Abstract: The present disclosure discloses an integrated rapid treatment system for nuclear medical radioactive wastewater and an application method thereof. This system includes a wastewater collection unit; a pretreatment unit; a deep purification unit; a solid decay unit; a buffer unit; an online monitoring unit; and a control unit, wherein the online monitoring unit includes a radioactivity level detection module for detecting total ? and total ? radioactivity concentrations of inlet and outlet water of a medium in each unit, and a real-time monitoring module for treatment process parameters. The present disclosure discloses an integrated rapid treatment system for nuclear medical radioactive wastewater and an application method thereof, which can efficiently and quickly purify multi-nuclide organic low-level wastewater produced by a nuclear medical process, and realize rapid online monitoring and automatic control at the same time.

Abstract: Provided are a method for processing titanium extraction slag and a carbon extraction and dechlorination tailing. The method comprises the following steps that a titanium extraction slag raw material is ground to obtain a treated material with a particle size being 0.3˜120 ?m and d90?90 ?m; a first solvent and a treated material are mixed with a liquid-solid ratio of (3.5˜4.

Abstract: A reversible stress-responsive material, a preparation method, and a use thereof are provided. The reversible stress-responsive material prepared by the present disclosure has the property of real-time reversible force response at room temperature. When used with crosslinked plastic (high Tg) and rubber (low Tg) polymer materials, the reversible stress-responsive material can significantly enhance the mechanical strength and ductility of covalently cross-linked polymers. In the present disclosure, the triazolinedione (TAD)-indole click chemistry with the force-induced reversible property is used to construct a force-reversible crosslinked polymer material, and such a force-induced reversible crosslinking method can achieve the breakage and re-forming of covalent crosslinking points at room temperature in a solid state without any external stimuli other than the ambient temperature.

Abstract: A shear wall connector comprising a pre-built member and a connector, the pre-built member comprising a side plate, a peg, and a shear key, the side plate being provided with a first through hole, the peg and the shear key being provided on the inner and outer sides of the side plate respectively, the peg being provided with a threaded hole at the end connected to the side plate and having the threaded hole aligned with the first through hole wherein the connection member comprises an H-beam, the flange plate of the H-beam being provided with a second through-hole and a shear key adaptor hole matching the first through-hole and the shear key in the side plate. The pre-built elements are pre-built in the concrete wall surface and are assembled by means of the connectors. During installation, the shear key is inserted into the shear key adaptor hole.

Abstract: A preparation method of a bacterial cellulose-defective molybdenum disulfide (BC-MoS2-x) heterojunction material for treating radioactive wastewater is provided, including: preparing bacterial cellulose by the in situ growth technology of Acetobacter xylinum, and freeze-drying to obtain dried bacterial cellulose; carbonizing the dried bacterial cellulose to obtain carbonized bacterial cellulose; dispersing the carbonized bacterial cellulose into deionized water under an ultrasonic treatment; then adding thiourea and Na2MoO4.2H2O, dissolving under an ultrasonic treatment to obtain a reaction mixture, subjecting the reaction mixture to a hydrothermal reaction to obtain a BC-MoS2 heterojunction; and calcining the BC-MoS2 heterojunction in a tube furnace with an Ar/H2 atmosphere to obtain the BC-MoS2-x heterojunction.

Abstract: A high-performance triple-crosslinked polymer and a preparation method thereof are provided. The polymer is obtained by curing and cross-linking a monomer having two epoxy groups, a cross-linking monomer and a functional monomer. The polymer contains a cross-linking network formed by covalent bonds and two types of multi-level hydrogen bonds with different strengths. The interaction strength between the covalent bonds and the two types of hydrogen bonds decreases in a gradient. The dilemma of the strength-ductility tradeoff in a high-performance polymer is overcome by forming a triple-crosslinked network with covalent bonds and multi-level hydrogen bonds with different strengths in the polymer. The dynamic and hierarchical hydrogen bonds are broken and recombined timely and continuously to concurrently maintain the complete structure of the polymer network and enable the polymer network to quickly respond to the transmission and dissipation of the external environment.

Abstract: A vertical ground heat exchanger for reducing the temperature in the carbonaceous shale rock mass and preventing roadbed frost heave includes a heating mechanism, a heat releasing component respectively connected to both ends of the heating mechanism and a refrigeration heat exchange mechanism. The refrigeration heat exchange mechanism is connected to the lower end of the heating mechanism through a heat transfer pipeline and communicates with the heat releasing component. The heat releasing component includes a double-layer heat exchange tube component, a gas-liquid separator and a branch tube, wherein the double-layer heat exchange tube component is respectively connected to the both ends of the heating mechanism, the gas-liquid separator is connected to the double-layer heat exchange tube component, and the branch tube is connected between the gas-liquid separator and the refrigeration heat exchange mechanism. The double-layer heat exchange tube component includes an upper bellows and a lower bellows.

Abstract: A method for electrochemical extraction of uranium from seawater using an oxygen vacancy (OV)-containing metal oxide includes the following steps: adding glycerin to a solution of indium nitrate in isopropanol, transferring a resulting mixture to a reactor, and conducting reaction to obtain a spherical indium hydroxide solid; dissolving the solid in deionized water, transferring a resulting solution to the reactor, and conducting reaction to obtain a flaky indium hydroxide solid; calcining the solid to obtain calcined OV-containing In2O3-x; adding the In2O3-x to ethanol, and adding a membrane solution; coating a resulting solution uniformly on carbon paper, and naturally drying the carbon paper; clamping dried carbon paper with a gold electrode for being used as a working electrode for a three-electrode system; and adding simulated seawater to an electrolytic cell, placing the three-electrode system in the simulated seawater, and stirring the simulated seawater for electrolysis to extract uranium from the sea

Abstract: A method for extracting uranium with a coupling device of wind power generation and uranium extraction from seawater includes the following steps: adding oxygen vacancy (OV)-containing In2O3-x to absolute ethanol, and subjecting a resulting mixture to stirring and ultrasonic treatment to obtain a solution of In2O3-x in absolute ethanol; coating the solution uniformly on carbon cloth, and drying to obtain carbon cloth coated with OV-containing In2O3-x; inserting the coated carbon cloth (as a working electrode) and another blank carbon cloth (as a counter electrode) into a plastic carrier of a coupling device; fixing a small wind power generation apparatus above the plastic carrier, and connecting the working electrode and the counter electrode to a storage battery of the apparatus via wires; and placing the coupling device in seawater, and after the storage battery is charged, energizing the working electrode and the counter electrode to extract uranium from the seawater.

Abstract: A method for electrochemical extraction of uranium from seawater using an oxygen vacancy (OV)-containing metal oxide includes the following steps: adding glycerin to a solution of indium nitrate in isopropanol, transferring a resulting mixture to a reactor, and conducting reaction to obtain a spherical indium hydroxide solid; dissolving the solid in deionized water, transferring a resulting solution to the reactor, and conducting reaction to obtain a flaky indium hydroxide solid; calcining the solid to obtain calcined OV-containing In2O3-x; adding the In2O3-x; to ethanol, and adding a membrane solution; coating a resulting solution uniformly on carbon paper, and naturally drying the carbon paper; clamping dried carbon paper with a gold electrode for being used as a working electrode for a three-electrode system; and adding simulated seawater to an electrolytic cell, placing the three-electrode system in the simulated seawater, and stirring the simulated seawater for electrolysis to extract uranium from the se

Abstract: An adhesive for moss and a method for preparing the adhesive are provided, wherein the method includes steps of: adding melamine, urea, attapulgite and sepiolite powder into a ball milling tank, and adding milling balls into the ball milling tank for ball milling; then collecting ball-milled materials; adding konjac glucomannan, chitosan and collagen into water and stirring, wherein during stirring, half of the ball-milled materials are added into the water; then adding latex powder, stearic acid and ammonium zirconium carbonate, and stirring, wherein during stirring, the other half of the ball-milled materials are added into the water. The adhesive for moss can be used for bonding moss with sufficient bonding effect, which is environment-friendly and will not harm the moss; meanwhile, the konjac glucomannan, the chitosan, the collagen attapulgite and the sepiolite powder which are contained in the adhesive can provide nutrition for the moss.

Abstract: A method for extracting uranium with a coupling device of wind power generation and uranium extraction from seawater includes the following steps: adding oxygen vacancy (OV)-containing In2O3-x to absolute ethanol, and subjecting a resulting mixture to stirring and ultrasonic treatment to obtain a solution of In2O3-x in absolute ethanol; coating the solution uniformly on carbon cloth, and drying to obtain carbon cloth coated with OV-containing In2O3-x; inserting the coated carbon cloth (as a working electrode) and another blank carbon cloth (as a counter electrode) into a plastic carrier of a coupling device; fixing a small wind power generation apparatus above the plastic carrier, and connecting the working electrode and the counter electrode to a storage battery of the apparatus via wires; and placing the coupling device in seawater, and after the storage battery is charged, energizing the working electrode and the counter electrode to extract uranium from the seawater.

Abstract: A preparation method of a bacterial cellulose-defective molybdenum disulfide (BC-MoS2-x) heterojunction material for treating radioactive wastewater is provided, including: preparing bacterial cellulose by the in situ growth technology of Acetobacter xylinum, and freeze-drying to obtain dried bacterial cellulose; carbonizing the dried bacterial cellulose to obtain carbonized bacterial cellulose; dispersing the carbonized bacterial cellulose into deionized water under an ultrasonic treatment; then adding thiourea and Na2MoO4.2H2O, dissolving under an ultrasonic treatment to obtain a reaction mixture, subjecting the reaction mixture to a hydrothermal reaction to obtain a BC-MoS2 heterojunction; and calcining the BC-MoS2 heterojunction in a tube furnace with an Ar/H2 atmosphere to obtain the BC-MoS2-x heterojunction.

Abstract: A vertical ground heat exchanger for reducing the temperature in the carbonaceous shale rock mass and preventing roadbed frost heave includes a heating mechanism, a heat releasing component respectively connected to both ends of the heating mechanism and a refrigeration heat exchange mechanism. The refrigeration heat exchange mechanism is connected to the lower end of the heating mechanism through a heat transfer pipeline and communicates with the heat releasing component. The heat releasing component includes a double-layer heat exchange tube component, a gas-liquid separator and a branch tube, wherein the double-layer heat exchange tube component is respectively connected to the both ends of the heating mechanism, the gas-liquid separator is connected to the double-layer heat exchange tube component, and the branch tube is connected between the gas-liquid separator and the refrigeration heat exchange mechanism. The double-layer heat exchange tube component includes an upper bellows and a lower bellows.

Abstract: A method for detecting or comparing mechanical strength of macro-molecular polymer materials. The detecting method has the steps of measuring the mechanical strength and the maximum value of the fluorescence absorption spectrum of each of the plurality of samples to form a curve relationship or function relationship between the maximum value of the fluorescence absorption spectrum and the mechanical strength; measuring the maximum value of the fluorescence absorption spectrum of the target material, and using the curve relationship or the function relationship to obtain the mechanical strength of the target material. The plurality of samples and the target material are both prepared from a macro-molecular polymer, and the macro-molecular polymer may be composed of disulfonate-difluorobenzophenone, hydroxyindole and difluorobenzophenone as monomers, and the sulfonate groups of the disulfonate-difluorobenzophenone have metal cations.

Abstract: A high-performance triple-crosslinked polymer and a preparation method thereof are provided. The polymer is obtained by curing and cross-linking a monomer having two epoxy groups, a cross-linking monomer and a functional monomer. The polymer contains a cross-linking network formed by covalent bonds and two types of multi-level hydrogen bonds with different strengths. The interaction strength between the covalent bonds and the two types of hydrogen bonds decreases in a gradient. The dilemma of the strength-ductility tradeoff in a high-performance polymer is overcome by forming a triple-crosslinked network with covalent bonds and multi-level hydrogen bonds with different strengths in the polymer. The dynamic and hierarchical hydrogen bonds are broken and recombined timely and continuously to concurrently maintain the complete structure of the polymer network and enable the polymer network to quickly respond to the transmission and dissipation of the external environment.

Abstract: A macro-molecular polymer and its preparation method. The macro-molecular polymer takes disulfonate-difluorobenzophenone, hydroxyindole and difluorobenzophenone as monomers for which a sulfonate group of the disulfonate-difluorobenzophenone is a metal cation. High-performance polymers can be obtained with crosslinked structure among molecular chains by a way of interaction of metal cations ??, and further to obtain a high performance polymer having good mechanical properties and stability. Furthermore, the polymer facilitates recovery and has good reproducibility and recycling properties.

Abstract: A method for detecting or comparing mechanical strength of macro-molecular polymer materials. The detecting method has the steps of measuring the mechanical strength and the maximum value of the fluorescence absorption spectrum of each of the plurality of samples to form a curve relationship or function relationship between the maximum value of the fluorescence absorption spectrum and the mechanical strength; measuring the maximum value of the fluorescence absorption spectrum of the target material, and using the curve relationship or the function relationship to obtain the mechanical strength of the target material. The plurality of samples and the target material are both prepared from a macro-molecular polymer, and the macro-molecular polymer may be composed of disulfonate-difluorobenzophenone, hydroxyindole and difluorobenzophenone as monomers, and the sulfonate groups of the disulfonate-difluorobenzophenone have metal cations.

Abstract: A method for detecting or comparing mechanical strength of macro-molecular polymer materials. The detecting method has the steps of measuring the mechanical strength and the maximum value of the fluorescence absorption spectrum of each of the plurality of samples to form a curve relationship or function relationship between the maximum value of the fluorescence absorption spectrum and the mechanical strength; measuring the maximum value of the fluorescence absorption spectrum of the target material, and using the curve relationship or the function relationship to obtain the mechanical strength of the target material. The plurality of samples and the target material are both prepared from a macro-molecular polymer, and the macro-molecular polymer may be composed of disulfonate—difluorobenzophenone, hydroxyindole and difluorobenzophenone as monomers, and the sulfonate groups of the disulfonate—difluorobenzophenone have metal cations.

Abstract: A macro-molecular polymer and its preparation method. The macro-molecular polymer takes disulfonate-difluorobenzophenone, hydroxyindole and difluorobenzophenone as monomers for which a sulfonate group of the disulfonate-difluorobenzophenone is a metal cation. High-performance polymers can be obtained with crosslinked structure among molecular chains by a way of interaction of metal cations ??, and further to obtain a high performance polymer having good mechanical properties and stability. Furthermore, the polymer facilitates recovery and has good reproducibility and recycling properties.