1363results about "Water resource protection" patented technology

The invention discloses a distributed model-oriented medium and small watershed sub-watershed division method, which comprises the following steps of S1, collecting digital elevation model data, performing depression filling processing, and extracting preliminary river network information; s2, extracting an actual water system, and calculating a river network main stream grid elevation difference; s3, adjusting digital elevation model data according to the elevation difference, and optimizing a river network extraction result; s4, basin morphological parameters are calculated, and basin classification is carried out through a manifold learning method; s5, constructing a sub-basin optimal threshold calculation model, and dynamically adjusting a sub-basin division threshold; s6, flow direction calculation, confluence analysis and sub-basin division are carried out, and sub-basin boundaries are optimized; and S7, verification is carried out in combination with the distributed hydrological model, the influence of the division result is analyzed, and sub-basin division parameters are optimized. According to the method, multi-scale features, dynamic threshold optimization and hydrological network topology are fused, sub-basin division precision, boundary continuity and hydrological simulation stability are improved, and intelligent basin division is realized.

The invention relates to the technical field of mountainous river fish habitat habitat restoration, and relates to a mountainous river fish habitat restoration method based on numerical simulation optimization, comprising: acquiring habitat data of a mountainous river fish habitat, and performing preliminary ecological restoration measures on the mountainous river fish habitat; constructing a numerical simulation model to predict the erosion and deposition evolution result of the fish habitat in the mountain river after the preliminary ecological restoration in a set period, and identifying an area of which the erosion and deposition evolution degree meets a preset threshold value in the set period; and carrying out riverbed substrate transformation on the identified area based on the target fish, evaluating the habitat improvement effect under the combined action of the preliminary ecological restoration measure and the riverbed substrate transformation through a habitat suitability model, and completing the restoration of the fish habitat in the mountain river based on the evaluation result. According to the method, dredging, spur dike and substrate transformation are combined, and numerical simulation optimization is combined, so that the effectiveness, continuity and scientificity of restoration of the fish habitat in the mountain river are improved.

The invention discloses a large and medium shallow lake water quality improving method based on hydrodynamic optimization and vegetation community restoration, and relates to the technical field of lake treatment and ecological restoration. Comprising the following steps: step 1, reducing lake-entering pollution load; arranging an in-and-out river mouth sediment settling reservoir to increase a river mouth water-passing section; 2, high-concentration water entering the lake and low-concentration water in the lake body are isolated; remodeling a near-shore area terrain of a shore zone where the lake-entering river channel is located, and arranging an ecological submerged beach, a drainage groove and a mud flow capturing groove; 3, improving the habitat of the aquatic plants on the large water surface; designing matrix purse seine units for flow choking and wave dissipation; a plurality of matrix purse seine units are designed to spatially separate a large water surface, and floating plants are fixed in a local area by using the matrix purse seine units; 4, preparing an aquatic plant community; and recovering pioneer floating-leaf plants and submerged plants. According to the method, a hydrodynamic optimization project and a vegetation community reconstruction project are combined, the water quality is improved, and the ecological system structures of large and medium-sized shallow lakes are improved.

The invention discloses a river flow missing data reconstruction method, which comprises the following steps of S1, constructing a river network topological structure, and quantifying hydraulic correlation; s2, spatio-temporal feature fusion and multi-source information extraction; s3, performing multi-task cooperative flow reconstruction and confidence coefficient prediction; s4, dynamic weighting and result correction of meteorological factors; and S5, performing anomaly detection and model dynamic updating. According to the method, a river flow missing data reconstruction method is set, the steps are mutually fused and used, and topology-aware space-time diagram convolution is performed: a river network topology structure is encoded into a weighted adjacency matrix for the first time, space correlation features are extracted through a diagram convolution network, and the problem that a traditional method ignores hydraulic connection is solved; a multi-task collaborative learning mechanism: synchronously outputting a flow reconstruction value and confidence, combining topological smooth constraints, and realizing reconstruction reliability quantification while ensuring precision; and meteorological dynamic weighted correction: dynamically adjusting the node weight based on the real-time rainfall intensity, and accurately adapting to the nonlinear response of the water flow in the heavy rainfall period.

The invention belongs to the technical field of river channel interception, and discloses a composite fluid interception and purification device for river channel ecological restoration, which comprises mounting racks arranged on both sides of a river channel, and also comprises a collection assembly arranged on the mounting racks and used for gathering river channel garbage and aquatic plants. The device is installed in a river channel through the supporting assembly and the connecting assemblies, the two connecting assemblies form an included angle for guiding river channel garbage, the driving motor drives a second transmission gear and a third transmission rod to rotate, and a first transmission gear drives a magnetic chain, a first blocking net and a shifting plate to rotate; garbage is intercepted by a first blocking net under the action of water flow and conveyed into collecting assemblies to be stored through rotation of the first blocking net and a shifting plate, meanwhile, two second transmission gears are meshed with each other, so that garbage in a river channel is conveyed into the collecting assemblies on the two sides of the river channel through reverse rotation of two connecting assemblies, and the river channel cleaning range is guaranteed; and the river channel garbage cleaning effect is effectively improved.

The invention discloses a river and lake polluted bottom mud environment-friendly dredging and solidification treatment continuous treatment method, and relates to the technical field of environmental protection engineering.The method comprises the following components of S100, ecological dredging control range and depth, S200, bottom mud conveying and dewatering, S300, solidification treatment and resource utilization, and S400, residual water treatment and recycling. According to the method, the control range and depth of ecological dredging are accurately determined, the influence of the flow speed and the flow direction on migration and transformation of bottom mud pollutants is simulated through a hydrodynamic model, large-scale release of the pollutants in the dredging process is effectively avoided, meanwhile, in the bottom mud conveying and dewatering stage, efficient conveying equipment and an optimized filtering device are adopted, and the efficiency is improved. Disturbance and release of the bottom mud in the conveying and dewatering process are reduced, and the risk of secondary pollution is further reduced.

The invention belongs to the technical field of riverway treatment, and particularly relates to a riverway sewage ecological restoration treatment device and a method thereof.The riverway sewage ecological restoration treatment device comprises a riverway body and further comprises an intercepting assembly installed in the riverway body, the intercepting assembly comprises an intercepting filter screen, and a water outlet channel is fixed to one side of the intercepting filter screen; the device comprises a river channel body, the surface of the river channel body is rotatably connected with a bidirectional reciprocating screw rod, the surface of the river channel body is in screw connection with a driving motor, the two sides of the surface of the bidirectional reciprocating screw rod are symmetrically in threaded connection with dirt pushing plates, and mud pushing plates are fixed to the bottom ends of the dirt pushing plates. According to the invention, different types of garbage impurities (water surface garbage and river bottom sludge) in the river sewage can be cleaned, multi-stage restoration treatment of the river sewage is completed, the problem of river pollution is solved from multiple aspects, the ecological environment of the river is comprehensively improved, the self-purification capacity of the river is recovered, and the balance and stability of the ecological system of the river are promoted.

The application discloses a flushing system and an intelligent toilet. The flushing system includes a sealed water tank including a tank body and a tank cover connected to the tank body in a sealed way by hot plate welding process and an integrated mechanical valve. The integrated mechanical valve is set on the tank cover, is connected to the tank cover in a sealed way, and includes a water inlet, a water supplementation inlet connected to the water inlet, a water outlet at the water supplementation inlet and away from the water inlet, a buoy mechanism at the water supplementation inlet and a pressing connecting rod structure between the water inlet and the water outlet where the buoy mechanism controls the switch of the water supplementation inlet based on the water level and the pressing connecting rod structure controls the switch at the water outlet by pressing.

The invention relates to a river network grading system and method based on a graph theory and confluence cumulant, and belongs to the technical field of water conservancy projects and geographic information. Comprising the following steps: acquiring original DEM data and water system data, and converting the water system data to a preset projection coordinate system; extracting a primary river network based on the DEM data, and screening the primary river network in combination with the length of the river network and the area of the drainage basin to obtain a simplified river network; river network flow calculation: carrying out flow assignment on each river network element in the simplified river network based on the confluence cumulant; graph theory modeling: abstracting the simplified river network into a directed graph model; and river network grading: reverse tracing is carried out by taking the water outlet as a starting point, and the hierarchical relationship between the trunk and the branch is determined by combining the in-degree / out-degree and the edge weight of the node, so that river network grading is realized. According to the method, river network grading is upgraded from morphological description to hydrological function description, and the method is suitable for high-precision river network refined analysis, intelligent water conservancy emergency management and other scenes.

The invention relates to the technical field of ecological restoration and carbon sink evaluation, and discloses a river and lake ecological buffer zone carbon sink potential evaluation and restoration construction system which comprises a carbon sink potential evaluation module, an intelligent restoration construction module and a collaborative verification module. The carbon sink potential evaluation module is used for collecting soil and vegetation data and calculating the carbon sink potential; the intelligent restoration construction module executes ecological restoration based on a carbon sink potential evaluation result; and the collaborative verification module verifies the repair effect through multi-source data fusion, and returns an optimization instruction to the carbon sink potential evaluation module and the intelligent repair construction module. The vegetation coverage index and the root biomass density are acquired by using a multispectral sensor array, a carbon sink model is constructed by combining the organic carbon content of soil, dynamic weight adjustment is introduced, and the weight is updated according to aerial survey data of an unmanned aerial vehicle in each quarter, so that a more accurate and more economical carbon sink potential evaluation basis can be provided for ecological restoration, and the ecological restoration efficiency is improved. And resource waste and invalid repair are avoided.

The invention belongs to the technical field of assembly type shoreline component design optimization, and particularly relates to an assembly type shoreline component design optimization system. According to the method, the environmental conditions, biological conditions and future demands of the river and lake shoreline are comprehensively considered, rapid optimization of assembly type shoreline component design is achieved by utilizing an intelligent analysis technology, river and lake condition parameters and biological condition parameters of the target shoreline can be automatically obtained and analyzed, future demand parameters are predicted, and the design efficiency is improved. According to the method, the optimal component material, size and connection mode meeting the target shoreline requirement can be screened out through material optimization and structure optimization, an optimal assembly scheme is generated, in addition, a feedback mechanism is further provided, the optimized component design parameters can be comprehensively evaluated, and the optimal assembly scheme is obtained. And carrying out iterative optimization according to an evaluation result until a preset comprehensive feasibility score and an ecological friendliness index are reached, and outputting a final design scheme.

The invention belongs to the technical field of sludge treatment, and relates to a river channel remediation sludge treatment device which comprises a mounting base, a separation cylinder, a rotary cover, a support, a discharging cylinder, a control panel, a discharging frame and a material guide ring, the top of the mounting base is connected with the separation cylinder, and the middle of the upper portion of the separation cylinder is rotationally connected with the rotary cover; the bottom of the separation barrel is provided with a discharge port for discharging sludge, the top of the separation barrel is connected with a bracket, the bracket is connected with a blanking barrel, the mounting seat is provided with a control panel, the bottom of the blanking barrel is communicated with a discharge frame, and the discharge frame is rotatably connected with a guide ring. When the sludge treatment device is used for treating sludge, a plurality of rotatable filter cartridges are arranged, and in the rotating process of the filter cartridges, the processes of sludge adding, water extruding, sludge discharging and the like are sequentially completed; all procedures are continuously carried out, and shutdown for sludge discharge in the treatment process is not needed, so that the treatment process is high in continuity, and the treatment efficiency is improved.

The invention relates to a water ecological restoration system and a restoration method, and belongs to the technical field of water treatment. According to the water ecology restoration system, a retaining wall is arranged on the downstream of the junction of a branch and a river channel, and the river channel is divided into a restoration flow channel and a main flow channel through the retaining wall; a water inlet adjusting mechanism, a desilting cavity, a filter dam, a biochemical treatment cavity, a first overflow dam, an oxygenation cavity, a second overflow dam, a biological protection cavity and a water outlet adjusting mechanism are sequentially arranged on the remediation flow channel from upstream to downstream, a buffer pond is arranged on the river bank side of the biological protection cavity, a planting floating bed is arranged in the biological protection cavity, hygrophytes are planted on the planting floating bed, and a water outlet adjusting mechanism is arranged on the water outlet adjusting mechanism. Submerged plants are arranged at the bottom of the buffer pond. According to the device, aquatic organisms such as fishes can be sheltered, water can be purified, the water ecological restoration effect is good, facilities can be prevented from being destroyed by flood, and the aquatic organisms are protected during flood discharge.

The invention belongs to the field of water ecological restoration, and particularly relates to a riverway water ecological restoration method based on an ecological floating blanket, ecological floating blanket-fish-microorganism is utilized to construct an ecological restoration system to improve a riverway water body, and the ecological floating blanket comprises plants, a carrier, a nylon net, a planting matrix and an inorganic filler; the selected plants are subjected to pollutant degrading bacterium inoculation and tolerance experiment domestication; inorganic filler is hung on the lower part of the ecological floating blanket through a nylon net; the nylon net is subjected to membrane pre-hanging treatment, so that a layer of yellowish-brown biological membrane is formed on the surface of the nylon net; the planting substrate is a combination of multiple of chitosan-potassium alginate coating melamine polyurethane composite foam, biochar, scrap iron and alum sludge ceramsite; the plant provided by the invention is high in tolerance and can efficiently adsorb and degrade pollutants; the planting matrix provided by the invention promotes each other and efficiently adsorbs pollutants; the constructed ecological floating blanket-fish-microorganism ecological planting and breeding technology can promote a receiving river channel to form a food chain system with a healthy water body.

The utility model relates to the technical field of river dredging, in particular to a dredged soil transfer device for river dredging, which comprises a blanking barrel, a bearing device is fixedly connected to the lower part of the outer surface of the storage barrel, a blanking pipe is fixedly connected to the lower part of the outer surface of the storage barrel, and a turnover device is fixedly connected to the middle of the right end of the blanking barrel; the overturning device comprises a driving motor, and the output end of the driving motor penetrates through the discharging barrel and is fixedly connected with a rotating rod. According to the dredged soil transfer device for river dredging, the turnover device, the bearing device and the connecting assembly are arranged, dredged soil is prevented from being blocked in the discharging barrel, it is ensured that the dredged soil can flow smoothly, the risk that the device is damaged due to blockage is reduced, the whole device can be kept stable under different ground conditions, and the service life of the device is prolonged. The applicability of the transfer device under various complex terrains and working conditions is greatly enhanced, and the transfer device is not limited by specific construction environments any more.

The utility model provides an ecological restoration device for a river channel, and belongs to the technical field of ecological restoration of water pollution. The problem that in the prior art, an ecological restoration device is poor in water purification capacity is solved. The ecological restoration device for the river channel comprises a fixed frame and a floating table which is movably connected to the upper portion of the fixed frame and used for planting aquatic plants, the fixed frame is provided with four supporting columns, a plurality of bionic aquatic plants are arranged on the fixed frame and extend in the length direction of the supporting columns, and the floating table is movably connected to the upper portion of the fixed frame. The lower ends of the bionic aquatic plants extend to the lower end of the fixing frame and are fixed, connecting columns are arranged at the four corners of the floating table, and the four connecting columns of the floating table are inserted into the four supporting columns of the fixing frame correspondingly. And the connecting column can stretch up and down relative to the supporting column so that the floating table can float up and down along with the height of the water level of the river channel. The ecological restoration device has the advantage of being capable of improving the purification capacity of the ecological restoration device on water.

The invention discloses a comprehensive data analysis-based river ecological restoration effect evaluation method, and particularly relates to the technical field of ecological restoration evaluation.The method comprises the steps of obtaining ecological function data and ecological structure data of a river restoration area, analyzing the ecological function data in combination with a deep learning model, and constructing a vertical distribution model of photosynthesis efficiency; evaluating photosynthesis contribution differences of different water depth levels; on the basis of ecological structure data, monitoring migration characteristics of key nutrients of a vegetation and bottom mud interface, and quantifying a dynamic relationship between nutrition supply and demand balance and vegetation growth recovery by using an interface coupling model; comprehensively analyzing a photosynthesis contribution difference and a nutrition supply and demand dynamic relationship, and generating a comprehensive evaluation index reflecting a vegetation health state and an ecological restoration degree; and based on the evaluation indexes, the restoration effects are graded, a restoration effect distribution diagram and statistical data are generated, and finally an ecological restoration effect report is output.

The utility model provides an ecological restoration device for a river channel, which belongs to the technical field of ecological restoration and comprises a support. The first connecting seat is fixedly connected to the lower end of the bracket; the second connecting seat is fixedly connected to the upper end of the bracket; the first rotating rod is rotationally connected to the first connecting seat, and a first chain wheel is fixedly connected to the first rotating rod; the second rotating rod is rotationally connected to the second connecting base, the scraping plate driven by the motor is used for desilting work, the device can efficiently remove sludge and floating objects in a river channel, through the design of the scraping plate and the operation mode of the device, it can be ensured that a riverbed is thoroughly cleaned, meanwhile, interference to the water body and riverbed ecology is reduced, and the water quality is improved. Therefore, the river channel can be kept unblocked, the water quality can be improved, and a healthy living environment can be provided for aquatic organisms.

The invention discloses an ecological restoration method and system based on riverway monitoring, and the method comprises the steps: obtaining the water velocity data of a target riverway, and calculating the trend component and fluctuation component of the water velocity data according to a discrete wavelet transform method; the method comprises the following steps: acquiring dissolved oxygen data, ph value data and turbidity data of a target river channel, and respectively preprocessing the dissolved oxygen data, the ph value data and the turbidity data to obtain a change rate of the dissolved oxygen data, a mapping relation function of a ph value and aeration intensity and a fractal dimension of the turbidity data; constructing a comprehensive adjustment factor according to the trend component, the fluctuation component, the change rate, the mapping relation function and the fractal dimension; and inputting the comprehensive adjustment factor into a pre-constructed LSTM model for prediction to obtain an ideal adjustment factor of the target river channel, and adjusting the aeration intensity of the target river channel according to the ideal adjustment factor to realize ecological restoration of the target river channel. According to the method provided by the invention, the accuracy of ecological monitoring of the river channel is improved.

The invention discloses a three-dimensional terrain construction method based on multi-modal semantic constraints, and relates to the technical field of three-dimensional terrain modelling, and the method comprises the steps: obtaining an optical remote sensing image and a digital earth surface model, constructing unified space reference data, and carrying out the joint semantic analysis of ground features under the guidance of the multi-modal semantic constraints; generating a semantic mask set with structural consistency; further performing regional geometric reconstruction on the digital earth surface model on the basis of a mapping relation between semantic categories and earth surface physical attributes to form a three-dimensional terrain entity conforming to ground feature space expression characteristics; meanwhile, by analyzing the project cost document and extracting the project cost data with spatial directivity, under the constraint of spatial consistency and semantic consistency, the project cost information and the three-dimensional topographic entity are subjected to association mapping, and finally a three-dimensional topographic data result fusing topographic geometric information and project economic attributes is formed.

The invention provides an in-situ curing and repairing method for heavy metals in river sediment. The in-situ curing and repairing method comprises the following steps: S1, detecting the content and physicochemical properties of the heavy metals in the river sediment; s2, designing a repair material formula; s3, preparing and putting a repairing material; s4, mixing and stirring the bottom mud and the repairing material; s5, monitoring and evaluating the repairing effect; and S6, repairing effect feedback and adjustment. According to the method, multiple linear regression, curved surface fitting, self-organizing mapping and mixed density network algorithms are fused, the sediment heavy metal content and physicochemical property data are fully utilized, a repair material formula can be accurately designed, and compared with a traditional single algorithm or empirical formula design, the repair material proportion can better fit the actual pollution condition, and the repair efficiency is improved. The utilization rate of repair materials is improved.

The invention discloses a'fine flushing and coarse supplementing 'type riverbed substrate habitat restoration method and system for a small hydropower station quit river reach, and relates to the field of ecological restoration, and the method comprises the steps: obtaining the hydrologic and geomorphic information of the implemented small hydropower station quit river; key habitat area distribution in the river reach influenced by small hydropower station quitting is determined according to hydrological and landform information, and the matrix particle size condition of the key habitat area and the part and thickness of water flow scouring and silting are determined; determining a riverbed substrate habitat restoration scheme (including pebble supplement, boulder group arrangement, ecological spur dike arrangement and ecological water guide barrage arrangement) by combining the key habitat restoration layout map; simulating the restoration effect based on the riverbed substrate habitat restoration scheme and the hydrodynamic sediment transport model, and adjusting the riverbed substrate habitat restoration scheme according to the simulation result to obtain the optimal riverbed substrate habitat restoration scheme. According to the method, the damaged river reach of river degradation caused by small hydropower station quitting can be recovered, and the natural landform state of the river is recovered.

The invention provides a river sediment physical habitat evolution identification method, device and system and a medium. The method comprises the following steps: acquiring a multi-temporal remote sensing image and hydrological data (flow Q, water level Zw and slope S), screening and other hydrological condition image pairs; extracting a water surface range, and calculating the average width B of the main groove; deducing the average water depth h by using a Manning formula, and calculating the riverbed elevation zbed by combining the Zw; the difference value delta zbed of zbed in different periods is calculated, and the substrate state is judged according to the difference value delta zbed and a threshold value epsilon; and performing segment processing along the center line to output a spatial distribution result. On-site measurement is not needed by relying on conventional data, and consumption is reduced; water level interference is eliminated through equal hydrological condition matching, and comparability is ensured; water depth inversion and differential analysis directly reflect scour deposition and quantitatively reveal rules; long-distance automatic processing improves space-time coverage capability and precision, and provides a basis for river regulation, ecological restoration and drainage basin management.

The invention relates to the field of riverway ecological protection, in particular to vegetation restoration equipment for riverway ecological protection and a restoration method. A drainage shell is movably arranged on the side, away from the river bank, of the fixing plate in the vertical direction and located at the front end of the floating plate, a first opening is formed in the end, in the length direction, of the drainage shell, water flow of the river flows into the drainage shell from the first opening, and an adsorption groove is formed in the side wall, away from the fixing plate, of the drainage shell in a penetrating mode. A net cage is arranged in the drainage shell, is located in the drainage shell and is located on one side of the adsorption tank, the drainage shell is divided into a first drainage channel and a second drainage channel by the net cage, water flowing into the drainage shell from a first opening of the drainage shell enters the first drainage channel, and water flowing into the drainage shell from the adsorption tank enters the second drainage channel; a lifting box is arranged in the net cage in the vertical direction in a reciprocating mode, and a second opening is formed in the upper portion of the lifting box. The garbage intercepting device improves the garbage intercepting effect.

The invention belongs to the technical field of image target recognition, and particularly provides a data augmentation and YOLO improvement-based accurate river target detection method, which comprises the following steps of: acquiring a river water surface target image, and augmenting the river water surface target image by using a multi-data augmentation strategy to obtain an augmented image; a re-parameterization variable attention feature extraction module and a multi-branch fusion reconstruction module are introduced into the YOLO network, and the augmented image is combined to construct a riverway water surface target detection model; and performing target detection on a to-be-detected riverway water surface target image based on the riverway water surface target detection model to obtain a target detection result. Through data augmentation and multi-module design, the detection capability of the model on few samples, small targets and multi-scale targets is improved, complex background interference is effectively inhibited, and the method is more suitable for river scenes.

The utility model provides a double-water-outlet faucet structure. A first water pipe and a second water pipe which are independent are arranged in a stand column of the double-water-outlet faucet structure. The lower fixed connector is located at the axial upper end of the stand column, a first annular water channel on the peripheral side of the lower fixed connector is communicated with a first water pipe, the lower movable connector is rotationally arranged outside in a sleeving mode and provided with a first water outlet nozzle, the lower movable connector is sleeved with the lower rotary arm, an inner first water outlet channel is connected with the first water outlet nozzle, and a lower water outlet is formed in the tail end of the lower rotary arm. A second annular water channel on the peripheral side of the upper rotating arm is communicated with a second water pipe, the upper movable connector is arranged outside in a sleeved mode and provided with a second water outlet nozzle, the upper rotating arm is arranged outside in a sleeved mode, a second water outlet channel inside the upper rotating arm is connected with the second water outlet nozzle, and an upper water outlet is formed in the tail end of the upper rotating arm. Diversified water use requirements are met, water use convenience and flexibility are improved, the defect that installation is limited in places can be overcome, and the application range of faucet products is widened.

The invention relates to the technical field of model construction, and provides a river channel hydrodynamic model construction method based on multi-source remote sensing, and the method comprises the steps: obtaining a river channel remote sensing image so as to obtain a waterline, obtaining water level data through a height measurement satellite, and giving an elevation value to a point location corresponding to the waterline according to the waterline and the water level data; the straight river reach is valued according to a specific rule, and the curved river reach is determined according to linear fitting of a plurality of elevation measuring point values on the river section; based on the waterline elevation values of the straight and curved river reach, interpolation is further carried out along the waterline, a riverway terrain digital grid model is constructed, a riverway hydrodynamic model is constructed by using the riverway terrain digital grid model, and the simulation effect of the hydrodynamic model is judged by comparing the water level consistency or the water surface vector form consistency. And calibration and verification of the river hydrodynamic model are realized. And accurate simulation of the river hydrodynamic process is realized. According to the method, the model parameter acquisition cost can be reduced.

The invention discloses a river and lake sludge dewatering and curing ecological bank protection process. Ecological bank protection construction is achieved through in-situ resourceful treatment of sludge. The process comprises the following steps: firstly, pressing natural wood piles into the bottom of a bank slope to form a comb-shaped anti-sliding bent frame, and paving high-strength permeable geotextile pipe bags between the piles and the bank slope; bottom mud is extracted by adopting mud suction equipment, is modified by a flocculating agent and then is injected into a tubular bag in a layered manner, and gravity dehydration is completed by utilizing the permeable characteristic of tubular bag fabric; the tops of the pipe bags are backfilled with stacking materials for graded stacking, and solidification is accelerated through external pressurization to form a stable bank protection filling body; and finally, the surface layer is covered with planting soil, moisture-proof plants are planted, and the composite revetment with the permeation drainage function and the ecological function is constructed. Compared with a traditional technology, the technology effectively solves the problems of bottom mud outward transportation pollution and resource waste through triple synergy of geotextile tube bag gravity dehydration, natural timber pile stability enhancement, building body strength improvement through graded stacking and loading and the like, and the formed revetment has ecological restoration and landscape functions. The method is suitable for ecological restoration of rivers and lakes, wetland reconstruction and waterfront environment treatment, and has the comprehensive advantages of convenience in construction, environmental friendliness, economy and high efficiency.

A flush toilet comprises a bowl including a waste receiving surface and a rim, a discharge trap conduit, a spouting portion provided in the bowl to spout the flush water, a flush water supply device configured to supply the flush water to the spouting portion, a waste information acquisition device configured to acquire an information regarding the waste excreted in the bowl, and a controller configured to determine a waste state by using the information regarding the waste and control the flush water supply device based on determination of the waste state. The controller controls the flush water supply device based on the determination of the waste state of the waste for each flush to the toilet so as to change a spout mode of the flush water spouted from the spouting portion

The invention relates to the technical field of ecological restoration, in particular to a novel ecological base material for ecological restoration of a river bank side slope and a preparation method and application of the novel ecological base material. The novel ecological base material is prepared from the following raw materials: planting soil, basalt fibers, nano silicon dioxide and cement. The preparation method comprises the following steps: taking the planting soil, crushing, air-drying, and sieving with a 2mm screen; and uniformly mixing and stirring the sieved planting soil, basalt fibers, nano silicon dioxide and cement to obtain a solid mixture, adding water into the solid mixture until the water content is 18.5-19.5%, and uniformly stirring to obtain the novel ecological base material. According to the novel ecological base material, the strength of soil can be greatly improved, the toughness of the soil is improved, the cracking resistance of a soil body is enhanced, dependence on cement is reduced, and carbon emission can be reduced; and on the other hand, the base material has a certain gain effect on plant growth, further has a remarkable promotion effect on adjustment of soil properties and hydrological environment, and also has a positive effect on carbon sequestration.