Systems and methods for watercraft and marine propulsions systems having marine environment enhancement capabilities are disclosed.

Systems and methods for watercraft and marine propulsions systems having marine environment enhancement capabilities are disclosed.

The present invention provides modular devices and systems for infusing gas into a liquid and methods of manufacture and use thereof. In accordance with an embodiment, a modular device for infusing gas into a liquid is provided. The modular device comprises a plurality of microporous hollow fibers, and a cap covering open ends of the microporous hollow fibers. The cap is configured to receive a gas into an opening and to deliver the gas into the open ends of the microporous hollow fibers. The cap is further configured to removably mount the modular device to a fixture. A system for infusing gas into a liquid may include one or more of the modular gas infusion devices configured to be removably mounted to a fixture such that the microporous hollow fibers are within a hollow cavity. The hollow cavity includes a first opening configured to receive a liquid and a second opening configured to discharge the liquid infused with a gas. Because the system is modular, it is economical to manufacture, scale to different application requirements and to maintain.

A multipurpose blower assembly for stimulating flows in underwater environments, which includes a lower assembly connecting to an upper assembly by a rotating shaft and a mount post for connecting the blower assembly to a supportive structure near a water body and supporting the lower assembly below and the upper assembly above the water body's surface. The lower assembly includes a lower bracket for supporting a blower motor, whereas the upper assembly includes a top plate for mounting an electrical gear motor having an output shaft connecting to the rotating shaft and a system controller having a microcontroller communicatively coupled to logic circuits for controlling operation of the electrical gear motor for rotation of the lower assembly relative to the upper assembly and a linear actuator to move upward and downward the lower bracket to effect angular positioning of the blower motor.

A multipurpose blower assembly for stimulating flows in underwater environments, which includes a lower assembly connecting to an upper assembly by a rotating shaft and a mount post for connecting the blower assembly to a supportive structure near a water body and supporting the lower assembly below and the upper assembly above the water body's surface. The lower assembly includes a lower bracket for supporting a blower motor, whereas the upper assembly includes a top plate for mounting an electrical gear motor having an output shaft connecting to the rotating shaft and a system controller having a microcontroller communicatively coupled to logic circuits for controlling operation of the electrical gear motor for rotation of the lower assembly relative to the upper assembly and a linear actuator to move upward and downward the lower bracket to effect angular positioning of the blower motor.

A system that moves water to a vessel on a water body includes a retractable tube with water intake that descends to a selectable depth in the water body, a pump that moves water from the selectable depth through the retractable tube, an anchor assembly carrying the pump or retractable tube to the selectable depth and back again, and an indicator of the depth of the anchor assembly, pump, or water intake of the retractable tube in the water body. The anchor assembly includes a pole, a cantilever beam, a telescoping pole, a pole driving system, or a combination thereof. The system may include a gas delivery system configured to introduce a gas into the system's water flow and a mixing chamber or tube that mixes water and gas. Variations of the system provide a subset of these components, and can be combined with third-party components.

A system that moves water to a vessel on a water body includes a retractable tube with water intake that descends to a selectable depth in the water body, a pump that moves water from the selectable depth through the retractable tube, an anchor assembly carrying the pump or retractable tube to the selectable depth and back again, and an indicator of the depth of the anchor assembly, pump, or water intake of the retractable tube in the water body. The anchor assembly includes a pole, a cantilever beam, a telescoping pole, a pole driving system, or a combination thereof. The system may include a gas delivery system configured to introduce a gas into the system's water flow and a mixing chamber or tube that mixes water and gas. Variations of the system provide a subset of these components, and can be combined with third-party components.

Provided is a liquid supply apparatus which is capable of directly taking in a liquid from a flow channel and appropriately mixing a gas into the liquid when generating-nanobubbles in the liquid using an ultrafine bubble generating apparatus. The liquid supply apparatus comprises a flow channel for a liquid supplied from a liquid supply source and an ultrafine bubble generating apparatus for generating nanobubbles in the liquid. The ultrafine bubble generating apparatus is provided with: a liquid ejector for ejecting the liquid taken in from the flow channel; a gas mixer for pressurizing and mixing a gas into the liquid ejected from the liquid ejector; and a nanobubble-generating nozzle for generating nanobubbles in the liquid by passing the liquid with intermixed gas therethrough. The pressure of the liquid in the flow channel flowing into the liquid ejector from the upstream-side of the liquid ejector is a positive pressure and, between the liquid ejector and the-nanobubble-generating nozzle, the gas mixer pressurizes and mixes the gas into the liquid, which is flowing in a pressurized state toward the nanobubble-generating nozzle.

Articles including a surface spreading agent, oilfield water storage systems that employ the articles, and methods of managing an oilfield water storage system are provided herein. In an embodiment, an article includes a film-forming composition and a densifying agent. The film-forming composition includes a surface spreading agent present in an amount of at least 5 weight %, based on the total weight of the film-forming composition. The densifying agent has a higher density than water and the surface spreading agent. The film-forming composition is packaged in an impervious material.

Systems and methods to control colonization, amplification and/or growth of waterborne aerobic heterotrophic bacteria within potable water plumbing of a premises are provided, the premises having potable water plumbing having at least one point of use within the premises, the potable water plumbing being adapted to receive a potable water supply from a municipal water source. The systems and methods to control colonization, amplification, and/or growth of waterborne aerobic heterotrophic bacteria within cooling towers and evaporative condensers, recirculates system water through a deoxygenation device to reduce dissolved oxygen levels and prevent bacterial respiration within the heat exchanger and pressurized lines.