A non-powered drain pump screen device is disposed in a river, a stream, a waterway, or a place in which a significant amount soil is carried by a water flow. Upper and lower impellers are provided with upper and lower blades. The lower blades prevent reentry of impurities while rotating due to resistance to a flow of fluid in a non-powered manner. The upper impellers are rotated in a non-powered manner, so that the upper blades filter impurities. The non-powered drain pump screen device is disposed in a waterway to remove impurities at low maintenance costs.

A liquid treatment device is configured to perform at least one treatment from a group of at least two different treatments. The liquid treatment device includes a connector defining an input conduit and an output conduit, a housing defining a closed-off space, and an adapter inside the housing. The adapter is moveable in the housing between at least a first position corresponding with a first liquid treatment and a second position corresponding with a second liquid treatment. A control is disposed outside the housing and connected to the adapter, and is configured to set the adapter from outside of the housing into one of at least the first position and the second position.

A filtration apparatus for installation in a catch basin vault is described. A perforate support plate includes a retractable basket that lies below an opening in the support plate and is positioned below a manhole. Water flowing into the system flows onto the support plate and into the basket, which traps debris. The basket is slidable from an in-use position where the basket is positioned to screen debris flowing into the vault, and a cleanout-position in which the interior of the vault is accessible so that the vault may be cleaned. When the vault needs to be cleaned, the manhole cover is removed to allow workers to have access to the interior of the vault. The workers may clean out the basket, and then slide it out of the way so that they have access to the vault interior.

A processing device for grey water for a rail vehicle includes a grey water container, a grey water supply in an inlet region, a drain for processed grey water in an outlet region, and a slotted filter between the inlet and outlet regions that has at least one movable sliding member which touches the base of the grey water container in a lowered position and is lifted off the base in a raised position. The base of the grey water container rises from the inlet region to the outlet region. A cleaning outflow is disposed in the inlet region on the base side. A fresh water supply for supplying fresh water is disposed in the outlet region. A rail vehicle having at least one processing device for grey water for a WC module or toilet bowl is also provided.

A self-cleaning filter includes a housing disposing a filter media having a permeable sidewall and an axial bore connected with the inlet conduit, a sleeve connected in-line with the axial bore and downstream of the inlet conduit, and a shuttle having a piston moveably disposed in the sleeve and an upstream element carrying a scraper disposed with the axial bore, whereby the hydraulic fluid flows from the inlet conduit through the permeable sidewall into the housing annulus and the hydraulic pressure in the axial bore applies a downward force on the shuttle. The scraper is moved downstream within axial bore to clean the filter media when the downward force due to the increased differential pressure across the filter media exceeds an upstream shuttle force.

The present invention relates to a demount-free electrical cleanable filter, which includes a housing and a main filter cylinder in the housing. the housing is provided with a cleaning hoop and a reciprocating driving device. The cleaning hoop is sleeved on cylinder filtering material of the main filter cylinder. The reciprocating driving device drives the cleaning hoop to move up and down repeatedly, so as to conduct a clean-up operation on the main filter cylinder. The beneficial effect of the present invention is as follows. The present invention can be used in vehicle using fuel, engine and industry, environmental filtering, according to the flow rate and different designs of material. By a novel structure design, the lifetime of the present filter is greatly improved. During the entire life cycle of the filter, an apparatus which uses the present filter does not need to replace the fuel filter.

The present invention relates to a demount-free electrical cleanable filter, which includes a housing and a main filter cylinder in the housing. the housing is provided with a cleaning hoop and a reciprocating driving device. The cleaning hoop is sleeved on cylinder filtering material of the main filter cylinder. The reciprocating driving device drives the cleaning hoop to move up and down repeatedly, so as to conduct a clean-up operation on the main filter cylinder. The beneficial effect of the present invention is as follows. The present invention can be used in vehicle using fuel, engine and industry, environmental filtering, according to the flow rate and different designs of material. By a novel structure design, the lifetime of the present filter is greatly improved. During the entire life cycle of the filter, an apparatus which uses the present filter does not need to replace the fuel filter.

The present invention provides a tubular filter element 3 configured to filter fluid by allowing the fluid to pass therethrough from the inside to the outside, and to be backwashed by allowing the fluid to pass therethrough from the outside to the inside. The filter element 3 includes: a tubular filter member 31; first and second end members 32 and 33 having openings and respectively provided at first and second ends of the filter member 31; and a trapped object remover 34 provided in the interior of the filter member 31, and movable by the fluid flow while its outer periphery slides in contact with the inner periphery of the filter member 31 to remove trapped objects. A flow rate restricting means for restricting the fluid flow rate through the second end member 33 is provided on the second end side of the filter member 31.

Some implementations can include method and system to collect and remove micro plastics from a water environment or ecosystem.

A chip conveyor includes: a cover body; a guide plate configured to guide chips, which are conveyed inside the cover body, so as to be directed from a chip receiving position toward a chip discharging position; a case attached to the cover body and having an internal space provided therein; and a float switch configured to detect, based on a coolant flowing from inside the cover body into the internal space, that a liquid level of the coolant inside the cover body is equal to or greater than a prescribed liquid level. The cover body includes a first space and a second space that are partitioned from each other by the guide plate. The cover body is provided with: a first opening allowing communication between the first space and the internal space; and a second opening allowing communication between the second space and the internal space.