Methods to improve water treatment for industrial uses are described. One method involves admixing source water, such as from a river or other flowing source or body of water, with a at least one water-soluble cationic polymer and at least one chloramine and a coagulant and/or flocculant to provide a treated water. The at least one water-soluble cationic polymer and at least one chloramine are present in an effective amount to improve water treatment efficiency, such as in allowing use of reduced amounts of coagulant and/or flocculant, and/or reduced suspended solids, turbidity, and/or color clarification.

A method of oxidizing a component of an aqueous medium is provided. The method includes adding an effective amount of an oxidizing composition to the aqueous medium. The oxidizing composition includes an ingredient, such as hydrogen peroxide, a percarbonate salt, a peroxy compound, a chlorite or alkali metal salt thereof, a chlorate or alkali metal salt thereof, or any combination thereof. The method also includes oxidizing the component. The component may be a metal, a mineral, a microbial metabolite, an organic molecule, or combination thereof. The method also includes modulating the application of the oxidizing composition based on a measured aqueous medium parameter.

Disclosed are oleyl propylenediamine-based compounds used in compositions and methods for inhibiting corrosion. The method comprises introducing into a fluid source a composition comprising one or more oleyl propylenediamine-based compounds comprising Formula I: ##STR00001## wherein Y.sub.1, Y.sub.2, and Y.sub.3 independently are hydrogen or a substituent of Formula (II): ##STR00002## wherein V is —O— or —NH—, W is optionally present and is a linear or branched C.sub.1-10 aliphatic group, X is —H, —NZ.sub.3.sup.+, —COOH, —SO.sub.3H, —OSO.sub.3H.sub.2, —PO.sub.3H, —OPO.sub.3H.sub.2, or a salt thereof, each Z independently is hydrogen or a linear or branched C.sub.1-20 aliphatic group optionally interrupted or substituted with one or more oxygen atoms, and R is hydrogen or methyl, provided that at least one of Y.sub.1, Y.sub.2, or Y.sub.3 is a substituent of Formula (II).

A liquid dosing system is disclosed and can include an inlet conduit and an outlet conduit. The inlet and outlet conduits can each be configured to fluidly communicate a heat exchanger of a water heater. The liquid dosing system can include one or more connector conduits configured to fluidly connect the inlet conduit and the outlet conduit to define a fluid circuit by at least the inlet conduit, the heat exchanger, the outlet conduit, and the one or more connector conduits. The liquid dosing system can include a pump configured to pump water through the fluid circuit, a reservoir configured to store an additive, and a dosing device configured to dispense the additive into the fluid circuit.

A water purifier for home use, irrigation systems used for crop cultivation or the pharmaceutical industry includes a water inlet for a water to be purified and a water outlet for a purified water. A water treatment chamber is fluidly connected to the water inlet and the water outlet. The water treatment chamber is confined by a chamber wall. The water purifier includes a high-voltage plasma unit for generating a cold plasma within the water treatment chamber. The plasma unit has a first electrode and a second electrode. The first electrode is arranged inside the water treatment chamber such that, during use of the water purifier, it is contacted by the water. The second electrode is disposed spaced apart from the first electrode and electrically insulated therefrom by a dielectric. The water purifier further relates to a water purification system.

The present disclosure relates to a biocide generating system for inhibiting bio-fouling within a water system of a watercraft. The water system is configured to draw water from a body of water on which the watercraft is supported. The biocide generating system includes an electrode arrangement adapted to be incorporated as part of an electrolytic cell through which the water of the water system flows.

A method of inhibiting scale in an industrial water system includes the steps of dosing the industrial water system with a water treatment polymer comprising at least 10 mol % of carboxylic acid monomer and a quaternized naphthalimide fluorescent monomer as disclosed herein, and then monitoring the fluorescence of the water system. The polymers are also useful for flocculation and coagulation in wastewater treatment.

A method and system for use therein for providing O.sub.2 and H.sub.2 gases directly to the soil proximal to the roots of plants, to harvested produce of plants, and to animals drinking supply via electrolysis is described. The method employs at least one electrolyzer disposed adjacent to, or inline with, the irrigation waterline of the plant grow operation or to the water supply waterline of the animals to facilitate the introduction of the gases to the soil or animals. A power source is used to provide the electrolytic conversion, and gases remain in a micro-bubbled form to flow through the waterline more easily to the plants where they are needed the most. A venturi may be used to channel the dissolved gases in the waterline from the electrolyzer in embodiments having an external unit. The preferred inline embodiment electrolyzes the water without need of a venturi to reintroduce the gases to the waterline.

Provided by the present invention is a faucet water softener comprising a water treatment device and a control valve, wherein the water treatment device defines a first communicating opening and a second communicating opening, the control valve comprises a valve body and a valve core, wherein the valve body defines a valve cavity, a first opening, a second opening, a third opening, a softened water inlet, a softened water outlet, a raw water outlet, a raw water inlet and a draining opening, wherein the valve core is arranged inside the valve cavity, wherein the first opening of the valve body is adapted for being communicated with the first communicating opening of the water treatment device, the softened water inlet of the valve body is adapted for being communicated with the second communicating opening of the water treatment device, and the raw water inlet of the valve body is adapted for being communicated with a raw water source.

A system is provided for treating and distributing water. The system includes a first container and an input conduit that supplies water (e.g., purified, unpurified, etc.) to the first container. The system also has a treatment delivery system that delivers a mineral composition into the first container. Further, the system uses a controller to selectively deliver the mineral composition in to the first container so that the mineral composition mixes with, and dissolves in the water delivered to the first container. This produces treated water having a programmed profile, which can be distributed to a destination (e.g., a coffee shop) via an output conduit.