20results about How to "Reduce salt" patented technology

The invention provides a high-salinity high-tidal-flat mangrove forest ecological restoration method. The high-salinity high-tidal-flat mangrove forest ecological restoration method comprises the following steps of S1, soil improvement, S2, seedling cultivation, S3, seedling planting, S4, seedling reseeding, S5, bank protection device arrangement and S6, pest control. The soil conditioner is used for improving the soil structure and reducing the soil salinity. Salt-resistant domestication is performed on the seedlings by gradually improving the salinity of irrigation water, so that the salt resistance of the seedlings is improved. Organic fertilizer, ferriporphyrin, abscisic acid and brassinolide are used for providing nutrients for seedlings, osmotic equilibrium in plants is adjusted, opening and closing of air holes are adjusted, plasticity of cell walls is adjusted, and therefore the salt resistance of the plants is enhanced. According to the method, the roots of seedlings are inoculated with the halorhodobryum terbach and the proteobacteria, the halorhodobryum terbach and the proteobacteria terbach form a symbiotic relationship with the roots of plants, a microbial community is formed, and the absorption efficiency of the plants to nutrients in soil is According to the method, the planting survival rate and the plant growth rate are improved through the multi-way overall synergistic effect, and then the biological diversity is improved.

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 relates to the field of soil improvement, and particularly discloses a soil improvement method for coastal saline-alkali soil. According to the method, a physical method and a biological method are comprehensively utilized for comprehensive treatment of the saline-alkali soil, the large drainage ditch communicated with the surrounding river channel is dug for discharging salt into the river channel, the soil tank and the salt drainage ditch are dug, the plastic permeable blind pipe wrapped with the non-woven fabric is placed in the salt drainage ditch, the salt drainage ditch is backfilled with gravel, and the soil tank is backfilled with planting soil; organic compound fertilizer is evenly sown on the surface of the improved area, after long-time natural rainfall and manual watering, flowing water dissolves salt and alkaline substances in planting soil to form saline-alkaline water, and the saline-alkaline water flows into the plastic permeable blind pipe through the gravel layer and is finally discharged into the large drainage ditch to flow into the river channel. Salt and alkaline substances in the soil above the salt elimination ditch are effectively reduced, the wet soil promotes rapid decomposition of organic fertilizer and effective removal of salt, the improvement time of the saline-alkali soil is effectively shortened, and a good improvement effect can be maintained for a long time.

The invention relates to a method for relieving facility cultivation soil secondary salinization and improving lettuce yield, which comprises the following steps: applying a soil conditioner to planting soil, sowing lettuce, and irrigating with hydrogen-rich water until the lettuce is harvested; the soil conditioner comprises a combination of iron modified biochar and humic acid. According to the method, the combination of the iron modified charcoal and the humic acid is adopted as the soil conditioner, and meanwhile, the hydrogen-rich water is adopted for irrigation, so that the salinity of the facility cultivation soil can be quickly and effectively reduced, the soil acidification is slowed down, the yield of lettuce is promoted to be increased, and an economic, environment-friendly and easy-to-popularize mode is provided for improving the conservation of the facility cultivation soil.

The invention provides an improvement method of soda saline-alkali soil, and belongs to the technical field of soil improvement. The method comprises the following steps: crushing corn straws, spreading the crushed corn straws on the surface of soda saline-alkali soil according to the addition amount of 15-20 tons / hectare, ploughing, harrowing, ridging, sowing jute seeds, fertilizing, and burying a drip irrigation belt in the middle of a ridge at a position 3-5 cm away from the earth surface. According to the method, the straw returning technology is matched with jute planting, the soil salinity and alkalinity of the soda saline-alkali soil are remarkably reduced, the soil fertility is improved, the soil environment is improved, and the yield and quality of jute are remarkably improved.

The invention belongs to the field of organic fertilizer and microbial fertilizer manufacturing, and particularly relates to a saline-alkali soil conditioner and application thereof in the technical field of saline-alkali soil conditioning. The invention provides a saline-alkali soil conditioner. The saline-alkali soil conditioner comprises the following components: a nitrogen fertilizer, a phosphate fertilizer and a synergist. Urea and ammonium sulfate in nitrogen fertilizer of the saline-alkali soil conditioner cooperate with acidizing rhizosphere to promote rhizosphere salinity reduction, different types of phosphatic fertilizers are mixed to improve the fertilizer efficiency of phosphatic fertilizers in salinized soil, and a carbon source and a synergist are matched to strengthen the microbial function of the soil. When the soil conditioner is applied, the activity of soil microorganisms can be stimulated, the soil acidity and alkalinity can be improved, and nutrient turnover can be promoted. When the conditioner disclosed by the invention is applied to the salinized soil, the contents of nitrogen, phosphorus and potassium at the overground part of crops can be increased, and the growth of the crops is promoted.

This invention provides a composite biosynergist, its preparation method, and its application. The composite biosynergist is composed of polyglutamic acid, humic acid, fucoidan oligosaccharide, and plant polyphenols. The synergistic effect of the active substances polyglutamic acid γ-PGA, humic acid HA, fucoidan oligosaccharide AOS, and plant polyphenol PP in the composite biosynergist is essentially manifested in microscopic-scale functional complementarity and mechanism closed-loop. It achieves four functional pathways: blocking salt toxicity through chelate channels, ensuring nutrient supply through complexation channels, enhancing nutrient absorption through root-promoting channels, and resisting stress damage through stress-resistant channels. Ultimately, it achieves the macroscopic effect of "improved soil physicochemical properties—enhanced root function—increased crop stress resistance and yield." Its core advantage lies in overcoming the functional limitations of single components and solving the industry pain points of "difficult-to-eliminate salt damage, easy nutrient loss, and unstable improvement effect" in saline-alkali land improvement through molecular-level synergistic effects.

The application belongs to the technical field of soil improvement, and particularly relates to a method for autumn and winter pressing and early spring plowing to increase soil moisture and control salt in saline-alkali land. In the winter soil freezing process of the water-deficient saline-alkali area, a large amount of water migrates from deep soil or underground water to the surface layer. After the soil freezing layer melts in the spring, the water content of the surface soil is significantly increased. The soil water and salt dynamic law in the soil freezing and thawing process is used to press the land by using a presser before the soil freezes in the winter, to improve the tightness of the soil and increase the proportion of soil pores of the rising water. The soil freezing process in the winter is used to promote the migration of deep soil water to the surface layer. In the early spring of the next year, a large plowing machine is used to plow the land deeply in the soil freezing layer melting and returning to the slurry period, to keep the high water content and low salt content of the plough layer. Combined with the micro-sowing of spring crops such as sorghum, oil sunflower and oat, the normal emergence and growth of the spring crops are ensured.

The utility model relates to the technical field of tall fescue grass lawn planting, and discloses a tall fescue grass lawn planting system suitable for saline-alkaline soil, which comprises a seeding device, an irrigation device and a top cover, the seeding device is used for planting, the irrigation device is connected with the top cover through a pipeline for irrigation, and the top cover is used for reducing the salinity of irrigation water; the salt removing mechanism is arranged in the top cover, the salt removing mechanism comprises a stirring assembly and a removing assembly, and the stirring assembly and the removing assembly are matched to treat the irrigation water body. According to the utility model, the salt cleaning mechanism is used for performing chemical salt reduction on the irrigation water body of the saline-alkali soil, and the stirring plate can rotate under reciprocating vertical displacement to accelerate the fusion of a chemical agent and the water body, so that the internal salt analysis is accelerated, and the salt content of the water body is reduced; and the separated crystals are automatically discharged under the cooperative action of the removing assembly and the stirring assembly, and manual salvage of the salt crystals is not needed, so that the labor intensity is reduced, and the cleaning efficiency is improved.

The utility model relates to saline and alkaline land drainage technical field discloses a kind of saline and alkaline land drainage salt discharge buried pipe laying structure, including water-collecting well, the shallow main buried pipe is fixedly connected in the water-collecting well top left side, the deep main buried pipe is fixedly connected in the water-collecting well bottom left side, the shallow main buried pipe front side is fixedly connected with shallow branch buried pipe one, the shallow main buried pipe rear side is fixedly connected with shallow branch buried pipe two, the deep main buried pipe rear side is fixedly connected with deep branch buried pipe two, the deep main buried pipe front side is fixedly connected with deep branch buried pipe one, cleaning mechanism is provided in the deep branch buried pipe one inside.The utility model, after external soil water is filtered by filter layer and is filtered, flows through branch buried pipe and enters main buried pipe, realizes to make tillage layer salt drop, guarantees the purpose of crop root system environment, accumulated water is finally collected to water-collecting well, water in water-collecting well is discharged to external water body by drainage pump, and the balanced drainage of device is realized.

This invention discloses a high-humicity microbial fertilizer and its preparation method, belonging to the field of microbial fertilizer technology. The method involves adding a mixed carrier, a protective agent, and fermentation broth to a stirred tank in a specific ratio, followed by shaking and adsorption, filtration, and drying with forced air until the moisture content of the absorbent resin powder reaches 30-35%. The powder is then continuously granulated using a granulator and sieved to obtain microbial agent granules with a particle size of 2-5 mm. The microbial agent granules and sodium humate are mixed at a mass ratio of 1-2:10 to obtain the high-humicity microbial fertilizer. The aggregated short fibers, under the adhesive and physical entanglement effects of the protective agent, increase the internal space of the microbial agent granules while improving structural stability, providing a stable growth and reproduction environment for microorganisms, and improving the long-term storage of the fertilizer and the survival rate of microorganisms after application. The enlarged microbial agent granules provide support, increasing soil looseness and providing a good respiratory environment for crop roots.

The invention relates to the technical field of sewage treatment and resource utilization, in particular to a method for treating high-calcium coalbed methane produced water and recycling lithium and strontium resources, which comprises the following steps: respectively adding sodium sulfate, hydrogen peroxide, a demulsifier and a flocculant into coalbed methane produced water, respectively reacting, and removing solid impurities through solid-liquid separation after the reaction is finished; effluent is subjected to nanofiltration A treatment, and nanofiltration A produced water and nanofiltration A concentrated water are treated respectively; a treatment method of nanofiltration A produced water comprises the steps of electrolytic oxidation A, high-pressure reverse osmosis and adsorption and desorption; the treatment method of the concentrated water of the nanofiltration A comprises the following steps: carrying out thermogravimetric precipitation, electrolytic oxidation B, resin adsorption and nanofiltration B, respectively carrying out evaporative crystallization on the produced water of the nanofiltration B and the concentrated water of the nanofiltration B to respectively obtain NaCl and strontium chloride, and discharging or recycling condensed water. According to the treatment process method disclosed by the invention, up-to-standard discharge or reuse of the produced water is realized, and byproducts such as calcium, strontium and lithium are separated from the water.

The invention provides a cyclic utilization method and device of acid-containing washing water, and the method comprises the following steps: carrying out reverse osmosis on the acid-containing washing water to obtain a filtrate and a trapped fluid; wherein the trapped fluid comprises chloride ions and silicate ions trapped in the reverse osmosis process and metal ions on the surface of strip steel; the acid-containing washing water comprises an acid mist washing solution and / or rinsing water after strip steel pickling; absorbing furnace gas by using the trapped fluid to obtain regenerated acid; the furnace gas comprises HCl gas; and treating the filtrate through a cation bed, an anion bed and a mixed bed in sequence to obtain desalted water. In the cyclic utilization method of the acid-containing washing water, the trapped fluid absorbs the furnace gas to obtain the regenerated acid, so that the salt substances and the free acid are utilized as components of the regenerated acid, the loss rate of acid circulation of acid pickling and acid regeneration is reduced, and hydrochloric acid is regenerated during acid regeneration by recycling chloride ions. The filtrate is treated by the cation bed, the anion bed and the mixed bed to obtain desalted water, so that the preparation process of the desalted water is shortened, and the filtrate is recycled.

The cleaning production line comprises a first cleaning pool, a second cleaning pool and a third cleaning pool, a cleaning conveying belt is arranged in the third cleaning pool, a plurality of U-shaped conveying supports are arranged on the cleaning conveying belt, and the conveying supports are evenly distributed on the conveying path of the cleaning conveying belt; the cleaning production line for pickled Chinese cabbage production is used for continuous and multiple times of bubble cleaning after pickled Chinese cabbages are pickled, the pickled Chinese cabbages are continuously and repeatedly cleaned through the multiple cleaning pools, the cleaning efficiency is improved, and the cleaning efficiency is improved. A cleaning conveyor belt in the third cleaning pool is used for fixing the heads of the pickled Chinese cabbages, a bubble plate blows bubbles from the lower portions of the pickled Chinese cabbages to clean the pickled Chinese cabbages, the bubbles can disperse leaves of the pickled Chinese cabbages and fully clean the head portions, connected with the leaves, of the pickled Chinese cabbages, and silt, salt and other harmful substances mixed in the stacked portions of the head and the leaves of the pickled Chinese cabbages are reduced.

The utility model discloses a pesticide wastewater pretreatment device which comprises a raw water storage tank, a heat exchanger, an evaporator and an advanced oxidation reactor, raw water is stored in the raw water storage tank through an input port of the raw water storage tank, the raw water storage tank is connected with the heat exchanger and connected with the evaporator through the heat exchanger, and a steam port is formed in the upper end of the evaporator. The steam port is connected with the heat exchanger again and connected with the advanced oxidation reactor through the heat exchanger, and the heat exchanger is externally connected with cold water through a cooling water pipe. According to the device, the pesticide wastewater is pre-treated in a targeted manner, the temperature of the pesticide wastewater in the raw water storage tank is raised, and the pesticide wastewater is evaporated in the evaporator to obtain salty mud, so that salt in the wastewater is filtered, the salt content of the pesticide wastewater is reduced, the toxicity of harmful substances is reduced, and the operation stability of subsequent biological treatment is improved; finally, the pesticide wastewater treatment is promoted to reach the standard. Meanwhile, the heat exchanger is used for increasing the energy utilization efficiency and the working efficiency of the device.

The invention provides a saline-alkali land drainage ditch plant slope fixing method, which belongs to the technical field of plant slope fixing, and comprises the following steps: S1, constructing ridges and ditches: in spring or autumn, digging ridges and ditches on the slope surface of the drainage ditch, 45-55 cm above the highest water level, and building a ridge every 30-40 m; S2, irrigating and pressurizing salt water: before planting, irrigating and pressurizing salt water into the ridges and ditches; S3, selecting plant varieties: selecting tamarisk and weeping willow as planting seedlings; S4, digging planting holes: when the ridges and ditches are dry and the soil is not too sticky to the shovel, digging planting holes; S5, transplanting: transplanting weeping willows and tamarisks alternately and at intervals into the planting holes dug in step S4; the time interval from seedling removal to planting of tamarisks and weeping willows is ≤3 days; S6, irrigating seedling protection water; irrigating seedling protection water in time after transplanting, and irrigating thoroughly; S7, management and maintenance; the invention adopts the method of planting weeping willows and tamarisks on the slope of the drainage ditch, and using the plant root system to protect the slope of the drainage ditch, and the slope protection effect is remarkable.

The invention discloses a double-effect strain for reducing salt and mineralizing as well as a culture method and application thereof, the double-effect strain for reducing salt and mineralizing is classified and named as Halomonas sulfidaeresis. ZN2 #, is preserved in the China General Microbiological Culture Collection Center (CGMCC), and has the preservation number of CGMCC No.32033. The invention also discloses a method for culturing the double-effect strain for reducing salt and mineralizing. The optimal culture conditions are as follows: the culture temperature is 30 DEG C, the culture rotating speed is 200 r / min, and the culture time is 48 hours. The strain has the double-effect performance of mineralization and salt reduction at the same time, and the salt content in the soil can be reduced while the soil is solidified. The strain is combined with a microbe induced calcium carbonate precipitation technology, the salt content in saline soil can be reduced while the soil body strength is improved, and the strain is suitable for improvement and modification of saline-alkali soil. The strain avoids the influence of exogenous strains on the soil environment while repairing and improving the saline-alkali soil, and realizes the sustainability of saline-alkali soil improvement.

The invention discloses a clean production method of corn starch in the starch sugar industry, and belongs to the technical field of corn deep processing, energy conservation and emission reduction. The method comprises the following steps: sucking and collecting volatile sulfur dioxide waste gas at exposed parts of materials in a starch workshop by adopting a suction hood, then mixing with clear water to prepare a sulfurous acid solution, introducing the sulfurous acid solution into a corn soaking system by adopting a sulfurous acid solution spraying continuous countercurrent dynamic soaking process, and washing starch milk by using starch sugar evaporation condensate water. According to the clean production method, soluble protein, salt and resin regeneration acid and alkali consumption and wastewater discharge in the starch milk can be reduced, the acid and alkali consumption can be reduced by 30% or above, the product yield can be increased by 5% or above, and the discharge amount of ion exchange water and sewage can be reduced by 35% or above.

The application discloses a growth promoter for improving the seedling emergence rate of cotton in saline-alkali soil, and the salt resistance of cotton seed germination is improved by using rapeseed euricin regulator and GABA permeation regulator; the stable agent formed by strong acid materials such as urea phosphate can quickly reduce the pH value and saline-alkali of the soil tillage layer; meanwhile, the urea phosphate, amino acid, fulvic acid and auxiliary materials provide certain nutrient substances for seedling crops; the cooperation among raw materials fundamentally improves the salt tolerance of cotton seedling, not only improves the seedling emergence rate of cotton, but also can quickly reduce the pH value of saline-alkali soil in Xinjiang after dissolving water, improves the chemical composition of soil, reduces the salt content and alkalinity of soil, creates a good environment for crop growth, and after application, the soil salt content is below 20 g / kg, the pH value is below 7.5, the seedling emergence rate of cotton is above 70%, which is more than 30% higher than that of the control, and the yield of cotton in saline-alkali soil in Xinjiang is significantly increased, thereby providing technical support for rural revitalization.

This invention discloses a vacuum distillation apparatus and method for isophthaloyl / terephthaloyl chloride, belonging to the field of chemical separation technology. The distillation apparatus and process provided by this invention prevent terephthaloyl chloride from entering the vacuum system, thus protecting the vacuum system: due to the stepped cooling of the first-stage and second-stage cup coolers, the terephthaloyl chloride is fully condensed and recovered before entering the vacuum system. The Roots pump and ejector pump in the vacuum system only handle non-condensable gases, avoiding rotor jamming caused by material condensation and accumulation.