WATER TREATMENT SYSTEM AND WATER TREATMENT METHOD

• Main Authors: OBARA TAKUMI, HARAGUCHI SATOSHI, OGI RIE, IWASHITA MARI, HAYAMI TOKUSUKE, KO KINYO
• Format: Patent
• Language: English
• Published: 26.09.2013
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

PROBLEM TO BE SOLVED: To provide a water treatment system and a water treatment method for reducing the total cost required for recycling organic wastewater.SOLUTION: A water treatment system includes: an anaerobic reactor 10 for decomposing organic pollutants in wastewater by the action of an anaerobic microorganism; a trickling-type aerobic reactor 12 packed with a filler to which microorganisms are to be attached, the trickling-type aerobic reactor being provided after the anaerobic reactor, for trickling water to dissolve oxygen in the atmosphere therein and thus supplying oxygen; and a membrane separation active sludge reactor 13 provided after the anaerobic reactor and equipped with a separation membrane for solid-liquid separation that is placed in a biological reaction tank, wherein, in treated water having been treated with the anaerobic reactor, a portion corresponding to the amount required as reclaimed water is treated with the membrane separation active sludge reactor while the remainder is treated with the trickling-type aerobic reactor.