The invention is directed to point of use devices and appliances for alkalizing and/or adjusting the oxidation/reduction potential of water that is to be ingested. The devices comprise straws, carafes, countertop units, water bottle units and any other devices that will treat the water at the point of use. The water will flow through the point of use devices or appliances longitudinally or radially. The point of use device or appliance will contain an alkalizing formulation that will increase the pH of the water to preferably above about 8 and the oxidation/reduction potential to about −100 and −700. The amount of water that can be treated will depend on the amount of the oxidation/reduction potential and alkalizing formulations used and the size and capacity of the device or appliance for the alkalizing and oxidation/reduction potential formulations. The alkalizing formulation will supply to the water being treated one or more of potassium, calcium and magnesium ions. The water prior to contacting the treatment compound can be filtered through a purification formulation to remove particulates, heavy metals and various organic compounds. The purification formulation can be a form of activated carbon.

Systems and methods for passively dosing fluid with a consumable additive in a controlled and measured fashion. A capsule containing the additive is placed in a fluid reservoir and passively doses static water in the reservoir over time. Instead of directly exposing the additive to the dispensing system's fluid, fluid within the capsule's internal volume becomes saturated with dissolved additive and then diffuses to the dispensing system's fluid through one or more openings. The one or more openings are sized so the that the diffusion occurs at a predetermined rate, and are positioned on the capsule to prevent an undesirable fluid exchange which extends the life of the additive and maintains a constant diffusion rate. The size of the cartridge can be selected to control the volume of fluid that is passively dosed within the reservoir, thereby controlling an overall concentration of additive in the total volume dispensed.

The apparatus for filtering and dispensing drinking water is disclosed which includes a container having an interior space with a dividing wall defining a first chamber for receiving unfiltered water and a second chamber for storing filtered drinking water, wherein a passage is formed through the interior wall adjacent a bottom surface of the container to provide fluid communication between the first and second chambers, and wherein at least one multi-layered filter pack is disposed across the passage to filter water flowing from the first chamber to the second chamber under force of gravity.

An expandable water filtering pitcher having a pitcher with a top portion, a base portion and an inner wall surface defining an internal volume of the pitcher, a spout at the top portion at a pitcher opening, a handle attached to an exterior of the pitcher, a filter adapter mounted within the pitcher top portion. The filter adapter is within a reservoir comprising an opening therethrough from the top portion to the base portion of the pitcher and a reservoir sleeve movably coupled to the reservoir and top portion, at least one of the reservoir and the reservoir sleeve moveable in relation to the other between a retracted position defining a first reservoir volume within the reservoir and reservoir sleeve, and an expanded position defining a second reservoir volume within the reservoir and reservoir sleeve at least 40% larger than the first reservoir volume.

A liquid treatment device includes a base with a power source, a UV-LED module for providing UV-B or UV-C light to liquid, an LED for providing visible light, and a processor for selectively powering the UV-LED module and the LED, and having a UV transmissive material above the UV-LED module for allowing the UV-B or UV-C band light from the UV-LED module to be transmitted from the base housing, and a liquid storage housing removably coupled to the base housing with a storage portion configured to hold liquid and having a bottom portion comprising a UV transmissive material for allowing the UV-B or UV-C band light from the UV-LED module to be transmitted into the liquid, and an output coupled for restricting outflow of the liquid from the storage portion.

An apparatus is configured to introduce ozone into water. The apparatus includes an ozone source that is configured to provide ozone. The apparatus further includes an air pump that is operatively coupled with the ozone source to provide an air stream mixed with the ozone at a pressure greater than atmospheric pressure. The apparatus further includes an ozone distributor pneumatically coupled with the air pump to introduce the ozone-mixed air stream into the water. The ozone distributor includes a porous tube set in a tortuous configuration.

Provided is a granular filtration media comprising a mixture of granular filtration media and less than 5% of nanofibers based on the dry weight, method of making the same and uses of the same for removing contaminants from water, including metals, heavy metals, synthetic or natural organic matters, colloidal or suspended particles to improve the chemical safety and purity of water for the purpose of water purification, specifically, one embodiment of the present invention disclosed is use of the granular filtration media to remove particulate lead from high pH water.

A water treatment device (100) can include a chamber (104) having an inlet (108) to receive water contaminated with pathogens and an outlet (110) to dispense treated water. The water treatment device (100) can also include a catalytic element (130) disposed in the chamber (104) to deactivate the pathogens in the water via at least one of electrocatalytic activity and photocatalytic activity. The chamber (104) and/or the catalytic element (130) can be configured to mix the water as the water flows from the inlet (108) to the outlet (110) thereby exposing the pathogens in the water to the catalytic element (130).

A fluid storage and dispensing assembly includes a fluid chamber having at least one side wall extending between an upper end and a closed lower end thereby defining a reservoir. A lid connectable proximate the chamber upper end has a first surface and an opposite second surface and defines a fluid inlet connecting the first and second surfaces. The fluid inlet defines an axis and includes a first fluid sealing member. A fluid filtration unit having a first end configured for removable fluid tight attachment to the lid at the second surface and a second end is provided with a filtration channel defined therebetween. The second end defines a filter outlet, and a unit of filter media is positioned between the first and second ends. The filtration outlet is in fluid communication with the fluid inlet when the first end is attached to the lid unit, wherein the first sealing member is configured for releasable attachment in a fluid tight seal with a head of a pressurized fluid source when engaged such that the pressure from the fluid source forces fluid from the source through the filter media and from the filtration outlet into the reservoir.

In one example, a adapter element is provide that is suitable for use with a water filter cartridge. The adapter element includes a support structure, and a lower contact portion that is connected to the support structure and releasably engageable with an upper portion of a water filter cartridge. In addition, an upper contact portion is connected to the support structure and arranged for contact with a portion of a pitcher when the adapter element is disposed in the pitcher.