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.

Provided are methods of removing perchlorate from water. The methods include contacting water suspected of containing perchlorate with a cationic material. The cationic material includes one or more cationic metal atoms connected by an atom or molecule into an extended structure, and a charge balancing anion. The contacting removes perchlorate (e.g., selectively), if present, from the water. Water treatment vessels, systems and facilities that find use in practicing the methods of the present disclosure are also provided.

Improvements in a lithium-ion extraction apparatus to extract lithium-ion from water and more specifically salt or brine water. The extraction of lithium-ion utilizing electromagnetic separation into a sorbent shortens the extraction time and minimizes environmental impact. The sorbent is typically a polymer that is in solution with the brine where direct contact with the brine water with the sorbent extracts lithium-ions. The fixed and magnetic field magnetic field increases the absorption in the sorbent by energizing the sorbent. The sorbent is in the form of porous beads that have selective lithium-ion affinity in a continuous solid-phase extraction process. The lithium-ion extraction apparatus includes fluid flow, agitation, pressure, and temperature control of the brine solution. The flow rate alters and controls the dwell time that the brine solution is in proximity to the electromagnets.

A water purification valve mechanism includes a body provided with a static valve plate having therein a first passage, a second passage, a third passage, a fourth closed passage, a fifth passage, a sixth closed passage and a seventh passage respectively and radially defined through a surface of the static valve plate and a dynamic valve plate rotatably provided on top of the static valve plate, wherein the second passage, the third passage, the fourth passage, the fifth passage, the sixth passage and the seventh passage are divergently defined around the first passage; and a driving device mounted inside the body to drive the dynamic valve plate to rotate.

A water softener valve mechanism includes a body provided with a first inlet, a first outlet and a first discharge. The body has a static valve plate provided with a first passage, a second passage, a third passage, a fourth passage, a fifth passage and a sixth passage and a second discharge and a dynamic plate rotatable relative to the static plate and having an elongated recess defined in a side face of the dynamic plate and a third inlet in communication with the first inlet of the body and to selectively communicate with the first passage, the second passage, the third passage, the fourth passage, the fifth passage and the sixth passage, and a driving device mounted inside the body to drive the dynamic valve plate to rotate.

A water softener valve mechanism includes a body provided with a main inlet, a main outlet and a discharge. The body has a static valve plate provided with a first passage, a second passage, a third passage, a fourth passage, a blind fifth passage, a sixth passage and a seventh passage and a dynamic plate rotatable relative to the static plate and having an elongated blind hole defined in a side face of the dynamic plate and an aligning hole to selectively communicate with the first passage, the second passage, the third passage and the fourth passage and a driving device mounted inside the body to drive the dynamic valve plate to rotate.

In one aspect, systems and methods for the efficient and cost-effective removal of bromide from wastewater streams are described herein. Briefly, a system for bromide removal comprises pretreatment apparatus operable for at least partial removal of background ionic species from the wastewater stream and/or dilution of the background ionic species in the wastewater stream. The system also comprises bromide capture apparatus operable for removal of bromide from the pretreated wastewater stream, wherein the system removes bromide from the wastewater stream at an efficiency of at least 80 percent. In some embodiments, bromide is recovered from the capture apparatus and reused in flue gas treatment applications.

A method includes receiving an ion concentration measurement from a sensor electrode measuring a fluid stream exiting a water conditioning system. A hardness metric is generated based on the ion concentration measurement. A regeneration signal is communicated to the water conditioning system based on the hardness metric. A system includes a sensor electrode to generate an ion concentration measurement in a fluid stream exiting a water conditioning system and a controller to generate a hardness metric based on the ion concentration measurement and communicate a regeneration signal to the water conditioning system based on the hardness metric.

This invention relates to a process for the recovery of cobalt ions and tungstic acid and/or its derivatives from aqueous solutions, such as in particular the spent catalytic waters deriving from processes for the oxidative cleavage of vegetable oils. In particular this invention relates to a process for the recovery of cobalt ions and tungstic acid and/or its derivatives which provides for the use of cation-exchange resins.

Methods and devices for use in removing biogenic amines from wine or other liquids are described. The methods and devices use a cation exchange resin and/or molecularly imprinted medium selective for amines to remove the amines from the wine or other liquid at the point of use.