A method of removing metal ions is provided, which includes contacting a metal removal composition with a solution containing metal ions for removing the metal ions from the solution, wherein the metal removal composition includes a polymer with a chemical structure of: ##STR00001##
wherein Q is a quinoline-based group, n=90˜450, o=10˜50, and p=0˜20. The metal removal composition has a type of fiber or film. In addition, the metal removal composition has a porosity of 60% to 90%.

A method of removing metal ions is provided, which includes contacting a metal removal composition with a solution containing metal ions for removing the metal ions from the solution, wherein the metal removal composition includes a polymer with a chemical structure of: ##STR00001##
wherein Q is a quinoline-based group, n=90˜450, o=10˜50, and p=0˜20. The metal removal composition has a type of fiber or film. In addition, the metal removal composition has a porosity of 60% to 90%.

A resistivity regulating apparatus includes: a gas dissolving device that causes a regulating gas to dissolve in a liquid targeted for resistivity regulation to generate a treated liquid in which the regulating gas is dissolved in the liquid, the regulating gas being used to regulate a resistivity of the liquid; and a buffer tank to which the treated liquid discharged from the gas dissolving device is fed.

An apparatus for the mineralization of drinking water has a housing with an inlet and an outlet, a filter positioned in the housing, a container receptacle assembly affixed to or formed on the housing, a pump cooperative with the container receptacle assembly, and a manifold connected to an outlet of the pump and to an outlet of the filter. The filter is connected to the inlet of the housing and adapted to filter contaminants. The container receptacle assemblies adapted to connect with a bottle containing a mineral or supplement therein. The pump is adapted to pass the mineral or supplement in a measured amount from the bottle. The manifold is adapted to mix the mineral or supplement with the filtered water so as to discharge a mineralized drinking water through the outlet.

An apparatus for the mineralization of drinking water has a housing with an inlet and an outlet, a filter positioned in the housing, a container receptacle assembly affixed to or formed on the housing, a pump cooperative with the container receptacle assembly, and a manifold connected to an outlet of the pump and to an outlet of the filter. The filter is connected to the inlet of the housing and adapted to filter contaminants. The container receptacle assemblies adapted to connect with a bottle containing a mineral or supplement therein. The pump is adapted to pass the mineral or supplement in a measured amount from the bottle. The manifold is adapted to mix the mineral or supplement with the filtered water so as to discharge a mineralized drinking water through the outlet.

A mineral-containing composition is added to a carbonated water or a carbonated drink to improve the foam quality thereof. Provided is a mineral-containing composition containing potassium ions the concentration of which is the highest of the metal ions present in the mineral-containing composition.

A device for production and use of a disinfectant. The device may be used to disinfect materials or objects exposed to viruses and/or bacteria. In particular, the device is capable of converting at least one first reagent such as an alcohol and at least one second reagent including an oxidant into an active disinfectant agent. A catalytic system is incorporated into the reaction vessel to produce the active disinfectant as needed for the disinfection process.

Produced is an extraction solvent for coffee or tea. Provided is a mineral-containing composition containing potassium ions the concentration of which is the highest of the metal ions present in the mineral-containing composition.

Produced is an extraction solvent for coffee or tea. Provided is a mineral-containing composition containing potassium ions the concentration of which is the highest of the metal ions present in the mineral-containing composition.

A water quality management system for a water installation containing water. In some embodiments, the system has a water quality measurement module adapted to monitor the water quality of the water in the water installation and to send water quality information to a controller; and a chemical dispensing module adapted to dispense at least one chemical directly into the water installation in response to signals from the controller based on a water quality measurement by the water quality measurement module, the chemical dispensing module comprising a reservoir adapted to contain the at least one chemical, a movable dispenser adapted and configured to advance a fixed quantity of the chemical out of the reservoir and into the water of the water installation in response to signals from the controller.