A medicament preparation system includes a disposable cartridge with a flow path. Various sensors may be placed on the cartridge to measure qualities of the fluid flowing through the flow path. The sensors are placed in precise locations using various approaches that make manufacturing of the cartridge efficient and repeatable. A drain line that is susceptible to fouling may be preattached and various approaches are used to remove or reduce the fouling. An elastomeric contact can also be present in the medical preparation system and used in a conductivity measurement subsystem.

A magnetic strong base anion exchange resin with high mechanical strength and a preparation method thereof, belonging to the field of resin materials. The preparation method comprises steps of: adding a conventional strong base anion exchange resin to a mixture of trivalent iron salt and divalent iron salt, and then mixing the resin adsorbed with the iron salt with aqueous ammonia so that Fe.sub.3O.sub.4 nanoparticles are contained in the resin structure. Then, the resin containing Fe.sub.3O.sub.4 nanoparticles is added to alcoholic solution dissolved with silane coupling agent to form a dense SiO.sub.2 coating on the surface of the resin, so as to obtain magnetic strong base anion exchange resin with high mechanical strength.

A water treatment method to generate potable water and a fertilization or fertigation product is provided. The method comprises the steps of: passing a raw water stream through an anion exchange resin (14a, 14b) to generate a potable water output; regenerating the anion exchange resin (14a, 14b) using a weak potassium chloride solution to generate a product output comprising potassium sulphate, potassium bicarbonate, and preferably also potassium nitrate, suitable for use as or as a precursor to a liquid fertilization or fertigation product.

A medicament preparation system includes a disposable cartridge with a flow path. Various sensors may be placed on the cartridge to measure qualities of the fluid flowing through the flow path. The sensors are placed in precise locations using various approaches that make manufacturing of the cartridge efficient and repeatable. A drain line that is susceptible to fouling may be preattached and various approaches are used to remove or reduce the fouling. An elastomeric contact can also be present in the medical preparation system and used in a conductivity measurement subsystem.

The present disclosure relates to water purification compositions and the method of producing the same. Specifically, the present disclosure relates to a method of producing a water purification composition including providing a substrate having one or more functional groups that has hydroxyl, thiol, carboxyl, and/or amino group; depositing a solution of a metal salt on the substrate; depositing a solution of carboxylic acid compound on the substrate; forming a mixture wherein the metal cross-links the hydroxyl, thiol, carboxyl and/or amino groups on the surface of the substrate, and the carboxylic acid compound; and heating the mixture till the product is dry.

A system for removing long-chain and short-chain per- and polyfluoroalkyl substances (PFAS) from contaminated water using a regenerable anion exchange resin includes at least one first anion exchange resin vessel configured to receive a flow of water contaminated with long and short-chain PFAS compounds. The at least one first anion exchange resin vessel includes a first regenerable anion exchange resin therein having a high affinity for long-chain PFAS compounds configured such that a majority of the long-chain PFAS compounds sorb to the first regenerable anion exchange resin to remove a majority of the long-chain PFAS compounds from the contaminated water and produce a flow of water having a majority of the long-chain PFAS compounds removed. The system also includes at least one second anion exchange resin vessel configured to receive the flow of water having a majority of the long-chain PFAS compounds removed. The at least one second anion exchange resin vessel includes a second regenerable anion exchange resin therein having a high affinity for short-chain PFAS compounds and is configured such that a majority of the short-chain PFAS compounds sorb to the second anion exchange resin to remove a majority of the short-chain PFAS compounds from the contaminated water and produce a treated flow of water having a majority of the long and short-chain PFAS compounds removed.

A method for the oxidation of ethylene to form ethylene oxide which comprises treating an aqueous stream in a cycle water treatment unit containing an anion exchange resin to reduce the content of the impurities.

A system for removing PFSAs and PFCAs from contaminated water using regenerable anion exchange resins includes at least one first anion exchange resin vessel which receives a flow of water contaminated with PFSAs and PFCAs. A first anion exchange resin vessel includes a first regenerable anion exchange resin therein which removes a majority of the PFSAs from the flow of water contaminated with PFSAs and PFCAs and produce a flow of water having a majority of the PFSAs removed. A second anion exchange resin vessel receives the flow of water having a majority of the PFSAs removed. The at least one second anion exchange resin vessel includes a second regenerable anion exchange resin therein which removes a majority of the PFCAs from the flow of water having a majority of PFSAs removed and produce a flow of treated water having a majority of the PFSAs and PFCAs removed.

Provided is a novel Nanofiltration-DiaNanofiltration (NF-DiaNF) system and method for extracting divalent ions from saline water (e.g., seawater) to produce solutions rich in divalent ions (in particular Mg2+, Ca2+ and SO42−), while minimizing the concentrations of undesirable species (e.g., Cl−, Br−, B and Na+). The solutions may be added to water (e.g., desalinated, soft, drinking or irrigation water) to enrich the water with divalent ions, thereby improving its quality.

The structural principals and functions found in the present invention are applicable to the sector of purification, physical-chemical adjustments and packaging of water for human consumption. An object of the present invention is a system of purification, physical-chemical adjustment, adding mineral salts, and packaging of water for human consumption, comprising the following elements: a pump that captures water from the groundwater or other water source and stores it in a tank, a high pressure pump, a heat exchanger of inter plates exchangeable; a high pressure silica filter; a high pressure activated carbon filter; an ion changer; means for the addition of strong bases to adjust the hydrogen concentration; a precision filter; a dual reverse osmosis system; a hydrogen concentration sensor interconnected to the media for the addition of strong base for adjustment of hydrogen concentration; storage tank; a second high pressure pump; an ozone application system; means of adding mineral salts; means of adding magnesium salts; a storage tank; and a set of machines for filling the unique packaging in sachets, constructed with a mixture of LDPE and LDPE with linear structure of the monomers, to be used for filling only once, comprising weld lines; the contour of weld lines mainly simulating the shape of a bottle, showing a neck and a line, indicating to user the best portion of neck for performing the opening of the sachet that has external printings including useful information to users.