JPS5631497A - Treatment of concentrated liquid from desalting apparatus - Google Patents

Treatment of concentrated liquid from desalting apparatus

Info

Publication number
JPS5631497A
JPS5631497A JP10663779A JP10663779A JPS5631497A JP S5631497 A JPS5631497 A JP S5631497A JP 10663779 A JP10663779 A JP 10663779A JP 10663779 A JP10663779 A JP 10663779A JP S5631497 A JPS5631497 A JP S5631497A
Authority
JP
Japan
Prior art keywords
liquid
compound
nacl
concentrated
concentrated liquid
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
JP10663779A
Other languages
Japanese (ja)
Other versions
JPS6235840B2 (en
Inventor
Takashi Suzuki
Hiroo Kato
Masaki Kondo
Takashi Watabe
Takashi Iori
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.)
Electric Power Development Co Ltd
Sumitomo Heavy Industries Ltd
Original Assignee
Electric Power Development Co Ltd
Sumitomo Heavy Industries 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 Electric Power Development Co Ltd, Sumitomo Heavy Industries Ltd filed Critical Electric Power Development Co Ltd
Priority to JP10663779A priority Critical patent/JPS5631497A/en
Publication of JPS5631497A publication Critical patent/JPS5631497A/en
Publication of JPS6235840B2 publication Critical patent/JPS6235840B2/ja
Granted 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis

Landscapes

  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

PURPOSE: To enable to recover sodium sulphate continuously by precipitating out anhydrous Glauber salt selectively from a concentrated liquid obtained after desalting a waste liquid from a desulfurizing apparatus of a coal fired power plant and said anhydrous Glauber salt is subjected to a solid-liquid separation.
CONSTITUTION: After a waste water containing a S compound, an N compound as well as NaCl and NaSO4 as main components is desalted, the obtained concentrated liquid is concentrated by an evaporating apparatus and, subsequently, the concentrated liquid is subjected to the incinerating treatment to oxidize and heat decomope the S compound, the N compound and a dissolved salt of NaCl and Na2SO4 exhausted along with an exhaust gas from an incinerating treatment procedure is dissolved in a liquid in a cooled precipitation apparatus. In this case, as the dissolving water, a part of the condensed water of said described evaporating apparatus is used and, while a condition of a temp. 35°C or more capable of preventing Na2SO4.10H2O from being precipitated is held without using a new heating source to selectively precipitate out only anhydrous Glauber salt being recovered by the solid-liquid separation. Subsequently, a liquid amount corresponding to an absolute amount of NaCl thrown into a system from a separated motor liquid is continuously withdrawn out of a system and the residual motor liquid is returned to the cooled precipitation apparatus.
COPYRIGHT: (C)1981,JPO&Japio
JP10663779A 1979-08-23 1979-08-23 Treatment of concentrated liquid from desalting apparatus Granted JPS5631497A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10663779A JPS5631497A (en) 1979-08-23 1979-08-23 Treatment of concentrated liquid from desalting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10663779A JPS5631497A (en) 1979-08-23 1979-08-23 Treatment of concentrated liquid from desalting apparatus

Publications (2)

Publication Number Publication Date
JPS5631497A true JPS5631497A (en) 1981-03-30
JPS6235840B2 JPS6235840B2 (en) 1987-08-04

Family

ID=14438622

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10663779A Granted JPS5631497A (en) 1979-08-23 1979-08-23 Treatment of concentrated liquid from desalting apparatus

Country Status (1)

Country Link
JP (1) JPS5631497A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102642966A (en) * 2012-04-23 2012-08-22 西安交通大学 Cooling crystallization desalting system for high-salinity waste water
CN105330081A (en) * 2015-12-01 2016-02-17 上海龙净环保科技工程有限公司 Method and system suitable for zero discharge of desulfurization waste water of power plant
CN107902832A (en) * 2017-12-15 2018-04-13 安徽普朗膜技术有限公司 Sulfate crystal mother liquid disposal system
CN112960817A (en) * 2021-03-02 2021-06-15 浙江海禹环保科技有限公司 Comprehensive treatment method and system for hydrazine hydrate waste salt

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03290255A (en) * 1990-04-06 1991-12-19 Canon Inc Recording head unit and recording device installed with same unit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102642966A (en) * 2012-04-23 2012-08-22 西安交通大学 Cooling crystallization desalting system for high-salinity waste water
CN105330081A (en) * 2015-12-01 2016-02-17 上海龙净环保科技工程有限公司 Method and system suitable for zero discharge of desulfurization waste water of power plant
CN107902832A (en) * 2017-12-15 2018-04-13 安徽普朗膜技术有限公司 Sulfate crystal mother liquid disposal system
CN107902832B (en) * 2017-12-15 2023-12-19 安徽普朗膜技术有限公司 Sodium sulfate crystallization mother liquor treatment system
CN112960817A (en) * 2021-03-02 2021-06-15 浙江海禹环保科技有限公司 Comprehensive treatment method and system for hydrazine hydrate waste salt

Also Published As

Publication number Publication date
JPS6235840B2 (en) 1987-08-04

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