45results about How to "Fast desalination" patented technology

A high-rate hydrothermal cleanup (HCU) process and system is disclosed for the rapid hydrolysis of renewable oils and reduction of inorganic and organic contaminants, such as salts, minerals, metals, asphaltenes, polymers, and coke precursors in both renewable oils and petroleum fractions. The process and system is characterized by a very short residence time, high-temperature, high-pressure, turbulent flow, hydrothermal operation. The HCU and integrated vapor-liquid separation system and process results in high yields of oil product that contains significantly reduced concentrations of inorganic and organic contaminants. The process may be operated to produce a concentrated clean glycerin byproduct and short-chain and long-chain free fatty acid product streams. The integrated vapor-liquid separation system and process performs at near atmospheric pressure by taking advantage of the water employed in the cleanup process and the energy imparted by the HCU reactor and eliminates the need for vacuum distillation.

The invention relates to a conditioner for the quick desalination of coastal saline soil, which comprises organic fertilizer, gypsum powder and polyacrylamide, wherein the application amount of the organic fertilizer is 5 to 10 cubic meters/mu, the application amount of the gypsum powder is 5 to 10 cubic meters/mu, and the application amount of the polyacrylamide is 1 to 1.3 kilograms/mu. Aiming at the special demands of sowing and seedling keeping in a coastal saline and alkaline area, the conditioner for the quick desalination of the coastal saline soil is developed, has the advantages of simple operation during use, local production of raw materials, low cost and quick desalination, can also be used for regulating the moisture and nutrients of the soil, maintaining water and soil nutrients, improving the soil and microenvironment of seeds and improving crop yield, and is a novel nontoxic conditioner for soil liquid manure.

The invention discloses a method for fast improving newly-reclaimed saline wasteland. The method is achieved through the steps of land formation, irrigation salt leaching, alkali pressing by laying sand, forward crop planting and crop rotation planting. The method has the beneficial effects that according to the method for fast improving the newly-reclaimed saline wasteland, the yield of oil sunflowers, beet and other saline-alkaline tolerant forward crops can be improved by above 20%, and the stable yield of wheat after three years is 6,000 kg/hm<2>; meanwhile, desalination can be fast achieved through land formation, alkali pressing by laying the sand and irrigation salt leaching; efficient utilization can be achieved through forward crop planting and reasonable crop rotation, and the newly-reclaimed saline wasteland is improved when utilized.

The invention provides a method for quickly desalting, dealkalizing and ploughing a soda saline-alkali paddy field. The method comprises the following steps of: in the rice field after rice harvest in autumn, turning up the soil by using a big plough in autumn after base fertilizer is applied; sunning the upturned soil; rotating the soil in a dry mode in spring of the next year; ridging and soaking; leveling the field by using a thick rake until slurry is settled; and transplanting. In the method, spring soil turnup is replaced by autumn soil turnup; autumn soil turnup is combined with springsoil rotation; advantages of two tillage methods of rotary tillage and autumn soil turnup are utilized, advantages are absorbed and disadvantages are complemented, advantages are utilized and disadvantages are avoided, soil fertility is adjusted, and soil application and improvement are taken into consideration; and water resource is saved, saline and alkali are removed quickly, the soil structure is optimized, fragile ecological environment is improved, high yield, stable production and sustained development of rice in saline-alkali adverse situation are promoted. Rice is planted in the sodasaline-alkali land by the method, so the method is simple and easy in operation and convenient to popularize, labor and time are saved, production input cost is low, yield is increased obviously, repair of the fragile ecological environment is facilitated, and income of farmers is increased.

The invention relates to low-temperature environmental protection crude oil demulsifier which is formed by mixing initiating agent, catalytic agent, epoxy ethane and propylene epoxide. The technical scheme is as follows: under the action of the catalytic agent, the initiating agent triggers the copolymerization of the epoxy ethane and the propylene epoxide so as to obtain linear polyether with active hydroxyl groups on both ends, and finally the obtained polyether reacts with polyisocyanates in aromatic solvent, wherein the initiating agent is glycol or propanediol; the catalytic agent is themixture of alkaline earth compound and alkali metal hydroxide; and the weight ratio of the initiating agent, the catalytic agent, the epoxy ethane and the propylene epoxide is 10:1:150:500. The low-temperature environmental protection crude oil demulsifier of the invention is used for the low-temperature dehydration, the desalination, the visbreaking, the wax resistance, the corrosion resistance,and the like of crude oil, has high adaptability, can be suitable for the fast desalination and the dehydration of thickened oil, thin oil and mixed crude oil of various oil fields, and can also be suitable for the fast desalination and the dehydration of the mixed crude oil of an oil refinery.

The invention discloses a separation and purification method of an MBTI. The method comprises the following steps: 1, extraction; 2, neutralization; 3, heat treatment; 4, membrane treatment; and 5, adsorptive separation, and desorption. So the high purity MBTI is obtained. The invention also discloses an application of the MBTI, and the application is that the MBTI, which is added to surimi products treating seawater fish or freshwater fish as a main raw material and is uniformly mixed, is used for enhancing the elasticity of the surimi products. The separation and purification method of the invention has the advantages of simple technology and good separation effect, and the MBTI has a great improvement effect on the elasticity enhancement of the surimi products.

The invention relates to a leaching and desalting method of the top soil of alkaline land; the method includes the following steps: (1) the top soil to be treated with leaching and desalting is stripped from the alkaline land; (2) the stripped soil is transferred to a special work place for leaching and desalting; (3) the stripped soil is put into a piece of comprehensive leaching and desalting equipment in the work place for leaching and desalting; (4) water with low salinity is added into the comprehensive leaching and desalting equipment for being mixed with the soil; (5) the comprehensive leaching and desalting equipment carries out soaking desalination and pumping filtration salt draining to the soil; (6) the soil treated with leaching and desalting is transferred back to the original land; (7) saline water generated in the leaching and desalting process is drained. By adopting the method, the top soil of alkaline land is stripped from the original site, and then the salt in the top soil is quickly eliminated by leaching, thus the planting capability of alkaline soil can be recovered quickly.

The invention discloses a deionized water all-in-one treatment method and device for water treatment of a micro-polluted water source. The all-in-one treatment method is combined with a forward osmosis technology and a membrane capacitance deionization technology. The forward osmosis technology can effectively remove micro-polluted substances from water, and a membrane capacitance deionization can concentrate and recycle a draw solution, so that removal of pollutants from water can be realized, and the draw solution is recycled; meanwhile, the problems of high membrane pollution rate, high energy consumption and the like are also solved; a forward osmosis unit and a multi-stage membrane capacitance deionization unit are simultaneously arranged in the treatment device; and the treatment device is convenient to mount and easy to operate, realizes effective removal of the pollutants from the water and has the advantages of low energy consumption, low membrane pollution rate, simplicity for operation and the like.

The invention discloses a coastal heavy solonchak 5N rapid high efficiency desalting method, and belongs to the technical field of mudflat solonchak improvement. The method includes: tillage, soil sunning, soaking, water rotation, and salt discharging, and the five steps are cycled for many times, multiple water rotation tillage is a key of the technical system, and is an important key to achievement of rapid desalting. The advantages of the invention are that watering and drainage are easy to perform in a field, the operation flow is complete and is easy to implement, the electricity safety is high, the desalting efficiency is high, rapid high efficiency desalting of coastal heavy salt fields is facilitated, and a cultivation level of the coastal heavy salt field can be reached; and the coastal heavy solonchak 5N rapid high efficiency desalting method has economic value and social meaning to coastal mudflat soil resource development and utilization, grain production, environment protection, and salt-tolerant plant research.

The invention discloses a simple and fast desalting method of sandy heavy saline soil. The simple and fast desalting method includes leveling saline-alkali soil; arranging draining canals, covering straws, cleaning ditches and the like. The simple and fast desalting method is characterized in that the soil is covered with wheat straws or barley straws, and the natural concentrated rainfall feature in the coastal area is fully utilized, thus the coastal sandy saline soil is fast desalted. The simple and fast desalting method is easy and convenient to operate, low in cost and high in application value and can be widely applied to fast desalting of the sandy saline soil in the coastal beaches of Jiangsu province, and therefore large-scale crop cultivation is facilitated to improve utilization potential of the beaches.

The invention discloses a method for recycling kitchen waste after salt removal, and relates to the technical field of garbage disposal engineering. The method specifically comprises the following steps: (1) collecting the kitchen waste, performing recycling, performing sorting, and separating an oil layer in the recycled kitchen waste; (2) crushing kitchen waste generated after separation to formfine slurry; (3) performing instantaneous sterilization on the crushed slurry at high temperature of 100-120 DEG C, and adding a pH regulator into the sterilized slurry to make a pH value reach and maintained at 3.5-4.5 or 9-10; (4) electrolyzing the adjusted slurry obtained in the step 3, and electrolyzing the slurry obtained in the step 2 to form a hypochlorite; and (5) after the salt content in the kitchen waste reaches a standard value, adding a pH regulator to adjust the pH value to 6-8, and stopping electrolysis. According to the method provided by the invention, the obtained natural fertilizer can be recycled, and treated swill can meet a national emission standard in China.

The invention relates to a method of removing inorganic salt from phenylalanine fermented liquid. The method includes: performing ultrafiltration to a phenylalanine fermented liquid through an ultrafiltration membrane, regulating pH of a phenylalanine ultrafiltered clear liquid, injecting the phenylalanine ultrafiltered clear liquid into a first electrodialysis device for desalting the liquid; when the electrical conductivity of the phenylalanine ultrafiltered clear liquid is 5000-6000 [mu]s/cm, injecting the clear liquid into a second electrodialysis device, and crystallizing the second batchof the phenylalanine electrodialyzed concentrated liquid; separating the crystal from the mother liquid and drying the crystal to prepare phenylalanine crystal. The method is simple in control and isfree of addition of chemical substances and generation of solid residues during treatment, wherein the generated waste liquid can be recycled for the production of fermentation, so that the method isfree of environmental pollution. The method is suitable for being promoted and applied.

The invention provides a three-in-one cultivation method with desalination and planting integration for heavily saline soil in coastal beaches; with 20%. heavily saline soil serving as an example, salt in the saline soil is soaked out through fresh water by adopting a three-drying one-draining method, the water in which the salt of the saline soil is dissolved is discharged, and the heavily salinesoil is subjected to salt washing 5 times circularly so that the salt content of the heavily saline soil is decreased from 20%. to 6-7%.; the desalted soil is further desalted by adopting a water-soil rotary tillage method three times circularly so that the salt content of the soil is decreased from 6-7%. rapidly to about 3%.; the desalted soil is further desalted by adopting a sunning-soaking rotation method two times circularly, the desalting effect of upland field planting can be rapidly achieved, and the salt content of the soil layer with the depth of 0-20 cm is further decreased to 2%.and below; the method of the invention has high desalting speed and good desalting effect, allows saline-alkaline soil to be transformed to a degree suitable for planting common rice and wheat varieties within one year, and is suitable for desalting and planting in a beach heavily saline soil area.