TREATMENT AGENT FOR HIGH WATER CONTENT DREDGED (DEPOSITED BOTTOM) MUD AND ITS TREATMENT

摘要

PROBLEM TO BE SOLVED: To provide a treating agent for high water content dredged mud, which is excellent in flocculating property and solid-liquid separating property, high in the flocculation compacting property of solid after treatment, capable of flocculating without adversely affecting environment and using a general purpose low pressure dehydrator and suitable for treating in large quantity, and also to provide the treating method. SOLUTION: The treating agent for high water content dredged mud contains a cation-ionized polysaccharide and an anionized polysaccharide, and flocculated floc is formed by adding the treating agent for high water content dredged mud, which contains the cationized polysaccharide and the anionized polysaccharide, to the high water content dredged mud having 200-3000% water content. And after that, the flocculated floc is naturally or forcibly dehydrated.