GB1503093A - Process for treating excess sludge containing spent activated carbon powder in an activated sludge waste water purification method - Google Patents

Process for treating excess sludge containing spent activated carbon powder in an activated sludge waste water purification method

Info

Publication number
GB1503093A
GB1503093A GB1332876A GB1332876A GB1503093A GB 1503093 A GB1503093 A GB 1503093A GB 1332876 A GB1332876 A GB 1332876A GB 1332876 A GB1332876 A GB 1332876A GB 1503093 A GB1503093 A GB 1503093A
Authority
GB
United Kingdom
Prior art keywords
active carbon
powder
waste water
water treatment
carbon powder
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
Application number
GB1332876A
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.)
NITTETU CHEMICAL ENG Ltd
Nippon Steel Eco Tech Corp
Original Assignee
NITTETU CHEMICAL ENG Ltd
Nittetsu Kakoki 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 NITTETU CHEMICAL ENG Ltd, Nittetsu Kakoki KK filed Critical NITTETU CHEMICAL ENG Ltd
Publication of GB1503093A publication Critical patent/GB1503093A/en
Expired 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
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/1205—Particular type of activated sludge processes
    • C02F3/1226—Particular type of activated sludge processes comprising an absorbent material suspended in the mixed liquor
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/30—Active carbon
    • C01B32/354—After-treatment
    • C01B32/36—Reactivation or regeneration
    • 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
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Abstract

1503093 Regenerating active carbon from water treatment NITTETU CHEMICAL ENG Ltd 1 April 1976 [4 April 1975] 13328/76 Heading C1A Activated sludge containing active carbon powder, from waste water treatment, is treated to regenerate the active carbon by (i) dewatering and at least partially drying the mixture to form a powder, (ii) dispersing the powder in a furnace where it is vigorously agitated by high-velocity hot combustion gases from a burner, under conditions to selectively decompose the sludge and organic substances on the active carbon and gasify them, and so to regenerate the active carbon; and (iii) recirculating the active carbon to the aerator of the water treatment process. Preferred operating conditions in the furnace are 800-1000‹ C., oxygen concentration less than 5% by volume, and powder residence time of 0À3-5 seconds. The regenerated active carbon may be treated with acid, e.g. HCl at pH 2, to reduce its ash content prior to the recirculation.
GB1332876A 1975-04-04 1976-04-01 Process for treating excess sludge containing spent activated carbon powder in an activated sludge waste water purification method Expired GB1503093A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4041775A JPS51116062A (en) 1975-04-04 1975-04-04 Waste water treating method

Publications (1)

Publication Number Publication Date
GB1503093A true GB1503093A (en) 1978-03-08

Family

ID=12580075

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1332876A Expired GB1503093A (en) 1975-04-04 1976-04-01 Process for treating excess sludge containing spent activated carbon powder in an activated sludge waste water purification method

Country Status (5)

Country Link
JP (1) JPS51116062A (en)
DE (1) DE2614021C3 (en)
FR (1) FR2306171A1 (en)
GB (1) GB1503093A (en)
NL (1) NL7603458A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102616922A (en) * 2012-04-23 2012-08-01 重庆康达环保产业（集团）有限公司 PACT (Production Analysis Control Technique) novel process for treating non-biodegradable waste water by using circularly-reproducible powdered activated carbon
CN113680339A (en) * 2021-08-18 2021-11-23 北京工业大学 Liquid in-situ regeneration method for powdered activated carbon based on vacuum ultraviolet/chlorine/ultrasonic coupling effect

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4200524A (en) * 1978-10-25 1980-04-29 Biospherics Incorporated Bio-surface separation process
DE3344228A1 (en) * 1983-12-07 1985-06-20 Bergwerksverband Gmbh, 4300 Essen DEVICE AND METHOD FOR REGENERATING DRY, POWDER-SHAPED LOADED CARBON-BASED ADSORPTION AGENTS AND METHOD FOR THERMAL REGENERATION WITH THIS DEVICE
FR2598404B1 (en) * 1985-10-08 1989-12-01 Augarde Jacques WATER TREATMENT PROCESS USING RECYCLABLE ASBESTOS FIBERS
AT386552B (en) * 1986-05-28 1988-09-12 Andritz Ag Maschf METHOD AND SYSTEM FOR SEPARATING LIGHTNING MATERIALS FROM SUBSTRATE MIXTURES
JPH047094A (en) * 1990-04-25 1992-01-10 Nippon Steel Corp Treatment of excessive sludge in activated sludge treatment
JP2014024937A (en) * 2012-07-26 2014-02-06 Ihi Corp System and method for generating gasified gas

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH545254A (en) * 1972-09-27 1973-12-15 Ciba Geigy Ag Process for purifying waste water
CA1051566A (en) * 1973-08-22 1979-03-27 National Aeronautics And Space Administration Raw liquid waste treatment system and process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102616922A (en) * 2012-04-23 2012-08-01 重庆康达环保产业（集团）有限公司 PACT (Production Analysis Control Technique) novel process for treating non-biodegradable waste water by using circularly-reproducible powdered activated carbon
CN102616922B (en) * 2012-04-23 2013-12-18 重庆康达环保产业（集团）有限公司 PACT (Production Analysis Control Technique) novel process for treating non-biodegradable waste water by using circularly-reproducible powdered activated carbon
CN113680339A (en) * 2021-08-18 2021-11-23 北京工业大学 Liquid in-situ regeneration method for powdered activated carbon based on vacuum ultraviolet/chlorine/ultrasonic coupling effect
CN113680339B (en) * 2021-08-18 2023-11-24 北京工业大学 Vacuum ultraviolet/chlorine/ultrasonic coupling-based powder activated carbon liquid in-situ regeneration method

Also Published As

Publication number Publication date
DE2614021A1 (en) 1976-10-14
DE2614021B2 (en) 1980-11-27
JPS51116062A (en) 1976-10-13
JPS5422707B2 (en) 1979-08-08
NL7603458A (en) 1976-10-06
DE2614021C3 (en) 1981-10-08
FR2306171A1 (en) 1976-10-29

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Legal Events

Date Code Title Description
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
PS Patent sealed
SP Amendment (slips) printed
PCNP Patent ceased through non-payment of renewal fee