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Advanced oxidation processes (AOPs), in a broad sense, are a set of chemical treatment procedures designed to remove organic (and sometimes inorganic) materials in water and wastewater by oxidation through reactions with hydroxyl radicals (·OH). [1]
Water treatment is any process that improves the quality of water to make it appropriate for a specific end-use. The end use may be drinking, industrial water supply, irrigation, river flow maintenance, water recreation or many other uses, including being safely returned to the environment. Water treatment removes contaminants and undesirable ...
Flocculation (except in polymer science) Process of contact and adhesion whereby dispersed molecules or particles are held together by weak physical interactions ultimately leading to phase separation by the formation of precipitates of larger than colloidal size. In contrast to aggregation, agglomeration is a reversible process.
Membrane bioreactors are combinations of membrane processes like microfiltration or ultrafiltration with a biological wastewater treatment process, the activated sludge process. These technologies are now widely used for municipal and industrial wastewater treatment. [ 1] The two basic membrane bioreactor configurations are the submerged ...
Per- and polyfluoroalkyl substances ( PFAS[ 1] or PFASs[ 2]) are a group of synthetic organofluorine chemical compounds that have multiple fluorine atoms attached to an alkyl chain; there are 7 million such chemicals according to PubChem. [ 3] PFAS came into use after the invention of Teflon in 1938 to make fluoropolymer coatings and products ...
Diethylhydroxylamine ( DEHA) is an organic compound with the formula (C 2 H 5) 2 NOH. Strictly, this is N, N -diethylhydroxylamine. It has an isomer, N, O -diethylhydroxylamine with the formula EtNHOEt. Pure N, N -diethylhydroxylamine is a colorless liquid, although it is usually encountered as a colourless-to-yellow solution in water with an ...
World of Warcraft has eight different crafting professions -- alchemy, blacksmithing, enchanting, engineering, leatherworking, tailoring, jewelcrafting, and inscription -- which means that a ...
The polymeric species formed by the hydrolysis of ferric chlorides are key to the use of ferric chloride for water treatment. In contrast to the complicated behavior of its aqueous solutions, solutions of iron(III) chloride in diethyl ether and tetrahydrofuran are well-behaved. Both ethers form 1:2 adducts of the general formula FeCl 3 (ether ...