This invention relates to a method for monitoring and controlling the relative concentration of bromide ion used in the cyclic process for enhanced sanitation and oxidation of aqueous systems at aquatic facilities.

The present invention relates to water treatment. In one example, there is provided a method of treating an aqueous system to inhibit growth of one or more micro-organisms therein and/or to reduce the number of live micro-organisms therein. The method includes adding treatment agents to said aqueous system, wherein said treatment agents include: (a) a phosphonium compound; and (b) a stabilised halogen containing composition.

The present invention provides an agent dispenser for use in introducing an agent into a fluid where the agent is miscible with such fluid. The agent dispenser comprises a hollow casing constructed of a material having a coefficient of cubical expansion that differs from the coefficient of cubical expansion of the fluid. At least one opening is provided in the hollow casing for permitting the flow of the fluid to and from the interior of the hollow casing. The opening is provided with a tube sealed in the opening, one end of the tube being contained within the hollow casing and the second end of the tube being exterior to the hollow casing for communication with the surrounding fluid. The second end of the tube is provided with a filter membrane having a defined pore size to prevent any debris which may be present in the fluid from blocking the second end or entering the hollow casing. The dispenser contains the agent and the agent is introduced into the fluid through fluid drawn into and expelled from said dispenser as a result of variations in the internal pressure of the dispenser resulting from thermal expansion and contraction of the dispenser and its contents caused by variations in the temperature of the fluid surrounding the dispenser.

The present disclosure relates to water purification devices, and more particularly to a purification filter element and a water purification cup. The purification filter element includes a housing including a sterilization case, an activated carbon filtering section and an ion exchange resin filtering section from bottom to top. The sterilization case includes a first casing which is filled with brominated polystyrene hydantoin and a first filter screen. A gap is formed between the bottoms of the first casing and the housing, A flow limit hole is provided at the bottom of the housing. The water purification cup includes the purification filter element and a cup body. A water feed cup is detachably fastened in the cup body. A bottom of the water feed cup is connected to the housing of the purification filter element through a connection hole.

A construction method and operational process for the implementation of a condominium and/or subdivision with the creation of artificial beaches for bathing in the format of isles and/or peninsulas and/or bays and/or lakes and/or the like is disclosed. More precisely, the construction method for the implementation of a condominium and/or lot subdivision, includes blocks (Q) of lots (L) in the format of an isle (I) and/or peninsula (P), allowing the implementation of watercourses (1) forming said isles (I) and/or peninsulas (P), that contains the lots (L) of the condominium, with the formation of artificial beaches (2) in the perimeter of said lots (L) composing said subdivision. The watercourses (1) are appropriate for contemplation and bathing by the condominium members, including the possibility of creating waves or ripples (18).

This invention relates to a method for monitoring and controlling the relative concentration of bromide ion used in the cyclic process for enhanced sanitation and oxidation of aqueous systems at aquatic facilities.

Implementations of this disclosure are directed to systems, devices and methods for monitoring parameters associated with a body of liquid. In one embodiment, a device includes a container configured to be partially submerged in a liquid and includes sensors disposed within a submerged portion of the container to measure parameters associated with the liquid. An electronic component disposed within an unsubmerged portion of the container transmits information related to the parameters based upon which one or more actions related to treatment of the body of liquid are suggested.

A water treatment system is provided with a nitrogen-containing organic compound oxidizing device that treats the first-stage treatment water after filtration and removal of cation ions. An oxidant-containing water stream and an inorganic bromide-containing water stream are respectively added into a pipeline that conducts the first-stage treatment water and then pass through an in-pipe mixer and a mixing unit, whereby to oxidize the nitrogen-containing organic compounds in the first-stage treatment water and then form the second-stage treatment water for output.

A cartridge for use in a water purification apparatus and a water purification method for maintaining a water quality supply are provided. The cartridge comprises an elongated tubular body having first and second ends comprising a fluid inlet and a fluid outlet, and an internal chamber extending between the first and second end. The first end includes an end cap having a first opening in fluid communication with the body. A disinfectant material is disposed in the internal chamber of the body. Filters are disposed in the elongated tubular body adjacent to the first opening and adjacent the second end of the elongated tubular body and are in fluid communication with the internal chamber and the fluid outlet. The second end of the elongated tubular body comprising an exterior surface having a tapered portion and a linear portion adjacent to the tapered portion.

The present invention relates to a ballast water treatment system and method. The ballast water treatment system comprises of at least one ballast tank, at least one mixing nozzle, a treatment unit, wherein the treatment unit comprises an electrochlorination module and a dechlorination module, a dosing module, wherein the dosing module is coupled to the treatment unit, and a control system. The method comprises introducing ballast water into at least one ballast tank disposed on the vessel, circulating at least a portion of the ballast water between the at least one ballast tank and a dosing module, generating a disinfectant via a treatment unit, wherein the treatment unit comprises an electrochlorination unit and a dechlorination module, and delivering the disinfectant from the treatment unit to the circulating ballast water at the dosing module.