Provided is a technique for easily trapping microbiota in a sample. A microbiota trapping device of the present disclosure includes a first solution tank having a first filter adapted to trap residue in a sample, and a second solution tank having a second filter adapted to trap bacteria in the sample. The second solution tank has a vent above the second filter.

The invention concerns a filtration assembly (1) for microbiological testing and a method of using the filtration assembly for that purpose. The filtration assembly (1) comprises a ring-like membrane support (10) holding a filtration membrane (11), a cylindrical reservoir (20) of which opposite axial ends have openings and one axial opening is removably and fluid-tightly attachable to the membrane support (10) to define a sample volume adjacent to the filtration membrane (11) on one axial side of the membrane support (10); and a drain member (30) removably and fluid tightly attachable to the membrane support (10) to define a drain channel space adjacent to the filtration membrane (11) on an opposite axial side of the membrane support (10).

Disclosed herein is a high efficiency portable filtration device and a method for rapidly filtering, concentrating and detecting the presence of any waterborne pathogens, such as bacteria, in a liquid (water) sample, measure the total numbers of bacteria present, and to estimate the endotoxin-producing bacteria levels in the water sample.

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 module alignment element, and a filter capsule including the module alignment element, a method of filtering fluid using the filter capsule, and a system including the filter capsule, are disclosed.

A connection mechanism for a suction device for vacuum membrane filtration applications, includes a support for receiving a membrane filter or a filtration base, a cavity formed below the membrane filter or the filtration base, a suction duct which opens centrally into the cavity, and a ventilation duct which opens laterally into the cavity. The connection mechanism further includes a closing element which can be moved into several switching positions and which can block or unblock both the suction duct and the ventilation duct depending on the switching positions.

A drainless reverse osmosis (RO) water purification system provides relatively pure water for on-demand dispensing, while recycling brine to a domestic hot water system. The drainless purification system includes a pre-filter catalyst cartridge for removing chlorine-based contaminants from a tap water supply upstream from an RO membrane. The catalyst is regularly refreshed by a high through-flow of water to a conventional cold water dispense faucet, thereby significantly prolonging the service life of the RO membrane. The RO membrane is incorporated into a multi-cartridge unit adapted for facilitated slide-out removal and replacement as needed. A control valve recycles brine from the RO membrane to the hot water system during pure water production, and recirculates tap water through the RO membrane when a pure water reservoir is substantially filled. The multi-cartridge unit may further include an air filtration system for providing a flow of filtered air.

A multiple tangential flow filtration (TFF) apparatus includes a plurality of tangential flow filtration (TFF) systems, a support frame defining a plurality of stations for supporting individual TFF systems and a single controller for controlling the plurality of tangential flow filtration systems. Each of the systems include at least a product vessel, a tangential flow filtration (TFF) filter and a pump for circulating a flow of liquid between said product vessel and said filter.

The present invention relates to a filtration system comprising a cabinet, a filtration device having a filtrate or retentate vessel arranged outside the cabinet, and a weighing device that is configured to weigh the filtrate or retentate vessel. The weighing device can be arranged inside an enclosure and the enclosure can be arranged inside the cabinet.

The present disclosure relates to a filter capsule that supports direct integrity testing of an internal filter element. The filter capsule includes a filter housing having an inlet port, an outlet port, a passage running longitudinally between the inlet port and outlet port and holding a filter element, and an aseptic vent assembly. The filter housing also includes an integrity test assembly that can be used as a direct connection for integrity testing hardware, as opposed to upstream of the filter capsule. In one embodiment, the integrity test assembly comprises a body having a bore formed through its interior and a movable plunger within the bore. The plunger includes a handle to move the plunger between a closed position and an open position. Various seals between the plunger and the bore form a fluid tight seal between various portions of the plunger and the bore.