MY191965A - Method for washing fly ash - Google Patents

Method for washing fly ash

Info

Publication number
MY191965A
MY191965A MYPI2019002423A MYPI2019002423A MY191965A MY 191965 A MY191965 A MY 191965A MY PI2019002423 A MYPI2019002423 A MY PI2019002423A MY PI2019002423 A MYPI2019002423 A MY PI2019002423A MY 191965 A MY191965 A MY 191965A
Authority
MY
Malaysia
Prior art keywords
fly ash
washing water
mixing step
mixed solution
liquid separation
Prior art date
Application number
MYPI2019002423A
Inventor
Katsuyoshi Tanida
Noboru Miyaoka
Masanobu Noshita
Tadashi Ito
Yutaka Shigemori
Original Assignee
Kobelco Eco Solutions Co 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 Kobelco Eco Solutions Co Ltd filed Critical Kobelco Eco Solutions Co Ltd
Publication of MY191965A publication Critical patent/MY191965A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/38—Removing components of undefined structure
    • B01D53/40—Acidic components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/68—Halogens or halogen compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/96—Regeneration, reactivation or recycling of reactants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/30—Alkali metal compounds
    • B01D2251/304—Alkali metal compounds of sodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/30—Alkali metal compounds
    • B01D2251/306—Alkali metal compounds of potassium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/40—Alkaline earth metal or magnesium compounds
    • B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/204—Inorganic halogen compounds
    • B01D2257/2047—Hydrofluoric acid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B2101/00—Type of solid waste
    • B09B2101/30—Incineration ashes

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treating Waste Gases (AREA)

Abstract

A method for washing fly ash according to the present invention includes: a mixing step of mixing fly ash that is collected from an exhaust gas (A) neutralized with an alkaline neutralizer, with washing water; and a solid-liquid separation step of subjecting the mixed solution of the fly ash and the washing water obtained in the mixing step to solid liquid separation to thereby obtain dehydrated cake (B) and used washing water (C), wherein in the mixing step, the used washing water is reused as at least a part of the washing water to allow a soluble evaporation residue in the mixed solution to be at least 20%. Fig. 2
MYPI2019002423A 2016-11-18 2017-11-17 Method for washing fly ash MY191965A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016224778A JP6261706B1 (en) 2016-11-18 2016-11-18 How to clean fly ash
PCT/JP2017/041531 WO2018092894A1 (en) 2016-11-18 2017-11-17 Fly ash cleaning method

Publications (1)

Publication Number Publication Date
MY191965A true MY191965A (en) 2022-07-21

Family

ID=60989172

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2019002423A MY191965A (en) 2016-11-18 2017-11-17 Method for washing fly ash

Country Status (4)

Country Link
JP (1) JP6261706B1 (en)
GB (1) GB2571048B (en)
MY (1) MY191965A (en)
WO (1) WO2018092894A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7145420B2 (en) * 2020-12-25 2022-10-03 住友大阪セメント株式会社 Cement raw material manufacturing method
CN115231753B (en) * 2022-07-25 2024-02-02 中冶赛迪技术研究中心有限公司 Method for treating sintering machine head ash by using membrane concentrated strong brine
CN116037630B (en) * 2022-08-17 2024-06-28 中国矿业大学 Method for converting second-class coal-based solid waste into first-class coal-based solid waste and repairing damaged land

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07323212A (en) * 1994-05-30 1995-12-12 Tsuyako Nemoto Waste incineration treatment and device therefor
WO2002018069A1 (en) * 2000-09-01 2002-03-07 Tech-Wise A/S Process for the treatment of bottom ash from waste incineration plants
JP4243661B2 (en) * 2002-09-30 2009-03-25 Ｄｏｗａメタルマイン株式会社 Dust disposal method
CA2593525C (en) * 2004-12-28 2011-05-10 Renal Solutions, Inc. Method of synthesizing zirconium phosphate particles
JP2007054801A (en) * 2005-08-26 2007-03-08 Mitsui Eng & Shipbuild Co Ltd Apparatus and method for treating fly ash
JP2007069066A (en) * 2005-09-05 2007-03-22 Mitsui Eng & Shipbuild Co Ltd Method for treating fly ash
JP2007083144A (en) * 2005-09-21 2007-04-05 Mitsubishi Heavy Ind Ltd Ash treating method and system
JP2008062180A (en) * 2006-09-07 2008-03-21 Sanei Kk Waste disposal method
JP4826532B2 (en) * 2007-04-17 2011-11-30 三菱マテリアル株式会社 Processing method of molten fly ash
JP2008290005A (en) * 2007-05-24 2008-12-04 Mhi Environment Engineering Co Ltd Incinerated ash treatment method and system
JP2010137141A (en) * 2008-12-10 2010-06-24 Mitsubishi Heavy Ind Ltd Method and system for treating waste ash washing water
JP5783547B2 (en) * 2010-03-25 2015-09-24 三菱重工環境・化学エンジニアリング株式会社 Incineration ash treatment system
CN105478449A (en) * 2016-01-07 2016-04-13 浙江泰来环保科技有限公司 Garbage incineration fly ash curing system

Also Published As

Publication number Publication date
GB201908032D0 (en) 2019-07-17
GB2571048A (en) 2019-08-14
JP6261706B1 (en) 2018-01-17
JP2018079444A (en) 2018-05-24
WO2018092894A1 (en) 2018-05-24
GB2571048B (en) 2022-10-26

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