A device for filtering liquids, including a filtration module and an ultrasound emission module, where the ultrasound emission module is fixed distant from the filtration module using a fixing means, and the ultrasound emission module is equipped coaxially along its axis with a weight or is equipped perpendicular to its axis with at least one weight, the filtration module and the ultrasound module equipped with its at least one weight going into resonance via the fixing means when the ultrasound emission module emits ultrasound.

A filtration system can include a loading member configured to receive a plurality of filtration members which can be sequentially moved from a non-active position in which a respective one of the plurality of filtration members is not in fluid communication with a sample flow path of the cell removal system, to an active position in which the respective filtration member is in fluid communication with the sample flow path, and to a discarded position in which the respective filtration member has been removed from fluid communication with the sample flow path.

An apparatus for reducing concentration polarization and/or membrane fouling on a membrane surface in a filter unit (102) during a membrane separation process and/or a filter cleaning process. The apparatus includes (i) a signal generator (106) that generates electrical signals when there is a fluid flow in the filter unit (102) and (ii) an ultrasonic transducer assembly (108) that receives the electrical signal from the signal generator to generate ultrasonic waves using one or more ultrasonic transducers (604). The ultrasonic waves pass through the filter unit (102) during the membrane separation process and/or the filter cleaning process and generate at least one of a turbulence in the flow of fluid or a vibration on the membrane surface to dislodge particles clogging the membrane surface, thereby reducing the concentration polarization and/or the membrane fouling on the membrane surface of the filter unit (102), which in turn increasing membrane permeability and efficiency.

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 system for treatment of a polluted effluent includes an outer chamber and a computerized control system. The system is configured to treat an effluent/catalyst mixture that includes the polluted effluent in admixture with a purification slurry. The slurry includes particles of one or more catalysts and/or organoclays. The treatment of the effluent/catalyst mixture is carried out by contact between the particles of the catalysts and/or organoclays and the polluted effluent to mineralize or degrade pollutants in the polluted effluent.

The invention concerns a subsea water processing system comprising an electrochemical unit that uses raw or treated seawater to generate high pH and low pH solutions that are used to clean at least one subsea process apparatus during a cleaning cycle by circulation through the at least one subsea process apparatus via acid or base flow lines connecting the electrochemical unit with the subsea process apparatus on-site.

The disclosure pertains to sanitizing the permeate flow path of a reverse osmosis system. A method of sanitizing a filtration system is disclosed that can include injecting a biocide into a permeate compartment of an operating reverse osmosis system. The method can also include maintaining pressure in a concentrate compartment of the reverse osmosis system simultaneously while injecting the biocide.

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.

The disclosure provides a hollow fiber liquid filter device provided with exhaust fiber membranes. The hollow fiber liquid filter device comprises a shell, a liquid inlet end, a liquid outlet end, a melt-blown fiber filter element, a hollow fiber liquid filtering part and a hollow fiber gas filtering part, wherein the liquid inlet end and the liquid outlet end are respectively connected to the upper end and the lower end of the shell, the melt-blown fiber filter element is arranged on the inner side of the shell, the hollow fiber liquid filtering part and the hollow fiber gas filtering part are respectively arranged on the inner side of the melt-blown fiber filter element, a liquid inlet is formed in the liquid inlet end, and ,a liquid outlet is formed in the liquid outlet end.

A filtration unit for purifying or treating fluid that includes one or more membrane units having a permeate section. The permeate section of the membrane units is fed fluid that passes through a sealing insert having a fluid inlet and a passage that discharges in fluid communication with the permeate section. The sealing insert is arranged in a support frame of the membrane unit to form a fluid channel for delivering fluid through the insert and along an outer perimeter surface that maintains performance of the membrane unit during operation.