What is ultrafiltration?

Ultrafiltration (UF) is a physical screening process that uses pressure as a driving force to separate liquids with different pore sizes of ultrafiltration membranes. The molecular cut amount (CWCO) is generally from 6,000 to 500,000 and the pore diameter is 100 nm (nanometer). Originated in 1748, Schmidt used cotton film or enamel membrane filtration solution. When a certain pressure was applied, the solution (water) penetrated the membrane, while proteins, colloids and other substances were intercepted, and the filtration precision was far beyond the filter paper. So he proposed the phrase ultrafiltration. In 1896, Martin made a *manufactured ultrafiltration membrane. In the 1960s, the concept of molecular weight was the beginning of modern ultrafiltration. The 1970s and 1980s were high-speed development. It began to mature after the 1990s. China's research on this technology was late, and it was still in the research period in the 1970s. In the late 1980s, it entered the stage of industrial production and application.

Ultrafiltration is similar to reverse osmosis technology in that it is a pressure-driven membrane separation technique. In the spectrum of the separation range from reverse osmosis to electro-microfiltration, between nanofiltration (NF) and microfiltration (MF), the molecular weight cut-off range is 50-500,000 Daltons, and the approximate pore size of the membrane is 50. â€”1000A.

Hormone:

A chemical substance produced in the body that controls and regulates the activity of certain cells or organs. Many hormones are secreted by special glands, such as thyroid hormone produced by the thyroid gland. Hormones are essential for every activity of life, including the processes of digestion, metabolism, growth, reproduction, and mood control. Many hormones, such as neurotransmitters, are active in more than one physical process.

Endocrine:

Pertaining to hormones and the glands that make and secrete them into the bloodstream through which they travel to affect distant organs. The endocrine sites include the hypothalamus, pituitary gland, pineal gland, thyroid, parathyroids, heart (which makes atrial-natriuretic peptide), the stomach and intestines, islets of Langerhans in the pancreas, the adrenal glands, the kidney (which makes renin, erythropoietin, and calcitriol), fat cells (which make leptin). the testes, the ovarian follicle (estrogens) and the corpus luteum in the ovary). Endocrine is as opposed to exocrine. (The exocrine glands include the salivary glands, sweat glands and glands within the gastrointestinal tract.)

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