METHOD AND APPARATUS FOR TREATING WASHING WASTE WATER OF FUEL TANK

PROBLEM TO BE SOLVED: To simplify operation or maintenance and to conserve labor in the treatment of the washing waste water of a fuel tank. SOLUTION: A washing waste water treatment apparatus has a cascade type small-sized square tank 1 with a vol. of about 20m , a filter 2 constituted of a double...

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Bibliographic Details
Main Authors NIKI SHINICHI, EJIMA ARATA, SEKIMOTO MASATOSHI, OSHITA YOSHIYUKI, KAWAHARA AKIMASA
Format Patent
LanguageEnglish
Published 11.03.1997
Edition6
Subjects
CHEMISTRY
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:PROBLEM TO BE SOLVED: To simplify operation or maintenance and to conserve labor in the treatment of the washing waste water of a fuel tank. SOLUTION: A washing waste water treatment apparatus has a cascade type small-sized square tank 1 with a vol. of about 20m , a filter 2 constituted of a double changeover type primary filter 2a of about 300 mesh and a vol. filter type secondary filter 2b of about 1μm mesh, a membrane separator equipped with a compressor part and a porous membrane part and an adsorbing separator 4 equipped with an activated carbon adsorbing bed. By removing sludge by the filter, a membrane type oil-water separator can be used and the separability of oil and water is enhanced. As a result, a water tank fitted with an adsorbing mat provided heretofore or a precoat filter becomes unnecessary and the treatment apparatus becomes simple and operation also becomes easy.
Bibliography:Application Number: JP19950248564