31results about How to "Low effective utilization" patented technology

The invention provides a dephosphorization and denitrification, mud decrement and phosphorus recovery integrated sewage treatment device and a method thereof. The method adopts processes of hydrolysis acidification, multilevel series contact aeration and dephosphorization and denitrification A<2>/O of continuous flow, and comprises the following steps that: a hydrolysis acidification unit is used to treat raw sewage and a little anaerobic phosphorus releasing sludge to realize conversion of VFA; clear solution rich in the VFA after hydrolyzed supplies rich carbon sources for a subsequent dephosphorization and denitrification A<2>/O unit to reinforce synchronous dephosphorization and denitrification; and low concentration phosphorus in the sewage is enriched in the anaerobic phosphorus releasing sewage by the excessive phosphorus absorption capability of a phosphate accumulating organism, and the minor part of phosphorus enriched sewage is drained to carry out chemical phosphorus solidification. The dephosphorization mode can significantly reduce sewage quantity of chemical dephosphorization, improve the utility ratio of a dephosphorizing medicament, reduce dosage of the medicament, has high phosphorous amount in the obtained chemical sludge, and realizes recycle of the middle and low concentration phosphorus in urban sewage by the mode of non residue sludge under a condition of low cost. Sludge decrement can be realized through biofacies separation of a multilevel series contact aeration tank and the function of microorganism predation grade by grade.

The invention provides a fume purification system based on advanced oxygenation combining wet scrubbing. The system is a combustion and exhaust system formed by a boiler, an ozone generator, a stirrer, a swirl nozzle, a reactor, a gas-liquid absorption tower and a chimney, wherein fume containing sulfur oxide, nitric oxide and mercury generated by combustion of the boiler and O3 generated by the ozone generator enter the stirrer together, are mixed, flow through the swirl nozzle, and are sprayed into the reactor with an ultraviolet lamp tube; and hydroxyl radical (.OH) with strong oxidability generated under excitation of ultraviolet radiation, SO2 in the fume, indissoluble NO and HgO are oxidized into gaseous products with higher dissolubility and enter the gas-liquid absorption tower to be absorbed and removed by water; Hg<2+> generated in the gas-liquid absorption tower captures and retrieves mercuric sulfide by adding sulfidion S<2-> in equal molar ratio; and the residual sulfuric acid and nitric acid mixed solution is used as an industrial raw material for recycling, and the cleaned fume enters the chimney so as to be exhausted.

The invention relates to a novel special water purifier of a drinking water machine, comprising a raw water bucket, a purified water bucket, a filter element, an upper float valve and a lower float valve; the upper float valve is arranged in the purified water bucket and is used for controlling the highest water level in the purified water bucket; the lower float valve is connected with the outlet of the bottom of the purified water bucket and is used for controlling the highest water level in a water bucket of the drinking water machine; the raw water bucket is arranged above the purified water bucket; the filter element is fixedly connected to the bottom of the raw water bucket, and the filtering material in the filter element is made of micro-porous ceramics or hollow fiber; the water purification technique is as follows: powdery water treatment material is firstly blended with raw water and then the filter element is used for filtering. Compared with the special water purifier of a drinking water machine in the prior art, the novel special water purifier of the drinking water machine has the advantages of more humanized operation of the water purifier, high volume utilization rate of the water purifier, saving material, fresh water quality, low gravity center, good stability, high effective utilization rate of the water treatment material, saving the water treatment material resources, more complete purification and more reliable quality of yielding water.

The invention discloses compound feed for piglets and a preparation method and application thereof and belongs to the technical field of piglet feed processing. The compound feed for the piglets comprises, by mass, 60-70 parts of corn, 10-20 parts of bean pulp, 5-10 parts of extruded soybeans, 2-6 parts of steam fish meal, 1-5 parts of lactose, 1-4 parts of rice bran meal, 0.2-1.2 parts of wheat bran, 0.5-1 part of beet pulp, 0.3-1 part of rice hull powder, 0.03-0.09 part of multi-vitamin, 0.2-0.6 part of acidifying agents, 1.7-4 parts of phytase, 0.2-0.6 part of L-lysine, 0.01-0.05 part of DL-methionine, 0.01-1 part of mould inhibitors, 0.1-0.15 part of zinc oxide, 0.2-0.6 part of compound microelement, 0.5-2 parts of saccharomycete agents and the like. According to the compound feed for the piglets, the protein level of the piglets can be improved, and the digestibility and the immunity of the piglets are improved; and meanwhile, the effective digestibility of the piglets on nutrient substances such as zinc, phosphorus, the microelements, protein and amylum is improved, and pollution is reduced.

The invention relates to a method for preparing a transmittance grating. The method is characterized by comprising the following steps: step 1, preparing a porous alumina membrane with a three-dimensional laminar periodic structure by adopting an aluminum sheet with purity of more than 99.99 percent; step 2, washing the porous alumina membrane obtained in the step 1 with ethanol, drying the porous alumina membrane, and coating photosensitive resist with thickness of between 0.8 and 1.2 micrometers on the porous alumina membrane by a spin coater; step 3, drying the porous alumina membrane obtained in the step 2, and scribing parallel line structures with equal distance and equal width on the photosensitive resist on the surface of the porous alumina membrane by an ultraviolet photoetching machine; step 4, soaking the porous alumina membrane which is provided with the parallel line structures scribed on the surface and obtained in the step 3 in phosphoric acid solution for chemical etching, and transferring the parallel line structures scribed on the surface of the porous alumina membrane to the inside of the membrane; step 5, erasing the photosensitive resist left on the surface of the porous alumina membrane with organic solvent, washing and drying the membrane.

The invention discloses a two-stage catalytic gasoline upgrading method for increasing gasoline yield and producing ultra-low sulfur gasoline. The method comprises the following steps: (1) a mixture of liquefied petroleum gas and full-range FCC (fluid catalytic cracking) gasoline is mixed with hydrogen, and the mixture firstly enters an alkylation fixed bed reactor to undergo an alkylation reaction under the action of an alkylation catalyst so as to convert most C4 hydrocarbon and parts of olefins in the FCC gasoline to C8-C12 isoparaffin; and (2) a reaction mixture obtained from the step (1) and hydrogen are mixed to simultaneously undergo hydrodesulfurization of a sulfocompound and alkane and olefin cracking, congruence, cyclization and aromatization reaction under the action of hydrodesulfurization/aromatization catalysts so as to produce upgraded ultra-low sulfur gasoline. The invention provides a gasoline upgrading method which is used to produce ultra-low sulfur gasoline by using high-sulfur and high-olefin FCC gasoline as a raw material and simultaneously greatly reduce gasoline yield loss of and octane number loss.

The invention belongs to the technical field of environmental chemistry, and particularly relates to a clay mineral loaded nanometer zero valent iron, and a preparation method and use thereof. According to the clay mineral loaded nanometer zero valent iron, and the preparation method and the use thereof, tobacco stems and walnut green seedcases are used for preparing plant extracts, high toxicityand expensive sodium borohydride is replaced as reducing agents, and the clay mineral loaded nanometer zero valent iron is prepared; at the same time, the fact that the clay mineral loaded nanometer zero valent iron can effectively remove residues of anabasin pesticides in water is found for the first time, and the degradation effect is better than that of clay mineral, nanometer zero valent ironand clay mineral loaded nanometer zero valent iron prepared by conventional methods; and degradation conditions of the anabasin pesticides on the clay minerals loaded nanometer zero valent iron are optimized. According to the clay mineral loaded nanometer zero valent iron, and the preparation method and the use thereof, preparation conditions and the degradation conditions of the clay mineral loaded nanometer zero valent iron are optimized, great significance to diversified utilization of agricultural production wastes, reduction of production costs and reduction of environmental pollution areprovided; and at the same time, the reaction process is simple, and good market prospects in remediation and treatment of anabasine pesticide pollution environments are provided.

The invention discloses a veterinary Shuanghuanglian oral liquid preparation processed by using probiotics. Secondary strains of functional microbes are inoculated to fermentation liquid of a Shuanghuanglian formula, and deep high-density fermentation of liquid is performed at normal temperature under normal pressure by using the life action of the functional microbes to sufficiently and effectively dissolve and convert active ingredients in the Shuanghuanglian formula, thus obtaining the Shuanghuanglian oral liquid biological preparation. The invention also provides a preparation method of the veterinary Shuanghuanglian oral liquid preparation at the same time. The Shuanghuanglian formula is screened as a Chinese medicinal formula, and the antibacterial, antivirus and heat clearing active ingredients included in the Shuanghuanglian formula are furthest extracted by using the functional microbes including lactobacillus acidophilus and candida utilis, so that the curative effect is enhanced. Meanwhile, the lactobacillus acidophilus and the candida utilis can play a role in maintaining and regulating the balance of gastrointestinal microbiota of animals.

The invention discloses a middle-arranged double-axial-flow centrifugal fan. The centrifugal fan comprises a double-output shaft motor, an air duct, centrifugal impellers and fans, wherein the double-output shaft motor is arranged at the central position of an air inlet of the air duct, and the centrifugal impellers and the fans which rotate coaxially are arranged in the output shaft directions atthe two sides of the double-output shaft motor in sequence. According to the centrifugal fan, the double-shaft motor, the impellers and the fans which are arranged in the middle of the air duct are matched with any other to enable air entering of two sides of the air duct to be uniform.

The invention discloses an automatic distribution equipment information updating method and system in a network-free state, and the method comprises the following steps that a network server regularlyassigns one or two distribution robots to form a touring interconnection group, and each distribution equipment updates the equipment information in a position state table in real time; when the network is disconnected, each distribution equipment builds a plurality of interconnection groups based on the near field communication technology, and selects the master equipment and the slave equipmentin the interconnection groups; after the network is disconnected, the itinerant interconnection groups collect and update the position state table according to a preset itinerant route, and the master equipment of each interconnection group is responsible for synchronously updating each distribution equipment in the interconnection group; and after the network is recovered, the network server arranges the interconnection group information uploaded by all the master equipment and issues the interconnection group information to each distribution equipment for updating, and each distribution equipment recovers the normal use state. According to the invention, the automatic distribution equipment can still keep basic information intercommunication after network disconnection, and customers can continue to use the distribution system according to limited non-instant information.

The invention discloses a safe elevator car. An elevator control cabinet is arranged in the elevator car, an elevator lower beam is arranged at the bottom of the elevator car, and a counterweight mechanism is connected to the elevator car; the counterweight mechanism comprises a counterweight filler, the counterweight filler is connected to the elevator car through a steel rope, the counterweightfiller is connected to a counterweight guide rail through a counterweight guide shoe, the counterweight guide rail is fixed to an elevator hoistway through a counterweight bracket, the elevator control cabinet comprises a bottom box and a cabinet door, the bottom box comprises a bottom plate, one side of the bottom plate is bended forward to form a first plate while the other side of the bottom plate is bended forward and inward to form a second plate; the cabinet door comprises a panel, one side of the panel is bended backward to form a third plate while the other side of the panel is bendedbackward to form a fourth plate, a notch is formed along the fourth plate, and a hinge is arranged in the notch. By improving the structures of the elevator control cabinet, the elevator lower beam and the counterweight bracket at the same time, the elevator car has the advantages of being easy to maintain, high in safety, high in control efficiency and low in cost.

The invention discloses a method for cultivating conventional japonica rice blanket-shaped machine-transplanted tillered seedlings. The method specifically comprises the following steps of (1) expanding a rice seedling bed; (2) conducting chemical controlling before sowing; (3) conducting strict controlling over the sowing amount; (4) conducting early sowing, (5) applying seedbed fertilizer, (6) traying coverage, (7) water control, (8) conducting chemical control in the seedling stage, and (9) applying grafting fertilizer. Aiming at the technical defects of machine transplanting of densely-sown seedlings and the cultivation problem of the blanket-shaped machine-transplanted large seedlings, the the conventional japonica rice blanket-shaped mechanical-transplanted tillered large seedlings are cultivated by the measures of strictly controlling the seeding quantity, carrying out chemical control twice, regulating and controlling the seedbed fertilizer and nutrient supply through water andfertilizer coupling and the like by means of the method. The method has the advantages that (1) when transplanting is carried out, seedling blocks are tightly coiled, wherein 1480-1880 plants are coiled into one tray, the leaf age of main stems of the seedlings is 5.0-6.3, the height of the seedlings is 20-25 cm, 10%-20% of the plants have tillers, and the dry weight of one hundred plants of theparts above the ground is 5.0-7.0 g; (2) the utilization rates of seedbed fertilizer nitrogen and seeds reach 35% or above and 65% or above respectively; and (3) after planting, reviving and living are fast, and the field void rate is below 5.0%.

The invention discloses a lens for an LED illuminating lamp. The lens comprises a lens platform (1) and a lens body (2) arranged on the lens platform (1); a circuit board (12) is arranged at the lower end of the lens platform (1). The lens is characterized in that the lens body (2) comprises a light emitting part (7) and a clamping part (8); the light emitting part (7) is positioned at the upper end of the clamping part (8); the clamping part (8) is clamped on the lens platform (1); the light emitting part (7) comprises first curved surfaces (3) arranged at both the left lateral surface and the right lateral surface of the light emitting part (7) and second curved surfaces arranged at both the front lateral surface and the back lateral surface of the light emitting part (7); the profile of projections of the first curved surfaces (3) and the second curved surfaces (4) on the lens platform (1) is in a shape of an oval; a first included angle alpha formed by tangent lines of the two first curved surfaces (3) is 70 degrees to 80 degrees. The lens for LED illumination, provided by the invention is large in lens emitting angle, large in illuminating range, and high in effective utilization rate of lights.

The invention relates to a surface active agent containing humic acid. The surface active agent containing humic acid comprises, in weight percent, 20%-50% of polyethylether modified trisiloxane and 50%-70% of compounds containing humic acid. A preparation method of the surface active agent containing the humic acid includes the step: uniformly mixing the 20%-50% of polyethylether modified trisiloxane and 50%-70% of compounds containing the humic acid to obtain the surface active agent containing the humic acid. The surface active agent containing the humic acid can overcome the shortcomings of low surface activity of fulvic acid, and the effective utilization rate and the effect of the fulvic acid are increased. The surface active agent containing the humic acid, pesticides, fertilizers and the like are compounded, the delivery quantity of the pesticides, the fertilizers and the like can be reduced, and the using effects of the pesticides, the fertilizers and the like are remarkably improved.