A method and system for treating oilfield produced water is disclosed. The method includes passing oilfield produced water through a chain of filters, first filter configured to filter particles of a size larger than 10 m from the water, a second filter configured to filter remaining particles of a size larger than 2 m from the water and a third filter configured to filter remaining particles of a size larger than 0.5 m from the water and automatically cleaning at least one of the filters.

A filter screen brush apparatus includes a circular connecting portion that has an opening substantially centered on a longitudinal axis of the apparatus. At least one extension arm has one end coupled to the circular connecting portion and extends from the circular connecting portion along the longitudinal axis. The at least one extension arm includes an inner surface that faces the longitudinal axis. At least one brush is coupled to the inner surface of the at least one extension arm.

The present disclosure discloses a circulating water pump for a data center computer room, including a circulating water pump main body. A water inlet pipe and a water outlet pipe are respectively arranged on a left side and a right side below the circulating water pump main body. An end of the water inlet pipe is fixedly connected to a connecting pipe, on which there is provided with a cleaning pipe component I and a cleaning pipe component II having a same structure, and an electric butterfly valve is fixedly installed at an end of the cleaning pipe component I and of the cleaning pipe component II away from the water inlet pipe.

Provided by the present invention is a faucet water purifier, a control valve and a disk assembly for a faucet water purifier, which comprises a control valve and a filtering device, wherein the filtering device defines a first communicating opening, a second communicating opening and a third 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 fourth opening, a fifth opening, a raw water inlet and a draining opening, wherein the valve core is disposed inside the valve cavity, wherein the first opening is communicated with the first communicating opening of the filtering device, the second opening is communicated with the second communicating opening of the filtering device, the fourth opening is communicated with the third communicating opening of the filtering device, the third opening is communicated with a water outlet of the filtering device, and the raw water inlet of the valve body is adapted to be communicated with a raw water source.

An automatic self-cleaning filter that is driven by a submersible actuator and is configured to clean or filter one or more substances from a liquid.

Provided by the present invention is a water purifier comprising a control valve for controlling the flow of water and a filter device, wherein the filter comprises an outer casing, a primary filter and a secondary filter, wherein the outer casing defines a first accommodation cavity, wherein the primary filter and the secondary filter are disposed inside the first accommodation cavity of the outer casing, and the outer casing and the primary filter define a raw water channel therebetween, the primary filter and the secondary filter define a purified water channel therebetween, the secondary filter has a purified water outlet, wherein the filter device has a first communicating opening, a second communicating opening and a third 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 fourth opening, a fifth opening, a raw water inlet and a draining opening.

An apparatus for wastewater filtration having a barrel, a basket and a screw on a shaft rotating therein for pushing solid in a distinct output. A removable cartridge comprises a cover for the barrel, the cartridge comprising a pre-sealed shaft connector which releasably connects to at least the upper shaft portion or the lower shaft portion to form the shaft. The screw comprises a brush on an outer rim thereof, the brush having radially outwardly oriented bristles that scrape an inner surface of the basket. The screw comprises a winged wiper at a bottom thereof for sweeping a bottom surface of the barrel, and the solid-material output is provided at the bottom surface of the barrel and is shaped as a rectangular opening which is offset from a central axis of the screw. Solid removal efficiency and maintenance are thereby improved.

A sewage purification treatment apparatus capable of being assembled in a prefabricated way includes a treatment table, an aeration tank, a filter tank, a water pump, a dosing assembly, a filtering assembly, a cleaning assembly and a washing assembly, the aeration tank and the filter tank are disposed at the top of the treatment table at an interval, an aeration plate is disposed at the bottom end of the inside of the aeration tank. The cleaning assembly works with the filtering assembly to automatically clean the screen in the filtering assembly to prevent impurities from blocking the screen, meanwhile, the screen can be automatically moved out of the filter tank for easy replacement, which is very convenient.