Perfluorinated and polyfluorinated compounds in an effluent stream are destroyed by means of electro-oxidation. Although electro-oxidation can be used to directly treat effluent, a more efficient use is to pre-concentrate applicable pollutants with filters or sorbents. Concentrated perfluorinated and polyfluorinated compounds are removed from the filter or sorbent with a regenerant solution and treated by electro-oxidation. A current density of 0.5 mA/cm.sup.2 or 1 mA/cm.sup.2 effectively reduces the level of perfluorinated contaminants within 1-3 hr. using a titanium electrode. This allows both the regenerant and filter or sorbent to be reused and greatly reduces the amount of material that must be treated as hazardous waste.

The invention relates to an apparatus for generating ozonated water. In particular, the apparatus is able to efficiently produce ozonated fluids in either continuous or batch operation modes, in a fashion that minimises electrolytic cells degradation, and/or that enhances the accuracy of ozone detection.

A beer line dispensing and cleaning system has a keg tapping head for connection to an outlet of a beer keg. A beer dispensing line is connected between the keg tapping head and a beer dispensing tap. An electrolytic ozone generator has a water inlet for connection to a water supply and an ozone water outlet for connection by an ozone water line to the beer dispensing line for delivery of ozone water through the beer dispensing line to sanitize the beer dispensing line.

A multistage greywater treatment system including at least one separation stage, at least one solid removal stage, and at least one disinfection stage. The at least one separation stage is configured to separate water from one or more water draining device into at least three outputs including a first intermediate greywater. The at least one solid removal stage is configured to receive the first intermediate greywater and dissolve solids from the first intermediate greywater to output a second intermediate greywater. The at least one disinfection stage is configured to receive the second intermediate greywater. The resultant greywater may be provided to at least one recycled water consuming device after passing through the at least one separation stage, at least one solid removal stage, and the at least one disinfection stage.

A multistage greywater treatment system including at least one separation stage, at least one solid removal stage, and at least one disinfection stage. The at least one separation stage is configured to separate water from one or more water draining device into at least three outputs including a first intermediate greywater. The at least one solid removal stage is configured to receive the first intermediate greywater and dissolve solids from the first intermediate greywater to output a second intermediate greywater. The at least one disinfection stage is configured to receive the second intermediate greywater. The resultant greywater may be provided to at least one recycled water consuming device after passing through the at least one separation stage, at least one solid removal stage, and the at least one disinfection stage.

The present invention relates to a carbon-nanotube/nano-adsorption-material-based electrode and an electrochemical valuable-metal recovery device using the same, and more particularly to an environmentally friendly carbon-nanotube/nano-adsorption-material-based electrode and an electrochemical valuable-metal recovery device using the same, in which valuable metals selectively adsorbed from e-waste wastewater are oxidized using, as an anode, an electrode including carbon nanotubes and a nano adsorption material capable of selectively adsorbing valuable metals and are simultaneously reduced at a cathode, thereby separating and recovering valuable metals.

An easily adaptable or do-it-yourself (DIY) installation water cleaning device on any existing spa or pool is provided herein. The cleaning device includes an electrolysis module equipped with a particular boron-doped diamond electrode on silicum substrate. The foregoing also relates to a method to clean water on spa or pools using a water cleaning device that includes particular boron-doped diamond electrode present on the elecrolysis module. The foregoing also relates to electrolyzed bathing water for use in the treatment of inflammatory diseases of the skin and for use for use in the treatment of wound healing of the skin.

An easily adaptable or do-it-yourself (DIY) installation water cleaning device on any existing spa or pool is provided herein. The cleaning device includes an electrolysis module equipped with a particular boron-doped diamond electrode on silicum substrate. The foregoing also relates to a method to clean water on spa or pools using a water cleaning device that includes particular boron-doped diamond electrode present on the elecrolysis module. The foregoing also relates to electrolyzed bathing water for use in the treatment of inflammatory diseases of the skin and for use for use in the treatment of wound healing of the skin.

A method of producing a porous carbon composite fibrous mats formed of a network of carbon fibers incorporated with porous carbon particles. The method includes electrospinning a polymer solution to form a porous layer of polymeric fibers and the polymeric fibers are doped with a precursor of conductive metal particles, wherein the polymer solution includes a polymer and the precursor of the conductive metal particles, electrospraying a metal organic framework suspension onto the porous layer of polymeric fibers, wherein the metal organic framework suspension includes metal organic framework particles, repeating the electrospinning and electrospraying in an alternating manner to form a porous network of polymeric fibers incorporated with the metal organic framework particles, and heating the porous network of polymeric fibers incorporated with the metal organic framework particles to form the porous carbon composite fibrous mats. The porous carbon composite fibrous mats and its applications thereof are also disclosed herein.

An apparatus for manufacturing hydrogen-containing water is disclosed. In one aspect, the apparatus includes a container part formed with a upper space and a lower space positioned vertically from each other around a connecting passage therein. The apparatus also includes an ion exchange membrane configured to close the connecting passage and an electrolytic part comprising a cathode disposed on the upper space and a cathode an anode disposed on the lower space. The apparatus further includes a handle part configured to couple to the container part and to provide a supply passage for water to be supplied to the lower space and a discharge passage to discharge oxygen and ozone generated from the lower space.