GB1342854A - Method and apparatus for the purification of waste liquids - Google Patents

Method and apparatus for the purification of waste liquids

Info

Publication number
GB1342854A
GB1342854A GB2784472A GB2784472A GB1342854A GB 1342854 A GB1342854 A GB 1342854A GB 2784472 A GB2784472 A GB 2784472A GB 2784472 A GB2784472 A GB 2784472A GB 1342854 A GB1342854 A GB 1342854A
Authority
GB
United Kingdom
Prior art keywords
oxygen
bed
waste liquid
waste liquids
floes
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
GB2784472A
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.)
LINDQVIST STIG VATTENANLAEGG
Original Assignee
LINDQVIST STIG VATTENANLAEGG
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 LINDQVIST STIG VATTENANLAEGG filed Critical LINDQVIST STIG VATTENANLAEGG
Publication of GB1342854A publication Critical patent/GB1342854A/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
    • 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
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic 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
    • C02F3/06—Aerobic processes using submerged filters
    • 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
    • C02F3/10—Packings; Fillings; Grids
    • 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

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Analytical Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

1342854 Purifying waste liquids INGENJORSFIRMAN VATTENANLAGGNINGER STIG LINDQVIST AB 14 June 1972 [14 June 1971] 27844/72 Heading C1C A method of purifying waste liquids containing biologically decomposable organic material and phosphorus compounds (e.g. sludge free sewage), comprises passing the waste liquid in the presence of oxygen or oxygen-containing gas (e.g. air or oxygen enriched air) through a bed containing iron and/or aluminium, in which microfiora capable of decomposing the organic material is formed and iron and/or aluminium is (are) dissolved to flocculate the phosphorus compounds, and separating (e.g. by settling or filtering) the floes from the purified sewage. Chromium compounds, if present in the waste liquid, are removed by the process. The bed may comprise inert material, e.g. macadam. In the Figure the waste liquid is passed from inlet 11 through bed 12 in counterflow to oxygen-containing gas from inlet 14 and the floes are separated in settling compartment 16.
GB2784472A 1971-06-14 1972-06-14 Method and apparatus for the purification of waste liquids Expired GB1342854A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE766571A SE384494B (en) 1971-06-14 1971-06-14 SET AND APPLIANCE FOR CLEANING THE WASTEWATER

Publications (1)

Publication Number Publication Date
GB1342854A true GB1342854A (en) 1974-01-03

Family

ID=20271968

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2784472A Expired GB1342854A (en) 1971-06-14 1972-06-14 Method and apparatus for the purification of waste liquids

Country Status (5)

Country Link
CA (1) CA972484A (en)
DE (1) DE2228732A1 (en)
FR (1) FR2141875B1 (en)
GB (1) GB1342854A (en)
SE (1) SE384494B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3517600A1 (en) * 1985-05-15 1986-11-20 Water Engineering and Plant Construction GtA reg. Trust, Vaduz Process and apparatus for the aerobic purification of waste waters

Also Published As

Publication number Publication date
CA972484A (en) 1975-08-05
SE384494B (en) 1976-05-10
FR2141875A1 (en) 1973-01-26
FR2141875B1 (en) 1978-08-04
DE2228732A1 (en) 1972-12-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee