The present invention discloses a cleaning liquid for a ship ballast water treatment filter, an online cleaning device and an online cleaning method. The online cleaning device comprises a filter cleaning pipeline and a cleaning liquid preparation tank located in the filter cleaning pipeline. The cleaning liquid preparation tank is provided with a cleaning liquid outlet and a cleaning liquid reinjection opening. The filter cleaning pipeline comprises a cleaning liquid injection pipeline located between the cleaning liquid outlet of the cleaning liquid preparation tank and a filter water inlet, and a cleaning liquid reinjection pipeline located between a filter water outlet and a cleaning liquid reinjection opening of the cleaning liquid preparation tank. The cleaning liquid prepared in the cleaning liquid preparation tank is injected into the filter through the cleaning liquid injection pipeline and is re-injected into the cleaning liquid preparation tank through the cleaning liquid reinjection pipeline.

A discharge control device for a filter system and a filter system for filtering a media flow of a first and a second medium is provided with a collecting chamber that collects the second medium separated from the media flow. A sensor arrangement with a first sensor unit, a second sensor unit, a first shut-off valve having a closure body, and a second shut-off valve is provided. The first sensor unit is operatively connected to the first shut-off valve. The first sensor unit has a float that purely mechanically actuates the closure body of the first shut-off valve. The second shut-off valve is arranged in series in flow communication with the first shut-off valve. The second shut-off valve has an electromagnetically actuatable valve controlled by the second sensor unit as a function of a fill level of second medium in the collecting chamber.

In a gravity fluid filtration system, upper and lower fluid reservoirs may be mated together. Unfiltered fluid may be supplied to the upper reservoir. One or more filters provide fluid communication between the upper and lower fluid reservoirs. Fluid may pass through the filters into the lower fluid reservoir. The weight of the fluid in the gravity filtration system may be monitored to maximize the fluid flow rate without loss of fluid by supporting the fluid reservoirs on a moveable platform interconnected to a stationary base by a force reactive linkage. Automatic fill components may be provided for automatically actuating a fluid supply valve connected to an unfiltered fluid source. As filtered fluid is withdrawn from the lower reservoir, actuation of the fluid supply valve to an open position may permit unfiltered fluid to be supplied to the upper reservoir. Supply of unfiltered fluid to the upper reservoir may be stopped upon actuation of the fluid supply valve to the closed position. Actuation of the fluid supply valve is a function of the weight of the fluid in the filtration system and/or vertical travel of the moveable platform.

A side-flushing mechanical filter system includes a spring positioned within a pipe and a plurality of plates attached to the spring, each plate defining at least one hole, and a rod positioned partially within the pipe, a proximal end of the rod attached to a distal-most plate and a distal portion of rod extending from the distal end of the pipe. A major face of each plate is configured to arrest sediment from water flowing into the pipe via a first water inlet while the holes defined by the plates enable filtered water to flow therethrough and out of the first water outlet when the first water inlet and first water outlet are opened. During cleaning of sediment, graywater flows into the pipe via the second water inlet and over the plates while a user moves the rod to dislodge sediment from the plates and toward an outlet.

A system for filtering fluids includes a primary filter (2) having at least one filter element that can be penetrated in one direction during the filtration process and can be penetrated in the opposite direction for a backflushing process. An aftertreatment device (36) is mounted downstream of the primary filter (2) for the backflushed quantities discharged by the primary filter to be processed and includes at least one filter chamber (11) that holds the backflushed quantities and that has a fluid inlet, a fluid outlet and at least one aftertreatment filter element (19). A control device (9) delivers one portion of the backflushed quantity at a time to the associated aftertreatment filter element (19).

A base station (1) and a bioprocess system (3), wherein said base station (1) comprises: a frame or housing (5), wherein said frame or housing comprises a number of valves (7a-f, 9a-d, 11a-f, 13a-e, 15a-f) into which a disposable tubing set (21) during run of the system is provided such that at least one inlet (23a-j) of the disposable tubing set is connected to at least one outlet (25a-f) of the disposable tubing set via a bioprocess separation device (31) of the bioprocess system (3); a movable pump holding device (35), which can be provided in at least two different positions, whereof one is within the frame or housing (5) and another is at least partly outside the frame or housing (5) and which comprises at least one pump main body (37), said pump mainbody comprising a connection (39) configured for connecting to a disposable pump connection part (27) comprised in the disposable tubing set (21).

Disclosed herein is a water purifying system, including: a raw water tank configured to store raw water; a filter unit configured to include a plurality of filtration modules for purifying the raw water and a plurality of valves for feeding or cutting off the raw water; a raw water pump configured to feed the raw water from the raw water tank to the filter unit; and a backwash module configured to feed backwash water to the filter unit, in which some of permeate water permeated by the filter unit is fed to the backwash module to be used as the backwash water and a feed pressure of the backwash water is fed by the raw water pump.

A filtering system (10) includes a filtering apparatus having a filter unit for receiving liquid to be filtered, a receptacle for receiving filtered liquid, and an adapter (14) for coupling the filter unit to the receptacle, and also includes a base (12) having a cradle (26) for receiving the filtering apparatus and a base vacuum delivery port (28). The adapter includes an adapter vacuum receiving port (22) coupled to the vacuum delivery port for driving the liquid through the filter and—as filtered liquid—into the receptacle. The cradle and the adapter have an interlocking mechanism (52, 54) that locks the filtering apparatus to the cradle in a locking position in which the vacuum receiving port is sealingly coupled to the base vacuum delivery port. The base vacuum delivery port has a vacuum valve (30) constituted as a normally-closed valve automatically forced open when the filtering apparatus locks to the cradle.

Disclosed is a compact separation system suitable for separating components of a multiphase fluid stream. The compact separation system utilizes a cylindrical cyclone in conjunction with a filtration system. The filtration system incorporates filtration media having at least one of the following characteristics: hydrophilic-oleophobic characteristics or oleophilic-hydrophobic characteristics. The separation system is configured to substantially preclude gas under-carrying into the liquid conduit lines.

A pipeline strainer having a body with a straining element therein. One or more magnets are removably inserted into the straining element and configured to be removed from the body without causing liquid within the cavity to drain from the pipeline strainer. A drywell is used to house the magnets. The movement of withdrawing the magnets pulls metal particles along the outer surface of the drywell toward a debris drain.