CA2781411C - Water purification process and water purifying apparatus - Google Patents

Water purification process and water purifying apparatus Download PDF

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Publication number
CA2781411C
CA2781411C CA2781411A CA2781411A CA2781411C CA 2781411 C CA2781411 C CA 2781411C CA 2781411 A CA2781411 A CA 2781411A CA 2781411 A CA2781411 A CA 2781411A CA 2781411 C CA2781411 C CA 2781411C
Authority
CA
Canada
Prior art keywords
water
polluted water
purification process
purifying apparatus
flocculant
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CA2781411A
Other languages
French (fr)
Other versions
CA2781411A1 (en
Inventor
Kenji Okishiro
Hiroshi Sasaki
Hiroki Yamamoto
Hajime Murakami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of CA2781411A1 publication Critical patent/CA2781411A1/en
Application granted granted Critical
Publication of CA2781411C publication Critical patent/CA2781411C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

The water purification process includes the steps of flocculating organic substances in a polluted water by adding a flocculant; and heating the polluted water or a supernatant obtained from the polluted water. The water purifying apparatus includes a flocculant adding unit configured to add a flocculant to a polluted water containing organic substances; and a heating unit configured to heat the polluted water or a supernatant obtained from the polluted water. Thus, organic acids contained in the polluted water can be removed from a large amount of the polluted water at high speed.
CA2781411A 2011-06-30 2012-06-27 Water purification process and water purifying apparatus Expired - Fee Related CA2781411C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011145156A JP5629650B2 (en) 2011-06-30 2011-06-30 Water treatment process and water purifier
JP2011-145156 2011-06-30

Publications (2)

Publication Number Publication Date
CA2781411A1 CA2781411A1 (en) 2012-12-30
CA2781411C true CA2781411C (en) 2014-12-23

Family

ID=47430207

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2781411A Expired - Fee Related CA2781411C (en) 2011-06-30 2012-06-27 Water purification process and water purifying apparatus

Country Status (2)

Country Link
JP (1) JP5629650B2 (en)
CA (1) CA2781411C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103708591A (en) * 2013-12-18 2014-04-09 广西科晟达机械制造有限公司 Polymetallic ore beneficiation wastewater recycling method
CA2906571C (en) 2015-09-30 2021-09-21 Suncor Energy Inc. Processing of aqueous waste streams to remove naphthenic acids
CN108751549A (en) * 2018-05-22 2018-11-06 芜湖致新信息科技有限公司 A kind of industrial waste water disposal device
JP6795204B2 (en) * 2018-08-17 2020-12-02 株式会社サムズ Recovery method and recovery device for polymer absorber
CN110066063A (en) * 2019-06-05 2019-07-30 江苏凯勒奇环保设备有限公司 A kind of purification system of quick removal mine water body middle and high concentration suspended matter

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS525963A (en) * 1975-07-04 1977-01-18 Hitachi Ltd Method of destroying abominability of organic waste liquid
JPS5384869A (en) * 1976-12-30 1978-07-26 Toshiba Machine Co Ltd Collecting system of kerosine
JPS5691807A (en) * 1979-12-27 1981-07-25 Fuji Kikai Seisakusho:Kk Flocculation of suspension in liquid
JPH08155434A (en) * 1994-12-09 1996-06-18 Hitachi Zosen Corp System for recovery of pure water from waste water
JP2001104939A (en) * 1999-10-07 2001-04-17 Nichibaku:Kk Method for cleaning wastewater
JP4195163B2 (en) * 1999-12-27 2008-12-10 三菱レイヨン株式会社 Waste liquid and exhaust gas treatment method
JP2001232104A (en) * 2000-02-28 2001-08-28 Ebara Corp Solid/liquid separation method of suspension
JP3882512B2 (en) * 2001-03-01 2007-02-21 住友化学株式会社 Wastewater treatment method
JP2003164857A (en) * 2001-12-04 2003-06-10 Tokuyama Corp Treatment method for waste liquid discharged from semiconductor manufacturing process step
GB2391227B (en) * 2002-06-18 2005-10-26 Sasol Technology Method of purifying fischer-tropsch derived water
WO2003106351A1 (en) * 2002-06-18 2003-12-24 Sasol Technology (Pty) Ltd Method of purifying fischer-tropsch derived water
JP2004070031A (en) * 2002-08-07 2004-03-04 Asahi Kasei Chemicals Corp Method of treating developer waste of photosensitive resin plate
JP2005262123A (en) * 2004-03-19 2005-09-29 Toray Ind Inc Waste liquid treatment method and manufacturing method for printing plate using the same
JP5098334B2 (en) * 2004-11-05 2012-12-12 株式会社日立プラントテクノロジー Method and apparatus for removing organic substances in oilfield-associated water
JP4360387B2 (en) * 2006-09-06 2009-11-11 株式会社日立プラントテクノロジー Water-based paint wastewater treatment method and apparatus
JP5157279B2 (en) * 2007-06-22 2013-03-06 株式会社日立プラントテクノロジー Oily water reuse system
JP5277997B2 (en) * 2009-01-29 2013-08-28 株式会社日立プラントテクノロジー Water purification method
JP5352256B2 (en) * 2009-01-29 2013-11-27 株式会社日立製作所 Waste water purification flocculant, and waste water purification method and waste water purification apparatus using the same
JP5218851B2 (en) * 2009-03-30 2013-06-26 株式会社日立プラントテクノロジー Aggregation floc drying method and aggregation floc drying apparatus
JP5222808B2 (en) * 2009-08-07 2013-06-26 株式会社日立製作所 Flocculant, sewage purification method using flocculant, and water purifier using flocculant
JP5343051B2 (en) * 2010-08-30 2013-11-13 株式会社日立製作所 Sewage purification method, flocculant, sewage purification device and oil extraction system using the same

Also Published As

Publication number Publication date
JP2013010084A (en) 2013-01-17
CA2781411A1 (en) 2012-12-30
JP5629650B2 (en) 2014-11-26

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Effective date: 20170627