A system for growing and harvesting algae biomass includes a photo-bioreactor suitable for algae growth in water and a filter unit in fluid communication with the photo-bioreactor. An algae slurry, when at least partially contained within the photo-bioreactor, generates hydrostatic fluid pressure that exclusively drives the algae slurry to the filter unit and discharges a permeate.

A method for preparation of conductive polymer/carbon nanotube (CNT) composite nanofiltration (NF) membrane and the use thereof. This conductive polymer/CNT composite NF membrane is obtained by polymerizing conductive polymer into a CNT membrane and then in-situ cross-linking with glutaraldehyde under acidic condition. The synthetic method for the conductive polymer/CNT composite NF membrane is simple and has no need of expensive equipment. The prepared membrane has controllable membrane structure and possesses superior electrical conductivity and electrochemical stability. The membrane can couple with electrochemistry for electrically assisted filtration. With the electrical assistance, the membrane can achieve improved ion rejection performance while retaining high permeability by enhancement of membrane surface charge density, which alleviates the permeability-selectivity trade-off. Furthermore, the electrically assisted NF membrane filtration can also enhance the removal for small molecular organic pollutants.

A header-equipped air diffusion device can sufficiently suppress the intrusion of sludge into the air diffusion device from the header and allow stable operation even with repeated operating and stopping, and a membrane separation activated sludge device. The header-equipped air diffusion device can include an air diffusion device and a header which are immersed in water to be treated. The header includes an air storage unit, on the lower end of which is formed an inlet for the water to be treated, and an air supply part and an air sending part provided on the upper section of the air storage unit. The air sending part and a horizontal tube of the air diffusion device are connected, the air sent from the header is diffused by the air diffusion device, and an air sending of the air sending part in the air storage unit is positioned above an air supply port of the air supply part.

A chemical liquid purification apparatus includes a tank body, a return tube, a liquid sending pump, a filtration device and a piping. The tank body has a liquid passage port and a circulation port communicated to a storage space inside the tank body. The return tube has one end connected to the circulation port and another end extending to the storage space. The liquid sending pump and the filtration device are located outside the tank body in between the liquid passage port and the circulation port. The piping is connecting the liquid sending pump and the filtration device to the liquid passage port and the circulation port.

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.

The present disclosure provides for devices, systems and methods for fractionation and concentration of particles from a fluid sample. This includes a cartridge containing staged filters having porous surface in series of decreasing pore size for capture of particles from a fluid sample; and a permeate pressure source in fluid communication with the cartridge; wherein the particles are eluted from the porous surfaces and dispensed in a reduced fluid volume.

Embodiments of the present disclosure relate generally to dead-end filtration systems and, more particularly, to pulse-modulated periodic backflush systems and methods for clearing fouling layers in dead-end filtration systems. In some embodiments, a controller may control the flow of fluid in the system from cycling from a forward flow to a reverse flow. In some embodiments, the controller may cycle from forward to reverse flow based on a volumetric flow ratio. Embodiments of the present disclosure describe optimal volumetric flow ratios for optimizing the break of cake in a dead-end filtration system. Embodiments of the present disclosure describe optimal volumetric flow ratios for optimizing recovery percentages of targeted particles.

A water-treating ceramic filter module comprising a filter unit, and a housing containing the filter unit; the filter unit comprising pluralities of cylindrical honeycomb structures each having pluralities of flow paths partitioned by porous ceramic cell walls and extending in one direction, and sheet-shaped connecting members connecting the honeycomb structures in series in the flow path direction; each connecting member having pluralities of penetrating holes for achieving the communication of the corresponding flow paths of adjacent honeycomb structures, to constitute pluralities of communicating flow paths; the communicating flow paths being composed of first communicating flow paths plugged only at one-side end, and second communicating flow paths plugged only at the other-side end; and the housing has an inlet on the side of the one-side end for receiving the water to be treated from outside, and an outlet on the side of the other-side end for discharging the treated water.

The present invention relates to a device (1) for the treatment of biological material (2) comprising a concentration circuit (3) having at least one concentration filter (20), at least one supply conduit (30) of the biological material (2), and a concentration section (40) interposed between separation filter (10) and concentration filter (20) and defining an inner volume configured to accommodate a fraction of interest (2a) of the biological material (2). A discharge conduit (50) is connected to the second access (22) of the concentration filter (20) downstream of the concentration section (40), and an infusion line (60) is connected to the concentration circuit (3). The concentrated fraction of interest (2a) of biological material (2) may be withdrawn from a collection channel (70) or by removing the entire concentration section (40) from the rest of the circuit.

Methods and devices for producing a population of liposomes are provided. Aspects of the methods include applying a centrifugal force to a suspension of liposomes in a manner sufficient to pass the liposomes through a porous membrane to produce a population of liposomes. Aspects of the invention further include devices, systems and kits useful for performing the methods.