66 results about "Physicochemical Processes" patented technology

Eicosapentaenoic acid (EPA) compositions and EPA-rich polar lipids for prophylactic or therapeutic applications are described. Production from certain cultured micro-organisms (like Nitzschia laevis) promotes synthesis of EPA, including polar lipids including EPA. The EPA-rich polar lipids themselves may be used as polar compounds. EPA can be selectively hydrolysed from particular positions in isolated polar lipids by lipase activity, then optionally further purified. The process bypasses reliance on diminishing fish stocks and on physico-chemical processes that may not adequately separate desirable n-3 HUFAs from unwanted products like DHA also found in fish oil and cultured organisms.

The invention relates to a fixed burning source emission particulate sampling system, which comprises an off-gas inlet system, a second diluter, a setting house and a sampling system positioned on the lower part of the setting house. It arranges a compressed air system on the first diluter and a sampler outlet with gas flow gauge and a superfluity gas outlet with gas flow adjusting valve on the outlet end; it arranges a dilution air supplying system and a gas flow gauge on the outlet of the second diluter and a plurality of pressure balance holes around the lower part of the setting house.

The invention provides a micro-nano machining method based on an electrochemical micro-nano system for a functional material and a device thereof. According to the method and the device, a functional material of a micro-nano scale can be synthesized in situ on a specific substrate or a micro-nano chip for constructing an all-solid-state micro-nano device. The method comprises the following steps of: constructing an electrochemical reactor of a micro-nano scale to limit a physical-chemical process for synthesizing the functional material in a space of a micro-nano scale; and regulating and controlling a micro-area physical-chemical environment on a conducting substrate or a chip to be processed to synthesize the functional material of the micro-nano scale in situ on the conducting substrate or the micro-nano chip. The device comprises an electrochemical reactor of a micro-nano scale, an electrochemical workstation, a three-dimensional inching system of micro-nano accuracy, a video monitor and an information processing computer.

The invention relates to the technical field of industrial wastewater processing, and specifically relates to a method for processing viscose fiber production wastewater. A large amount of acidic and alkaline wastewater is generated during production of viscose fiber, and severe water pollution and loss and waste of a large amount of fiber source are caused by direct discharge of the wastewater. The method for processing viscose fiber production wastewater is a technology formed by adding a processing technology combining shallow-layer air floatation and iron chip filtering on the basis of a processing technology combining a physicochemical process and a biochemical process. The beneficial effects generated by execution of the technical scheme comprise that source is utilized, cellulose in production wastewater of viscose fiber is recovered, fixed investment is reduced, production cost is reduced, and the quality of processed water can steadily reach national first-level discharge standard.

A waste treatment process comprised of an ammonification system to convert soluble organic nitrogen into ammonia nitrogen, followed by a physico-chemical process to remove a substantial amount of the ammonia as a recovered ammonium sulfate fertilizer or ammonium hydroxide (“aqua ammonia”), and followed by an ammonia oxidation process to oxidize the remaining ammonia from the physico-chemical process. The process reduces ammonia and carbonaceous organic matter to less than 10 mg/l and recovers ammonia in the form of either ammonium sulfate or ammonium hydroxide.

A method is provided for improving a photolithographic simulation model of the photolithographic simulation of a pattern formed on a photomask. Proceeding from a two-dimensional simulation model that takes account of the physical-chemical processes during lithography, a frequency-dependent intensity loss is calculated which is determined by multiplication of the simulated intensity distribution in the Fourier space by a filter function. An accurate calculation of the intensity distribution in the substrate plane is obtained. This method achieves the accuracy of three-dimensional models with a significantly shorter processing duration and is further suitable in particular for the calculation of OPC structures.

The invention discloses a surface microstructure-forming system based on coherent laser. The surface microstructure-forming system based on coherent laser comprises a laser generator, a beam-shaping module, a first semireflector and a second total reflector which are sequentially connected along a light path, an electrically controlled movable operating platform is arranged under the first semireflector and the second total reflector, a matrix is placed on the electrically controlled movable operating platform, the first semireflector and the second total reflector are provided with servomotors, and the electrically controlled movable operating platform, the servomotors and the laser generator are connected with a computer. The surface microstructure-forming system based on coherent laser can ensure that melting, convection, vaporization or other physical and chemical processes can take place on the material of the specified part of the surface of the matrix, so that the surface shape of the material can be changed, and thereby a needed periodic surface can be formed; and the technical means disclosed by the invention is simple and feasible, has a positive significance, and is convenient to popularize and apply.

The invention discloses a leather making method for magnetically processing leather making water and a leather chemical water solution into nanometer small-molecule water to be combined with an ultrasonic wave enhancement technology. The leather making method is characterized in that the magnetized nanometer small-molecule water is combined with the ultrasonic wave enhancement technology to be applied to each leather making procedure, so that the efficiency of the physiochemical process of each leather making procedure can be improved, the consumption of chemical materials is reduced, environmental pollution caused by the emission of harmful drugs and industrial wastewater is reduced to the maximum extent, the use quantity of water is greatly saved, the waste of water is decreased in the leather making process, and the production cost is reduced, so that the leather making method is a reform of the traditional leather making method and provides a new effective path for the developmentof the leather industry.

The invention provides a preparation method for a shine skin papaya juice beverage. The unpleasant tastes, such as, sour, astringent and bitter, of the shine skin papaya juice can be overcome through the key physicochemical processes of color-protecting, de-astringent, enzymolysis, and the like. In the whole process, any flavor raw materials, such as, juice and tea, are not added; the unique flavor of the papaya juice is extremely reflected; and the prepared shine skin papaya juice beverage is unique in formula and flavor.

The invention provides a novel method for estimating the environment capacity of fine particles and precursors of the fine particles. The novel method comprises steps as follows: obtaining the total atmosphere static capacity; obtaining the total conveying quantity of pollutants in the horizontal direction; obtaining the total quantity of dry deposition and the total quantity of wet deposition and obtaining the total quantity of deposition through summation; obtaining the total quantity of horizontal diffusion and the total quantity of vertical diffusion, and obtaining the total quantity of diffusion clearing through summation; obtaining the atmosphere dynamic capacity through summation of the total conveying quantity in the horizontal direction, the total quantity of deposition and the total quantity of diffusion clearing; performing summation on the total atmosphere static capacity and atmosphere dynamic capacity, performing correction and obtaining the corrected environment capacity of the pollutants. The method has the advantages as follows: the containing capability of the atmosphere to the pollutants is quantified through generation, conversion, extinction and other physical and chemical processes on the pollutants, and the environment capacity of the fine particles and the precursors of the fine particles has the characteristic of spatiotemporal dynamics; when the provided method is used for estimating the environment capacity of the atmospheric pollutants, the result more approaches the real monitoring value. The method further has the advantages of simple and rapid estimation process and small calculated quantity.

The invention discloses an air-permeable full-degradable plastic film which adopts polyvinyl alcohol and high gluten flour as main film forming matters. Compared with the traditional technique, the air-permeable full-degradable plastic film is characterized in that a physicochemical process is adopted to modify nano silicon dioxide and the high gluten flour, and the other effective components are matched, so that hydroxy groups in the high gluten flour and polyvinyl alcohol molecules can be preferentially combined with a right amount of hydroxy groups on the nano silicon dioxide surface to form hydrogen bonds, thereby enhancing the compatibility between the high gluten flour and polyvinyl alcohol; and part of hydroxy groups in the high gluten flour and polyvinyl alcohol are sealed to improve the water resistance of the film. The prepared full-degradable plastic film has the advantages of high degradation ratio, favorable film-forming property, favorable air permeability, excellent thermoplastic processibility, low cost and simple technique, and is beneficial to environmental protection.

The invention discloses an advanced landfill leachate treatment method which comprises a pre-treatment system, a positive osmosis separation system+a reverse osmosis separation system, and a MVR system. The advanced landfill leachate treatment method comprises the following steps: landfill leachate raw water enters the positive osmosis system for concentration after pre-treatment, namely mechanical filtration and pH adjustment, to obtain a concentrate and a diluted extracting solution; the diluted extracting solution enters the reverse osmosis system for effluent discharge after interception,the concentrate enters the MVR system for further concentration and solid-liquid separation, and ammonia nitrogen enriched in the MVR system can be recovered after being made into ammonium salt by anammonia nitrogen absorption system. The advanced landfill leachate treatment method disclosed by the invention has the benefits that the osmosis, the system and other physicochemical processes are adopted; the technological process is short and can realize the whole-process automatic control operation; the advanced landfill leachate treatment method is different from a biochemical treatment system; the advanced landfill leachate treatment method is less affected by human management factors and is more stable in treatment effect and low in operating strength; the MVR system is small in occupiedspace and less in process equipment input; due to the omission of biochemical processes and no need of adding pharmaceutical agents, the investment and operation cost are relatively low.

The invention relates to a composite material, a method for controlling the thermal effects generated in a physicochemical process using said material, and applications of the material and the method.

The composite material comprises an active solid and a phase change material. The phase change material takes the form of micronodules having an average size of between 1 micron and 5 millimeters and it is selected from materials with a liquid/solid phase change temperature of between −150° C. and 900° C. The active solid is selected from solids that can be used in a method involving reversible physicochemical processes that are exothermic in one direction and endothermic in the opposite direction.

The invention specifically relates to a method for recovering a protein from heparin sodium extraction waste liquid, which comprises the following steps: adding an aluminum salt solution in heparin sodium extraction waste liquid, and stirring; after uniformly stirring, adding a flocculant solution, and stirring; when a large amount of flocculent precipitate appears, standing; drawing off the supernatant, and collecting the precipitate; and drying to obtain the protein. According to the invention, the used polyaluminum chloride product has high bridging adsorbability, and physical and chemical processes such as condensation, adsorption, precipitation and the like are accompanied in the hydrolytic process. The polyaluminum chloride structurally comprises a shape-variable multi-element carboxyl complex, has a high flocculent precipitation speed and a wide applicable pH value range, and causes no corrosion to pipeline equipment. The high molecular weight polyacrylamide forms bridges among the adsorbed particles to generate flocs, thereby being beneficial to settling of the particles; and the polyacrylamide is low in consumption, high in efficiency and easy to realize post treatment.

The invention discloses a printing and dyeing sewage classification treatment process. Printing and dyeing sewage is divided into two broad categories of chemical fiber sewage and cotton comprehensivesewage, the chemical fiber sewage is divided into two sub-categories of alkali-reduced sewage and chemical fiber general sewage, and then treatment is carried out; an alkali-reduced filtrate is incorporated into a chemical fiber general filtrate, subsequent physicochemical process is carried out after adjustment, a medicament can be effectively saved, and thus the operation cost is reduced; the cotton comprehensive sewage is subjected to alkaline process treatment, and is use as an alkali source for reversed adjustment of a mixed sewage III, and thus an alkali use amount of chemical fiber sewage can be saved; cotton desizing sewage, cotton printing sewage and cotton dyeing sewage are combined into one category of sewage, namely the cotton comprehensive sewage, the concentration of pollutants can be averaged each other through mixing of three kinds of sewage, and treatment difficulty is reduced; at the same time, a construction area is reduced; and a pH value of the cotton comprehensive sewage can be controlled centrally to create prerequisites for the next step of mixing with the mixed sewage III.

The invention relates to a high-efficiency beet sugar-manufacturing wastewater treatment system. The system is characterized by comprising an anaerobic baffled reactor and a biological aerated filter, wherein the anaerobic baffled reactor comprises a plurality of reaction chambers which are separated by vertical deflectors and are communicated in series; an air and water mixing chamber is arranged at the bottom part of the biological aerated filter; a plurality of long handle filter heads are installed at the top part of the air and water mixing chamber; an aerator pipe is arranged above the long handle filter heads; a cushion layer and a filter material layer are arranged above the aerator pipe; a water outlet pipe and a backsurge water outlet pipe are arranged on the side wall of the biological aerated filter above the filter material layer; and the water outlet of the anaerobic baffled reactor is connected with the water inlet pipe of the biological aerated filter. The system adopts the combined processes of physicochemical process and biochemical process and leads the beet sugar-manufacturing wastewater after desanding-precipitating to get through the anaerobic baffled reactor and the biological aerated filter, thus causing the processed effluent quality to meet the primary standard of the integrated wastewater discharge standard (GB 8978-1996).

The invention relates to a low-shearing rotational flow air flotation device for removing suspended matters. The device comprises an inflow coagulation system, a rotational flow chamber and a pressurizing air injection system. The sewage containing the suspended matters and a coagulation drug are tangentially pumped into the rotational flow chamber and are mixed along a same direction under the effect of weak centrifugal force; when the mixture moves to an air injection section, micro-bubbles and the suspended matters are thoroughly collided, adhered and formed into a flocculating constituent; and the flocculating constituent is upward discharged along with the overflow and the clean water phase is discharged from the bottom. According to the invention, the efficient separation of suspended matters and water is realized through a series of physical and chemical processes; the whole set of device is free from motion part, is high in processing capacity, is convenient in operation and is stable in running; the low-shearing rotational flow air flotation device for removing suspended matters can be popularized and applied to chemical engineering and environmental protection industries.