monitoring period, high spatiotemporal resolution, and a wide observation range, and can synchronously monitor a sea area having a large range. The present invention can also provide data support for operations such as supervision and management of ocean waste dumping, monitoring and management of an ocean waste dumping area, selection and division of a waste dumping area, supervision of use, and monitoring for illegal dumping.

The invention provides a method and system for salt separation, evaporation and crystallization of printing and dyeing wastewater, and the method comprises the following steps: sequentially carrying out multi-stage synergistic pretreatment on textile printing and dyeing wastewater to remove suspended solids, degrade organic matters and reduce hardness; the pretreated wastewater is subjected to membrane salt separation treatment, and preliminary separation of salt is achieved through reverse osmosis pre-concentration and nanofiltration salt separation; and respectively carrying out evaporative crystallization treatment on the separated high-concentration salt solution to obtain high-purity sodium sulfate and sodium chloride products. According to the method, the salt recovery rate and the product purity are remarkably improved, the energy consumption and the operation cost are reduced, meanwhile, the problems that in traditional printing and dyeing wastewater treatment, salt is difficult to separate, and the crystallization purity is low are solved, and an innovative solution is provided for high-valued resource recovery of industrial wastewater.

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 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 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 relates to a method for treating wastewater containing suspended solids and metal ions, which comprises the following steps: introducing CO2-containing gas into the wastewater containing suspended solids and metal ions to carry out air flotation treatment, and adding a chemical agent Y1 which is an amino or amidino porous polymer at the same time; separating solids after treatment to obtain water, adding an agent Y2 for stirring treatment, and separating solids after reaction; the agent Y2 is a polysilicic acid-based inorganic-organic hybrid flocculating agent. According to the invention, suspended solids and metal ions in wastewater can be efficiently removed, secondary pollution of water is avoided, and the treatment process is simple, convenient and efficient.

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 present invention provides a device for melting and removing impurities from raw materials for aluminum rod production, which belongs to the technical field of aluminum rod production technology. The device comprises a box body with an upper opening, a connecting frame fixedly provided inside the box body, a stirring shaft rotatably connected to the bottom of the connecting frame, and stirring plates arranged in an array along the axial direction on the stirring shaft, which are used to stir the aluminum liquid inside the box body; the aluminum liquid is placed inside the box body, a driving mechanism drives the stirring plates to rotate, and the stirring plates stir the aluminum liquid, so that impurities in the aluminum liquid can float on the surface of the aluminum liquid to form suspended matter, a filter chamber fully filters the aluminum liquid, and a scraper can also remove suspended matter on the surface of the aluminum liquid, thereby improving the purity of the aluminum liquid extraction and also accelerating the extraction efficiency of the aluminum liquid.

The present invention relates to the technical field of wastewater treatment, and specifically, to a wastewater treatment device and method, comprising the following steps: step 1: injecting wastewater into a flocculation scum treatment tank through a wastewater inlet; step 2: injecting an appropriate amount of composite aluminum salts and polyacrylic agents into the flocculation scum treatment tank through a metering pump to perform coagulation assistance and flocculation enhancement treatment; and starting an air pump to inject air into the flocculation scum treatment tank through an aeration pipe, forming tiny bubbles, whereby due to the flocculation effect of the flocculant, originally fine matters in the wastewater agglomerate into larger particles, forming suspended matters, and these suspended particles adhere on the bubbles and rise up to the water surface for the convenience of being processed by a foam pushing plate.

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 present invention provides a multi-depth sampling device for water body detection, belonging to the technical field of water body detection, including a sampling frame. A plurality of sampling seats slide inside the sampling frame, and an annular cavity is arranged inside the sampling seats. An opening and closing mechanism is arranged inside each sampling seat; when positioning the depth required for sampling, multiple groups of limiting plates can be pushed to retract into the respective sampling seats, and by pulling the multiple sampling seats to move to their required sampling depths respectively, the multiple sampling seats can be positioned respectively with the cooperation of the limiting components, which plays a role in positioning the sampling depth, effectively reduces the sampling limitation, can adapt to the requirements of different sampling points, reduces the time and labor costs during the sampling process, and at the same time can avoid being interfered by suspended substances, algae, etc. in the upper water layer during the sampling process, ensuring that the collected water sample can truly reflect the water quality status of the target water layer.

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 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.