SHIPS' BALLAST WATER TREATMENT AGENT AND TREATMENT METHOD OF SHIPS' BALLAST WATER USING THE SAME

摘要

A ships' ballast water treatment agent is obtained by blending phosphate and sodium hydroxide into a hypochlorite solution and has pH of 10 to 13. A blending amount of phosphate is preferably such that a weight ratio of effective chlorine to phosphate acid (PO₄) (effective chlorine:phosphate acid) is 30:1 to 2:1. A ships' ballast water treatment agent as such has excellent performance in killing bacteria and microorganisms, such as plankton, included in ships' ballast water and has stability and an anticorrosion property.