A filter cartridge assembly for an ice making appliance having a rectilinear filter cartridge with a plurality of partitions that are positioned within an internal chamber, form multiple sub-chambers, and create a non-linear pathway for the flow of water through the filter cartridge. Filter media positioned in the sub-chambers of the filter cartridge are configured to remove dissolved solids from water travelling through the filter cartridge and used by the appliance to create ice, including clear ice.

The present invention relates to a handheld electronic soap device (1), where pH neutral water is poured in the device through a water inlet (2) into an electrolytic cell (11). The pH neutral water is split into acidic ionized and alkaline ionized water by an electrolysis. The alkaline and acidic water can be used for cleaning and rinsing of skin or hair. More particularly, the alkaline water enables to clean skin or hair, whereas the acid water is important to maintain the acid environment on hairs and skin. According to the present invention a user can select between acidic or alkaline water to be poured out of the device through a water outlet (4).

A fluid sterilizing device includes a first reaction chamber, a second reaction chamber, a communication chamber and a light source. The first reaction chamber is connected to a fluid inlet. The second reaction chamber is connected to a fluid outlet. The communication chamber is connected the first reaction chamber with the second reaction chamber. The light source is configured to emit sterilization light to enter the first reaction chamber and the second reaction chamber. The fluid inlet allows a fluid to enter the first reaction chamber, the communication chamber allows the fluid to pass through and enter the second reaction chamber, and a flow velocity distribution of the fluid in the second reaction chamber is different from that of the fluid in the first reaction chamber.

The present invention relates to a handheld electronic soap device (1), where pH neutral water is poured in the device through a water inlet (2) into an electrolytic cell (11). The pH neutral water is split into acidic ionized and alkaline ionized water by an electrolysis. The alkaline and acidic water can be used for cleaning and rinsing of skin or hair. More particularly, the alkaline water enables to clean skin or hair, whereas the acid water is important to maintain the acid environment on hairs and skin. According to the present invention a user can select between acidic or alkaline water to be poured out of the device through a water outlet (4).

Process of sewage treatment in a continuous, linear and flexible channel, through a modified aerobic biological reactor system, or transformation of an existing anaerobic biological reactor into a modified aerobic biological reactor, coupled with a modified flexible flotation/decantation system, intended for the sewage treatment, to be carried out in a treatment plant, in a continuous, linear and flexible channel, using, as preliminary treatment, a garbage grid and a sandbox, to remove these debris, followed by a primary treatment, where the sewage receives the primary treatment inside an aerobic reactor—modified MBBR, or inside a pond aerated, facultative or anaerobic, transformed into an aerobic reactor—modified MBBR, or even inside an anaerobic reactor—UASB transformed into an aerobic reactor—modified MBBR, followed by a secondary treatment.

A method and apparatus for producing hydroxyl radicals in a fluid chamber in an electrochemical cell comprising at least one cathode, at least one anode and at least one source of photolyzing radiation. The method comprises causing an electrochemical cell to produce hydrogen peroxide in the fluid, and causing at least one photolyzing radiation source, such as UV-LED, to photolyze the hydrogen peroxide to produce hydroxyl radicals. The fluid treatment apparatus includes: a structure defining a fluid chamber; at least one cathode facing into the fluid chamber; at least one anode facing into the fluid chamber; and a photolyzing radiation source operable to emit photolyzing radiation into at least one electrochemical cell portion of the fluid chamber, which is suitable for producing hydrogen peroxide.

Described herein includes sample liquid purification apparatus, systems, and techniques of use. The purification apparatus generally can operate to reduce a temperature of a precursor liquid within a beverage machine or appliance. For example, a thermally conductive body can define a heat sink having a tortuous path for propagation of the precursor therethough, facilitating temperature reduction. The purification apparatus can further generally operate to sanitize or otherwise reduce a level of contaminants in the precursor liquid. For example, an energy source, such as a light emitting diode, can be arranged or integrated with the thermally conductive body to emit ultraviolet radiation toward the precursor liquid within the thermally conductive body.

An annular filter includes a first annulus wall and a second annulas wall being impermeable to fluid (liquid and gas), a first circular wall and a second circular wall mounted between the first annulas wall and second annulas wall wherein the first and second circular wall are permeable to fluid (liquid and gas), at least one dividing wall mounted between the first and second circular wall to divide an internal volume defined between the first and second annulas wall and the first and second circular wall into channels, bisecting walls between the first and second circular walls to change a direction of fluid flow from a first direction to a second direction first and second channels, turbulator walls mounted channel, wherein the turbulator walls cause turbulent fluid flow in the channels, and a filter media positioned in at least one of the channels.

Described are filter materials having polycarboxyl ligands, such as iminodiacetic acid, which are highly effective for filtering metals or metal ions from fluids. The filter materials can be particularly useful to filter various fluid compositions, such as those used for wet etching, removing photoresist, and cleaning steps in microelectronic device manufacturing.

The present invention relates to a method for treating an aqueous liquid effluent containing calcium and carbonate ions and containing precipitation-inhibiting products, said process comprising the following successive steps: a) providing an aqueous liquid effluent supersaturated with CaCO.sub.3 and containing precipitation-inhibiting products; b) having the effluent obtained in step a) pass into a reactor with high solid content with a solid content maintained between 20 and 800 g/l and integrated solid-liquid separation, at a pH comprised between 8 and 9.2 allowing in a single step precipitation in situ of the aragonite polymorph of calcium carbonate and removal of the precipitation-inhibiting products; c) recovering an aqueous liquid supernatant containing a suspended solids content of less than or equal to 0.1% by mass of the solid content in the reactor, advantageously a suspended solids content of less than 50 mg/l, the precipitation-inhibiting products being phosphonates.