49results about How to "Little change in concentration" patented technology

The invention discloses an advanced redox innocent treatment system and method for waste pollutants, belonging to the technical fields of pollution treatment and restoration and environmental protection. The innocent treatment system comprises a waste degradation subsystem, a waste liquid treatment subsystem, an ozone water preparation subsystem, a degradation reagent addition subsystem, a detection control subsystem and a water level control subsystem. The method comprises the following steps: determining the type of waste pollutant, selecting the degradation reagent, pouring the waste pollutant into a treating pond, carrying out advanced redox treatment on the waste pollutant, carrying out innocent treatment on the treated waste liquid, reutilizing, and carrying out biodegradation treatment on the treated soil. The system and method have the advantages of obviously higher degradation efficiency and short time consumption, can treat organic pollutants within 2-3 days, can treat heavy metal pollutants within 3-5 days, greatly shorten the pollutant treatment time, and lower the cost by more than 70%.

The invention discloses a device and a method for quickly detecting rice mildewing. The device comprises a data acquisition device and a computer, wherein the data acquisition device comprises a microprocessor, a sample chamber, a gas chamber, a gas-sensitive sensor array and a first gas pump; an upper communication pipe and a lower communication pipe are arranged between the sample chamber and the gas chamber; a gas inlet is formed in the gas chamber; the gas inlet is connected with the first gas pump through a first gas inlet pipeline; a first solenoid valve is arranged on the first gas inlet pipeline; a gas outlet and a second gas pump are arranged on the upper communication pipe; a gas outlet solenoid valve is arranged on the gas outlet; the air-sensitive sensor array is arranged in the gas chamber. According to the method, rice volatilization gas is detected through the gas-sensitive sensor array, the microprocessor is used for sampling response signals generated by gas-sensitive sensors, and the computer is used for processing sampling values, calculating dynamic classification parameters delta through a nonlinear random resonance algorithm and a nonlinear self-calibration dynamic classification model so as to judge if rice is mildewed. The device and the method can be used for quickly and accurately detecting if the rice is mildewed.

The invention discloses a vinegar flavor analysis device and a vinegar flavor analysis method. The vinegar flavor analysis device comprises a data acquisition device and a computer, wherein the data acquisition device comprises a microprocessor, a sample chamber, an air chamber, a gas-sensitive sensor array and a first air pump; an upper communicating pipe and a lower communicating pipe are arranged between the sample chamber and the gas chamber; an air inlet is formed in the air chamber; the air inlet is connected with the first air pump through a first air intake pipeline; a first electromagnetic valve and an activated carbon filter screen are arranged on the first air intake pipeline; an air outlet and a second air pump are arranged on the upper communicating pipe; a fourth electromagnetic valve is arranged at the inlet in the top of the air chamber; an air outlet electromagnetic valve is arranged at the air outlet; the gas-sensitive array is arranged in the air chamber. According to the method, the gas-sensitive sensor array is utilized to detect the volatilized gas of vinegar, the microprocessor samples the response signal generated by a gas-sensitive sensor, and the computer processes the sampling value and judges the flavors of vinegar. According to the invention, the flavors of different types of vinegar can be distinguished, so that a manufacturer can conveniently analyze and manage the flavors of vinegar.

The invention discloses a wet-process defluorination method for phosphoric acid. The method comprises the following steps: adding fluorine-containing phosphoric acid into a defluorination tower from the top of the defluorination tower, adding steam into the defluorination tower from the bottom of the defluorination tower, subjecting the fluorine-containing phosphoric acid and the steam to countercurrent contact, and allowing fluoride in the fluorine-containing phosphoric acid to enter a gas phase and to be discharged out of the defluorination tower along with the steam so as to obtain defluorinated phosphoric acid, wherein the defluorination tower is divided into an upper tower and a lower tower, the absolute pressure of the upper tower is 15-20 KPa, the absolute pressure of the lower tower is 20-30 KPa, and a pressure difference of the upper tower and the lower tower is smaller than or equal to 10 KPa. The defluorination method of the invention is good in defluorination effect, low inphosphoric acid consumption, low in phosphorus loss and small in phosphoric acid concentration change before and after defluorination.

The invention discloses a compost fermentation tank. The compost fermentation tank is characterized by comprising an outer tank body and an inner tank body, wherein the inner tank body is internally arranged in the outer tank body; the part between the outer tank body and the inner tank body is filled with a thermal insulation material; the top of the outer tank body is connected with a head cover; the head cover is connected with a gas recovery pipe and an exhaust pipe; an air supply device is arranged at the bottom of the inner tank body; and an input end of the air supply device penetrates out of the inner tank body and the outer tank body. The part between the outer tank body and the inner tank body is filled with the thermal insulation material, the air supply device is arranged at the bottom of the inner tank body, and the head cover is connected with the gas recovery pipe and the exhaust pipe, so that a compost can be fermented in proper temperature and humidity environments; the generated fermentation gas is small in concentration change amplitude; collection of the fermentation gas through the gas recovery pipe is simple and convenient, and an error caused by an environment change is reduced; meanwhile, the condition that the internal pressure of the tank body is in a safety range is ensured through the exhaust pipe; and the accuracy of online real-time measurement and laboratory detection of the fermentation gas is achieved.

The present invention comprises an arrangement and a method for measuring cell vitalities with a sensor array. The sensor array is formed on a surface of a semiconductor chip (1), wherein the semiconductor chip (1) comprises integrated circuits and an integrated circuit is associated with each sensor (2) of the sensor array, for processing the measurement signals of the respective sensor (2). The integrated circuits are formed in the semiconductor chip (1) spatially in each case below the associated sensor (2) and neighbouring sensors (2) of the sensor array have a centre-to-centre spacing of the neighbouring sensors (2) in the range of micrometres. The pH and/or pO2 can be measured in the environment of a living cell (4).

The present invention discloses Ni(OH)2-Co2(OH)3Cl composite nanometer array electrode materials suitable as supercapacitor electrode materials, belonging to the field of electrode material technology. The preparation of the materials comprise the steps of: mixing nickel salt, urea and ammonium fluoride, dissolving the mixed materials into water, and preparing A reaction solution; adding the A reaction solution into a high-pressure autoclave, then putting pretreated foam into the high-pressure autoclave, controlling a reaction temperature and time, and obtaining an Ni(OH)2 nano array; and dissolving cobalt salt into water to prepare B reaction solution, putting the prepared Ni(OH)2 nano array into the B reaction solution, controlling the reaction temperature and time, and obtaining an Ni(OH)2-Co2(OH)3Cl composite nanometer array. The obtained Ni(OH)2-Co2(OH)3Cl composite nanometer array electrode materials have excellent electrochemical performance, and a specific capacitance can reach680.29F/g when a current density is 1.0 A/g.

The invention discloses an indigo carmine colorant as well as a preparation method and applications thereof. A mixed solution of indigo carmine and antioxidants contains 0.1%-1%(weight/volume percent concentration, g/100ml) of indigo carmine, the antioxidants are selected from one or combinations of ascorbic acid, tea polyphenols and phytic acid, and the amount of addition is 0.05%-0.5%(weight/volume percent concentration, g/100ml). The indigo carmine colorant has advantages as follows: a product is greatly improved in stability, is easy to use and store, and has a good clinical effect; the safety performance is high, and the clinical risk is low; the operation is simple. A prepared indigo carmine solution can be directly used in clinical treatment, dilution and other additional operations are not required, a clinical operation process is greatly simplified, and defects of a colorant obtained with an immediate preparation and use method in the prior art are solved.

The invention belongs to the field of seed vitality measurement and discloses a seed vitality measuring system based on a laser absorption spectrum technique and a method. The seed vitality measuringsystem comprises a tunable semiconductor laser system and an optical absorption tank, wherein the tunable semiconductor laser system is used for providing tunable wavelength laser; the optical absorption tank is sealed and internally provided with quantum to be measured; an incidence light hole and an outgoing light hole are formed in the optical absorption tank; an incidence optical fiber is hermetically mounted on the incidence light hole; a detector is hermetically mounted on the outgoing light hole; tunable wavelength laser is fed into the optical absorption tank through the incidence optical fiber, is reflected and oscillated in the optical absorption tank, in addition is capable of absorbing an O2 gas and/or a CO2 gas for reflecting vitality of a seed to be measured, and later is received by the detector, and then an O2 gas absorption spectrum optical signal and/or a CO2 gas absorption spectrum optical signal. By adopting the system, seeds do not need to be pretreated, a microenvironment of seed respiration is not damaged, in addition, the system has the advantages of rapidness, convenience, high sensitivity and high precision.

The invention relates to an in-place measurement device for gas. The device is characterized by comprising a laser, a detector, an analysis unit, a purging unit and a calibration unit, wherein the frequency of output light corresponds to absorption lines, namely an absorption line I and an absorption line II of gas to be detected; at the unit concentration and in a unit optical path, the absorption rate of the gas to be detected in detected gas is not lower than 5 times that of the gas to be detected in purging gas due to the temperature difference between the detected gas and the purging gasat the position of the absorption line I; the detector is used for receiving measurement light which passes through the purging gas and the detected gas and corresponds to the absorption line I or calibration light which passes through calibration gas of the gas to be detected and corresponds to the absorption line II; the analysis unit is used for acquiring the content of the gas to be detected in the detected gas according to a signal of the detector; the purging unit is used for providing gas to purge a measurement light path outside the area of the detected gas, and the purging gas comprises the gas to be detected; and the calibration unit comprises the calibration gas of the gas to be detected. The device has the advantages of high measurement accuracy, low cost and the like.

The invention discloses a device and a method for analyzing the flavor of pig feed. The device comprises a data acquisition device and a computer, wherein the data acquisition device comprises a microprocessor, a sample chamber, an air chamber, a gas sensor array and a first air pump; an upper communicating pipe and a lower communicating pipe are arranged between the sample chamber and the air chamber; the air chamber is connected with the first air pump through a first air inlet pipeline; a first solenoid valve and an activated carbon filter screen are arranged on the first air inlet pipeline; an air outlet and a second air pump are arranged on the upper communicating pipe; an air outlet solenoid valve is arranged on the air outlet; the gas sensor array is arranged in the air chamber. Volatilized gas of the pig feed is detected through the gas sensor array, the microprocessor is used for sampling a response signal generated by the gas sensor; the computer is used for processing the sampling value; the dynamic classification parameter delta is calculated through a nonlinear stochastic resonance algorithm and a nonlinear self-calibration dynamic classification model, so that the flavor of the pig feed is judged. The device and the method can distinguish flavors of different kinds of the pig feed.

The invention discloses an on-line detection method and device for ultralow-concentration ammonia gas content. In the ammonia gas trapping process, gas to be detected passes through a spiral pipe trapping trap under the action of a vacuum diaphragm pump, and an ammonia gas component in the gas to be detected is absorbed in absorption liquid to obtain a solution to be detected containing ammonium ions. In the presence of sodium nitroprusside, ammonium ions, salicylic acid and sodium hypochlorite react to generate a blue complex indophenol blue; a liquid-phase sample to be detected enters a total-reflection long-optical-path online flow cell, and online detection of the content of ammonia gas in the gas to be detected is achieved according to the absorbance. The on-line detection device adopts an electromagnetically driven micro pump and a constant-flow peristaltic pump to accurately control a micro solution; daily maintenance is reduced; and rapid, on-line and continuous measurement ofultra-low to medium-high concentration ammonia gas is realized.

The invention discloses a method for removing acetic acid in a sucrose-6-acetate solution and application thereof. The method comprises the following steps: under a certain residence time condition, in tower equipment for removing acetic acid, vapor formed by tertiary amide of certain temperature is in contact with the sucrose-6-acetate solution containing acetic acid in a continuous countercurrent manner, thereby achieving the purpose of removing the acetic acid from the sucrose-6-acetate solution. The method provided by the invention can be applied to the synthesis of sucrose-6-acetate and sucralose, has the advantages of simple process, high acetic acid removal rate, no damage to a sucrose-6-acetate product, continuity and the like, and is very suitable for industrial production.

The invention discloses a method for recycling and processing pickling waste liquid containing iron and aims to overcome defects that a currently common pickling waste liquid processing method is large in discharge quantity and high in processing cost, and the concentration of the recycled acid liquid is lowered greatly. The method is characterized in that by controlling process parameters, quaternary ammonium salt and Fe<3+> ions are allowed to generate precipitates insoluble in acid in an acid environment, the metal ions are effectively separated from the acid liquid, and pickling solution recycling is achieved. The method is simple in processing process, low in equipment requirement, low in investment cost, small in acid concentration change before and after the processing, capable of recycling the waste acid and Fe<3+>, capable of achieving zero emission in the whole processing process, and extremely high in environment value and economic value.

The invention discloses a normal-temperature oocyte preservation device. The invention relates to the technical field of oocyte preservation. The problem that in the prior art, an oocyte preservationdevice is prone to damaging oocytes is solved. Technical key points are that: the preservation device comprises a box body, wherein the box body is divided into a lower box body and an upper box body;the lower box body is hermetically connected with the upper box body; a placing groove is formed in the lower box body; the placing groove is connected with a micro-flow pump and a nutrient solutioncollecting groove through a circulating pipe; the micro-flow pump is communicated with a fluid storage box; the micro-flow pump is used for conveying oocyte preserving fluid in the fluid storage box to the placing groove through the circulating pipe and keeping the oocyte preserving fluid in the placing groove flowing; an oocyte preservation tube is arranged in the placing groove, permeation holesare further formed in the surface of the oocyte preservation tube, multiple groups of oocyte preservation tubes are arranged, and an oocyte is placed in each oocyte preservation tube; according to the invention, the oocytes are prevented from being damaged in the preservation process.

The present invention relates to the field of food, and discloses a process for extracting erythritol. The process comprises the steps of S1, ceramic membrane filtration, S2, nanofiltration filtration, S3, nanofiltration liquid grading treatment, and S4, concentration crystallization. The invention also discloses a system for extracting erythritol, which comprises a primary ceramic membrane filtration device, a nanofiltration membrane purification device, a resin separation and purification device and a concentration and crystallization system which are connected with one another through pipelines. A grading device capable of grading the nanofiltration dialysate to different outlets according to the concentration value of the nanofiltration dialysate is arranged on a nanofiltration dialysate outlet of the nanofiltration membrane purification device, and a plurality of grading outlets are formed in the grading device. According to the invention, the nanofiltration dialysate is subjected to grading treatment according to the solubility by adopting the grading device, and enters different treatment procedures according to different concentrations, so that the concentration change of the system is small, the later process is stabilized, the utilization rate of feed liquid is greatly improved, the energy consumption of subsequent evaporative crystallization is reduced, and meanwhile, the water consumption in the elution process is also reduced.

The invention relates to the technical field of cleaning machines, and discloses an efficient vacuum cleaning machine which comprises at least one first cleaning chamber and a second cleaning chamber, wherein the second cleaning chamber is arranged on the same side of each first cleaning chamber, an injection opening is formed in the second cleaning chamber, and the injection opening is used for introducing cleaning liquid into the second cleaning chamber. The vacuum cleaning machine further comprises a moving mechanism, a filtering mechanism and a circulating mechanism, wherein the moving mechanism is used for driving a workpiece to sequentially pass through the first cleaning chambers and the second cleaning chamber, the filtering mechanism comprises at least one filtering piece, each filtering piece is used for filtering impurities in one first cleaning chamber, each filtering piece completes filtering by means of the process that the liquid level of the cleaning liquid in the corresponding first cleaning chamber is lowered, the pore spaces of the filtering holes of the filtering pieces are sequentially reduced in the direction close to the second cleaning chamber, and the circulating mechanism is used for lowering or raising the liquid level in the first cleaning chamber or the second cleaning chamber to complete filtering. The efficient vacuum cleaning machine has the characteristic that the cleaning quality is convenient to control.

The present invention provides a secondary battery having a novel structure in which unit cells which become thinner in one direction are radially assembled, and a device comprising the same. When a collector having a through-hole in the thickness direction is to be applied, the variation range of the concentration of an electrolyte in the battery is reduced, helping to improve the performance of the battery.