2327 results about "Saline water" patented technology

The invention provides a solar interface evaporator based on amphoteric polyelectrolyte photo-thermal hydrogel, a preparation method and application, and belongs to the field of solar interface evaporation. The solar interface evaporator with a three-dimensional multi-surface evaporation structure is prepared by combining the polyelectrolyte resisting effect of the amphoteric polyelectrolyte photo-thermal hydrogel and the porous capillary effect of the sponge, and has the characteristics of high light absorptivity, good water absorption effect, excellent antibacterial property, mechanical property, salt resistance, evaporation property and the like; particularly, compared with a traditional hydrogel-based solar interface evaporator, the water delivery capacity and the salt resistance in high-concentration saline water are greatly improved through the application of the autonomously designed zwitterionic hydrogel, water molecules in the saline water are activated through the cooperation of salt-resistant ionized water, the evaporation enthalpy is reduced, and the evaporation efficiency is improved. And a great positive effect is achieved on improvement of the evaporation rate. The evaporator is easy to prepare and excellent in multi-dimensional performance, and a new way and thought are provided for application to seawater desalination and wastewater treatment.

The invention relates to a saline intrusion measurement method, system and equipment based on dynamic ship motion conditions and a medium, and aims to solve the technical problem that the salinity inversion precision is reduced due to spatial-temporal dislocation between particle image velocity measurement flow field data and plane laser-induced fluorescence concentration field data caused by ship six-degree-of-freedom motion. According to the method, future poses are predicted by collecting ship motion parameters and environment disturbance parameters, and space-time compensation parameters are generated in combination with a static calibration matrix; performing three-dimensional coordinate transformation and time synchronization on synchronously acquired original flow field and concentration field data by applying compensation parameters, and eliminating space-time deviation caused by ship movement; a three-dimensional salinity distribution field is calculated based on registration data fusion flow field diffusion characteristics and concentration field distribution; and meanwhile, the pose of the measuring equipment is dynamically adjusted through the closed-loop controller so as to optimize the data acquisition quality. According to the method, ship motion interference is effectively inhibited, and accurate characterization of saline invasion frontal surface spatial characteristics is guaranteed.

The invention belongs to the field of brine evaporators, and relates to a conical solar interface evaporator with high salt deposition resistance. The evaporator comprises a hydrophobic heat insulation layer, a hydrophobic fixing layer, a water absorption layer and a hydrophobic porous evaporation layer. The hydrophobic porous evaporation layer is arranged on the hydrophobic heat insulation layer, the hydrophobic fixing layer is arranged on the hydrophobic heat insulation layer, and the hydrophilic layer is provided with a plurality of water absorption belts and is arranged between the hydrophobic porous evaporation layer and the hydrophobic fixing layer. The evaporator is simple in preparation method, solves the problem of salt deposition of a traditional evaporator in evaporation of high-concentration saline water, improves the evaporation efficiency, and can be widely applied to seawater desalination treatment as an evaporator.

The invention provides an iron and steel enterprise high-salt wastewater and high-salt solid waste collaborative resource utilization system which is characterized in that firstly, non-magnetic fly ash in sintering machine head fly ash is screened out through a pretreatment module; carrying out multi-stage washing and filter pressing treatment on slurry obtained by mixing the non-magnetic dedusting ash, the blast furnace gas condensate water and the strong brine of the desalting water station through a multi-stage washing and filter pressing module to obtain multi-stage washing ash and multi-stage ash washing brine; finally, carrying out purification and separation treatment on the multi-stage ash washing brine through a purification and separation module to obtain industrial-grade NaCl, industrial-grade KCl and devitrification mother liquor; according to the method, non-magnetic fly ash, blast furnace gas condensate water and strong brine of a desalting water station are used as raw materials, the problem of enrichment of alkali metal and chloride ions in a sintering machine system is solved through a series of co-processing technologies, and meanwhile industrial-grade NaCl and industrial-grade KCl are extracted from the blast furnace gas condensate water and the strong brine of the desalting water station. Therefore, the resource utilization rate is improved, and benefits are increased for iron and steel enterprises.

The invention discloses a land sedimentary basin deep saline water layer gas storage site selection method, which comprises the following steps of: preliminarily delineating a plurality of first candidate areas through judgment of basic geological conditions and hydrogeological conditions; further delineating a second candidate area through reservoir parameter quantitative evaluation, cover layer integrity evaluation, reservoir fracture connectivity evaluation and injection-production process pressure field change dynamic simulation; performing security assessment on the second candidate region; performing economic evaluation on the second candidate region; constructing an index system based on technical, safety and economic indexes, setting the weight of each index, and performing suitability scoring on each second candidate region; selecting the second candidate area with the suitability score meeting the requirement as a gas storage construction preselection point; and the built gas storage in the area adjacent to the gas storage building pre-selection point or the gas storage building pre-selection point verified to be qualified is selected as the gas storage to be put into use. The method can select a suitable site for large-scale safe natural gas storage, and is rapid and efficient to implement and suitable for popularization.

The invention relates to a device and a method for simulating influence of underground water seepage on an existing tunnel and a freezing wall, the device comprises a test box body, a tunnel model, a seepage system, a data acquisition monitoring system, a saline water circulation cooling system and a saline water circulation heating system, the test box body is formed by splicing three box bodies with different structures; a formed space area is used for laying a test soil body and a broken stone hardcore; the tunnel model is arranged in the hollow area in the test box body; the seepage system is used for providing an underground water source for simulating seepage; the data acquisition monitoring system is used for monitoring and recording the soil pressure and displacement of the soil body around the tunnel model and the temperature change of the soil body near the freezing pipe; the saline water circulating cooling system is used for providing cooling capacity required by soil body freezing; and the saline water circulation heating system is used for providing heat required for pulling out the freezing pipe. The device can be used for simulating the influence of groundwater seepage on soil deformation and soil pressure around the existing tunnel, adjusting the seepage direction of groundwater and restoring more real groundwater seepage movement.

The invention discloses a device for enhancing ion membrane-passing mass transfer based on all-channel flow electrode capacitive deionization, which comprises solution chambers, a cathode flow electrode chamber and an anode flow electrode chamber, the solution chambers comprise a first solution chamber and a second solution chamber, and an anion exchange membrane is arranged between the solution chambers; the two solution chambers are respectively provided with a flow guide plate, and the flow guide plate comprises a high-conductivity saline-water mixed solution channel; the water flow directions of the two solution chambers are opposite; the first solution chamber and the second solution chamber contain a high-conductivity saline mixed solution which is formed by mixing pretreated seawater and a high-conductivity material; the invention further discloses a sea water desalination system, the middle solution chamber is additionally arranged, a high-conductivity material is added into the middle solution chamber, a flow guide channel of the middle solution chamber and mixed solution convection of different solution chambers are designed, and the phenomena of high resistance of an FCDI device system and membrane-liquid interface concentration polarization are solved; the desalting efficiency and the energy consumption performance are enhanced; the operation cost is reduced.

The invention provides a low-carbon circulating technological process for treating high-total-nitrogen wastewater. A main treatment unit and a resource recycling and circulating unit are included; the main treatment unit is characterized in that high-total-nitrogen wastewater sequentially passes through a pH regulating tank, a sulfur autotrophic denitrification tank, a biochemical system, a secondary sedimentation tank, a deep treatment line and ultrafiltration reverse osmosis, produced reclaimed water enters produced water for delivery, and a part of produced concentrated water enters a resource recovery and circulation unit; the resource recovery and circulation unit is characterized in that after concentrated water is treated by a vertical electrophoresis device, mixed acid, mixed alkali and low-salt water are separated out, the mixed alkali is sent to a sulfur autotrophic denitrification tank to be used for supplementing alkalinity consumption of the sulfur autotrophic denitrification system, and the mixed acid sequentially passes through an anaerobic regulating tank, an anaerobic reactor, an alkali washing tower, a biological desulfurization reactor and a sedimentation tank; the recovered sulfur can be sold as elemental sulfur or reused in the sulfur autotrophic denitrification tank, and supernate flows back to the alkaline tower; a green, low-carbon and recyclable water treatment process flow is realized.

A zero liquid brine desalination and crystallization system includes a humidification dehumidification (HDH) desalination system and includes a crystallization system. The HDH system includes a humidifier configured to humidify a carrier gas using saline water, and a dehumidifier configured to dehumidify the carrier gas to obtain desalinated water. The crystallization system is configured to receive the saline water from the HDH desalination system and includes an evaporation chamber configured to produce salt crystals and water vapor from the saline water, and a condenser configured to condense the water vapor. Herein, the HDH desalination system and the crystallization system are connected at the condenser for heat exchange between the water vapor and at least one selected from the group consisting of the saline water and the carrier gas.

The invention provides a softening treatment device for water for drinks, which relates to the technical field of softening of water for drinks and comprises a water storage tank, a saline water tank, a softening tank filled with resin, a first communicating pipe and a second communicating pipe, a water conveying pipe rotationally connected with the second communicating pipe is arranged in the softening tank, the bottom of the water conveying pipe communicates with a circulating pipe, the circulating pipe is fixedly connected with the softening tank, a plurality of circulating holes are formed in the side wall of the circulating pipe, a spiral groove is formed in the inner side face of the circulating pipe, and the circulating pipe is connected with a material abutting plate through the spiral groove; a transmission part is fixedly connected to the upper surface of the abutting plate and abuts against the inner side face of the circulating pipe, a water conveying groove is spirally formed in the outer side face of the transmission part, a water outlet pipe fixedly communicates with the side wall of the first communicating pipe, and a sewage pump fixedly communicates with the bottom wall of the softening tank. The resin particle softening device has the effect that the softening effect of the resin particles on the water for the beverage is improved while the resin particles can continuously soften the water for the beverage.

The invention relates to the technical field of CO2 geological sequestration, and provides a pore scale multi-field coupling model construction method for salt precipitation caused by CO2 injection in a salt water layer, which performs numerical simulation on real-time distribution of related variables such as flow velocity, temperature and concentration in a domain at a pore scale, can realize accurate research on a salt precipitation micromechanism during CO2 injection, and can realize accurate research on the salt precipitation micromechanism during CO2 injection. The method comprises the following steps that S1, a two-dimensional single-pore geometric model is established, and the two-dimensional single-pore geometric model comprises a fluid inlet, a fluid outlet and a pore wall connecting the fluid inlet and the fluid outlet, wherein the fluid inlet and the fluid outlet are parallel to each other; s2, respectively establishing a CO2 material and a saline material, adding a physical field, setting boundary conditions and initial conditions of the two-dimensional single-pore geometric model, and performing grid division on the two-dimensional single-pore geometric model; and S3, performing parameter calculation according to the two-dimensional single-pore geometric model, the CO2 material, the saline material and the physical field, and obtaining a micromechanism according to an obtained calculation result.

The invention relates to the technical field of water treatment, and particularly discloses a pure water filtering device and method.A treatment box is internally provided with a water inlet cavity, a water outlet cavity and a regeneration cavity used for containing saline water from top to bottom, a threaded guide part is fixedly arranged in the water outlet cavity and extends in the vertical direction, and the threaded guide part is sleeved with an inner sleeve part in a threaded mode; an outer sleeve frame is coaxially and rotationally arranged on the outer side of the inner sleeve piece; the filter cartridge is arranged in the outer sleeve frame, the top end of the filter cartridge is fixedly connected with the outer sleeve frame, and the filter cartridge communicates with the water inlet cavity and can enter and exit from the regeneration cavity; a wavy or fold-line-shaped convex edge is arranged at the bottom of the inner sleeve piece, a blocking piece abutting against the convex edge is arranged on the bottom wall of the filter cylinder, and the filter cylinder can stretch and retract, so that when the convex edge rotates to push the blocking piece to move downwards, the blocking piece drives the filter cylinder to stretch, and the pores of the filter cylinder are increased. According to the pure water filtering device and method, automatic purification of resin is achieved through stretching and retracting of the filter cartridge and stirring of the convex edge, disassembly and assembly of the filter cartridge are avoided, operation is easy, and time and labor are saved.

The present invention includes systems and methods for a continuous-wave (CW) radar system for detecting, geolocating, identifying, discriminating between, and mapping ferrous and non-ferrous metals in brackish and saltwater environments. The radar system (e.g., the CW radar system) generates multiple extremely low frequency (ELF) electromagnetic waves simultaneously and uses said waves to detect, locate, and classify objects of interest. These objects include all types of ferrous and non-ferrous metals, as well as changing material boundary layers (e.g., soil to water, sand to mud, rock to organic materials, water to air, etc.). The radar system (e.g., the CW radar system) is operable to detect objects of interest in near real time.

The invention relates to the technical field of deep underground space stratum reinforcement, in particular to a CO2 transcritical freezing system and method.The CO2 transcritical freezing system comprises a freezing subsystem which comprises a first liquid inlet pipe and a first liquid return pipe which are arranged above a stratum and used for conveying low-temperature liquid CO2 to the stratum to conduct stratum freezing construction; the liquefaction subsystem is used for compressing the volume of the normal-temperature gaseous CO2, so that the movement of molecules in the gaseous CO2 is limited and reduced, and the gaseous CO2 is converted into low-temperature liquid CO2; and an inlet and return pipeline subsystem. The CO2 medium adopted by the invention effectively solves the problems of flammability, explosiveness, high risk, difficulty in treatment, environmental pollution and the like caused by liquid ammonia and saline water utilized in the traditional freezing construction; and a water-bearing layer, a soft stratum and the like are frozen and reinforced through compressed and converted low-temperature liquid CO2, a water-resisting layer and a temporary support are formed, seepage of water and sinking, displacement and collapse of the wall face and the bottom plate are effectively prevented, and the stability of the frozen area to be excavated is improved.

The invention relates to the technical field of agricultural engineering and ecological environment protection, in particular to a saline-alkali soil desalination improvement system and method based on brackish water recycling. The system comprises a data collection module which collects soil salinity data, meteorological data and crop growth data of the saline-alkali land in real time; the data processing and analyzing module is used for receiving and preprocessing the soil salinity data, the meteorological data and the crop growth data of the saline-alkali land, constructing a soil salinity prediction model and outputting a soil salinity prediction result; the irrigation strategy decision module is used for generating an optimal irrigation strategy by adopting a reinforcement learning algorithm according to the soil salinity prediction result and the preprocessed crop growth data; and the irrigation control system is used for performing brackish water irrigation operation on the saline-alkali soil according to the optimal irrigation strategy. Precise regulation and control of saline-alkali soil salinity can be achieved, brackish water is adopted as irrigation water, water resources are saved to a certain degree, and therefore the improvement cost of saline-alkali soil is reduced.

The invention provides a vacuum concealed pipe circulating water salt elimination system which comprises a plurality of concealed pipes which are respectively connected with a water conveying pipe through a water collecting pipe; the concealed pipe comprises a pipe body, and a plurality of water collecting holes are formed in the pipe body; each water collecting pipe is provided with a vacuum negative-pressure drainage device, the water conveying pipe is connected with a salt washing water treatment device, and the water conveying pipe is provided with a water suction pump; a water outlet pipe is further connected to the salt washing water treatment device, and the water outlet pipe is connected with an irrigation leaching water distribution device used for leaching soil; the front end of the electrodialysis treatment unit is connected with a water storage tank, and the rear end of the electrodialysis treatment unit is connected with a fresh water tank. Water and air in soil are pumped out through air pumping of the vacuum pump, negative pressure is formed, and the water drainage speed in the concealed pipe salt drainage process is increased, so that the single-time salt leaching time is shortened, the salt drainage efficiency is greatly improved, the concealed pipe laying investment cost is reduced, water is saved, and water pollution caused by direct drainage of salt washing water is prevented.

The invention provides an evaporation energy-saving self-adaptive regulation and control method and system under multi-parameter analysis, and relates to the technical field of data processing, and the method comprises the steps: obtaining an evaporation control parameter space of a single-effect evaporator, and randomly selecting a plurality of initial evaporation control parameters meeting a uniform distribution constraint; based on the solution attributes, the environmental parameters and the expected concentration indexes of the to-be-evaporated saline water, evaporation efficiency prediction of the multiple initial evaporation control parameters under multiple nodes of a preset time zone is executed, multiple predicted evaporation efficiency sets are obtained, and multiple evaporation fitness degrees are obtained through evaluation; and by taking the evaporation control parameter space as a constraint, carrying out evaporation control parameter optimization according to the plurality of evaporation fitness, outputting an optimal evaporation control parameter, and controlling the single-effect evaporator to carry out evaporation operation. The technical problems that in the prior art, due to the fact that a multi-parameter collaborative optimization method is lacked, energy consumption is high in the brine evaporation process, and adaptability to environment changes is poor are solved, and the technical effects of improving evaporation efficiency and reducing evaporation energy consumption are achieved.

The invention discloses a printing and dyeing wastewater zero-discharge treatment process based on low-pressure high-power membrane concentration and salt separation synergy. The wastewater is sequentially subjected to the steps of double-alkali softening pretreatment, organic pollutant treatment, forward osmosis low-pressure high-power concentration treatment, salt separation treatment and evaporative crystallization. Wherein the forward osmosis low-pressure high-power concentration treatment is performed in a partitioned manner along the flow direction, the osmotic pressure difference is gradually increased, the transmembrane pressure difference is gradually decreased, and interface electrochemical buffer and low-frequency gas-liquid disturbance can be set to inhibit concentration polarization and pollution. Carrying out nanofiltration and salt separation on the concentrated solution to obtain two paths of saline water mainly comprising Na2SO4 and NaCl, and respectively carrying out evaporative crystallization on the two paths of saline water; and refluxing and reusing the water produced by the draw solution. According to the process, high-power concentration and stable salt separation are realized under low mechanical pressure, the energy consumption is reduced, the water recovery rate and the crystal purity are improved, and zero discharge of wastewater is realized.

The invention discloses a low-temperature multi-effect evaporation-based impurity salt treatment process method, and relates to the technical field of industrial waste salt treatment in the chemical industry. According to the scheme, firstly, impurity salt is dissolved and then pretreated by a fluorine removal tank and a multi-medium filter, and pretreated saline water is obtained; then, organic matters and dissolved substances are removed through a catalytic oxidation and nanofiltration device, and a monovalent salt solution and a divalent salt solution are separated out; then, the monovalent salt solution is subjected to reverse osmosis concentration and then enters a low-temperature multi-effect evaporation system for sodium chloride crystallization, and the divalent salt solution is subjected to catalytic oxidation and then enters low-temperature multi-effect evaporation for sodium sulfate crystallization. And finally, the mother liquor subjected to low-temperature multi-effect evaporation is refluxed and retreated, and resources are further concentrated. According to the invention, the waste salt treatment efficiency is effectively improved by optimizing the chemical addition of the sedimentation tank. By adopting a low-temperature multi-effect evaporation technology, the energy efficiency is optimized, the energy loss is reduced, the crystallization efficiency is improved, and the resource recovery rate is increased. And a mother liquor backflow retreatment mechanism reduces waste liquid discharge and reduces environmental burden.

It is hereby proposed a computer-implemented method of machine-learning a plurality of predictive basin-wise models. Each predictive basin-wise model is configured for predicting a concentration of an element at a given location in a saline aquifer of a respective basin. The machine-learning method comprises, for each basin and with respect to a predetermined set of one or more geochemical variables, providing a dataset, and learning the predictive basin-wise model based on the dataset. The dataset comprises, for respective saline aquifer locations of the basin, training samples. Each training sample includes a measurement of one or more geochemical variables of the predetermined set. Each training sample further includes a respective ground truth value. The ground truth value represents a concentration of the element at the respective saline aquifer location. Such a method forms an improved solution for analysis of a saline aquifer with respect to a given element of interest.

The invention discloses a high-temperature-resistant low-damage high-density solid-free well killing fluid which comprises 50-80 parts of water, 10-40 parts of calcium chloride, 10-40 parts of calcium bromide, 0.5-2 parts of a temperature-resistant tackifier, 1-3 parts of a temperature-resistant filtrate reducer, 0.5-2 parts of a high-temperature stabilizer, 0.5-3 parts of a high-temperature corrosion inhibitor, 0.5-2 parts of a salt crystallization inhibitor and 0.1-1 part of a waterproof locking agent. The technical problems that the saline water base fluid is unstable in density in a high-temperature environment, a reservoir is damaged, and a shaft is corroded are solved. The invention also discloses a preparation method of the high-temperature-resistant low-damage high-density solid-free kill fluid, which comprises the following steps: adding the water into a stirring kettle, then adding the calcium chloride, the temperature-resistant filtrate reducer, the temperature-resistant tackifier and the high-temperature corrosion inhibitor, uniformly stirring, and supplementing the calcium bromide during stirring to obtain a mixture; a salt crystallization inhibitor is injected into the stirring kettle, meanwhile, a high-temperature stabilizer is added, the stirring kettle is heated for full stirring, and the well killing fluid is obtained.

The invention relates to the technical field of waste liquid treatment, and discloses a continuous salt separation type high-concentration brine heat exchange process which comprises the following steps: inputting high-concentration brine into a first evaporation tank through a stock solution pipeline, and concentrating and evaporating the high-concentration brine in the first evaporation tank; when the first monitoring assembly monitors that the monitoring index value of the feed liquid in the first evaporation tank reaches a first threshold value, the feed liquid capable of separating salt is input into the relay barrel; the liquid outlet pipeline is used for inputting salt-separable material liquid in the relay barrel into the second evaporation tank; the salt separation pipeline is used for feeding salt separation feed liquid subjected to heat exchange of the shell-and-tube heat exchanger into the centrifugal assembly for salt separation; intermittent evaporation and concentration and continuous salt separation are synchronously carried out, so that the problem that high-concentration brine cannot be concentrated to a salt separation state during concentration and evaporation so as to cause insufficient treatment of the high-concentration brine can be effectively avoided, and the influence of separated salt and scale on a tank body when the evaporation concentration reaches the salt separation state can be avoided; the service life of the tank body is short; and subsequent evaporation and concentration are influenced.

The invention discloses a method for safely irrigating saline water with different mineralization degrees and reducing salt in a plough layer, and relates to the technical field of agricultural irrigation, and the method is characterized by comprising the following steps: monitoring the mineralization degree of irrigation water and soil moisture and salt dynamic states under various irrigation mode conditions; through a soil column simulation test, a saline water mineralization degree threshold value suitable for irrigation of saline-alkali cultivated lands with different soil properties and salt contents is found; performing a plot test in the field, and establishing an irrigation water-soil water-underground water salt migration model under various irrigation modes; hYDRUS-1D software is adopted for dynamic simulation and prediction of soil hydrothermal salt coupling migration under different saline water irrigation conditions. The method can be suitable for different soil texture types, crop types and underground water conditions, the salt content of the saline-alkali cultivated land can be effectively reduced, on the premise that crop growth is guaranteed, salt water resources are utilized to the maximum extent, irrigation cost is reduced, sustainable utilization of the saline-alkali cultivated land is achieved, and the method has important practical application value.

The utility model relates to a brine refining filter which comprises a filter cartridge (13), a filter screen (14) and a filter element (15); a turbine (21), a bevel gear (23) and a straight gear (24); the rotating shaft (26) is rotationally connected with the mounting shell (22), and a scraping plate (27) is rotationally arranged at the end part of the rotating shaft (26) and is in contact with the surface of the filter screen (14); to-be-treated saline water enters the filter cartridge (13) through the water inlet pipe (11) and drives the turbine (21) to rotate and drives the mounting shell (22), the rotating shaft (26) and the scraper (27) to revolve around the central shaft (25), and meanwhile, the straight gear (24) is meshed with the fixedly arranged bevel gear (23) and drives the straight gear (24), the rotating shaft (26) and the scraper (27) to rotate, so that the scraper (27) can simultaneously rotate and revolve around the center of the filter screen (14) to scrape impurities on the surface of the filter screen (14); the impurity removal effect is good, and the filter screen (14) is effectively prevented from being blocked to influence the filtering efficiency.

The invention provides a method for recovering Si, C and TiO2 based on chlorinated waste salt water quenching slag, which comprises the following steps: sequentially carrying out water quenching dissolution, precipitation separation and filter pressing dehydration treatment on chlorinated waste salt to obtain water quenching slag and supernate; adding a dilute acid solution into the water-quenched slag, dissolving, and adding a reducing agent for reaction to obtain slurry; carrying out solid-liquid separation on the slurry to obtain a solid material and filtrate; the filtrate is pumped into a boiling bed separator, the petroleum coke and TiO2 are intercepted by a medium material layer, clear liquid is discharged, then the medium material layer is subjected to backwashing regeneration, and the desorbed petroleum coke and TiO2 are subjected to graded enrichment by a hydrocyclone, so that petroleum coke slurry and TiO2 slurry are obtained. According to the method, TiO2, C and other resources in the water-quenched slag obtained after molten salt chlorination waste salt water quenching are recycled, and the technical problem that in the existing chlorination waste salt resourceful treatment process, Si, C, TiO2 and other resources in the water-quenched slag are wasted is solved.

A system and method are provided in at least one embodiment to process water to produce gas that can be separated into at least two gas flows using a water treatment system having a disk-pack rotating in it to cause out gassing from the water. In a further embodiment, the method and system use the gas released from the water to produce substantially fresh water from the processed salt water.

The invention relates to a seawater electrolysis hydrogen production system and a control method thereof. The seawater electrolysis hydrogen production system comprises an electrolytic bath (16), an oxygen-liquid separator (1), a hydrogen-liquid separator (6), a seawater heat exchanger (28), a seawater condenser (32), an alkali liquor heat exchanger (12), a hardness-removed low-salt water storage tank (40), a separated salt storage tank (45), an alkali tank (20) and a water tank (18). According to the seawater electrolysis hydrogen production system, waste heat generated in the electrolysis process can be effectively utilized to remove ions easy to deposit in seawater, the concentration of monovalent ions in the seawater is reduced so that the monovalent ions can serve as raw water for water electrolysis hydrogen production, and meanwhile the content of accumulated salt in the hydrogen production system is reduced in the mode that the solvent is evaporated to separate out salt; the method is used for solving the adverse effect of ions in seawater on the performance of a seawater electrolysis hydrogen production system.

The invention provides a method for determining the residual yield of shale gas based on methane carbon isotope change in desorption gas. The method comprises the following steps: S1, putting a shale sample into a desorption tank filled with saturated salt water, and sealing; s2, placing the desorption tank in water, recording the volume of desorption gas according to the desorption time by using a drainage method, and collecting the desorption gas; s3, according to the analytic gas collected in each analytic time period, calculating accumulated total analytic gas, and calculating the proportion of the analytic gas in each analytic time period to the total analytic gas to obtain a stage accumulated analytic rate; s4, measuring the ratio of methane carbon isotope delta 13C in the desorption gas when the desorption rate is accumulated in each stage; and S5, establishing a change curve of the stage cumulative analysis rate of the shale gas and the methane carbon isotope delta13C so as to obtain a model for predicting the shale gas productivity stage. The invention provides a non-destructive and direct gas potential measurement means, which is high in accuracy and can be well adapted to shale gas prediction.

The utility model provides a filtering structure and a strong brine reduction device, and belongs to the technical field of strong brine treatment. The filtering structure comprises a filtering assembly and a cleaning assembly, the filtering assembly comprises a tank body and a filtering plate, the filtering plate is arranged in the tank body, the filtering plate is conical, the cleaning assembly comprises a rotating shaft, a motor, an elastic piece, a scraping plate, a cleaning window plate and a stirring rod, the rotating shaft is rotationally arranged in the tank body, and the motor is arranged in the tank body. By arranging the tank body, the filter plate, the rotating shaft, the motor, the elastic piece, the scraper blade, the cleaning window plate and the stirring rod, the conical filter plate is beneficial to guiding filtered objects to fall to the edge, the filtering effect is guaranteed, the scraper blade is tightly attached to the filter plate through the elastic piece, the scraping and cleaning effects of the filter plate are improved, and the filtering effect is improved. After use, the cleaning window plate is opened to clean impurities of filtered substances, and the stirring rod stirs and mixes the filtered strong brine and the medicament for treatment.

The invention discloses a salt spray test box, which belongs to the technical field of corrosion resistance testing, and comprises a salt spray test box body, and an anti-blocking mechanism is arranged in the salt spray test box body; according to the salt spray test box, the anti-blocking mechanism is arranged, so that the problem that the salt spray test box is easily blocked by salt particles in the long-time operation process is effectively solved, the anti-blocking mechanism adopts matched work of a cleaning brush, a scraper blade and a reset spring, continuous cleaning of a filter screen and a conveying pipe is ensured, and specifically, after a salt-water mixture enters the conveying pipe, the salt-water mixture is prevented from entering the conveying pipe; the transmission system drives the support to rotate, the support rotates to drive the reset spring to rotate and push the supporting plate and the cleaning brush to move, the cleaning brush is tightly attached to the surface of the filter screen, automatic cleaning is carried out, undissolved salt particles are prevented from entering the conveying pump and the spray head, and it is ensured that salt water can be evenly and cleanly conveyed to a test sample; and equipment faults caused by salt particle blockage are avoided.