34results about How to "Reduce salt content" patented technology

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 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 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 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 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.

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 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.

This invention belongs to the field of ketoxime synthesis technology and provides a method for synthesizing 3-pentanone oxime. The method uses 3-pentanone, hydrogen peroxide, and ammonia as raw materials, adds a catalyst, and reacts in a closed system. After the reaction, the mixture is filtered and distilled under reduced pressure to obtain 3-pentanone oxime. The catalyst is a fluorine-modified Ti-MOR molecular sieve, obtained by reacting the Ti-MOR molecular sieve with an NH4F-alcohol solution. The method provided by this invention features high yield, high purity, and low waste, with a single-pass yield ≥96% and purity ≥99.0%. The catalyst can be recycled up to 6 times without significant activity decline. The entire process involves no organic solvent discharge and low salt content in the wastewater, meeting the requirements of green production.

This utility model provides a wind turbine tower cooling device, aiming to solve the problem that existing offshore wind turbine tower cooling devices lack dehumidification and desalination filtration of sea air. It includes a filter pipe, a multi-stage filtration system, a cooling fan, a support frame, and a water storage pipe. The filter pipe contains the multi-stage filtration system and is fixedly mounted on the support frame. A cooling fan is installed on the air outlet pipe at the top of the filter pipe. The water storage pipe is connected to the bottom of the filter pipe through multiple drain pipes, and an electric heating wire is wound around the outside of the water storage pipe. The multi-stage filtration system includes a metal filter, filter cotton, and a cyclone filter. The metal filter, filter cotton, and cyclone filter are arranged sequentially. The positions of the air outlet pipe and the cyclone filter correspond to each other. This device can effectively dehumidify and desalinate sea air, preventing water vapor and salt from adversely affecting the equipment during heat dissipation.

The invention relates to a kitchen garbage treatment method which comprises the following steps: S1, collecting general kitchen garbage, and performing three-phase separation after pretreatment to obtain slurry residue a, sewage and waste oil; s2, soybean curb residue waste and bread waste are collected, after pretreatment, wheat skin worm larvae are added and cultured, then worm and material separation is conducted, and pulp residue b, wheat skin worm pupae and wheat skin worm adults are obtained; s3, blending the slurry residue a, the slurry residue b and modified diatomite, adding hermetia illucens larvae and dry animal waste, culturing, and then separating the larvae from the materials to obtain a fertilizer, hermetia illucens pupae and hermetia illucens adults; s4, blending the wheat skin worm pupae and the wheat skin worm adults with the hermetia illucens pupae and the hermetia illucens adults, adding soybean curb residue waste for filling, and drying to obtain the protein feed. The kitchen garbage treatment method provided by the invention can simplify the conventional treatment process, reduce the cost, obtain the fertilizer and the protein feed at the same time, and improve the economic benefits of enterprises.

The present invention discloses a salt-avoiding cultivation method for wheat in saline-alkali land, which comprises the following steps: (1) before sowing, irrigating with fresh water to drain salt; (2) digging trenches with a depth of 30 to 50 cm in both directions, and applying a soil water retaining agent in the trenches; (3) applying fermented fertilizer at a depth of 10 to 15 cm; (4) applying a root strengthening agent together with the seeds during sowing. The method of the present invention makes the wheat seedlings strong and uniform, the root system has high vitality, the ear formation rate is high, and the thousand-grain weight and yield of wheat are effectively improved.

The invention relates to the field of chemical engineering, and particularly discloses a preparation method of a bifunctional catalyst, which sequentially comprises the following steps: mixing alkali metal salt and activated aluminum oxide, and roasting to obtain a solid super alkali carrier; the preparation method comprises the following steps: adding a solid super alkali carrier, a Pd precursor and a Cu precursor into deionized water, carrying out ultrasonic mixing, carrying out vacuum drying, roasting in an inert gas atmosphere, carrying out a thermal insulation reduction reaction in an H2 atmosphere, washing, and carrying out vacuum drying to obtain the bifunctional catalyst. The invention further provides application of the bifunctional catalyst, the bifunctional catalyst is used for preparing the thiophene compound through a one-pot method, the one-pot method is simpler and more convenient to operate, meanwhile, environmental pollution is reduced, and the production cost is further reduced.

The invention discloses a salt-light alkali-reducing cultivation method for cotton in saline-alkali soil, and relates to the technical field of cotton planting. Comprising the following steps: deeply ploughing a cotton field, applying a base fertilizer, and irrigating to make entropy to obtain a to-be-sown cotton field; cotton sowing is carried out by adopting a direct-seeding plastic film mulching method and a machine-harvested cotton planting mode, the sowing depth is controlled to be 2.5-3.5 cm, the soil covering width is 5-7 cm, the soil covering thickness is 0.5-1 cm, the one-grain rate is larger than or equal to 95%, and the hole rate is smaller than or equal to 3%; after-sowing management is conducted in the cotton seedling stage, timely intertillage is conducted, and meanwhile leaf fertilizer is sprayed according to the cotton cotyledon stage to the two-leaf stage, the 3-4-leaf stage and the 4-leaf stage; performing water and fertilizer management in a cotton bud stage, performing intertillage, and performing foliage dressing at the same time; in the cotton flowering and boll-forming period, water dripping fertilizer is conducted according to the entropy condition, topping is conducted in good time, meanwhile, fertilizer is applied to regulate and control the plant type, and fertilizer is applied according to the premature senility trend and the snooze growth vigor; disease, pest and weed control is carried out in the sowing period. The cultivation method is suitable for saline-alkaline cotton fields in Xinjiang and is an effective means for increasing the cotton yield and improving soil conditions.

The present invention provides a saline-alkali land drainage pipe and a preparation method and application thereof, belonging to the technical field of soil remediation. The saline-alkali land drainage pipe provided by the present invention is made of phosphogypsum and oyster shells, and the weight ratio of the phosphogypsum and oyster shells is (1‑3): (1‑4). The drainage pipe provided by the present invention not only solves the problem that traditional salt discharge pipes are prone to aging and breaking, and the salt discharge port is easily blocked by water, but also improves the drainage efficiency, thereby improving the soil structure, improving soil fertility, and being beneficial to plant growth, and the cost is low, which is conducive to large-scale application. In addition, the drainage pipe provided by the present invention can improve the air permeability and water retention of the soil, while reducing the salt content of the soil, which is beneficial to plant growth, thereby realizing effective remediation of saline-alkali land. The drainage pipe material of the present invention is widely available, low in price, and has excellent performance, and can replace the existing high-priced and highly polluting drainage pipe materials.

The invention provides Pseudomonas kirscheri WF3, a microbial fertilizer for saline-alkali soil and a preparation method and application of the microbial fertilizer, and belongs to the technical field of biological composting. The invention provides a preparation method of a microbial fertilizer for saline-alkali soil. The preparation method comprises the following steps: (1) preparing a fertilizer carrier comprising a decomposed organic fertilizer, humic acid, attapulgite powder and polyglutamic acid; and (2) inoculating pseudomonas kirschner WF3 into the fertilizer carrier, and carrying out sealed fermentation to obtain the microbial fertilizer for saline-alkali soil. Pseudomonas kirschner WF3 which has exopolysaccharide and organic acid production capacity and can survive in a strong saline-alkaline environment is adopted for fermentation of a fertilizer carrier, the prepared microbial organic fertilizer can effectively improve the content of organic carbon, total nitrogen and water-stable large aggregates (larger than 2.5 mm) in soil, increase the yield of corn, reduce the pH and total salt content of the soil, and improve the yield of corn. The improvement effect on the saline-alkali soil is obvious.

The invention provides a remediation method for soil in a semi-arid region, and belongs to the technical field of soil remediation. According to the remediation method for the soil in the semi-arid region, the physical structure of the soil is optimized through deep ploughing and rainwater collection, a straw matrix, the chemical environment is regulated and controlled through a composite conditioner, the biological function is enhanced through mixed sowing of local pioneer plants and a composite microbial agent, and a multi-dimensional synergistic remediation system is formed; local pioneer plants are selected, so that the invasion risk of alien species is avoided; natural materials such as degradable starch mulching film, decomposed straw and organic fertilizer are adopted and matched with the compound microbial agent, no chemical residue exists, local microbial community optimization can be promoted, and the stability of a soil ecological system can be improved; straw, cattle and sheep manure and other agricultural wastes are used for preparing a matrix and an organic fertilizer, and the raw material cost is reduced; the design of the rainwater collecting ditches is combined with natural rainwater resources, the manual irrigation cost is reduced, the soil ecosystem can be autonomously kept stable after remediation is completed, and secondary degradation is effectively avoided.

The invention discloses an environment-friendly boiler energy-saving scale inhibitor as well as a preparation method and application thereof. The environment-friendly energy-saving boiler scale inhibitor is prepared from ethanolamine, cyclohexylamine, sodium sarcosinate, sodium cumenesulfonate, sulfonated dioctyl succinate and sodium hydroxide. The use method is simple, the boiler water conductivity can be reduced, the pollution discharge rate is reduced, the steam quality is effectively improved, the salt deposition phenomenon is avoided, a steam turbine can operate more safely, stably and efficiently for a long period, meanwhile, the cost can be greatly saved, and the preparation method is simple. Therefore, the environment-friendly boiler energy-saving scale inhibitor has a wide application prospect.

The invention provides an efficient composite sludge dewatering conditioner and a preparation and use method thereof, and belongs to the technical field of sludge treatment agents, the sludge dewatering conditioner comprises poly dimethyl diallyl ammonium chloride, a polyferric sulfate solution, sodium percarbonate particles and slag porous particles; the polymeric ferric sulfate solution is a liquid with the effective iron content of 6-16%; the poly dimethyl diallyl ammonium chloride and the polymeric ferric sulfate solution are subjected to a mixed reaction under the heating condition according to the weight ratio of 1: (12-20), and a copolymer of poly dimethyl diallyl ammonium chloride and polymeric ferric sulfate is obtained; a copolymer is generated through a mixing reaction, sodium percarbonate particles and slag porous particles are added while stirring is conducted, and a finished product is obtained after sufficient and uniform mixing is conducted. The sludge water content can be reduced, the sludge increment is small, the use method is simple and convenient, the volume and the amount of the sludge are greatly reduced, the cost is low, and the method is environment-friendly.

The utility model provides a high-boiling-point substance desalting device, which relates to the technical field of polycrystalline silicon and comprises a pre-treatment mechanism, the feeding end of the pre-treatment mechanism is used for feeding high-boiling-point substances, the pre-treatment mechanism removes solids in the high-boiling-point substances in a physical and / or chemical mode, and obtained liquid is discharged from the liquid outlet end of the pre-treatment mechanism; a material inlet of the rectifying tower is connected with the liquid outlet end of the pre-treatment mechanism, and a liquid phase outlet in the top of the rectifying tower is connected with the high-boiling cracking section. Most solids in the high-boiling residues are removed through the pre-treatment mechanism, so that the problem that equipment pipelines are easy to block can be improved; aluminum ions are removed through the rectifying tower, so that the salt content of a high-boiling-point substance is reduced, and damage caused by poisoning and inactivation of resin in a high-boiling-point cracking section is avoided. In addition, the pretreatment mechanism can remove aluminum chloride and other metal impurities in the high-boiling-point substance, so that the salt content of the high-boiling-point substance can be reduced.

The invention relates to the technical field of cotton planting, in particular to a method suitable for planting cotton in medium-height saline-alkali soil in Xinjiang and application. The method comprises the following steps: (1) dividing the medium-height saline-alkali soil in Xinjiang into a planting area and a salt elimination area which are adjacent in sequence; the width of each planting area is 50-193cm, and the width of each salt elimination area is 40-65cm; (2) laying a drip irrigation tape on the planting area, and covering with a mulching film at the same time; before cotton is planted, a drip irrigation tape is used for dripping water in the planting area 2-4 times, and the water dripping amount each time is 15-32 cubic meters per mu; the time interval between two adjacent times of water dripping is 5-10 days; (3) after the last time of water dripping is completed for 5-10 days, punching holes penetrating through the mulching film, and sowing cotton seeds in the holes. According to the method, ridging is not needed, the drip irrigation belts are laid on the flat ground, the mulching film is covered, and 1-4 drip irrigation belts are laid under the mulching film, so that the emergence rate of the cotton in the medium-high saline-alkali soil can be increased, and the yield of the cotton is increased.

The invention discloses a method for purifying acid-containing low-abundance heavy water. The method comprises the following steps: (1) neutralization: adding carbonate without protons into the acid-containing low-abundance heavy water for neutralization reaction; (2) crystallization and separation: cooling and crystallizing the neutralized neutral salt solution, and filtering and separating; (3) reduced pressure distillation: performing reduced pressure distillation on the filtrate, and concentrating and evaporating to dryness to obtain pure low-abundance heavy water; and (4) rectification: carrying out isotope rectification on the low-abundance heavy water to improve the abundance of the heavy water, and carrying out multiple times of rectification and abundance improvement to obtain a pure high-abundance heavy water product. The carbonate is used as the neutralizer, does not contain protons, can effectively remove acid, and does not introduce hydrogen atoms into a heavy water system, so that the deuteration degree reduction caused by the neutralization process is avoided; through the combination of cooling crystallization and reduced pressure distillation, inorganic salt generated by neutralization can be effectively removed, and pure high-abundance heavy water with extremely low salt content is obtained; the method is simple to operate, low in equipment requirement and suitable for industrial-scale recovery treatment of acid-containing heavy water.

The application provides application of desalted plant ash in protection of cultural relics in grotto temples. The application also provides a mixed mortar for reinforcement of the cultural relics in the grotto temples and a preparation method thereof. The multi-scale fiber reinforced mixed mortar provided by the application has mechanical properties matched with the protection requirements of the cultural relics in the grotto temples, low shrinkage, good acid resistance and salt resistance, and can cope with various adverse environmental factors such as dry-wet changes, crack water seepage, acid rain, salt crystallization damage and the like in the preservation of the cultural relics in the grotto temples. The preparation method is simple, raw materials are economical and easy to obtain, and the product is light and flexible. The application can solve the problem of insufficient anti-cracking capacity of the existing protection materials for the cultural relics in the grotto temples, improve the safety and durability of the cultural relics in the grotto temples, and has a comprehensive protection effect.