SG132606A1 - Wastewater treatment apparatus and wastewater treatment method - Google Patents

Wastewater treatment apparatus and wastewater treatment method

Info

Publication number
SG132606A1
SG132606A1 SG200607707-7A SG2006077077A SG132606A1 SG 132606 A1 SG132606 A1 SG 132606A1 SG 2006077077 A SG2006077077 A SG 2006077077A SG 132606 A1 SG132606 A1 SG 132606A1
Authority
SG
Singapore
Prior art keywords
flocculation
water
treated
wastewater treatment
reaction tank
Prior art date
Application number
SG200607707-7A
Inventor
Satoshi Yamada
Motomu Koizumi
Michioaki Tanaka
Original Assignee
Kurita Water Ind Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kurita Water Ind Ltd filed Critical Kurita Water Ind Ltd
Publication of SG132606A1 publication Critical patent/SG132606A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/006—Regulation methods for biological treatment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/20—Activated sludge processes using diffusers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Abstract

After water to be treated is biologically treated, when flocculation treatment is performed by adding a flocculant for removing a dissolved material or a suspended material such as a fungus body or a biological metabolite in the thus-biologically treated water, the treated water having a good quality is obtained with a reduced amount of the flocculant being used. There is provided a wastewater treatment apparatus having a biological reaction tank 1 for biologically treating water to be treated, a flocculation reaction tanks 2A, 2B for conducting a flocculation reaction by adding a flocculant to the thus-biologically treated water flowing from the biological reaction tank 1, and a dissolved air flotation separation tank 3 for performing solid-liquid separation on the water subjected to a flocculation treatment flowing from the flocculation reaction tank 2B. An aeration unit is provided in the flocculation reaction tank 2A and, then, by performing aeration stirring, not only a flocculation ability is enhanced, but also a dissolved air flotation separation ability in the latter step is improved.
SG200607707-7A 2005-11-08 2006-11-06 Wastewater treatment apparatus and wastewater treatment method SG132606A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005323791A JP4862361B2 (en) 2005-11-08 2005-11-08 Waste water treatment apparatus and waste water treatment method

Publications (1)

Publication Number Publication Date
SG132606A1 true SG132606A1 (en) 2007-06-28

Family

ID=38081749

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200607707-7A SG132606A1 (en) 2005-11-08 2006-11-06 Wastewater treatment apparatus and wastewater treatment method

Country Status (5)

Country Link
JP (1) JP4862361B2 (en)
KR (1) KR101335186B1 (en)
CN (1) CN1962493A (en)
SG (1) SG132606A1 (en)
TW (1) TW200823153A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4996388B2 (en) * 2007-08-03 2012-08-08 オルガノ株式会社 Method for treating water containing dimethyl sulfoxide and water treatment apparatus containing dimethyl sulfoxide
JP5239653B2 (en) * 2008-09-04 2013-07-17 栗田工業株式会社 Pressure levitation treatment method
KR100921244B1 (en) * 2008-10-23 2009-10-12 전주시 Food waste water processing apparatus used dissolved air flotation unit
JP5250444B2 (en) * 2009-02-10 2013-07-31 オルガノ株式会社 Anaerobic biological treatment method and anaerobic biological treatment apparatus
CN102180560B (en) * 2010-08-30 2012-07-04 长春工程学院 Device and method for continuously and biologically treating urban sewage
JP2012223747A (en) * 2011-04-19 2012-11-15 Kikuchi Eco Earth:Kk Water treatment system and water treating method
KR101153187B1 (en) * 2012-04-12 2012-07-02 블루그린링크(주) Apparatus for purifying wastewater and method thereof
JP6194650B2 (en) * 2013-06-14 2017-09-13 三菱ケミカル株式会社 Water treatment method and water treatment apparatus
CN106045117A (en) * 2016-07-12 2016-10-26 大连海事大学 Method for treating waste liquor with floating coagulation method
JP6735830B2 (en) * 2016-08-08 2020-08-05 オルガノ株式会社 Membrane filtration method and membrane filtration system
JP2019202260A (en) * 2018-05-22 2019-11-28 積水化学工業株式会社 Water treatment system and water treatment method
JP2020006323A (en) * 2018-07-09 2020-01-16 栗田工業株式会社 Method for treating chloric acid-containing water and treating device
CN111039456A (en) * 2019-12-24 2020-04-21 福建省晋蓝环保科技有限公司 Efficient flocculation device for printing and dyeing sewage
TWI731678B (en) * 2020-05-12 2021-06-21 中宇環保工程股份有限公司 Method and device for treating molybdenum-containing wastewater and recovering iron molybdate crystals
JP7074156B2 (en) 2020-06-01 2022-05-24 栗田工業株式会社 Water treatment method and water treatment equipment
CN113548750A (en) * 2021-07-20 2021-10-26 福建盈浩文化创意股份有限公司 Harmless treatment method for waste glue
CN114057322A (en) * 2021-11-10 2022-02-18 遵义师范学院 Flocculation method for treating municipal road washing wastewater

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63162088A (en) * 1986-12-24 1988-07-05 Nikko Eng Kk Floating, filtrating and concentrating device for waste water
JPS63252594A (en) * 1987-04-10 1988-10-19 Mitsubishi Rayon Eng Co Ltd Aerobic biological treatment method
JPH0734914B2 (en) * 1988-09-19 1995-04-19 五洋建設株式会社 Sewage treatment method and apparatus
JPH07232197A (en) * 1994-02-23 1995-09-05 Kubota Corp Advanced treatment of water and its device
JPH10180298A (en) * 1996-12-20 1998-07-07 Shinko Pantec Co Ltd Treatment of waste water and waste water treating device
JP2000061495A (en) * 1998-08-18 2000-02-29 Takuma Co Ltd Higher level treatment of night soil and device therefor
JP2001047043A (en) * 1999-08-05 2001-02-20 Hitachi Plant Eng & Constr Co Ltd Method and apparatus for membrane filtration
JP3477682B2 (en) * 2000-07-10 2003-12-10 株式会社日立製作所 Water purification system
KR100408484B1 (en) * 2000-12-20 2003-12-06 주식회사 앤바이오 Treatment Equipment of Wastewater

Also Published As

Publication number Publication date
KR20070049560A (en) 2007-05-11
KR101335186B1 (en) 2013-11-29
TW200823153A (en) 2008-06-01
JP4862361B2 (en) 2012-01-25
JP2007130526A (en) 2007-05-31
CN1962493A (en) 2007-05-16
TWI379810B (en) 2012-12-21

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