1467results 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 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.

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 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.

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 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 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 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 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 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.