72 results about "Analysis water" patented technology

This invention relates to one rapid resolving photometric analysis water medium chemical oxygen volume testing method, which comprises the following steps: making H2SO4-H3PO4 mixture with proportion as 3:1-5:1; making catalytic agent MnSO4-CuSO4 with weight proportion as1:1-1:3; adding catalytic agent into the mixture of 100ml with catalytic agent weight as 0.25-0.40g with oxidation K2Cr2O7 concentration as0.10-0.25mol/L to make resolving liquid; adding the liquid into the dirty water with proportion 1:2-1:3 with resolving temperature as 150-170DEG C and time as10-20min; Measuring the water medium oxygen volume by adopting photometric meter online monitor through Cr on 590-610nm light.

The invention concerns an apparatus for analysing water chemistry. According to the invention, the apparatus is adapted to operate downhole and comprises a colouring agent supply device for supplying a colouring agent to a water sample, the colour of the water sample thus supplied being indicative of the water sample chemistry, and a colorimetric analyser arranged to determine the colour of the water sample.

The invention discloses a method for quickly and automatically analyzing the effective water resistance ratio of a bridge pier in a river channel, and belongs to the technical field of river dynamicsand hydrodynamic force influence demonstration of wading buildings. The method mainly comprises the following steps: firstly, preprocessing a watercourse shoreline terrain, determining an analysis water level and a reference water passing section, and calculating the total area of the water passing section; secondly, carrying out coordinate transformation by taking the water passing cross sectionas an axis, and projecting the top point of the bridge pier to the water passing cross section; thirdly, calculating the projection area of the bridge pier on the water passing section, calculating the effective water resistance ratio of the bridge pier by combining the total area of the water passing section, and drawing a water resistance section diagram; the method has the advantages that the defects that a method for calculating the effective water resistance ratio of the bridge pier in the river channel is complex in step, low in efficiency, high in accuracy influenced by skill proficiency of calculation personnel and the like are overcome, the method for quickly and automatically analyzing the effective water resistance ratio of the bridge pier in the river channel is provided, automatic calculation of the water resistance ratio of the bridge pier in the river channel is achieved, and efficiency and precision are improved.

The invention generally relates to the measurement and predictions of conditions and contaminants; chemical, particulate and gaseous in and around water impoundments. More specifically, the invention relates to the use of an autonomous watercraft to analyze the chemical and physical properties of a body of water, such as a pond holding water used in a hydraulic fracturing operation.

The invention relates to river sudden water pollution analysis and risk map compiling method. The method is characterized by comprising the following steps: 1) setting a sudden water pollution scene;2) establishing a hydrodynamic water quality coupling model; 3) analyzing a simulation result, and 4) drawing a water pollution risk map. According to the method, risk source identification, numericalsimulation and accident early warning are integrated, water pollution indexes such as the time when a region is affected and the time when a pollution group reaches a specific section are accuratelysimulated, and technical support is provided for a water environment manager to make an emergency plan and post-process an accident.

The invention belongs to an analysis method in the field of environmental monitoring, and particularly relates to a method for evaluating the complexing degree of soluble organic matters and metal ions in a water body. According to the invention, the concentration change of bound metal after complexing of soluble organic carbon with different molecular weights and heavy metals in the water body isobserved through an equilibrium dialysis simulation experiment, the concentration of total metal ions in an equilibrium solution is determined through atomic absorption spectrometry, and the concentration of free metal ions is determined through an ion electrode, so that the complexing degree of the DOC and the heavy metals in the water body can be quickly obtained, the fluorescence peak intensity change of the components in the water body is determined through the fluorescence spectrometry, the change information of fluorescence quenching caused by complexing of the specific components of the DOC in the water body under different molecular weights and the heavy metals can be rapidly analyzed. The method has better accuracy for a large amount of detection.

The invention discloses a water pollution analysis method based on an ultraviolet visible spectrum and a three-dimensional fluorescence spectrum. The specific steps of the operation method are as follows: sampling water quality, namely carrying out multi-point sampling on an analysis water source through sampling equipment, and then preparing a polluted water sample and a purified water sample; collecting a three-dimensional fluorescence spectrum, namely irradiating multiple bottles of collected water samples, polluted water samples and purified water samples through ultraviolet rays to reflect fluorescence signals, and enabling the fluorescence signals to generate the three-dimensional fluorescence spectrum through a diffraction grating; converting a three-dimensional fluorescence spectrum, namely converting the three-dimensional fluorescence spectrum into an electric signal through a CMOS chip so as to obtain three-dimensional fluorescence spectrum data in the form of the electric signal; processing the three-dimensional fluorescence spectrum data, namely preprocessing the three-dimensional fluorescence spectrum data. The method is reasonable in design and accurate in analysis, the three-dimensional fluorescence spectrum data can be corrected, the accuracy of sewage analysis data is well guaranteed, and a certain scientific basis is provided for a water pollution treatment method.

The invention relates to an underwater drilling device and a method for obtaining and analysing soil samples of the bed of a body of water. An underwater drilling device with a base frame is lowered in a body of water and placed on the bed of a body of water. With a drilling drive that is mounted on the base frame and able to move vertically, a drill string consisting of at least one tubular drill string element is drilled into the bed of the body of water in a first drilling step, wherein a core sample is accommodated in a holder in the tubular drill string element. The holder with the core sample is stored in a storage location of a second storage region on the base frame. Subsequently, at least one further drilling step is carried out with a further drill string element. By means of at least one sensor device arranged on a base frame in a surrounding area of the drilling axis, at least one physical and/or chemical property of the core sample is determined. The data thus determined is saved in a data processing device together with data relating to the storage location of the core sample in the second storage region.

The invention provides a novel method for analyzing the triazole pesticide residue in water based on bubbling-assisted demulsification-eutectic solvent aqueous two-phase system. According to the basicconcept of the invention, carbon dioxide bubbling-assisted demulsification is fully utilized, so that an emulsion can be quickly clarified without using additional centrifuging equipment; the eutectic solvent aqueous two-phase system has the advantages of environment friendliness, good biocompatibility, low cost, fast phase formation, high extracting efficiency and the like; based on the advantages of the two, the bubbling-assisted demulsification and the eutectic solvent aqueous two-phase system are combined, so that the demulsification effect is obvious and the operation is simple, safe andenvironmentally friendly; the method is applicable to enrichment of a relatively low-concentration compound in water as well as analytic determination based thereon.

The invention provides a water quality monitoring and improving device based on a watercourse ecological revetment and a method thereof. The water quality monitoring and improving device comprises a plurality of water quality improving devices and water quality monitoring devices which are arranged on the ecological revetment at intervals. Each water quality improving device comprises a support device, a work box, a sediment stirring device, an aeration device, a chemical adding device and a collection device. Each water quality monitoring device comprises a sampling device, a water quality analyzer and a processing controller, wherein the sampling device is arranged below the corresponding work box to be used for obtaining a water sample in a watercourse, the water quality analyzer is arranged in the work box and is used for analyzing data of the water sample, and the processing controller is connected with the water quality analyzer and the corresponding water quality improving device and is used for controlling the water quality improving device to improve water quality according to the data of the water sample. In conclusion, the water quality monitoring and improving device based on the watercourse ecological revetment and the method thereof have the advantages of being novel in structure, perfect in process, good in improving effect and the like.

The invention discloses an SYBR-Green fluorescent quantitative RT-PCR (reverse transcription-polymerase chain reaction) detection method for Microcystis aeruginosa phycophages in a water environment, belonging to the field of molecular biology. In the invention, based on the g91 segment of the tail sheath protein gene of Microcystis aeruginosa phycophages Ma-LMM01, Premier5.0 and Oligo6 software are used to design quantitative PCR external standard primers SH-WF and SH-WR and quantitative PCR primers SH-RTF and SH-RTR, and the primers are used to detect the quantity of Microcystis aeruginosa phycophages in a water environment, thereby analyzing the law that the quantity of Microcystis aeruginosa phycophages in the water varies with time and space.

The invention relates to the technical field of feeding devices, in particular to an accurate feeding system and method applied to recirculating aquaculture, and the method comprises the following steps: a feeding step: obtaining a feeding tentative amount, and feeding according to the feeding tentative amount; a residual feed analysis step: analyzing the water surface image after feeding in real time, and judging whether residual feed exists on the water surface or not according to the water surface image; an aggregation analysis step: when no residual feed exists on the water surface, analyzing the water surface image to generate the aggregation degree of the cultured organisms, and generating the feeding amount according to the aggregation degree; the feeding step further comprises the step of feeding according to the feeding amount; and repeating the residual feed analysis step and the aggregation analysis step. By adopting the scheme, the feeding amount can be controlled for feeding according to the ingestion intensity of the cultured organisms, so that accurate feeding is realized, and the technical problem that the breeding cost is increased due to improper feeding in recirculating aquaculture in the prior art is solved.

The invention relates to a method for identifying whether rainwater is introduced into sewage, which can quickly judge whether the rainwater is introduced into a sewage inspection well in a mixed or staggered manner. The method comprises the steps of 1 collecting and pretreating a water sample; 2 carrying out three-dimensional fluorescence spectrum detection on the water sample to obtain a three-dimensional fluorescence spectrogram of the water sample; and 3 analyzing the three-dimensional fluorescence spectrogram of the water sample to judge whether rainwater enters the sewage inspection well or not. The method is simple and rapid to operate, reliable and economical, and can be widely used for judging whether the rainwater is introduced into the sewage inspection well in a mixed or staggered manner.