57results about How to "Increase dissolved oxygen rate" patented technology

The invention discloses a campus rainwater ecological cleaning integrated-processing method and an ecological cleaning integration system. The method comprises the following steps: 1) establishing an integration processing system for processing campus rainwater in a campus in advance; 2) selecting a proper processing method according to ecological purification conditions of different water bodies in the campus; and 3) finally collecting rainwater processed in the step 2) to a landscape water body in the campus, or discharging into a river in the campus, or collecting into the underground water layer of the campus. The system comprises an undercurrent type artificial wetland system for processing campus initial-stage rainfall runoff, a shoreland-area closure system for processing campus storm runoff, an ecological floating bed-aeration plug-flow system for processing campus natural revetment river water body, an artificial waterweed-micropore aeration system for processing campus hard revetment river water body, and a biomanipulation-fountain aeration system for processing campus enclosed pond water body. The beneficial effects comprise that the purification effect is good, the cost is low, the resource utilization rate is high and the purification effect is lasting.

The invention relates to a full-automatic disinfection aerator. The aerator comprises a roof cap, a water cavity arranged under the roof cup, a submersible motor which is connected with the water cavity through a flange, and a floating ball which is connected to the other end of the submersible motor, wherein an ozone generator is arranged in the roof cap, and connected with an aerator automatic switching control system which is used for controlling the switch of the ozone generator; an air outlet of the ozone generator is connected with an airway tube; at least one water outlet is annularly formed on the outer wall of the water cavity; a jet pipe is arranged at the water outlet, an inclined air inlet pipe communicated with the inner cavity of the jet pipe is arranged on the lateral wall of the jet pipe; and the air inlet pipe is communicated with the airway pipe. In the full-automatic disinfection aerator, a microcomputer monitor and control system is adopted to perform numerical operation to collected data; the tail end of the ozone generator is connected to the air inlet of jet flow, and mixed gas of ozone and air is introduced into a jet device by utilizing the principle of negative pressure jet flow, so that the effect of disinfecting a water body is achieved, and the oxygen dissolving rate of the water body is increased.

The invention provides an axial-flow inverted umbrella aerator which comprises a driving device, an output shaft and an aeration impeller. The driving device is connected with the aeration impeller through the output shaft and drives the aeration impeller to rotate, the aeration impeller comprises an impeller shaft, a key, an axial-flow blade hub, axial-flow blades, limiting nuts and aeration blades. Water with less oxygen content at the bottom of an aeration tank can be lifted and circulated upwards by the aid of the axial-flow blades, a gas phase of oxygen is transferred into a liquid phase, so that the oxygen and the water are sufficiently and uniformly mixed, the heights and the angles of the axial-flow blades can be adjusted by adjusting positioning screws and adjusting screws according to the height of a liquid level and medium characteristics, and the functions of the aerator are sufficiently played.

The invention discloses a method for preparing polymalic acid by adding oxygen carriers. Budding short-stalk mucedine strains serve as original strains, and spore suspension liquid is prepared; the spore suspension liquid is transferred to a seed culture medium to be cultured, the culture temperature ranges from 20 DEG C to 30 DEG C, the rotating speed of a shaking table ranges from 180 r/min to 230 r/min, and the culture time ranges from 35 h to 45 h; under the protection of flame, the obtained seed liquid is transferred to a fermentation medium at the amount of 8-12 %v/v to be cultured in a fermentation mode; a 10 mol/L H2O2 solution is added in a flowing mode when fermentation is conducted to the logarithmic phase of 35-50 h, wherein the volume of the H2O2 solution is 0.5-2 % of the volume of fermentation liquor, the fermentation period ranges from 140 h to 150 h, the H2O2 solution added in the logarithmic phase in the flowing mode promotes the oxygen dissolving rate, and therefore the synthetic efficiency of the polymalic acid is improved, the conversion rate of substrates is increased, the production cost is reduced, and efficiency is improved.

This invention relates to nanometer oil-saving burning device of high efficiency of environment protection. The character is in that the materials used are silica gel, soot carbon and nanometer far IR material which has nanometer titanium oxide, silicon oxide, ferric oxide, zinc oxide, aluminum oxide, magnesia, composite ceramics powder. The oil-saving device of this invention utilizes the resonance theory of the latest nanometer technology so as to thin the oil and gas molecule and to reduce the resistance when conducting electricity. This can efficiently improve the burning efficiency of oil, electricity and gas so as to recover the horsepower, lower the oil consumption, reduce the waste gas and lower the noise.

The invention discloses a control system and method for culture parameters of a bioreactor. The system comprises a main control unit, sub-control units, a tray and a cell culture bag, wherein the maincontrol unit is used for receiving parameter information set by a user and controlling each sub-control unit to perform corresponding operations according to the parameter information; the sub-control units comprise a temperature control unit, a liquid control unit, a gas control unit and a shaking control unit; the temperature control unit, the liquid control unit, the gas control unit and the shaking control unit are controlled by one main control unit. The bioreactor is different from the existing disposable bioreactor in system architecture and structural form, and each sub-control unit belongs to closed loop control, so that the whole system has high control precision, good control stability and quick system response.

The invention discloses a silk fabric coated microporous pipeline, and belongs to a microporous pipeline. The silk fabric coated microporous pipeline comprises a microporous pipe; and the outer wall of the microporous pipe is coated with a woven silk fabric, so that water penetration uniformity or oxygen dissolving rate is effectively improved, micropores are hard to block, and the silk fabric coated microporous pipeline can be widely applied to agricultural irrigation, garden greening, aquaculture oxygen increase and the like.

A novel environment-friendly oil pollution disposal device comprises a hull of an oil drawing boat. One side of the front face of the hull is provided with a first rotating shaft, and the first rotating shaft penetrates through the front face of the hull and is connected with the hull through a bearing; a plurality of rectangular water scraping plates are fixedly installed on the periphery of a chain plate, and the water scraping plates are perpendicular to the chain plate; and the periphery of a second rotating shaft is provided a lifting device capable of making the second rotating shaft swing up and down, and the lifting device is located behind the chain plate. The novel environment-friendly oil pollution disposal device is suitable for disposing oil pollution after oil leakage on thesea. When the device is in an initial state, the water scraping plates achieve an effect similar to the water pushing effect of paddles to generate leftward thrust on the hull; when the hull advancesleftwards, the load of a hull power device can be reduced; and when a user makes the motor rotate clockwise through a controller, the chain plate drives the water scraping plates to rotate clockwise at this time, the water scraping plates push water leftwards to generate rightward thrust on the hull, and the hull can be assisted in braking or backing.

The invention provides a method for reducing water eutrophication. The method is that a submerged plant and a filter freshwater bivalve mollusk are bred in eutrophic water, wherein the submerged plant comprises one or more than two selected from Myriophyllum, Elodea, Ceratophyllum, and Hydrilla varticillata, and the filter freshwater bivalve mollusk is hyriopsis cumingii. Compared with some present floating technologies, the method of the invention not only utilizes roots of the submerged plant to absorb nitrogen and phosphor, but also utilizes leaves of the submerged plant to absorb eutrophic substances in water, so the oxygen dissolving rate of water is improved; and the method of the invention has the advantages of simple operation, low cost, no secondary pollution, and generation of certain economic benefits through combining with the aquatic product culture.

The invention aims to provide a fresh and alive aquatic product storage and transportation device to increase the survival rate of aquatic products in the transportation process. The fresh and alive aquatic product storage and transportation device comprises a box body and a box cover which can be buckled to the box body in a sealed mode, and is characterized in that a partition board is arrangedat the bottom of the box body, and vent holes are uniformly formed in the partition board; a net-shaped inflating tube is arranged below the partition board, and air outlets are formed in the top surface of the air inflation tube at intervals; a pressurizing machine, an air conditioner and an oxygenerator are fixed outside the box body, an air outlet of the pressurizing machine is connected with the interior of the box body through a pipeline, and an oxygen outlet of the oxygenerator and a cold air outlet of the air conditioner run through the side wall of the box body and are communicated with the air inflation tube. The fresh and alive aquatic product storage and transportation device changes a traditional oxygen increasing mode, the dissolved oxygen amount in water is increased, therefore the water product survival rate is increased, high-density storage and transportation can be achieved, and good practicability is achieved.

The invention discloses a three-dimensional overlap-type deep-flow-channel drip irrigation soilless cultivation device. The device comprises a solution dispenser, field planting baskets with a liquidstorage function and closed cultivation pots. The solution dispenser is arranged at the top end, each closed cultivation pot comprises a bottom cover, upper covers and planting cups, the bottom coverand the upper covers have seal assembling, each planting cup is arranged on one upper cover, each planting cup is arranged obliquely, one field planting basket with the liquid storage function is placed in one planting cup, the top surfaces of the upper covers and the bottom surface of the bottom cover are separately provided with a plurality of limit overflow openings, the closed cultivation potsare overlapped from the top to the bottom, and limit overflow openings arranged in the top-end closed cultivation pots are located directly below outlets of the solution dispenser. The device provided by the invention has a three-dimensional cultivation structure, so that a sunlight utilization rate of plant growth can be improved; the device has an overlap-type drip irrigation structure, so thata solution fully absorbs oxygen in air in the circulation process; the device has an overlap-type drip irrigation and the deep flow channel structure, so that from the perspective of growth characteristics of plants, a water absorption function of a tap root system and respiration of lateral roots of the plants can be fully taken into account.

The invention discloses a material for industrial wastewater treatment. The material is made of raw materials comprising, by weight, 6-14 parts of aluminum polychlorid, 3-11 parts of lime, 6-14 parts of diammonium hydrogen phosphate, 4-8 parts of outer shell powder of a shell, 3-11 parts of ferric sulfate, 7-10 parts of closed cell perlite, 5-7 parts of microelements, 1-5 parts of powdered sulfur, 6-12 parts of bio-active humic acid, 6-8 parts of brassinolide, 1-5 parts of mycorrhizal fungi, 6-12 parts of aluminum hydroxide, 8-13 parts of gum dammar and 2.5-6 parts of pimacol. The material has the advantages that heavy metal ions can be restored, toxic substances floating in water are flocculated, and oxygen dissolving rate in water is increased.

The invention relates to the technical field of aquaculture, in particular to a high-density breeding method used for a green crab breeding pond. Green crabs are bred in the pond. The method is characterized in that a plurality of earth ridges are arranged in the pond and used for dividing a water area in the pond into continuous circulating water channels; water in the pond directionally and circularly flows in the circulating water channels; oxygenation devices used for filling the bottom of the water with oxygen are arranged in the water channels of the pond and used for providing power for water circulation; the earth ridges are provided with gentle earth ridge inclined surfaces; the slope of each earth ridge inclined surface is not greater than 1/3; aquatic weeds are planted on the earth ridge inclined surfaces. The earth ridges are arranged in the pond, so that the suitable crab breeding area in the pond is enlarged, the crab breeding density in the pond is greatly increased, and the breeding density can be increased by more than three times in comparison with that of a conventional crab pond; the earth ridges are used for dividing the water area in the pond into the continuous water channels, a water body flows, the dissolved oxygen amount is high, and the slope of each earth ridge is small, so that the crabs can be prevented from making holes.

The invention provides a biological reaction device and a biological reaction method, the biological reaction device comprises a shell, a stirring module and a jet flow module located at the bottom ofthe shell are arranged in the shell, the stirring module comprises a stirring shaft extending into the shell, and at least one radial flow paddle and at least one axial flow paddle are arranged on the stirring shaft. The biological reaction method comprises the steps that reactants are injected into the shell, the stirring module is started to perform stirring reaction on the reactants, and gas generated by the reaction enters the jet flow module through a circulating pipeline and is jetted into the shell through the jet flow module. By combining the jet module and the stirring module, mass transfer and heat transfer are better achieved, the reactants are fully mixed and react, the gas circulates in the reaction device through the circulating pipeline, the production efficiency of the biological reaction device can be effectively improved, and the biological reaction device has the advantages of being low in cost, small in occupied area, easy to maintain and the like and can be applied to the fields of food, medicine and the like.

The invention relates to an efficient and vertical fermentation tank and belongs to the technical field of fermentation devices. The fermentation tank comprises a vertical tank body, a motor, a speed reducer driven by the motor and a stirring shaft, wherein the lower end of the stirring shaft penetrates into the tank body, multiple stirring blades are arranged at the lower end of the stirring shaft at intervals, multiple helical channels sequentially are formed in the inner wall of the tank body from top to bottom, each helical channel is formed by splicing multiple helical blades fixed to the inner wall of the tank body along the central axis of the tank body in a surrounding mode and is provided with a through channel for containing the corresponding stirring blades, one stirring blade is located at the lower end of the corresponding helical channel and is same as the corresponding helical channel in helix angle, a zooming plate inclining towards the stirring shaft is arranged at the upper end of the helical channel, and the surfaces of the helical blades and the zooming plates are coated with continuous polytetrafluoroethylene coatings. The fermentation tank has the advantages that the structure is simple, and the oxygen dissolution rate can be remarkably improved without increase of stirrer diameter and rotation speed.