WATER TREATMENT METHOD AND SYSTEM

PROBLEM TO BE SOLVED: To provide a water treatment method and system which enable suction of filtered water and supply of backwashing gas by using a common apparatus to achieve simplification of the system.SOLUTION: A water treatment method includes: a filtration step of introducing water 1 to be tr...

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Bibliographic Details
Main Authors TANAKA KAZUFUYU, WAKAHARA SHINICHIRO, OKUMURA YOICHI, ISHIHARA TAKAHIRO
Format Patent
LanguageEnglish
Published 06.10.2014
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 provide a water treatment method and system which enable suction of filtered water and supply of backwashing gas by using a common apparatus to achieve simplification of the system.SOLUTION: A water treatment method includes: a filtration step of introducing water 1 to be treated into a filtering module 11 equipped with a filter medium to obtain filtered water 2; and a backwashing step of washing the filter medium. In the filtration step, the pressure of a gas phase part 3 brought into contact with the filtered water 2 discharged from the filtered water take-out side 12 of the filtering module 11 is reduced by pressure reducing means 31 to promote filtration by the filter medium. In the backwashing step, gas 4 discharged from the pressure reducing means 31 is supplied to the filtered water take-out side 12 of the filtering module 11 to wash the filter medium.
Bibliography:Application Number: JP20130065006