1469results about How to "Reduce salt content" patented technology

An autonomous water source (AWS) for extracting water from ambient air and delivering it to a plant to support growth. The system is based on an adsorption-desorption-condensation (ADC) cycle using a sorption material to extract moisture from ambient air and condensing the water vapor driven off from the sorption material by subsequent heating and followed by condensation. Liquid condensate produced in this process on the condenser is collected and delivered by gravity to a plant to reduce thermal stress and to support growth. The invention provides a sustainable source of irrigation water for agriculture and forestry, including areas where no water resources exist or are not economically viable. It can be tailored in size, and therefore, output capacity, reflecting the desired water requirements of a particular application, and can be used to replace most agricultural situations now reliant on surface water drip feed systems. The device is simple, rugged, invulnerable to rain, snow, and freezing conditions, and can be designed to last for many years without service as there are few moving parts and power required for operation is provided by sunlight.

The invention provides a quick preparation method for a pickled vegetable containing biodiasmin. The quick preparation method comprises the following steps of: preparing biodiasmin liquor, preparing pickled vegetable fermentation liquor, preparing a seasoning fermentation liquor, pre-treating and preparing a finished pickled vegetable containing biodiasmin. According to the quick preparation method disclosed by the invention, the pickled vegetable fermentation liquor is independently prepared according to the conventional pickled vegetable production way, and the pickled vegetable fermentation liquor is treated by seasoning to form seasoning fermentation liquor; osmotic dehydration and the brittleness-keeping treatment are carried out on the fresh vegetable to obtain a semi-finished product; and the semi-finished product is pickled by the seasoning fermentation liquor, and the seasoning fermentation liquor is quickened up to permeate into the vegetable through the vacuum treatment to obtain the delicious finished pickled vegetable. The pickled vegetable is prepared by the preparation method disclosed by the invention is low in salt content, short in production time, high in calcium content and biodiasmin content and beneficial to the body health of a user; and moreover, the automation degree of the pickled vegetable processing is improved.

The present invention relates to a method for lithiation of an intercalation-based anode or a non-reactive plating-capable foil or a reactive alloy capable anode, whereby utilization of said lithiated intercalation-based anode or a plating-capable foil or reactive alloy capable anode in a rechargeable battery or electrochemical cell results in an increased amount of lithium available for cycling, and an improved reversible capacity during charge and discharge.

The invention provides a processing method for zero draining or low draining of electroplating wastewater. The method adopts an integrative technique, such as barrier concentration, barrier separation, ion exchange, and ultraviolet light catalytic oxidation, etc. The following steps are adopted: the pretreatment of the electroplating wastewater; the treatment for the three types of wastewater including pickling wastewater, wastewater containing cyanide and passivating and electroplating rinsing composite wastewater; and the treatment for the wastewater in an acid-soluble pool. Compared with the wastewater in an integrative electroplating plant with universal generic multi-plating species, only the prior water separation method with no need to control the troubled water strictly can realize : first, zero draining of the electroplating wastewater is performed; second, when operating in the low energy consumption way, 65 to 85 percent of water recovery is realized, the left wastewater which can not be recovered is discharged when reaching the primary discharge standard of National Standard; third, the processing cost is reduced; fourth, the metallic ion in the wastewater can be effectively recovered and utilized, at the same time, the benefit disinvestment cost is produced; fifth, the amount for causing solid waste is reduced; sixth, the invention is advantageous to realize the automatic control and the operation.

The invention discloses a biological mixed bacterial fertilizer and a preparation method and application thereof. The biological mixed bacterial fertilizer is prepared from, by weight, 1-20 parts of a compound bacterial agent, 300-400 parts of organic materials, 500-600 parts of inorganic materials, 800-1000 parts of chemical fertilizers, 5-10 parts of trace elements, 300-500 parts of waste liquid, 30-50 parts of amino acid salts and 50-100 parts of additives.

A method and apparatus for desalinating water combined with power generation, comprising a desalination system used for desalinating coastal seawater and comprising a power generation system, wherein such dual purpose co-generation facility captures the heat vapor exhausted or a steam turbine generator's condenser is replaced by the desalination plant's heat exchanger enabling such captured heat energy to reduce the energy requirements of the desalination plant, and wherein brine solution being treated by the desalination plant is pumped from the substrata sea water table wells having low salt content brackish water.

The invention discloses a sea cucumber polypeptide functional food and a preparation method thereof which not only remarkably improves the content of polypeptide, but also has no chemical residues; the contents of salt and arsenic are low; the food is healthier and safer to eat; simultaneously the food is simply operated, easily controlled, is effective and saves energies. The key technical scheme includes: selecting a compound protease of Protamex and needing not to adjust the pH value of materials; carrying out processes of desalting and arsenic removing on an enzymolysis liquid; more than 80 percent of the molecular weight of the product is between 100 to 6000Dalt; wherein, the small polypeptide of 100 to 2100Dalt is more than 70 percent; the product components and the content weight percentages are as follows: 50 to 60 percent of polypeptide, 5 to 10 percent of free amino acids, 2.5 to 7.5 percent of mucoitin as well as containing the inherent nutrition components of a plurality of minerals and vitamins of the sea cucumber. The product has the effects of resisting knub, reducing blood pressure, preventing cardio-cerebrovascular diseases, resisting fatigue, delaying senescence, improving the immunity. The food can be used as a healthy food to eat and can also be used as a food and a medicine additive.

A process for preparing the collagen sponge includes such steps as extracting collagen in acetic acid by digestion of pepsinum, filtering, taking supernatant, neutralizing by sodium hydroxide, salting out in sodium chloride solution, centrifugal separation of deposit, dissolving it in acetic acid, dialyzing by acetic acid and then by the solution of bisodium hydrogen phosphate, and freeze drying.

The invention discloses a power plant wastewater zero-discharge treatment technique which comprises a pretreatment process, an evaporative concentration process and an evaporative crystallization process, wherein the pretreatment process equipment comprises a precipitation and concentration tank, a sludge dewatering machine, and a raw water precipitation tank, a primary softening reactor, a secondary softening reactor and a softening precipitation tank which are sequentially connected; the evaporative concentration process equipment comprises an automatic back flush filter, a plate-type preheater, a degasser and a falling film evaporator which are sequentially communicated; and the evaporative crystallization process equipment comprises a concentrated solution tank, a crystallizing heater and a crystallizer which are sequentially communicated. The desulfurization water treatment technique is reasonable in step design and performs the pretreatment, evaporative concentration and evaporative crystallization on the desulfurization wastewater, and the end products are only distilled water and crystalline salt, thereby reducing the discharge of the harmful substances, lowering the energy consumption and implementing the goal of zero discharge of desulfurization wastewater.

The invention discloses a processing method of zero drainage of ion liquid aqueous solution, which comprises the following steps in sequence: 1) a membrane concentrating set is used for concentrating the ion liquid aqueous solution to 5-15 percent; a membrane element is the combination of a reverse osmosis membrane or a nanofiltration membrane and a reverse osmosis membrane element; 2) one or any combination of flash evaporation, falling film evaporation or climbing film evaporation is used for concentrating the solution to 60-90 percent; 3) a movable scraper type wiped film evaporator is used for concentrating the solution to more than 95 percent. The method combines the advantages of membrane concentration, reduction vaporization and wiped film evaporation technology, thus completely recycling ion liquid and water of 0.005-10 percent of ion liquid aqueous solution; the pureness of the ion liquid obtained is more than 95 percent and the salt content of the water is lower than 0.001 percent. The method is characterized by saving energy and water, reliable technique, high product quality, easy realization and wide adaption scope, thus having important practical value in the green chemical field that uses the ion liquid as a solvent.

The invention relates to the field of food processing and discloses a method for making a stewed duck with bean sauce. In the invention, injection seasoning technology, vacuum massaging technology and compression marinating technology are integrated into a novel processing technique. The stewed duck with bean sauce made by the invention has the advantages of rich sauce fragrance, tender meat quality, proper elasticity and unique taste. The method overcomes the defects that the traditional stewed ducks with bean sauce cannot be pickled uniformly and the making period is too long, can effectively keep nutrient components in the duck, and can prolong the shelf life of the finished product. The raw materials and making parameters of the method are quantified, so the method can ensure the stable quality of products, facilitates the quality control, and has a prospect for large-scale industrialized production.

The invention discloses a purification system for flue gas generated by burning wastes and a purification process thereof. The purification system comprises a flue of a refuge incinerator, a dust remover, a device for decomposing and removing dioxins, a flue gas washing tower, a fly ash collecting device, a fly ash washing and dehydrating system, a sewage treatment system, a flue gas heating device and a draught fan; one side of an inlet of the dust remover is connected with the flue, and the other side of the inlet of the dust remover is connected with the device for decomposing and removing dioxins; the fly ash collecting device is connected under the dust remover and the fly ash washing and dehydrating system; the device for decomposing and removing dioxins is connected with the lower part of the flue gas washing tower through a pipeline; an outlet of the flue gas washing tower is connected with the flue gas heating device; meanwhile, a water drain of the flue gas heating device is respectively connected with the fly ash washing and dehydrating system and the sewage treatment system; and purified flue gas is exhausted through the draught fan by using the flue gas heating device. The flue gas can meet the stricter exhaust standard by the purification treatment processes of removing dust, decomposing the dioxins, absorbing and neutralizing acid gases, removing heavy metals, deeply removing dust and the like.

The invention discloses a method for planting lawn in saline-alkali soil and relates to the fields of the saline-alkali soil control and planting technology. The method comprises the steps of: 1, soil arrangement; 2, establishment of a drainage canal; 3, straw application; 4, sand covering on a surface; 5, selection of grass seeds; 6, planting technology; 7, fertilizer application according to formulas; and 8, cultivation management. In the method, the bare surface of the saline-alkali soil can be covered effectively in short time, the water evaporation of the ground is reduced, and the saltness of the surface soil is reduced; the saline-alkali soil can be utilized comprehensively in a large area, and the vegetation structure of the saline-alkali soil can be adjusted; and the vegetation cover area of the saline-alkali soil is enlarged, and the ecological environment is protected and improved.

The invention relates to a method for carrying out anaerobic digestion on kitchen waste after heat-moisture treatment, belonging to the technical fields of harmless resource treatment and disposal of solid waste. The method comprises the following steps of: pre-treatment, high-temperature heat-moisture treatment, de-oiling, anaerobic digestion, biogas residue dehydration treatment of the kitchen waste, and the like. The method disclosed by the invention has the following advantages that: (1) the kitchen waste ia sterilized before the anaerobic digestion; (2) the kitchen waste can be effectively de-oiled and the occurrence of oil acidification is prevented so that the follow-up anaerobic digestion process is more stable and the oil recovery is improved; and (3) salt content in the kitchen can be effectively desalinated so that the salt content in the biogas residue is decreased and the treated kitchen waste can be used as a good soil conditioner.

A method for treating a wastewater stream containing organic material or inorganic material comprising passing the wastewater stream to an anode or a cathode of a bioelectrochemical system to thereby alter the pH of the wastewater stream to: a) reduce the pH of the stream passed to the anode to minimise or suppress precipitation of dissolved cations; or b) increase the pH of the stream passed to the cathode to produce an alkaline stream; or c) reduce the pH of the stream passed to the anode to produce an acid containing stream. In one embodiment, a caustic soda solution is produced at the cathode and recovered for storage and subsequent use.

The invention relates to a micromolecule walnut peptide and a preparation method thereof. The preparation method sequentially comprises the following steps of protein extraction, twice enzymolysis, filtering, purification, concentration and drying. In the twice enzymolysis process, alkaline protease with the mass being 1-3% that of the walnut protein is added into a walnut protein extracting solution for once enzymolysis; enzyme deactivation is performed on a once enzymolysis solution after the once enzymolysis is finished; one or more kinds of proteinase including the flavored proteinase, the neutral proteinase and the papain with the mass being 1-3% that of the walnut protein are added after the once enzymolysis solution obtained after enzyme deactivation is performed is cooled for secondary enzymolysis. According to the preparation method, the twice enzymolysis method is adopted, due to the specificity of the structure of the walnut protein structure, sufficient enzymolysis cannot be performed on the walnut protein through enzymolysis of one proteinase, and the twice enzymolysis method is adopted for ensuring that the enzymolysis is brought into play on the most suitable condition of each proteinase, and therefore the obtained walnut peptide content is high.

The invention discloses a coal gasification wastewater treatment process, which comprises the following steps of: performing adsorption treatment in a primary adsorption tank; performing sedimentation treatment in a first sedimentation tank; performing biochemical treatment in a first biochemical unit; performing adsorption treatment in a secondary adsorption tank; performing sedimentation treatment in a second sedimentation tank; performing biochemical treatment in a second biochemical unit; and filtering and discharging. The coal gasification wastewater treatment process solves the technical problem that active carbon is added into an active sludge aeration tank to influence the effects of the biochemical treatment and the adsorption treatment in the conventional coal gasification wastewater treatment process, has the advantages of independent adsorption and biochemical treatment, combined arrangement, concise process, high treatment efficiency, no increase of salt content and stable operation, and is particularly suitable for treating coal gasification wastewater.

The invention relates to the field of meat product processing, and particularly relates to a preserved meat processing method. The preserved meat processing method can lower the content of benzopyrene in a preserved meat product by selecting and controlling the smoking temperature, humidity and smoking materials in the smoking step. The processing method provided by the invention can improve the preserved meat pickling temperature properly by using nisin and biological preservatives to shorten the pickling time from 40 days of the conventional art to 15 days, thereby preventing meat deterioration in the pickling process, improving preservation effect of preserved meat, and improving work efficiency.

The invention relates to a device and a method for improving a saline land, wherein, the device comprises an isolation layer arranged on the partial periphery of an afforestation-waiting area, and a main blind drain and an auxiliary blind drain used for draining salt and alkali and arranged above the critical water level in the afforestation-waiting area, and the water outlets of the main blind drain and the auxiliary blind drain lead to a water-collecting well, the level surface of which is lower than the blind drains. The method comprises the flowing steps: arranging the isolation layer, laying the blind drains, constructing the water-collecting well, and improving physical and chemical soil properties. The invention has the advantages that the invention can fully use various solid wastes as main materials available to improve the saline land and conduct the improvement on the saline land through the combination of physical, chemical, biological methods; the various solid wastes can be used for constructing the main blind drain, the auxiliary blind drain and the water collecting well, and controlling the water table; a tree microarea is planted, physical and chemical soil properties on a surface layer are improved, and the salt content of the soil is reduced; and indigenous plants and new plant species with the saline-alkali resistance are selected for being planted, and the forestry afforestation and the landscaping are achieved through the post-stage nursing, long-term salinity control and alkaline control measures.

The invention discloses a method for treating coal gasification wastewater. The method comprises steps of: (1) lime softening by first adding lime milk to the coal gasification wastewater to conduct chemical precipitation on calcium salt and magnesium salt with the lime milk, standing the precipitation and filtering an supernatant; (2) ozone oxidation by sending the wastewater filtered in the step (1) into an ozone oxidation device for treatment; (3) MBBR treatment by sending the wastewater subjected to ozone oxidation into an MBBR for treatment; (4) coarse filtration; (5) continuous membrane filtration or ultrafiltration; (6) reverse osmosis; and (7) multi-effect evaporation by conducting multi-effect evaporation on the concentrate obtained by reverse osmosis treatment, and further crystallizing the concentrate obtained by multi-effect evaporation. The method of the invention can effectively remove the main pollutants such as COD, ammonia nitrogen and chroma in coal gasification wastewater, can also greatly reduce the salt content of the wastewater, ensure the efficient and long-term running of the double membranes, and achieve zero discharge of coal gasification wastewater.

The invention discloses a supercritical water oxidization treatment system for high-salinity organic waste water. The high-salinity waste water is subjected to cooling crystallization through cold energy of liquid oxygen to reduce mass concentration of inorganic salt in the waste water; a large amount of solid salt grains separated out from the waste water are removed by using a hydraulic cyclone device under a supercritical water condition to effectively prevent a subsequent pipeline and a reactor of the hydraulic cyclone device from plugging; and a desalting device is arranged at the lower part of the hydraulic cyclone device to continuously remove the inorganic salt from the system. In addition, excessive oxygen and CO2 product gas are recovered through a separation recovery part; the reaction time and the reaction temperature of supercritical water oxidization are reduced through arranging a simple subsequent treatment unit; and the system recovers heat energy of the reacted high-temperature fluid in a steam mode through the arrangement of a water softening device, so that the operation cost of the system is reduced. The system can be widely applied to the innocent treatment process of the high-salinity organic waste water.

The invention discloses a method for improving saline-alkali soil. The method includes selecting saline-alkali soil improvement fertilizer comprising coal with not less than 40% of humic acid, organic farmyard manure, rhizobium manure and fulvic acid potassium; ploughing the soil and applying the saline-alkali soil improvement fertilizer; applying base fertilizer; irrigating the soil; soaking rice seeds in warm water until the seeds are cracked, sowing the seeds after water in the field evaporates and the soil layer is exposed, and irrigating the soil after the rice seeds take root; performing topdressing, and applying the saline-alkali soil improvement fertilizer and earing nourishing fertilizer according to seedling conditions, water quality and soil quality. The method has the advantages that salt-alkali resistant rice varieties are combined with the saline-alkali soil improvement fertilizer organically, the saline-alkali soil improvement fertilizer can meet nutrition requirements for rice growth, reasonable matching is achieved, raw materials used are from extensive minerals and industrial and agricultural waste, low cost and high pertinence are realized, improvement cost is reduced, and technical popularization and promotion are benefited.

A method for preparing low-salt preserved bean curd comprises following steps: (1) sterilizing the bean curd prepared from soybean material and cooling to room temperature; (2) inoculating mold and fermenting for 24 to 48 hours; (3) adding an enzyme preparation to promote maturation, fermenting at 40 to 55 DEG C for 5 to 7 days; and (4) blending, properly packaging and sterilizing after maturation of the preserved bean curd to obtain low-salt preserved bean curd paste or pieces. The method shortens the preparation cycle of preserved bean curd, improves the product quality, and lowers the salt content in the preserved bean curd product, thus establishing the foundation for the quality improvement of conventional preserved bean curd and the modern industrial production.

The invention provides an improvement method of saline alkali soil in North China areas. The method lies in that a soil improvement agent with an application rate of 300 to 400 kg / hm<2> is applied in saline alkali soil, and the applied soil improvement agent comprises the following components in parts by weight: 45 to 50 parts of a mixture of humic acid and phospho gypsum, 8 to 10 parts of natural zeolite, 10 to 15 parts of straw powder, 15 to 20 parts of wormcast, 15 to 25 parts of a mixture of spartina alterniflora and sheep manure and 5 to 8 parts of diatomaceous earth. According to the improvement method of the saline alkali soil in North China areas, the PH value of the saline alkali soil treated through adopting the method is reduced by 0.85 above, the organic content of the soil is increased by 60% to 70%, and the crop yield is increased by 8.5% to 17.2%.

The invention discloses a method for improving moderate saline-alkali soil and planting pasture, which comprise the following steps of: (1) excavating ditches to eliminate alkali: irrigating the ditches or waiting for raining to irrigate the ditches so as to promote salt in the soil to permeate into deep soil along with water, and reducing the salt in the plough layer so as to reduce the salt content of the soil; (2) irrigating to reduce salt: reducing salt by directly irrigating salt water in winter and flooding fresh water in spring; (3) applying fertilizers: after irrigating fresh water in spring, and applying fertilizers to the depth of 20-30 cm according to the fertilizing amount of 180-220 kg per acre; (4) sowing pasture: sowing pasture according to the sowing amount of 0.5-1 kg per acre; and (5) returning straw to soil: returning pasture straw to soil in autumn. In the invention, the salt content of the saline-alkali soil can be reduced in a way of irrigating to reduce salt, the improved saline-alkali soil can be used for plating various kinds of pasture and has high yield and long lasting effect, and sustainable economical benefits and ecological benefits can be obtained for long term.

The invention relates to a method for processing waster water by fenton oxidation, comprising the following steps: (1) enabling alkaline waste water to be processed to enter a flocculation pond so as to be flocculated and precipitated; (2) enabling the flocculated waste water to enter an oxidation pond so as to be oxidized for fenton oxidation reaction; (3) enabling oxidized waste water to enter a precipitation pond so as to be precipitated; (4) adding alkali to supernatant discharged from precipitated waste water to adjust the pH value of the waste water till the waste waster is neutralized, and directly discharging the waste waster or processing the waste water by the next step; and (5) enabling acid precipitate obtained in the step (4) to return to a mixer in a refluxing way to be mixed with total or part of waste water to be processed. With the method for processing waster water through fenton oxidation, the consumption of acid and the alkali can be greatly reduced and content of salt in the waste water can be reduced so that the waste water processing effect is obviously improved.

The invention provides a saline-alkali soil brackish water film mulching drip irrigation processing tomato planting method, which comprises the following steps: (1) planting processed tomatoes: planting the processed tomatoes by adopting a manner of wide rows and high ridges, and mulching a white film above plants; (2) laying out a drip irrigation system, wherein an interval b between the drip irrigation systems is 48 to 52 cm; an interval a between drip emitters is 0.25 to 0.35 m; (3) carrying out high-frequency and small fixed amount water irrigation in a growing period of the processed tomatoes: alternatively irrigating brackish water and fresh water, and adopting the fresh water for irrigation in a seedling stage, and no irrigation in a red-mature period. The invention puts forward a cultivation method taking the brackish water and saline-alkali soil as targets in combination with the realities of shortage of fresh water resources, abundant underground brackish water resources and serious soil salinization in an arid region and a semi-arid region, and not only moisture is enabled to be held up within a field microcirculation of soil-and-film, deep seepage losses of the moisture are greatly reduced, but also under-film soil evaporation is remarkably lowered, sources of soil secondary salinization are cut off and the surface accumulation of salt is eliminated.

The invention provides a preparation method of symmetric and asymmetric toluylene triazine liquid fluorescent brightener composite expressed by the structural formulas (III), (VI) and (V), comprisingthe following steps: taking cyanuric chloride, sulfanilic acid, 4, 4-diaminobenzil-2, 2-disulfonic acid, morpholine and diethanol amine as raw materials; synthesizing by the three steps of reaction; and desalinating and filtering by means of nanofiltration membrane filtration. The liquid fluorescent brightener composite has a built synergistic effect and better brightening effect than a single composite; and the method not only can improve the quality of the fluorescent brightener, but also can reduce the consumption of amounts of raw materials, and greatly elevates product yield and quality.

The invention relates to a low-salt pickled fermented Allium chinense and a processing method thereof. The pickled fermented Allium chinense is prepared by the steps of: taking a fresh Allium chinense; removing fibrous roots and washing; adding table salt, drinking water, glacial acetic acid, citric acid and sodium metabisulfite to carry out primary fermentation for 10 to 12 days; taking the fermented Allium chinense; adding the table salt, the drinking water, the glacial acetic acid and the citric acid to carry out secondary fermentation for 30 to 60 days; proportionally mixing the fermented Allium chinense in the second time with soup; then adding dried red pepper rings; and sterilizing and cooling. The product of the invention has stable quality and low content of sulfur dioxide with preferable preservation of color, brittleness and nutritious elements of the Allium chinense, and has longer shelf life.

The invention discloses an economical and quick method for planting salinized soil lawn, and relates to the field of the treatment of salinized soil. The method comprises the following steps of: (1) tidying the salinized soil; (2) building a drainage canal; (3) applying organic fertilizer, silver sand and base fertilizer; (4) building ridges, and desalting in an elution way; (5) selecting the grass variety; (6) building and planting a grass blanket; (7) transplanting the grass blanket; and (8) managing the cultivation. According to the method, the structure of the salinized soil can be effectively improved, the naked surface of the salinized soil can be covered, the evaporation of water on the surface of the ground can be reduced, and the salt content of surface soil can be reduced; the method is low in planting cost, the salinized soil can be comprehensively used in large area, and the structure of the plant of the salinized soil can be adjusted; and the plant cover area of the salinized soil can be enlarged, and the ecological environment can be protected and improved.