132 results about "Estuary" patented technology

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.

The invention relates to a movable type plant floating island chain applicable to an estuary of the lake. A series of floating island monomers are connected by an antiseptic rope to form a floating island chain, wherein the head end of the floating island chain is fixed to a shore, and the tail end of the floating island chain is controlled by retracting and releasing a rope system, so that the floating island chain is arranged along the full section of a riverway during the non-flood discharge period, and is moved to the shore to be fixed during the flood discharge period or high wind. The movable type plant floating island chain has the advantage that: the capacity of purifying the floating islands is improved by planting aquatic plants with a function of purifying water quality on a carrier and collocating with biological filter bulb fillers hung in a hexahedral frame on the lower part of a floating bed through the aquatic plant purification technology and biomembrane technology. A series of floating island monomers are connected together to form the movable type plant floating island chain of which the head end is fixed and the tail end is movable, so the movable type plant floating island chain can be arranged along the full section to purify the water quality fully and also can be moved to the shore during the flood period without influencing flood discharge; and the relation of the improvement of the water quality and the drainage of the flood discharge is coordinated, navigation channels are reserved in the riverway to meet the demands for shipping, so the movable type plant floating island chain is suitable for the purification of the water quality at the estuary of the lake and ecological restoration.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.