JPS5719078A - Disposal of fly ash - Google Patents

Disposal of fly ash

Info

Publication number
JPS5719078A
JPS5719078A JP9261080A JP9261080A JPS5719078A JP S5719078 A JPS5719078 A JP S5719078A JP 9261080 A JP9261080 A JP 9261080A JP 9261080 A JP9261080 A JP 9261080A JP S5719078 A JPS5719078 A JP S5719078A
Authority
JP
Japan
Prior art keywords
fly ash
ammonia
ash
water
exhaust gas
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.)
Pending
Application number
JP9261080A
Other languages
Japanese (ja)
Inventor
Takanori Kuwabara
Taiji Kamiguchi
Yukio Takahashi
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.)
Mitsubishi Power Ltd
Original Assignee
Babcock Hitachi KK
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 Babcock Hitachi KK filed Critical Babcock Hitachi KK
Priority to JP9261080A priority Critical patent/JPS5719078A/en
Publication of JPS5719078A publication Critical patent/JPS5719078A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Processing Of Solid Wastes (AREA)

Abstract

PURPOSE: To remove ammonia content from fly ash with high efficiency, by adding water to fly ash which was modified by addition of an alkali so that the pH of a solution prepared by dissolving 1g of the ash in 100ml of water will be 10 or higher, and deaerating the fly ash.
CONSTITUTION: An alkali 3, e,g., quick lime, slaked lime, limestone or the like, is added to fly ash to modify the ash so that the pH of its aqueous solution obtained by adding 1g of the ash to 100ml of water will be 10 or higher. The fly ash is then introduced into a reactor 3, where it is mixed and reacted with water under an agitating condition to liberate ammonia. Ammonia-contg. exhaust gas is introduced through a pipe line 8 into a ammonia recovery tower 5, where the ammonia content is separated by adsorption before the exhaust gas is discharged into the air, or reused as a reducing agent to be fed to the exhaust gas-feed line 11 of an ammonia- reducing denitrifier 10.
COPYRIGHT: (C)1982,JPO&Japio
JP9261080A 1980-07-09 1980-07-09 Disposal of fly ash Pending JPS5719078A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9261080A JPS5719078A (en) 1980-07-09 1980-07-09 Disposal of fly ash

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9261080A JPS5719078A (en) 1980-07-09 1980-07-09 Disposal of fly ash

Publications (1)

Publication Number Publication Date
JPS5719078A true JPS5719078A (en) 1982-02-01

Family

ID=14059198

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9261080A Pending JPS5719078A (en) 1980-07-09 1980-07-09 Disposal of fly ash

Country Status (1)

Country Link
JP (1) JPS5719078A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57122986A (en) * 1981-01-26 1982-07-31 Mitsubishi Heavy Ind Ltd Treatment of coal ash
JPH05116933A (en) * 1990-12-21 1993-05-14 Martin Gmbh Fuer Umwelt & Energietech Process for recovering or removing ammonia or ammonium compound from dust mixture or ablution water
JPH05116934A (en) * 1990-12-21 1993-05-14 Martin Gmbh Fuer Umwelt & Energietech Process for recovering ammonia or ammonium compound from mixed dust or process for removing its dangerousness
WO2000050123A1 (en) * 1999-02-24 2000-08-31 Separation Technologies, Inc. Method for removing ammonia from ammonia contaminated fly ash
US6790264B2 (en) 2000-03-08 2004-09-14 Isg Resources, Inc. Control of ammonia emission from ammonia laden fly ash in concrete
CN111410211A (en) * 2020-04-23 2020-07-14 苏州固利环保科技有限公司 Sintering machine head ash filtrate deamination treatment method
JPWO2020184392A1 (en) * 2019-03-08 2021-10-28 住友精化株式会社 Water-absorbent resin particles and their manufacturing method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57122986A (en) * 1981-01-26 1982-07-31 Mitsubishi Heavy Ind Ltd Treatment of coal ash
JPH05116933A (en) * 1990-12-21 1993-05-14 Martin Gmbh Fuer Umwelt & Energietech Process for recovering or removing ammonia or ammonium compound from dust mixture or ablution water
JPH05116934A (en) * 1990-12-21 1993-05-14 Martin Gmbh Fuer Umwelt & Energietech Process for recovering ammonia or ammonium compound from mixed dust or process for removing its dangerousness
WO2000050123A1 (en) * 1999-02-24 2000-08-31 Separation Technologies, Inc. Method for removing ammonia from ammonia contaminated fly ash
US6790264B2 (en) 2000-03-08 2004-09-14 Isg Resources, Inc. Control of ammonia emission from ammonia laden fly ash in concrete
JPWO2020184392A1 (en) * 2019-03-08 2021-10-28 住友精化株式会社 Water-absorbent resin particles and their manufacturing method
CN111410211A (en) * 2020-04-23 2020-07-14 苏州固利环保科技有限公司 Sintering machine head ash filtrate deamination treatment method

Similar Documents

Publication Publication Date Title
US3855391A (en) Sludge stabilization with gypsum
GB1448959A (en) Process for the deodorisation of air containing foul-smelling constituents
JPS5719078A (en) Disposal of fly ash
US5827488A (en) Process for removing SO2 and NOx from a gaseous stream
US4793982A (en) Use of nitrites to enhance SO2 removal in flue gas desulfurization wet scrubbers
CN102580498B (en) Comprehensive treatment method for high-concentration ammonia nitrogen waste water and boiler flue gas
JPS55160091A (en) Purification of gas and treatment of waste water
JPS55145599A (en) Treatment of waste aqueous solution containing ammonium radical, sulfate radical and organic compound
JPS6018473B2 (en) How to dispose of fly ash
JPS57177331A (en) Removal of hydrogen sulfide
JPS5765314A (en) Treatment of fly ash
JPS57187018A (en) Reutilizing method by circulating hot waste gas containing moisture
JPS5697524A (en) Treatment of coal ash
JPS5517041A (en) Treating waste smoke and ash
JPS5499074A (en) Recovering method for gypsum in wet desulfurization apparatus for exhaust combustion gas
JPS57122986A (en) Treatment of coal ash
Głomba et al. Conversion of calcium carbonate into syntetic gypsum in flue gas desulphurization technology usnig wet limestone metod
JPS53113775A (en) Absorption apparatus for gas
CN114699890A (en) System and method for adsorbing and solidifying carbon dioxide by industrial sludge
JPS574278A (en) Treatment of cyan containing waste
JPS5362358A (en) Method of purifying waste water from desulfurization of exhaust gas
JPS5448684A (en) Absorption of so2 in exhaust gas of wet type desulfurization equipment
JPS5498046A (en) Method of purifying waste water
JPS5342180A (en) Wet treating method for exhaust combustion gas
JPS54142176A (en) Waste gas treatment