379results about How to "High oxygen utilization" patented technology

The active sludge-biomembrane compounding integral sewage treating method includes the first leading the sewage to be treated to the anoxic area through stirring for mixing sewage to be treated and active sludge, the subsequent leading the sewage to aerobic area with stuffing for aeration treatment with combined active sludge and biomembrane, and final leading the sewage to the precipitation area for natural deposition to separate sludge and water, leading out purified water, reflowing the mixed sludge liquid to the anoxic area and draining the residual sludge. The present invention also relates to the corresponding sewage treating apparatus. The present invention has the advantages of high treating capacity, resistance to impact load, simple operation, etc. and is especially suitable for use in medium and small towns.

The present invention relates to a deep denitrification process and device for domestic sewage without additional carbon source. The present invention is a combination process composed of anaerobic acidification tank, micro-aeration vertical underflow wetland and horizontal underflow wetland. The specific process is as follows: The domestic sewage enters the anaerobic acidification tank; the effluent from the anaerobic tank enters the micro-aeration vertical subsurface flow wetland; the treated sewage from the micro-aeration vertical subsurface flow wetland enters the horizontal subsurface flow constructed wetland. The effluent from horizontal subsurface flow wetlands can be used to supplement static landscape water bodies and other purposes. The present invention controls the ratio of NH4+-N/NO3--N in the horizontal subsurface flow wetland influent to 1-1.4:1 through the adjustment of appropriate process parameters, and the actual BOD5/N is far lower than the theoretical value of denitrification BOD5/N Under these conditions, anaerobic ammonium oxidation can be stably realized in constructed wetlands, forming a low-cost, high-removal sewage deep denitrification process. Micro-aeration vertical flow wetlands + horizontal subsurface flow wetlands can be applied to sewage treatment plants. Advanced water treatment can also be used for decentralized domestic sewage treatment. The invention has the advantages of simple structure, low cost and convenient operation and maintenance, and can achieve a TN removal rate of over 95%, stable pollutant removal effect, and effluent water quality up to Class IV standard of surface water.

A high-temperature and aerobic composting method for solid wastes which adopts a vertical ventilation device relates to a high-temperature and aerobic composting method for the solid wastes. The composting method aims at solving the problems that in the aerobic fermentation process, the conventional bottom ventilation method causes obvious uneven fermentation at the upper part and the lower part of a stacking body in a fermentation device, thus quality stability and uniformity of the fermented product are affected. In the composting method, middle air distribution pipes are fixed in a fermentation tank arranged at the lower side of an inverted ventilating slot; both the bottom part and the middle part of the fermentation tank adopt intermittent ventilation type, the ventilation time is 5-30 minutes, intermittent time is 15-120 minutes and ventilation rate is 0.03-2m<3>/(min m<3> mixing materials). The composting method increases the contact area between air and materials; air direction forms a reverse rotational flow, which increases residence time of fresh air in the fermentation device, thus improving the mass transfer efficiency, and the operational cycle of a single fermentation is shortened by over 1/4.

The invention relates to an active composite suspended filler, which is applied to the technology of biochemical treatment of organic wastewater, and discloses a porous support filler formed by a carrier basic materials and functional assistant materials. The porous support filler is in a through-hole spheroidal body or a through-hole cylindrical body, and one layer of porous active powder material layer is bonded on an outer surface of the through-hole spheroidal body or the through-hole cylindrical body. The active composite suspended filler is an inorganic suspended filler, has an uneven surface and roughness height; and pores with different sizes are distributed on the filler and are shaped like a honeycomb. The filler not only has high adsorption performance on harmful substances and dissolved oxygen, but also can form different dissolving intensity, is beneficial to improving processing efficiency for removing COD (Chemical Oxygen Demand) and ammonia nitrogen, and will be a novel high-efficient filler.

The invention discloses a high-temperature aerobic fermentation process for sludge with low energy consumption and no pollution, and relates to the technology for aerobic fermentation treatment on dewatered sludge. The process is used for decontamination, stabilization and reduction treatment of town sewage sludge, sewage sludge, organic industrial wastewater sludge and organic sludge. In the process, the dewatered sludge and auxiliary materials are mixed, the mixture is crushed into composting particles with the diameter less than or equal to 20mm, the composting particles are evenly distributed into a pile with the height of 2m by a spreader, and the pile is covered by fermented decaying products to effectively reduce the odor emitted by the composting. A fermentation bin with two combined or separated bins is provided with a ventilation and oxygen supply system which is detachable, is easy to clear, prevents blockage and has even gas distribution, and a pile turning device inside; and the oxygen concentration, fermentation temperature, water ratio of the pile in the fermentation bin are controlled, so that sludge fermented products meet national standard. The process facilitates air supply and aerobic fermentation of the pile due to small diameter of the composting particles and the loose pile, has thorough fermentation of the particles of the sludge mixture, improves the quality of the sludge fermented products, makes the sludge fermented products meet the decontamination, stabilization and reduction index requirements specified by the national standard, and greatly saves electric energy consumption and reduces operating cost.

The invention relates to a film separating biology reactor to realize film pollution problem. The solid and liquid separating film component and the first non-bubble aeration biology film component are set in biochemical reaction vertically. The solid and liquid separating film component and the first non-bubble aeration biology film component are paralleling. The separating film component connects to water outlet pipeline, and the suction pump connects to water outlet pipeline in series. The invention is placed with solid liquid separating film alternating. The aerator pipe and distributing pipe are set between two films. It is benefit to fully mix organic pollutant and active sludge. It could effectively solve the film pollution problem.

A converter oxygen consumption prediction method based on grey prediction and a neural network combined model belongs to that technical field of oxygen prediction of converter in iron and steel enterprise. The oxygen consumption of a converter is predicted by analyzing the factors that affect oxygen consumption. Based on the nonlinear computational characteristics of Elman feedback neural network,the grey system theory can not only accelerate the convergence rate of artificial neural network prediction model, but also more effectively show the change law of oxygen consumption in converter, and improve the accuracy of prediction. By combining with the combined model of grey prediction and Elman neural network, the combined model has strong global searching ability, and optimizes the network at the same time, and adds appropriate operators, which enhances the ability of searching local optimal solution and global optimal solution, and can effectively improve the prediction accuracy, guide the steelmaking production to use oxygen reasonably, and improve the production efficiency.

The invention discloses a garbage leachate advanced treatment method and a Fenton reaction tower. The advanced treatment method comprises the following steps: (1) treating garbage leachate in a membrane bioreactor; (2) sending effluent water treated by the step (1) into a Fenton reaction tower, and carrying out advanced oxidation treatment; (3) sending the effluent water treated by the step (2) into a precipitation tank; (4) sending the effluent water treated by the step (3) into an anaerobic aeration biofilter; and (5) sending the effluent water treated by the step (4) into an aerobic aeration biofilter, and discharging the effluent water after reaching the standard. The method is simple to operate and low in operating cost, does not generate any concentrated solution, can implement energy saving and emission reduction in deed.

A country comprehensive sewage treatment system and country comprehensive sewage treatment method belongs to the technical field of water treatment. The system includes, in a successively connected manner, a pre-treatment system for filtering suspended solids in water, a container-type integrated water treatment system, a soil infiltration system, a solar energy power supply system for supplying power to the container-type integrated water treatment system, and a process management system. The system and the method achieve dispersion and separation and integrated treatment of country comprehensive sewage, is convenient to operate and manage, is suitable for distribution characteristics of water quality and water amount of country household sewage and cultivation sewage, and overcome defects in country comprehensive sewage mixed treatment and household dispersed treatment in the prior art.

The present invention discloses inflated metallurgical floatation process and apparatus, and features the completely covered microbubble inflating in the self balanced water separated microbubble generating and inflating mode. The apparatus includes a main machine, a bubble overflowing system, a microbubble generating separator, a microbubble generating system, an automatic mineral slurry regulating mechanism to control the liquid level, etc. Inside the floatation column, leaching tank and oxidation tank, great amount of microbubbles are generated in the bottom and flown in the opposite direction to the falling mineral slurry so as to raise the stirring effect, form stable floating bubble layer, speed oxygen dissolution, increase oxygen utilizing rate, enhance oxidizing leaching and raise floatation recovering rate.

The present invention provides an operation method and device of jet membrane-bioreactor, namely that part of mud mixed liquor enters into a pipeline after pressured through a water pump to form high speed water flow by passing through a nozzle of a jet device to entrain surrounding air. Part of air is dissolved in the mixed liquor through the actions of mixing and cutting to form air-liquor spraying jet to oxygenize on the mud mixed liquor and scour on the membrane components through a diffusion air arrangement plate; simultaneously the air-liquor mixed flow drives the mud mixed liquor in a reactor to form inner recycle in the reactor which is helpful to mass and oxygen transfer, accelerate biochemical reaction and improve treatment efficiency. The device can realize membrane pollution control and improve oxygen utilization ratio simultaneously and has the advantages of low energy consumption, small noise, space saving, simple device structure and stable operation. The present invention is convenient for unmanned operation and control.

The invention discloses an anti-fatigue energy composition which is prepared by the following raw materials in parts by weight: expanded black rice flour, oatmeal, coconut oil, corn syrup, soybean protein isolate powder, maltodextrin, carnitine, vine tea flavone extract, grape seed extract, quercetin extract, octacosanol, caffeine, branched chain amino acid, taurine, low fat cocoa and concentrated vanilla; the anti-fatigue energy composition is capable of rapidly supplementing sugar, fat, protein, electrolyte and other nutrients which are needed by the organism and promoting the nutrients to be absorbed, can be used for rapidly supplementing the consumed carbohydrate and the lost nutrients of human body caused by sweating excessively under the condition of exercises, especially medium and high intensity exercises and exercise training, and is beneficial for relieving central and peripheral fatigue; after the anti-fatigue energy composition is adopted, the antioxidant capacity and the aerobic metabolism level of the organism are improved, the oxygen utilization rate of cells can be improved, the moment and fatigue resistance of the organism can be better rapidly improved, and the sport injury is avoided.

The invention relates to a treatment method for removing nitrogen oxides by virtue of an ozone function. The method comprises the following steps: (1) flue gas containing the nitrogen oxides is introduced into a flue and an ozone adding distributor is additionally arranged; (2) a gas source is introduced into an ozone generator, ozone is generated and diluted and then is mixed in a mixer to obtain ozone diluted uniformly, and the ozone diluted uniformly enters the ozone adding distributor; (3) the ozone diluted uniformly and the flue gas containing the nitrogen oxides are mixed in the ozone adding distributor and are subjected to oxidation reaction, NO in waste gas is converted into high-valent nitrogen oxides and then the high-valent nitrogen oxides enter an absorption tower; and (4) the flue gas is absorbed by the absorption tower and absorption liquid and is purified to obtain tail gas, and the tail gas is exhausted from a chimney. The treatment method for removing the nitrogen oxides has the high efficiency, the low energy consumption and the convenience in use.

The invention discloses a rotary type hollow fiber porous membrane foamless oxygen charging device and method. The device comprises a rotary foamless membrane type oxygen charging assemble, an air supplying and exhausting system, a water supplying and draining system and a motor and electrical control system. In the method, the raw water is added in an activated sludge aeration basin, the rotary foamless membrane type oxygen charging assemble rotates in the aeration basin at the speed of several to tens revolutions per minute, the oxygen charging adopts the intermittent air charging and discharging way, the air feeding pressure is controlled under the bubble point of the fiber membrane, the oxygen is dissolved rapidly on the membrane surface and is dispersed into the sludge water under the drive of the concentration difference and the pressure difference, the dissolved oxygen concentration is kept at 1 to 2.5 mg/l, the rotary oxygen charging assemble play the role of the mixing and activated sludge stirring. Compared with the traditional aeration method, the invention has high oxygen transmissibility, good oxygen charging effect, little oxygen charging amount, lower energy consumption, little membrane pollution, and convenient change and maintenance, and is very suitable for the upgrading and reforming of the activated sludge aeration basin in the sewage treatment technology.

The invention provides an integrated whole autotrophic nitrogen removal device and belongs to the technical field of biological nitrogen removal of wastewater. The device comprises a reaction device body, wherein a granular sludge chamber and an anaerobic sludge-biomembrane chamber are arranged in the body, a water feeding and distributing device, an aeration pipe and a partition board are sequentially arranged in the granular sludge chamber from bottom to top, a filler suspending layer, a filler stacking layer and a water outlet chamber are formed in the anaerobic sludge-biomembrane chamber from top to bottom, the anaerobic sludge-biomembrane chamber surrounds the outer side of the granular sludge chamber, the partition board is arranged in the middle of the granular sludge chamber, a gas-collecting hood is arranged at the upper part, a first gas outlet is formed in the gas-collecting hood, an annular overflow port communicated with the anaerobic sludge-biomembrane chamber is formed in the upper part of the inner wall of the granular sludge chamber, a buffer and a water distributor are connected to the upper part of the inner wall of the anaerobic sludge-biomembrane chamber, and asecond gas outlet is formed in the top. The device can be started in a short time, can effectively intercept sludge to create aerobic and anaerobic environments and improve the system biomass and diversity, occupies little floor space and is good in water treatment effect.

The invention relates to a limestone slagging steelmaking lance position control method for basic oxygen furnaces, which belongs to the technical field of steelmaking. In the technical scheme, after limestone is directly added to replace conventional lime during slagging in the process of converter steelmaking, under the condition of keeping front pressure, the oxygen lance position is lowered to the decarburization-stage lance position in the lime slagging converting method at the early stage of converting in order to blow oxygen, and the lance position is raised at the middle and late stages of converting; when converting is almost ended, the lance position is lowered to the lowest position; and compared with the lime slagging converting method, the original high lance position is changed into the low lance position. The method has the advantages that not only the slag overflow of the mouth of a converter be inhibited, but also the proportion of carbon-oxygen reaction in molten iron is increased as much as possible from the beginning of oxygen blowing, thereby being equivalent to the advancement of the decarburization stage, and the effects of accelerating internal temperature rise, increasing the oxygen utilization rate, increasing the ratio of generated CO and the like can be achieved.

The disclosed aerobic jet-loop compactreactor (JLCR) for organic sewage treatment comprises an inside-outside jacket jet pipe and a draft tube on bottom, blends all of the jet aeration, biological fluid bed and deep-well aeration, improves the material mixing and transfer, oxygenates the sewage repeatedly, has stable effect with cost less than two thirds of common technique, and has wide application.

The invention discloses a biological filtering material and a preparation method thereof. The biological filtering material is prepared from clay 70-80 wt%, fly ash 15-25 wt%, raw coal 3-5 wt% and pore forming agent 0.2-3 wt% by pulverizing clay into 100 mesh; mixing dry powders of clay, fly ash, raw coal and pore forming agent; mixing with water 18 wt% and pelletizing; drying; calcining at 1,050-1,200 DEG C in a kiln; taking out; cooling; sieving; and selecting particles with the diameter of 4-10mm. The biological filtering material has good shearing effect to gas and water, and can prevent bubble aggregation; and compared with ceramsite filtering material, its oxygen utilization is improved by 20-30%. Biomembrane grows the surface of the filtering material and the internal surfaces of pores in a great amount, so influence of backwashing on the internal surfaces of the pores is not great and the quality fluctuation of the discharged water after backwashing is also small. The filtering material is almost spherical and has low pelletizing requirement, and the cost of a pelletizing device and a pelletizing process is relatively low. The prepared filtering material has high strength and void volume.

The ferritic stainless steel mother liquid smelting process in the charge mixture mode of dephosphorized molten iron+waste carbon steel+ferrochromium includes the following steps: feeding dephosphorized molten iron, waste carbon steel and ferrochromium and powering on; adding ferrosilicon after powering for 2.0-4.0 Mwh; beginning oxygen blast after powering for 5.0-7.0 Mwh; regulating the oxygen flow rat to 2500 Nm3/h and total oxygen amount to 9-10 Nm3/t after power consumption reaches 8.0-12.0 Mwh; adding lime after power consumption reaches 7.0-10.0 Mwh; spraying carbon powder after power consumption reaches 16.0-20.0 Mwh; adding dolomite after power consumption reaches 15.0-18.0 Mwh; reducing after power consumption reaches 220-240 Kwh/t and the measured temperature reaches 1610 deg.c; and tapping after power consumption reaches 250-320 Kwh/t and the measured temperature reaches 1630-1660 deg.c. The present invention has low power consumption and other advantages.

The invention relates to a composition with a muscle gain function, which comprises the following active ingredients of creatine, taurine, beetroot extract and beta-hydroxyl-beta-methyl butyrate. The invention further provides a sports drink comprising the composition, and the sports drink comprises the composition and a food additive. The sports drink has the functions that the muscle blood stream can be increased, the oxygen utilization rate can be enhanced, the sports energy consumption can be reduced, so that the motion function can be improved.

The invention discloses a method for smelting stainless steel mother liquor with a furnace wall carbon-oxygen spray gun in an arc furnace. The method is characterized in that an eccentric bottom tapping arc furnace provided with the furnace wall carbon-oxygen spray gun is used; during smelting, the furnace wall carbon-oxygen spray gun is used to preheat and cut metallic charge and perform oxygen blowing and decarburization in the oxidation period; by using the furnace wall carbon-oxygen spray gun to provide chemical energy and preheat and cut scrap steel, the melting rate can be increased, the smelting time, and electrode consumption and smelting power consumption can be reduced; a burner adopts a coherent jet oxygen supply mode to blow oxygen and decarburize so that the utilization rate of oxygen is high and the oxidation quantity of chromium is low; and the smelting time and the metallic charge consumption are reduced. The method uses the furnace wall carbon-oxygen spray gun to smelt stainless steel, thus the consumption of oxygen lances can be reduced, the production cost can be significantly lowered and the labor intensity of workers can be significantly reduced.

The invention discloses an on-line self-cleaning flexible membrane bioreactor with high flux and low energy consumption, which relates to a sewage treatment technology of the membrane bioreactor, and is suitable for purifying micro-polluted water, domestic sewage and industrial wastewater capable of being subjected to biochemical treatment. The on-line self-cleaning flexible membrane bioreactor consists of a membrane bioreactor (1), a zipper flexible membrane component (2), a chain, a V-shaped scraper (3), a gear roller shaft (4), and a microporous aeration pipe arranged in the membrane bioreactor, wherein the zipper flexible membrane component (2) and the chain are combined through a zipper and arranged on the gear roller shaft (4). During cleaning, water is injected or emptied by a cleaning water tank, the obtained potential energy is converted into cleaning driving force, the zipper flexible membrane component (2) is driven to rotate around the gear roller shaft up and down, and pollutants on a membrane surface is scraped by the V-shaped scraper (3) and are separated from the membrane bioreactor (1). The on-line self-cleaning flexible membrane bioreactor has the advantages of high flux, small aeration amount and occupied area, low energy consumption and operating cost, and capability of effectively controlling membrane pollution.

The invention discloses a biological cathode strengthened type constructed wetland microbial fuel cell coupling system and a sewage treatment method. The system is characterized in that the system isprovided with a first gravel layer, a positive pole, a second gravel layer, a negative pole and emergent aquatic plants sequentially along the water flow direction, a water inlet and a water outlet are positioned below the first gravel layer and above the second gravel layer respectively, and the positive pole is connected with the negative pole through an external circuit. The dissolved oxygen concentration of a negative pole area is increased by hydraulically driving the negative pole to rotate, the oxygen utilization rate is increased through secretases of microorganisms on the negative electrode, a wetland substrate provides a great place for microorganism growth, microorganism activity is improved by root system sediments and an oxygen secretion function of wetland plants, and accordingly purification effects and power generation performance of the coupling system are improved.