An electrolytic device and method for generating a disinfecting solution controlled by an electrical circuit. The electrical circuit preferably conditions the power received from the electrolytic device itself, or from a variety of power sources to measure and control the energy feeding the electrolytic cell chamber to produce an oxidant solution for disinfection. The electrical circuit can also have warning lights, volume indicators, timers, and other features to facilitate human interaction and ease of use. A multitude of separate devices can provide the power source, including but not limited to, a solar panel, a one-time use or rechargeable battery, a wall plug type of charger, a car battery, or any number of other devices that can provide power. Communications can also be electronic from a cell phone with a software application, and Bluetooth or other means of communication between to the electrolytic oxidant producing device and a controller and also controlled to or from a power source. The system can incorporate a water filter, to remove particulate material or microorganisms from the raw water source.

A liquid purification system is disclosed, comprising a reservoir to store a liquid and a purifier including a plurality of LED's configured to emit ultraviolet light into the reservoir and the liquid therein. A solar cell is positioned on a top of the purifier to provide power to the plurality of LED's. The solar cell may also provide power to an electronic device via a cable extending from the purifier.

A system for generating sterile water is provided, including: a liquid holding container having thereon a container outlet; a filtration device including therein a low-pressure-differential pathogen filtration portion, wherein the filtration device has a filtration inlet and a filtration outlet; and a gas tube; wherein the container outlet is connected to the filtration inlet; wherein the filtration inlet has a gas hole with one end connected to the gas hole and the other end having a buoy; wherein the sterile water is substantially pathogen-free.

The present application provides devices and methods of making and using these devices. The devices comprise a sintered porous polymeric material, a porous membrane attached to at least a portion of the sintered porous polymeric material, and optionally a housing which surrounds at least a portion of the sintered porous polymeric material. The devices can be used for sample collection, purification and transfer.

The present disclosure relates to water purification devices, and more particularly to a purification filter element and a water purification cup. The purification filter element includes a housing including a sterilization case, an activated carbon filtering section and an ion exchange resin filtering section from bottom to top. The sterilization case includes a first casing which is filled with brominated polystyrene hydantoin and a first filter screen. A gap is formed between the bottoms of the first casing and the housing. A flow limit hole is provided at the bottom of the housing. The water purification cup includes the purification filter element and a cup body. A water feed cup is detachably fastened in the cup body. A bottom of the water feed cup is connected to the housing of the purification filter element through a connection hole.

A method of filtering water contained in a squeezable bottle includes filling the squeezable water bottle with water; screwing a portable filtration apparatus onto the squeezable water bottle, the portable filtration apparatus includes a cap piece, the cap piece having a mouthpiece and a threaded portion, wherein the threaded portion is configured to screw onto the squeezable bottle; and a filter fluidly connected to the cap piece, wherein the filter comprises a plurality of hydrophilic hollow fibers and hydrophobic hollow fibers, the hydrophobic fibers are configured to allow air to flow into the squeezable bottle; flowing a filtrate out through the mouthpiece from the filter in response to a pressure differential between an inside portion of the squeezable bottle and an outside portion of the squeezable bottle.

The invention herein provides a bottle for carrying a fluid or a semifluid, the bottle including: a mouth, a top section, a body, a bottom section, and a base each located sequentially on a y- axis; the body of the bottle comprising a plurality of planar walls, each wall having the same height and width and located perpendicular to the plane of the base on an x-axis, and a cross section of the body being a polygon selected from: triangle, quadrilateral, pentagon, hexagon, heptagon, octagon, nonagon, decagon, and dodecagon; and a closure having a cross section of a circle or a polygon, and the closure reversibly attachable to the mouth to close the bottle and removable from the mouth to open the bottle. Further, the invention describes methods to obtain purified water using a filtration and purification device.

The present invention is directed to a water container. The water container comprises a fluid path defined by a rigid fluid reservoir, a filter and a water outlet having an open position and a closed position; a fluid inlet, and a pump coupled to the fluid inlet. The pump comprises a non-return valve and a piston shaft through which a piston head may be moved, the piston head being coupled to a piston rod slidably moveable through an orifice at a first end of the piston shaft, wherein the orifice is sealed about the piston rod such that, in use, operation of the pump pumps fluid from a fluid source in communication with the fluid inlet, through the non-return valve and into the fluid reservoir so as to pressurise the fluid reservoir such that, when the water outlet is in the open position, a pressure differential induces a flow of water along the fluid path through the filter to the water outlet. The piston shaft is substantially surrounded by the filter.

It is disclosed a system for accumulating rain water. The system may include: a water-proof foldable collector; a suspension unit; and at least one water accumulator. The suspension unit may be configured to be attached to one anchoring object at at least two attachment locations, wherein when the system is deployed, one of the at least two attachment locations is higher from ground than the at least another attachment location and suspend the collector at a position so as to collect rain water.

An apparatus for filtering and/or purifying water preferably comprises a canister having filtration chamber formed therein and a matrix mounted in the filtration chamber for filtering and/or purifying water that passes through it. Shock absorbers preferably are provided for guarding against damage to the matrix if the apparatus is dropped. Preferably, the apparatus is provided with an inlet port to the filtration chamber, a first outlet port from the filtration chamber, and a second outlet port from the filtration chamber. Water may be pumped into the filtration chamber from the inlet port to wash away dirt and debris that may build up in the filtration chamber and then exit the filtration chamber with the dirt and debris via the second outlet port when open, thereby accomplishing removal of dirt and debris from the filtration chamber without having to backwash the apparatus for filtering and/or purifying water.