METHOD FOR PURIFYING BOTTOM SOIL

METHOD FOR PURIFYING BOTTOM SOIL

PROBLEM TO BE SOLVED: To purify bottom soil by ameliorating bottom poor oxygen layer causing red water, water-bloom or the like. SOLUTION: High density and high oxygen concentrated water having density and oxygen concentration higher than poor oxygenated sea water of a bottom contact boundary layer...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHOKAI MAKOTO, KANAMAKI SEIICHI, SHIROO KAZUO, INUI ETSURO
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
METALLURGY
SOIL SHIFTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To purify bottom soil by ameliorating bottom poor oxygen layer causing red water, water-bloom or the like. SOLUTION: High density and high oxygen concentrated water having density and oxygen concentration higher than poor oxygenated sea water of a bottom contact boundary layer located right above the bottom 24 in the bottom layer 3 is used. The high density and high oxygen concentrated water 13 taking sea water and produced by a density rising device 1 and dissolution of air or oxygen or a mixing device 2 is supplied to the inside of the bottom contact boundary layer from an outlet 5 through a piping 6, and a high oxygenated water layer having specific high oxygen concentration is formed inside of the bottom contact boundary layer. Poor oxygenation of the whole bottom layer water is prevented to purify bottom soil.