NL7802124A - Effluent water treatment to remove nitrogenous and organic materials - by passing successively through denitrification and nitrification zones - Google Patents

Effluent water treatment to remove nitrogenous and organic materials - by passing successively through denitrification and nitrification zones

Info

Publication number
NL7802124A
NL7802124A NL7802124A NL7802124A NL7802124A NL 7802124 A NL7802124 A NL 7802124A NL 7802124 A NL7802124 A NL 7802124A NL 7802124 A NL7802124 A NL 7802124A NL 7802124 A NL7802124 A NL 7802124A
Authority
NL
Netherlands
Prior art keywords
zone
denitrification
effluent water
nitrification
effluent
Prior art date
Application number
NL7802124A
Other languages
Dutch (nl)
Original Assignee
Stamicarbon
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 NL7702236A external-priority patent/NL7702236A/en
Application filed by Stamicarbon filed Critical Stamicarbon
Priority to NL7802124A priority Critical patent/NL7802124A/en
Publication of NL7802124A publication Critical patent/NL7802124A/en

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
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • 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
    • C02F3/28—Anaerobic digestion processes
    • 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
    • C02F3/30—Aerobic and anaerobic processes
    • C02F3/302—Nitrification and denitrification treatment
    • 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)
  • Microbiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

Removal of organic substances and nitrogen cpds. from effluent waters with the aid of microorganisms is described. The water is passed continuously and successively through a denitrification zone and a hitrification zone and part of the liquor emerging from the nitrification zone is returned to the denitrification zone, whilst the remainder is withdrawn. Part of the effluent water to be treated is passed directly to the nitrification zone. The ratio of the feed of effluent water to the denitrification zone to the feed of effluent water to the nitrification zone and the amt. of liquor from the nitrification zone which is fed back to the denitrification zone, are pref. adjusted such that nitrate is present in the liquor emerging from the denitrification zone. Process is esp. useful for treating effluent water with a relatively low content on nitrogen cpds., e.g. domestic effluents. The process ensures improved oxidn. of the organic cpds. present, which reduces the amt. of undesired anaerobic bacteria formed in the active sludge. This improves the sludge quality w.r.t. settling properties, so that faster settling is achieved and smaller settling tanks can be used.
NL7802124A 1977-03-02 1978-02-25 Effluent water treatment to remove nitrogenous and organic materials - by passing successively through denitrification and nitrification zones NL7802124A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7802124A NL7802124A (en) 1977-03-02 1978-02-25 Effluent water treatment to remove nitrogenous and organic materials - by passing successively through denitrification and nitrification zones

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7702236A NL7702236A (en) 1977-03-02 1977-03-02 PROCEDURE FOR THE REMOVAL OF ORGANIC SUBSTANCES AND NITROGEN COMPOUNDS FROM WASTE WATER.
NL7802124A NL7802124A (en) 1977-03-02 1978-02-25 Effluent water treatment to remove nitrogenous and organic materials - by passing successively through denitrification and nitrification zones

Publications (1)

Publication Number Publication Date
NL7802124A true NL7802124A (en) 1978-09-05

Family

ID=26645298

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7802124A NL7802124A (en) 1977-03-02 1978-02-25 Effluent water treatment to remove nitrogenous and organic materials - by passing successively through denitrification and nitrification zones

Country Status (1)

Country Link
NL (1) NL7802124A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988006570A1 (en) * 1987-02-27 1988-09-07 Lorenz Guenter Biological dephosphatization and (de)nitrification
GR880100553A (en) * 1988-08-26 1990-08-22 Lorenz Gunter Method of sewage treatment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988006570A1 (en) * 1987-02-27 1988-09-07 Lorenz Guenter Biological dephosphatization and (de)nitrification
GR880100553A (en) * 1988-08-26 1990-08-22 Lorenz Gunter Method of sewage treatment

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Legal Events

Date Code Title Description
BI The patent application has been withdrawn