142 results about "Water safety" patented technology

The invention relates to a groundwater safety assessment method under an extreme climate event, which comprises the following steps: collecting multi-source heterogeneous data such as meteorological data, geological data, hydrological data and remote sensing data, and constructing a unified groundwater safety knowledge graph through standardized cleaning, semantic alignment and deletion completion; monitoring an extreme climate event in real time, and updating a node relation weight and sparsifying a transmission path based on knowledge graph dynamic evolution and a time sequence attention mechanism; performing risk propagation path reasoning on the dynamic knowledge graph in combination with an improved graph neural network, identifying key pollution nodes, and outputting a structured risk level and a coping suggestion; the system continuously optimizes atlas and model parameters based on evolution feedback, and high adaptability and reasoning precision of emergency response are achieved. According to the method, the intelligence, the real-time performance and the accuracy of underground water risk assessment are improved. The problems that the underground water pollution propagation path is difficult to dynamically identify and the decision adaptability is insufficient under extreme climate events are solved.

The invention discloses an acoustic-optical imaging semantic fusion detection method for underwater defects of a hydraulic structure, and the method comprises the steps: obtaining underwater acoustic and optical images of the hydraulic structure at the same time through underwater acoustic-optical imaging sensing for the underwater defects of the hydraulic structure; and on the basis, acoustic semantic features in the acoustic image are extracted through a semantic feature extraction module, optical image features in the optical image are processed by taking the acoustic semantic features as guidance, and a defect detection result is obtained when an underwater defect target exists in the image, so that underwater defect sound-light imaging semantic fusion detection is realized. The technology is suitable for health monitoring of various dam system hydraulic structures, and operation safety and water safety of hydraulic engineering are guaranteed.

The invention discloses a lake water resource-water safety collaborative annual-scale robust scheduling logic generation method, system and device and a storage medium, and the system comprises a watershed hydrology-lake body hydrodynamic coupling modeling module which is used for constructing a distributed watershed hydrology model and a lake body hydrodynamic model; the comprehensive meteorological uncertainty boundary file generation module is used for obtaining a watershed meteorological boundary file and a lake body meteorological boundary file; the drainage basin hydrological simulation module is used for forming a drainage basin inflow-water taking boundary file set covering meteorological uncertainty; the lake water level control strategy generation module can obtain a plurality of water level control boundary files; a lake body hydrodynamic simulation module; and the water level control strategy determination module is used for determining a final annual scale robust water level scheduling strategy. According to the method, the spatial-temporal heterogeneity of rainfall and a multi-scene water level control strategy are comprehensively considered, the accuracy and robustness of lake water resource management are remarkably improved, and reliable operation of the system under various meteorological conditions is guaranteed.

The invention discloses a drinking water disinfection by-product generation prediction method based on a reaction kinetic model, and belongs to the technical field of drinking water treatment and drinking water quality prediction, and the method is realized based on the following steps: 1) constructing a disinfection by-product generation kinetic model of a model compound and determining the reaction rate of each step; 2) constructing and optimizing a disinfection by-product generation kinetic model of the natural organic matter on the basis of the obtained reaction rate to obtain a disinfection by-product generation kinetic model of an actual water body; 3) establishing a prediction method for the concentration of each component in the model; and 4) inputting the measured concentration of each component in the actual water body into the constructed model, and calculating and predicting a disinfection by-product generation kinetic result of the actual water body through the model. The method fully considers the generation kinetics of the disinfection by-products of the actual water body under different space (time) distribution, can quickly predict the generation of various disinfection by-products which are managed and controlled and are not managed and controlled but have high toxicity, provides early warning for the effluent quality of drinking water treatment, and ensures the safety of drinking water.

The invention relates to the technical field of environmental monitoring, in particular to an ecological environment and environmental pollution monitoring system and method, and a multi-source heterogeneous data acquisition module comprehensively acquires water quality, weather and space monitoring data. The system comprises a topological mapping data preprocessing module which is used for abnormal data detection and data vacancy filling; the state evolution analysis module is used for constructing an environment state transition network and analyzing an environment state evolution rule; the environment comprehensive evaluation module is used for calculating a water safety level index and a water pollution condition index and generating an environment quality evaluation report; the pollution diffusion prediction module is used for predicting a pollutant diffusion path and concentration distribution and identifying a high-risk area; the intelligent early warning and visualization module is used for generating graded early warning information and visually displaying the environment state and the pollution diffusion condition through multi-dimensional data, so that the coverage and the data integrity of environment monitoring are remarkably improved, the environmental pollution problem can be timely found and dealt with, and the ecological environment safety is guaranteed.

The invention belongs to the field of lake ecological desilting, and discloses a shallow lake bottom mud ecological desilting and residual water treatment combined treatment method which comprises lake bottom mud ecological desilting, solidification dehydration treatment and residual water treatment. Ecological dredging of the lake bottom mud is implemented by adopting an environment-friendly cutter suction dredger and a sealed pipeline to convey mud, and the bottom mud is conveyed to a mud discharge field to be solidified and dehydrated. A vacuum preloading technology is adopted for solidification and dehydration of the bottom mud, pore water of the bottom mud is effectively discharged by increasing the pressure difference between soil bodies of a drainage plate, and the overall solidification effect is improved. The residual water treatment comprises the treatment of desilting and solidifying residual water, the technologies of multi-stage precipitation, mechanical aeration, aquatic plant remediation and the like are adopted, and the residual water is discharged nearby after being treated to reach the standard. The combined treatment method aims at effectively reducing endogenous pollution of lakes, promoting lake water quality improvement and guaranteeing water safety of regional lakes and reservoirs, and is particularly suitable for ecological dredging engineering of shallow lakes, short construction period and fine-particle bottom mud.

The invention relates to a large-model water conservancy business intelligent arrangement calculation method and system. The method comprises the following steps: obtaining hydro meteorological data, hydraulic engineering data, ecological protection data and business management data containing a cross-regional cooperation framework and a scheduling principle, and fusing to generate a hydraulic engineering data set; constructing a water conservancy digital twinborn body based on the water conservancy data set; deducing the water safety situation change through a preset environment evolution model; when the water safety situation change reaches a preset threshold value, analyzing a cooperation framework and a scheduling principle in the service management data through a decision engine based on the situation change and the digital twin, and generating a water conservancy service scheme containing a cross-domain cooperation constraint condition; analyzing the cross-domain collaborative constraint condition by adopting a graph neural network, and generating a multi-service logic topological graph; and generating a water conservancy business execution instruction sequence based on the structural features of the topological graph. According to the invention, water conservancy business full-process intelligent decision-making and cross-domain cooperative scheduling are realized, and the water safety guarantee capability is improved.

The invention relates to the technical field of water resource management, in particular to a regional water resource optimal configuration method and system.The method comprises the following steps that a domestic water prediction model and an ecological water prediction model are constructed based on LSTM and used for predicting domestic water and ecological water of a target region respectively, meanwhile, the production water of the target area is estimated through a quota method; predicting the available water supply amount of the target area, and obtaining a future supply and demand analysis result of the water resource of the target area in combination with the prediction results of the domestic water, the ecological water and the production water; when the water demand of the target area is difficult to meet, obtaining the water shortage rate and the economic benefit of the water resource optimal configuration plan based on a WEAP model; and establishing a water resource optimal configuration model, and further comprehensively considering the water shortage rate and the economic benefit to obtain an optimal water resource optimal configuration plan. According to the water resource optimal configuration method, the coordinated development of economic, social and ecological environments can be realized while the water use safety is guaranteed.

The invention relates to the technical field of intelligent water supply, in particular to a flow partition intelligent water supply method and system. The data sensing layers are installed at the tail ends of the main pipes and the branch pipes of all the flow partitions, partition water supply data are collected in real time, water quality data are subjected to multi-dimensional analysis through a water quality monitoring mechanism, water quality abnormity is accurately recognized, a cleaning instruction is generated, intelligent monitoring and self-cleaning of water quality are achieved, and the water quality monitoring efficiency is improved. The problem of bacterium breeding caused by static water flow is effectively solved, and water safety is guaranteed; through cooperative operation of the global data sensing module, the partition pressure analysis module and the pressure compensation module, real-time pressure, historical fluctuation and external influence data in partition flow data are comprehensively analyzed, a pressure compensation instruction is generated in combination with entropy calculation and weight distribution, pipe network pressure is regulated and controlled in real time, and the pressure compensation efficiency is improved. The problems of water hammer effect and unstable tail end water consumption in peak periods are solved, and the stability of a water supply system is improved.

The utility model relates to the technical field of water conservancy projects, and discloses a water conservancy safety monitoring device, which comprises a hollow column, a plurality of through holes, a plurality of pressure sensors and a plurality of pressure sensors, wherein the outer side of the bottom of the hollow column is provided with a plurality of through holes; the bottom end of the hollow column is fixed with the mounting plate, and a plurality of positioning holes are formed in the outer side of the mounting plate; the whole filter cartridge is embedded and fixed at the bottom of the hollow column, and the filter cartridge covers each through hole; and the circular ring and the hollow column are coaxially arranged, and the circular ring is rotationally mounted on the hollow column. A filter cartridge of the water conservancy safety monitoring device prevents floating objects from entering a hollow column, filtered water flows into the hollow column through a through opening, a floating plate is supported by the water, a driving mechanism enables a circular ring to rotate axially, the circular ring drives a shaftless spiral blade to rotate, and when the shaftless spiral blade rotates axially, the floating plate is driven by the circular ring to rotate. Floating objects attached to the outer side of the filter cartridge are pushed away from the filter cartridge, so that the floating objects are prevented from blocking the filter cartridge.

The application discloses a numerical simulation method for nitrogen and phosphorus release of lake and reservoir sediment, and comprises the following steps: step 1, nitrogen and phosphorus migration process division; step 2, calculation of sedimentation flux; step 3, calculation of lithogenic flux; step 4, calculation of release flux; and step 5, optimization of release flux calculation. The method fully considers the dynamic resuspension process of the sediment and the response of the oxidation-reduction environment in the nitrogen and phosphorus release process of the sediment in the deep-water lake and reservoir, realizes continuous dynamic simulation of the nitrogen and phosphorus sedimentation-lithogenesis-re-release process at the water-sediment interface, more scientifically and accurately simulates the nitrogen and phosphorus endogenous release law, and effectively improves the calculation precision of the nitrogen and phosphorus release process, which plays an important role in improving the water safety guarantee of the deep-water lake and reservoir in China.

A method for measuring the concentration of radon 220 and radium-224 in water through a bubbling method comprises the steps that based on a bubbling measuring device, water on the surface layer of the water surface is sampled and put into a sample bottle, a pump of an RAD7 radon measuring instrument is started, the radon 220 contained in a water sample is put into the RAD7 radon measuring instrument and tends to be stable, the concentration of the radon 220 coming out of bubbling of the water sample measuring bottle and the concentration of the radon 220 in the water in the water sample measuring bottle are balanced, and the concentration of the radon 220 contained in the water sample measuring bottle is calculated. And recording a concentration curve of the radon-220 in the gas measured by the RAD7 radon measuring instrument from the starting state to the equilibrium state. The concentration of the radon 220 in the water is determined through a bubbling method, relevant expressions of the concentration of the radon 220 in all positions of different spaces of the device are established, and the expressions are substituted into the expressions to solve the concentration of the radon 220 and the concentration of the radium-224 in the water. The measurement method is used for calculating the concentration of the radon 220 and the concentration of the radium-224 in the water, the calculation process is simple, the calculation result is accurate, the concentration of the radon 220 and the concentration of the radium-224 in the water sample can be continuously monitored and analyzed for a long time, a basis is provided for knowing regional water source quality, water pollution control, agriculture and animal husbandry water and the like, and the method is suitable for popularization and application. The underground water environment and resident drinking water safety are ensured.

A device relating to a floater for use by a non-swimmer for buoyancy comprising a floating flatbed with coded descriptions (lateral ends: front end 14, back end 12) and a plurality of paired straps with buckles (20,22) to secure the floater flatbed (10) fixed in the swimmer’s body. This is designed to keep the non-swimmer afloat while concentrating on their hand and leg exercises. The floating flatbed is wrapped either at the upper limbs posterior or anterior portion of the body; a webbing belt with safety mechanisms buckled around the body which can be fixed at the levels; waist, abdominal, and upper back (posterior) or chest part (anterior). An adjustable strap is buckled across shoulders (24, 26) to fasten the device in place below the jaw with a plane surface of a floater which allows use purposely for either supine or prone floating mechanics fundamental in learning the basic skills for any appropriate floating position. Apparently, problems like drowning and other water accidents happen in just any part of the globe usually caused by panic and water anxiety. The device contains characteristics easy for use by non-swimmers at any age level for water safety and training device for non-swimmers particularly those who manifest water anxiety. Acquired skill in floating somehow creates mental alertness as a greater opportunity for survival during atrocities.

The invention discloses an embankment gushing risk evaluation method based on an embankment gushing formation mode, and the method comprises the steps: constructing the formation mode of the embankment gushing risk through employing the outboard flood occurrence probability as a triggering premise, employing a riverbed instability coefficient as a disaster-causing factor, and employing the stability degree of an embankment as a resistance capability; according to the calculation method for obtaining the embankment gushing risk according to the evaluation model, the embankment gushing risk can be quantitatively analyzed and calculated, the embankment gushing risk point can be effectively recognized, the weak river reach of the embankment can be defended in a targeted mode, passive water safety incident handling is changed into active water safety risk prevention and control, and the method is the key for guaranteeing the flood control safety of the river channel. And the method is universal for safety protection of other river dikes in the world, and has popularization significance.

The application is suitable for the technical field of water quality monitoring, and provides an intelligent skin-beautifying digital-display water quality filtering monitoring device.The device body is provided with a water channel, and a plurality of independently arranged fixing shells are arranged on the lower side of the device body.A circuit board, a fragrance stick and a filtering material are sequentially arranged in the fixing shells.The fixing shell outside the circuit board is provided with a display screen, the display screen is connected with the circuit board, and a TDS testing unit is connected to the circuit board.The TDS testing unit is used for monitoring whether the water quality meets the requirements when the water passes through the water channel.The water quality monitoring data monitored by the TDS testing unit is intuitively fed back to the display screen, and the user can be timely prompted to replace the filter element, so as to solve the problems that the current water quality monitoring equipment of the market user adopts visual self-determination or mechanical month recording form, the water quality in different places is different, the user misjudgment is caused and the water safety is affected.

The invention discloses marine rescue equipment, which belongs to the technical field of personal overwater safety equipment and comprises a front floating block binding mechanism serving as an inner layer and a rear floating block binding mechanism serving as an outer layer. The inner layer mechanism and the outer layer mechanism are combined through multi-point matching of the shoulders, the back and the waist, and stable closed-loop locking is formed through the crotch belt. The core innovation is that a precise and detachable mechanical linkage connection structure is arranged between the inner waistband and the outer waistband. When the equipment is lifted upwards in rescue, the structure can intelligently convert passive pulling force into active and radially inward hooping force, so that the inner waistband is automatically tightened, and the binding force between the equipment and the body of a user is greatly enhanced. Through a unique double-layer closed-loop structure and a dynamic self-locking mechanism, the rescue slippage risk is fundamentally eradicated, the structure is stable and reliable, and the safety and success rate of sea rescue are remarkably improved.

The present application provides a launching slide assembly and a launching device, the launching slide assembly comprising a launching slide, a slide rail, and a launching auxiliary assembly; the launching slide is used to be installed on the hull; the slide rail is installed on the launching slide for sliding the part to be entered into the water; the launching auxiliary assembly is installed on the launching slide and is arranged on one side of the slide rail; the launching auxiliary assembly comprises a swing seat and a support seat, the swing seat is swingably installed on the launching slide; the support seat is installed on the swing seat and supports the bottom of the part to be entered into the water; when the hull is tilted downward relative to the launching slide, one end of the bottom of the part to be entered into the water floats on the water surface, and the other end is supported by the support seat, so that the part to be entered into the water is in a horizontal state and leaves the launching slide, and the part to be entered into the water continues to maintain a horizontal state during the entry process, avoiding the part to be entered into the water in a tilted state entering the water, improving the safety of the part to be entered into the water with the assistance of the launching slide assembly, and reducing the difficulty of launching the part to be entered into the water.

The utility model is suitable for the technical field of water area safety equipment, and provides a water conservancy project safety protection device which comprises a protective fence fixedly arranged on the edge of a water area, and an installation sleeve is fixedly arranged on the protective fence; the winding roller is mounted in the mounting sleeve, a safety rope is wound on the winding roller, the free end of the safety rope extends to the outside of the mounting sleeve, a control part is fixedly arranged at the end of the winding roller, and a clamping part for fixing the position of the control part is arranged on the outer side wall of the safety sleeve. And the clamping piece fixes the control piece when the control piece rotates to a preset angle, so that the multifunctional integrated protection device is arranged, the first-aid safety rope is mounted on the protection device, the length of the safety rope can be adjusted during use, the safety rope is locked during use, and the safety of the first-aid safety rope is guaranteed. And the safety during rescue is ensured.

The invention belongs to the technical field of water conservancy project intelligent management, and particularly relates to a reservoir intelligent water regimen monitoring and joint dispatching management system which comprises a sensing layer, a transmission layer, a platform layer and an application layer which are of a four-layer collaborative architecture. The sensing layer, the transmission layer, the platform layer and the application layer are coupled and linked to realize full-process intelligent management, the sensing layer comprises an air sensing unit, a ground sensing unit, an underwater sensing unit and an engineering sensing unit, and the platform layer comprises an edge computing node and a cloud brain. The application layer comprises a dynamic weight joint scheduling module, a hierarchical intelligent early warning module and a visual management module; the system is an intelligent system with total factor perception, high-precision data processing, dynamic collaborative scheduling and high-reliability emergency capability, and the comprehensive management efficiency and the water safety guarantee level of a basin reservoir group are improved.

The utility model discloses a fingerprint water cup, which comprises a cup body, the cover comprises a lower cover arranged in the cup body and an upper cover arranged above the lower cover; the lower cover comprises a lower shell hinged to the upper cover through a hinge shaft, a suction nozzle fixedly installed on the lower shell and a rotating wheel rotationally installed between the lower shell and the suction nozzle, and the hinge shaft of the upper cover and the lower shell is sleeved with a torsional spring. The switch mechanism is arranged in the cover, and the fingerprint identification module and the controller are arranged in the cover. By means of the fingerprint identification technology, only a user entering fingerprints can open the water cup, the risk of cross infection caused by the fact that a plurality of users take wrong water cups when using the water cup is avoided, drinking water sanitation is guaranteed, only the user entering fingerprints can open the water cup, other people can be effectively prevented from putting foreign matter into the water cup, drinking water safety is guaranteed, and the water cup is convenient to use. Meanwhile, the fingerprint unlocking sensitivity is high, the recognition speed is high, the user only needs to slightly press the finger to quickly open the water cup, and convenience and rapidness are achieved.

1. The name of this design product: Water Conservancy Well House. 2. Purpose of this design product: to ensure water safety. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

This invention discloses a drinking water safety treatment device and method. Its structure includes a water distribution inlet, a coarse filter group, a coarse filter grid, a sedimentation group, a conveying pipe, a connecting pipe, a disinfection group, an adjustment and dosing group, an adjustment tank, a bubble separation group, a surface separation group, and a filter media group. The water distribution inlet and the coarse filter grid are integrated. The coarse filter group is assembled inside the coarse filter grid and is detachable. The sedimentation group is connected to the adjustment tank via the conveying pipe. The adjustment tank is connected to the disinfection group via the connecting pipe. The adjustment and dosing group is mounted on the surface of the adjustment tank for control. This allows for efficient separation and removal of algae, oil films, and microbubbles in the water after coarse filtration and before fine filtration. It prevents algae, colloids, and oil films from adhering to and coating the filter media surface, while also preventing bubble accumulation and retention that could cause air blockage or false blockage of the filter media. This effectively extends the service life of the filter media, reduces equipment maintenance frequency, and ensures long-term stable operation of the water treatment process.

The application provides a method for determining a scheduling mode of reservoir flood control storage capacity released in stages at the end of flood season, and relates to the technical field of reservoir scheduling. The method comprises the following steps: collecting and arranging basic data, including hydrological and meteorological data, information of flood protection objects downstream, and data of reservoir scheduling parameters; determining a release time of reservoir flood control storage capacity based on multiple factor conditions; determining a release discrimination index of reservoir flood control storage capacity according to water level characteristics of a flood control station; carrying out risk analysis and risk atlas drawing of reservoir flood control storage capacity release; and determining a recommended flood control storage capacity release scheduling mode according to the flood control risk atlas. The application determines the release time of reservoir flood control storage capacity and the corresponding discrimination index by comprehensively considering multiple factor conditions, and draws a downstream flood control risk atlas on the basis of flood regulation calculation, and finally determines the recommended flood control storage capacity release scheduling mode in stages, which is of great significance for flood resource utilization at the end of flood season, improvement of reservoir storage guarantee rate, guarantee of downstream flood control safety and water safety.

The invention relates to the technical field of water treatment, discloses an intelligent water making and taking system and a water taking method, and aims to overcome the defects of existing intelligent water drinking equipment in the aspects of water quality monitoring, cloud control, voice interaction and the like. The system comprises: a water quality detection module arranged at a water inlet end and a water outlet end of equipment and used for detecting water quality in real time; the cloud control module receives the water quality data and generates an equipment control instruction; the voice recognition module is integrated in a local device and provides a localized voice recognition function; and the mobile terminal application module provides a remote monitoring and control interface. By adopting the technical scheme, early warning of water quality abnormity of a regional water source, accurate life prediction of filter element performance, remote intelligent configuration and scheduling of equipment operation parameters and non-sensitive equipment operation in a scene of weak network signals or interruption can be realized, and the drinking water safety and the user experience are remarkably improved.

The direct drinking machine comprises a direct drinking machine body, a containing concave position is formed in the front upper side of the direct drinking machine body, and connecting protruding parts protruding towards the middle are arranged on the left side wall and the right side wall in the containing concave position; the direct drinking machine further comprises a rotating water outlet module arranged in the containing concave position, the left side and the right side of the upper portion of the rotating water outlet module are each provided with a hinge opening used for being hinged to the connecting protruding part, and a water outlet used for discharging water is formed in the lower side of the rotating water outlet module. Through the arrangement of the containing concave position, the rotary water outlet module can be protected from interference and damage of the external environment, and the water outlet hole is hidden through the rotary water outlet module hinged to the containing concave position; therefore, the water outlet hole can be prevented from being exposed in a natural space for a long time and polluted by dust or bacteria, the healthy drinking water standard of the direct drinking machine can be further improved, and the use experience and drinking water safety of a user are ensured.

The present application discloses a water injection device for a hydrogen-rich water station, which relates to the technical field of water production and use equipment. The device includes a water station body, a water filling tank containing a water supply barrel for filling water, and a down-pressure hole on the top of the water filling tank of the water station body; a down-pressure device is installed on the water station body, which can be a device with a down-pressure function such as a telescopic cylinder; the water injection pipe is made of metal material, and the top is connected to the water pipe; the middle shell is installed on the water injection pipe, and the piston cylinder is slidably connected to the bottom of the water injection pipe, and is partially located in the movable cavity; the bottom end of the middle shell is fixed with a first ring plate, the top end of the piston cylinder is fixed with a second ring plate, and the top wall of the movable cavity is installed with an ejection spring, at which time the bottom end of the piston cylinder is flush with the bottom end of the water injection pipe; the middle shell is arranged on the top of the water filling tank of the water station body, and the down-pressure device is used to drive the middle shell to move down and reset, and the middle shell part passes through the down-pressure hole. The present application has the effect of improving the safety and hygiene of hydrogen-rich water injection at the hydrogen-rich water station.

The utility model discloses a water feeding device for free-range breeding of native chickens, and relates to the technical field of poultry breeding. The stirring device comprises a water bucket, a bucket cover is in threaded connection with the water bucket, a stirring assembly is arranged on the bucket cover and comprises a rotating handle connected to the upper end of a rotating shaft, the rotating shaft is rotationally connected with the bucket cover, and stirring rods connected to the peripheral side wall of the rotating shaft are located in the water bucket; a water feeding assembly is arranged on the peripheral side wall of the water bucket, one end of a communicating pipe contained in the water feeding assembly communicates with the peripheral side wall of the water bucket, a pedal is connected to the lower surface of a connecting plate arranged at the other end of the communicating pipe, and a movable rod is connected to the lower surface of a batten connected to the upper surface of the connecting plate. The stirring assembly is arranged to stir and mix water and nutrient particles in the water bucket, the functionality of the water feeding device is improved, the water feeding assembly is arranged, a proper amount of water is conveniently guided into the water box, residual water in the water box is reduced, and the water drinking safety of the native chickens is improved.

The utility model relates to a floating bridge type water temporary safety channel. The floating bridge type overwater temporary safety channel comprises a channel unit, the channel unit comprises single-side supporting frames, buoys, building wood formworks, battens and longitudinal rods, the two single-side supporting frames are connected through the longitudinal rods, and the buoys are arranged between the left sides of the lower portions of the two single-side supporting frames and between the right sides of the lower portions of the two single-side supporting frames. Battens are uniformly arranged between the middle parts of the two single-side support frames, are arranged along the axial direction of the longitudinal rod, and are provided with a building wood template. The cross rods, the cross fasteners, the short vertical rods, the inclined supporting rods, the long vertical rods, the rotary fasteners, the direct fasteners and the longitudinal rods are all connected through the fasteners to form the framework, the batten, the building wood formwork and the dense safety net are installed in the framework, and the overwater safety channel for temporary wading operation can be used as the overwater safety channel for temporary wading operation. The materials such as the buoys, the scaffold steel pipes, the fasteners and the battens are low in purchase cost and can be reused, and the whole body is more stable after bearing.

The invention belongs to the technical field of measurement, and relates to a qualitative and quantitative analysis method for drinking water disinfection by-products based on effect orientation. According to the method, a drinking water sample is separated in a grading manner, high-toxicity components are screened out in combination with cytotoxicity evaluation, disinfection by-products in the high-toxicity components are identified in a non-targeted manner by utilizing a high-resolution liquid chromatography-mass spectrometry technology, and identified high-toxicity substances are determined by virtue of a quantitative structure-activity relation model; and finally, constructing a pretreatment and instrument detection method so as to realize accurate quantitative analysis of the key toxic substances. According to the method, the recognition efficiency of high-toxicity new disinfection byproducts in drinking water is remarkably improved, a toxicity evaluation system is perfected, the quantitative detection process is optimized, rapid batch analysis is achieved, efficient technical support is provided for drinking water safety guarantee, and the requirements of modern drinking water supervision for wide coverage and high-frequency monitoring are met.

The application discloses a kind of quantitative tidal river section pollutant flux analysis method, comprising the following steps: S1, the equation of concentration variation of pollutant is established;S2, the water flux equation of river section at the time period to be studied is established;S3, based on water flux equation and the equation of concentration variation of pollutant at the section, the pollutant flux equation of river section at the time period to be studied is established;According to the pollutant flux equation, the hourly flux of pollutant at the section at the time period to be studied is calculated.The application can calculate the hourly variation process of pollutant concentration which sufficiently reflects the concentration oscillation caused by reciprocating flow by inputting tidal level and limited concentration data into the equation of concentration variation of pollutant, and based on the hourly variation data of pollutant concentration, the pollutant flux at the section at a certain time period in the future can be calculated hourly according to the pollutant flux equation, and finally the total pollutant flux at the section per day can be counted, which provides scientific support for water safety decision-making of city managers.