53results about How to "Achieve desalination" patented technology

The invention relates to a method for carrying out desalination and zero-discharge processing of power plant desulphurization wastewater by adopting an electrodialysis technology. The method comprises the following steps: neutralizing, precipitating, coagulating and filtering the power plant desulphurization wastewater and removing CODs (Chemical Oxygen Demands), heavy metals, F-ions, gypsum, silicon dioxide, hydroxide of iron and aluminum and other insoluble particles in waste water; separating C1-ions and other monovalent ions in clear liquid from SO3<2->, SO4<2-> and other divalent ions through nanofiltration; desalinating and concentrating water produced by the nanofiltration by adopting a multistage countercurrent reverse electrodialysis method. The method has the advantages that the concentration of the Cl-ions in nanofiltration concentrated water and electrodialysis freshwater generated by the method is lower, and the nanofiltration concentrated water and the electrodialysis freshwater can be returned for flue gas desulfurization; the content of NaCl in a small amount of electrodialysis concentrated water produced reaches above 12 percent, the bivalent ions and other impurities are removed by nanofiltration, and the electrodialysis concentrated water is further evaporated and concentrated, so that chlorine-alkali industry electrolytes and NaCl salt can be obtained. Through the method, the zero-discharge treatment and the resource utilization of the desulfurization wastewater can be realized.

The invention belongs to the field of biochemistry analysis technology, and specifically relates to a one-step concentration and demineralization purification treatment method of biological samples by the use of patterning surface. The patterning surface can be widely applied in pretreatment and detection of biological samples. The method comprises the following steps of: constructing sealing patterning surface of hydrophobic-hydrophilic-hydrophobic region on substrate; dropping a polypeptide or protein solution onto the patterning surface prepared by the above step, naturally drying at room temperature to obtain dried sample points; dropping a substrate solution onto the above dried sample points, and naturally drying at room temperature and forming uniform cocrystallization of the sample and substrates on the patterning surface, so as to realize the concentration and demineralization purification treatment of biological samples. By the use of the patterning surface constructed in the invention, in MALDI-TOF MS detection, signal noise ratio, sensitivity and salt tolerance are significantly improved. The method has a great practical application value.

The invention relates to a method and a device for recovering a carbon source in urban sewage. The method comprises the following steps: by taking urban sewage as raw material liquid, after the urban sewage is filtered, feeding the filtered urban sewage into one side of a forward osmosis membrane assembly, and then feeding the filtered urban sewage into an absorbed liquid barrel at the other side of the forward osmosis membrane assembly under the action of absorbed liquid at the other side of the forward osmosis membrane assembly, wherein the absorbed liquid is seawater; and feeding the diluted seawater in the absorbed liquid barrel into a membrane separation assembly, collecting produced water at a produced water outlet of the membrane separation assembly, and flowing concentrated water back to the absorbed liquid barrel. According to the invention, urban sewage as raw material liquid and seawater as absorbed liquid enter a forward osmosis system, water in the raw material liquid seeps through a forward osmosis membrane, and pollutants are intercepted, so that the urban sewage is concentrated, the seawater is diluted, thereby simultaneously achieving effects of sewage concentration and seawater desalination, reducing the processing cost of the urban sewage, and realizing the recovery of organic carbon sources; and the diluted seawater is easy to desalinate, thereby reducing the cost of seawater desalination.

The invention relates to a double splitflow nano upgrade liquid phase chromatogram online desalting, enrichment and mass spectrum combination system which comprises a pump, a first splitter, a second splitter, a sample valve, a switching valve, a backpressure valve, a capillary tube separation column and a mass spectrometer, wherein, the pump, the first splitter, the sample valve, the second splitter, the capillary tube separation column and the mass spectrometer are connected in series in turn through pipelines; the split ports of the first splitter and the second splitter are respectively connected with the two inlets of the switching valve through the pipelines; moreover, the outlet of the switching valve is connected in series with the backpressure valve and then is communicated with a waste fluid pool through the pipeline. The system has the advantages that: during the sampling and separation of sample, the system has less pressure fluctuation; with small pre-column dead volume, the system overcomes the gradient delay effect caused by large-volume sampling adopted in the prior nano upgrade liquid phase separation system; with excellent separation repeatability, the system is particularly suitable for gradient separation; meanwhile, the system can be used in online desalting, enrichment and mass spectrum combination of sample with high salinity and low concentration; moreover, the system has a simple structure, convenient operation and easily realized automation.

The invention discloses an efficient treatment system and a treatment method for organic wastewater of bulk drug production in the pharmaceutical industry. The system comprises a high-concentration wastewater pretreatment unit, a triple effect evaporation unit, a biochemical treatment unit, a sludge pressure filtration unit and an activated carbon filtration deep treatment unit. By introduction ofa series of treatment means such as iron carbon reduction, catalytic oxidation, coagulation air floatation, triple effect evaporation, biochemical reaction and the like into the unit system, physicochemical treatment and biochemical treatment are combined together, removal efficiency of pollutants is increased, and the pollutants such as COD (chemical oxygen demand), ammonia nitrogen, SS (suspended solids) and the like in the wastewater are effectively degraded.

The invention belongs to the technical field of petrochemical industry, and particularly relates to a method and an apparatus for high-efficient crude oil desalination / dehydration by a combined filtration-electric field coalescence method. The apparatus for high-efficient crude oil desalination / dehydration of the invention comprises a raw material conveying system, a mixing device, a dehydration filtration device, and an electrical desalting device which are connected in order. The method for high-efficient crude oil desalination / dehydration of the invention is realized by using the apparatus for high-efficient crude oil desalination / dehydration of the invention and through the steps of raw material preheating, mixing, preliminary demulsification, and electrical desalination / dehydration. The invention adopts a combined filtration-electric field coalescence method for crude oil desalination / dehydration, which can overcome respective disadvantages of performing desalination / dehydration process by a filtration method or an electric field coalescence method, decrease running severity of both the two methods, not only improves the adaptability of the crude oil desalination process, the desalination / dehydration rate, and the stable running rate, but also reaches the purposes of energy saving and consumption reduction.

The invention relates to a preparation process of ornithine aspartate for injection. According to the preparation process, a one-step operation of concentration, desalination and purification is carried out on the obtained reacted raw material liquid. The process used in the invention, which has the advantages of simplicity, short production period, and low energy consumption, is very suitable for the industrialized production of ornithine aspartate injections.

The invention discloses a treatment method of high-salinity high-concentration organic wastewater, comprising: adding high-salinity high-concentration organic wastewater into an evaporating kettle, and introducing ozone into the evaporating kettle through an ozone generator at the beginning of heating and evaporating the organic wastewater; mixing ozone with steam generated by heating and boiling the organic wastewater, and charging the mixed gas into a reactor through a pipeline for the purpose of reaction or reacting the mixed gas directly in the pipeline, wherein a reactor is added or the pipeline is extended to ensure sufficient reaction time of the mixed gas so that the ozone fully reacts with volatile organic compounds in the steam; charging the fully reacted mixed gas into a condensing device for condensing, and discharging the formed condensate directly; after the organic wastewater in the evaporating kettle is evaporated completely, subjecting the residual salt and refractory organic matters therein to recycling and separation or solid waste treatment. The treatment method according to the invention can provide desalination for the high-salinity high-concentration organic wastewater and degradation for the organic pollutants in the wastewater, the process is simple, and the cost is low.

The invention discloses a hydrophilic chromatographic packing as well as a preparation method and application thereof. The packing is hydrophilic polymer-silica gel hybridization packing generated by in-situ polymerizing GMA-G hydrophilic monomers on the surface of silica gel particles through a surface-initiated atom transfer radical polymerization method. The surface of the hybridization packing is highly coarse, so that the specific surface area is relatively high. The concentration and separation of glycopeptides or oligosaccharide in a standard glycoprotein, oligosaccharide and plasma complicated sample can be successfully realized by utilizing a solid phase extraction column and a high efficiency liquid phase chromatographic column, which are filled with the hydrophilic polymer-silica gel hybridization packing. The selective concentration and separation effect is obvious, and 47 varieties of oligosaccharide glycoforms can be identified in the plasma glycoprotein; moreover, the desalting treatment on the sample can be realized in the concentration process, and the loss of the sample can be reduced. The application value in the separation analysis of the complicated biological sample is relatively good.

The invention discloses methods for restoring an ecosystem of alkali-saline grassland by adopting a multifunctional vibration-type soil-improving machine, and relates to methods for restoring the ecosystem of the alkali-saline grassland. The methods solve the problems that the traditional methods for treating the alkali-saline grassland have high investment, slow response and single object and can only treat slight saline soil. The first method is to adopt vibration subsoiling to improve soil for slight alkali-saline grassland; the second method is to adopt vibration subsoiling and biochemical preparation spraying to improve the soil for medium alkali-saline grassland; and the third method is to adopt vibration subsoiling, biochemical preparation spraying and saline tolerant plant planting to improve the soil for severe alkali-saline grassland. The methods not only can save energy and reduce consumption, but also can improve the rate of soil pulverization, improve physical indexes of the soil, retain water, reduce alkali and salt, and inhibit accumulation of salt in the surface soil. By adopting the methods, the investment cost is reduced; and the methods have quick response, and can restore the slight alkali-saline grassland, the medium alkali-saline grassland and the severe alkali-saline grassland.

The invention discloses a critical or supercritical solar water and power coproduction device. Seawater is converted into steam directly by solar energy to be desalted, and then a machine is pushed by the steam to do work, so that power can be generated, and water and power coproduction effects can be realized. The critical or supercritical solar water and power coproduction device is completely different from technical means for saving energy by means of reducing the evaporation temperature of seawater during sea water desalinating by the aid of the traditional heat methods, and the seawater is evaporated in critical states to be desalted and desalinated; the seawater in the critical states is extremely low in enthalpy difference, and accordingly energy can be saved by approximately 20% by methods implemented by the aid of the critical or supercritical solar water and power coproduction device as compared with low-temperature desalination technologies; the critical or supercritical solar water and power coproduction device is in 'light-heat-electric' power generation modes in power generation procedures, and accordingly the power generation efficiency of the critical or supercritical solar water and power coproduction device is higher than the power generation efficiency of 'light-electric' conversion forms used during the traditional solar power generation. According to the technical scheme, the critical or supercritical solar water and power coproduction device has the advantages that a light absorption coating with an ultrahigh absorption rate is arranged on the surface of a porous material with low heat conductivity, so that the seawater on surface layers has the local high temperature, the light-steam conversion rate can be increased, and the yield of fresh water can be greatly increased; the steam in critical states is high in work capacity, and the Carnot efficiency of the steam is close to 55%.

The invention relates to an electrochemical treatment device of a desulphurization waste water. The electrochemical treatment device comprises an electrochemical treating pond, a first polar plate, a second polar plate, an electrode timing converter, a coupling precipitation pond, an overflow weir and a slag scraping assembly. The electrochemical treatment device of the desulphurization waste water is fast to assemble, has no need of additional chemical agent, is simple to operate and can be used for greatly alleviating the workload of the working personnel; by adopting the periodic electrode inversion, the service life of the first polar plate and the second polar plate can be prolonged, the passivation problem of the electrode can be solved, the energy consumption can be reduced, and the operation expense can be saved.

The invention provides an electrolysis method to treat the sewage oxidized by DSD acid. Wherein, with NaCl, Na2SO4 or original salt in sewage as conducting medium, adjusting the plate height of electrolytic bath as 25~35cm and the work current as 30~50A; leading the diluted sewage into the bath to position of 4~8cm of plate; electrifying and electrolyzing the sewage for 2. 5~3. 5h with O2 or Cl2 on anode and H2 on cathode; using the oxidation of NaClO and reduction of H2 to destroy the dye molecular structure and decolor. This invention can desalinate and decolor at one time to let the sewage come up to discharge standard.

The invention relates to the field of frozen seawater desalting and in particular relates to an ice crystal nucleation and frozen seawater desalting device system adopting a micro-particle sedimentation way. The ice crystal nucleation and frozen seawater desalting device system comprises a refrigeration mechanism, a micro-particle storage device, a seawater frozen and crystallized ice-water separation device, a waste sweater micro-particle separator and a freshwater micro-particle separator, wherein the seawater frozen and crystallized ice-water separation device comprises two refrigeration agent flowing heat exchange shells, an ice crystal conveyor belt and ice crystal scraping knives; grooves are formed in the refrigeration agent flowing heat exchange shells; the refrigeration agent flowing heat exchange shells are symmetrically arranged along the axis direction; the ice crystal conveyor belt is located between the two refrigeration agent flowing heat exchange shells and is arranged along the axial direction of the refrigeration agent flowing heat exchange shells; the refrigeration agent flowing heat exchange shells are internally provided with the ice crystal scraping knives along the axis direction of the heat exchange shells; rotation directions of the ice crystal scraping knives in the two refrigeration agent flowing heat exchange shells are opposite. By adopting the ice crystal nucleation and frozen seawater desalting device system provided by the invention, the formation of salt cells in an ice crystal growth process can be effectively inhibited; furthermore, the growth of ice crystals in seawater is promoted, and freezing, crystallization and desalting of the seawater are realized.

The invention discloses a manufacturing method of dried persimmons, and the manufacturing method of the dried persimmon comprises the following seven steps: harvesting and selecting materials, cleaning peeling, sunning pressing kneading, fumigating with sulfur and deastringenting, kneading sunning shaping, stacking covering frosting, and chilling and drying in air. By processes of manual peeling and manual shaping, and the like, loss of proteins, sugar, trace elements and other vitamins and the like of the dried persimmons can be prevented, original flavor and nutrients of the dried persimmons can be effectively preserved, the appearance of the dried persimmons cannot be easily damaged by manual operation, the manual operation is uniform in force, color is good; through the processes of fumigating with the sulfur and deastringenting, and subsequent chilling and drying in the air, tannin-induced astringent taste can be effectively removed, the anti-astringent phenomenon in the later drying process can be prevented, so that good taste of the dried persimmons can be ensured. The dried persimmons have dry cores, keep the flavor of persimmon fruits, have even appearance and better color, ensure the good taste without damaging the medical value, can be used as edible food, can also be used as a medicine and can be eaten directly.

The invention relates to the technical field of desulfurization and particularly discloses a method for separating desulfurization waste water by using an electric drive membrane. The method comprises the following steps of (A) front-end pretreatment; (B) separation and concentration by the electric drive membrane; and (C) multiple-effect evaporation crystallization. The water production rate of the method can reach over 95%, if water quality of a system fluctuates, when the SO4<2-> content is relatively high, excessive scaling of an assembler can be avoided by only adopting a rearrangeable electrode, that is to say, the system has a good self-cleaning effect on inorganic salt scaling. Compared with a double-membrane method, the residual chlorine resistance of the electric drive membrane is greatly enhanced, so that a small amount of fungicide can be added and the system is prevented from being polluted by bacteria; and meanwhile, the electric drive membrane runs through the propelling force from DC, so that the method also has a sterilization effect on microorganisms.

The invention provides a saline-alkaline soil conditioner and a saline-alkaline soil conditioning method. Raw materials of the conditioner comprise an aluminum sulfate foamer, a chelating agent, mushroom bran, a gel, humic acid, an activator and water; and the gel is a mixture containing carboxymethyl cellulose ether and polyvinyl alcohol according to a mass ratio of 1:(1-2), the foamer is an animal and vegetable protein foamer, and the mushroom bran is vinegar residues. Various components are cooperatively used and processed to prepare a special foam form, so the conditioner and the method can realize desalinization in a high-efficiency and water resource-saving manner, and have a certain yield increasing effect on crops.

The invention provides a method and a system apparatus for treating high-salt volatile organic wastewater, and belongs to the field of wastewater treatment. The method includes the following steps: pretreating the high-salt volatile organic wastewater; pumping the pretreated wastewater, an acid regulator and an alkali regulator into a pipeline mixer to control the concentration of hydrogen ions inthe wastewater; conveying a mixed liquid in the pipeline mixer into an evaporation reactor, and controlling the addition mode of a persulfate, the evaporation temperature and the evaporation time; mixing the evaporated steam with ozone, allowing the obtained mixture to go through a condensing device, introducing the condensed mixture to condensate water in order to secondarily degrade volatile organic compounds; and purifying reacted exhaust gas, introducing the purified exhaust gas into the evaporation reactor for reuse, and allowing distilled water obtained after the reaction to be used ascondensate water or discharged. The method and the system apparatus realize the gas-liquid two-phase synchronous oxidation in the evaporation process of high-salt volatile organic wastewater, greatlyshorten the treatment process flow and improve the utilization rate of resources, and make the obtained distilled water completely meet reuse and discharge standards.

The invention relates to a transformation method for saline-alkali soil. The transformation method for the saline-alkali soil aims at solving the problems of low economic benefits and a poor production capacity of the saline-alkali soil in an existing saline-alkali soil transformation method. The method comprises the steps of step 1, drilling a three-layer water mixed deep well, step 2, a sprinkling irrigation system of reasonable salt leaching, wherein a self-propelled sprinkling irrigation system is constructed around the drilled well, step 3, surface soil improvement within the range of a sprinkling irrigation circle, wherein smashed corn stalks or dune sand obtained from local materials are applied in soil within the range of the sprinkling irrigation system, and rotary tillage is carried out, step 4, mixed forage grass crop planting, wherein oat grass or sorghum sudanense is planted in the middle of every April, and the transformation for the saline-alkali soil is finished. According to the transformation method for the saline-alkali soil, a sprinkling salt leaching technology is adopted, at the same time, a corn stalk improvement soil surface permeability technology is implemented, the soil fertility is improved, the planting of cash crops such as the oat grass, the sorghum sudanense and sunflower is achieved, and a significant effect is achieved that economic benefits are increased by 50-60 times. The transformation method for the saline-alkali soil is used for transforming the saline-alkali soil.

The invention provides an electrogenic desalting device based on electronic regulation and control and a method for treating ammonium sulfate-containing ptetrochemical wastewater by using the device, and relates to the field of wastewater treatment and resource cyclic utilization, in particular to the electrogenic desalting device and the method for treating ammonium sulfate-containing ptetrochemical wastewater by using the device. The device and the method aim at solving the problems that in the prior art, the treatment difficulty of industrial wastewater is high; the biological chemical treatment is difficult; energy sources in the industrial wastewater are wasted. The electrogenic desalting device comprises an anode chamber, an anode carbon brush, a negative ion exchange film, a desalting chamber, a positive ion exchange film, a cathode carbon brush, a cathode chamber, a reference electrode, an outer resistor and an aeration device. The method for treating wastewater by the electrogenic desalting device is concretely performed according to the following steps of firstly performing domestication on active sludge with the ptetrochemical wastewater degradation capability so that all active sludge can become electrogenic bacteria; then, treating the ammonium sulfate-containing ptetrochemical wastewater in the anode chamber; next, treating the ammonium sulfate-containing ptetrochemical wastewater in the cathode chamber; finally, performing desalting through the desalting chamber. The ammonium sulfate-containing ptetrochemical wastewater is subjected to desalting and standard-reaching treatment.

The invention discloses an extraction method of polycyclic aromatic hydrocarbons in a PC / POE product. The extraction method comprises the following steps of a, crushing the PC / POE product to obtain aparticle sample; b, weighing a preset amount of the crushed particle sample, putting the crushed particle sample in a headspace sample bottle, adding an activating agent, and performing ultrasonic treatment under a 55-65 DEG C water bath to form suspension liquid after covering; and c, after uncovering, weighing a preset amount of the suspension liquid, slowly dropwise adding the suspension liquidin an extraction vessel containing a polar purifying agent and filled with a reverse-phase extraction flocculation and adsorption agent in a tube, and performing centrifugal extraction or negative pressure extraction on a supernate after vortex mixing. The extraction method provided by the invention has the characteristics of rapidness, simpleness, convenience, low cost, less interference, smallloss to instrument and the like.

The invention relates to a desalting membrane port used in on-line connection with a mass spectrum and the application thereof. The desalting membrane port comprises capillary tubes, a cellulose acetate hollow-fiber membrane and a hermetic container. A sample inlet and a mass transfer exchanging solution outlet, a sample outlet and a mass transfer exchanging solution inlet are arranged on two corresponding sides of the hermetic container. The capillary tubes are sheathed with sample inlet and the sample outlet. The cellulose acetate hollow-fiber membrane passes through and is sheathed among the capillary tubes in the hermetic container through the sample inlet and the sample outlet. An on-line connection system of the desalting membrane port and the mass spectrum comprises a constant flow pump, a mass transfer exchanging solution source, a desalting port, a nano flow mass spectrum spray nozzle and a mass spectrometer. A protein sample is driven by the constant flow pump, goes through the desalting port for desalting, is sprayed by the nano flow mass spectrum spray nozzle and finally is sent to the mass spectrometer for detection. The invention has the advantages of good desalting effect, good repeatability, small dead volume, small loss of protein sample, easy connection with other parts, simple device, convenient operation and low cost.

The invention relates to the technical field of fruits and vegetables seedling, and in particular relates to a strawberry seedling cultivating method capable of resisting a continuous cropping obstacle. The method comprises the steps of soaking strawberry seeds in a saturated salt water solution for soaking in a vacuum environment, soaking the strawberry seeds in scale mucus, sowing the strawberry seeds in garden soil of continuously cropping strawberry, and irrigating with a nitrobacteria solution; successively inoculating strawberry blonde monospora, fusarium oxysporum, phytophthora nicotianae, bacillus anthraci, sphaerotheca fuligine and botryis cinerea into young stems and leaves of the strawberry by stages, inoculating the fungi or viruses and timely spraying 5%-10% calamine water suspension, an allium caelureum extract liquid, a sweet pomegranate rind extract liquid, a lantern plant calyx extract liquid, 5% sodium sulfate solution and 0.05% hydrogen bromide water solution separately; and reserving the finally healthy strawberry seedlings. The treated strawberry seedlings are extremely high in disease resistance and can show relatively high disease resistance and high yield when planted into a continuous cropping field.

The invention relates to the field of wastewater treatment and resource cyclic utilization, in particular to a device for treating acrylonitrile-containing oil refinery wastewater through power generation desalination based on electronic regulation and control and an application method of the device. The device and the application method aim at solving the problems that in the prior art, the difficulty of industrial wastewater treatment is large, biochemical treatment is difficult, and energy in industrial wastewater is wasted. The device comprises an anode chamber, an anode carbon brush, an anion exchange membrane, a desalination chamber, a cation exchange membrane, a cathode carbon brush, a cathode chamber, a reference electrode, an external resistor and an aeration device. The method includes the steps that firstly, activated sludge is acclimatized; secondly, the wastewater is treated in the anode chamber; thirdly, the wastewater is treated in the cathode chamber; fourthly, desalination treatment is carried out. The device and the application method are used for treating the acrylonitrile-containing oil refinery wastewater and desalinating the wastewater.

A machine room fresh air cooling, dehumidifying and desalting system driven by power waste heat of an internal combustion engine comprises an internal combustion engine power unit including a power output shaft, an internal combustion engine electricity generation unit which comprises a power input shaft, wherein the power input shaft is in power connection with the power output shaft and used for driving the internal combustion engine electricity generation unit to operate, an absorption type refrigerating unit which utilizes waste heat generated by the internal combustion engine power unit to produce cold energy through absorption type circulation, and an absorption type dehumidifying and desalting unit which uses flue gas waste heat and cylinder sleeve water waste heat of the internal combustion engine power unit as heat sources, and uses the cold energy produced by the absorption type refrigerating unit as a cold source to cool, dehumidify and desalinate fresh air. According to the machine room fresh air cooling, dehumidifying and desalting system, the waste heat generated by the internal combustion engine power unit in the power generation process of the internal combustion engine is fully utilized, cooling, dehumidifying and desalting of air are achieved through combination of the absorption type refrigerating unit and the dehumidifying and desalting unit, and the energy utilization rate is increased.