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4 results about "Anoxic waters" patented technology

Anoxic waters are areas of sea water, fresh water, or groundwater that are depleted of dissolved oxygen and are a more severe condition of hypoxia. The US Geological Survey defines anoxic groundwater as those with dissolved oxygen concentration of less than 0.5 milligrams per litre. This condition is generally found in areas that have restricted water exchange.

An oxygenation device for aquaculture

ActiveCN224386530Usmooth rotationEffectively adjust power output speedPisciculture and aquariaDrive motorZoology
The utility model relates to aquatic products breeding equipment technical field discloses an oxygen -increasing equipment for aquaculture, including drive assembly, conical water leaf subassembly and float frame subassembly, spare carry the drive assembly of reduction gearbox and drive motor, reduction gearbox can effectively adjust power output speed, reduce the influence of load fluctuation to power transmission, ensure that conical water leaf subassembly rotates stably, reduce the oxygen -increasing efficiency fluctuation of power instability, prolong the service life of equipment. Conical water leaf subassembly adopts the design of conical bucket body and circumferential distribution blade, can effectively reduce the resistance, is not easy to reduce the speed because of load, simultaneously, conical bucket body can guide the water flow to form the spiral ascending movement track in the rotation process, expands water body agitating range, can promote the exchange of surface layer oxygen -rich water and deep layer oxygen -deficient water.
Owner:济宁市渔业发展和资源养护中心

Intermittent oxygenation in-situ water quality improvement synchronous algae control device and method thereof

The present application belongs to the technical field of water treatment, and relates to an intermittent oxygenation in-situ water quality improvement synchronous algae control device, comprising: a floating platform, a first water tank, a drainage assembly, an aeration assembly, an ultrasonic assembly and a control assembly. The present application intermittently starts the aeration assembly and the ultrasonic assembly through the control assembly, intermittently oxygenates through the aeration assembly, simultaneously sends the algal bloom on the water surface into the first water tank through the outer cylinder and the inner cylinder, and then utilizes the ultrasonic assembly to emit ultrasonic waves to destroy the air bag of the algal bloom, so that the algal bloom loses buoyancy and is discharged into the middle layer of the water body and can sink downward under the action of gravity. On the one hand, in-situ algae control can be performed, and on the other hand, water quality of the water body can be improved through oxygenation to avoid the formation of anoxic water body, so that in-situ water quality improvement and in-situ algae control are simultaneously performed. Not only the operation cost and energy consumption are reduced, but also the algae is reduced and the water quality of the water body is improved, so that the effect of improving the water quality of the lake and reservoir water body is improved, and the safety of taking water from the lake and reservoir is ensured.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Apparatus and method for water oxygenation and massage

An apparatus and method for oxygenating water in ponds, lakes, and seas while simultaneously providing a water massage to a user. The apparatus comprises a submersible frame (1) equipped with a plurality of nozzles (6) that deliver air bubbles or water jets, creating a massaging effect while oxygenating the surrounding water. The frame can be used independently, placed on the lake bottom, or attached to a watercraft or a jetty using a coupling element (16). This invention enables use in diverse environments, including oxygen-depleted waters and those unsuitable for traditional bathing due to low temperatures, parasites, or potentially dangerous aquatic life or flying stinging insects. The apparatus may further include an enclosure for protecting the user from undesirable aquatic life, cold water, or flying insects. The invention addresses the limitations of existing solutions by providing a versatile and convenient way to improve water quality and enhance recreational water activities.
Owner:ERIKSSON ROY ERIK

Device and method for controlling propagation risk of antibiotic resistance genes in deepwater reservoir

The invention discloses a deepwater reservoir antibiotic resistance gene transmission risk control device and method. The device comprises a solar heat collection-power generation floating island platform, a thermosyphon-gas stripping combined circulator and an intelligent monitoring and feedback system. The floating island platform supplies power through a photovoltaic panel and drives a solar heat exchanger, and the combined type circulator utilizes a plurality of vertical heat exchange pipelines and combines a thermosyphon effect (density difference is formed by solar heating) and an air stripping effect (bottom bubble plume oxygenation) to forcibly mix bottom layer anoxic water and surface layer oxygen-enriched water, crack thermal stratification and lift dissolved oxygen; the intelligent monitoring system monitors water quality and resistance gene abundance in real time through a multi-parameter sensor, and dynamically adjusts aeration rate and circulation intensity. According to the method, the triple targets of thermal stratification breaking, bottom layer oxygenation and ARGs diffusion inhibition are achieved, the whole process is driven by solar energy, the targeting property is high, the method is suitable for a regulation and storage type drinking water source reservoir, and a green prevention and control scheme is provided for globally preventing and controlling the ARGs pollution risk of the water body.
Owner:CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION