116results about How to "Improve oxygen transfer efficiency" patented technology

A long term oxygen therapy system having an oxygen supply directly linked with a patient's lung or lungs may be utilized to more efficiently treat hypoxia caused by chronic obstructive pulmonary disease such as emphysema and chronic bronchitis. The system includes an oxygen source, one or more valves and fluid carrying conduits. The fluid carrying conduits link the oxygen source to diseased sites within the patient's lungs. A collateral ventilation bypass trap system directly linked with a patient's lung or lungs may be utilized to increase the expiratory flow from the diseased lung or lungs, thereby treating another aspect of chronic obstructive pulmonary disease. The system includes a trap, a filter / one-way valve and an air carrying conduit.

A method and apparatus creates gas-enriched fluid that is used to treat wastewater. In one embodiment, the wastewater is withdrawn from a supply of wastewater to be treated, and the wastewater is delivered in an atomized manner to a vessel pressurized with gas to form gas-enriched wastewater. The gas-enriched wastewater is then delivered to the supply of wastewater to be treated.

A pulmonary decompression device may be utilized to remove trapped air in the lung or lungs, thereby reducing the volume of diseased lung tissue. A lung reduction device may passively decompress the lung or lungs. In order for the system to be effective, an airtight seal between the parietal and visceral pleurae is required. Chemical pleurodesis is utilized for creating the seal.

A long term oxygen therapy system having an oxygen supply directly linked with a patients lung or lungs may be utilized to more efficiently treat hypoxia caused by chronic obstructive pulmonary disease such as emphysema and chronic bronchitis. The system includes an oxygen source, one or more valves and fluid carrying conduits. The fluid carrying conduits link the oxygen source to diseased sites within the patients lungs. A collateral ventilation bypass trap system directly linked with a patient's lung or lungs may be utilized to increase the expiratory flow from the diseased lung or lungs, thereby treating another aspect of chronic obstructive pulmonary disease. The system includes a trap, a filter / one-way valve and an air carrying conduit.

The invention discloses a method for treating coking wastewater, which belongs to the field of wastewater treatment. The method comprises the following steps that: wastewater of a coking plant enters a regulating reservoir for the adjustment of water quality and water amount, and orderly enters a hydrolytic tank, an anaerobic tank, a preaeration tank, a preliminary sedimentation tank, an aerobic tank, a secondary sedimentation tank and a coagulation reaction tank for treatment, wherein the hydrolytic tank and the preaeration tank are filled with a bio-cord filler; the sludge of the preliminary sedimentation tank refluxes into the hydrolytic tank and the anaerobic tank respectively; a clarifying solution of the secondary sedimentation tank refluxes into the anaerobic tank; and the aerobic tank adopts a moving bed bio-film reactor. The bio-cord filler adopted in the invention has short film formation time and high biomass, does not need repeated washing, and has strong shock resistance; and the moving bed bio-film reactor can fix a large amount of nitrobacteria with long generation time, and has no the problem of blocking. The method can remove high-concentration ammonia nitrogen and organic substances in the coking wastewater, and the COD and the ammonia nitrogen of treated effluent can synchronously achieve the primary standard of the national integrated wastewater discharge standard (GB9878-1996).

A collateral ventilation bypass trap system directly linked with a patient's lung or lungs may be utilized to increase the expiratory flow from the diseased lung or lungs, thereby treating another aspect of chronic obstructive pulmonary disease. The system includes a trap, a filter / one-way valve and an air carrying conduit. In various embodiments, the system may be intrathoracic, extrathoracic or a combination thereof.

An aeration and microbial reactor system for use in decontaminating water including a housing adapted to float within the medium such that a top portion thereof remains adjacent a top surface of the contaminated water while the bioreactor containing inoculated carrier media is attached below. Beneficial microbial populations thrive and spread throughout the liquid medium, and consume or fix the contaminant such that the contaminant is removed from the water.

A long term oxygen therapy system having an oxygen supply directly linked with a patient's lung or lungs may be utilized to more efficiently treat hypoxia caused by chronic obstructive pulmonary disease such as emphysema and chronic bronchitis. The system includes an oxygen source, one or more valves and fluid carrying conduits. The fluid carrying conduits link the oxygen source to diseased sites within the patient's lungs. A collateral ventilation bypass trap system directly linked with a patient's lung or lungs may be utilized to increase the expiratory flow from the diseased lung or lungs, thereby treating another aspect of chronic obstructive pulmonary disease. The system includes a trap, a filter / one-way valve and an air carrying conduit. In various embodiments, the system may be intrathoracic, extrathoracic or a combination thereof. A pulmonary decompression device may also be utilized to remove trapped air in the lung or lungs, thereby reducing the volume of diseased lung tissue. In order for the system to be effective, an airtight seal between the parietal and visceral pleurae is required. Chemical pleurodesis is utilized for creating the seal.

The present invention relates to a sewage treatment process by adopting improved alternative type active sludge method. Said sewage treatment process utilizes the equipments of treatment tank, anaerobic chamber, anoxybiontic chamber, aeration tank and flocculation precipitation tank, etc. and alternatively adopts the process steps of stirring, aeration, concentration, sludge reflus, mixing, flocculation, precipitation and biological dephosphorization, etc. so as to attain the goal of purifying sewage.

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.

The invention relates to a method for processing reverse osmosis concentrated water by a catalyzed internal electrolysis and modified biological aerated filter. The method comprises the following steps: 1) performing catalyzed internal electrolysis pre-processing: regulating a pH value of wastewater, and removing organic substances in concentrated water through iron-carbon internal electrolysis reaction; 2) performing two-stage biological filter biological membrane processing: after performing coagulating sedimentation on catalyzed internal electrolysis outlet water, introducing the catalyzed internal electrolysis outlet water into a two-stage biological filter (a denitrification biological filter and an aeration biological filter) to further remove organic substances and ammonia nitrogen in the concentrated water. The method is high in processing efficiency, low in operation cost and capable of effectively removing organic substances which have toxic action to human health and an ecological environment in the concentrated water and improving wastewater biodegradability; the improved aeration biological filter can be suitable for characteristics of high hardness, high alkalinity, high sulfate and the like of the RO concentrated water, so that the water quality of the outlet water meets emission needs and a novel way for processing the reverse osmosis concentrated water is provided.

A multi-layer membrane includes a fluorine containing layer and a substrate which are joined through spray coating and heat treatment in a multi-step technique.

The invention discloses a synchronous denitrification and dephosphorization sewage treatment device for an immobilized microorganism CASS (cyclic activated sludge system). The synchronous denitrification and dephosphorization sewage treatment device comprises a pond. A water inlet tube is arranged at one end of the pond, a water outlet tube is arranged at the other end of the pond, a hollow gridding reaction box is disposed in the pond, immobilized microorganism carriers are arranged in the hollow gridding reaction box, and an aeration device is arranged at the bottom of the pond. The synchronous denitrification and dephosphorization sewage treatment device aims to overcome shortcomings in the prior art, is simple in structure, and is efficient and stable.

The invention relates to a multistage bioleaching reactor process and equipment for sludge treatment. The equipment comprises bioleaching reactors of multiple stages, a sludge thickening pool, aeration devices, an internal sludge reflux pump, an external sludge reflux pump, a dewatering pump, a box type press filter and the like. Composite microbial flora mainly comprising acidophilic thiobacillus, acid-resisting heterotrophic bacteria and the like is utilized, sludge is subjected to acidification in the bioleaching reactors of multiple stages under the condition that the composite microbial flora is matched with nutritional substances in an aerobic environment with appropriate temperature, finally, the pH value is decreased to be smaller than 3, heavy metals in the sludge are transferred into an aqueous phase, and mud cakes with moisture content lower than 60% can be obtained through press filtering and dewatering. The aeration devices adopt flow jetting aeration or centrifugal flow diffusing aeration, so that the power consumption is decreased by over 30% compared with that of air blasting aeration. After the sludge is subjected to bioleaching reaction, no more odors are generated, pathogenic microorganisms of over 99% are killed, the dewatering is easy, the moisture content of the mud cakes is lower than 60% in the case of not adding any medicaments, and the amount of the sludge is reduced greatly.

The present invention relates to an aerated stirring apparatus for automatically controlling an aeration volume. The apparatus comprises a vessel body, an aerating structure, a controlling structure, and a stirring structure. The stirring structure comprises a stirring shaft, a power input structure of the stirring shaft that supplies power to the stirring shaft, and a plurality of stirring blades disposed on the stirring shaft and located within the vessel body. The aerating structure comprises a plurality of separate aeration lines. An inlet chamber, an aeration conduit with one end communicating with the inlet chamber, and an aeration manifold communicating with the other end of the aeration conduit form an aeration line. An electromagnetic valve is disposed on each aeration line to control an air intake volume. The controlling structure comprises a plurality of controllers. A probe of a dissolved oxygen device is fixed on each of the stirring blades. The ON / OFF of the corresponding electromagnetic valve is controlled by the controller according to a received signal of oxygen concentration. The apparatus can effectively control the problems of non-uniform gas delivery, high energy consumption, wasting gas resources, high costs, poor product quality, and low productivity in an amplified reactor.

An aeration and microbial reactor system for use in decontaminating water including a housing adapted to float within the medium such that a top portion thereof remains adjacent a top surface of the contaminated water while the bioreactor containing inoculated carrier media is attached below. Beneficial microbial populations thrive and spread throughout the liquid medium, and consume or fix the contaminant such that the contaminant is removed from the water.

The invention discloses a buried domestic sewage treatment system, comprising a grille regulating reservoir, a biological contact oxidation pond, a coagulation reaction pool, a settling pond, a sludge thickener, a sterilizing device, a draught fan and liquid level control equipment. The sewage enters a digestion tank, large particles, settleable solid and floating dregs are intercepted, effluent enters the grille regulating reservoir, and is lifted to the biological contact oxidation pond by a sewage pump, the pre-treated sludge is subjected to aerobic biological treatment through the biological contact oxidation pond, an organic matter is degraded into carbon dioxide and water under the action of oxygenic aeration and a biological membrane, the effluent enters the settling pond to be subjected to mud-water separation, then the processed water is discharged, the sludge is lifted to a sludge-tank by a slime pump, and the sludge is outwards transported after being concentrated while the supernate is returned to the regulating reservoir to retreat.

The invention relates to a biochemical treatment method for improving polymer-containing sewage matrix of the oil field. Polymer-containing sewage is firstly added with a demulsifier and enters a demulsification buffer tank for demulsification, after a pH regulator is added to effluent of the demulsification buffer tank, the effluent enters a pH regulating tank and enters a floatation tank for floatation after pH is regulated, and a flocculant adding point is arranged at an inlet of the floatation tank; effluent of the floatation tank enters a filter, is filtered and then enters a water buffer tank, a compound biological nutritional agent is added, effluent of the water buffer tank sequentially enters an anaerobic tank and an aerobic tank for treatment and performs mud-water separation through a settling pond, a liquid supernatant of the settling pond is discharged after meeting the standard, a part of sludge at the bottom of the settling pond flows back to the front end of anaerobic tank, the remaining sludge and dross produced during floatation enter a sludge concentration tank and are concentrated and dewatered by a dewatering device. The treatment efficiency is high, the load impact resistance ability is high, the operation is stable and standard discharge after treatment of the polymer-containing sewage of the oil field is realized.

The invention discloses a treatment method for port chemicals wastewater. The method comprises the following steps: the oil separation-air floating treatment, the biological fluidized bed treatment, the anaerobic settling tank treatment and the ozone aeration biological filter integral device treatment. The port chemicals wastewater is retained for 1 to 3 hours in an oil separation tank; and the surface load of the oil separation tank is 0.8 to 1.5m / m.h. The hydraulic power is retained for 6 to 18 hours in a biological fluidized bed; and the gas-water ratio is 10-30:1. The hydraulic power is retained for 12 to 36 hours in an anaerobic settling tank. Then after the wastewater is retained for 1 to 2 hours in an intermediate regulation tank, 50 to 200 mg / L of ozone is added. After being oxidized by the ozone, the wastewater undergoes the biochemical treatment in the aeration biological filter; and the hydraulic power is retained for 6 to 12 hours in the aeration biological filter. The method realizes the miniaturization of equipment, reduces the floor space and energy consumption, and has stable treatment effect. The automatic control on the wastewater treatment process is easily realized and the personnel operation is simple, and the method has good industrialized application prospect.

The invention discloses a method for producing xylosic acid through xylose whole-cell catalysis by direct oxygen introduction and pressurization. The method comprises the following steps that: oxygen is directly introduced into a xylose liquid deep reaction system for air replacement in the mixing condition, the gluconobacter oxydans is then inoculated into the system, the sealed reaction system is pressurized to 0.01-0.10MPa with oxygen to carry out xylose whole-cell catalysis for the production of the xylosic acid; the carbon dioxide content generated by the neutralization reaction of the reaction system is monitored, when the carbon dioxide concentration in the waste gas exceeds 5%, mixing intensity is reduced, the reaction system is started, the waste gas in the reaction system is replaced through the oxygen, then the reaction system is again sealed, and the stirring strength is recovered to continue the reaction. By adopting the method disclosed by the invention, the severe foam problem caused by direct air introduction in the production process can be completely solved, no defoamer needs to be added, product refining procedure is greatly simplified, product quality is improved, the product concentration of the xylosic acid and the yield of the unit system are respectively improved by 50% and 66% due to the high concentration oxygen introduction, the xylosic acid product concentration reaches 600g / L, and xylose utilization rate is higher than 98%.

The invention relates to the field of sewage treatment and discloses underground type micro power purifying tank sewage treatment equipment and a treatment method. The purifying tank sewage treatment equipment comprises an oil isolating pool, a facultative pool, an aerobic pool and a settling pool which are arranged in sequence and communicated in sequence through corresponding openings and water passing devices. Specially-made microorganism carrier filler, aerator pipes and sewage backflow and air lift pipelines are arranged in the facultative pool and the aerobic pool. A mixed liquor backflow and air lift pipeline and an overflow weir are arranged in the settling pool. While oil and water separation is achieved, floating oil is controlled within a certain water surface region, and therefore convenience is brought to follow-up clearing and sludge sucking; the dead water region of the facultative pool is reduced, the contact area between sewage and facultative microorganisms is increased, and time for contact between the sewage and the facultative microorganisms is shortened; membrane formation and growth situations of the microorganisms can be observed conveniently; oxygen transfer efficiency is improved, and meanwhile air holes can be prevented from being blocked; the sludge in the settling pool can flow back to the oil isolating pool well.

The biofluidized composite reactor adopts honeycomb section structure, the internal cylinder of said reactor is positioned in the centre of interior of external cylinder of said reactor, in the annular space between external cylinder and internal cylinder of the reactor even number of partion boards can be added, and the separated adjacent annular space zones are successively used as flow-lifting zone and flow-falling zone, said flow-lifting zone and flow-falling zone are limited by said honeycomb section structure, and the section area of single flow-lifting zone is reduced, so that it can better uniformly fluidize, reduce energy consumption and raise oxygen-transferring efficiency.

The invention provides a gravity-flow membrane bioreactor with low energy consumption. The gravity-flow membrane bioreactor comprises a reactor tank, a guide cylinder, an aerator, a MBR membrane assembly, an inflow water distribution system, a MBR fan, a process fan, a vacuum suction system, a constant-flow automatic regulation system and an internal sludge circulation system. According to the invention, a MBR membrane is arranged on the top of the bioreactor and siphon is realized through full use of liquid level difference, so power-free water production is realized; since the MBR membrane assembly is located on the upper part of a biochemical aeration system, air for biochemical aeration can be fully used again for scrubbing of the membrane, so considerable air needed in scrubbing of the membrane is saved; and an anoxic area is formed in the bottom of a reaction zone, so a high-efficiency A / O denitrification function is obtained. The gravity-flow membrane bioreactor provided by the invention is a high-efficiency biochemical system realizes organic combination of power-free water production, reduction in air demand, high oxygen transfer efficiency, integrated anoxic / aerobic treatment, sludge backflow without extra power, production of high-quality water and the like.

The invention discloses a novel deepwater lake water restoring method through bubble plume dispersion oxygenation. In a water stratification period, a plume oxygenation jetting device is arranged at the bottom of a lake, an air source of the plume oxygenation jetting device is pure oxygen, bubbles jetted from the plume oxygenation jetting device and introduced water form air-water mixture, then the air-water mixture ascends to the maximum altitude before thermal stratification while the bubbles are continuously dissolved and disappear, sinking plume is formed due to density difference, oxygen-rich water diffuses all around and enters a distant water environment after the plume sinks to the balance depth, the hypolimnion is directly oxygenated, and the ascending velocity of the air-water mixture is 0.12-0.17m / s. The novel deepwater lake water restoring method through the bubble plume dispersion oxygenation is strong in pertinence; ascending bubbles are rapidly dissolved, the oxygen transfer efficiency is high, the oxygenation effect is good, and the operation difficulty and construction difficulty are greatly simplified; and the novel deepwater lake water restoring method through the bubble plume dispersion oxygenation has the characteristics of no disturbance on the thermal stratification, no damage of a lakebed cold water fish growth environment, high feasibility, low implementation risk and good water restoring effect.

The invention discloses a novel microbubble oxygenated biological membrane silk and a water treatment method. The novel microbubble oxygenated biological membrane silk comprises hydrophobic materials,hydrophilic coating and hydrophilic structure reinforced braided fabric. The inner layer of the microbubble oxygenated biological membrane silk is the hydrophobic materials, the middle layer of the microbubble oxygenated biological membrane silk is the hydrophilic coating, the outer layer of the microbubble oxygenated biological membrane silk is the hydrophilic structure reinforced braided fabric, and three layers are mutually bonded into a whole; the hydrophilic coating is coated to the outer surface of the hydrophobic material membrane silk without blocking membrane silk apertures; the hydrophilic structure reinforced braided fabric is adhered to the outer wall, which is coated with the hydrophobic materials, of the membrane silk. After the novel microbubble oxygenated biological membrane silk is adopted, the use ratio of oxygen and the peroxy-molecule ratio and flux of a membrane pore can be effectively improved, the apertures can not be blocked due to the growth of the biologicalmembrane in the membrane silk, meanwhile, the problems of air supply pressure values and the like during oxygen supply can be greatly reduced, multiple targets that oxygen enrichment transferring efficiency is low, power consumption is low, the biological membrane can be easy for growth metabolism and processing efficiency is greatly improved can be realized.