137results about How to "Reduce salt content" patented technology

The invention relates to the field of soil improvement, and discloses a saline-alkali soil conditioner and an application method thereof.The saline-alkali soil conditioner is prepared from, by weight, 10-30 parts of desulfurized gypsum, 5-20 parts of calcium chloride, 5-15 parts of ferrous sulfate, 5-15 parts of ammonium sulfate, 20-30 parts of organic materials, 20-30 parts of inorganic materials and 5-10 parts of microbial conditioner; the salt content and the pH value of the saline-alkali soil are reduced through desulfurized gypsum, calcium chloride, ferrous sulfate and ammonium sulfate; organic matter of saline-alkali soil is increased through organic materials, and the soil structure is improved; the water retention capacity and the nutrient supply capacity of the saline-alkali soil are improved through the inorganic materials, and the soil structure is further improved; solidified nutrients in the saline-alkali soil are activated through the microbial modifier, and the structure of the soil is improved; an ascending channel of soil underground salt is cut off through the isolation layer; therefore, the problem that the improvement efficiency is low due to the fact that salt and alkali return is prone to occurring in traditional improvement measures is solved.

The invention discloses a soil ecological restoration method suitable for plant transplantation and a plant transplantation method, and relates to the technical field of soil ecological restoration, and the method comprises the following specific implementation steps: S1, soil evaluation; s2, pollutant treatment; s3, soil improvement; s4, covering and protecting soil; in the step S1, the structure, texture, pH value, nutrient content, pollutant level and the like of the soil are comprehensively analyzed; the method comprises the following steps: testing the pH value and saline-alkali content of polluted soil needing planting, digging away soil with high saline-alkali content, and backfilling soil with low saline-alkali content; or an isolation system is arranged, materials such as lime and slag are used for isolating saline-alkali soil from alien soil, films and the like are transversely used for isolating surrounding saline-alkali soil, and the cost is low. According to the soil ecological restoration method suitable for transplanting the plants and the plant transplanting method, the water content and permeability of the soil are improved through layer-by-layer improvement of the soil, the physical properties of the soil are improved, and growth of the plants is facilitated.

A comprehensive regulation and control method suitable for improvement of a coastal mud flat severe saline-alkaline dry land comprises the steps that firstly, the area of a field needing to be improved and the soil salinity are measured, the use amount of acid volcanic rock debris and the use amount of high-fiber fermented wood chips are calculated, the application amount of the acid volcanic rock debris is 6-10 cubic meters / mu, and the use amount of the high-fiber fermented wood chips is 85-150 kg / mu; secondly, when the soil salinity is gt; when 0.8%, canal irrigation tube row is combined for concealed tube salt elimination, and the salt is reduced to about 0.4%; thirdly, uniformly scattering acidic volcanic rock debris and high-fiber fermented sawdust into the severe saline-alkali soil, then ploughing the field with the ploughing depth of 5-20 cm, uniformly mixing the field with soil, and then planting and cultivating dry farming crops to complete comprehensive regulation and control.

The invention discloses a carbon-based saline alkali soil remediation agent containing nano bamboo liquid and a preparation method thereof, and relates to the technical field of soil remediation agents, and the carbon-based saline alkali soil remediation agent comprises the following components in parts by weight: 9-13 parts of nano bamboo liquid, 25-35 parts of modified charcoal, 5-8 parts of micro-nano iron tailings, 3-6 parts of red mud and 12-15 parts of bacillus subtilis. According to the carbon-based saline-alkali soil remediation agent containing the nano bamboo liquid and the preparation method thereof, by adding the nano bamboo liquid, harmful substances such as heavy metal ions and organic pollutants in soil can be more effectively adsorbed, and the carbon-based saline-alkali soil remediation agent can also be used as a carrier or a stimulant of microorganisms to promote growth and reproduction of the soil microorganisms; meanwhile, the bamboo liquid is rich in various nutrient elements, the elements are more easily absorbed and utilized by soil after nanocrystallization, and necessary nutrients are provided for plant growth.

The invention relates to the technical field of saline-alkali soil improvement, and particularly discloses a preparation process and application of a multifunctional slow-release saline-alkali soil conditioner. The preparation process comprises the following steps: (1) uniformly mixing alginic acid powder, ardealite powder, carbon powder and water to form a wet material, then putting the wet material into a closed container, and carrying out heating and heat preservation treatment to obtain a precursor; and (2) standing the precursor at normal temperature, and then crushing the precursor to obtain the soil conditioner. The soil conditioner prepared by the process disclosed by the invention not only can more efficiently and quickly fix sodium, potassium, calcium and magnesium ions in soil, but also can reduce the content of carbonate ions, so that the salt content of the soil is reduced, and the alkalinity of the soil is reduced. In addition, the soil conditioner disclosed by the invention is also beneficial to relieving the alkali and salt returning phenomenon of the soil, and the use amount of the conditioner in the subsequent continuous soil improvement process is reduced.

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 invention discloses a method for removing fluorine from high-fluorine tungsten ore, which comprises the following steps of: S1, carrying out ball milling on the high-fluorine tungsten ore to enable the granularity of ore pulp to be less than 325 meshes, and enabling the obtained ore pulp to enter the next procedure; on one hand, fluorine is removed from the source, the fluorine is concentrated and enriched from the source, the fluorine is removed by adding the fluorine removal agent, the fluorine element is prevented from entering the main process to pollute the production process and the product, and compared with the fluorine removal in the production wastewater, the fluorine removal difficulty and the wastewater fluorine removal treatment cost are reduced; on the other hand, excessive sodium hydroxide after the soda boiling decomposition process is concentrated, enriched and recycled, and the defluorinated sodium hydroxide mother liquor is returned to the main process for pulp mixing and soda boiling for use, so that the use amount of new alkali in the soda decomposition process is greatly reduced, the production cost is saved, and the economic benefits of enterprises are increased; the method is simple to operate, cheap in raw materials, low in energy consumption and easy to industrialize.

The invention provides charcoal seed gel for saline-alkali soil vegetation restoration and a preparation method and application thereof, and belongs to the technical field of vegetation restoration. The biochar seed gel comprises water retention gel, effective nutritional ingredients and a structure maintenance agent, the water retention gel is polyacrylamide, the effective nutritional ingredients comprise a bacillus subtilis microbial agent, brassin, chitosan oligosaccharide, polyaspartic acid and a compound fertilizer, and the structure maintenance agent comprises biochar, clay, chitosan and saponin powder. The biochar seed gel forms a microenvironment on the surface of the soil, stress of a high-salt environment of the soil is reduced, and the gel is relatively high in water retention capacity, so that water is favorably maintained for growth of the seeds and seedlings, and a water shortage phenomenon caused by soil hardening is relieved.

According to the preparation method of the special biochar base fertilizer for saline-alkali soil improvement, the porous characteristic of biomass charcoal and the characteristic that wood vinegar can adjust the pH value of soil are utilized, the special biochar base fertilizer for saline-alkali soil improvement is prepared, and the preparation method is simple, low in cost and environmentally friendly; the obtained charcoal-based fertilizer can be used as a soil conditioner for improvement and recovery of large-area saline-alkali soil. When the biochar base fertilizer is used for saline-alkali soil cotton planting, it is found that the stem diameter, plant height and leaf chlorophyll content of cotton are remarkably increased, the pH, conductivity and volume weight of soil are remarkably reduced, and the porosity and saturated water-holding capacity of the soil are remarkably increased; the biochar-based fertilizer has the potential of adjusting the acid-base imbalance of the saline-alkali soil, improving the soil structure, increasing the organic matter content of the soil, improving the soil fertility and increasing the crop yield, and a sustainable, economical and effective solution can be provided for agricultural production.

The invention discloses bacillus velezensis with saline-alkaline tolerance and growth promotion functions, a bio-organic fertilizer and application of the bio-organic fertilizer, and relates to the technical field of agricultural microorganisms. The bacillus velezensis is preserved in the Guangdong Microbial Culture Collection Center on November 6, 2024, the preservation address is the 5th floor of the building 59, No.100 Courtyard, Xianlie Middle Road, Guangzhou, and the preservation number is GDMCC (China General Microbiological Culture Collection Center): 65428. The strain has strong saline-alkaline tolerance, can effectively survive in moderate and severe saline-alkaline environments, remarkably improves the germination rate of crops and the content of soluble sugar, proline and antioxidant enzyme, and reduces the content of malondialdehyde. The bio-organic fertilizer produced by using the strain can effectively improve crop yield and soil organic carbon, reduce pH and total salt content, and has a remarkable improvement effect on saline-alkali soil.

The invention discloses a method for reducing the discharge amount of salt-containing wastewater in a DMO synthesis process. The process method comprises the following steps: recovering nitric acid, supplementing total nitrogen of a system and reducing the salt content of the wastewater by additionally arranging a nitric acid reducer and utilizing gas-phase bubbling reverse contact, so that the salt-containing wastewater can be better decomposed and treated on the premise of not using a reduction catalyst, and the controllability and no harmfulness of the system are ensured; meanwhile, the nitric acid waste liquid treated by the nitric acid reducer is neutralized again by adopting an alkaline substance, so that the mass of the nitric acid finally discharged into a reclaimed water recycling system can be reduced to be below 43kg / h, and the concentration of the nitric acid is reduced to be below 0.1 wt%. The method not only greatly reduces the generation of salt-containing wastewater, but also reutilizes HNO3, and the methyl nitrite (MN) generated by the reaction can be used as a reaction raw material to return to a previous system for reaction, so that the consumption of the reaction raw material is reduced, and the system energy consumption is reduced while the wastewater discharge is reduced.

The invention discloses a saline-alkali soil improvement method based on a low-salt organic material. The method comprises six steps of saline-alkali soil detection, organic material selection, organic material pretreatment, organic material application, soil irrigation and soil pH value adjustment. According to the steps of organic material pretreatment and organic material application, it is ensured that the saline-alkali soil fertilization improvement effect is good, the method has the advantage of being good in improvement effect, and the problems that in the using process of an existing saline-alkali soil improvement method, in the using process, low-salt organic materials are inconvenient to efficiently improve the saline-alkali soil, and the soil quality is poor are solved. The problems that if low-salt organic materials cannot be fully utilized, the soil improvement effect may not be obvious, soil salinity cannot be effectively reduced, the soil structure cannot be effectively improved, supplement of the organic materials is lacked, the organic matter content of the soil is difficult to increase, and the fertility and the water and fertilizer retention capacity of the soil are affected are solved.

The invention discloses a biological conditioner for improving coastal salinized soil and promoting crop growth and application, and belongs to the technical field of soil improvement and crop cultivation. The biological conditioner is prepared from micromolecular organic carbon, polyglutamic acid, azotobacter chroococcum BNCC192292 and bacillus amyloliquefaciens, and the compounding ratio of the micromolecular organic carbon to the polyglutamic acid to the azotobacter chroococcum BNCC192292 to the bacillus amyloliquefaciens is 1: 1. The raw materials of the biological conditioner are reasonably compounded, and each raw material has specific functions: the micromolecular organic carbon and the polyglutamic acid not only do not increase the salt content of soil, but also can effectively increase the organic matter content and the total nitrogen content of the soil, and are organic carriers for good survival of effective bacteria; azotobacter chroococcum and bacillus amyloliquefaciens can increase the total nitrogen content of soil and increase the crop yield. The whole biological conditioner not only can remarkably reduce the salt content of soil, promote crop germination, improve the microbial activity of soil and increase the crop yield, but also has the advantages of being sufficient in raw materials, low in cost, easy to implement, green, environmentally friendly and the like.

The invention belongs to the technical field of synthesis of organic compounds, and particularly discloses a continuous production system and a production method of 1-(4-chlorphenyl)-3-pyrazole alcohol. The method is used for solving the problems of low production efficiency, high operation cost and danger and large wastewater discharge of a traditional intermittent hydrogen peroxide oxidation process. The production system comprises a raw material premixing tank, a conveying pump, an air source, an ejector, a reaction unit, a pH adjusting tank, a continuous filter, a temporary storage tank, a continuous dryer and an ion resin exchanger, the reaction unit comprises a plurality of static mixing tubular continuous flow reactors which are connected in series, static mixing elements are arranged in the static mixing tubular continuous flow reactors, and heat exchange jackets are arranged outside the static mixing tubular continuous flow reactors; heat exchange jackets or coil pipes are arranged on the outer side walls of the raw material premixing tank and the pH adjusting tank; and the ion resin exchanger is provided with a backwashing port. According to the invention, full-process continuous production is realized, green and safe preparation is realized, and the production efficiency, the product yield and the product purity are improved.

The invention discloses a method for electrochemically treating semi-coke wastewater based on a BDD electrode and application of the method, and the method comprises the following steps: S1, introducing the semi-coke wastewater into an oil removal section for oil removal to obtain semi-coke wastewater after crude separation; s2, introducing the semi-coke wastewater subjected to crude separation into an ammonia distillation dephenolization section, and sequentially carrying out deamination treatment and dephenolization treatment to obtain pretreated semi-coke wastewater; s3, the pretreated semi-coke wastewater is introduced into a BDD electrode anode chamber of an electrochemical oxidation section for electrolytic treatment, and electro-catalyzed semi-coke wastewater, acid liquor and alkali liquor are obtained; s4, alkalifying the semi-coke wastewater subjected to electro-catalysis by using alkali liquor, introducing the alkalified semi-coke wastewater into a biochemical section, and carrying out biochemical treatment to obtain wastewater meeting the discharge standard; the acid liquor and the alkali liquor in the step S3 are collected and used for acidification and alkalization treatment in the step S2 and the step S4. According to the method provided by the invention, the organic load of a biochemical system is reduced through electrochemical oxidation, and the BOD (Biochemical Oxygen Demand) in the wastewater is improved.

The invention discloses an improvement method for promoting growth of plants in salinized soil in Hexi region. The improvement method is realized by two steps of preparation of a soil conditioner and planting of salt-tolerant plants. The soil alkali-hydrolyzable nitrogen content of other plants except T2 is 1.2-2.5 times of the soil alkali-hydrolyzable nitrogen content of T0, the soil available phosphorus content of other plants except T5 and T6 is reduced by 12.9%-62.8%, and the reduction amplitude of the soil available phosphorus of T1 and T9 is maximum. The content of rapidly available potassium in soil is reduced by 28.8%-77.6% by planting plants, and the reduction amplitude of rapidly available potassium in T4 soil is maximum. After plants are planted, the salt content of plough layer soil is reduced by 27.8%-33.6%, and the reduction effect of T5 is the maximum; by means of planting of the salt-tolerant plants, the salt content of the soil of the 30-60 cm soil layer is reduced by 17.0%-37.3%, and T2 is reduced most obviously. The method has the advantages that obvious desalting effects can be realized during planting of the plants, the desalting rates of the plough layer soil can reach 13.3%-20.3%, and T5, T2, T3 and T1 are 20.3%, 16.2%, 15.5% and 15.1% respectively.

The invention belongs to the technical field of textile dyeing, and particularly relates to an ethanol salt-free dyeing and washing method of reactive dye. The method comprises the following steps: S1, putting the cotton fabric into an aqueous solution of an alkaline substance and a cationic modifier for padding; s2, putting the cotton fabric into dye liquor of reactive dye, heating to a certain temperature, and keeping the temperature for a period of time; s3, after dyeing for a period of time, adding a color fixing agent into the dye liquor, and keeping the same temperature for a period of time; s4, putting the cotton fabric subjected to color fixation into a solution containing a surfactant for washing, and then drying to obtain a finished product. On the premise of keeping the color fastness and the dyeing effect, salt-free dyeing can be realized, the water consumption in the textile dyeing and washing process is reduced, the influence on the environment is reduced, and the sustainable development of the textile industry is promoted.

The invention belongs to the field of soil improvement, and particularly relates to composite rice husk charcoal for improving soil and a carbon sequestration and sequestration method, rice husks are used for preparing rice husk charcoal, then the rice husk charcoal is mixed with calcium bicarbonate, and then calcination is performed to obtain calcified rice husk charcoal; and carrying out alkali treatment on the calcified rice husk charcoal to obtain the carbon sequestration and sink increase composite rice husk charcoal. The composite rice husk charcoal can effectively reduce the salt content and density of soil, increase the content of organic matters, effectively improve salinized soil, improve the survival rate and growth vigor of forest trees and promote the growth of young forests.

The invention discloses an urban sewage recovery method which comprises the following steps: a, urban sewage and a draw solution are respectively fed into a raw material liquid side and a draw solution side of a forward osmosis membrane assembly for forward osmosis treatment, and the draw solution comprises a scale inhibitor; and b, feeding the effluent on the draw liquid side after the forward osmosis treatment into a nanofiltration membrane assembly, and carrying out nanofiltration treatment to obtain produced water. According to the urban sewage recycling method, the forward osmosis membrane and nanofiltration treatment processes are adopted, the scale inhibitor is adopted as the draw solution, efficient concentration is conducted on the domestic sewage, organic matter removal is achieved, and high-quality produced water is obtained.

This utility model discloses a comprehensive treatment system for zinc-containing waste generated in viscose fiber production, belonging to the field of waste treatment in viscose fiber production. The system includes a reaction tank, filter press, pretreatment device, filter, ion exchange resin column, and acid bath preparation tank, ensuring a comprehensive treatment pathway for zinc-containing waste. This facilitates the mixing of highly acidic, high-salt zinc-containing wastewater with zinc-containing sludge. The strong acidity of the wastewater allows for the acid leaching of zinc sulfide and zinc hydroxide in the sludge, simultaneously obtaining a zinc sulfate solution and recovering sulfate to prepare sodium sulfate and sulfuric acid. This reduces the salinity of the wastewater, thereby decreasing the amount of reagents used in treating zinc-containing wastewater, mitigating scaling risks, and reducing the load on subsequent biochemical systems.

This invention discloses a method for preparing and applying algal hydrothermal char material. Algae are mixed with a reaction medium at a solid-liquid ratio of 50-100 g / L. After thorough stirring, the mixture is reacted under autogenous pressure and at a temperature of 130-150°C for 3-5 hours. After the reaction, the mixture is filtered, washed, dried, and ground to obtain the algal hydrothermal char material. The reaction medium is a mixed solution of ammonium phosphate and ammonia. The prepared algal hydrothermal char material can be used to improve the saline-alkali geochemical properties, reduce pH and salinity, and ultimately increase crop yield.

The invention relates to the technical field of chilli sauce production, in particular to a low-salt chilli sauce production process which comprises the following steps: conveying chilli into a first cleaning machine for first cleaning, then conveying the chilli passing through the first cleaning machine to a shaking device for shaking off cleaning liquid on the chilli skin, and then conveying the chilli to a second cleaning machine for second cleaning; the hot peppers are conveyed into a first cleaning machine to be cleaned for the first time, then conveyed into a second cleaning machine to be cleaned for the second time, the hot peppers subjected to the first cleaning and the second cleaning are cut into fragments, edible salt is added, the hot peppers mixed with the edible salt are transferred into a jar, edible wine is added into the jar at the same time, and then the hot peppers are stored for 6-8 months; in the first cleaning process, a sodium hypochlorite solution is used for cleaning, and the amount of available chlorine in the cleaning solution is controlled to be 20-25 mg / kg. The production method has the effect of producing the chilli sauce with relatively low salt content.

The present application belongs to the technical field of instant meat product processing, and discloses an instant ham and a preparation method. The method comprises low-salt pickling and semi-mature fermentation, high-temperature three-gradient fermentation after slicing and addition of probiotics, and the combination of vacuum temperature-changing fermentation ripening and bacteriostatic process, and processes the instant ham which is quickly fermented and matured, reduces the content of salt, inhibits the growth of rancidity and harmful bacteria, and is convenient to eat after opening the bag. The present application first proposes that the meat product after rapid fermentation is vacuum packaged and then subjected to special vacuum high-temperature fermentation ripening and bacteriostatic treatment at a high temperature of 49-52 DEG C. The process can not only significantly shorten the fermentation time to about 110-120 minutes, but also basically kill the non-sporulated vegetative microorganism cells in the vacuum-packaged ham, while allowing the probiotics to be retained to a certain extent and avoiding the pollution of microorganisms and other harmful substances thereafter. The "fast, low-salt, flavor, instant" ham product prepared by the present application technology cannot be realized by the existing ham fermentation technology.

The utility model provides a kind of high-salt waste liquid pretreatment system and incineration system.The pretreatment system includes sequentially connected feed unit, pretreatment unit, air supply unit and air induction unit;Feed unit includes auxiliary fuel lance and waste liquid lance;Pretreatment unit includes sequentially interconnected combustion chamber and cooling device of burner body;Auxiliary fuel lance, waste liquid lance are connected with burner body respectively;Air supply unit includes air blower, air blower is connected with burner body, combustion chamber respectively;The inlet of air induction unit is connected with the gas outlet of cooling device.The pretreatment system can be based on the coordinated cooperation of feed unit, air supply unit and other units, realize the pre-temperature control combustion of high-salt waste liquid, be conducive to the separation of organic matter and salt in high-salt waste liquid, remove salt in high-salt waste liquid, solve the plugging problem of incineration system, prolong the operation cycle of subsequent device.

The invention discloses a moderate-severe saline-alkali soil treatment method which comprises the following steps: soil prediction and pretreatment: predicting the depth of an impermeable interlayer, digging out heavy clay outside the soil, discharging water and standing, and determining the position of the impermeable interlayer through a measuring marker post; precisely measuring and scribing the treatment area, controlling the scribing interval size, and laying white powder marks; soil plowing and purification liquid application: deeply plowing a lineation area by a soil plowing machine, and breaking hardening of a plowing ground layer in combination with deep scarification; the water is mixed with the gypsum and the ardealite to obtain purified liquid, and the purified liquid is conveyed to the ploughing area; the saline-alkali soil conditioner has the beneficial effects that the saline-alkali soil quality can be remarkably improved, the salt content is reduced, the soil acidity and alkalinity are improved, and the soil fertility and crop growth conditions are improved; by introducing novel materials such as iron-based biochar, the heavy metal adsorption capacity and pollution remediation capacity of the soil are further enhanced, and powerful support is provided for sustainable utilization of the saline-alkali soil.

This utility model discloses a saline soil roadbed filling device, including a base, with flattening wheels symmetrically arranged at the bottom of the base, and a filling box fixedly installed at the top of the base. A storage box is installed on one side of the filling box at the top of the base, and an addition pipe is connected through to one side of the top of the filling box. The device also includes a filling frame connected through to the lower side of one side of the filling box, and the filling frame is connected through to the base. An electric valve is installed inside the lower part of the filling frame, and a fixing frame is fixedly installed on the top of the filling box. A servo motor is fixedly installed on the top of the fixing frame, and a rotating shaft is fixedly installed at the output end of the servo motor, and the rotating shaft is rotatably connected to the filling box. This allows for simultaneous filling and spraying of salt-inhibiting agents during roadbed filling construction on saline-alkali land, reducing the salt content in the soil, improving construction efficiency, and ensuring uniform spraying while avoiding excessive spraying.

The invention discloses a saline-alkali land treatment device and a treatment method thereof, which relate to the field of saline-alkali land treatment. The device comprises an outer barrel body and an inner barrel body arranged in the middle of the outer barrel body, wherein the outer barrel body is provided with an outer barrel hole, and the inner barrel body comprises an inner barrel wall, wherein the inner barrel wall is provided with an inner barrel hole, and film covering seams are provided inside two side surfaces of the inner barrel wall provided with the inner barrel hole; a control component is arranged at the top of the inner barrel body and in the equipment cavity, wherein the control component comprises an upper bracket arranged at the top of the inner barrel body, a fixing seat arranged on the surface of the upper bracket, an upper winding roller arranged on the fixing seat, a lower rotating seat arranged in the equipment cavity, and a lower winding roller arranged on the lower rotating seat; the saline-alkali land treatment device, by arranging the control component, can rotate the winding roller when a water-permeable membrane is blocked by salt due to long-term use, thereby rolling up the blocked water-permeable membrane and replacing the unblocked water-permeable membrane in the original position, thereby increasing the use time of the device and reducing the number of maintenance times.

The invention relates to the technical field of wastewater treatment equipment, in particular to an evaporation system with a refrigerating loop, which comprises an evaporation separator, a crystallizer, a dryer, a refrigerating loop, a conical circular truncated cone, a fixing frame, an electromagnetic telescopic rod, an extension spring and a liquid sealing plate, a high-salinity wastewater concentrated solution which just reaches a saturated state quickly flows downwards into the crystallizer along the surface of the conical circular truncated cone, so that a large amount of crystallized salt is prevented from being crystallized and separated out in the evaporation separator and is immediately mixed with the concentrated solution to be adhered to the inner wall of the evaporation separator, and adverse effects on subsequent high-salinity wastewater treatment are avoided; the high-salinity wastewater is cooled in the crystallizer through the refrigerating loop, so that the technical effect of rapidly and greatly reducing the salt content of the high-salinity wastewater concentrated solution is realized.

The present application relates to supercritical water reaction technical field, provide a kind of organic waste liquid inorganic reaction and desalination integration device, inner body is arranged in the inside of outer body, and first gap is left between inner body and outer body;Particle discharge device is connected with inner body and the outside of body;The inside of inner body is provided with outer water pipe and inner water pipe, and length is less than the length of inner body, second gap is left between outer water pipe and inner body, third gap is left between inner water pipe and outer water pipe, and the bottom of inner water pipe and outer water pipe is provided with corrosion-resistant plate;Inner body is provided with reactant inlet and reactant outlet;Outer body is provided with cooling water inlet and cooling water outlet.The present application can avoid salt precipitation to plug and corrode reactor and pipeline and equipment in rear end, reduce reactor cleaning salt and maintenance frequency, prolong the service life of main equipment to ensure the continuous and stable operation of supercritical water reactor, and then increase the processing efficiency of organic waste liquid.

The invention provides a saline-alkali soil improving material and a preparation method and application thereof, the saline-alkali soil improving material comprises modified fly ash and a calcium agent, the content of the calcium agent is 1-20wt% of that of the saline-alkali soil improving material, and the calcium agent comprises gypsum, calcined gypsum, desulfurized gypsum, phosphogypsum, fluorgypsum, carbide slag, quick lime or slaked lime. The preparation method comprises the following steps: sequentially carrying out screening and ultrasonic modification on fly ash, mixing with a calcium agent, and curing, so as to obtain the saline-alkali soil improvement material which is applied to the improvement of mud flat saline-alkali soil. The saline-alkali soil improving material provided by the invention is simple in component, solid waste can be recycled, the fly ash is modified, heavy metal elements in the fly ash are removed, chemical agents are not contained, and secondary pollution is avoided; the soil conditioner is applied to the improvement of mudflat saline-alkali soil, effectively reduces the pH value and salt content of the saline-alkali soil, improves the organic matter content and soil porosity, and has a good saline-alkali soil improvement effect; the preparation method is simple in steps and easy to prepare.