316results about How to "Improve exchange capacity" patented technology

The invention relates to a multielement combined purification preparation process of a refined tannic acid serie and a combined preparation of the products. Gallnut or tara ultrarfine grinding material or industrial tannic acid is used as raw material and the multielement combined purification process, equipment and technologies such as extraction, freezing separation, solvent extraction, resin column separation, activated carbon absorption decoloring separation, complexation separation, membrane separation and refining separation to prepare a serie of tannic acid multielement products such as industrial tannic acid, dye tannic acid, beer tannic acid, edible tannic acid, medicinal tannic acid, reagent tannic acid, high purity tannic acid and electronic grade tannic acid, thus the integration and innovation of the green, low-carbon, environmentally friendly and energy-saving industrialized technology that tannic acid raw material is refined and processed deeply can be effectively realized. The combined technology is adopted to effectively realize the integration and innovation of the high, sophisticated, deep and sharp integrated technology that the raw material is used to prepare the serie of refined tannic acid multielement products, which is an achievement of the high and innovative technologies.

The invention discloses a method for preparing a nitrogen and phosphorus removal adsorbent from sludge of a water plant. The method comprises steps as follows: dewatered aluminum sludge is air-dried, ground, sieved, dried, cooled and then placed in a muffle furnace to be roasted at the temperature of 300 DEG C for 4 h, and activated aluminum sludge is obtained; powdery activated carbon, the activated aluminum sludge and zeolite powder are mixed uniformly in proportion, 100 mL of NaOH with the mass concentration being 2%-3% is added, the mixture is vibrated and modified for 12 h, then dried and taken out to be naturally aged for 2 h, bentonite serving as an adhesive is added for granulation, adsorbent particles are placed in the muffle furnace to be roasted at the temperature of 400 DEG C for 4 h, cooled, washed to be neutral with deionized water and dried at the temperature of 105 DEG C for 2 h, and the adsorbent is obtained. The adsorption material capable of adsorbing nitrogen and phosphorus simultaneously is prepared from the aluminum sludge containing activated carbon and zeolite, the adsorption effect of the aluminum sludge on ammonium and nitrogen in a water body is improved, and good phosphate adsorption performance is kept.

The invention discloses a method for producing a high-purity potassium chloride solution for preparation of potassium carbonate and co-producing low sodium salt. The high-purity potassium chloride solution for producing potassium carbonate is prepared from agricultural grade potassium chloride serving as a raw material by the steps of rinsing, dissolving, removing impurities, settling, filtering and the like, wherein the Ca<2+> content is less than or equal to 0.0001%, the Mg<2+> content is less than or equal to 0.0001%, the Fe content is less than or equal to 0.0001%, the content of suspended solids (SS) is less than or equal to 0.1 mg/L, pH is 12+/-0.2, and the potassium chloride content is more than or equal to 99.0%, so the quality standard of an ion exchange method for producing the potassium carbonate is complete met. Potassium chloride rinsing liquid and leachate is recycled, evaporated and concentrated, and subjected to crystallization separation according to the dissolution characteristics of the potassium chloride and sodium chloride, the potassium chloride obtained by recycling can serve as the raw materials to be reused, and the mixture containing the potassium chloride and the sodium chloride meets the quality requirement of low sodium salt.

The invention relates to a process for producing an organo-mineral fertilizer from vinasse, filter cake and generally boiler ashes, as byproducts of the sugar and/or alcohol manufacture and, optionally, complemented with fertilizer sources composed of macronutrients (primary and secondary) and micronutrients. The process comprises, in a preferred form of the invention, the steps of: concentrating the vinasse until about 65% of solids (p/p); mixing and dissolving the fertilizer elements in the concentrated vinasse; mixing and drying the filter cake and ashes in a hot gas stream obtained by burning bagasse or fine straw; impregnating this dry mixture with the concentrated vinasse mixture and the added fertilizer agents; and, finally, drying and granulating the final formulated mixture. The end product is a granular solid containing N, P, K, Ca, S, Mg and micronutrients, according to the previously programmed formulation. In the other form of the invention, the same process is effected, but without adding the fertilizer elements.

A contactless power transfer system comprising a power exchanging coil configured to exchange power via a magnetic field, a field focusing element for focusing the magnetic field, and a compensation coil having a resonance frequency different from a resonance frequency of the field focusing element for matching an impedance of the contactless power transfer system and compensating a change in phase resulting from a misalignment in the contactless power transfer system.

The invention discloses a composite ionic adsorption material which is a spherical particle prepared by taking 80-85 parts of zeolitefine powder subjected to water bath modification by 0.8-1.0mol/L NaCl solution, 10-20 parts of medical stone fine powder, and 10-20 parts of kieselguhr fine powder as base materials, and 6 parts of activated carbon powder as a pore former and firing, wherein the diameter of the spherical particle is 2-12mm, and the pore volume of the spherical particle is 0.645-0.650 cm<3>/g. Activated zeolite is added to medical stone and kieselguhr to prepare the novel compound ionic material, and the zeolite, the medical stone and the kieselguhr jointly exert adsorption effects. The salt modified zeolite and medical stone increase an ionic exchange space and internal surface area, so that the adsorption capacity of the prepared composite adsorption material is further improved, and a better adsorption effect is achieved.

The invention provides a stormproof dual-net wall close type net cage, and belongs to the field of aquaculture net cages. The stormproof dual-net wall close type net cage comprises a net cage frame, an aquaculture net is hung on the net cage frame, and the net cage frame is uniformly connected with connecting arms, an outer layer aquaculture net and an inner layer aquaculture net are suspended on the connecting arms, and the inner layer aquaculture net is sleeved in the external layer aquaculture net; water supply equipment is arranged on the net cage frame, a lift pump is arranged on the water supply equipment, and a water pumping pipe of the lift pump extends into the seawater out of the net cage; a water outlet of the lift pump is connected with a water inlet pipe, the water inlet pipe extends into the net cage; the water outlet is arranged on the water inlet pipe, and the water outlet and the net cage frame tangent line at a corresponding position thereof present an angle at 30 degree; the bottom of each of the outer layer aquaculture net and the inner layer aquaculture net is connected with a dirt collecting device, thereby effectively avoiding the conditions that the fish in the net cage is injured due to larger storm and the net cage is damaged in the large storm, and the water body exchange capacity is strong.

The invention discloses an orange peel dregs seedling raising substrate and a preparation method thereof, and belongs to the technical field of preparation of seedling raising substrates. Fermented orange peel dregs subjected to microorganism fermentation de-acidification, composite enzyme preparation degradation and microorganism liquid bacterial agent composting fermentation are used as a raw material; shaximiao group purple soil is used for replacing non-renewable resources such as turf, perlite, and vermiculite to scientifically compound a soil insecticide so as to obtain the seedling raising substrate which is free of weeds and pests, good in physical property, reasonable in hygroscopicity, excellent in air-conductivity, reasonable in PH value, strong in ion exchange capacity, balanced in nutrition, high in seedling emerging rate, and regular and strong in seedlings. The preparation method disclosed by the invention is simple in process and low in requirement on equipment, the orange peel dregs are fermented for 12-15 days, the pest killing and sterilization of the seedling raising substrate is 5-7 days at most, the preparation method saves 18-20 days as compared with the prior art, not only is the raw material cost of the seedling raising substrate greatly lowered, but also the production period is shortened, and the preparation method is not restricted by factors such as weather, and can achieve mass production at any time.

The invention relates to a designing method for improving the encircled-type harbor basin water body exchanging capacity. The designing method is characterized by mainly comprising the steps that 1 a plane two-dimensional convection and diffusion mathematical model is established; 2 the harbor basin water body exchanging capacity is evaluated; 3 the encircled-type harbor basin water body exchanging mechanism is analyzed; 4 engineering proposal calculation is conducted, and main factors influencing water body exchanging function improvement are analyzed; 5 an engineering improvement scheme capable of improving the encircled-type harbor basin water body exchanging capacity is formed. According to the designing method, the relation between convection and diffusion and the main factors influencing harbor basin water exchanging can be obtained by calculating harbor basin Peclet number distribution, therefore, the mechanism for improving the encircled-type harbor basin water body exchanging capacity is disclosed, optimization design can be conducted on a scheme for arranging a water body exchanging channel, and accordingly, the harbor basin water body exchanging capacity is improved.

The invention discloses compounded bee pollen and a preparation method thereof. Bee pollen is adopted as a main raw material, natural plant source enzymes with high enzyme activity and rich enzyme systems and pupa intestinal tract extract including queen bee larva and drone pupa saliva with the most original bee pollen forming process and the most complete enzyme systems and intestinal tract enzyme systems are scientifically compounded, the microwave high-temperature instant puffing technology and the probiotic fermentation technology are adopted, fast, effective and deep wall breaking is carried out on the bee pollen through special biological enzymolysis, microwave high-temperature instant low-temperature puffing and probiotic fermentation, wall-broken bee pollen is prepared and then is scientifically compounded with one or more functional auxiliary materials, the healthcare bee pollen with the high wall breaking rate, high efficiency, low cost and high functionality is prepared, and the natural flavor and nutritional ingredients of the bee pollen are kept to the maximum extent.

The invention discloses probiotic dry red wine and a preparation method thereof. The preparation method includes that dry red wine and rose flowers are used as raw materials, and low-temperature extraction technologies like high-voltage pulse electric field, microwave, ultrasound and biological enzymolysis are organically combined, so that functional substances and fragrant ingredients of the rose flowers can be retained to maximum extent; probiotics like functional Lactobacillus plantarum are used as fermentation agents, and temperature-variable fermentation and graded inoculation are adopted, probiotic multiplication and accumulation of functional metabolite can be realized to maximum extent, malic acid in the dry red wine can be further converted into lactic acid, acor of the dry red wine can be eliminated, and taste, healthcare function and wine stability of the dry red wine can be improved; the high-voltage pulse electric field, ultrasonic technology and peracetic acid are combined to accelerate aging, so that the probiotic dry red wine obtained has quality equivalent to that of existing fermented common dry red wine after aging for 8-10 years, and is good in aging effect, short in period and high in efficiency.

The adaptive program calling method for information exchange in heterogeneous environments comprises: converting the product model data into the object model then the extended mark language file; converting last file into neutral-format data flow by the extended mode list language to load into the knowledge base and realize the mapping between data and KB case. This invention reduces the development cycle to respond market change.

The invention provides a winter pond net cage intermediate culture method for stichopus japonicus larvae. The method comprises the steps of selecting a culture pond with a water depth of 1.8m-2m; erecting net cages, with the top surfaces of the net cages being 5cm-10cm lower than a water surface; making W-type adhering substances with 6 mesh-10 mesh polyethylene nets and distributing the adhering substances in the net cages uniformly; performing daily management of adjusting the water quality of pond water, and putting larvae in the pond at the end of October or at the beginning of November, with the stocking density being 0.5Kg per net cage to 0.7Kg per net cage; increasing light illumination in an icebound period in winter and monitoring under-ice water quality indexes; after ice melts, starting an oxygenation apparatus to promote vertical flow of water and improve the water quality environment; when larvae in the cages reach 250/kg-300/kg at the end of April, selling the larvae as commercial larvae for culture. The method can increase the culture space after the water is icebound, create the optimal environment for overwintering of sea cucumbers, greatly increase the effective usage area of adhering substances, reduce the production cost of larvae, basically guarantee all-weather production all year round, increase the culture survival rate and body wall production rate, and guarantee the quality of adult sea cucumbers.

The invention discloses a preparation method of an activated graphene oxide adsorbent for removing tetracycline. The preparation method comprises the following steps: according to percentage by mass, namely the ratio of purified graphite oxide to KOH powder of 1 to 4, grinding and uniformly mixing the purified graphite oxide and the KOH powder in an agate mortar so as to obtain mixed powder; adding the mixed powder to a ceramic pipe, then adding to a quartz tube furnace, calcining at 750 DEG C for 2h in N2 protective effect, then reducing temperature at temperature decreasing rate of 30 DEG C/min, and turning off nitrogen when the quartz tube furnace is cooled to room temperature so as to obtain the activated graphene oxide adsorbent for removing tetracycline. The activated graphene oxide adsorbent for removing tetracycline, disclosed by the invention, can improve the specific surface area and the hydrophilicity of the graphene oxide, and greatly improve the adsorption performance of a water solution to tetracycline. The preparation method disclosed by the invention is simple in process, and since a conventional chemical reagent is adopted in a preparing process, cost is saved.

The invention discloses a restoration agent and a preparation method thereof and a method using the restoration agent to restore heavy metal-polluted soil, and belongs to the technical field of restoration of heavy metal soil pollution. The restoration agent is prepared from the following raw materials of biochar, sepiolite, monocalcium phosphate, sugarcane residues, lime powder, longan peel, tartaric acid, hydroxyethyl triphosphate, potassium lignosulphonate, malic acid, chitosan and soybean straw. The restoration agent is prepared by the following steps of powder preparing, fermenting, powder drying and the like. The restoration agent has the advantages that the preparation technology is simple; when the restoration agent is used for restoring the heavy metal-polluted soil, the removal rate of mercury, cadmium, lead, arsenic and pyrene is increased.