Disclosed is a process for enriching silicate content in drinking water that includes separating raw water via reverse osmosis into a permeate comprising demineralised raw water and a retentate comprising mineral enriched raw water. The permeate is mixed with a water glass solution comprising sodium silicate and/or potassium silicate. An ion exchange process is used to reduce the concentration of sodium and/or potassium ions in at least part of the mixture. At least part of the retentate is supplied to the mixture after reducing the concentration of sodium and/or potassium ions to provide a silicate-enriched drinking water. Also disclosed is an apparatus for producing a drinking water enriched with silicate. The apparatus includes a reverse osmosis unit, a mixing unit, an ion exchanger, and a feed unit for feeding at least part of the retentate to the mixture after reducing the concentration of sodium and/or potassium ions.

The disclosure relates to the field of water environment treatment, and more particularly to a system and a method for restoring a water environment by a constructed wetland. The system for restoring the water environment by the constructed wetland includes: (1) a water distribution pipe for inputting a water body to be treated into the constructed wetland; (2) a magnetization reactor arranged around the water distribution pipe and used for applying a magnetic field perpendicular to the water flow direction to the water body flowing through the water distribution pipe in order to make the water body entering the constructed wetland through the water distribution pipe become magnetized water after magnetization treatment; (3) the constructed wetland; (4) a magnetization reactor arranged in the vertical direction of the constructed wetland and used for applying a magnetic field to the constructed wetland in the vertical direction; and (5) a water outlet pipe used for discharging the water body treated by the constructed wetland. The water body to be treated passes through the water distribution pipe, is treated by the magnetization reactor arranged around the water distribution pipe and then enters the constructed wetland. Meanwhile, the magnetization reactor arranged in the vertical direction of the constructed wetland is used for intermittently magnetizing the constructed wetland, so that the technical problems of high blocking possibility during operation and difficult rapid restoration of the constructed wetland can be effectively solved.

A device (1) for purification of water driven by gravity through a purification unit between an upper dirt water container (2) and a lower clean water tank (3). A backwash system may be integrated, the system comprising a receptacle (8) for accumulation of the backwash water to prevent consumption thereof by mistake.

A water treatment system includes: a first vessel having adsorbent materials that form a filtering bed; a second vessel in fluid communication with the first vessel and which includes adsorbent materials that form a filtering bed; an underdrain collection system having ring headers formed below the first and second vessel; a liquid control system in fluid communication with the first vessel, the second vessel, and the underdrain collection system; adsorbent material influent lines; water wash-down lines; raw water lines; and adsorbent material effluent lines, each adsorbent material effluent line having an inlet attached to a bottom of the first or second vessel and an outlet that extends out from the first or second vessel and which is positioned above the ring headers of the underdrain collection system.

A system is provided that utilizes electromagnetic energy for bacteria elimination from cooling systems, such as water cooling tower systems that are used to cool down a heat exchanger in oil industry and it can be also extended to be used in the bacteria removal associated to crude oil.

The present invention is a water purification system and method including a treatment tank with a water inlet, a chlorine source, and a heating element; at least one storage tank with at least one treated water outlet between the treatment tank and the storage tank(s) through which treated water passes therebetween, and a final water outlet(s) through which treated water leaves the system for the benefit of the end user. A power source powers all elements that require power, such as the heating element.

The wafer cleaning water supply system of the present invention has a wafer cleaning water production unit producing wafer cleaning water having a chemical agent, a replenishment pipe extending from the wafer cleaning water production unit, and a circulation-type cleaning water supply pipe connected to the replenishment pipe. The circulation-type cleaning water supply pipe feeds a liquid to a use point via a feeding pump and is provided with a supply-side flowmeter and a recovery-side flowmeter. The measurement results of the supply-side and recovery-side flowmeters and the water quality data obtained by a monitor of a sampling pipe for monitoring are transmitted to a control device, which controls the wafer cleaning water production unit. With such a configuration, the wafer cleaning water supply system involves a small amount of excess water, dissolved gas is less likely to be mixed with the wafer cleaning water, and space-saving is possible.

A water distribution device for simplified and partially automated maintenance of an artificial basin having a water inlet connected to a pump circulating water from the basin through a parallel configuration of pipes, connectors, servo-valves, a filter, a pump and a control unit. The control unit actuates the servo-valves to selectively pumping the water from the basin in a first flow direction through the filter in a filtering mode, from basin in a second flow direction through the filter in a filter washing mode, and from the basin through the piping without passing through the filter in a recirculation mode.

A system and method for treating reverse-osmosis (RO) concentrated water with high temporary hardness. The system includes a crystallization unit, a precipitation unit, a dewatering unit, and a programmable logic controller (PLC) system. The crystallization unit, precipitation unit and dewatering unit are connected in series, and the PLC system is configured to control pumps, valves, and displays in the crystallization unit, precipitation unit and dewatering unit. The crystallization unit includes a storage tank and a crystallization reactor communicated therewith. The crystallization reactor is provided with a pH meter, a liquid-level gauge, and a stirrer. A connection pipe between the crystallization reactor and the RO concentrated water is provided with an inlet pump and a inlet valve. A connection pipe between the crystallization reactor and the storage tank is provided with a feeding pump and a feeding valve.

An exemplary liquid treatment system includes at least one control valve in operative connection with a liquid treatment tank. The liquid treatment tank includes treatment material therein that is operative to treat the liquid that passes therethrough. The liquid treatment material is periodically regenerated to restore treatment function. At least one valve controller is operative to control the flow of liquid through the liquid treatment tank and to deliver treated liquid to liquid use devices. A further tank is operative to produce a saturated liquid solution of regeneration material that is usable to regenerate the liquid treatment material in the liquid treatment tank. The further tank includes at least one pressure sensor and at least one temperature sensor. The at least one pressure sensor and at least one temperature sensor are in operative connection with the at least one valve controller to determine that adequate saturated regeneration material is produced and delivered to the liquid treatment tank.