GB1405690A - Method of purifying sewage - Google Patents

Method of purifying sewage

Info

Publication number
GB1405690A
GB1405690A GB5843573A GB5843573A GB1405690A GB 1405690 A GB1405690 A GB 1405690A GB 5843573 A GB5843573 A GB 5843573A GB 5843573 A GB5843573 A GB 5843573A GB 1405690 A GB1405690 A GB 1405690A
Authority
GB
United Kingdom
Prior art keywords
sedimentation
purifying sewage
tank
dec
sewage
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
GB5843573A
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.)
Johnson Construction Co AB
Original Assignee
Johnson Construction Co AB
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
Priority claimed from SE16548/72A external-priority patent/SE360344B/xx
Application filed by Johnson Construction Co AB filed Critical Johnson Construction Co AB
Publication of GB1405690A publication Critical patent/GB1405690A/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
    • C02F3/1215—Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/10—Settling tanks with multiple outlets for the separated liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2488—Feed or discharge mechanisms for settling tanks bringing about a partial recirculation of the liquid, e.g. for introducing chemical aids
    • 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
    • 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
    • C02F1/5281—Installations for water purification using chemical agents
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Activated Sludge Processes (AREA)

Abstract

1405690 Purifying sewage JOHNSON CONSTRUCTION CO AB 17 Dec 1973 [18 Dec 1972 18 June 1973] 58435/73 Heading C1C A method for biologically and chemically purifying sewage comprises subjecting the sewage to a biological purification process according to the activated sludge method (in an aeration tank (4)-see Fig. 1), followed by sedimentation in a sedimentation unit (a contact chamber (6) and a sedimentation tank (8)); a fast flow is continuously conducted from the outlet side of the sedimentation unit, admixed with the fast flow to form floes (in the flocculating tank (14)), and, subsequently the part flow is returned to the sedimentation unit where the floes are separated.
GB5843573A 1972-12-18 1973-12-17 Method of purifying sewage Expired GB1405690A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE16548/72A SE360344B (en) 1972-12-18 1972-12-18
SE7308556 1973-06-18

Publications (1)

Publication Number Publication Date
GB1405690A true GB1405690A (en) 1975-09-10

Family

ID=26656069

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5843573A Expired GB1405690A (en) 1972-12-18 1973-12-17 Method of purifying sewage

Country Status (10)

Country Link
JP (1) JPS4997461A (en)
AT (1) ATA1054273A (en)
AU (1) AU6314873A (en)
CA (1) CA1001781A (en)
DE (1) DE2360127A1 (en)
ES (1) ES421551A1 (en)
FR (1) FR2210576A1 (en)
GB (1) GB1405690A (en)
IT (1) IT1000520B (en)
NL (1) NL7316919A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021255597A1 (en) * 2020-06-15 2021-12-23 Andritz Delkor Pty Ltd Device and method for separating a suspension

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1036720A (en) * 1976-09-21 1978-08-15 Ferdinand Besik Process and apparatus for purifying waste waters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021255597A1 (en) * 2020-06-15 2021-12-23 Andritz Delkor Pty Ltd Device and method for separating a suspension

Also Published As

Publication number Publication date
JPS4997461A (en) 1974-09-14
NL7316919A (en) 1974-06-20
DE2360127A1 (en) 1974-06-27
CA1001781A (en) 1976-12-14
FR2210576A1 (en) 1974-07-12
ATA1054273A (en) 1975-06-15
AU6314873A (en) 1975-06-05
ES421551A1 (en) 1976-05-01
IT1000520B (en) 1976-04-10

Similar Documents

Publication Publication Date Title
GB1445109A (en) Method and apparatus for reducing toilet effluents to useable liquids adjustment devices
GB1149656A (en) Sewage treatment system
GB1524765A (en) Process and apparatus for the aerobic biological purification of liquid wastes containing organic pollutants
GB1440171A (en) Treatment of acqueous effluents to remove nitrate and nitrate ions
IE38034L (en) Biological purification of sewage
GB1328812A (en) Method and apparatus for treating effluent
GB1436478A (en) Process for treating waste water containing nitriles and cyanides
ES8704858A1 (en) Process and apparatus for the biological purification of waste water.
GB1096355A (en) Improvements in or relating to water purification processes
GB1128071A (en) Sewage treatment system
GB1405690A (en) Method of purifying sewage
ES429458A1 (en) Apparatus for biological purification of an effluent
GB1406255A (en) Process and apparatus for treating wastes by
GB1531902A (en) Purification of waste water by an activated sludge proces
ES467000A1 (en) Treatment of waste water or waste water-containing liquid
SU676568A1 (en) Waste water treatment method
GB1496069A (en) Method for the biological purification of effluent and the plant for carrying out the process
GB1408600A (en) Process for purifying waste water
GB1289519A (en)
GB1529934A (en) Treatment of palm oil effluents
GB1429264A (en) Process for purifying reducing waste waters containing thiocyana tes and thiosulphates
FR2238675A1 (en) Biological purificn of waste water and sewage - in one stage by algal and bacterial symbiosis
GB1190076A (en) Improvements in and relating to Methods and Means of Purifying Sewage
GB1363797A (en) Method for purifying water
GB1429370A (en) Method and plant for purification of waste water

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee