Algae harvesting and cultivating systems and methods for producing high concentrations of algae product with minimal energy. In an embodiment, a dead-end filtration system and method includes at least one tank and a plurality hollow fiber membranes positioned in the at least one tank. An algae medium is pulled through the hollow fiber membranes such that a retentate and a permeate are produced.

Presteralized manifolds are provided which are designed for sterile packaging and single-use approaches. Disposable tubing and flexible-wall containers are assembled via aseptic connectors. These manifolds are adapted to interact with other equipment which can be operated by a controller which provides automated and accurate delivery of biotechnology fluid. The manifold also can be used in conjunction with one or more sensors such as pressure and conductivity sensors that interact with the controller or are connected to a separate user interface. An aseptic environment obtains avoiding or reducing cleaning and quality assurance procedures.

A reverse osmosis (RO) water filtration device includes a body, a RO cartridge, a first cartridge, a second cartridge and a storage tank all mounted inside the body. Water to be filtered sequentially goes through a water inlet of the RO water filtration device, the first cartridge, the RO cartridge, the storage tank, the second cartridge, and a faucet to get the water filtered. The storage tank provides additional water supply when the pressure between the faucet and RO cartridge is below the water pressure inside the storage tank to increase water volume upon opening a faucet.

Systems and methods used to control tangential flow filtration are provided, including control systems and methods for use with connected systems with upstream processing units, such as chromatography processing units, in fluid communication with a tangential flow filtration processing unit. Also included are control systems and methods for performing continuous concentration using single-pass tangential flow filtration with permeate flow control.

A system for separating, isolating, and concentrating extracellular vesicles (EVs) is provided. The system comprises an ultrafiltration device; an isoporous membrane configured for use in the ultrafiltration device; and a collection container for collecting filtrate from the ultrafiltration device. The ultrafiltration device may be configured to perform diafiltration. The ultrafiltration device may comprise a fixed-volume ultrafiltration device. The ultrafiltration device may comprise a tangential flow filtration device. The system may be scalable.

A bioartificial liver system is described that incorporates a cell reservoir and hepatocyte spheroids to both increase the number of and longevity of cells in the system. Additional methods are also described for forming spheroid aggregates from isolated hepatocytes.

An object of the present invention is to provide a water treatment system in which explosions can be prevented even when filtering water to be treated that is able to generate flammable gas. A water treatment system according to an embodiment of the present invention includes a water-to-be-treated tank which stores water to be treated, a crossflow-type filtration membrane module which filters the water to be treated, a supply passage through which the water to be treated is supplied to the filtration membrane module from the water-to-be-treated tank by using a supply pump, and a recirculation passage through which the water to be treated is recirculated from the filtration membrane module to the water-to-be-treated tank. The supply passage is provided with an aspirator which mixes a gas with the supplied water to be treated, the gas being recirculated through the recirculation passage to the water-to-be-treated tank together with the water to be treated. The water-to-be-treated tank has an upper space provided above the liquid surface of the stored water to be treated, the upper space being hermetically filled with an inert gas. The water-to-be-treated tank is further provided with a gas transport passage through which the inert gas is supplied from the upper space to the aspirator.

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.

The inventions relate to purifying water and can be used in domestic water purification systems. The claimed filtered water storage unit for the storage device of a water purification system includes a housing, an elastic chamber for filtered water, and a region for pressurizing untreated water. The water purification system includes a reverse osmosis membrane, a clean water discharge pipe, an overflow into a drain, a clean water tap, and a storage device having a filtered water storage unit and a hydroautomatic unit. The outlet of the controlled chamber of a valve is associated with the water pressurizing region in the housing of the water storage unit, and the input of the controlling chamber of a valve is associated with the clean water discharge pipe upstream of the tap, wherein the valve for controlling water pressurization is normally open and the valve for controlling drainage is normally closed.

A method and process for deploying a stand-alone system for recycling and processing residential and/or industrial grey water. System includes measuring and recording sensor data for indicating incoming grey water quality, deterministic conditional logic algorithm for recycling, processing and reintroducing grey water to drinking and non-drinking water systems in both residential and/or industrial platform. The process disclosed in this filing aims to describe a water recycling system that brings together several sub-systems in order to create a high level process for grey water recycling. The process presents a linear series design in which grey water will pass each sub-system in a linear fashion and will progressively become cleaner as it is pushed to the next sub-system.