20 results about "Water transparency" patented technology

The application discloses the technical fields of environmental monitoring and water analysis and relates to a water transparency detector with self-immunization of optical window pollution, which comprises a light source, a first reflector, a beam splitter, a sample cell, a second reflector and a third reflector. The first reflector reflects the light of the light source to the beam splitter, and the beam splitter divides the light into transmitted light and reflected light. The transmitted light transmits through the sample cell and is converged by the second reflector to a transmitted end photoelectric detector. The reflected light is converged by the third reflector to a reference end photoelectric detector. The water transparency can be calculated according to the light intensity of the transmitted end photoelectric detector and the reference end photoelectric detector. The application dynamically offsets the error caused by the optical window pollution, light source fluctuation and detector drift through a double-light-path signal and a clean and polluted window pollution error double-ratio real-time compensation algorithm, so that the measurement accuracy can be ensured without a physical cleaning device. In addition, the application can monitor the change trend of the light intensity ratio and actively sense the degree of optical window pollution.

The present application relates to the technical field of water environment treatment and ecological restoration, and discloses a water transparency improving device and method based on an intelligent linkage dosing system, the water transparency improving device based on the intelligent linkage dosing system comprising a water transparency sensor, a suspended substance concentration sensor, a chlorophyll a sensor, a data acquisition and discrimination module, a medicament dosing control module, a medicament storage and dosing module and a medicament spraying module; the water transparency sensor, the suspended substance concentration sensor and the chlorophyll a sensor are arranged in a target water body; the data acquisition and discrimination module is connected with the water transparency sensor, the suspended substance concentration sensor and the chlorophyll a sensor respectively; the medicament dosing control module is connected with the data acquisition and discrimination module and the medicament storage and dosing module respectively; and the medicament storage and dosing module is connected with the medicament spraying module. The present application realizes intelligent and automatic improvement of water transparency.

The present application relates to the field of eutrophication lake water ecological restoration, and discloses a device and system for improving underwater light conditions of a lake. Natural light on the water surface is introduced into the underwater area near the device through refraction and reflection by using a light path system, effectively improving the underwater light intensity. A wave dissipation system is arranged below the light path system to prevent disturbance of the water body and sediments by small waves, to a certain extent, reducing the influence of sediments and resuspension on water transparency, and further improving the underwater light conditions. The light path system, the wave dissipation system and the underwater fixing system are sequentially fixed and connected from top to bottom, and the height of the light path system and the wave dissipation system is adjusted through the underwater fixing system with the rise and fall of the water surface, improving the applicability of the device. The device has the characteristics of simple structure, convenient operation, good performance, easy installation and recycling, etc. It can effectively reduce the adverse effects of insufficient underwater light of the lake and wave disturbance on the growth of submerged plants.

The invention provides a water transparency environment-ecological coupling analysis method. The method comprises the following steps: acquiring real-time turbidity data of a target water body; constructing a water turbidity and suspended matter concentration relation model based on the turbidity data, and calculating the suspended matter concentration of the target water body; analyzing the concentration of the suspended solids according to the lab rules of sedimentation and resuspension of the suspended solids to obtain a concentration change result of the suspended solids; fitting a suspended matter concentration change result to obtain a data relation model among the water transparency, the turbidity and the chlorophyll concentration, and obtaining an initial water transparency value; analyzing based on the water transparency value to obtain the algae concentration under the corresponding environmental characteristics; and realizing real-time analysis and effective prediction of the shading effect of the water body by dynamically adjusting the transparency value of the water body based on the influence relationship among the turbidity, the algae growth and the transparency of the water body. The water quality monitoring accuracy and efficiency can be improved, and powerful technical support can be provided for water environment treatment.

The invention belongs to the technical field of water body measurement, and particularly relates to an automatic water body transparency measuring system in a light-limited scene and an operation method.The measuring system comprises a saishi disc and a winch, the saishi disc is connected with the winch through a rope, a balancing weight is arranged on the saishi disc, the measuring system further comprises a fixing cylinder, and the fixing cylinder is connected with the winch through a rope. The saybolt disc and the winch are both arranged in a barrel cavity of the fixed barrel, a light source, a camera and ultrasonic detection equipment which are located above the saybolt disc are arranged in the barrel cavity, the barrel wall of the fixed barrel is hollowed out, and the camera and the ultrasonic detection equipment are in signal connection with a processor. The measuring system and method can supplement light to the surrounding environment of the water body, reduce the influence of light limitation on measured data, accurately and automatically measure the transparency of the water body in real time, and contribute to formulating a unified judgment standard for the measurement of the transparency of the water body.

The invention provides a water transparency monitoring method and equipment based on turbidity measurement, belongs to the technical field of water environment monitoring, and aims to solve the problems of poor accuracy and stability of a monitoring result caused by poor fitting degree of a conversion model and neglect of environment illumination interference in the prior art. The method comprises the following steps: collecting an original turbidity value of a water body, water surface incident illumination intensity, a weather type and a water body type; compensating and correcting the original turbidity value based on the collected parameters to obtain a compensated turbidity value; and substituting the compensated turbidity value into a preset power exponent relational expression, and calculating to obtain the transparency of the water body. The equipment comprises an acquisition module and a processing module and is used for executing the method. According to the invention, through a strategy of first compensation and then conversion, the ambient light interference is effectively offset, the monitoring precision and stability of the full turbidity interval are improved, and low-cost and automatic continuous monitoring can be realized.

The utility model relates to the technical field of water ecological purification, and discloses a multifunctional ecological combined base net which comprises a floating body, the floating body floats on the water surface and is designed at the rear end of an upstream face, a base net body is installed at the lower end of the floating body and arranged in a water area, and the floating body is connected with the base net body. And a high-strength phosphorus removal filler is mounted at the lower end of the base net body. According to the multifunctional ecological combined base net, the base net body is of a latticed structure and a mesh structure, plant roots are fixed, emergent aquatic plants and submerged plants are assisted to grow, the self-cleaning capacity of a water body is enhanced, a biological fiber rope is installed in the base net body and is of a bionic structure, and the bionic structure attracts microorganisms; meanwhile, organic matters are decomposed through microbial metabolism, pollutants such as nitrogen and phosphorus in the water body are reduced, meanwhile, the geotechnical cloth and the ecological base net form a multi-layer net-shaped structure, and the multi-layer net-shaped structure can slow down the flow speed, promote sediment and suspended matter sedimentation and improve the transparency of the water body.

The invention provides a water-leaving reflectivity determination method, a water transparency determination method and a water-leaving reflectivity determination device. According to the specific implementation scheme, a water surface image is obtained, the image content of the water surface image comprises a water body, a color card and a reflector, and the color card comprises a plurality of color blocks with different reflectivity; cutting the water surface image to obtain a first image block related to a water body, a second image block related to mirror surface information of a reflector and a plurality of third image blocks related to a color card; determining a first reflectivity related to the first image block and a second reflectivity related to the second image block based on the pixel information of the first image block, the pixel information of the second image block, the pixel information of the plurality of third image blocks and the reflectivity information of the plurality of color blocks; the off-water reflectance is determined based on the first reflectance and the second reflectance.

This invention relates to the field of aquaculture technology, specifically to a remediation agent for aquaculture water environments and its preparation method. The remediation agent comprises a modified biochar composite material, Chlorella microspheres, a cross-linking agent, and a microbial composite inoculant. The modified biochar composite material is prepared through steps such as mixing attapulgite with biomass raw materials, acid activation, and pyrolysis, and further modified with tannic acid to enhance its adsorption capacity. The Chlorella microspheres are prepared using sodium alginate and CaCl2 solution, exhibiting good suspension and stability. The microbial composite inoculant contains various beneficial bacteria that can decompose organic matter and reduce ammonia nitrogen and nitrite content. The remediation agent binds the components together using a cross-linking agent to form granules, facilitating application and recovery. This remediation agent possesses highly efficient pollutant removal capabilities, significantly improving water quality in aquaculture water bodies, increasing water transparency, increasing dissolved oxygen, and promoting the health and stability of aquatic ecosystems.

The utility model provides a water transparency detection device which comprises a base, a sliding groove is formed in the base, a sliding block is movably installed in the sliding groove, a limiting seat is fixed to the sliding block, a supporting seat is welded to the limiting seat, a box body is fixedly installed on the supporting seat, a driving motor is fixedly installed on the box body, and the driving motor is connected with the sliding groove. A fixing pipe is fixedly installed at the bottom of the supporting seat, an open groove is formed in the fixing pipe, a connecting rope is movably installed in the open groove, and a monitoring assembly is fixed to one end of the connecting rope. When the water transparency detection device is used, the fixed pipes are combined and mounted to form a straight pipe, the straight pipe is used for limiting and fixing the connecting rope, the phenomenon that the connecting rope shakes during use to cause movement of a marking point is avoided, and observation and detection under the vertical stability in the later period are facilitated.

The present application relates to the field of ecological restoration, and more particularly to a method for restoring the ecology of a coastal wetland, which comprises the following steps: removing invasive species from the area to be restored; laying an ecological restoration substrate; planting the sea grass in a cluster-strip composite pattern; introducing biological communities in batches every two months; setting up a tidal response system and an intelligent monitoring platform to monitor the condition of the area to be restored; and the ecological restoration substrate comprises 40% oyster shells, 40% coral sand and 20% bentonite. The method for restoring the ecology of a coastal wetland provided by the present application forms an "algae-grass barrier" by planting sea grass and eucheuma alternately, effectively improves the water transparency and promotes photosynthesis; the disturbance behavior of benthic animals such as sea cucumbers enhances the oxygen penetration depth and oxidation-reduction potential (Eh) of the sediments, and improves the bottom environment; and the gradient buoyancy planting device realizes tidal self-adaptation, ensuring the stable growth of the sea grass under different water level conditions.

The application relates to a lake transparency estimation method, and belongs to the field of satellite remote sensing and application thereof. The application aims to solve the technical problem that the existing lake transparency test cannot realize continuous monitoring in a large-scale range. The method comprises the following steps: the normalized water-leaving reflectance combination model of the MSI sensor of the Sentinel-2 satellite is used to estimate the transparency of Chinese lakes; the normalized water-leaving reflectance data of the red edge band and the red band are substituted into the following formula to estimate the water transparency: SDD=(rhown5 / rhown4-0.799) / (0.134). The method can realize long-term high-precision monitoring of lake transparency, and can compensate for the defect that the existing lake transparency test cannot realize continuous monitoring in a large-scale range. The model effect of the lake transparency estimation model is good, and the lake transparency can be accurately estimated.

The application relates to a semi-closed lake water ecological restoration method applied to the field of water treatment, which realizes ecological restoration of the semi-closed lake by constructing a lake water ecological system, environmental protection dredging and silt treatment, and composite ecological revetment and estuary wetland and water system interconnection regulation, so that water transparency is improved, and a replicable highland lake ecological restoration technical system is formed; in addition, under the action of the composite revetment structure of'mechanical support + anti-seepage + ecological buffer', the lake bank is effectively protected, the bank slope erosion resistance is improved, internal water and soil are effectively maintained, water and soil loss is not prone to occur, meanwhile, under the action of the loosening monitoring unit, the stability of the composite revetment structure can be effectively monitored; when water and soil loss occurs due to excessive erosion of the revetment, the situation can be found out in time, so that the staff can timely maintain, and the abnormal range of the bank is prevented from continuously expanding.

The invention discloses a method for domesticating and cultivating indoor coilia ectenes from juvenile fish to mature parent fish in a whole growth cycle by using a compound feed, and relates to the technical field of aquaculture. According to the method, through staged domestication, the bait types are gradually converted so as to meet the feeding habit requirements of the coilia ectenes at different development stages. In the parent fish rearing stage, the coilia ectenes successfully domesticated in the early stage are continuously fed with the compound feed, the acceptability of the parent fish is high, the spawning fertilization rate can reach 60% or above, and the postpartum survival rate exceeds 90%. By controlling the breeding density and the water transparency and optimizing the survival space and the water quality condition of fish schools, the death rate of residual food is controlled within 8%, and the overall survival rate is increased. According to the method, a bait casting machine is adopted for slowly and continuously feeding commercial feed (without processing), meanwhile, surface tension is used for enabling the feed to float temporarily and sink slowly, the feed simulates the hovering effect in a water body for a long time, and the coilia ectenes are successfully induced to eat the sinking feed. The domestication time is obviously shortened, and the ingestion time and efficiency are improved.

This invention belongs to the field of water environment management technology and discloses a method for efficiently reducing water turbidity and improving water transparency using natural minerals. The method includes: S1, preparing a turbidity removal container using a material that is acid-resistant, corrosion-resistant, and has good water permeability and air permeability; S2, crushing natural minerals rich in iron and aluminum functional substances, then spraying an aqueous solution of iron-sulfur oxidizing bacteria onto their surface, mixing thoroughly, and then placing the mixture into the turbidity removal container; S3, completely immersing the turbidity removal container in the turbid water to be treated. This invention utilizes the iron and aluminum elements in natural minerals to form a large-area, highly active iron-aluminum flocculent gel under the action of water waves and dissolved oxygen. This gel, through charge neutralization and adsorption bridging, aggregates with particulate matter in the water to form larger aggregates, while simultaneously sweeping in suspended small particulate impurities. These impurities then settle to the bottom of the water body by gravity, effectively removing particulate matter, reducing water turbidity, and improving water transparency.

A test device and a method for rapidly determining factors affecting water transparency are provided. The test device comprises a testing pool, a light source, an illumination sensor, an intermediate pool, a water component separating assembly, a stirring assembly and a control system assembly. The light source is above the testing pool. The illumination sensor is at a lower center of the testing pool. The testing pool is communicated with the intermediate pool through pipelines. The illumination sensor measures the transparency of water samples containing different components to determine the influence of each on water transparency. This approach addresses the challenges in quickly diagnosing the causes of low water transparency and analyzing the impact of sudden pollution events with existing technology. Consequently, this test device helps in swiftly identifying the main pollution factors in low-transparency water bodies and provides crucial support for the precise management of such water bodies.

The invention discloses a storm-proof baffle for ecological restoration of a water body and a preparation method of the storm-proof baffle, and relates to the technical field of ecological restoration of the water body. The core of the baffle is that a modular baffle unit is adopted, a plate body of the modular baffle unit adopts an asymmetric S-like zigzag structure, and an anchoring structure with anti-pulling teeth is arranged at the lower end of the modular baffle unit and can be inserted into bottom mud to be fixed. The plate body is provided with a gradually-changed aperture ratio structure, and the layered energy dissipation effect that the aperture ratio of the upper portion is small for clipping, and the aperture ratio of the lower portion is large for pressure relief and flow stabilization is achieved. The baffle units are arranged in a low-profile mode in a random orientation and staggered mode to form an array, vortexes close to the bottom layer are effectively scattered, the shearing force of water flow is weakened, and therefore resuspension of bottom mud is restrained. The invention further discloses a preparation method and an application method of the baffle. The method can significantly improve water transparency and bottom layer illumination, promotes recovery of submerged plants, and has the advantages of being eco-friendly, convenient to construct and low in cost.

The invention provides mulberry enterobacter, a microbial composition for water treatment and application of the microbial composition, and relates to the technical field of sewage treatment. According to the present invention, with the application of the Enterobacter morus NC14 and the Euplotes vannus W144Y, the activated sludge is replaced with the Enterobacter morus NC14 and the Euplotes vannus W144Y so as to carry out the biofilm culturing treatment on the MBBR reactor, such that the generation of the residual sludge during the water treatment process can be avoided, and the treatment cost can be reduced. In the river and lake restoration process, suspended solids can be effectively removed, and the turbidity is reduced; the technical effects of improving the transparency of the water body, improving the self-cleaning capacity of river and lake water bodies and achieving the long-acting water body remediation target are achieved.

This invention discloses an ecological restoration method for improving river water quality, comprising the following steps: S1, cleaning up floating debris on the river surface and solid waste along the banks; S2, deploying ecological floating islands on the river surface; S3, regularly monitoring the main pollutant indicators, water transparency, and dissolved oxygen content in the water. This ecological restoration method scientifically configures submerged plant areas and microbial attachment substrate areas in the vertical space of the ecological floating islands. It utilizes the photosynthetic and nutrient absorption capabilities of submerged plants to reduce nitrogen and phosphorus loads in the water and increase dissolved oxygen. Simultaneously, it incorporates specially modified polymer fibers as biomimetic aquatic plants, utilizing their high specific surface area and specific functional groups to adsorb heavy metals and recalcitrant organic matter in the water, significantly improving the transparency of the river water and the self-purification capacity of the ecosystem.

The invention discloses a composite medicament and a method for controlling algae in a floating period. The composite agent is prepared by taking an organic cation polymeric flocculant modified silicon-based material as a substrate and compounding lanthanum modified bentonite. The method disclosed by the invention can efficiently adsorb and remove algae in the floating period, synchronously reduce nitrogen and phosphorus nutritive salts, remove phosphorus, reduce turbidity and improve water transparency and overall water quality, and has the advantages of low cost, high biological safety, environmental friendliness and the like.