CA2182357A1 - Method of treating waste water to remove harmful ion by coagulating sedimentation - Google Patents

Method of treating waste water to remove harmful ion by coagulating sedimentation

Info

Publication number
CA2182357A1
CA2182357A1 CA002182357A CA2182357A CA2182357A1 CA 2182357 A1 CA2182357 A1 CA 2182357A1 CA 002182357 A CA002182357 A CA 002182357A CA 2182357 A CA2182357 A CA 2182357A CA 2182357 A1 CA2182357 A1 CA 2182357A1
Authority
CA
Canada
Prior art keywords
sediment
ion
harmful ion
waste water
coagulating sedimentation
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.)
Granted
Application number
CA002182357A
Other languages
French (fr)
Other versions
CA2182357C (en
Inventor
Kenichi Ikeda
Yuichi Asai
Yuji Arai
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Publication of CA2182357A1 publication Critical patent/CA2182357A1/en
Application granted granted Critical
Publication of CA2182357C publication Critical patent/CA2182357C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C02F1/52—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
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • 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
    • C02F1/56—Macromolecular compounds
    • 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
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C02F1/583—Treatment of water, waste water, or sewage by removing specified dissolved compounds by removing fluoride or fluorine compounds
    • 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
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C02F1/62—Heavy metal compounds
    • 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
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/12—Halogens or halogen-containing compounds
    • C02F2101/14—Fluorine or fluorine-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/911—Cumulative poison
    • Y10S210/912—Heavy metal
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/911—Cumulative poison
    • Y10S210/912—Heavy metal
    • Y10S210/914—Mercury
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/915—Fluorine containing

Abstract

The invention relates to the treatment of waste water containing a harmful ion such as a heavy metal ion or fluorine ion by the coagulating sedimentation method using an inorganic coagulant such as an iron compound or an aluminum compound. After separating treated water from the sediment (sludge) in which the harmful ion is incorporated in insoluble form, the pH of a mixture of the sediment and water is suitably adjusted to cause elution of the harmful ion from the sediment. Then the sediment is separated from the eluate and reused as an inorganic coagulant. By reusing the sediment in this manner, the waste water treatment is accomplished without producing a large quantity of sludge and the consumption of inorganic coagulant and auxiliary chemicals can be greatly reduced, while the concentration of the harmful ion in the treated water becomes sufficiently low.
CA002182357A 1996-04-19 1996-07-30 Method of treating waste water to remove harmful ion by coagulating sedimentation Expired - Fee Related CA2182357C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8097248A JP2912226B2 (en) 1996-04-19 1996-04-19 Wastewater treatment method
JP8-097248 1996-04-19

Publications (2)

Publication Number Publication Date
CA2182357A1 true CA2182357A1 (en) 1997-10-20
CA2182357C CA2182357C (en) 2001-05-29

Family

ID=14187287

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002182357A Expired - Fee Related CA2182357C (en) 1996-04-19 1996-07-30 Method of treating waste water to remove harmful ion by coagulating sedimentation

Country Status (7)

Country Link
US (2) US5750033A (en)
EP (2) EP0802165B1 (en)
JP (1) JP2912226B2 (en)
KR (1) KR100200021B1 (en)
CA (1) CA2182357C (en)
DE (1) DE69613210T2 (en)
TW (1) TW438725B (en)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6638424B2 (en) * 2000-01-19 2003-10-28 Jensen Enterprises Stormwater treatment apparatus
JP3945541B2 (en) * 1997-01-27 2007-07-18 デグレマン Physicochemical treatment method of runoff water for consumption, especially surface water
US6039789A (en) * 1998-03-27 2000-03-21 Barrick Gold Corporation Removal of boron and fluoride from water
TW453978B (en) * 1998-06-23 2001-09-11 Ind Tech Res Inst Crystallization process for removing fluoride from wastewater
JP3169899B2 (en) * 1998-07-15 2001-05-28 日本電気環境エンジニアリング株式会社 Method and apparatus for treating fluorine-containing wastewater
JP3697361B2 (en) 1999-01-28 2005-09-21 シャープ株式会社 Waste water treatment method and waste water treatment equipment
TW495487B (en) * 1999-06-07 2002-07-21 Ind Tech Res Inst Process for removing fluoride from wastewater
US7638065B2 (en) * 2000-01-19 2009-12-29 Jensen Precast Stormwater treatment apparatus and method
JP3978303B2 (en) 2000-04-07 2007-09-19 シャープ株式会社 Waste water treatment method and waste water treatment equipment
US6372145B1 (en) 2000-06-05 2002-04-16 Power Engineering Company Fat and protein removal from process streams
JP3711229B2 (en) * 2000-06-30 2005-11-02 株式会社日本触媒 Waste liquid treatment method
US6613230B2 (en) * 2000-07-07 2003-09-02 Ionics, Incorporated Method for simultaneous removal of arsenic and fluoride from aqueous solutions
US6645385B2 (en) * 2000-09-26 2003-11-11 Ionics, Incorporated System and method for removal of fluoride from wastewater using single fluoride sensing electrode
US6821434B1 (en) * 2001-10-10 2004-11-23 Sandia Corporation System for removal of arsenic from water
TWI228104B (en) * 2003-07-29 2005-02-21 Min-Shing Tsai Sludge-free wastewater treatment process and apparatus
JP4508600B2 (en) * 2003-10-21 2010-07-21 栗田工業株式会社 Method and apparatus for treating fluorine-containing wastewater
US7329357B2 (en) * 2005-05-31 2008-02-12 Ming-Hui Liao Method for removing fluorine from a fluorine-containing wastewater
GB2430793A (en) * 2005-09-29 2007-04-04 Bookham Technology Plc Bragg grating reflection strength control
JP4615447B2 (en) * 2006-01-13 2011-01-19 オルガノ株式会社 Two-stage solid-liquid separation system and two-stage solid-liquid separation treatment method
US20090230054A1 (en) * 2006-02-28 2009-09-17 Debusk Thomas A Contaminant Removal System And Method For A Body Of Water
DE102007004310A1 (en) * 2007-01-29 2008-07-31 Siemens Ag Cleaning process for water polluted with sulfate and heavy metal ions involves adding cleaning substance to reduce concentration so that ions are precipitated
US20090010923A1 (en) * 2007-04-24 2009-01-08 University Of Maryland, Baltimore Treatment of cancer with anti-muscarinic receptor agents
WO2008141290A1 (en) * 2007-05-11 2008-11-20 Ch2M Hill, Inc. Low phosphorous water treatment methods and systems
US7520993B1 (en) 2007-12-06 2009-04-21 Water & Power Technologies, Inc. Water treatment process for oilfield produced water
JP2010099552A (en) * 2008-10-21 2010-05-06 Mitsubishi Materials Techno Corp Wastewater treatment method
CA2779280A1 (en) 2009-10-20 2011-04-28 David Soane Treatment of wastewater
US8721887B2 (en) 2009-12-07 2014-05-13 Ch2M Hill, Inc. Method and system for treating wastewater
JP5943176B2 (en) * 2010-10-29 2016-06-29 三菱マテリアル株式会社 Method and apparatus for treating harmful substance-containing water.
CN102153141B (en) * 2010-12-30 2012-05-30 甘肃锦世化工有限责任公司 Method for reducing trace element lead in sodium dichromate and chromic anhydride products
CN103007894B (en) * 2012-12-13 2014-12-10 南京信息工程大学 Soybean protein micro sphere material and preparation method and application of material in treating waste water containing heavy metal ion
JP6329448B2 (en) * 2014-07-03 2018-05-23 オルガノ株式会社 Waste water treatment method and waste water treatment equipment
US9650266B2 (en) 2014-10-14 2017-05-16 Institute Of Nuclear Energy Research, Atomic Energy Council, Executive Yuan Method of treating suspended solids and heavy metal ions in sewage
CN105600893A (en) * 2015-11-18 2016-05-25 常州市清流水处理剂有限公司 Polyferric chloride production method and device
CN105776465B (en) * 2016-03-04 2018-04-10 江苏永葆环保科技股份有限公司 A kind of compound coagulant for treatment of dyeing wastewater and preparation method thereof
JP2019195762A (en) * 2018-05-09 2019-11-14 株式会社神戸製鋼所 Decontamination treatment method
CN110950410A (en) * 2018-09-26 2020-04-03 光大水务（深圳）有限公司 Heavy medium coagulating sedimentation water treatment method
CN110526366A (en) * 2019-07-27 2019-12-03 江苏长江水务股份有限公司 The preparation method of the coagulant of fluoride in a kind of removal water body
KR102310305B1 (en) * 2019-09-19 2021-10-07 큰산기술(주) System for purifying groundwater
CN111573806A (en) * 2020-05-25 2020-08-25 神美科技有限公司 Deep fluorine removal agent and preparation method and application thereof
CN112850867B (en) * 2021-01-22 2022-04-22 北京华德创业环保设备有限公司 Deep defluorination medicament and preparation method thereof

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2128569A (en) * 1935-01-18 1938-08-30 Clarence J Velz Treatment of water and sewage
US3284350A (en) * 1964-02-12 1966-11-08 Nat Steel Corp Removal of tin and fluoride from aqueous solutions of the same
US3377271A (en) * 1966-05-31 1968-04-09 William T Neiman Process for the treatment of waste-containing waters
US3575853A (en) * 1968-12-24 1971-04-20 Lab Betz Inc Waste water treatment
SE351444B (en) * 1970-11-03 1972-11-27 Nordstjernan Rederi Ab
US3725266A (en) * 1971-08-12 1973-04-03 Haviland Prod Co Process for removing metal compound contaminants from waste water
JPS4931146A (en) * 1972-07-18 1974-03-20
JPS525783B2 (en) * 1973-06-14 1977-02-16
JPS5199853A (en) * 1975-02-28 1976-09-03 Hitachi Ltd
US4279756A (en) * 1976-05-03 1981-07-21 Commonwealth Scientific And Industrial Research Organization Water clarification
DE2839090C2 (en) * 1978-09-08 1984-06-20 Dorina Nähmaschinen GmbH, 7500 Karlsruhe Sewing machine housing
US4343706A (en) * 1980-08-04 1982-08-10 Purdue Research Foundation Method of removing heavy metals from industrial waste streams
JPS5771692A (en) * 1980-10-20 1982-05-04 Unitika Ltd Method for treatment of fuorine-containing waste water
JPS5813230A (en) * 1981-07-14 1983-01-25 Ntn Toyo Bearing Co Ltd Flexible retainer for rolling bearing
JPS60241988A (en) * 1984-05-16 1985-11-30 Hitachi Plant Eng & Constr Co Ltd Treatment of waste water containing fluorine
JP2564252B2 (en) * 1987-10-19 1996-12-18 千代田化工建設株式会社 Fluorine-containing wastewater treatment method
JPH03109994A (en) * 1989-09-26 1991-05-09 Yoko Yakuka Kogyo Kk Method for removing fluorine from aqueous solution containing fluorine
JPH0753276B2 (en) * 1989-10-03 1995-06-07 栗田工業株式会社 Fluoride-containing water treatment method
US5102556A (en) * 1990-03-30 1992-04-07 Union Oil Company Of California Method for rendering ferric hydroxide sludges recyclable
JPH04100591A (en) * 1990-08-15 1992-04-02 Toshiba Corp Method and apparatus for sewage/wastewater treatment

Also Published As

Publication number Publication date
EP0802165A1 (en) 1997-10-22
DE69613210T2 (en) 2002-04-18
EP0802165B1 (en) 2001-06-06
DE69613210D1 (en) 2001-07-12
US5855793A (en) 1999-01-05
KR100200021B1 (en) 1999-06-15
EP1010669A1 (en) 2000-06-21
JPH09276875A (en) 1997-10-28
JP2912226B2 (en) 1999-06-28
TW438725B (en) 2001-06-07
US5750033A (en) 1998-05-12
KR970069890A (en) 1997-11-07
CA2182357C (en) 2001-05-29

Similar Documents

Publication Publication Date Title
CA2182357A1 (en) Method of treating waste water to remove harmful ion by coagulating sedimentation
CA2282280A1 (en) A method for treating sludge from wastewater treatment
WO2002036500A3 (en) Method and apparatus for treatment of water and wastewater
DK0715603T3 (en) Process for the treatment of sewage sludge comprising at least one metal
DE60206800D1 (en) METHOD FOR THE TREATMENT OF WATER BY BALLASTED FLOODING AND DECANTING
CA2165168A1 (en) Method for the treatment of water treatment sludge
ES2001825A6 (en) Method for the purification of waste water, notably of urban waste water
EP0891951A4 (en) Method and apparatus for treating selenium-containing waste water
JPS5771693A (en) Method of removing phosphate ion contained in liquid
CA2265058A1 (en) Treatment of aqueous effluents by injection of carbon dioxide
JPS551831A (en) Excess sludge treating method
JPS59228993A (en) High-degree treatment of biological treating water
GB1368806A (en) Treatment of industrial and domestic waste waters
JPS5727191A (en) Method for treating water containing fluoride ion
JPS574284A (en) Heavy metal removing method in waste water
JPS6458304A (en) Removing method for silica contained in pickling waste liquid
JPS5597209A (en) Method for treating oil-containing aqueous medium
US20040094485A1 (en) Treatment of organic waste
JPS5771700A (en) Method for treatment of organic waste water
JPS5527043A (en) Removing bod and phosphorus from waste water
JPS57204298A (en) Dewatering method for highly-concentrated sludge
JPS5753298A (en) Treatment of organic liquid waste
ATA202191A (en) METHOD FOR TREATING WASTE
JPS5658595A (en) Removing method for heavy metal in waste water
JPH0419919B2 (en)

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed