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132 results about "Estuary" patented technology
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An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments known as ecotone. Estuaries are subject both to marine influences—such as tides, waves, and the influx of saline water—and to riverine influences—such as flows of fresh water and sediment. The mixing of seawater and fresh water provide high levels of nutrients both in the water column and in sediment, making estuaries among the most productive natural habitats in the world.
Integrated system for shellfish production: encompassing hatchery, nursery, brood-stock conditioning and market conditioning phases; also water treatment, food supplement, propulsion, anchoring, security, and devices for the integration of neighborhood values and shellfish production.
InactiveUS20030094141A1Reduce theftClimate change adaptationPisciculture and aquariaRiver mouthWater quality
The invention (the process, its supporting devices, and applications) serves the endeavor of shellfish aquaculture. The invention improves and innovates: 1) tidally powered systems for raising shellfish seed, 2) grow-out, 3) brood stock conditioning, 4) market conditioning, & food supplement, 5) hatchery systems, 6) hatchery / nursery integration, resource sharing and optimization, ergonomics and economics, 7) water treatment, 8) Propulsion, 9) Anchorage, 10) Security, and 11) Devices for the Integration of Neighborhood Values and Shellfish Production. Such large increased economies of production suggest new uses for shellfish. Shellfish grow-out can provide cost effective and ecologically advantageous infrastructure benefits to eroding beaches, unstable channels, and water quality and the health of estuaries in general. The system is flexible in operation so that it may maximize the use of estuarine tidal energy and phytoplankton in order to maximize the ecological and economic benefits of the operation. The system is designed with particular attention to Virginia and Federal law so that permitting needs are minimized. Moreover the system is optimized to fit in well with the estuarine community and be a desirable, unobtrusive neighbor.
Owner:DAVIS RUSSELL P
Tidal/wave flow electrical power generation system
InactiveUS7116005B2Provide capabilityEasy to installWind motor controlPump componentsEngineeringFlywheel
An integrated system for tidal / wave flow electrical power generation. This bi-directional system utilizes the wave flow on the shores and the flow of various rivers and estuaries to generate electrical power through a venturi box which has mounted in it and comprises of the following components: a vane assembly with variable pitch vanes made from high impact blade material; a drive shaft assembly that connects the vane drive unit with the generator; a flow detection vane that determines velocity and direction thereby providing input to the flow detection controller and variable pitch computer and controller; a solid state voltage regulator; a mechanical fly wheel assist for the drive assembly during transition between flow direction; a grid cycle input device to match the power being generated with the grid. This system is capable of being coupled together both physically and electrically. The generator unit assembly is a field replaceable unit to ease installation and maintenance. The venturi box design mitigates slit and sand build-up. The vane radial design limits the damage by flotsam and provides a means of reducing fish damage as well.
Owner:CORCORAN III JAMES JOHN
Sea vessel tagging apparatus and system
InactiveUS8131213B2Extended active deploymentSonic/ultrasonic/infrasonic transmissionRadio transmissionThird partyIdentification device
The present invention discloses a tagging and identification device and system for tracking and monitoring sea vessels as they enter sea ports, estuaries and / or other channels. The tagging device of the present invention comprises a receiver, for receiving an underwater electromagnetic signal transmitted by an underwater beacon. An acoustic transmitter is provided for transmitting an identification signal to an acoustic receiver deployed nearby. The acoustic identification signal is transmitted after an electromagnetic trigger signal is received from the underwater beacon. The tagging and device may further comprise a memory device which can store data relating to position and time of the see vessel to which it is attached. The tagging and identification device of the present invention is covert, compact and is capable of extended active deployment without replenishment of batteries etc. The identification tagging device and system of the present invention is capable of being deployed for tracking the location of sea vessels without the knowledge of the vessel crew. The system of the present invention allows third a third party to monitor suspect vessels as they enter specific ports or estuaries.
Owner:WFS TECH
Movable type plant floating island chain applicable to estuary of lake
InactiveCN102139960AFully purifiedConducive to flood drainageBiological water/sewage treatmentRiver mouthBiological filter
Owner:HOHAI UNIV
Drainage system estuary pier bar swirl chamber composite energy dissipation method
The present invention relates to hydraulic engineering, and is composite energy dissipating method with pier grating swirl chamber in the estuary of drainage system. The diffusion cell of the present invention includes a water inlet, side walls and a water outlet, and has one first row of pier grating comprising energy dissipating piers in the water inlet and one second parallel row of pier grating comprising energy dissipating piers in the water outlet to form one powerful swirl chamber in between. The present invention has obvious energy dissipating effect caused y hydraulic jump, swirl chamber and energy dissipating piers. The present invention has simple design, easy construction and low cost.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES
Method for building ecology risk assessment model for estuary
InactiveCN102496070ACalculation method is simpleEvaluation method is simpleInstrumentsRiver mouthEngineering
The invention relates to a method for building an ecology risk assessment model for an estuary; the method comprises the following steps of: building an ecology risk assessment index system covering biological diversity indexes, comprehensive pollution indexes and pressure indexes of social and economic development in an estuary region; determining the standard values of risk upper limits and risk lower limits of the indexes in the index system according to the existing standard values, and carrying out standardization processing on data of stations; determining the weights of the indexes by using an analytical hierarchy process, and obtaining ecology risk values by weighting and adding; carrying out section division on the estuary region; and obtaining the risk value of each section after division, disclosing a space-time distribution pattern of the ecology risk in the estuary region and discriminating main factors resulting in the risks of the estuary region. The method provided by the invention has the advantages of being simple and objective, disclosing the space-time distribution pattern of the ecology risk in the estuary region, accurately accessing and discriminating the current situation of the ecology risk in the estuary region and main risk factors and providing a reliable theory and technical support for establishing a watershed ecology risk early warning mechanism and ecology risk management.
Owner:OCEAN UNIV OF CHINA
Submarine topography change detection and analysis method based on mesh reconstruction
The invention discloses a submarine topography change detection and analysis method based on mesh reconstruction. By adopting the method, the digitization and the standardization of historical terrains with a plurality of sources at different stages, and the reconstruction of a marine multi-dimensional space-time mesh are achieved, so that the quantitative analysis of the submarine topography change is achieved; detailed technical processes and methods are provided; data with a plurality of sources can be effectively utilized in the marine surveying and mapping process; the problems of efficient utilization and uniform standard contrast of the historical terrains in high terrain change areas of coastal estuaries and the like are overcome; the comprehensive utilization efficiency of the historical data quality and the data with the plurality of sources is improved; the submarine topography change detection and analysis method has an important practical application value in marine monitoring, marine surveying and mapping, research of computer graphics and marine science.
Owner:SECOND INST OF OCEANOGRAPHY MNR
Hydraulic power generation system driven by compression air produced by fluid
InactiveUS20090293469A1Emission reduction for energy storageWind energy generationAir compressionEngineering
A hydraulic power generation system driven by compression air produced by fluid is provided. The present invention is featured in that it employs more than one group of windmills which can be driven by wind power, or utilizes hydraulic power, such as a river flow, tides at estuaries or bays to drive more than one group of hydraulic turbines. The rotation power of the windmills or the hydraulic turbines then drives a transmission and subsequently drives an air compressor to produce compression air. The compression air is compressed with a specific pressure and collectively stored in an air compression tank. The compression air stored in the air compression tank is guided to a water filled hermetic tank. The hermetic tank is connected with a hermetic water tower having a certain height, in which the hermetic tanks and the hermetic water tower are connected with a communicating pipe by which a pressure can be conducted. According to the Pascal's principle, when suffering the pressure of the compression air, the water stored in the hermetic tank is transmitted to the hermetic water tower up to a certain height thus obtaining a potential energy. The water is collectively stored at the certain height to obtain a large amount. Such a large amount of water can be downwardly guided to drive a hydraulic turbine which is connected to a power generator for generating power. After releasing the potential energy, the water can be conducted back to the hermetic tank via another communicating pipe for recycle use.
Owner:CHEN TIEN CHUAN
Hydraulic power generation system driven by compression air produced by fluid
InactiveUS7877992B2Emission reduction for energy storageWind energy generationAir compressionEngineering
A hydraulic power generation system driven by compression air produced by fluid is provided. The present invention is featured in that it employs more than one group of windmills which can be driven by wind power, or utilizes hydraulic power, such as a river flow, tides at estuaries or bays to drive more than one group of hydraulic turbines. The rotation power of the windmills or the hydraulic turbines then drives a transmission and subsequently drives an air compressor to produce compression air. The compression air is compressed with a specific pressure and collectively stored in an air compression tank. The compression air stored in the air compression tank is guided to a water filled hermetic tank. The hermetic tank is connected with a hermetic water tower having a certain height, in which the hermetic tanks and the hermetic water tower are connected with a communicating pipe by which a pressure can be conducted. According to the Pascal's principle, when suffering the pressure of the compression air, the water stored in the hermetic tank is transmitted to the hermetic water tower up to a certain height thus obtaining a potential energy. The water is collectively stored at the certain height to obtain a large amount. Such a large amount of water can be downwardly guided to drive a hydraulic turbine which is connected to a power generator for generating power. After releasing the potential energy, the water can be conducted back to the hermetic tank via another communicating pipe for recycle use.
Owner:CHEN TIEN CHUAN
Inversion method for offshore secchi disk depth based on HICO simulation
InactiveCN106053370AQuick monitoringAccurate monitoringTransmissivity measurementsColor/spectral properties measurementsSecchi diskCorrelation analysis
The invention relates to the technical field of remote sensing, more specifically to remote sensing quantitative inversion of the secchi disk depth of an offshore sea area, such as bays and estuaries. An inversion method for the secchi disk depth based on HICO simulation comprises the following steps: (1) obtaining of actually-measured hyperspectral data and secchi disk depth data; (2) hyperspectral data processing; (3) spectral signature analysis; and (4) correlation analysis and construction of an inverse algorithm. Compared with a conventional measurement method for the secchi disk depth, the method is more suitable for inversing the offshore secchi disk depth based on an HICO satellite sensor. The method is convenient and enables the offshore secchi disk depth to be fast accurately monitored.
Owner:OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
Apparatus for treating Lake Okeechobee water
ActiveUS20140048466A1Enhanced water treatmentEnhanced mass transferWater cleaningSpecific water treatment objectivesElectrolysisContinuous flow
Disclosed is a water treatment apparatus for treating Lake Okeechobee water. The treatment apparatus operates on a continuous flow of water which is subjected to hydrodynamic waves, acoustic ultrasonic waves in combination with injected ozone and electrolysis. The treatment system provides a cost efficient and environmentally friendly process for cleaning contaminated water that is directed into estuaries, lagoons, intracoastal waterway, everglades, and the ocean. Treatment includes addressing various levels of contaminants such as aerobic bacteria, often called a green slime that produces a bio-film. The apparatus can be mounted on a vessel to permit targeting of algae blooms.
Owner:BRISBEN WATER SOLUTIONS
Remote-sensing calculation method of long-term variation of suspended sediments of strong-tide high-turbidity estuary
InactiveCN109283144AScattering properties measurementsColor/spectral properties measurementsSpectral curveSensing data
The invention discloses a remote-sensing calculation method of long-term variation of suspended sediments of a strong-tide high-turbidity estuary. The method comprises the following steps: step S1, receiving Landsat satellite remote-sensing data in different years and the same hydrological condition; step S2, processing the remote-sensing data; step S3, carrying out spectral measurement above spring / neap-tide water surfaces, carrying out synchronous surface layer suspended-sediment sampling, obtaining remote-sensing reflectivity, analyzing wavebands where spectral curve peak values are located, selecting waveband data which are of different sensors on Landsat and correspond to reflectivity peak values, establishing a statistical regression model between surface layer suspended-sediment concentration and remote-sensing reflectivity corresponding to sensitive wavebands, and then obtaining an optimal calculation mode of quantitative remote sensing through accuracy verification calculation, wherein wavebands corresponding to the peak values are the sediment sensitive-wavebands; and step S4, applying the optimal calculation mode, which is of quantitative remote-sensing and is obtained in the step S3, to the remote-sensing data after processing in the step S2, obtaining remote-sensing data of the suspended sediments of all regions in the different years and the same hydrological condition, and carrying out analysis of long-term variation of the suspended sediments.
Owner:ZHEJIANG INST OF HYDRAULICS & ESTUARY
Systems and methods for intercepting submarine groundwater for desalination
InactiveUS20090241685A1Lower energy requirementsVolume/mass flow measurementMaterial analysis by optical meansWater desalinationOcean bottom
The systems and methods described herein allow for intercepting submarine groundwater discharge to be used as a supply source for desalination processes. In one practice a dye-dilution seepage meter is employed as a device for locating water sources. These meters can be placed in estuaries and other locations that may be candidate locations to test for flows of groundwater. In areas of suspected SGD, the meters can be deployed to quantify the potential yield and quality (e.g. salt content) of the resource. Regarding the water quality, it is important to note that even brackish water sources can greatly reduce the energy needed to achieve potable water by desalination.
Owner:WOODS HOLE OCEANOGRAPHIC INSTITUTION
Freshwater-capturing and accumulating-type emergency water supply dispatching method in salt-tide affected areas
InactiveCN107516172AAccurate determination of the salinity boundary outside the sluiceImprove water securityResourcesComplex mathematical operationsDry seasonRiver network
The invention relates to a freshwater-capturing and accumulating-type emergency water supply dispatching method in salt-tide affected areas and belongs to the technical field of water supply safety guarantee. The method includes the steps of S1, integrating Zhujiang river estuary-river network integral salt-tide mathematical models to accurately determine outer salinity boundaries and finely formulate water gate operation schemes in joint dispatching of delta joint gate pump groups; S2, establishing a water gate-river-reservoir-pump station joint dispatching based freshwater-capturing and accumulating-type emergency water supply dispatching model, wherein four modules for water gate freshwater capturing, river freshwater accumulating, reservoir salt dispatching and pump station freshwater supplying are arranged, and expression forms of the models include objective function and constraint conditions; S3, establishing a freshwater-capturing and accumulating-type emergency water supply dispatching evaluation index system of the salt-tide affected areas, namely a freshwater-capturing and accumulating-type evaluation index system; S4, determining a regional freshwater capturing and accumulating scheme by the aid of the freshwater-capturing and accumulating-type emergency water supply dispatching method in salt-tide affected areas. With the method, water supply safety in dry seasons in the salt-tide affected areas is effectively guaranteed.
Owner:PEARL RIVER HYDRAULIC RES INST OF PEARL RIVER WATER RESOURCES COMMISSION
Underwater monitoring apparatus for pump station entrance
InactiveCN101296370AReduce volumeEasy to installProgramme controlManual control with multiple controlled membersSupporting systemNuclear power
The invention discloses an underwater monitor at the estuary of a pump station, which essentially comprises a flexible installation supporting system, an underwater image pickup system which is carried on the flexible installation supporting system, a grounding alarm system, a monitoring system and a controller; the controller is respectively connected with the flexible installation supporting system, the underwater image pickup system, the grounding alarm system and the monitoring system by control lines to drive or control the operation of the systems. The invention not only has the advantages of small volume, convenient and efficient installation, wide applicability, good reliability and visualized and simple operation, but also is particularly applicable to underwater places of the estuaries of a nuclear power station and the pump station, or underwater fields with fast water or underwater fields in which people can not arrive in.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
Vertical barrier fencing for containing contaminated materials, and use thereof
InactiveUS20110305517A1Protecting uncontaminated areaInstallation economyWater cleaningClimate change adaptationFiberMarsh
A system for separating contaminated materials from clean natural waterways and environmentally safe areas that thrive in wildlife breeding grounds, wetlands, marsh grass, natural vegetation, and wildlife habitats. The invention provides an effective and relatively inexpensive apparatus and process for hazardous material containment along shorelines, rivers, and estuaries (for maximum protection against contamination). Vertical erected fiber mesh filter fabric which allows clean water molecules to pass through but does not allow heavier / larger contaminated molecules to enter into uncontaminated areas, either from surface areas or subsurface areas. A floating boom acts as an oscillating scrub brush as tidal waters increase (rise) as well as an absorbent pad for the contaminated materials. One-way tidal doors allow juvenile sea life to naturally migrate to deeper safe havens with normal daily tidal changes.
Owner:BORRIES SAMUEL DOUGLAS
Cooling oil circulation of a motor-vehicle transmission with a control valve
InactiveUS20100218642A1Reduced space requirementsReduce manufacturing costGear lubrication/coolingLine tubingEngineering
An oil cooling circulation for a vehicle transmission comprising a transmission enclosure (1) having an input pipeline (2) and a return pipeline (3) for oil exchange between the inner area of the transmission and an oil cooler. A control valve (5) is provided which, by activation of a pre-loaded valve part (6) sliding along a center line of the control valve (5), the return pipeline (3) can be coupled with the supply input line (2). The valve part (6) has, at the return pipeline (3), a pin shaped top part and the transmission enclosure (1) has a borehole (4), penetrating the supply input line (2) and the return pipeline (3), in which the control valve (5) is positioned. The valve part (6) of the control valve (5) is slidingly positioned between a borehole bottom and a provided supporting part (10; 10′; 10″; 10′″) in the estuary of the borehole (4).
Owner:ZF FRIEDRICHSHAFEN AG
Medium and small watershed pollution source analysis method based on multi-drain-outlet checking and monitoring
PendingCN111199341AAvoid Applying ConditionsAvoid too many parametersGeneral water supply conservationCharacter and pattern recognitionPrincipal component analysisWater quality
The invention belongs to the technical field of water environment protection, and discloses a medium and small watershed pollution source analysis method based on multi-drain-outlet checking and monitoring. The method provided by the invention comprises the following steps: (1) checking an in-river sewage drain outlet: determining the distribution, type and the like of the in-river sewage drain outlet, summarizing a check table, and encoding the in-river sewage drain outlet; drawing a sewage drain outlet position electronic map; (2) synchronously monitoring the water quantity and the water quality of the estuary; (3) analyzing a basin pollution source: calculating the average value of water quantity and water quality in each water period; and counting the discharge amount of various pollution sources, and analyzing the pollution contribution of various pollution outlets to the drainage basin. Compared with a factor analysis method and a principal component analysis method, the method has the advantages that the defects that a source analysis model has certain application conditions, more parameters and higher analysis result uncertainty are avoided, and the pollution contribution of each type of emission source and even each emission source can be obtained. The analysis result is objective and is close to the actual emission condition, so that the target is provided for accurate source control, and the drainage basin pollution treatment efficiency is improved.
Owner:SHANDONG PROVINCIAL ECO ENVIRONMENT MONITORING CENT
Coastal zone sea area oyster larva enhancement and releasing adhesive substrate device and building method
InactiveCN104430078ANot easy to coverStrong adhesionClimate change adaptationPisciculture and aquariaOysterWater quality
The invention relates to a coastal zone sea area oyster larva enhancement and releasing adhesive substrate device and building method. The building method comprises the combined adhesive substrate material selection and manufacturing method, the adhesive substrate seed-adhering technology, the building method of an adhesive substrate suspension breeding device, and the like. The method is characterized in that the rubber tire and oyster shell combined adhesive substrate which is portable, resistant to corrosion and low in cost is developed, and a manufacturing and building method of the adhesive substrate suspension breeding device which can resist stormy waves and improve the survival rate of oyster larvae is provided. The coastal zone sea area oyster larva enhancement and releasing adhesive substrate device and building method are successfully applied in enhancement and releasing of the high-suspended-sediment coastal zone sea area at Yangtze Estuary, the survival rate and adhesive rate of the oyster larvae are improved, the adhesive substrate and the suspension breeding device can resist large stormy waves, and the maintenance cost is low. The coastal zone sea area oyster larva enhancement and releasing adhesive substrate device and building method have the advantages of being easy and convenient to operate, popular and easy to understand, good in effect and the like, can improve the yield of oysters, also achieve the functions of water purification and biological diversity of the conservation water area, have good generalizability, and also have high feasibility in enhancement and releasing of other oyster varieties.
Owner:EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
Glass plate sampler for collecting micro-surface water samples and sampling method thereof
InactiveCN110160840AGap width adjustableReduce volumeWithdrawing sample devicesVertical edgeEngineering
The invention discloses a glass plate sampler for collecting micro-surface water samples, and the sampler comprises a glass plate and a fixed sampling bracket, wherein the fixed sampling bracket comprises an outer frame bracket, a first glass scraper, a first plastic plate, a middle partition, a water sample collecting bottle, a fixed partition, a second glass scraper and a second plastic plate; the first plastic plate and the second plastic plate are respectively disposed on both sides of the outer frame bracket, the first glass scraper is disposed on the vertical edge of the first plastic plate, the second glass scraper is disposed on the vertical edge of the second plastic plate, a gap is formed between the two glass scrapers; the middle partition is provided with a circular hole, whichis aligned with the first glass scraper and the second glass scraper; the fixed partition is disposed at the lower part of the outer frame bracket, the bottom of the water sample collecting bottle isplaced on the fixed partition, and the bottle mouth of the water sample collecting bottle is aligned with the circular hole. The device has the advantages of simple structure, low cost, small volume,light weight, convenient carrying and single operation, and is suitable for the research of micro-surface environmental and ecological aspects such as oceans, lakes and estuaries.
Owner:SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
Method for improving water temperature stratification characteristic of channel reservoir tributary bay by internal wave
ActiveCN102704440AImprove hydrodynamic strengthImprove the ecological environmentMarine site engineeringEcological environmentThermocline
The invention belongs to the technical field of improvement and restoration of reservoir water ecology, and relates to a method for improving water temperature stratification characteristic of a channel reservoir tributary bay by internal wave. During a water temperature stratification period of the tributary bay, fluctuation is generated from letdown flow, and water level of a reservoir fluctuates, so that tide is formed at the estuary of the tributary bay. Tide type inflow and outflow are formed between the bay and a trunk reservoir and have shear effect at the thermocline, so that tide interval wave is generated near the thermocline. Water of the thermocline flows reversely since the tide internal wave transmits along the thermocline, so that alternate flow is generated, water temperature fields are mixed, and then water temperature stratification is improved. Deepwater reservoir equal-density stratification water is aroused to generate internal wave under reservoir regulation, andthus natural underwater stirring movement is formed. The method is easy to implement, has influence to large-scope water, improves water dynamic strength remarkably, suppresses water temperature stratification and achieves the purposes of improving water ecological environments.
Owner:CHINA THREE GORGES CORPORATION
Method for monitoring polycyclic aromatic hydrocarbons (PAHs) in surface seawater by means of remote sensing
ActiveCN107044985AImprove the level of monitoring technologyReduce health risksOptically investigating flaws/contaminationOffshore waterSurface water
The invention discloses a method for monitoring polycyclic aromatic hydrocarbons (PAHs) in surface seawater by means of remote sensing. According to the method, the large-area distribution of the remote sensing inversion concentration of the dissolved PAHs in the surface water of estuaries and bays is obtained by establishing a content algorithm model for quantitatively expressing the dissolved PAHs of the ocean by using water color parameters such as chromophoric dissolved organic matter (CDOM) concentration of the estuaries and the bays, and applying the content algorithm model to images of a geostationary ocean color imager (GOCI) of a first geostationary meteorological satellite sensor on the world. After the method is adopted, the contamination status of the PAHs in offshore waters can be monitored by means of remote sensing; the method is mainly used for monitoring the distribution characteristics of marine pollutants in ways of large area and high frequency. The remote sensing-based monitoring model for monitoring the distribution situation of the PAHs in the surface water of estuaries and the bay is proposed based on analysis of measured data and is applied to satellite data of the GOCI, and remote sensing monitoring of the PAHs concentration is realized in virtue of the remote component CDOM in the seawater.
Owner:HANGZHOU NORMAL UNIVERSITY
Tidal/wave flow electrical power generation system
InactiveUS20060181085A1Provide capabilityEasy to installPump componentsWind motor controlFlywheelShore
An integrated system for tidal / wave flow electrical power generation. This bi-directional system utilizes the wave flow on the shores and the flow of various rivers and estuaries to generate electrical power through a venturi box which has mounted in it and comprises of the following components: a vane assembly with variable pitch vanes made from high impact blade material; a drive shaft assembly that connects the vane drive unit with the generator; a flow detection vane that determines velocity and direction thereby providing input to the flow detection controller and variable pitch computer and controller; a solid state voltage regulator; a mechanical fly wheel assist for the drive assembly during transition between flow direction; a grid cycle input device to match the power being generated with the grid. This system is capable of being coupled together both physically and electrically. The generator unit assembly is a field replaceable unit to ease installation and maintenance. The venturi box design mitigates slit and sand build-up. The vane radial design limits the damage by flotsam and provides a means of reducing fish damage as well.
Owner:CORCORAN III JAMES JOHN
Water color parameter inversion device and method for near-shore estuary
InactiveCN105891124AImprove inversion accuracyMaterial analysis by optical meansRiver mouthRemote sensing reflectance
An embodiment of the invention provides a water color parameter inversion device and method for a near-shore estuary. According to the embodiment, a water bio-optical model is established through acquisition of remote sensing reflectance and water color parameters of the near-shore estuary, and the water bio-optical model is subjected to parameter optimization according to the acquired remote sensing reflectance and water color parameters; a near-shore estuary water color parameter inversion model of the water bio-optical model is established on the basis of a parameter optimization result of the water bio-optical model, water color parameter inversion of the near-shore estuary is realized, and an inversion result is obtained. With the adoption of the embodiment, the inversion precision of the water color parameters of the near-shore estuary can be improved.
Owner:SHANDONG UNIV OF TECH
Sewage purification device applied to eutrophic river estuary
ActiveCN109354198AAvoid direct impactIncrease dissolved oxygen concentrationWater treatment parameter controlTreatment using aerobic processesEutrophicationBioremediation
The invention belongs to the technical field of sewage treatment, and discloses a sewage purification device applied to the eutrophic river estuary. The device includes a floating bed frame and a power mechanism. An aerator and an air guide pipe connected with the aerator are arranged on the floating bed frame. The inner side of the floating bed frame is connected with a plurality of parallel PVCpipes. The PVC pipes are connected with the air guide pipe, aquaculture grids are arranged between the PVC pipes at intervals, and the salt-tolerant plants are planted on the aquaculture grids. Aeration pipes are arranged on the lower portions of the aquaculture grids at intervals, one end of each aeration pipe is communicated with the corresponding PVC pipe, and a counterweight ball is tied to the other end of the each aeration pipe; four corners of the floating bed frame are provided with support columns, the support columns are connected with ropes, and the free ends of the ropes are fixedon the river bank. The eutrophication problem of a water body of the river estuary is mainly solved by the bioremediation and aeration technology, the device is simple in structure, light and good inanti-corrosion performance, a frame body can change along with the fluctuation of tide and rotate and move by itself, solar energy and rainwater are used for generating electricity, and energy conservation and environment protection are achieve.
Owner:HAINAN UNIVERSITY
Aluminum alloy anode suitable for high-resistivity environment and preparation method thereof
The invention discloses an aluminum alloy anode suitable for high-resistivity environment and a preparation method thereof, and belongs to the technical field of corrosion and protection. The aluminum alloy anode consists of the following elements in percentage by weight: 4.0-6.0% of zinc, 0.015-0.030% of indium, 0.05-0.40% of silicon, tin not more than 0.02%, titanium not more than 0.03%, impurity content: iron not more than 0.07%, copper not more than 0.001%, and the balance of aluminum. The aluminum alloy anode is excellent in performance in seawater, and can be applied to places with higher performance requirements, including seabed mud and water with low salinity, such as estuaries and bays; the level is attenuated along with increment of the resistivity to be obviously lower than the level of a general aluminum anode; in diluted seawater of 70-80 omega.cm, the working level is lower than -1.05 V, and the capacitance is higher than 2600 A.h / Kg; and the aluminum alloy anode is specifically suitable for cathode protection of such structures as seabed Christmas tress, pipelines and seabed sinking pipe type tunnel shells, and is economical and practical.
Owner:SUNRUI MARINE ENVIRONMENT ENG
Apparatus for treating Lake Okeechobee water
ActiveUS8999154B2Improve treatmentImprove the mixture of effluent with ozoneElectrostatic separatorsSludge treatmentElectrolysisContinuous flow
Disclosed is a water treatment apparatus for treating Lake Okeechobee water. The treatment apparatus operates on a continuous flow of water which is subjected to hydrodynamic waves, acoustic ultrasonic waves in combination with injected ozone and electrolysis. The treatment system provides a cost efficient and environmentally friendly process for cleaning contaminated water that is directed into estuaries, lagoons, intracoastal waterway, everglades, and the ocean. Treatment includes addressing various levels of contaminants such as aerobic bacteria, often called a green slime that produces a bio-film. The apparatus can be mounted on a vessel to permit targeting of algae blooms.
Owner:BRISBEN WATER SOLUTIONS
Underwater water curtain method for controlling salt tide of estuary
ActiveCN108914875AEnhanced agitationFully contactedMarine site engineeringHydraulic modelsSaline waterFresh water organism
The invention discloses an underwater water curtain method for controlling a salt tide of an estuary. An observation station arranged in an estuary area is utilized to monitor upstream runoff, open sea tide level and upstream salinity of the area to construct a database of long sequences; the change relationship of the upstream runoff, the open sea tide level and the upstream salinity and local salinity is studied, and an empirical model forecasting the local salt tide is formed by means of statistical means such as relevance. According to the underwater water curtain method, by sucking upperlayer fresh water and make the fresh water sprayed out from the bottom, bottom salt water mass stirring is started and promoted, a salt water wedge structure is damaged, and the riverway salinity is reduced. The water spraying amount is automatically adjusted according to locally forecasted salinity, the water spraying amount is reduced when the salinity is low, and the water spraying amount is improved when the salinity is high, the salt water mass comes into full contact with the fresh water, the riverway salinity is reduced, and the basis is provided for taking water from the estuary area.
Owner:HOHAI UNIV
Process and related apparatus for repairing aquatic propeller scars
A process and apparatus for planting aquatic plants underwater on the bottom of estuaries in propeller scars and for encouraging plant growth in propeller scars. Aquatic plant shoots are transplanted by positioning shoots in a sediment tube which is in turn placed in the propeller scar. When the sediment tube is placed in the propeller scar the sea grass shoots are held in position for an extended period of time to allow the sea grass shoots to take root on the estuary bottom. The sediment tubes may be preformed or they may be formed just prior to their placement in the estuary. A watercraft may be used to position the sediment tubes with and without sea grass shoots over an area of the propeller scar. With the process and apparatus of this invention, sea grass plants can be replanted on the bottom of an estuary and new plant growth encouraged in propeller scars. Further in accordance with another embodiment of this invention a tube or other obstruction without plant shoots is placed in a propeller scar in order to impede water flow through the propeller scar. When water flow through the propeller scar is impeded natural plant growth is encouraged.
Owner:ANDERSON JAMES F
Shoreland gradient combined type direct surface runoff pollution control system and method thereof
PendingCN107082529AImprove purification effectMultistage water/sewage treatmentTreatment involving sedimentationRainfall runoffControl system
The invention discloses a shoreland gradient combined type direct surface runoff pollution control system and a method thereof. The system comprises a water collection tank, a U-shaped purifying device and an overflow pipe which are sequentially connected and buried under ground surface, wherein a water outlet of the water collection tank is higher than a water inlet of the overflow pipe, the water inlet of the overflow pipe is higher than a water outlet of the overflow pipe, and the water outlet of the overflow pipe extends into a river channel and is higher than a normal water level of the river channel. Polluted direct surface runoff water flows into the water collection tank to be precipitated primarily, liquid supernatant obtained after precipitation enters the U-shaped purifying device through the water outlet of the water collection tank to be purified, the purified liquid supernatant directly enters a river or enters the river after flowing through a turf buffer zone, a hygrophyte and submerged plant system at an estuary can further purify the runoff water, and gradient control on direct surface runoff pollution is achieved. The shoreland gradient combined type direct surface runoff pollution control system disclosed by the invention has small occupancy, stable structure, good purifying effect and important significance in preventing and treating rainfall runoff pollution and protecting river channel water environment.
Owner:上海昂未环保发展有限公司
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