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[2] [3] [4] The term dialysis was first routinely used for scientific or medical purposes in the late 1800s and early 1900s, pioneered by the work of Thomas Graham. The first mass-produced man-made membranes suitable for dialysis were not available until the 1930s, based on materials used in the food packaging industry such as cellophane .
Viskase (formerly Visking) is a global corporation based out of Lombard, Illinois, United States that supplies plastic, cellulose, and fibrous film and packaging to the food service industry, including casings for processed meats such as hot dogs and sausages.
Dialysis tubing is typically supplied either wet or dry in rolls or pleated telescoped tubes. A wide variety of dialysis devices (or dialyzers) are available from several vendors. Dialyzers are designed for specific sample volume ranges and provide greater sample security and improved ease of use and performance for dialysis experiments over ...
Cavatappi is a generic name adopted by other brands that imitated Barilla's cellentani. This particular shape was born in the 1970s at Barilla in Parma , [ 5 ] when a set of pasta dies had been mistakenly made with a spiral (instead of straight) set of lines.
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This combination of the two digestates consists as a sludge form. The liquid fraction constitutes up to 90% of the digestate by volume, contains 2–6% dry matter, particles <1.2 mm in size, and most of the soluble nitrogen and potassium, while the solid fraction retains most of the digestate phosphorus, and contains dry matter content ˃ 15%. [3]
The widely used UASB reactor, for example, is a suspended-growth high-rate digester, with its biomass clumped into granules that will settle relatively easily and with typical loading rates in the range 5-10 kgCOD/m 3 /d. [2] Most common types of anaerobic digestion are liquid, plug-flow and solid-state type digesters. [6]
Microwave digestion is a chemical technique used to decompose sample material into a solution suitable for quantitative elemental analysis. [1] It is commonly used to prepare samples for analysis using inductively coupled plasma mass spectrometry (ICP-MS) , atomic absorption spectroscopy , and atomic emission spectroscopy (including ICP-AES ).