21 results about "Environmental water" patented technology

The application discloses an online enrichment detection system for particles and dissolved pollutants in water, which comprises a fly ash enrichment cavity, an interior of which is used for containing water, and a fly ash enrichment area between a liquid surface of the water and a top surface of the fly ash enrichment cavity; a bubble generating device arranged in the water in the fly ash enrichment cavity and used for generating bubbles for enriching particles and dissolved pollutants in the water; a gas sweeping device used for sweeping pure gas into the fly ash enrichment area and carrying away fly ash generated by the breaking of the bubbles; and a fly ash aerosol detection device used for detecting the concentration or particle size distribution of the particles in the fly ash and qualitatively and quantitatively analyzing the dissolved pollutants. The system can reliably detect low-concentration particles with a particle size of 6 nm or below in the water online, and qualitatively and quantitatively analyze the dissolved pollutants, so as to provide more accurate real-time water data for advanced chip manufacturing processes, environmental water detection, drinking water detection and industrial wastewater detection. The application further discloses an online detection method for particles and dissolved pollutants in water.

The invention discloses a sampling device and a sampling method for environmental water quality detection, and belongs to the technical direction of water quality detection.The sampling device comprises a water quality detection sampler, a water inlet pipe is fixedly installed at one end of the outer portion of the water quality detection sampler, and three sets of sampling openings are formed in one end of the inner wall of the water quality detection sampler in an array mode; three groups of first water outlet pipes are installed at the other end of the exterior of the water quality detection sampler in an array mode, one ends of the three groups of first water outlet pipes are connected with three groups of first water pipes respectively, and a first water quality detection sensor, a second water quality detection sensor and a third water quality detection sensor are used in cooperation with equipment programs; water quality detection and sampling collection can be carried out on water bodies at different water levels in the water bodies to be detected, the water levels are different, the silt content in the water bodies is also different, detection and sampling values fluctuate, and the situation that sediment accumulated at the bottom of the water quality detection sampler influences data accuracy can be avoided.

The application belongs to the technical field of ion detection, and particularly relates to a furan fused derivative material and application thereof in barium ion detection. In order to solve the problems of the prior art, such as complicated and complex detection, high cost, poor detection sensitivity, and unsuitability for real-time analysis, etc. in the detection of barium ions, the application provides a furan fused derivative material. The furan fused derivative material is used as an active layer of an OECT, a designed and synthesized azacrown-6 crown ether material is modified above the active layer, selectivity is provided by the azacrown ether, a full-plane barium ion sensor is prepared, and the purpose of real-time detection of barium ion concentration with rapidity, accuracy and high sensitivity can be achieved. The detection limit is as low as 10nM, which is superior to most of the currently reported barium ion sensors, and greatly meets the detection requirements of environmental water samples.

The utility model discloses an in-situ multi-point synchronous sampling and bottom mud disturbance resisting soil measuring structure, and particularly relates to the technical field of environmental water body detection, the measuring structure comprises a testing main body and a vertical shaft sleeve, the testing main body comprises a main body and a shell, the main body comprises a testing rod, testing units used for testing the salt content, the conductivity and the temperature of water are arranged on the testing rod at equal intervals, and the top end and the bottom end of each testing unit are isolated through a sealing section; a lead connected with the testing unit penetrates out of the top end of the testing rod through the sealing section; the casing comprises a drilling casing and a sleeving casing which are used for drilling a soil layer and protecting, the drilling casing is arranged at one section of the test rod, the main body is mounted in the sleeving casing, a plurality of uniformly distributed drill holes are formed in the sleeving casing, the drill holes correspond to the test units in position, and the drill holes are communicated with the casing. And water is permeated in the sleeve shell.

The invention provides a micro-plastic fluorescence detection method based on carbon quantum dots, and belongs to the technical field of environment detection. The method comprises the following steps: firstly, adjusting the pH value of a filtered water sample to be detected to 6.5-8.5 by adopting a buffer solution to serve as a marking medium; secondly, preparing a carbon quantum dot solution through an activated sludge hydrothermal method, mixing the carbon quantum dot solution with a water sample to be detected in a buffer system, and reacting for 0.25-24 hours under the conditions that the temperature is 25-45 DEG C and the pH value is 5.0-9.0 to finish fluorescence labeling. And finally, carrying out solid-liquid separation on the water sample solution, re-dispersing the separated solid substances in water, and carrying out observation and fluorescence intensity determination by using a fluorescence microscope or a fluorescence spectrophotometer so as to realize analysis of the microplastics in the environmental water sample. The method is green and environment-friendly, is rapid and stable in marking, shows good detection performance and high recovery rate in actual water samples such as river water and tap water, and provides an effective tool for rapid, simple and convenient detection of micro-plastics in the environment.

This invention provides a highly selective and sensitive fluorescent probe for mercury ions, its preparation method, and its applications, belonging to the fields of chemical sensing materials and environmental monitoring technology. This invention connects 4-(1,2,2-triphenylvinyl)phenol, which exhibits aggregation-induced emission, and a guanosine derivative with multiple coordination sites, via a flexible chain to obtain a fluorescent probe with the structure shown in Formula I. This fluorescent probe not only overcomes the problems of large differences in solubility and reactivity between 4-(1,2,2-triphenylvinyl)phenol and guanosine derivatives, making coupling difficult, but also possesses high sensitivity and selectivity; its detection limit reaches 12.24 nM, effectively detecting trace mercury pollution in samples. It can also accurately identify mercury ions in water samples containing multiple high concentrations of metal ions, demonstrating high accuracy in real water samples. It is suitable for the accurate determination of mercury ions in complex environmental water samples and has good practical application value in the field of environmental monitoring. Formula I

The invention relates to the field of analysis and detection, in particular to a fluorescent probe as well as a preparation method and application thereof. The fluorescent probe provided by the invention is prepared by carrying out condensation reaction on barbituric acid and 2-hydroxy-1-naphthaldehyde in a polar solvent, a carbon-carbon double bond formed by condensation of barbituric acid and 2-hydroxy-1-naphthaldehyde is used as a key pi bridge in a molecule, and a chromophore with a strong intramolecular charge transfer effect is jointly constructed; the fluorescent dye shows cyan appearance and strong green fluorescence in an aqueous solution. After specific reaction with hypochlorite, a conjugated skeleton and an ICT process of the whole molecule are destroyed, so that the color of a solution is changed from cyan to colorless, fluorescence is remarkably quenched, and'off-on 'type detection is realized. The probe has the advantages of quick response, high sensitivity and good selectivity, can be applied to qualitative and quantitative detection of hypochlorite in environmental water quality and biological samples, and supports test paper portable detection.

The invention belongs to the technical field of environmental analysis chemistry and new material preparation, and particularly relates to a sulfuryl-containing covalent organic framework material as well as a preparation method and application thereof. The sulfuryl-containing covalent organic framework material (TpSD) is shown in the following formula I. The material disclosed by the invention is prepared from 1, 3, 5-trialdehyde phloroglucinol and 4, 4 '-diaminodiphenyl sulfone. The material is novel in structure, and shows the characteristics of large specific surface area, regular pore structure and high stability. In addition, a target object and sulfuryl in the material can form a hydrogen bond, so that the adsorption effect is further enhanced. The material can be applied to quantitative separation and enrichment of tetrabromobisphenol S derivatives in environmental water samples, can solve the problems of complex matrix interference and low sensitivity of detection instruments during analysis of trace organic matters in current environmental water samples, has stable properties, and can be reused.

The utility model belongs to the technical field of filtering devices, and particularly relates to a filtering device for environmental water quality monitoring, which comprises a shell, a water inlet is fixedly connected to one side of the top of the shell, a paddle is rotatably connected to the interior of the shell and is positioned below the water inlet, a storage cavity is formed in the interior of the shell and is positioned below the paddle, and the storage cavity is communicated with the water inlet. A filtering assembly is arranged on the upper portion in the storage cavity, a stirring cavity is formed in the lower portion in the shell, and a stirring rod is rotationally connected to the interior of the stirring cavity; the utility model provides a filtering device for environmental water quality monitoring, and solves the problems that in the prior art, when water quality is monitored, a water source is generally filtered and purified through a filtering layer, but a deodorization step is not included in the purification process, the water source is stink due to the fact that part of the environment is severe, and if the water source is not subjected to deodorization treatment, the water quality cannot be monitored. The problem that stink in the sewage not only endangers the body health of workers, but also diffuses into the air to cause serious pollution to the air is solved.

The invention discloses a power transmission and transformation project environmental water conservation problem analysis method and system based on spatial analysis. The method comprises the following steps: obtaining an associated geographic area of a construction line, then dividing sensitive areas to obtain sensitive patrol areas of different sensitive types, and determining protection grade parameters according to the sensitive types; collecting the spatial crossing and overlapping conditions of the construction lines and the sensitive patrol areas, and obtaining the line crossing information of each sensitive patrol area; and calculating a protection adjustment coefficient according to the line crossing information, endowing the protection adjustment coefficient of each sensitive patrol area with a corresponding protection level parameter to obtain a sensitive risk level, and performing early warning on the environmental water protection risk of each sensitive patrol area according to the sensitive risk level. And updating the corresponding line crossing information according to the construction period of each sensitive patrol area so as to re-determine the protection adjustment coefficient of each sensitive patrol area. According to the invention, different sensitive types of areas are monitored, data can be updated in time according to the construction period, and the accuracy of an analysis result is ensured.

This invention provides a method and apparatus for monitoring groundwater resources, belonging to the field of groundwater flow measurement technology. The method includes: obtaining the comprehensive fluid interference intensity of groundwater based on the differences in signal amplitude and instantaneous phase between low-frequency and high-frequency ultrasonic signal sequences; obtaining the bubble intensity disturbance factor of groundwater based on the comprehensive fluid interference intensity and the changes in pipe environmental water pressure data in adjacent sampling periods; dynamically compensating a preset reference sound velocity based on the bubble intensity disturbance factor, and combining this with the ultrasonic propagation time difference to obtain corrected real groundwater flow velocity data. This invention improves the accuracy of groundwater resource monitoring.

The invention relates to system integration of monitoring technologies of river water level, flow, sand content, water temperature, precipitation, evaporation capacity, wind speed, wind direction, soil moisture content and the like, and belongs to the technical field of hydrological element monitoring in water conservancy and hydrological industries. A station-building-free total-factor hydrometric station monitoring device comprises a first support and a second support, a fixing structure is arranged on the first support and the second support, a travelling crane and a radar travelling crane are arranged on the fixing structure, a hydrometric station monitoring device is arranged on the first support, the second support, the travelling crane and the radar travelling crane, and local automatic intelligent monitoring of a multifunctional hydrometric station is achieved through the structure. The system can remotely control automatic intelligent monitoring or real-time interrogation operation, and is widely applied to hydrological monitoring, water conservation monitoring, environment-friendly water quality monitoring, reservoir dispatching management, irrigation management dispatching of irrigation areas, traffic monitoring and other industries.

The invention relates to the technical field of test tube cleaning, and particularly discloses a test tube cleaning machine for environmental water quality detection, which comprises a test tube cleaning machine, a fixing device, a rotating device and a clamping device, the fixing device is arranged at the top of the test tube cleaning machine, and the fixing device can fix the test tube cleaning machines of any size and the same model; the rotating devices are arranged at the two ends of the bottom face of the fixing device. The clamping device is arranged between the bottom ends of the rotating devices; through the universal fixing design of the test tubes of the clamping device, linkage of rotation and the clamping device, the cleaning quality is improved, and the detachable and expansion adaptive design of the fixing device, stable fixing and dead-corner-free high-quality cleaning of the test tubes of different specifications and flexible adaptation of test tube cleaning machines of different models are achieved.

The invention discloses a lysosome targeted copper ion fluorescent probe with an AIE (aggregation-induced emission) effect, which is obtained by taking 7-(diphenylamino)-2-oxo-2H-benzopyran-3-carboxylic acid (I) and 8-aminoquinoline (II) as raw materials and reacting and synthesizing under the action of 2-(7-azabenzotriazole)-N, N, N ', N'-tetramethylurea hexafluorophosphate and triethylamine. The chemical structural formula of the fluorescent probe is shown as a formula (III), and the fluorescent probe has an AIE effect, has the advantages of high selectivity and high sensitivity on Cu < 2 + > recognition and the like, and can be used for effectively detecting Cu < 2 + > in an environmental water sample; besides, the probe has good biocompatibility, can be positioned in a lysosome, and is applied to real-time fluorescence imaging monitoring of Cu < 2 + > concentration change in an autophagy process caused by starvation or a chemical inducer in living cells and zebra fish bodies; the invention provides a copper ion detection tool with excellent performance, which has huge potential in the fields of environmental monitoring and life science research.

This invention discloses a method for detecting substances in urban environmental water bodies. N The method of adding methylmorpholine to pretreat water samples involves adding the internal standard morpholine. d 8 Subsequently, a working curve was plotted using liquid chromatography-quadrupole mass spectrometry (LC-MS / MS) to qualitatively and quantitatively detect the components in urban environmental water samples. N methylmorpholine content. The detection method of this invention has the advantages of high sensitivity, high accuracy, fast analysis speed, quantification, and accuracy. Its average recovery rate can reach over 90%, and the goodness of fit R... 2 The accuracy reaches 0.9999, indicating high reliability of the test results. This invention can be applied to research and risk monitoring related to urban environmental water quality.

The utility model discloses an environmental water monitoring anti-interference structure, which belongs to the technical field of environmental water monitoring, and is characterized by comprising a water sample storage test tube body, a sealing cover is arranged at the top of the water sample storage test tube body, an auxiliary mechanism is arranged at the bottom of the water sample storage test tube body, and the auxiliary mechanism comprises a bearing assembly and a cleaning assembly. The bearing assembly is arranged at the bottom of the water sample storage test tube body, the cleaning assembly is arranged on the inner side of the bearing assembly, and the bearing assembly and the cleaning assembly are arranged, so that the bearing assembly can store and protect the water sample storage test tube body, and meanwhile, the bearing assembly can bear and fix the cleaning assembly; and the user can move the water sample storage test tube body from the interior of the bearing assembly to the interior of the cleaning assembly, so that the cleaning assembly can automatically and quickly clean interference factors on the surface of the water sample storage test tube body, and large errors of water quality data detected by the water quality detection equipment are avoided.

The invention discloses a poly (acrylamide-acrylic acid) / sodium alginate (P (AAm-co-AAc) / SA) three-dimensional network structure hydrogel coated MZI iron ion sensor with ultralow detection limit and a detection system. The MZI iron ion sensor is composed of a broadband light source, a single-mode optical fiber, a flow cell, an MZI interferometer and a spectrograph. A broadband light source emits light, the light is input into a hydrogel-coated MZI interferometer based on dislocation welding, and an output interference spectrum is monitored and recorded in real time by a spectrometer. After the hydrogel adsorbs the iron ions, the refractive index and the volume of the hydrogel can be changed, so that the intensity or the wavelength of an interference spectrum is changed, and rapid, accurate and trace detection of the iron ions in the water environment is finally realized by establishing a relationship between different iron ion concentrations and interference spectrum drifting. The sensor has the remarkable advantages of low cost, ultralow detection limit, wide detection range, fast response and repeatability in detection, and has a wide application prospect in the fields of future environmental water quality monitoring, industrial production, high-end manufacturing and the like.

A kind of method for determining sulfide in environmental water body is determined by using X-ray fluorescence spectrometry.In environmental water body, slightly excessive copper chloride solution and sodium hydroxide solution are added to convert unstable sulfide into extremely difficultly soluble copper sulfide precipitate, 0.23 μm PTFE filter membrane is used to filter sample preparation technology to enrich and separate copper sulfide precipitate in environmental water body, dilute hydrochloric acid is used to wash the precipitate to remove Cu (OH) 2 and Cu 2+ Residue, the microporous filter membrane that is naturally dried is pressed into sheet in the middle of two polyethylene sheets under high pressure condition, the copper element content in difficultly soluble copper sulfide is determined by WDXRF, and then the concentration of sulfide in environmental water body is obtained according to the conversion of equal molar quantity.The present application has the advantages of low detection limit, high accuracy, good precision, wide linear range and short analysis time.

After o-phenylenediamine (OPD) reacts with iron ions, the fluorescence intensity of the system at the wavelength of 570nm can be obviously enhanced. In the presence of H2O2, the fluorescence enhancement of the reaction system is more obvious, the content of Fe < 3 + > is in a concentration range of 0.05-20 [mu] M, the concentration of Fe < 3 + > and the fluorescence intensity enhancement value [delta] IF of the system present a good linear relationship, and the linear correlation coefficient (R2) is 0.995. Based on the experiments, when OPD is used as the fluorescent probe and H2O2 is used as the sensitizer, the sensitivity of Fe < 3 + > detection is high, the detection limit is low, the method can be used for measuring the Fe < 3 + > content in an actual water sample, and the standard recovery result is good. The method is simple, high in sensitivity and good in selectivity, and has potential application value when applied to detection of Fe < 3 + > in an environmental water sample.

The invention provides a power transmission and transformation project environmental water conservation risk early warning analysis method based on multi-factor index evaluation, and the method comprises the steps: carrying out the field collection of a construction region according to the risk evaluation demand corresponding to each risk factor, obtaining corresponding field data, and carrying out the independent scoring of each field data, obtaining a factor risk value corresponding to each risk factor in the construction area, performing overall risk assessment on the factor risk values by using an exponential-Golomb coding method to obtain an overall risk index of the construction area, determining an overall risk level of the construction area, and performing numerical optimization on each factor risk value to obtain an overall risk index of the construction area; the method comprises the steps of obtaining a level risk value of a corresponding risk factor, determining an early warning project corresponding to a construction area according to a risk level, adjusting an early warning sequence of the early warning project according to the level risk value, generating a risk early warning scheme of the construction area, and carrying out early warning. The method can comprehensively and accurately evaluate the environmental water protection risk of the power transmission and transformation project, and timely sends an early warning signal.

The application discloses carbon dots with an aggregation-induced emission feature and a multi-element detection Hg 2+ , Cu 2+ and BSA, which is synthesized by a hydrothermal method with o-phenylenediamine (OPD) and thiourea (Tu) as precursors; trace Cu 2+ , Hg 2+ and BSA in environmental water samples and food samples can be detected through a fluorescence mode; a fluorescence enhancement mechanism of the carbon dot fluorescence probe is an AIE mechanism induced by Cu 2+ ; Hg 2+ quenches the fluorescence of the carbon dot fluorescence probe through a static quenching effect (SQE) mechanism; and the fluorescence recovery of the quenched carbon dot-Hg 2+ complex is based on the strong chelation ability of BSA to Hg 2+ , which takes away Hg 2+ , so that the fluorescence of the carbon dot is recovered; and the presence of Cu 2+ hardly influences the recognition ability of the SN-CDs fluorescence probe to Hg 2+ .