METHOD FOR SUSTAINING EFFECT OF PREVENTING MARINE BIOFOULING

摘要

A method for sustaining an effect of preventing marine biofouling, characterized by sustaining an effect of preventing marine biofouling by adding an aliphatic primary, secondary or tertiary amine, an aliphatic diamine or an aliphatic quaternary ammonium salt as an agent for preventing marine biofouling in the presence of a flocculant and/or a metal ion capable of flocculating floating suspended substances present in a seawater cooling water system thereby to prevent a decrease in the concentration of an agent for preventing marine biofouling due to adsorption of the agent for preventing marine biofouling onto the floating suspended substances.