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3332results about How to "Increase oxygen content" patented technology

Fresh air conditioner and control method thereof

The invention provides a fresh air conditioner and a control method thereof. The fresh air conditioner comprises an air conditioner body and a fresh air device positioned at one end of the air conditioner body, wherein a primary evaporator is arranged in the air conditioner body for exchanging heat for indoor air; and an air outlet of the fresh air device is equipped with a secondary evaporator for exchanging heat of fed-in outdoor fresh air. The control method for the fresh air conditioner comprises the following steps of: starting the fresh air conditioner; obtaining an indoor air quality value; judging whether the air quality value is greater than an air quality threshold value or not; starting the fresh air device if the air quality value is greater than the air quality threshold value; obtaining outdoor environment temperature and indoor environment temperature; judging whether temperature difference between the outdoor environment temperature and the indoor environment temperature is greater than a temperature difference threshold value or not; starting the secondary evaporator for exchanging heat for outdoor fresh air if the temperature difference between the outdoor environment temperature and the indoor environment temperature is greater than the temperature difference threshold value; switching off the secondary evaporator until the temperature difference is smaller than the temperature difference threshold value; and switching off the fresh air conditioner. The technical scheme provided by the invention can be used for controlling indoor air quality while controlling the indoor temperature stably, so that good experience is given to a user.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD

Compound microorganism fungicide for improving water quality of culturing water body and preparation method

The invention discloses a compound microorganism fungicide for improving the water quality of a culturing water body and a preparation method. The compound microorganism fungicide is prepared by taking the strains by weight percent: bacillus subtilis, yeast, lactic acid bacteria, photosynthetic bacteria, nitrifying bacteria, bacillus licheniformis, and the like. The preparation method comprises the following steps of: firstly, culturing the bacillus subtilis and bacillus licheniformis: culturing the bacillus subtilis and bacillus licheniformis on a beef extract peptone culture medium; secondly, culturing the yeast: culturing the yeast on a lactic acid-potato-glucose culture medium; thirdly, culturing the lactic acid bacteria: culturing the lactic acid bacteria on a wort culture medium, inoculating on a triangular flask for culturing, and finally inoculating on a solid culture medium for culturing; fourthly, culturing the photosynthetic bacteria; fifthly, culturing the nitrifying bacteria; and sixthly, stirring and mixing the cultured strains by weight ratio, and drying at low temperature, thereby obtaining the compound microorganism fungicide. The formula is reasonable; the use is convenient; water is uniformly splashed; the method is easily performed; and the operation is convenient.
Owner:武汉合缘绿色生物股份有限公司

Method for biologically improving saline-alkali soil

The invention discloses a method for biologically improving saline-alkali soil. The method includes the steps of 1, deep ploughing and deep tilling the saline-alkali soil and making the saline-alkali soil exposed under the sun, 2, digging wells to lower the underground water level, 3, constructing tall ridges, 4, adding biological modifiers and turning over the soil after the biological modifiers are evenly broadcasted to effectively increase organic matter and nutrients in the soil, loosen the soil, enrich microbial flora in the soil, increase activity of the soil, and neutralize saline and alkaline through some activated adsorption base ions in the modifiers, and 5, planting oats to absorb part of the base ions in the soil, convert the base ions into substances needed by growth of the oats and reduce the content of saline and alkaline of the soil. The method can be suitable for saline-alkali soil formed due to different factors, and the saline-alkali soil is improved through physical measures, water conservation measures, utilization of the biological modifiers and plantation of the oats. The method has the advantages that improvement economic benefits can be achieved early, operation is easy to conduct, promotional reproductively is high, improvement is sustainable, effects can be accumulated, in situ saline-alkali soil improvement can be achieved, and improvement cost is reduced.
Owner:SHANGHAI CHUANGBO ECOLOGICAL ENG

Stereo artificial wetland system for treating sewage

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment tridimensional artificial wetland system that is used for the industrial waste water treatment of small-scale isolated pollution sources. The invention aims at providing a tridimensional artificial wetland system that is used for sewage treatment and that has small floor occupancy, high hydraulic load, high pollution load and long service life so as to overcome the defects of the current sewage treatment of big artificial wetland floor occupancy, low hydraulic load, low pollution load and short system service life. The key points of the invention are that: the artificial wetland for sewage treatment adopts a tridimensional assembled structure of vertical current artificial wetland and horizontal subsurface flow artificial wetland, and base materials are filled in various directions to form the tridimensional artificial wetland system for sewage treatment; the tridimensional artificial wetland system for sewage treatment comprises a water collecting header, a porous water-filtering vertical current artificial wetland bed, a first-stage regulating tank, a water drop chute, a grid tank, a second-stage regulating tank, a horizontal subsurface flow artificial wetland bed and a water collecting tank.
Owner:ZHEJIANG NORMAL UNIVERSITY

Grading recycle device for electric flocculation and electric floatation purification bathing and washing wastewater

The invention discloses a grading recycle device for electric flocculation and electric floatation purification bathing and washing wastewater, which is characterized in that one part of effluent from a wastewater collecting tank, passing through a tee joint, is used as front end effluent to be directly output, and the other path is serially connected with a Venturi tube, the wastewater outlet of the Venturi tube is connected with an electrolytic bath, the throat tube of the Venturi tube is communicated with an air inlet tube with a filter casing; the electrolytic bath is set to be an iron promoted dual-anodic oxidization unit which has a structure that a Tl/SnO2 anode and an Fe anode are respectively arranged at two sides of a cathode to form a combined anode, and the cathode adopts an air diffusion electrode; the wastewater outlet of the electrolytic bath is serially provided with a two-stage filtering unit, a primary filtering chamber of the two-stage filtering unit is provided with a primary wastewater outlet valve, and a secondary filtering chamber of the two-stage filtering unit is provided with a secondary wastewater outlet valve. The invention can effectively reduce or remove surface activating agents and other organic pollutants in washing/bathing wastewater to ensure that the bath/washing wastewater is recycled by stages.
Owner:NANJING UNIV

Photosynthesis microorganism fuel cell

A photosynthetic microbial fuel cell belongs to the technical field of microbial fuel cells. The photosynthetic microbial fuel cell is composed of two electrode chambers, namely, a cathode chamber and an anode chamber which are connected with each other by a proton exchange membrane. Each electrode chamber is filled with a fixed amount of anode chamber solution and a fixed amount of cathode chamber solution; photosynthetic microbes are adsorbed on the anode surface and degrade organic wastes and heavy metal wastewater, and simultaneously perform photosynthesis and release electrons and protons. The photosynthetic microbes transfer the electrons to the anode, and the protons enter the cathode by the proton exchange membrane and mix with oxygen in the air to generate water. The electron transfer between the electrodes produces voltage between the electrodes and supplies power to an external circuit. The photosynthetic microbial fuel cell has the advantages of no additional electron transfer medium, improving the oxygen content of the cathode surface without the external power, culturing the photosynthetic microbes (algae and photosynthetic bacteria) without additional nutrients and simultaneously generating electric energy by the anode, and simple cell structure. Adding wastewater to the anode not only can improve the electric energy, benefit the growth and reproduction of the photosynthetic microbes, save the cost, but also can relieve part of the pollution and produce the hydrogen and methane.
Owner:UNIV OF SCI & TECH BEIJING

Method of preparing high-performance powder metallurgy product by coating alloy powder with organic matter

The invention provides a method of preparing a high-performance powder metallurgy product by coating alloy powder with an organic matter, and belongs to the field of powder metallurgy. The method comprises the following steps that the surface of the alloy powder is coated with a layer of an organic matter film by a solution coating method, the organic matter is dissolved in a solvent, a layer of aliquid film is formed on the surface of the alloy powder, after the solvent is removed, the alloy powder can be uniformly coated with the organic matter, any chemical reactions are not required, thesurface of the alloy powder is coated with the layer of the organic matter film, and the purpose that the easy-to-oxidize alloy powder is isolated from oxygen is achieved. The possibility that the surface of the easy-to-oxidize alloy powder can react with the oxygen is very high, the mechanical performance of a formed alloy component is relatively poor due to the increase of the oxygen content inthe forming process, and the organic matter is used for coating, so that the oxygen control effect in the forming process can be achieved effectively; and the oxidation resistance of the alloy powdercan be improved through the coating treatment in the forming process, so that the relatively low oxygen content and the good mechanical performance are advantageously kept after the forming is carriedout.
Owner:UNIV OF SCI & TECH BEIJING

Method and apparatus for controlling secondary pollutants in biodrying of mixed domestic waste

The invention relates to a method and apparatus for controlling secondary pollutants in biodrying of mixed domestic waste. The method comprises the following steps: (1) simple pretreatment; (2) stacking; (3) biodrying of waste; (4) back spraying of leachate; (5) drying, reflux and concentrated treatment of tail gas. The apparatus comprises a sealed reactor, a leachate collector, a ventilating system and a tail gas treating device, wherein, the leachate collector is respectively connected with a leachate collecting pipe and a spray pipe in the reactor through pipelines, the tail gas treating device comprises a tail gas recovering pipe, a drying box, a tail gas treating fan and a purifying means, the tail gas recovering pipe is connected with the drying box, the drying box is respectively connected with a ventilating fan and the tail gas treating fan, and the tail gas treating fan is connected with the purifying means through a pipeline. According to the invention, the leachate does not need to be treated individually; tail gas is collected in a totally enclosed environment, and the amount of tail gas to be treated is small; a low heating value of obtained dried waste is increased by 100%; the invention is widely applicable to mixed waste with high water content and enables resource values of burning and sorting of domestic waste to be improved.
Owner:CHINA URBAN CONSTR DESIGN & RES INST CO LTD
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