Mixtures of free halogen-generating biocides, halogen stabilizers and nitrogen containing biocides in water treatment and papermaking applications
申请人:LONZA INC.
公开号:US20030029812A1
公开(公告)日:2003-02-13
The present invention is a method for controlling (e.g. inhibiting) the growth of microorganisms or killing microorganisms in an aqueous solution, such as that found in a water treatment facility or papermaking facility. The method includes adding an effective amount of (a) a free halogen-generating biocide, (b) a halogen stabilizer, and (c) a quaternary ammonium compound, a biocidal amine or salt thereof, or mixture thereof to the aqueous solution. The aqueous solution may be water in a recreational facility, an industrial cooling system, a water treatment facility or a water slurry, such as a circulating water slurry, in a papermaking facility. The mixture of the present invention is useful as a slimicide. The quaternary ammonium biocide and/or biocidal amine increase the efficacy of the free halogen-generating biocidal system.
本发明是一种控制(例如抑制)水溶液中微生物的生长或杀死微生物的方法,例如水处理设施或造纸设施中的水溶液。该方法包括向水溶液中添加有效量的 (a) 产生游离卤素的杀菌剂、(b) 卤素稳定剂和 (c) 季铵盐化合物、杀菌胺或其盐或其混合物。水溶液可以是娱乐设施、工业冷却系统、水处理设施中的水,也可以是造纸设施中的水浆,如循环水浆。本发明的混合物可用作杀粘剂。季铵盐杀菌剂和/或杀菌胺可提高产生游离卤素的杀菌系统的功效。