Strategy for on-site in situ generation of oxidizing compounds and application of the oxidizing compound for microbial control

摘要

The invention provides a method of controlling biological fouling of water containing items. The method involves combining at least two reactants, a peroxygen source and an acyl group donor to form peracetic acid. Because the peracetic acid can be made in situ, the entire sum of its short lifespan can be used controlling biocidal fouling and storage and transport is simplified. The invention further facilitates the ease of controlling biocidal fouling by allowing the injection of the biocidal agent in liquid form, in a non-acidic environment, and without the need for any halogen. This allows the inventive biocide to be used with chemistries for which prior art biocides are inapplicable.

主权项

1. A method of microbial fouling control of a liquid system susceptible to biological fouling, wherein the liquid system comprises an industrial process water stream the method comprising generating a biocidal agent comprising peracetic acid by reacting a peroxygen source and triacetylethanolamine in the presence of 1-acetyl imidazole at a pH of from about 5 to about 8;
wherein the peroxygen source is selected from the group consisting of: hydrogen peroxide, a percarbonate salt, a perborate salt, a permanganate salt, a peroxysilicate, carbamide peroxide, urea hydrogen peroxide, an organic peroxide, tert-butyl hydroperoxide, and combinations thereof wherein the reaction occurs within the industrial process water stream.