A control valve (10) includes a valve body with a plurality of ports (A, B, C, D, E, F) and a plurality of annular flow passages (53, 55,57). A piston (34) which includes a plurality of annular flow passages and a longitudinal flow passage is selectively movable within a bore (32) within the valve body through operation of a valve controller (70). The valve controller is selectively operative to control the position of the piston so as to enable liquid flow through a plurality of flow paths. A master controller wirelessly communicates with a plurality of slave controllers, including the valve controller. The master controller is operative to control conditions of the valve and an associated liquid treatment tank.

A hand-holdable portable water purifying and dispensing unit is described comprising at least a housing, a purified water inlet, a further-purified water dispense outlet, a dispense operator, a reservoir, one or more water further-purification devices, and an internal water recirculation pump and pathway, said pathway including the reservoir and the one or more water further-purification devices. Optionally, the reservoir has a volume in the range 100 ml to 2000 ml, preferably in the range 200 ml and 1000 ml.

A water dispenser for improving water quality comprising: a transparent water container having an internal and an external side; a container cover; a loudspeaker within the cover playing positive sounds inside the container; a base divided by a partition with an upper and a lower part to hold the water container; a free internal magnet in water located inside the container configured to create a water vortex in the water; an external magnet located in the base upper part connected to an axis configured to mix the water and the free internal magnet; an axis for connecting the external magnet to an external motor in the base lower part; the external motor affixed to the partition and to the axis, configured to rotate the lower external magnet and to rotate the internal magnet to mix the water; and a water tap, through which a user pours water to a receptacle.

Liquid, air, or surface treatment/sterilization/disinfection using pulsed light to eliminate, reduce, degrade, render inert, or nullify physical, chemical, biological, microbiological, or non-microbiological contaminants is disclosed herein. The system also includes at least one power supply powering the light source of the reactor, an ionized wire wrapped outside the light source of the reactor, at least one digital multiplexer connected to the at least one power supply, and a controller to control the at least one digital multiplexer to power the light source to strobe the pulsed light at a predetermined fluence, a predetermined pulsed width, and a predetermined frequency or spectrum to eliminate, reduce, degrade, render inert, or nullify the physical, chemical, biological, microbiological, or non-microbiological contaminants in a liquid flow, air, or surface at a molecular level.

A portable and modular renewable energy microgeneration apparatus is disclosed that includes at least four modular units. The first modular unit includes a mixing tank and a chopper. The second modular unit includes a buffer tank, a liquor tank, and a pasteurization tank that pasteurizes waste that has been mixed with liquid from the liquor tank by the mixer, chopped into smaller sized components by the chopper, and pre-warmed by the buffer tank. The third modular unit includes a digestion tank that performs anaerobic digestion on pasteurized waste received from the pasteurization tank. And the fourth modular unit includes a gas storage tank that stores gas generated by the waste in at least one of the mixing tank, the chopper, the buffer tank, the liquor tank, the pasteurization tank, and the digestion tank. Each of the four modular units is both portable and modular.

An apparatus for water purifying and dehumidifying with an air purifying system purifies air and purifies condensate water produced by dehumidification such that the condensate water can be used as drinkable water, as a single product, whereby various functions are given to one product. Accordingly, there is an effect that the manufacturing cost of the product is reduced and expenses by customers are decreased, whereby it is possible to improve competitiveness of the product in terms of practical use.

A system and method for backwashing a sand filter in a wastewater treatment system. In one aspect, the invention can be a system for backwashing a sand filter comprising: a sand filter configured to remove solids from an untreated wastewater; a container storing chlorine fluidly coupled to the sand filter by a chlorine supply manifold; a flow control mechanism positioned on the chlorine supply manifold between the container and the sand filter, the flow control mechanism alterable between a first position whereby chlorine cannot flow from the container to the sand filter and a second position whereby chlorine flows from the container to the sand filter, the flow control mechanism being biased into the first position; and a processor operably coupled to the flow control mechanism and configured to automatically actuate the flow control mechanism into the second position upon detecting that the sand filter is being backwashed.

The invention relates to a water purification system and distillation unit. The water purification system (3) comprises an input section (31) for providing water (21), in particular tap water, to a distillation unit (1), and said distillation unit (1) for producing distilled water. Said distillation unit comprises an evaporation section (12) for evaporating said water (21) and producing steam (23), and a condensation section (14) for at least partly condensing said steam (23), producing distilled water. The system further comprises a first admixing unit (32), in particular a cartridge, which is arranged and configured in such a way that it is enabled for admixing compounds, in particular minerals, to said distilled water, producing enriched distilled water, and an output section (33) for dispensing said enriched distilled water. Said evaporation section (12) is provided by a heatable side (101) of a first Peltier effect device (10) and said condensation section (14) is provided by a coolable side (102) of said first Peltier effect device (10).

Systems and methods of filtering particulate matter from a fluid are provided. In one exemplary embodiment, a system for filtering particulate matter having suspended particles, organic contaminants, and microorganisms from a fluid comprises a main filter assembly having an activated carbon block disposed therein. The carbon block has distributed pores with a diameter of less than one micron. Further, the carbon block is operable to filter all of the particulate matter having a diameter or a non-spherical width of at least 0.45 microns from the fluid, and adsorb the particulate matter having a diameter or a non-spherical width of at least 0.003 microns from the fluid.

The present disclosure relates to a water purifier that ejects hot water and purified water, and the water purifier includes a housing forming a storage space, a filter provided inside the housing to purify water supplied from an external water supply source, a water ejection nozzle provided on the outside of the housing and configured to eject the water passing through the filter, a hot water module forming a heating flow path through which the purified water passing through the filter passes and configured to instantaneously heat the purified water passing through the heating flow path into hot water when hot water is ejected, a hot water flow path configured to guide the hot water passing through the hot water module toward the water ejection nozzle; and a controller configured to control the operation of the hot water module, in which, when purified water is ejected, the controller turns off the hot water module, and the purified water discharged from the hot water module is ejected to the water ejection nozzle through the hot water flow path.