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286results about How to "Remove inhibition" patented technology

Impact-resistant multiplication combined type coking waste water treatment process

An anti-impact multiplying combination coking wastewater treatment technique relates to a treatment method of coking wastewater. The coking wastewater is first qualified by a physical-chemical pretreatment to improve biodegradable property of wastewater; the composite technology of a biological carrier of active sludge is adopted to do anaerobic/hypoxia/aerobic decarbonization/aerobic nitrification biochemical combination treatment; suspended or floating folding ball-shaped fillings are arranged in biochemical reactors and when micro organism traits are abnormal or a great amount of foams existing in the reactor, micro organism active incentive agents are added to the reactor in interval to improve active sludge traits and organism film quantity; finally the water is treated by a physical-chemical advanced treatment to reach a top grade standard. The invention not only strengthens the removal of COD, ammonia-nitrogen, volatile phenol and other pollutants in the coking wastewater by biochemical treatment but also resists serious water quality impact and has the advantages of quick system startup, less foams in an aeration tank, small occupying space, low operation cost and stable and effective treatment to coking wastewater.
Owner:TONGJI UNIV +1

Automobile active anti-collision radar based on pseudorandom code and linear frequency modulated continuous wave

The invention relates to an automobile active anti-collision radar based on pseudorandom code and linear frequency modulated continuous wave, belonging to the field of automobile radar, comprising a pseudorandom code and linear frequency modulated control signal generator, a pseudorandom code and linear frequency modulated continuous wave emitter, a sending antenna, a receiving antenna, a low-noise amplification mixed frequency receiving channel, a linear frequency modulated signal processing and pseudorandom code multi-path parallel correlation processor, a parallel data processor and an executing terminal. The pseudorandom code is used for modulating the phase of radar carrier wave and performing linear frequency modulation to the radar carrier wave so as to form a double-modulation emitting signal. Two systems are combined, so that the inhibition ability of interference echo is improved; the false alarm caused by false targets is removed; different codes of different automobile radars are achieved; the interference caused by the automobile radar is removed; the detection ability of the active anti-collision radar is improved; the false alarm rate is improved; and the inhibitionability under complex road condition is good.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY +1

Method and system for treating industrial wastewater of photovoltaic solar cell plates

The invention discloses a process for treating industrial wastewater of photovoltaic solar cell plates. The process comprises the following steps of: collecting wastewater, namely collecting acid wastewater and alkaline wastewater respectively; regulating pH, namely adding strong acid or strong base into the acid wastewater, alkaline wastewater or acid-alkaline mixed wastewater mixed by the acid wastewater and the alkaline wastewater, and regulating the pH value to be between 8.0 and 8.5 to form conditioning fluid; defluorinating the conditioning fluid and/or removing chemical oxygen demand (COD) from the conditioning fluid, wherein the defluorinating step means throwing calcium salt into the conditioning fluid so as to remove fluorion from the wastewater, and the COD removing step means performing incomplete anaerobic reaction on the conditioning fluid; performing aerobic biological treatment; and sequentially completing the steps to discharge the wastewater meeting the discharge standard. The invention provides a treatment process aiming at the water quality characteristics of the industrial wastewater of the photovoltaic solar cell plates and main design operational parameters.By a treatment system, the fluorion can be effectively removed, the fluorion concentration of effluent can be reduced to be below 10mg/L, and the wastewater CODCr is below 300mg/L and meets the discharge standard. Meanwhile, the invention also provides a system for treating the industrial wastewater of the photovoltaic solar cell plates.
Owner:BEIJING GUOHUAN TSINGHUA ENVIRONMENT ENG DESIGN & RES INST CO LTD BEIJING CHINA

Fixed enzyme membrane reactor, preparation thereof and method for producing biological diesel oil by the same

The invention relates to an immobilized enzyme membrane reactor and the preparation thereof and a method for producing bio-diesel. The method comprises filling superfine fiber complex film in a die whose inside and outside are double cylindrical shape to form a film reactor, injecting activating agent solution and lipase solution in the film reactor in turn through adopting a cross-flow filtration mode, leading lipase to be chemically fixed on superfine fiber membrane surface, getting an enzyme membrane reactor which is fixed with lipase, respectively injecting mixed solution of animal and vegetable oil and carbinol in the inner side and the outer side of the superfine fiber complex film, doing catalytic alcoholysis reaction on fiber membrane surface, and producing bio-diesel. The enzyme gathering catalysis of the method of the invention is integral with a membrane separation process, and the method of the invention simplifies manufacturing technique, and meanwhile, the method of the invention overcomes inhabitation of lower alcohol to enzymatic activity in the process of catalyzing, the immobilized enzyme membrane reactor can be repeatedly used, which can achieve continuous production, improves production efficiency, and has excellent industrial application prospect.
Owner:ZHEJIANG UNIV

Method for separating agricus bisporus polysaccharides from agricus bisporus and determining method thereof

The invention relates to a method for separating agricus bisporus polysaccharides from agricus bisporus, which comprises the following steps: carrying out vacuum freeze-drying on the agricus bisporus for 24h; extracting crude polysaccharides with hot water: adding distilled water, boiling with big fire, maintaining with slow fire, centrifuging, taking supernatant liquid, precipitating, placing back into a heating device, adding water for continuous heating till boiling, maintaining with the slow fire, re-centrifuging and taking the supernatant liquid; repeating for three times, and using the distilled water for fixing volume of the obtained supernatant liquid for standby; carrying out dual-water phase extraction operation: precisely weighing 2.66g of polyethylene glycol (PEG) 6000 and 4.28g of ammonium sulfate, adding into a 50mL centrifuge tube, adding 20mL of sample diluent, and evenly mixing; simultaneously weighing 2.66g of PEG 6000 and 4.28g of ammonium sulfate, adding into the 50mL centrifuge tube, adding 20mL of distilled water, evenly mixing, and obtaining the agricus bisporus polysaccharides distributed in the PEG phase. The utilization of a dual-water phase system for extracting the agricus bisporus polysaccharides can realize the maximum yield of 80.1%, and the yield can achieve 17.45mg/g.
Owner:天津市金三农农业科技开发有限公司

Trichoderma viride W2 capable of producing thermophilic ethanol-resistant beta-glucosidase and application thereof

The invention discloses a trichoderma viride W2 capable of producing a thermophilic ethanol-resistant beta-glucosidase and an application thereof. The trichoderma viride W2 is preserved in the China General Microbiological Culture Collection Center (CGMCC) on August 23, 2010, and the preservation number of the trichoderma viride W2 is CGMCC No.4098. The trichoderma viride W2 can produce a new beta-glucosidase, the enzymatic activity of the new beta-glucosidase reaches 346.7U/mL, the optimal reaction pH value is 4.8, the optimal reaction temperature is 70 DEG C, and the new beta-glucosidase is suitable for pyrohydrolysis and has an obvious glucose feedback inhibition effect. The ethanol the concentration of which is 10% has a maximal effect on promoting the enzymatic activity and improves the enzymatic activity of the beta-glucosidase by 1.6 times, and the resistant ability of the ethanol reaches 30%, so that the cellobiose inhibition can be effectively eliminated, the yield of the ethanol is improved by nearly 3 times, and the terminal product inhibition is effectively eliminated. Thus, the beta-glucosidase can be used for simultaneous saccharification and fermentation of lignocellulose raw materials, has a rare promoting effect in China, effectively increases the yield of the cellulosic ethanol, lowers the production cost, and accelerates the industrialized progress of the cellulosic ethanol.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI

Method for preparing xylonic acid (salt) through whole-cell high-efficiency catalysis of xylose transformation

The invention discloses a method for preparing xylonic acid (salt) through whole-cell high-efficiency catalysis of xylose transformation. The method comprises the following steps of: adding an initial reaction matrix into a liquid deep-layer ventilation reaction system; inoculating gluconabacteriumoxydonas; stirring and ventilating to continuously react; keeping dissolved oxygen concentration of the reaction system not less than 10 percent; adding xylose or xylose solution into the reaction system in a semi-continuous or continuous batch adding mode; controlling mass concentration of xylose in the reaction system to be not greater than 25 percent; synchronously adjusting and controlling the pH value to be not less than 2.8; stopping adding when the mass concentration of the xylose accumulatively added into the reaction system reaches 30 percent; and continuously performing full catalytic reaction to obtain a transformed product, i.e., the xylose acid (salt) product. According to the method, the maximum value of the accumulative concentration of the substrate xylose can reach 30 percent, the maximum utilization rate of the xylose exceeds 99 percent, the maximum concentration value of the fermentation product, i.e., the xylose acid (salt), can reach 29.8 percent, and the transformation ratio of the xylose acid (salt) can reach 100 percent.
Owner:NANJING FORESTRY UNIV

Method for preparing fuel of ethanol from immobilized mixed strain fermented cellulosic hydrolysate

The invention relates to a method for preparing fuel of ethanol from immobilized mixed strain fermented cellulosic hydrolysate, which is characterized by utilizing mixed strains of P. tannophilus and S. cerevisilae to graft into diluted acid hydrolysate and fermenting the mixed solution by a supplemented material batch fermentation mode. The method is realized by the following steps: (1) domestication of the P. tannophilus and the S. cerevisilae; (2) immobilization of the mixed strains by calcium alginate; (3) multiplication culture of the immobilized mixed strains; and (4) supplemented material batch fermentation of the immobilized mixed strains. The immobilized mixed strains can be fermented while using xylems and glucose in the hydrolysate for fermentation, thereby the fermentation period is shortened, the utilization ratio of the xylose and the glucose is improved and the ethanol concentration is increased; the immobilized mixed strains can be repeatedly used and have strong anti-hybrid bacteria capability; the supplemented material batch fermentation mode is applied to hydrolysate with cellulose raw material for producing the fuel of ethanol, thereby reducing inhibiting factors in the hydrolysate; and the method is beneficial to thoroughly eliminating the inhibition on substrates, diluting poisonous metabolite, reducing contaminated bacterial, controlling the fermentation time and preventing the generation of side products.
Owner:BEIJING UNIV OF CHEM TECH

Method for producing ethanol by continuous enzymolysis and fermentation of lignocellulose

The invention relates to a method for producing ethanol by continuous enzymolysis and fermentation of lignocelluloses. The method comprises the following steps: (1) a pretreated lignocellulose raw material and an enzyme solution are added in proportion into an enzymolysis reactor with a screw device to carry out continuous enzymolysis; (2) the materials enter a fermentation tank I after enzymolysis, and microzyme is inoculated to carry out simultaneous saccharification and fermentation at 30-38 DEG C; (3) the materials in the fermentation tank I enter a fermentation tank II, and simultaneous saccharification and fermentation are continuously carried out at 39-44 DEG C; (4) the fermented materials undergo reduced pressure distillation; and (5) the distilled materials undergo solid-liquid separation, and an enzyme-containing liquid phase is reused in the step (1). By the use of the screw device, continuous supply and continuous enzymolysis of the raw materials are realized, and enzymolysis efficiency is enhanced. As simultaneous saccharification and fermentation are carried out at different temperatures, enzymolysis efficiency is further improved and yield of ethanol is then raised. The finally-obtained enzyme solution can be directly reused in the enzymolysis process, thus reducing production cost.
Owner:CHINA PETROLEUM & CHEM CORP +1
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