GB1518357A - Process and arrangement for cleaning waste waters - Google Patents

Process and arrangement for cleaning waste waters

Info

Publication number
GB1518357A
GB1518357A GB5216275A GB5216275A GB1518357A GB 1518357 A GB1518357 A GB 1518357A GB 5216275 A GB5216275 A GB 5216275A GB 5216275 A GB5216275 A GB 5216275A GB 1518357 A GB1518357 A GB 1518357A
Authority
GB
United Kingdom
Prior art keywords
precipitated
coagulating
dec
mixing
coagulated
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
GB5216275A
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.)
Agrotechnika NP
Original Assignee
Agrotechnika NP
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 Agrotechnika NP filed Critical Agrotechnika NP
Publication of GB1518357A publication Critical patent/GB1518357A/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
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • 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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C02F1/586—Treatment of water, waste water, or sewage by removing specified dissolved compounds by removing ammoniacal nitrogen
    • 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
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

1518357 Treating waste water polluted with organic substances AGROTECHNIKA NP 19 Dec 1975 [22 Dec 1974] 52162/75 Heading C1C A process for cleaning industrial and agricultural waste water highly polluted with organic substances includes the steps of mixing the water with an alkalinizing agent containing calcium so as to obtain a pH above 9, saturating with CO 2 , coagulating the obtained precipitate by mixing the treated water with a coagulating agent, and separating the coagulated precipitate from the liquid. Insoluble calcareous salts of organic acids and phosphates are precipitated, and organic material is denatured due to the high pH, and also micro-organisms present are deactivated. The precipitated calcium carbonate impregnates the precipitated matter and crystallizes to give a stabilized suspension which is coagulated as above. Iron or aluminium salts may be used as coagulating agents.
GB5216275A 1974-12-22 1975-12-19 Process and arrangement for cleaning waste waters Expired GB1518357A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS887674A CS181403B1 (en) 1974-12-22 1974-12-22 Method and device for with organic substances strongly polluted waste water treatment in industry and agriculture

Publications (1)

Publication Number Publication Date
GB1518357A true GB1518357A (en) 1978-07-19

Family

ID=5439949

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5216275A Expired GB1518357A (en) 1974-12-22 1975-12-19 Process and arrangement for cleaning waste waters

Country Status (6)

Country Link
CS (1) CS181403B1 (en)
FR (1) FR2294986A1 (en)
GB (1) GB1518357A (en)
IT (1) IT1051391B (en)
NL (1) NL172228C (en)
SE (1) SE429330B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5618439A (en) * 1993-04-20 1997-04-08 Boliden Contech Ab Method for purifying industrial sewage water
CN100429157C (en) * 2005-10-31 2008-10-29 中国石油化工股份有限公司 Method for treating ammonia nitrogen wastewater
US8470181B2 (en) 2007-06-15 2013-06-25 Omya Development Ag Surface-reacted calcium carbonate in combination with hydrophobic adsorbent for water treatment
US8728322B2 (en) 2007-03-21 2014-05-20 Omya International Ag Process for the purification of water using surface treated calcium carbonate
RU2534238C2 (en) * 2008-10-15 2014-11-27 Нордкалк Ой Эйби Acidic aqueous composition and applying thereof for drainage or separation of solid substances

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU172727B (en) * 1976-02-07 1978-11-28 Tatabanyai Szenbanyak Method for cleaning thin manure formed in big farms keeping cattle
CS201654B1 (en) * 1976-10-29 1980-11-28 Jaroslav Kristoufek Method of obtaining concentrated nitrogenous and organic phosphatocalcareous products from organic materials,animal excrements and sewage sludge
DE2738309A1 (en) * 1977-08-25 1979-03-15 Linde Ag METHOD FOR CLEANING CALCIUM-CONTAINING ORGANICALLY BURNISHED WASTE WATER
FR2420363A2 (en) * 1978-03-22 1979-10-19 Soaf Purificn. of waste water with lime and carbon di:oxide - followed by sepn. of sludge by filtration
US4738750A (en) * 1986-02-10 1988-04-19 Stone Container Corp. System and method for treating pulp and paper mill waste water
DK294089D0 (en) * 1989-06-15 1989-06-15 Ingenioer Og Arkitektfirmaet J PROCEDURE AND PLANT FOR TREATMENT OF ORGANIC LOADED WASTE
US5275734A (en) * 1992-08-04 1994-01-04 International Business Machines Corporation Chemical pre-treatment and biological destruction of propylene carbonate waste streams effluent streams to reduce the biological oxygen demand thereof
EP0672624A1 (en) * 1994-02-21 1995-09-20 Ecc International Limited Treatment of waste water
FR3009552A1 (en) * 2013-08-08 2015-02-13 Jean Paul Braun PROCESS FOR TREATING CONTINUOUS SANITATION WITH ALKALINE FLUID NEUTRALIZATION SOLUTION OF LIQUID EFFLUENTS AND USE THEREOF

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE75875C (en) * C. SALZBERGER in Burgsteinfurt i. W Device for the purification of service water using lime and carbon dioxide
US2196840A (en) * 1935-10-11 1940-04-09 Micajah T Singleton Sewage treatment
CH418990A (en) * 1963-02-21 1966-08-15 Hildebrand Karl Heinz Fa Process for clarifying waste water
US3736254A (en) * 1971-06-03 1973-05-29 Owens Illinois Inc System for removing color from paper mill liquid waste

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5618439A (en) * 1993-04-20 1997-04-08 Boliden Contech Ab Method for purifying industrial sewage water
EP0622338B1 (en) * 1993-04-20 1997-08-27 Boliden Contech Ab A method for purifying industrial sewage water
CN100429157C (en) * 2005-10-31 2008-10-29 中国石油化工股份有限公司 Method for treating ammonia nitrogen wastewater
US8728322B2 (en) 2007-03-21 2014-05-20 Omya International Ag Process for the purification of water using surface treated calcium carbonate
US9745212B2 (en) 2007-03-21 2017-08-29 Omya International Ag Surface-reacted calcium carbonate and its use in waste water treatment
US8470181B2 (en) 2007-06-15 2013-06-25 Omya Development Ag Surface-reacted calcium carbonate in combination with hydrophobic adsorbent for water treatment
RU2534238C2 (en) * 2008-10-15 2014-11-27 Нордкалк Ой Эйби Acidic aqueous composition and applying thereof for drainage or separation of solid substances

Also Published As

Publication number Publication date
FR2294986A1 (en) 1976-07-16
SE429330B (en) 1983-08-29
NL172228C (en) 1983-08-01
FR2294986B1 (en) 1979-07-27
IT1051391B (en) 1981-04-21
CS181403B1 (en) 1978-03-31
SE7514541L (en) 1976-06-23
NL172228B (en) 1983-03-01
NL7514872A (en) 1976-06-24

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Legal Events

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