37 results about "Oxygen solubility" patented technology

The invention relates to the field of vanadium slag hydrometallurgy and vanadium chemical engineering, in particular to a method for extracting chromium and vanadium from vanadium slag at a low temperature and the normal pressure. The method comprises the following steps that firstly, burdening, wherein the vanadium slag and a NaOH solution are mixed to form reaction slurry; secondly, reaction, oxide gas is led into the reaction slurry through a micro-hole arrangement device to carry out normal-pressure oxidative leaching, and after the reaction, solid-liquid mixed slurry of a solution containing NaOH, Na3VO4, Na2CrO4, water soluble impurity components and iron-rich tailings is obtained; thirdly, solid-liquid separation; fourthly, impurity removing; fifthly, sodium vanadate crystallization; and sixthly, sodium chromate crystallization. According to the method, chromium and vanadium efficient common extraction can be achieved, the extraction efficiency of both chromium and vanadium can be higher than 85%, more importantly, after the micro-hole gas distribution manner is adopted, the oxygen solubility can be obviously improved, the reaction temperature and alkali concentration are obviously reduced compared with those of an existing vanadium extraction method, the operation safety is greatly improved, and reaction energy consumption is reduced.

The invention relates to a water environment improver for aquiculture, which comprises potassium bisulfate compound salt, sodium bromide and zeolite powder. The components are weighed in proportion, evenly mixed at the normal temperature and packed. The improver has fast action and stable effect, greatly reduces the ammonia nitrogen, nitrite, sulfurated hydrogen and COD in water, enhances the water oxygen solubility, decreases alga density, inhibits the pathogenic microorganism, improves the transparence, water quality and bottom quality environment quality, prevents cultured organism diseases and sudden death and increases the yield and quality of the cultured organisms.

The invention discloses a multifunctional automatic control column leaching experimental facility, belonging to the field of leaching mining. The experimental facility mainly comprises a liquid circulation system, a water circulation system, an air circulation system, an automatic control system and a data collection system. The liquid circulation system is composed of a reaction column, a high-level tank and a liquid receiving tank; the water circulation system is composed of a hot water tank, a solenoid valve, a liquid receiving tank jacket, a reaction column jacket and a high-level tank jacket; the air circulation system is composed of an air compressor, an air flowmeter and a control valve; the automatic control system is used for automatically regulating and controlling the temperature of the leaching system, oxygen solubility and solution flowing; the data collection system can be used for automatically collecting and storing the solution pH value, the oxygen solubility, electric potential, the temperature and other parameters in real time. The experimental facility can be used for performing indoor simulation experiments and semi-industrial scale pilot plant experiments according to heap-leaching field conditions and actual size of mineral particles, effectively simulating the multiphase and multilevel seepage state of ore bulk and a microbiological leaching and biochemical process, and providing basic data for heap-leaching production practice and technological parameter optimization.

An adenosine generating bacterium Bacillus subtilis JSIM-1025 is disclosed. A fermenting method for generating adenosine with high output (more than 23g/L) features that the fermentation is conducted at 37 deg.C for 60 hr in such conditions that the optional concentration of the ferment cream as the optical component of culture medium is 1.8%, the optimal pH value is 6.5, and the optimal oxygen solubility is 40%.

The invention discloses an enhancing method of oxygen mass transfer efficiency of a microbial fuel cell cathode, comprising the following steps: arranging a guiding mechanism in the cathode chamber of a fuel cell; arranging the cathode of the fuel cell in the guiding mechanism or reducing the size of the cathode chamber of the fuel cell to achieve the function of the guiding mechanism; and arranging an aeration mechanism below the guiding mechanism and feeding oxidant bubbles in bubble flow or slug flow into the guiding mechanism through the aeration mechanism. The invention also discloses a microbial fuel cell designed according to the method. Due to the guiding mechanism used in the cathode, the cathode aeration intensity is enhanced, the catholyte oxygen solubility is increased, and simultaneously the purposes of stirring the catholyte, increasing the catholyte circular flow and increasing the mass transfer rate of proton to the electrode are realized, thereby effectively enhancingthe cathode reaction efficiency, ensuring the anaerobic condition of an anode chamber and increasing the electricity generating ability of the fuel cell.

Provided are a proton conductor for a fuel cell, the proton conductor including a phosphoric acid-based material; and a C8-C20 perfluoroalkylsulfonic acid salt which is dissolved in the phosphoric acid-based material and has excellent oxygen solubility characteristics, an electrode including the proton conductor, an electrolyte membrane for a fuel cell including the proton conductor, and a fuel cell including the electrode and the electrolyte membrane. When the C8-C20 perfluoroalkylsulfonic acid salt is used in the preparation of the electrode and electrolyte membrane for a fuel cell, oxygen solubility is increased in a phosphoric acid-based material and oxygen concentration is increased in a phosphoric acid-based material of the electrode. Thus, reactivity of oxygen reduction which is performed in a cathode is increased. Increased concentration of oxygen in the electrode increases oxygen permeability in the cathode, and thus the resistance against reactants' transfer is decreased. As a result, the cell voltages can be increased using the electrode and the electrolyte membrane, and fuel cells having improved efficiency can be prepared.

The invention discloses a water electrolysis cup. The water electrolysis cup comprises a cup body with a drinking water area, a frame enclosure is arranged in the drinking water area, and an electrolysis device is arranged in the frame enclosure and comprises at least one diaphragm and at least one electrode groups. The at least one diaphragm is mounted vertically and partitions the frame enclosure into at least one anode chamber and at least one cathode chamber. Each electrode group comprises an anode electrode vertically mounted in the corresponding anode chamber and a cathode electrode vertically mounted in the corresponding cathode chamber. Each diaphragm is positioned between the corresponding anode electrode and the corresponding cathode electrode, one end of each cathode chamber and one end of each anode chamber are provided with through holes communicated with the drinking water area respectively, or the through hole of each cathode chamber is communicated with the drinking water area, and the through hole of each anode chamber is communicated with the outside of the cup body. By adoption of the technical scheme, oxygen solubility is increased, and quality of generated water is more beneficial to human health.

Methods and apparatus for preparing an enhanced water composition having increased oxygen solubility, and methods for employing the composition to enhance oxygen absorption in tissues for enhancing athletic performance and treating the symptoms of disease are provided herein.

The invention relates to a culture method of mandarin fish. The culture method includes the following steps of 1, building a pond; 2, disinfecting the pond; 3, injecting water into the pond; 4, putting bait fish in the pond; 5, putting mandarin fish fry in the pond; 6, culturing the mandarin fish, wherein the water temperature in the pond, the PH value, the nitrogen content and the nitrite content of water and the oxygen solubility in the water are regularly detected every 10 days; 7, obtaining the mandarin fish. According to the method, the bait fish and the mandarin fish are cultured in a polyculture mode, the problem that bait supply is insufficient at times in mandarin fish culture and consequently the mandarin fish yield is low is solved, the culture density is uniform and suitable for growth of the mandarin fish, and thus the yield is high; it is avoided that a worker spends time putting bait every day, so that the culture cost of the mandarin fish is lowered; furthermore, the well water is adopted for culturing the mandarin fish, so that reproduction and growth of pathogenic bacteria in the water are restrained, diseases are reduced, the yield of the fish is increased, and the quality of the fish is improved.

Fuel cells (9) include unitized electrode assemblies (12) having a non-perfluorinated hydrocarbon ionomer exchange membrane (26) with anode and cathode catalysts (27, 28) disposed on opposite sides thereof. Adjacent the catalysts, respective optional sublayers (29, 30) may be supported by corresponding gas diffusion layers (31, 32), with adjacent porous, hydrophilic, water transferring reactant gas flow field plates (13, 14) having respective fuel (17) and oxidant (23) reactant gas flow field channels. Water channels (18, 19, 20)hydrate the membrane (26), clear the product water from the cathode (28, 30, 32), flush peroxide radicals, and may also cool the fuel cells. Improved performance (124) (higher voltage at higher current densities) is achieved along with elimination of a propensity for degradation from peroxide decomposition products resulting from oxygen solubility of perfluorinated membranes. Platinum/ruthenium alloy anode catalysts improve performance without degradation which occurs with perfluorinated membranes.

The invention discloses an intelligent control oxygenation method based on a three-dimensional dissolved oxygen map. Through the online monitoring of oxygen solubility of different positions and different depths in a fish pond, a distribution three-dimensional map is established based on a detected dissolved oxygen value to reflect a real dissolved oxygen value, thus the water quality dissolved oxygen regulation can be carried out well, the quality and output of aquatic products are improved, the risk of breeding is reduced, and the economic benefits of farmers are greatly increased.

The invention relates to a micropressure operation system, which comprises an operation room, an air compression system, an oxygen generating system and a controller. The operation room can bear positive pressure. The air compression system and the oxygen generating system can be connected with the operation room through a compression air inlet pipe and an oxygen inlet pipe. During the working process, the controller controls the air compression system and the oxygen generating system to charge compression air and oxygen to the operation room, thereby forming a positive-pressure and oxygen-enriched environment in the operation room; moreover, the oxygen solubility in the blood is in positive correlation to the pressure. Therefore, dissolved oxygen in the patient blood can be obviously increased in the positive-pressure and oxygen-enriched operation room; therefore, the micropressure operation system can effectively improve the operation environment.

The invention belongs to the field of aquaculture, and particularly relates to an ecological hyperoxic water making device. The ecological hyperoxic water making device comprises a lifting channel, a suction pump, a draining pump and an ultrasonic device, wherein the lifting channel runs from the interior of a culture pond to the position above the water surface, the suction pump is arranged on the lower portion of the lifting channel, the draining pump is arranged on the upper portion of the lifting channel, and the ultrasonic device is arranged inside the lifting channel. The suction pump sucks water in the culture pond into the lower portion of the lifting channel, and the draining pump drains water in the upper portion of the lifting channel back into the culture pond from the water surface. According to the technical scheme, oxygen solubility in the water is increased by destroying the structure of water molecules; meanwhile, the function of sterilization by natural light, the function of increasing a contact area with the air and the like are also achieved, ecological hyperoxic water making is truly realized, cultivation of high-quality aquatic products becomes possible, and the ecological hyperoxic water making device has a wide range of market requirements.

The present invention relates to an air diffuser used in treating wastewater by mixing air therein, and more specifically to a solubility-amplified air diffuser which increases the oxygen solubility of wastewater by having more air mixed with the wastewater and having the air remain therein for an extended amount of time. A solubility-amplified air diffuser according to the present invention comprises: a main body having a circulation hole penetrating an inlet and an outlet; an air nozzle, connected to the circulation hole, having an inflow hole through which air flows in; and an amplification member provided in the interior of the main body and having a circulation hole in open communication with circulation holes on both sides of the main body, and, between the outer surface of the amplification member and the inner surface of the main body, forming a separating space in which the air flowing in from the circulation hole momentarily circulates.

The invention discloses a thermal stratification reservoir three-field dynamic dissolved oxygen coupling model and a construction method thereof. The construction method comprises the following stepsof constructing a water power basic control equation, a water surface heat exchange equation and a water quality reaction equation of turbulence influence and density change, and constructing a three-field dynamic dissolved oxygen coupling model of a water power field, a temperature field and a concentration field; acquiring topographic data and historical monitoring data of a thermal stratification reservoir; according to the topographic data and the historical monitoring data, carrying out solving and calibration verification on the model through the three-field dynamic dissolved oxygen coupling model constructed based on an MIKE3 software platform, and then calculating spatial and temporal distribution of thermal stratification reservoir dissolved oxygen under the conditions of different water levels, scheduling operation modes and nitrate concentrations of the reservoir; and comparing the dissolved oxygen concentrations under different scenes, selecting the highest dissolved oxygensolubility value of a stagnant temperature layer, and taking the water level, the scheduling operation mode and the nitrate concentration corresponding to the highest dissolved oxygen solubility value as the dissolved oxygen adjustment strategy of the corresponding scene of the thermal stratification reservoir.

The invention provides an automatic processing system and method for gas space closed loop inerting of an old tank of an oil station. The automatic processing system comprises gasoline tanks, gas supply devices and a VRU, and the gas supply devices are connected with the gasoline tanks through a gas supply pipeline; the gas supply pipeline is connected with a pressure relief valve and an intake valve, and the VRU is connected with the gasoline tanks through a gas outlet pipeline connected with electronic pressure transmitters and an oxygen solubility detector; the VRU is further connected witha gas return pipeline and an exhaust pipeline, and the other end of the gas return pipeline is connected with the part, between the pressure relief valve and the intake valve, of the gas supply pipeline; and the gas return pipeline is provided with a gas return valve, and the exhaust pipeline is provided with the exhaust valve. Gas is continuously supplied through the gas supply devices so that oil gas in the gasoline tanks is liquefied continuously; and the oil gas in the gasoline tanks is liquefied into oil liquid, and the inerting treatment to the gasoline tanks is achieved.

The invention relates to a graded pressure water oxygen dissolving device and an implementation method. The device comprises an emptying port, an upper seal head, a lower seal head, an upper seal headconnecting flange, a gas-liquid contact sieve plate, an equipment cylinder, a gas distribution plate, a medium-pressure dissolved gas water outlet, a high-pressure water inlet, a filler, a filler supporting plate, a lower seal head, a water outlet, an oxygen inlet, a gas-liquid separation device, a gas pressure release nozzle and a medium-pressure water inlet, wherein the gas-liquid separation device consists of a circumferential gas bin, a central gas bin and a gas collecting pipe. According to the invention, the device has the technical effects of stability and reliability in operation, overall improvement of oxygen utilization efficiency, great reduction of oxygen loss, high oxygen solubility under high pressure, overall improvement of oxygen dissolution rate, decomposability and miniaturization of equipment, convenience in maintenance, operation and management, energy conservation and capability of realizing automatic control, wherein the utilization efficiency of oxygen can reachthan 95%.

A multi-purpose accessory rotator coordinator connector and coordinator ring, pin that link by force in a container. The cylinder hollow interior base that's fitted or inserted with a magnetize pin from the ring and also inserts the Picks-Sticks for Food Garnish or fish solid paste foods. Beverage containers and Also in stimulating motility in aquatic control environments containers are idea problem solving method in liquids. The flakes or propeller is an apparatus with multiple spikes stimulates by way of mixing in with a liquid. The rotator coordinates a link on the outer or opposite side of the surface with the magnetize ring and pin. Rotator coordinator connector is structure to mix the beverage to minimize separation of the beverage into component phases or layers and Stimulates motility in fish health by movement on generating H₀H levels of electronic structure that form hydrogen bonds in the container. Therefore makes water an excellent solvent that creates oxygen solubility levels in water for fish.