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Ultrafiltration (UF) is a variety of membrane filtration in which forces such as pressure or concentration gradients lead to a separation through a semipermeable membrane. Suspended solids and solutes of high molecular weight are retained in the so-called retentate, while water and low molecular weight solutes pass through the membrane in the ...
The capacity of the ultrafiltration (UF) plant is 6.6 cubic meters of water per second (570,000 cubic meters per day). [1] [2] The plant complex was chosen as one of the most important water projects in the world at the Global Water Summit in Abu Dhabi in 2016. Companies from the United States, Germany, Switzerland, Spain, Italy, Turkey and the ...
FilmTec Corporation was a US company established in Minnesota in 1977 that specialized in manufacturing the then new thin-film composite membranes used in water treatment applications. [1] In August 1984, the company was acquired by Dow Chemical Company forming its Dow Water & Process Solutions business unit. In August 2017, FilmTec Corporation ...
Membrane technology covers all engineering approaches for the transport of substances between two fractions with the help of semi-permeable membranes. In general ...
In systems where the membranes are in a separate tank from the bioreactor, individual trains of membranes can be isolated to undertake cleaning regimes incorporating membrane soaks, however, the biomass must be continuously pumped back to the main reactor to limit mixed liquor suspended solids concentration increases.
The membrane assembly consists of a pressure vessel with a membrane that allows feedwater to be pushed against it. The membrane must be strong enough to withstand the pressure. RO membranes are made in a variety of configurations. The two most common are spiral-wound and hollow-fiber. Only part of the water pumped onto the membrane passes through.
In ultrafiltration, the molecular weight cut-off or MWCO of a membrane refers to the lowest molecular weight of the solute (in daltons) for which 90% of the solute is retained by (prevented from passing through) the membrane, [1] or the molecular weight of the molecule (e.g. globular protein) that is 90% retained by the membrane.
Slow continuous ultrafiltration (SCUF) is an artificial method which approximately mimics the ultrafiltration function of the kidneys. SCUF is a continuous renal replacement therapy (CRRT) generally used to remove fluid from fluid overloaded patients with acute kidney failure.