CA2463781C - Appareil et procede pour eliminer le phosphore des effluents d'un etang d'epuration - Google Patents

Appareil et procede pour eliminer le phosphore des effluents d'un etang d'epuration Download PDF

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Publication number
CA2463781C
CA2463781C CA 2463781 CA2463781A CA2463781C CA 2463781 C CA2463781 C CA 2463781C CA 2463781 CA2463781 CA 2463781 CA 2463781 A CA2463781 A CA 2463781A CA 2463781 C CA2463781 C CA 2463781C
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CA
Canada
Prior art keywords
crystallizer
ammonia
bed
liquid
struvite
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 - Lifetime
Application number
CA 2463781
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English (en)
Other versions
CA2463781A1 (fr
Inventor
Keith E. Bowers
Philip W. Westerman
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.)
North Carolina State University
Original Assignee
North Carolina State University
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 US10/659,239 external-priority patent/US6994782B2/en
Application filed by North Carolina State University filed Critical North Carolina State University
Publication of CA2463781A1 publication Critical patent/CA2463781A1/fr
Application granted granted Critical
Publication of CA2463781C publication Critical patent/CA2463781C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5209Regulation methods for flocculation or precipitation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/006Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5263Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/68Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/105Phosphorus compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

L'invention concerne un appareil (10) et un procédé pour éliminer le phosphore d'un débit d'effluents d'eaux usées (16) provenant d'un étang d'épuration d'effluents porcins. Le débit d'effluents d'eaux usées (16) est placé au fond d'un cristallisoir continu en forme de cône inversé (12) contenant un lit fluidisé de struvite. Une quantité efficace d'ammoniac (20) est introduite dans les effluents (16), au fond du cristallisoir (12), pour en augmenter le pH d'une valeur préétablie. Une quantité efficace de magnésium (18) est également introduite dans les effluents (16), au fond du cristallisoir (12). Les effluents d'eaux usées, dont la composition est rajustée, sont ensuite circulés en continu vers le haut, au travers du lit fluidisé de struvite, afin de réduire la teneur totale en phosphore des effluents (16) d'une quantité préétablie d'environ 80 % ou plus. Le débit d'effluents d'eaux usées traité (24) est retiré du sommet du cristallisoir (12), et les cristaux de struvite suffisamment grands pour s'enfoncer du fond du cristallisoir (12) sont périodiquement retirés du collecteur (22) situé sous le cristallisoir.
CA 2463781 2003-09-09 2003-09-15 Appareil et procede pour eliminer le phosphore des effluents d'un etang d'epuration Expired - Lifetime CA2463781C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/659,239 US6994782B2 (en) 2003-09-09 2003-09-09 Apparatus for removing phosphorus from waste lagoon effluent
US10/659,239 2003-09-09
PCT/US2003/029330 WO2004024637A1 (fr) 2002-09-13 2003-09-15 Appareil et procede pour eliminer le phosphore des effluents d'un etang d'epuration

Publications (2)

Publication Number Publication Date
CA2463781A1 CA2463781A1 (fr) 2004-03-25
CA2463781C true CA2463781C (fr) 2013-12-31

Family

ID=34622386

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2463781 Expired - Lifetime CA2463781C (fr) 2003-09-09 2003-09-15 Appareil et procede pour eliminer le phosphore des effluents d'un etang d'epuration

Country Status (3)

Country Link
AU (1) AU2003275019A1 (fr)
CA (1) CA2463781C (fr)
WO (1) WO2004024637A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MA34312B1 (fr) * 2010-05-18 2013-06-01 Ostara Nutrient Recovery Technologies Inc Traitement d'eaux usées contenant des phosphates
FR2962433B1 (fr) * 2010-07-08 2014-02-07 Naskeo Environnement Production d'un compose solide utilisable en tant qu'intrant agricole
CN102616966B (zh) * 2012-04-09 2013-06-05 河海大学 一种地下水除氟装置及除氟方法
CN104944561B (zh) * 2015-06-16 2017-11-24 景德镇陶瓷大学 一种基于菱镁石的废水脱氮除磷方法
CN106706485B (zh) * 2017-02-15 2023-06-06 辽宁科技大学 一种快速粒度测量壶及测量方法
CN108358294A (zh) * 2018-05-04 2018-08-03 谢晓进 畜禽养殖污水提取磷肥的设备及其使用方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3892539A (en) * 1969-09-26 1975-07-01 Merck & Co Inc Process for production of crystals in fluidized bed crystallizers
NL187312C (nl) * 1978-05-18 1991-08-16 Dhv Raadgevend Ing Werkwijze voor het defosfateren van water.
US5360546A (en) * 1992-04-01 1994-11-01 Ngk Insulators, Ltd. Method for treating organic sludge
US6287471B1 (en) * 1998-03-09 2001-09-11 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Treatment of aqueous effluents by injection of carbon dioxide
AU6144600A (en) * 1999-07-20 2001-02-05 Zenon Environmental Inc. Biological process for removing phosphorus involving a membrane filter

Also Published As

Publication number Publication date
CA2463781A1 (fr) 2004-03-25
WO2004024637A1 (fr) 2004-03-25
AU2003275019A1 (en) 2004-04-30
WO2004024637A9 (fr) 2004-05-06

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