A system for reducing total dissolved solids in wastewater can include a vertical reactor that can include a flexible sheet material, where the flexible sheet material can be configured to facilitate the growth and attachment of an algal biofilm. The vertical reactor can include a shaft, where the shaft can be associated with and can support the flexible sheet material, and a drive motor, where the drive motor can be coupled with the shaft such that the flexible sheet material can be selectively actuated. The system can include a fluid reservoir containing a portion of wastewater through which the flexible sheet material is configured to pass as well as a stressor operably configured to stimulate the algae to produce an extracellular polymeric substance. A method of reducing total dissolved solids in wastewater includes moving an algal biofilm through the wastewater and moving the algal biofilm through a gas.

A fluid decontamination apparatus is provided having a container body with a plurality of three-dimensional open structure (3DOS) substrates spaced about therein, wherein a contaminated fluid flowing through the container body will contact the 3DOS substrates. Nozzles can be inserted and secured within inlet apertures disposed about the container body, configured to inject the contaminated fluid with/without air to induce the occurrence of hydrodynamic cavitation. The substrates can be porous and permeable enabling the contaminated fluid to flow therethrough, wherein the fluid flow passageway through the pores extends the volume of contaminated fluid exposed to turbulent and cavitation inducing flow conditions. Moreover, the 3DOS substrates may be coated with one or more types of catalysts so as to initiate chemical reactions. As such, the extended exposure of the contaminated fluid to hydrodynamic cavitation forming conditions, along with the chemical reactions carried out on the porous surfaces, enable an increased number of toxic species and unwanted organic compounds to be destroyed and/or altered, thereby enhancing the decontamination of the flowing fluid.

A portable water treatment system using ozone is disclosed. The portable water treatment system includes a collapsible container for holding water; a removable cover on an open end of the collapsible container, the removable cover having an opening configured to receive the water into the collapsible container; a filter positioned at the opening of the removable cover and configured to filter the water entering the collapsible container; and a water treatment device configured to disinfect the water in the collapsible container using ozone, the water treatment device comprising a tortuous porous tube configured to distribute the ozone.

There is described a novel fluid treatment device that can induce Dean Vortices in the flowing fluid, and then induce a new set of Dean Vortices at an angle to those in the first set. Each subsequent curved section can induce vortices at an angle to those in the last curved section. This reactor has the effect of repeatedly twisting and splitting the fluid flow, resulting in targeted mixing similar to that of static mixers without the necessity of utilizing physical mixers. This is also an improvement over helical tubing configurations that generate only a single set of vortices and do not split and mix the flow.

Disclosed is a water purifier. The water purifier includes a water quality sensor configured to measure quality of water that is suppled from a water supply source, a first filter configured to filter by a first method, a second filter configured to filter by a second method, a flow path shifting valve configured to selectively supply water that is supplied from the water supply source to the first filter or the second filter, and a processor configured to control the flow path shifting valve based on a water quality value that is measured by the sensor.

The present invention relates to a portable water purification system by means of UV LEDs. Provided according to the present invention is a portable water purification system by means of UV LEDs comprising: a support member; a plurality of LEDs mounted on the surface of the support member; a solid filter provided with a through-path into which the support member is inserted; and a cover, attached to one end of the solid filter, for sealing the through-path of the solid filter.

A UV sterilization tube includes a hollow tube, a hydroelectric power module and a UV sterilization module. The hollow tube includes an inlet end and an outlet end communicating with each other. The hydroelectric power module is positioned in the hollow tube, and communicates with the inlet end and the outlet end of the hollow tube, wherein the hydroelectric power module generates electric power by a water flow. The UV sterilization module is positioned in the hollow tube, and is electrically connected to the hydroelectric power module. The UV sterilization module includes a UV source and a reflector, wherein the UV source has a light-emitting surface facing to the reflector. A sterilization channel, which communicates with the inlet end and the outlet end of the hollow tube, is between the UV source and the reflector.

The present invention relates to an ionized water producing device. The present invention provides an ionized water producing device that can be easily manufactured and assembled by a mold and can be connected to various locations such as a hose, a connection tube and the like so that water can pass between magnetic fields with opposite polarities, which are generated from two or more permanent magnets disposed in the ionized water producing device to produce a large amount of ionized water.

A UV reactor irradiates a flow of fluid with UV radiation. The reactor comprises: a fluid conduit defined by a heat conducting conduit body comprising one or more heat conducting walls for permitting a flow of fluid therethrough; a UV-LED operatively connected to a PCB and oriented for directing radiation into the fluid conduit. The PCB comprises a heat conducting substrate having a first surface. The conduit body is in thermal contact with the first surface of the heat conducting substrate. Heat is dissipated from the UV-LED via the heat conducting substrate, the thermal contact between the first surface of the heat conducting substrate and the heat conducting conduit body, and from the one or more heat conducting walls of the heat conducting conduit body to the fluid flowing through the fluid conduit.

A system for recovering fat, oil and grease (FOG) from wastewater has multiple annular flotation zones in a concentric configuration surrounding a central column to create progressively increasing surface areas for FOG and solid particles flotation, and thereby enhance FOG recovery and removal. Each flotation zone is equipped with an independent pressurized micro air and ozone bubbles distribution system. A controlled amount of ozone can be injected into the wastewater along with recirculated effluent and micro-size air bubbles. Upon the release of pressurized air-ozone-water mixture, micro-size bubbles are generated and distributed in each flotation zone to effectively float up FOG and solid particles in the wastewater stream.