Microbial control medicine, and microbial control manner

摘要

PPROBLEM TO BE SOLVED: To provide a microorganism controlling agent in which sufficient effect is acquired at addition in low concentration in an actual water system, especially in an open circulating cooling water system, safety is high, and handling is easy, and to provide a microorganism control method. PSOLUTION: The microorganism controlling agent includes: one or more sorts chosen from 2-phosphonobutane-1,2,4-tricarboxylic acid, 1-hydroxyethylidene-1,1-diphosphonic acid, polymaleic acid, and these water-soluble salts; and a compound shown by general formula (I), as active ingredients. In the formula, RSB1/SBand RSB4/SBare a 1-4C linear or branched, same or different alkylene group, RSB2/SBand RSB5/SBare each a hydrogen atom, a same or different halogen atom, and a lower alkyl group or a lower alkoxy group, RSB3/SBis a 2-12C linear or branched alkylene group, RSB6/SBis a 1-18C linear or branched alkyl group, and ZSP-/SPis an anion dissociable in water. PCOPYRIGHT: (C)2010,JPO&INPIT