1467 results about "Desalination" patented technology

The invention relates to the technical field of saline-alkali soil improvement, in particular to a saline-alkali soil treatment and improvement method which comprises the following steps: S1, early-stage investigation and planning; s2, physical improvement; s3, chemical improvement; s4, biological improvement; s5, irrigation improvement; s6, later monitoring and maintenance; according to the saline-alkali soil treatment and improvement method, a traditional single improvement mode is broken through, physical, chemical, biological and engineering technologies are fused, a systematic improvement scheme is formed, and physical improvement effectively improves the soil structure and accelerates salt discharge through land leveling, deep ploughing, upturned soil sunning and concealed pipe laying for drainage; a soil conditioner and an acidic material are precisely applied for chemical improvement, and the soil acidity and alkalinity and ion composition are adjusted; in biological improvement, salt is absorbed by virtue of salt-tolerant plants and microbial agents, and soil microbial communities are improved; a fresh water resource or salt water desalination technology is reasonably utilized for irrigation improvement, and salt leaching and water resource recycling are achieved; through the synergistic effect of multiple means, the salt content of soil can be more efficiently reduced, and the soil structure is improved.

The invention discloses an integrated process for cooperative treatment and up-to-standard discharge of industrial wastewater and domestic wastewater of a power plant, and relates to the field of cooperative treatment of wastewater and sewage, and the integrated process comprises the following steps: configuring a raw water collection system, setting a raw water source, configuring a multi-stage filtration and heating pretreatment process, configuring an ultrafiltration membrane system, and setting a fine filtration path. A first-stage reverse osmosis system is configured, reverse osmosis parameters are set, a second-stage reverse osmosis system is configured, a low-conductivity water treatment path is set, a mixed ion exchanger is configured, a desalted water output path is set, a standby pool body is set, and the adjusting capacity is set. A raw water collecting system, a multi-stage filtering and heating pretreatment process, an ultrafiltration membrane system, a first-stage reverse osmosis system, a second-stage reverse osmosis system, a mixed ion exchanger and a standby pool body are sequentially arranged in the process. The problems of unstable effluent quality, insufficient deep desalination capability and poor emergency regulation capability in a traditional power plant wastewater treatment mode can be effectively solved.

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 relates to the technical field of water treatment, in particular to a high-recovery-rate short-process salt-tolerant reverse osmosis system and treatment method.The system comprises a pretreatment unit, a sensor monitoring unit, a self-adaptive pressure-flow coupling control unit, an intelligent operation and maintenance unit and a gradient boosting reverse osmosis membrane set. According to the invention, ultrahigh recovery rate and desalination performance are realized, gradient boost membrane module design is combined with concentration polarization inhibition technology, membrane surface flow state distribution is optimized, osmotic pressure influence is significantly reduced, pressure-flow coupling control and concentrated water excess pressure energy recovery technology are integrated, energy dynamic cyclic utilization is realized, energy consumption is reduced, and the method is suitable for industrial production. By monitoring the membrane flux attenuation rate and the transmembrane pressure difference in real time and dynamically optimizing a pulse cleaning strategy, dynamic optimization of high-salinity wastewater treatment is realized, and the problems of low recovery rate, high energy consumption and quick membrane pollution in high-salinity wastewater treatment are solved.

The invention discloses a regulation and control method for stably improving the water quality of water produced by a reverse osmosis system of a power plant, and relates to the field of water quality regulation and control, which comprises the following steps: configuring a water inlet flow regulation device, performing initial setting, configuring the position of an online sensor, performing data acquisition, setting judgment rules of turbidity, differential pressure and transmembrane pressure difference, and determining the water quality. And configuring a flocculant adding device and adding control logic, configuring a backwashing and adding linkage control state machine, and carrying out data smoothing, trend analysis and self-adaptive threshold adjustment. When the water quality of the raw water fluctuates for a short time or the pollution load is increased, dynamically adjusting the water inlet flow, the backwashing intensity and the flocculant adding concentration based on parameters such as turbidity, pollution index, conductivity and pressure difference which are acquired by an online sensor in real time; and meanwhile, the concentrated water reflux proportion and the high-pressure pump frequency are automatically corrected by continuously calculating the desalting rates of the first-stage and second-stage reverse osmosis devices, so that the running state of the membrane component is kept in an optimal interval.

The invention discloses an ammonia-nitrogen wastewater treatment device and method capable of generating target ammonium salt, the ammonia-nitrogen wastewater treatment device comprises a bipolar membrane electrodialysis device and a membrane contactor, the bipolar membrane electrodialysis device comprises at least one treatment unit and an anode chamber and a cathode chamber which are separated by the treatment unit; the treatment unit comprises a front bipolar membrane, a front cation exchange membrane, a middle bipolar membrane, an anion exchange membrane, a rear cation exchange membrane and a rear bipolar membrane which are sequentially arranged in the direction from the anode chamber to the cathode chamber, and a feeding chamber, an ammonia production chamber, an acid production chamber, a desalting chamber and an alkali production chamber are respectively formed in spaces generated between the corresponding membranes; the membrane contactor comprises a breathable hydrophobic membrane dividing an inner cavity of the membrane contactor into a first chamber and a second chamber, and the first chamber and the second chamber communicate with the ammonia production chamber and the acid production chamber through pipelines correspondingly. And the method has relatively high application and popularization values.

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 whole-course green rapid improvement method for a severe soda saline-alkali paddy field, and belongs to the technical field of soil improvement. The method is suitable for paddy field improvement of severe soda saline-alkali soil with 0-20 cm surface soil layer alkalization degree of more than 20%, and is characterized in that the whole process is green and rapid. The rapid improvement method for the soda saline-alkali soil paddy field is different from a traditional pure solid improvement mode, a solid-liquid combined whole-growth-period comprehensive improvement technology is adopted, and the production technical problems that solid improvement is low in uniformity and poor in pertinence are solved. The pH value of soda saline-alkali paddy field soil and water is rapidly reduced, salt in the soil is rapidly dissolved, the effect of rapid salt and alkali removal is achieved through field steeping and salt leaching measures, and meanwhile nutrient loss in the salt and alkali removal process is reduced.

The utility model discloses a self-cleaning water purification system and a water purifier wherein the self-cleaning water purification system comprises: a filter module, the filter module comprises a first filter element, the first filter element is a reverse osmosis filter element, and the first filter element is used for desalting and filtering a water source to be filtered; the gas-liquid treatment module is used for carrying out gas-liquid mixing treatment on the to-be-filtered water source and the to-be-mixed gas so as to generate microbubble water; the switch module comprises a plurality of switches, and the plurality of switches are used for guiding the flowing direction of the water source to be filtered and the microbubble water; the control module is used for controlling the switch module, so that the microbubble water flows to the first filter element to clean the surface of the reverse osmosis membrane of the first filter element. Therefore, by cleaning the first filter element, the effluent quality and flow of the self-cleaning water purification system can be improved, so that the service life of the filter element is prolonged, the replacement cost of the filter element is reduced, and the use experience of a user is improved.

The invention discloses a method for preparing activated carbon from mariculture bottom mud doped with biomass and application. The preparation method of the activated carbon comprises the following steps: desalting the mariculture bottom mud to obtain low-salt bottom mud particles; uniformly mixing the low-salt sediment particles with biomass powder according to a ratio of 1: (3-5), and carrying out pyrolysis carbonization at 350-450 DEG C in a nitrogen atmosphere to obtain a pre-carbonized biomass material; and uniformly mixing the pre-carbonized biomass material and an activator according to a mass ratio of 1: (4-5), placing the mixture in a ball milling tank, carrying out mechanochemical ball milling, transferring the ball-milled mixture to a tubular furnace, and carrying out high-temperature activation at 800-1000 DEG C in a nitrogen atmosphere to obtain the activated carbon. The material has a hierarchical porous structure and a relatively high specific surface area, can adsorb and remove various pollutants, particularly has relatively high adsorption capacity for VOCs and CO2, can be produced in batches, is low in cost, wide in applicable temperature range and long in service life, and has a good application prospect.

The invention relates to the technical field of agriculture, in particular to a plant nutrient solution for saline-alkali soil improvement and a preparation method thereof. The invention relates to a preparation method of a plant nutrient solution for improving saline-alkali soil. The preparation method comprises the following steps: preparing NO3-intercalated layered double hydroxides and acid modified calcium-based montmorillonite; preparing humic acid chelated calcium magnesium powder; preparing a binary compound; and preparing the plant nutrient solution. The preparation method comprises the following steps: preparing NO3-intercalated layered double hydroxides from calcium nitrate tetrahydrate and aluminum nitrate nonahydrate, carrying out acid modification on calcium-based montmorillonite by using dilute sulphuric acid, purifying humic acid, and mixing with calcium chloride and magnesium chloride hexahydrate to prepare humic acid chelated calcium magnesium powder. Finally, the three components are added into pig excrement fermentation liquor to prepare a plant nutrient solution, an adsorption-replacement-leaching closed loop can be formed, the desalination and alkali reduction efficiency is remarkably improved, the soil structure is improved, the effect of synergistically improving the saline-alkali soil is achieved, and therefore plant growth is promoted.

Systems and methods for crude oil desalting technology are provided. More specifically, systems and methods for the usage of waste heat from compression to treat high salinity water are provided. The systems and methods generate recycled water streams for desalter treatment. The systems and methods can treat high salinity waters from desalters and dehydrators. The high salinity streams are introduced to the compressed gas streams, where the waste heat causes the water portion of the water streams to evaporate, resulting in a fully or near-saturated gas stream and a concentrated waste water stream. The saturated gas streams are cooled and condensed, and low TDS water is separated from the gas stream in knockout drums. The low TDS water can be reintroduced to the desalting system as wash water, generating a circular water reuse.

A leaching and desalinating system for sandy soil in estuarine land reclaimed by sand blowing before planting greenery is provided. The leaching and desalinating system comprises a water pump and pipe assembly, a freshwater storage tank and a main diverting and draining channel. The water pump and pipe assembly lifts freshwater from a river to the freshwater storage tank through a water delivery pipe, multiple infiltration parts in which greenery is planted are provided on the waterside slope, the infiltration parts are connected to each other via multiple drainage infiltration channels. The present disclosure can quickly desalinate the sandy soil in land reclaimed by sand blowing at a low cost, improve the physicochemical properties of the soil, and provide a basic guarantee for the subsequent greenery planting on the sandy soil in land reclaimed by sand blowing.

The invention relates to the technical field of water treatment, and provides a reverse osmosis membrane cleaning method, a cleaning agent composition and application. According to the method, whether cleaning is needed or not is determined by comparing initial operation parameters and current operation parameters of a system; the pollutant type is accurately judged by observing the appearance characteristics of the membrane surface and detecting related index parameters; and selecting a corresponding cleaning agent formula according to the pollutant type, and sequentially performing physical washing and chemical cleaning. The cleaning agent composition comprises a biological pollution cleaning agent, an organic pollution cleaning agent and / or an inorganic scaling cleaning agent. By establishing a scientific pollution diagnosis system and a targeted cleaning strategy, the problems of fixed cleaning scheme and low pertinence in the prior art are solved, the pressure difference recovery rate after cleaning can reach 90% or above, the desalination rate recovery rate can reach 99% or above, the cleaning efficiency is remarkably improved, the operation cost is reduced, and the service life of the membrane is prolonged.

The utility model belongs to the technical field of solid waste treatment, and particularly relates to a fly ash harmless and resourceful treatment system. The harmless and recycling treatment system for the fly ash comprises a mixing and stirring unit, a fluidized bed drying and preheating unit, a dioxin catalytic cracking unit, a washing and desalting unit, an evaporative crystallization and salt production unit and a flue gas treatment unit, the mixing and stirring unit is used for stirring and mixing fly ash, a curing agent and a catalyst according to a set proportion; a gas outlet of the dioxin catalytic cracking unit is connected with a gas inlet of the fluidized bed preheating and drying unit, a gas outlet of the fluidized bed preheating and drying unit is connected with a gas inlet of the evaporative crystallization salt-making unit, and a gas outlet of the evaporative crystallization salt-making unit is connected with a gas inlet of the flue gas treatment unit. According to the utility model, the energy consumption is greatly reduced and the cost is saved while harmless and resourceful treatment of the fly ash is realized.

The invention relates to the technical field of data processing, and discloses an automatic control method and system for wastewater desalination treatment based on the Internet of Things. The method comprises the following steps: acquiring a membrane surface image, an interface potential, an infrared spectrum, a transmembrane pressure difference, a feeding flow rate and a flocculation image; calculating a salt gradient attention feature vector according to the salt concentration difference value and the Beckey number; inputting the multi-modal data into a membrane pollution time sequence memory network to obtain a pollution development rate and a flocculant adding proportion; extracting a floc particle size parameter to obtain a flocculation effect score; and constructing a multi-objective function optimization solution to obtain a control instruction. The salt gradient attention mechanism and the membrane pollution time sequence memory network are introduced, and visual image recognition and multi-modal data fusion are combined, so that the problems of inaccurate membrane pollution state evaluation, low intelligent level of a control algorithm and insufficient multi-target collaborative optimization capability in the prior art are solved; the automation level and the treatment efficiency of wastewater desalination treatment are improved.

The invention relates to the technical field of comprehensive utilization of solid wastes, and discloses a soil conditioner prepared from coal-based solid wastes and a preparation method thereof, the soil conditioner comprises the following raw materials by weight: 80-100 parts of coal-based solid wastes, 5-15 parts of an inorganic salt material, 100-150 parts of pure water, 1-10 parts of a microbial agent fertilizer and 20-50 parts of crop straw biochar. According to the scheme, the inorganic salt is added, so that multivalent cations such as calcium, iron and aluminum are loaded on the coal-based solid waste and can be replaced with exchangeable sodium ions on soil colloid, and the soil desalting efficiency is improved; the crop straw biochar can increase the content of nutrient elements such as carbon, nitrogen and phosphorus for soil; the porous structure of the modified coal-based solid waste can provide a proper place for growth and reproduction of microorganisms, and the soil microenvironment is improved; the soil conditioner is simple in raw material composition, the coal-based solid waste is used as the main raw material for improving the saline-alkali soil, the source is wide, the production cost is low, pollution to the environment is avoided, and large-area popularization and application in saline-alkali soil areas can be facilitated.

The invention relates to the technical field of water treatment, and discloses a method for circularly inducing crystallization, hardness removal and desalination of calcium carbonate. Adding the seed crystal into high salt water; adding sodium hydroxide into the heavy salt water; adding sodium carbonate to generate a supersaturated solution; introducing the solution containing the calcium carbonate crystal nucleus into crystallization equipment; treating the reacted solution through solid-liquid separation equipment; further desalting the water body subjected to hardness removal by adopting a membrane separation mode; collecting and treating the formed calcium carbonate precipitate, and recovering the precipitate by adopting a separation technology; by adopting the synthesized vaterite type seed crystal, the hardness removal and desalination efficiency is remarkably improved in the cyclic induced crystallization process of calcium carbonate. Compared with the traditional non-synthetic seed crystal, the synthetic seed crystal has higher surface area and uniformity, so that the combination of calcium ions and carbonate ions can be more quickly induced to form a stable crystal nucleus, and the overall effect of the reaction is finally improved.

The invention belongs to the technical field of road deicing, and particularly relates to an environment-friendly snow and ice removing vehicle which comprises a vehicle body, an ice and snow removing device, a heating system and a water treatment system, the vehicle body is provided with an equipment bin, an ice and snow melting bin and an anti-freezing water bin, and a PV / T device used for providing electric energy for a motor and a vehicle-mounted hydrogen production device of the vehicle body is laid on the vehicle body; the ice and snow removing device is used for conveying ice and snow into the ice and snow melting bin; the heating system is used for heating ice and snow in the ice and snow melting bin; the water treatment system comprises a cyclone desanding device, an electrochemical disinfection device and a reverse osmosis device which are sequentially communicated, the cyclone desanding device is communicated with the ice and snow melting bin and used for removing large-particle impurities in water, the electrochemical disinfection device is used for removing microorganisms in the water, a water outlet of the reverse osmosis device is communicated with the anti-freezing water bin, and a water outlet of the reverse osmosis device is communicated with the ice and snow melting bin. And the water desalted and purified by the reverse osmosis device is discharged into the anti-freezing water sump. The system has the beneficial effects that the energy utilization efficiency is improved, and cyclic utilization of water resources is achieved.

The invention relates to the technical field of water treatment, in particular to a self-adaptive desalting and recycling treatment device for high-silicon and high-salinity wastewater, which comprises a membrane desalting device, a descaling and dosing device positioned in front of the membrane desalting device, a collection and storage integrated module, a data collection module, an operation analysis module and a dynamic regulation and control module, the operation analysis module corrects the operation mode according to the historical incoming water volume data and the operation mode of the membrane desalination device in combination with the previous incoming water volume data; the dynamic regulation and control module adjusts the dosage of a descaling agent according to the current incoming water quality data, and determines the working state of the data acquisition module according to the pipeline basic data so as to determine the self-regulation mode of the membrane desalination device; the problem that the quality and quantity of high-silicon and high-salt wastewater are unstable due to changes of a front-end production process is solved, automatic switching of the running state of the membrane desalting device and dynamic adjustment of running data are achieved, then impact of the wastewater on a membrane is reduced, the membrane cleaning period is prolonged, and the running stability of the membrane desalting device is improved.

The utility model discloses a humidifying and dehumidifying salt-containing waste liquid concentration device and system, belongs to the technical field of hot desalination, can solve the problems of promoting water vapor flow and improving concentration efficiency, and is technically characterized in that a spraying component of a humidifying bin sprays salt-containing waste liquid input into the humidifying bin from a circulating waste liquid inlet to form water vapor and salt-containing liquid drops; the interior of the humidifying bin is filled with the filler; a condensation component of the dehumidification bin condenses water vapor introduced into the dehumidification bin from a water vapor inlet of the first dehumidification bin to form water drop liquid, a connecting channel enables the water vapor to be introduced into the dehumidification bin from the interior of the humidification bin, and the fresh air supply component comprises an air supply pipeline and an air blowing component; the air supply pipeline is communicated with the interior of the humidifying bin through the first humidifying bin air supply inlet, and an air outlet of the air blowing component faces the first humidifying bin air supply inlet, so that the heating efficiency of the whole device is improved, the energy source is wide, and waste heat, waste steam, solar energy, wind energy, terrestrial heat and other low-grade heat sources in industrial production can be utilized for working.

The invention discloses a treatment system and method for waste incineration fly ash washing liquid cooperating with flue gas purification, and the system comprises a semi-dry desulfurization tower, a dust remover, an ash silo, a washing tank, a buffer tank, a water supply preheater and a wet washing tower which are connected with a main flue of an incineration plant, the method comprises the following steps: transferring waste incineration fly ash collected in the system into the water washing tank, and adding water for washing to obtain water washing liquid and desalted fly ash; the method comprises the following steps: spraying fly ash water washing liquid by using a wet washing tower, recovering tail flue gas waste heat, deeply removing residual acid gas in flue gas, concentrating and reducing the water washing liquid, and controlling the spraying amount to adjust the concentration ratio so as to realize the separation and solid-liquid separation of chlorine salt; introducing the concentrated water washing liquid into a semi-dry desulfurization tower, atomizing the water washing liquid into fine liquid drops by using a rotary atomizer, contacting the fine liquid drops with hot flue gas, evaporating the fine liquid drops to dryness, and absorbing acid gas in the flue gas at the same time, thereby realizing zero emission of the water washing liquid and cooperating with flue gas purification. According to the invention, the problem of high energy consumption of fly ash washing liquid treatment is solved, and the resource utilization rate of the washing liquid is improved.

A system is 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 system use the gas released from the water to produce substantially fresh water from the processed salt water.

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

The invention discloses a method for efficiently preparing chlorogenic acid by using a stevia rebaudiana extracting solution, which comprises the following steps: concentrating the stevia rebaudiana extracting solution, and adjusting the pH value of the concentrated solution to 5.0-6.5 to obtain a to-be-treated solution; pumping the to-be-treated liquid into a simulated moving bed chromatographic system for separation to obtain a chlorogenic acid phase and a stevioside phase; adjusting the pH value of the chlorogenic acid phase to 3.0-4.5, then sequentially carrying out nanofiltration membrane concentration and thermal concentration, and finally carrying out spray drying to obtain a chlorogenic acid product. According to the method, ethanol extraction, simulated moving bed separation and nanofiltration membrane desalination are combined, the yield of the prepared chlorogenic acid is high, the extraction efficiency is high, the technological process is simple, and the production cost is low. In addition, stevioside is also recycled in the process of preparing the chlorogenic acid.

The invention relates to the technical field of air flotation tanks, and discloses a dissolved air flotation separation device and an atmospheric and vacuum electro-desalting sewage pretreatment process, the dissolved air flotation separation device comprises a tank body, an oil outlet is arranged above the tank body, and a weir plate is arranged in the tank body. According to the device, a complete process from scum gathering to graded discharge is constructed through the scum gathering effect of the conical structure of the weir plate, the layered guide of the spiral flow deflector and the self-adaptive linkage of the detection paddle and the weir gate. The deflection angle of the detection paddle is in positive correlation with the viscosity and thickness of scum, the dynamic adjustment can be accurately converted into dynamic adjustment of the opening degree of the scum discharge port, the large opening degree is kept for rapid discharge when thin scum exists, the opening degree is reduced for screening dry scum when thick scum exists, the problem of scum accumulation or scum discharge with water is effectively avoided, and finally the high-purity dry scum discharge effect is achieved. The separation efficiency and the separation quality of the scum and the sewage are obviously improved.

The invention relates to the technical field of soil remediation and saline-alkali soil treatment, and discloses a nano-carbon-based slow-release saline-alkali soil conditioner and a gradient controlled release method thereof.The formula comprises a layered nano-carbon matrix, a humic acid intercalation compound, a pH response type cross-linking agent, a calcium ion modifier and a phosphate radical modifier; the method comprises the following steps: constructing a self-regulation repair system for synchronously optimizing salt reduction, nutrient supply and ion balance through a three-dimensional synergistic mechanism of pH response type sodium ion targeted adsorption, microbial activity driven nutrient controlled release and calcium-sodium dynamic replacement. A nano carbon-humic acid layered composite structure is used for synergic desalination and slow-release fertilizer supply, a Ca < 2 + >-PO4 < 3-> gradient ion replacement system is combined for synchronous salt reduction and structure fixation, a pH response coating technology is used for realizing accurate release of nutrients triggered by microbial activity, and a three-dimensional interpenetrating network and graded pores are used for guaranteeing the long-acting stability of the material. And finally, multiple repairing functions are integrated into a single material.

The invention provides a high-concentration brine treatment system, and belongs to the technical field of high-concentration brine treatment. Comprising a mounting mechanism, a spraying mechanism and a storage barrel, the mounting mechanism comprises a box body, a partition plate is arranged in the box body, a collection box is arranged on one side of the partition plate, a plurality of crystallization fillers are arranged in the collection box, a crystallization filter element is arranged in each crystallization filler, and a plurality of crystallization filter elements are arranged in the storage barrel. A partition plate is arranged in the box body, a material guiding plate is arranged above the partition plate, a spraying mechanism is arranged on the side face of the box body, a first material pumping pump is arranged on one side of the partition plate, a first feeding pipe is arranged on one side of the first material pumping pump, and the first feeding pipe penetrates through the partition plate and extends into the collecting box. According to the high-concentration salt water desalting device, high-concentration salt water can be fully treated, the desalting efficiency of the high-concentration salt water is improved, salt stains adhered to the inner wall of the material storage barrel can be cleaned, salt stain residues are reduced, and therefore residual salt crystals in the material storage barrel can be better treated.

The invention belongs to the technical field of oil field gathering and transportation systems, and particularly relates to a combined crude oil dehydration and desalination treatment device which comprises a shell, a pretreatment chamber is arranged at one end in the shell, an ultrasonic demulsification chamber is arranged on one side of the pretreatment chamber, and an electric dehydration settling chamber is arranged on one side of the ultrasonic demulsification chamber. Through the combined design of ultrasonic waves and an electric field, the efficiency and adaptability of crude oil dehydration and desalination are improved, oil-in-water and water-in-oil particles can be effectively opened through the mechanical oscillation effect generated by the ultrasonic generator in the ultrasonic demulsification chamber, free-state oil drops and water drops are formed, and the oil-in-water and water-in-oil particles can be effectively removed. An alternating-current electric field and a direct-current electric field which are respectively formed by the grid plate and the vertical electrode plate can be used for coalescing and settling water drops in oil under the actions of dipole coalescence, oscillation coalescence, electrophoresis coalescence and the like, and due to the synergistic action of the double electric fields, the quality of the dehydrated crude oil is improved, the volume fraction of water in the crude oil is reduced, the power consumption is reduced, and the stability of the electric fields is enhanced.

The invention provides a method for determining the washing stage number of a dedusting ash washing desalination system and electronic equipment, and the method comprises the steps: firstly determining the first alkali metal salt content of a filter cake generated by a first-stage washing desalination system, judging whether the first alkali metal salt content is smaller than or equal to the alkali metal salt content in a sintering ingredient, and if yes, determining the first-stage washing desalination system; determining the washing stage number of the dedusting ash multi-stage washing desalination system to be 1, if not, starting the ith-stage washing desalination system to enter a working state, determining the current alkali metal salt content of a filter cake generated by the ith-stage washing desalination system, and judging whether the current alkali metal salt content is smaller than or equal to the alkali metal salt content in the sintering ingredients or not; if yes, i corresponding to the ith-stage washing desalination system serves as the washing stage number of the dedusting multi-stage washing desalination system; and if not, assigning i + 1 to i. According to the method, the source of the fly ash does not need to be determined, the washing stage number of the fly ash washing desalination system can be accurately determined under the condition that the components of the fly ash are not determined, and favorable guidance is provided for production.