An apparatus and system for managing the level of dissolved gases in water for aquatic life that provides sufficient water with sufficient oxygen saturation, without introducing excessive amounts of bubbles, and that can adequately degas or strip harmful dissolve gases from the water. The apparatus can generally comprise a storage compartment, a filter compartment, and a pump compartment. The filter compartment can be coupled with the storage compartment and comprise a filter element. The pump compartment can be coupled with the storage compartment and comprise a venturi air intake port, a degassing vent, a pump filter element, and a pump assembly. The pump assembly can comprise a venturi nozzle coupled with the venturi air intake port and a flow pump in fluid communication with a flow pump intake port. The pump filter element can at least partially encircle the flow pump intake port.

The invention discloses a river course treatment integration system comprising an information collection module, a treatment module, an audio-visual module and a calculation processing module; the information collection module is used for collecting pollution source information on the periphery of a river course, detecting water quality of the river course, and transferring the information to the calculation processing module through a wireless radio communication signal sending module; the treatment module is used for controlling the pollution source of the river course, and carrying out ecological restoration. The invention collects the pollution source information on the periphery of the river course and detects the water quality of the river course by the information collection module, treats the river course by the treatment module, monitors the pollution source information collected by the information collection module using a source monitoring module, and to some extent, can fundamentally treat the river course, and can thoroughly solve the eutrophication development of a water body using a planting unit, a breeding unit, an aeration device and a decentralized sewage treatment station.

A device (1) for dissolving a gas (G) in water (W) is provided, and includes a housing (100) configured to be submerged into the water (W) with the housing (100) having at least one water inlet (101), a gas inlet (102) and at least one water outlet (103) for discharging gas enriched water out of the housing (100), a pump (5) in fluid communication with the at least one water inlet (10) for sucking water (W) from a surrounding of the housing (100), the pump configured to generate a main water stream (S′), and means for injecting the gas (G) supplied via the gas inlet (102) into the main water stream (S′). The device (1) includes a probe (6) configured to measure a concentration of the gas dissolved in water, and the probe (6) is arranged in the housing (100) of the device (1).

A device (1) for dissolving a gas (G) in water (W) is provided, and includes a housing (100) configured to be submerged into the water (W) with the housing (100) having at least one water inlet (101), a gas inlet (102) and at least one water outlet (103) for discharging gas enriched water out of the housing (100), a pump (5) in fluid communication with the at least one water inlet (10) for sucking water (W) from a surrounding of the housing (100), the pump configured to generate a main water stream (S′), and means for injecting the gas (G) supplied via the gas inlet (102) into the main water stream (S′). The device (1) includes a probe (6) configured to measure a concentration of the gas dissolved in water, and the probe (6) is arranged in the housing (100) of the device (1).

Provided are: a microbubble generation device utilizing a swirling flow generated by injecting of a pressurized liquid; a microbubble generation method capable of generating a large amount of bubbles; and a shower apparatus and an oil-water separation apparatus having said microbubble generation device. This microbubble generation device comprises: a cylindrical or conical cylinder with a gas-liquid swirling chamber therein; a gas-liquid discharge inlet provided on one end of the cylindrical or conical cylinder; and a liquid supply cylinder and a gas supply cylinder for introducing a liquid and a gas into the gas-liquid swirling chamber. For the gas-liquid discharge outlet, a plurality of small cylindrical through-holes or a plurality of small recessed parts with a circular cross-section and at least a semicircular circumferential length, are respectively provided in the wall of a closed end at one end of the cylindrical or conical cylinder or on the circumferential surface of the inner wall of an open end at one end thereof.

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.

A method for treating wastewater is provided. The method uses a cationic mineral composition, which is a cationic clay composition, to assist with flocculating out biomass suspended within the wastewater. The cationic clay composition may be mixed with the wastewater undergoing a wastewater treatment process at numerous injection sites. Mixing the cationic clay composition with wastewater at these injection sites may provide different benefits, wherein these benefits are dependent on the point at which the wastewater is along the wastewater treatment process. The cationic clay composition may be added at one injection site or multiple injection sites, depending on a determination made by the operator.

A method for treating wastewater is provided. The method uses a cationic mineral composition, which is a cationic clay composition, to assist with flocculating out biomass suspended within the wastewater. The cationic clay composition may be mixed with the wastewater undergoing a wastewater treatment process at numerous injection sites. Mixing the cationic clay composition with wastewater at these injection sites may provide different benefits, wherein these benefits are dependent on the point at which the wastewater is along the wastewater treatment process. The cationic clay composition may be added at one injection site or multiple injection sites, depending on a determination made by the operator.

A cationic mineral composition for treating wastewater is provided. The composition assists with flocculating out biomass suspended within the wastewater. The cationic clay composition may be mixed with the wastewater undergoing a wastewater treatment process at numerous injection sites. Mixing the cationic clay composition with wastewater at these injection sites may provide different benefits, wherein these benefits are dependent on the point at which the wastewater is along the wastewater treatment process. The cationic clay composition may be added at one injection site or multiple injection sites, depending on a determination made by the operator.

The invention provides a method for preparing strontium-rich mineral water from distilled water obtained in the salt production process from brine, which comprises the following steps: carrying out aeration pretreatment on the salt-making distilled water to obtain pretreated distilled water, and further performing sand filtration, ion exchange, activated carbon, membrane filtration and sterilization and disinfection treatment on the pretreated distilled water to obtain the drinking strontium-rich mineral water with the strontium element content of more than 0.4 mg/L. The method provided by the invention prepares distilled water obtained in a brine evaporation salt making process into drinkable strontium-rich mineral water, which not only realizes comprehensive utilization of resources, but also realizes retention and enrichment of strontium element in the distilled water and effective adjustment of strontium element content, obtaining a high-end product of the strontium-rich mineral water and obviously improving economy of the process.