Provided is an adsorbent for removal of iodide ions and iodate ions, which exhibits excellent adsorption performance of iodide ions and iodate ions. An adsorbent according to the present invention comprises cerium(IV) hydroxide and a poorly soluble silver compound. It is preferable that the content of cerium(IV) hydroxide is 50% by mass or more and 99% by mass or less, and the content of the poorly soluble silver compound is 1% by mass or more and 50% by mass or less. It is also preferable that the poorly soluble silver compound is at least one selected from silver zeolite, silver phosphate, silver chloride, and silver carbonate.

A hydrogen-enriched water generator and dispenser includes a main casing, a hydrogen water generator supported in the main casing, and a water tank. The hydrogen water generator includes a magnetic field generator and an electrode arrangement supported in the main casing. The water tank is adapted for storing a predetermined amount of regular water. The magnetic field generator is arranged to deliver electromagnetic wave having ultra-long wavelength to the regular water stored in the water tank upon electrolyzing and ionizing by the electrode arrangement, so that the regular water is electrolyzed and ionized to contain a predetermined amount of hydrogen ions for direct consumption.

Disclosed herein are a method for analyzing heavy metal removal efficiency using phase difference analysis and an apparatus using the method. The method for analyzing heavy metal removal efficiency using phase difference analysis includes applying a magnetic field to a magnetite onto which a heavy metal is adsorbed, based on a first solenoid coil and a second solenoid coil that have an identical winding direction, applying a high-frequency signal to the magnetite, based on a third solenoid coil having a winding direction that differs from that of the first solenoid coil and the second solenoid coil, detecting a high-frequency signal transformed by the magnetite, and calculating a phase difference between a previously detected default high-frequency signal and the transformed high-frequency signal, and analyzing an efficiency of heavy metal removal by the magnetite by measuring a concentration of the heavy metal based on the phase difference.

A composite filtration material is provided as well as a method for preparing the same. A filter is also provided that is fabricated with the presently disclosed composite filtration material. In various aspects, the provided composite filtration material may include activated carbon doped with silver and/or iron oxide. A one-step thermal decomposition process is provided that may be employed to prepare the provided composite filtration materials. The one-step thermal decomposition process may include dissolving one or more precursors in water, spraying the dissolved one or more precursors onto activated carbon, and heating the activated carbon saturated with the one or more precursors for a predetermined amount of time. The inventors have found that the provided composite filtration materials are more effective (e.g., higher removal of pollutants) and have a longer service life as compared to typical activated carbon filtration materials.

The invention generally relates to the filed of providing a liquid for human consumption. In particular, the invention relates to a system for channeling a liquid such as particularly an aqueous liquid such as water in a circuit and for controlling the contamination of the circulating liquid with microorganisms, as well as to a corresponding method using the same. Furthermore, the invention relates to a method for the effective energy saving in the course of providing a heated liquid for human consumption while controlling the limit values recommended, admissible or acceptable for microorganisms, in which the set temperature of a heating device (8) is adjusted to a value below 60° C., preferably to a value between 40 and 55° C., most preferably to a value between 43 and 48° C.

A method for mitigating microbe buildup within a potable water supply system including: cleaning of the water supply system; acquiring data including at least water conditions at multiple points within the potable water supply system; a control system adjusting local water conditions within the potable water supply system; a bacteria monitor assessing water within the potable water system to determine at least levels of bacteria within the potable water system; and applying an antimicrobial condition to water within the potable water system.

Disclosed herein is a fungicide, including a porous carbon material and a silver member adhered to the porous carbon material, wherein a value of a specific surface area based on a nitrogen BET, namely Brunauer, Emmett, and Teller method is equal to or larger than 10 m.sup.2/g, and a volume of a fine pore based on a BJH, namely Barrett, Joyner, and Halenda method and an MP, namely Micro Pore method is equal to or larger than 0.1 cm.sup.3/g.

A method of sorbing a PFAS compound from a contaminated sample can include admixing a modified clay sorbent with the sample. The modified clay can include a clay intercalated with a blend of mono-quatemary amine compound and multifunctional-quatemary amine compound having a functionality of 3 or more.

A filter for a liquid purifier, comprising: a filter housing having an inlet to receive water and an outlet to discharge the water; and a filter module provided in the filter housing, and configured to purify water introduced through the inlet, and to provide the purified water to the outlet, wherein the filter module includes a carbon block having a hollow tube shape by mixing activated carbon, a binder, ferric hydroxide, and titanium oxide, and the binder is mixed at a ratio of 13% to 23% by weight.

In order to solve the problem in the existing conventional water treatment process of low removal efficiency of heavy metal in water, especially lower efficiency for simultaneous removal of heavy metal pollutants during coexisting, a method is provided for removing heavy metal pollutants in water with divalent manganese strengthened ferrate: preparing a ferrate mother liquor having the concentration of 20-10,000 mmol/L; preparing a divalent manganese salt mother liquor having the concentration of 30-10,000 mmol/L; adding the divalent manganese salt mother liquor into water of the heavy metal pollutants; then adding the ferrate mother liquor, and reacting; and then adding a flocculant and precipitating, so that the removal rate of arsenate, chromium, thallium, antimony, chromium and molybdate in water is 90% or more, and the removal rate of heavy metal such as lead and cadmium is 85% or more.