APPARATUS AND METHOD FOR TREATING WASTEWATER

PROBLEM TO BE SOLVED: To provide an apparatus and method for treating wastewater whereby a finely particulate solid component suspended in wastewater is efficiently recovered in a granular state. SOLUTION: Wastewater containing a solid component suspended therein is supplied to the primary side of a...

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Bibliographic Details
Main Authors TOTSUKA HISAO, ITO MITSUHIRO, UNOHARA SATOSHI
Format Patent
LanguageEnglish
Published 11.03.2003
Edition7
Subjects
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:PROBLEM TO BE SOLVED: To provide an apparatus and method for treating wastewater whereby a finely particulate solid component suspended in wastewater is efficiently recovered in a granular state. SOLUTION: Wastewater containing a solid component suspended therein is supplied to the primary side of a plurality of coil-type filter elements 8 to catch the solid component. Thus caught solid component is separated by a pressurized gas supplied from the secondary side. An aqueous suspension containing the separated solid component is discharged into an aqueous suspension tank 17 and then dehydrated by a dehydration means 18. The resultant solid component is mixed with a solidifying agent and granulated by a mixing and granulating apparatus 19.
Bibliography:Application Number: JP20010270636